BULLETIN
Tropical Storm Marco Advisory Number 19
NWS National Hurricane Center Miami FL AL142020
400 PM CDT Mon Aug 24 2020

…MARCO EXPECTED TO CONTINUE TO PRODUCE GUSTY WINDS AND HEAVY
RAINFALL OVER PORTIONS OF THE NORTHERN GULF COAST THROUGH THIS
EVENING…

SUMMARY OF 400 PM CDT…2100 UTC…INFORMATION
———————————————-
LOCATION…29.0N 88.9W
ABOUT 15 MI…20 KM ESE OF THE MOUTH OF THE MISSISSIPPI RIVER
MAXIMUM SUSTAINED WINDS…40 MPH…65 KM/H
PRESENT MOVEMENT…NW OR 320 DEGREES AT 7 MPH…11 KM/H
MINIMUM CENTRAL PRESSURE…1008 MB…29.77 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

There are no coastal watches or warnings in effect.

Gusty winds, heavy rainfall, and lingering coastal flooding are
expected from Marco along portions of the Gulf Coast through this
evening. For information on these hazards see products from your
local National Weather Service office.

Tropical cyclone wind and surge watches have been issued for
portions of the U.S. Gulf Coast for Tropical Storm Laura.

For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.

DISCUSSION AND OUTLOOK
———————-
At 400 PM CDT (2100 UTC), the center of Tropical Storm Marco was
located near latitude 29.0 North, longitude 88.9 West. Marco is
moving toward the northwest near 7 mph (11 km/h), a turn to the
west-northwest and a slight increase in forward speed is expected
to occur tonight. On the forecast track, Marco will move inland
over southeastern Louisiana tonight, and across southern Louisiana
on Tuesday.

Maximum sustained winds are near 40 mph (65 km/h) with higher gusts.
Weakening is expected, and Marco is forecast to become a
tropical depression tonight and degenerate to a remnant low on
Tuesday.

Tropical-storm-force winds extend outward up to 80 miles (130 km)
from the center. A National Ocean Service weather station located
on Petit Bois Island, Mississippi recently reported a wind gust to
38 mph (61 km/h).

The estimated minimum central pressure is 1008 mb (29.77 inches).

HAZARDS AFFECTING LAND
———————-
WIND: Wind gusts to tropical storm force are possible over the
coastal sections of southeastern Louisiana and Mississippi through
this evening.

RAINFALL: Marco is expected to produce additional rainfall
accumulations of 2 to 4 inches with additional isolated totals of 7
inches across portions of the north-central Gulf coast and
southeastern United States through Wednesday. Rain totals related
to Marco near Apalachicola, Florida reached as high as 11.81 inches
on Sunday per a CoCoRaHS report. The additional rainfall may result
in areas of flash, urban and small stream flooding along the same
area.

SURF: Swells generated by Marco are likely to affect portions of
the northern Gulf Coast for the next day or so. These swells
are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.

TORNADOES: A couple of tornadoes are possible late this afternoon
through tonight across the Florida Panhandle, southern Georgia, far
southern Alabama, and far southern Mississippi.

BULLETIN
Tropical Storm Laura Advisory Number 20
NWS National Hurricane Center Miami FL AL132020
500 PM EDT Mon Aug 24 2020

…CENTER OF LAURA PASSING NEAR THE ISLE OF YOUTH….
…HURRICANE AND STORM SURGE WATCHES ISSUED FOR A PORTION OF THE
NORTHWEST GULF COAST…

SUMMARY OF 500 PM EDT…2100 UTC…INFORMATION
———————————————-
LOCATION…21.7N 82.2W
ABOUT 40 MI…65 KM E OF THE ISLE OF YOUTH
ABOUT 175 MI…280 KM E OF THE WESTERN TIP OF CUBA
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…WNW OR 290 DEGREES AT 20 MPH…31 KM/H
MINIMUM CENTRAL PRESSURE…1001 MB…29.56 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

A Storm Surge Watch is in effect from San Luis Pass, Texas, to Ocean
Springs, Mississippi, including Lake Pontchartrain, Lake Maurepas,
and Lake Borgne for areas outside of the southeast Louisiana
Hurricane and Storm Damage Risk Reduction System.

A Hurricane Watch is in effect from Port Bolivar, Texas, to
west of Morgan City, Louisiana.

A Tropical Storm Watch is in effect from south of Port Bolivar to
San Luis Pass Texas and from Morgan City to the Mouth of the
Mississippi River.

The Tropical Storm Warning for Little Cayman and Cayman Brac has
been discontinued.

The Tropical Storm Warning for the Cuban provinces of Camaguey and
Las Tunas has been discontinued.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Watch is in effect for…
* San Luis Pass Texas to Ocean Springs Mississippi
* Lake Pontchartrain, Lake Maurepas, and Lake Borgne

A Hurricane Watch is in effect for…
* Port Bolivar Texas to west of Morgan City Louisiana

A Tropical Storm Warning is in effect for…
* Cuban provinces of Ciego De Avila, Sancti Spiritus, Villa Clara,
Cienfuegos, Matanzas, Mayabeque, La Habana, Artemisa, Pinar del
Rio, and the Isle of Youth
* Florida Keys from Craig Key to Key West
* Dry Tortugas

A Tropical Storm Watch is in effect for…
* South of Port Bolivar to San Luis Pass Texas
* Morgan City Louisiana to the Mouth of the Mississippi River

A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations during the next 48 hours.
For a depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov.

A Hurricane Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
dangerous.

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 500 PM EDT (2100 UTC), the center of Tropical Storm Laura was
located near latitude 21.7 North, longitude 82.2 West. Laura is
moving toward the west-northwest near 20 mph (31 km/h), and this
general motion with some decrease in forward speed is expected over
the next day or so. A turn toward the northwest is forecast by
Wednesday, and a northwestward to north-northwestward motion should
continue through Wednesday night. On the forecast track, the center
of Laura will cross western Cuba this evening and move into the
southeastern Gulf of Mexico overnight. Laura is then forecast to
move over the central and northwestern Gulf of Mexico Tuesday night
and Wednesday, and approach the northwestern coast of the Gulf of
Mexico Wednesday night.

Maximum sustained winds are near 60 mph (95 km/h) with higher gusts.
Strengthening is expected when the storm moves over the Gulf of
Mexico, and Laura is foreast to become a hurricane by late Tuesday.
Additional strengthening is forecast on Wednesday.

Tropical-storm-force winds extend outward up to 175 miles (280 km)
primarily to the northeast and east of the center.

The estimated minimum central pressure is 1001 mb (29.56 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Laura can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC.

STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide…

High Island TX to Morgan City LA including Sabine Lake, Calcasieu
Lake, and Vermilion Bay…7-11 ft
Port Bolivar TX to High Island TX…4-6 ft
Morgan City LA to Mouth of the Mississippi River…4-6 ft
Mouth of the Mississippi River to Ocean Springs MS including Lake
Borgne…3-5 ft
San Luis Pass TX to Port Bolivar TX…2-4 ft
Galveston Bay…2-4 ft
Lake Pontchartrain and Lake Maurepas…2-4 ft

The deepest water will occur along the immediate coast near and to
the right of the landfall location, where the surge will be
accompanied by large and destructive waves. Surge-related
flooding depends on the relative timing of the surge and the tidal
cycle, and can vary greatly over short distances. For information
specific to your area, please see products issued by your local
National Weather Service forecast office.

RAINFALL: Laura is expected to produce the following storm total
rainfall accumulations into tonight:

Western Jamaica, Western Cuba and the Cayman Islands: 4 to 6 inches,
with maximum amounts of 10 inches. Across the Greater Antilles this
heavy rainfall could lead to life-threatening flash and urban
flooding, and the potential for mudslides.

From Wednesday afternoon into Saturday, Laura is expected to produce
rainfall of 4 to 8 inches, with isolated maximum amounts of 12
inches across portions of the west-central U.S. Gulf Coast near the
Texas and Louisiana border north into portions of the lower
Mississippi Valley. This rainfall could cause widespread flash and
urban flooding, small streams to overflow their banks, and minor to
isolated moderate river flooding.

WIND: Tropical storm conditions are expected to spread westward
within the warning area in western Cuba through this evening.
Tropical storm conditions are also expected within the warning area
in the middle and lower Florida Keys and the Dry Tortugas tonight.

Hurricane conditions are possible in the hurricane watch area along
the Gulf Coast by late Wednesday, with tropical storm conditions
possible by Wednesday afternoon.

SURF: Swells generated by Laura are affecting portions of Cuba, the
central Bahamas, and the Florida Keys. Swells are expected to
spread northward along portions of the west coast of Florida
peninsula and the coast of the Florida panhandle on Tuesday
and Tuesday night, and reach the northern and northwest Gulf coast
by Wednesday. These swells are likely to cause life-threatening surf
and rip current conditions. Please consult products from your
local weather office.

TORNADOES: An isolated tornado is possible through tonight across
the Florida Keys.

BULLETIN
Tropical Storm Laura Intermediate Advisory Number 19A
NWS National Hurricane Center Miami FL AL132020
200 PM EDT Mon Aug 24 2020

…CENTER OF LAURA PASSING NEAR CAYO LARGO CUBA….
…HEAVY RAINFALL AND FLASH FLOODING CONTINUES OVER THE CAYMAN
ISLANDS AND PORTIONS OF CUBA…

SUMMARY OF 200 PM EDT…1800 UTC…INFORMATION
———————————————-
LOCATION…21.4N 81.6W
ABOUT 15 MI…25 KM S OF CAYO LARGO
ABOUT 80 MI…125 KM E OF THE ISLE OF YOUTH
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…WNW OR 285 DEGREES AT 20 MPH…31 KM/H
MINIMUM CENTRAL PRESSURE…1001 MB…29.56 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* Little Cayman and Cayman Brac
* Cuban provinces of Camaguey, Las Tunas, Ciego De Avila, Sancti
Spiritus, Villa Clara, Cienfuegos, Matanzas, Mayabeque, La Habana,
Artemisa, Pinar del Rio, and the Isle of Youth
* Florida Keys from Craig Key to Key West
* Dry Tortugas

The Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within the
next 12 hours.

Hurricane and Storm Surge Watches will likely be required for
portions of the U.S. northwest Gulf coast area by this evening.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 200 PM EDT (1800 UTC), the center of Tropical Storm Laura was
located near latitude 21.4 North, longitude 81.6 West. Laura is
moving toward the west-northwest near 20 mph (31 km/h), and this
general motion with some decrease in forward speed is expected over
the next day or so. A turn toward the northwest is forecast by
Wednesday, and a northwestward to north-northwestward motion should
continue through Wednesday night. On the forecast track, the center
of Laura will move over the Caribbean Sea just offshore of the
southern coast of Cuba this afternoon, cross western Cuba this
evening, and move into the southeastern Gulf of Mexico overnight.
Laura is then forecast to move over the central and northwestern
Gulf of Mexico Tuesday night and Wednesday, and approach the
northwestern coast of the Gulf of Mexico Wednesday night.

Maximum sustained winds are near 60 mph (95 km/h) with higher
gusts. Little change in strength is forecast today, but
strengthening is expected when the storm moves over the Gulf of
Mexico. Laura is foreast to become a hurricane on Tuesday, with
additional strengthening forecast on Wednesday.

Tropical-storm-force winds extend outward up to 175 miles (280 km)
primarily to the northeast and east of the center. An elevated
observing site at Sand Key located south of Key West, Florida, has
recently reported a wind gust of 41 mph (67 km/h). A wind gust of
47 mph (76 km/h) has been observed at Santa Clara, Cuba, within the
past few hours.

The estimated minimum central pressure based on reconnaissance
aircraft data is 1001 mb (29.56 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Laura can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC.

RAINFALL: Laura is expected to produce the following storm total
rainfall accumulations through today:

Jamaica, Cuba and the Cayman Islands: 4 to 6 inches, with maximum
amounts of 10 inches. Across the Greater Antilles this heavy
rainfall could lead to life-threatening flash and urban flooding,
and the potential for mudslides.

From Wednesday afternoon into Friday, Laura is expected to produce
rainfall of 4 to 8 inches, with isolated maximum amounts of 12
inches across portions of the west-central U.S. Gulf Coast near the
Texas and Louisiana border north into portions of the lower
Mississippi Valley. This rainfall could cause widespread flash and
urban flooding, small streams to overflow their banks, and minor to
isolated moderate river flooding.

WIND: Tropical storm conditions are expected to spread westward
within the warning area in Cuba through today. Tropical storm
conditions are expected in Little Cayman and Cayman Brac today.
Tropical storm conditions are also expected within the warning area
in the middle and lower Florida Keys and the Dry Tortugas this
afternoon and tonight.

SURF: Swells generated by Laura are affecting portions of
Hispaniola, Cuba, the central Bahamas, and the Florida Keys. Swells
are expected to spread northward along portions of the west coast of
Florida peninsula and the coast of the Florida panhandle on Tuesday
and Tuesday night. These swells are likely to cause life-
threatening surf and rip current conditions. Please consult
products from your local weather office.

TORNADOES: An isolated tornado will be possible later today into
tonight across the Florida Keys.

BULLETIN
Tropical Storm Marco Advisory Number 17
NWS National Hurricane Center Miami FL AL142020
1000 AM CDT Mon Aug 24 2020

…MARCO CONTINUES TO PRODUCE HEAVY RAINFALL AND GUSTY
WINDS ALONG PORTIONS OF THE NORTHERN GULF COAST…

SUMMARY OF 1000 AM CDT…1500 UTC…INFORMATION
———————————————–
LOCATION…28.5N 88.5W
ABOUT 55 MI…90 KM SE OF THE MOUTH OF THE MISSISSIPPI RIVER
MAXIMUM SUSTAINED WINDS…50 MPH…85 KM/H
PRESENT MOVEMENT…NNW OR 330 DEGREES AT 8 MPH…13 KM/H
MINIMUM CENTRAL PRESSURE…1006 MB…29.71 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

The Tropical Storm Warning from west of Morgan City to Intracoastal
City, Louisiana, has been discontinued.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for….
* Morgan City Louisiana to Ocean Springs Mississippi
* Lake Borgne

A Tropical Storm Warning is in effect for…
* Morgan City to the Mississippi/Alabama border
* Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans

A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
during the next 36 hours in the indicated locations. For a depiction
of areas at risk, please see the National Weather Service Storm
Surge Watch/Warning Graphic, available at hurricanes.gov. This is a
life-threatening situation. Persons located within these areas
should take all necessary actions to protect life and property from
rising water and the potential for other dangerous conditions.
Promptly follow evacuation and other instructions from local
officials.

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within
the next 6 to 18 hours.

For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.

DISCUSSION AND OUTLOOK
———————-
At 1000 AM CDT (1500 UTC), the center of Tropical Storm Marco was
located near latitude 28.5 North, longitude 88.5 West. Marco is
moving toward the north-northwest near 8 mph (13 km/h). A turn to
the west-northwest is expected to occur by Tuesday, and this
motion should continue until the system dissipates in a couple of
days.

Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Steady weakening is forecast, and Marco is expected to weaken to a
tropical depression tonight, and degenerate to a remnant low on
Tuesday.

Tropical-storm-force winds extend outward up to 105 miles (165 km)
from the center.

The estimated minimum central pressure is 1006 mb (29.71 inches).

HAZARDS AFFECTING LAND
———————-
STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide…

Morgan City LA to Ocean Springs MS, including Lake Borgne…2-4 ft

The deepest water will occur along the immediate coast in areas of
onshore winds, where the surge will be accompanied by large and
dangerous waves. Surge-related flooding depends on the relative
timing of the surge and the tidal cycle, and can vary greatly over
short distances. For information specific to your area, please see
products issued by your local National Weather Service forecast
office.

WIND: Tropical storm conditions are expected to start by this
afternoon in portions of the warning area.

RAINFALL: Marco is expected to produce total rainfall accumulations
of 3 to 6 inches with isolated maximum amounts of 10 inches across
portions of the northeast and north-central Gulf coast through
Tuesday. This rainfall may result in areas of flash, urban and
small stream flooding along the same area.

SURF: Swells generated by Marco are likely to affect portions of
the northern Gulf Coast for the next couple of days. These swells
are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.

TORNADOES: A couple of tornadoes are possible today into tonight
across the Florida Panhandle, southern Georgia, southern Alabama,
and southern Mississippi.

BULLETIN
Tropical Storm Marco Intermediate Advisory Number 16A
NWS National Hurricane Center Miami FL AL142020
700 AM CDT Mon Aug 24 2020

…MARCO PRODUCING HEAVY RAINFALL AND GUSTY WINDS ALONG PORTIONS OF
THE NORTHERN GULF COAST…

SUMMARY OF 700 AM CDT…1200 UTC…INFORMATION
———————————————-
LOCATION…28.1N 88.4W
ABOUT 85 MI…135 KM SSE OF THE MOUTH OF THE MISSISSIPPI RIVER
MAXIMUM SUSTAINED WINDS…50 MPH…80 KM/H
PRESENT MOVEMENT…NW OR 325 DEGREES AT 10 MPH…17 KM/H
MINIMUM CENTRAL PRESSURE…1005 MB…29.68 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for….
* Morgan City Louisiana to Ocean Springs Mississippi
* Lake Borgne

A Tropical Storm Warning is in effect for…
* Intracoastal City to the Mississippi/Alabama border
* Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans

A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
during the next 36 hours in the indicated locations. For a
depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov. This is a life-threatening situation. Persons
located within these areas should take all necessary actions to
protect life and property from rising water and the potential for
other dangerous conditions. Promptly follow evacuation and other
instructions from local officials.

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within 12
to 24 hours.

For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.

DISCUSSION AND OUTLOOK
———————-
At 700 AM CDT (1200 UTC), the center of Tropical Storm Marco was
located near latitude 28.1 North, longitude 88.4 West. Marco is
moving toward the northwest near 10 mph (17 km/h). Marco is
forecast to approach the coast of Louisiana this afternoon, and then
turn westward and move very close to the coast of Louisiana through
Tuesday night.

Data from an Air Force Reserve Hurricane Hunter aircraft indicate
that maximum sustained winds have decreased to near 50 mph (80 km/h)
with higher gusts. Further weakening is expected, and Marco is
forecast to become a tropical depression late on Tuesday and
dissipate on Wednesday.

Tropical-storm-force winds extend outward up to 105 miles (165 km),
primarily northeast of the center.

The estimated minimum central pressure is 1005 mb (29.68 inches).

HAZARDS AFFECTING LAND
———————-
STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide…

Morgan City LA to Ocean Springs MS, including Lake Borgne…2-4 ft

The deepest water will occur along the immediate coast in areas of
onshore winds, where the surge will be accompanied by large and
dangerous waves. Surge-related flooding depends on the relative
timing of the surge and the tidal cycle, and can vary greatly over
short distances. For information specific to your area, please see
products issued by your local National Weather Service forecast
office.

WIND: Tropical storm conditions are expected to start by this
afternoon in portions of the warning area.

RAINFALL: Marco is expected to produce total rainfall accumulations
of 3 to 5 inches with isolated maximum amounts of 10 inches across
portions of the northeast and north-central Gulf coast through
Tuesday. This rainfall may result in areas of flash, urban and
small stream flooding in the area.

SURF: Swells generated by Marco are likely to affect portions of
the northern Gulf Coast for the next couple of days. These swells
are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.

TORNADOES: A couple of tornadoes will be possible today from
southeast Louisiana to the western Florida Panhandle.

BULLETIN
Tropical Storm Laura Intermediate Advisory Number 18A
NWS National Hurricane Center Miami FL AL132020
800 AM EDT Mon Aug 24 2020

…NOAA AND AIR FORCE RECONNAISSANCE AIRCRAFT FIND LAURA MOVING
WEST-NORTHWESTWARD JUST SOUTH OF THE COAST OF CENTRAL CUBA….

SUMMARY OF 800 AM EDT…1200 UTC…INFORMATION
———————————————-
LOCATION…20.9N 79.7W
ABOUT 125 MI…200 KM ESE OF CAYO LARGO
ABOUT 205 MI…330 KM ESE OF THE ISLE OF YOUTH
MAXIMUM SUSTAINED WINDS…65 MPH…100 KM/H
PRESENT MOVEMENT…WNW OR 290 DEGREES AT 21 MPH…33 KM/H
MINIMUM CENTRAL PRESSURE…1000 MB…29.53 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* Little Cayman and Cayman Brac
* Cuban provinces of Camaguey, Las Tunas, Holguin, Guantanamo,
Santiago de Cuba, Granma, Ciego De Avila, Sancti Spiritus, Villa
Clara, Cienfuegos, Matanzas, Mayabeque, La Habana, Artemisa, Pinar
del Rio, and the Isle of Youth
* Florida Keys from Craig Key to Key West
* Dry Tortugas

The Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within the
next 12 to 24 hours.

Hurricane and Storm Surge Watches will likely be required for
portions of the U.S. northwest Gulf coast area by this evening.

For storm information specific to your area in the United States,
including possible inland watches and warnings, please monitor
products issued by your local National Weather Service forecast
office. For storm information specific to your area outside of the
United States, please monitor products issued by your national
meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 800 AM EDT (1200 UTC), the center of Tropical Storm Laura was
located near latitude 20.9 North, longitude 79.7 West. Laura is
moving toward the west-northwest near 21 mph (33 km/h), and this
general motion with some decrease in forward speed is expected over
the next couple of days. A turn toward the northwest is forecast by
Wednesday. On the forecast track, the center of Laura will move
over the Caribbean Sea just offshore the southern coast of Cuba
today, and move into the southeastern Gulf of Mexico by early
Tuesday morning. Laura is then forecast to move over the central and
northwestern Gulf of Mexico Tuesday night and Wednesday.

Maximum sustained winds are near 65 mph (100 km/h) with higher
gusts. Gradual strengthening is expected, and Laura is forecast to
become a hurricane by early Tuesday.

Tropical-storm-force winds extend outward up to 175 miles (280 km)
from the center.

The estimated minimum central pressure is 1000 mb (29.53 inches).

HAZARDS AFFECTING LAND
———————-
RAINFALL: Laura is expected to produce the following storm total
rainfall accumulations through Tuesday:

Jamaica and Cuba: 4 to 8 inches, with maximum amounts of 12 inches.

Cayman Islands: 2 to 4 inches, maximum amounts of 6 inches.

Florida Keys, Turks and Caicos Islands, and the Northwest Bahamas:
1 to 2 inches.

Across the Greater Antilles this heavy rainfall could lead to
life-threatening flash and urban flooding, and the potential for
mudslides.

From late Wednesday into Friday, Laura is expected to produce
rainfall of 5 to 10 inches, with isolated maximum amounts of 15
inches across portions of the west-central U.S. Gulf Coast near the
Texas and Louisiana border north into portions of the lower
Mississippi Valley. This rainfall could cause widespread flash and
urban flooding, small streams to overflow their banks, and the
possibility of some minor river flooding across this region.

WIND: Tropical storm conditions are expected to spread westward
within the warning area in Cuba through today. Tropical storm
conditions are expected in Little Cayman and Cayman Brac today.
Tropical storm conditions are also expected within the warning area
in the middle and lower Florida Keys and the Dry Tortugas this
afternoon and tonight.

SURF: Swells generated by Laura are affecting portions of
Hispaniola, eastern Cuba, the southeastern Bahamas and the
Turks and Caicos Islands. These swells are expected to spread
across central and western Cuba, the central and northwestern
Bahamas, and the Florida Keys today. Please consult products
from your local weather office.

TORNADOES: An isolated tornado will be possible later today into
tonight across the Florida Keys.

BULLETIN
Hurricane Marco Intermediate Advisory Number 14A
NWS National Hurricane Center Miami FL AL142020
700 PM CDT Sun Aug 23 2020

…MARCO EXPECTED TO MOVE NEAR THE LOUISIANA COAST ON MONDAY…

SUMMARY OF 700 PM CDT…0000 UTC…INFORMATION
———————————————-
LOCATION…26.4N 87.6W
ABOUT 180 MI…290 KM SSE OF THE MOUTH OF THE MISSISSIPPI RIVER
MAXIMUM SUSTAINED WINDS…75 MPH…120 KM/H
PRESENT MOVEMENT…NNW OR 340 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…991 MB…29.27 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for….
* Morgan City Louisiana to Ocean Springs Mississippi
* Lake Borgne

A Hurricane Warning is in effect for…
* Morgan City Louisiana to the Mouth of the Pearl River

A Storm Surge Watch is in effect for…
* Sabine Pass to Morgan City Louisiana
* Ocean Springs Mississippi to the Mississippi/Alabama border
* Lake Pontchartrain and Lake Maurepas

A Hurricane Watch is in effect for…
* Intracoastal City to west of Morgan City
* Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans

A Tropical Storm Warning is in effect for…
* Mouth of the Pearl River to the Mississippi/Alabama border
* Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans
* Cameron to west of Morgan City

A Tropical Storm Watch is in effect for…
* Mississippi/Alabama border to the Alabama/Florida border

A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
during the next 36 hours in the indicated locations. For a
depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov. This is a life-threatening situation. Persons
located within these areas should take all necessary actions to
protect life and property from rising water and the potential for
other dangerous conditions. Promptly follow evacuation and other
instructions from local officials.

A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. A warning is typically issued
36 hours before the anticipated first occurrence of
tropical-storm-force winds, conditions that make outside
preparations difficult or dangerous. Preparations to protect life
and property should be rushed to completion.

A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations during the next 48 hours.
For a depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov.

A Hurricane Watch means that hurricane conditions are possible
within the watch area.

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 700 PM CDT (0000 UTC), the center of Hurricane Marco was located
by an Air Force Reserve Hurricane Hunter Aircraft near latitude 26.4
North, longitude 87.6 West. Marco is moving toward the
north-northwest near 13 mph (20 km/h). Marco is forecast to move
generally north-northwestward to northwestward tonight and approach
the Louisiana coast Monday afternoon. It is then forecast to turn
westward and move near or over the coast through Tuesday.

Maximum sustained winds are near 75 mph (120 km/h) with higher
gusts. Small fluctuations in strength are possible tonight. Gradual
weakening is expected to begin on Monday, and Marco could become a
remnant low by Tuesday night.

Hurricane-force winds extend outward up to 15 miles (30 km) from
the center and tropical-storm-force winds extend outward up to 105
miles (165 km).

The estimated minimum central pressure is 991 mb (29.27 inches).

HAZARDS AFFECTING LAND
———————-
STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide…

Morgan City LA to Mouth of the Mississippi River…4-6 ft
Mouth of the Mississippi River to Ocean Springs MS including Lake
Borgne…3-5 ft
Lake Pontchartrain and Lake Maurepas…2-4 ft
Intracoastal City LA to Morgan City LA…2-4 ft
Sabine Pass to Intracoastal City…1-3 ft
Ocean Springs MS to the AL/FL Border including Mobile Bay…1-3 ft

The deepest water will occur along the immediate coast in areas of
onshore winds, where the surge will be accompanied by large and
dangerous waves. Surge-related flooding depends on the relative
timing of the surge and the tidal cycle, and can vary greatly over
short distances. For information specific to your area, please see
products issued by your local National Weather Service forecast
office.

WIND: Hurricane conditions are expected within the hurricane
warning area by midday Monday, with tropical storm conditions
possible by early Monday. Tropical storm conditions are possible
within the tropical storm watch area on Monday, and hurricane
conditions are possible within the hurricane watch areas late
Monday.

RAINFALL: Marco is expected to produce total rainfall accumulations
of 3 to 5 inches with isolated maximum amounts of 7 inches across
the Central U.S. Gulf coast through Tuesday.

This rainfall may result in scattered areas of flash and urban
flooding along the Central U.S. Gulf Coast.

SURF: Swells generated by Marco are likely to affect portions of
the northern Gulf Coast for the next couple of days. These swells
are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.

TORNADOES: An isolated tornado is possible early Monday morning
near the southeast Louisiana coast. Isolated tornadoes are possible
across southeast Louisiana, southern Mississippi, southern Alabama,
and the Florida Panhandle Monday and Monday night.
The

BULLETIN
Tropical Storm Laura Intermediate Advisory Number 16A
NWS National Hurricane Center Miami FL AL132020
800 PM EDT Sun Aug 23 2020

…LAURA NOW LOCATED OVER EASTERN CUBA…
…HEAVY RAINS OCCURRING OVER EASTERN CUBA, HAITI, AND JAMAICA….

SUMMARY OF 800 PM EDT…0000 UTC…INFORMATION
———————————————-
LOCATION…20.0N 75.6W
ABOUT 30 MI…55 KM W OF GUANTANAMO CUBA
ABOUT 175 MI…280 KM ESE OF CAMAGUEY CUBA
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…WNW OR 285 DEGREES AT 21 MPH…33 KM/H
MINIMUM CENTRAL PRESSURE…1000 MB…29.53 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

The government of the Bahamas has discontinued the Tropical Storm
Warning for Inagua and the Ragged Islands in the southeastern
Bahamas.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* Entire coast of the Haiti
* Little Cayman and Cayman Brac
* Cuban provinces of Camaguey, Las Tunas, Holguin, Guantanamo,
Santiago de Cuba, Granma, Ciego De Avila, Sancti Spiritus, Villa
Clara, Cienfuegos, Matanzas, Mayabeque, La Habana, Artemisa, Pinar
del Rio, and the Isle of Youth

A Tropical Storm Watch is in effect for…
* Florida Keys from Craig Key to Key West and the Dry Tortugas

The Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within the
next 12 to 24 hours.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, in this case within the next 24
hours.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 800 PM EDT (0000 UTC), the center of Tropical Storm Laura was
located near latitude 20.0 North, longitude 75.6 West. Laura is
moving toward the west-northwest near 21 mph (33 km/h), and this
general motion with some decrease in forward speed is expected over
the next couple of days. A turn toward the northwest is forecast by
Wednesday. On the forecast track, the center of Laura will move
near or over the southern coast Cuba tonight and Monday, and move
over the southeastern Gulf of Mexico Monday night and Tuesday. Laura
is expected to move over the central and northwestern Gulf of Mexico
Tuesday night and Wednesday.

The maximum sustained winds are near 60 mph (95 km/h) with higher
gusts. Little change in strength is forecast while Laura moves near
the southern coast of Cuba tonight and Monday. However,
strengthening is forecast after the storm moves over the Gulf of
Mexico, and Laura is forecast to become a hurricane late Tuesday or
Tuesday night.

Tropical-storm-force winds extend outward up to 140 miles (220 km)
from the center. An observation in Guantanamo Bay, Cuba, recently
measured sustained winds of 35 mph (56 km/h) and a wind gust to 44
mph (71 km/h).

The minimum central pressure based on surface observations is 1000
mb (29.53 inches).

HAZARDS AFFECTING LAND
———————-
RAINFALL: Laura is expected to produce the following storm total
rainfall accumulations through Tuesday:

Dominican Republic, Haiti, Jamaica, and Cuba: 4 to 8 inches, with
maximum amounts of 12 inches.

Cayman Islands: 2 to 4 inches, maximum amounts of 6 inches.

Florida Keys, Turks and Caicos and southeast Bahamas: 1 to 2 inches.

Across the Greater Antilles this heavy rainfall could lead to
life-threatening flash and urban flooding, and the potential for
mudslides.

By later Wednesday into Friday Laura is expected to produce rainfall
of 5 to 10 inches, with isolated maximum amounts of 15 inches across
portions of the west-central U.S. Gulf Coast near the Texas and
Louisiana border north into portions of the lower Mississippi
Valley. This rainfall could lead to flash, urban, and small stream
flooding.

WIND: Tropical storm conditions are expected within portions of the
warning area in Haiti through this evening. Tropical storm
conditions are expected within portions of the warning area in Cuba
later tonight through Monday. Tropical storm conditions are
expected in Little Cayman and Cayman Brac on Monday. Tropical storm
conditions are possible within portions of the watch area in the
Florida Keys Monday.

SURF: Swells generated by Laura are affecting portions of
Hispaniola, eastern Cuba, the southeastern Bahamas and the
Turks and Caicos Islands. These swells are expected to spread
across central and western Cuba, the central and northwestern
Bahamas, and the Florida Keys on Monday. Please consult products
from your local weather office.

TORNADOES: An isolated tornado is possible across far southern
Florida on Monday.

BULLETIN
Hurricane Marco Advisory Number 14
NWS National Hurricane Center Miami FL AL142020
400 PM CDT Sun Aug 23 2020

…MARCO EXPECTED TO BRING LIFE-THREATENING STORM SURGE AND
HURRICANE-FORCE WINDS ALONG PORTIONS OF THE U.S. GULF COAST
MONDAY…

SUMMARY OF 400 PM CDT…2100 UTC…INFORMATION
———————————————-
LOCATION…25.8N 87.8W
ABOUT 240 MI…390 KM SSE OF THE MOUTH OF THE MISSISSIPPI RIVER
ABOUT 395 MI…640 KM SE OF LAFAYETTE LOUISIANA
MAXIMUM SUSTAINED WINDS…75 MPH…120 KM/H
PRESENT MOVEMENT…NNW OR 340 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…991 MB…29.27 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

A Tropical Storm Warning has been issued from Cameron to
west of Morgan City, Louisiana.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for….
* Morgan City Louisiana to Ocean Springs Mississippi
* Lake Borgne

A Hurricane Warning is in effect for…
* Morgan City Louisiana to the Mouth of the Pearl River

A Storm Surge Watch is in effect for…
* Sabine Pass to Morgan City Louisiana
* Ocean Springs Mississippi to the Mississippi/Alabama border
* Lake Pontchartrain and Lake Maurepas

A Hurricane Watch is in effect for…
* Intracoastal City to west of Morgan City
* Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans

A Tropical Storm Warning is in effect for…
* Mouth of the Pearl River to the Mississippi/Alabama border
* Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans
* Cameron to west of Morgan City

A Tropical Storm Watch is in effect for…
* Mississippi/Alabama border to the Alabama/Florida border

A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
during the next 36 hours in the indicated locations. For a
depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov. This is a life-threatening situation. Persons
located within these areas should take all necessary actions to
protect life and property from rising water and the potential for
other dangerous conditions. Promptly follow evacuation and other
instructions from local officials.

A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. A warning is typically issued
36 hours before the anticipated first occurrence of
tropical-storm-force winds, conditions that make outside
preparations difficult or dangerous. Preparations to protect life
and property should be rushed to completion.

A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations during the next 48 hours.
For a depiction of areas at risk, please see the National Weather
Service Storm Surge Watch/Warning Graphic, available at
hurricanes.gov.

A Hurricane Watch means that hurricane conditions are possible
within the watch area.

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.

For storm information specific to your area in the United
States, including possible inland watches and warnings, please
monitor products issued by your local National Weather Service
forecast office. For storm information specific to your area
outside of the United States, please monitor products issued by
your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 400 PM CDT (2100 UTC), the center of Hurricane Marco was located
near latitude 25.8 North, longitude 87.8 West. Marco is moving
toward the north-northwest near 13 mph (20 km/h), a turn to the
northwest is expected later tonight followed by a turn to the
west-northwest by Monday night. On the forecast track, Marco will
be near the Louisiana coast Monday afternoon, and move near or
over the coast through Tuesday.

Maximum sustained winds are near 75 mph (120 km/h) with higher
gusts. Little change is strength is expected over the next 24 h.
Gradual weakening is expected thereafter, and Marco could become a
remnant low by Tuesday night.

Hurricane-force winds extend outward up to 15 miles (30 km) from the
center and tropical-storm-force winds extend outward up to 105 miles
(165 km).

The estimated minimum central pressure is 991 mb (29.27 inches).

HAZARDS AFFECTING LAND
———————-
STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide…

Morgan City LA to Mouth of the Mississippi River…4-6 ft
Mouth of the Mississippi River to Ocean Springs MS including Lake
Borgne…3-5 ft
Lake Pontchartrain and Lake Maurepas…2-4 ft
Intracoastal City LA to Morgan City LA…2-4 ft
Sabine Pass to Intracoastal City…1-3 ft
Ocean Springs MS to the AL/FL Border including Mobile Bay…1-3 ft

The deepest water will occur along the immediate coast in areas of
onshore winds, where the surge will be accompanied by large and
dangerous waves. Surge-related flooding depends on the relative
timing of the surge and the tidal cycle, and can vary greatly over
short distances. For information specific to your area, please see
products issued by your local National Weather Service forecast
office.

WIND: Hurricane conditions are expected within the hurricane
warning area by midday Monday, with tropical storm conditions
possible by early Monday. Tropical storm conditions are possible
within the tropical storm watch area on Monday, and hurricane
conditions are possible within the hurricane watch areas late
Monday.

RAINFALL: Marco is expected to produce total rainfall accumulations
of 3 to 5 inches with isolated maximum amounts of 7 inches across
the Central U.S. Gulf coast through Tuesday.

This rainfall may result in scattered areas of flash and urban
flooding along the Central U.S. Gulf Coast.

SURF: Swells generated by Marco are likely to affect portions of
the northern Gulf Coast for the next couple of days. These swells
are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.

TORNADOES: An isolated tornado is possible early Monday morning
near the southeast Louisiana coast. Isolated tornadoes are possible
across southeast Louisiana, southern Mississippi, southern Alabama,
and the Florida Panhandle Monday and Monday night.