BULLETIN
Potential Tropical Cyclone Twenty-Six Advisory Number 1
NWS National Hurricane Center Miami FL AL262020
500 PM EDT Sun Oct 04 2020

…DISTURBANCE OVER THE CENTRAL CARIBBEAN EXPECTED TO BECOME A
TROPICAL STORM AND STRENGTHEN FURTHER OVER THE NORTHWEST CARIBBEAN
SEA…
…WARNINGS AND WATCHES ISSUED FOR THE CAYMAN ISLANDS AND WESTERN
CUBA…

SUMMARY OF 500 PM EDT…2100 UTC…INFORMATION
———————————————-
LOCATION…16.7N 76.6W
ABOUT 90 MI…145 KM S OF KINGSTON JAMAICA
ABOUT 350 MI…565 KM ESE OF GRAND CAYMAN
MAXIMUM SUSTAINED WINDS…35 MPH…55 KM/H
PRESENT MOVEMENT…WNW OR 290 DEGREES AT 10 MPH…17 KM/H
MINIMUM CENTRAL PRESSURE…1007 MB…29.74 INCHES

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

The government of the Cayman Islands has issued a Tropical Storm
Warning for the Cayman Islands, including Little Cayman and Cayman
Brac.

The government of Cuba has issued a Hurricane Watch for the Isle of
Youth and the Cuba provinces of Pinar del Rio and Artemisa. A
Tropical Storm Watch has been issued for the Cuban province of La
Habana.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Watch is in effect for…
* Cuban provinces of Pinar del Rio and Artemisa
* Isle of Youth

A Tropical Storm Warning is in effect for…
* Cayman Islands including Little Cayman and Cayman Brac

A Tropical Storm Watch is in effect for…
* Cuba province of La Habana

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 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, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 500 PM EDT (2100 UTC), the disturbance was centered near latitude
16.7 North, longitude 76.6 West. The system is moving toward the
west-northwest near 10 mph (17 km/h). A west-northwestward to
northwestward motion at a slightly faster forward speed is expected
over the next few days. On the forecast track, the center of the
disturbance is expected to pass near or just southwest of Jamaica
tonight and early Monday, move near or over the Cayman Islands
Monday night, and approach the Isle of Youth and western Cuba
Tuesday afternoon or evening. The system is forecast to move into
the southeastern Gulf of Mexico Tuesday night or early Wednesday.

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts.
Strengthening is expected during the next 2 to 3 days and the
system is forecast to be a tropical storm when it nears the Cayman
Islands, and a hurricane when it moves near or over western Cuba.

Conditions are conducive for development and the system is forecast
to become a tropical depression or storm tonight or early Monday.
* Formation chance through 48 hours…high…80 percent
* Formation chance through 5 days…high…80 percent

The estimated minimum central pressure is 1007 mb (29.74 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Potential Tropical Cyclone Twenty-Six can be found
in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1,
WMO header WTNT41 KNHC, and on the web at
www.hurricanes.gov/text/MIATCDAT1.shtml.

STORM SURGE: A dangerous storm surge will raise water levels by
as much as 3 to 5 feet above normal tide levels along the immediate
coast of the Isle of Youth and along the south coast of western
Cuba near and to right of where the center makes landfall. Near the
coast, the surge will be accompanied by large and dangerous waves.

RAINFALL: Through midweek, this system has the potential to produce
3 to 5 inches of rain with isolated maximum totals of 8 inches
across Jamaica, southern Haiti, and western Cuba. This rainfall
could lead to life-threatening flash floods and mudslides. Over
the Cayman Islands, 2 to 4 inches of rainfall will be possible with
this system.

WIND: Tropical storm conditions are expected in the Cayman Islands
beginning late Monday. Hurricane conditions are possible within
the Hurricane Watch area by Tuesday afternoon, with tropical storm
conditions possible by early Tuesday. Tropical Storm conditions
are possible in the Tropical Storm Watch area in Cuba by early
Tuesday.

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 PM EDT Sun Oct 4 2020

For the North Atlantic…Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Tropical
Storm Gamma, located just north of the Yucatan Peninsula over the
extreme southern Gulf of Mexico.

1. A broad area of low pressure is located over the central Caribbean
Sea, a little less than 100 miles south-southeast of eastern
Jamaica. Recent satellite wind data and visible satellite imagery
indicate that the circulation is gradually becoming better defined,
however, the associated shower and thunderstorm activity has
changed little in organization since this morning. Environmental
conditions are expected to be conducive for additional development,
and a tropical depression is likely to form within the next day or
so, while the system moves over the central and northwestern
Caribbean Sea. The disturbance is forecast to move near Jamaica
through Monday, and then pass near the Cayman Islands early Tuesday
and approach western Cuba by late Tuesday, and interests in those
areas should closely monitor the progress of this system. The low
is forecast to move into the southern or southeastern Gulf of
Mexico Tuesday night or Wednesday. Regardless of development,
locally heavy rainfall and gusty winds will be possible across
portions of Hispaniola, Jamaica, the Cayman Islands, and Cuba
during the next few days. This rainfall could lead to
life-threatening flash floods and mudslides.
* Formation chance through 48 hours…high…80 percent.
* Formation chance through 5 days…high…80 percent.

2. Showers and thunderstorms associated with a tropical wave over the
central tropical Atlantic have become limited today. The system is
moving into an area of strong upper-level winds and development of
this system is not anticipated.
* Formation chance through 48 hours…low…near 0 percent.
* Formation chance through 5 days…low…near 0 percent.

3. An area of disorganized showers and thunderstorms over the central
Atlantic about 1000 miles east-southeast of Bermuda is associated
with a surface trough of low pressure. This system is expected to
move toward the west-southwest at around 10 mph, and some slow
development is possible during the next couple of days before it
encounters strong upper-level winds.
* Formation chance through 48 hours…low…10 percent.
* Formation chance through 5 days…low…10 percent.

BULLETIN
Tropical Storm Gamma Intermediate Advisory Number 9A
NWS National Hurricane Center Miami FL AL252020
100 PM CDT Sun Oct 04 2020

…GAMMA MEANDERING JUST NORTH OF THE NORTHERN COAST OF THE YUCATAN
PENINSULA…

SUMMARY OF 100 PM CDT…1800 UTC…INFORMATION
———————————————-
LOCATION…22.4N 88.0W
ABOUT 60 MI…90 KM NNE OF RIO LAGARTOS MEXICO
ABOUT 120 MI…190 KM NE OF PROGRESO MEXICO
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…N OR 005 DEGREES AT 2 MPH…4 KM/H
MINIMUM CENTRAL PRESSURE…997 MB…29.44 INCHES

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

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* North and west of Cancun to Dzilam Mexico

A Tropical Storm Watch is in effect for…
* West of Dzilam to Progreso Mexico

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

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

For storm information specific to your area, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 100 PM CDT (1800 UTC), the center of Tropical Storm Gamma was
located near latitude 22.4 North, longitude 88.0 West. Gamma is
moving toward the north near 2 mph (4 km/h), and this general motion
with a further decrease in forward speed is expected today. Gamma
should turn toward the west or west-southwest tonight or Monday, and
a slow southwestward motion should continue Monday night through
early Wednesday. On the forecast track, the center of Gamma will
meander offshore of the northern Yucatan Peninsula and over the
extreme southern Gulf of Mexico today, and pass near or just
offshore of the northern coast of the Yucatan Peninsula on Monday
and Tuesday.

Maximum sustained winds are near 60 mph (95 km/h) with higher
gusts. Little change in strength is expected through this evening.
Gradual weakening is anticipated to begin later tonight or on Monday
and continue into Tuesday.

Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.

The estimated minimum central pressure based on data from an Air
Force Reserve reconnaissance aircraft is 997 mb (29.44 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.

RAINFALL: Gamma is expected to produce an additional 2 to 4 inches
with isolated maximum amounts of 6 inches across portions of
northern Yucatan and far western Cuba through early Tuesday. This
rainfall may prolong or enhance any ongoing flash flooding.

Through the middle of the week, a separate area of significant rain
is possible in the Mexican states of Campeche, Tabasco, and
southeast Veracruz, with rainfall of 4 to 6 inches and isolated
maximum amounts of 8 inches. This rainfall may produce
life-threatening flash floods and mudslides. Another remote area of
heavy rain associated with Gamma is expected to bring additional
accumulations of 1 to 3 inches and isolated maximum amounts of 5
inches in southern Guatemala towards the Gulf of Fonseca region
between eastern El Salvador, southern Honduras, and northwest
Nicaragua.

WIND: Tropical storm conditions should continue within portions
of the Tropical Storm Warning area on northern coast of the Yucatan
through today. Tropical Storm conditions are possible within the
Tropical Storm Watch area later today through Monday.

BULLETIN
Tropical Storm Gamma Advisory Number 9
NWS National Hurricane Center Miami FL AL252020
1000 AM CDT Sun Oct 04 2020

…GAMMA FORECAST TO MEANDER JUST NORTH OF THE NORTHERN COAST OF
THE YUCATAN PENINSULA OVER THE NEXT DAY OR SO…

SUMMARY OF 1000 AM CDT…1500 UTC…INFORMATION
———————————————–
LOCATION…22.2N 88.2W
ABOUT 40 MI…65 KM N OF RIO LAGARTOS MEXICO
ABOUT 115 MI…185 KM ENE OF PROGRESO MEXICO
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…N OR 360 DEGREES AT 2 MPH…4 KM/H
MINIMUM CENTRAL PRESSURE…996 MB…29.42 INCHES

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

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* North and west of Cancun to Dzilam Mexico

A Tropical Storm Watch is in effect for…
* West of Dzilam to Progreso Mexico

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

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

For storm information specific to your area, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 1000 AM CDT (1500 UTC), the center of Tropical Storm Gamma was
located near latitude 22.2 North, longitude 88.2 West. Gamma is
moving toward the north near 2 mph (4 km/h), and this general motion
with a further decrease in forward speed is expected today. Gamma
should turn toward the west or west-southwest tonight or Monday,
and a slow southwestward motion should continue Monday night
through early Wednesday. On the forecast track, the center of
Gamma will meander offshore of the northern Yucatan Peninsula and
over the extreme southern Gulf of Mexico today, and pass near or
just offshore of the northern coast of the Yucatan Peninsula on
Monday and Tuesday.

Data from an Air Force Reserve reconnaissance aircraft indicate that
the maximum sustained winds are near 60 mph (95 km/h) with higher
gusts. Little change in strength is expected through this evening.
Gradual weakening is anticipated to begin later tonight or on
Monday and continue into Tuesday.

Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.

The latest minimum central pressure reported by Air Force Reserve
reconnaissance aircraft is 996 mb (29.42 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.

RAINFALL: Gamma is expected to produce an additional 2 to 4 inches
with isolated maximum amounts of 6 inches across portions of
northern Yucatan and far western Cuba through early Tuesday. This
rainfall may prolong or enhance any ongoing flash flooding.

Through the middle of the week, a separate area of significant rain
is possible in the Mexican states of Campeche, Tabasco, and
southeast Veracruz, with rainfall of 4 to 6 inches and isolated
maximum amounts of 8 inches. This rainfall may produce
life-threatening flash floods and mudslides. Another remote area of
heavy rain associated with Gamma is expected to bring additional
accumulations of 1 to 3 inches and isolated maximum amounts of 5
inches in southern Guatemala towards the Gulf of Fonseca region
between eastern El Salvador, southern Honduras, and northwest
Nicaragua.

WIND: Tropical storm conditions should continue within portions
of the Tropical Storm Warning area on northern coast of the Yucatan
through today. Tropical Storm conditions are possible within the
Tropical Storm Watch area later today through Monday.

BULLETIN
Tropical Storm Gamma Intermediate Advisory Number 8A
NWS National Hurricane Center Miami FL AL252020
700 AM CDT Sun Oct 04 2020

…AIR FORCE RECONNAISSANCE AIRCRAFT INVESTIGATING GAMMA OVER THE
EXTREME SOUTHERN GULF OF MEXICO…

SUMMARY OF 700 AM CDT…1200 UTC…INFORMATION
———————————————-
LOCATION…22.1N 88.2W
ABOUT 110 MI…175 KM ENE OF PROGRESO MEXICO
ABOUT 35 MI…55 KM N OF RIO LAGARTOS MEXICO
MAXIMUM SUSTAINED WINDS…50 MPH…85 KM/H
PRESENT MOVEMENT…N OR 355 DEGREES AT 4 MPH…6 KM/H
MINIMUM CENTRAL PRESSURE…995 MB…29.39 INCHES

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

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* North and west of Cancun to Dzilam Mexico

A Tropical Storm Watch is in effect for…
* West of Dzilam to Progreso Mexico

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

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

For storm information specific to your area, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 700 AM CDT (1200 UTC), an Air Force Reserve Hurricane Hunter
aircraft has located the center of Tropical Storm Gamma near
latitude 22.1 North, longitude 88.2 West. Gamma is moving toward the
north near 4 mph (6 km/h), and this general motion with a further
decrease in forward speed is forecast today. Gamma should turn
toward the west or west-southwest tonight or Monday. On the forecast
track, the center of Gamma will meander offshore of the northern
Yucatan Peninsula and over the extreme southern Gulf of Mexico
today, and pass near or just offshore of the northern coast of the
Yucatan Peninsula on Monday and Tuesday.

Maximum sustained winds are near 50 mph (85 km/h) with higher
gusts. Some re-strengthening is expected today, followed by
weakening tonight or Monday, which should continue into Wednesday.

Tropical-storm-force winds extend outward up to 115 miles (185 km),
mainly north and east of the center.

The minimum central pressure estimated from reconnaissance aircraft
data is 995 mb (29.39 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.

RAINFALL: Gamma is expected to produce an additional 2 to 4 inches
with isolated maximum amounts of 6 inches across portions of
northern Yucatan and far western Cuba through early Tuesday. This
rainfall may prolong or enhance any ongoing flash flooding.

Through the middle of the week, a separate area of significant rain
is possible in the Mexican states of Campeche, Tabasco, northern
Chiapas, and southeast Veracruz, with rainfall of 6 to 8 inches and
isolated maximum amounts of 12 inches. This rainfall may produce
life-threatening flash floods and mudslides. Another area of heavy
rain will impact southern Guatemala towards the Gulf of Fonseca
region between eastern El Salvador, southern Honduras, and northwest
Nicaragua, with accumulations of 4 to 6 inches and isolated maximum
amounts of 8 inches.

WIND: Tropical storm conditions should continue within the Tropical
Storm Warning area on northern coast of the Yucatan through today.
Tropical Storm conditions are possible within the Tropical Storm
Watch area on Monday.

BULLETIN
Tropical Storm Gamma Intermediate Advisory Number 6A
NWS National Hurricane Center Miami FL AL252020
700 PM CDT Sat Oct 03 2020

…GAMMA INLAND OVER THE YUCATAN PENINSULA PRODUCING HEAVY
RAINFALL…

SUMMARY OF 700 PM CDT…0000 UTC…INFORMATION
———————————————-
LOCATION…21.0N 87.9W
ABOUT 60 MI…100 KM NNW OF TULUM MEXICO
MAXIMUM SUSTAINED WINDS…60 MPH…95 KM/H
PRESENT MOVEMENT…NW OR 325 DEGREES AT 8 MPH…13 KM/H
MINIMUM CENTRAL PRESSURE…990 MB…29.23 INCHES

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

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* North and west of Punta Allen to Dzilam Mexico, including Cozumel

A Tropical Storm Watch is in effect for…
* West of Dzilam to Progreso Mexico

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.

For storm information specific to your area, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 700 PM CDT (0000 UTC), the center of Tropical Storm Gamma was
located inland near latitude 21.0 North, longitude 87.9 West. Gamma
is moving toward the northwest near 8 mph (13 km/h), and a turn
toward the north-northwest with decreasing forward speed is expected
tonight and Sunday, followed by a turn to the west or west-southwest
Sunday night or Monday. On the forecast track, the center of Gamma
will continue to move over the northeastern Yucatan Peninsula
through tonight, move into the southern Gulf of Mexico on Sunday,
and pass near or north of the northern coast of the Yucatan
Peninsula Sunday night and Monday.

Maximum sustained winds have decreased to near 60 mph (95 km/h)
with higher gusts. Additional weakening is forecast tonight and
Sunday, followed by some re-intensification by Monday.

Tropical-storm-force winds extend outward up to 80 miles (130 km)
from the center.

The estimated minimum central pressure is 990 mb (29.23 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.

RAINFALL: Gamma is expected to produce rainfall of 4 to 8 inches
across portions of the Yucatan Peninsula and far western Cuba, with
maximum rainfall amounts as high as 10 to 15 inches possible across
northeastern Quintana Roo and northern Yucatan. This rainfall may
produce life-threatening flash floods.

A separate area of significant rain is possible in the Mexican
states of Campeche, Tabasco, northern Chiapas, and southeast
Veracruz, with rainfall of 6 to 8 inches and isolated maximum
amounts of 12 inches. This rainfall may produce life-threatening
flash floods and mudslides. The storm will also result in an area of
heavy rains to the south that will affect the Gulf of Fonseca
region between eastern El Salvador, southern Honduras, and
northwest Nicaragua with accumulation of 4 to 6 inches and isolated
maximum amounts of 8 inches.

Rainfall of 1 to 3 inches with maximum amounts of 5 inches is
expected over the Cayman Islands.

WIND: Tropical storm conditions should continue within the Tropical
Storm Warning area on the east coast of the Yucatan Peninsula for
the next few hours, and these conditions should spread across
the remainder of the warning area through Sunday. Tropical Storm
conditions are possible within the Tropical Storm Watch area on
Monday.

BULLETIN
Tropical Storm Gamma Advisory Number 6
NWS National Hurricane Center Miami FL AL252020
400 PM CDT Sat Oct 03 2020

…GAMMA MOVING OVER THE NORTHEASTERN YUCATAN PENINSULA…

SUMMARY OF 400 PM CDT…2100 UTC…INFORMATION
———————————————-
LOCATION…20.7N 87.7W
ABOUT 35 MI…60 KM NNW OF TULUM MEXICO
MAXIMUM SUSTAINED WINDS…65 MPH…100 KM/H
PRESENT MOVEMENT…NW OR 325 DEGREES AT 8 MPH…13 KM/H
MINIMUM CENTRAL PRESSURE…985 MB…29.09 INCHES

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

The government of Mexico has changed the Hurricane Warning to a
Tropical Storm Warning north of Punta Allen to Cancun Mexico,
including Cozumel, and discontinued all watches and warnings from
Punta Allen southward.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* North and west of Punta Allen to Dzilam Mexico, including Cozumel

A Tropical Storm Watch is in effect for…
* West of Dzilam to Progreso Mexico

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.

For storm information specific to your area, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 400 PM CDT (2100 UTC), the center of Tropical Storm Gamma was
located near latitude 20.7 North, longitude 87.7 West. Gamma is
moving toward the northwest near 8 mph (13 km/h), and a turn toward
the north-northwest with decreasing forward speed is expected
tonight and Sunday, followed by a turn to the west or west-southwest
Sunday night or Monday. On the forecast track, the center of Gamma
will continue to move over the northeastern Yucatan Peninsula
through tonight, move into the southern Gulf of Mexico on Sunday,
and pass near or north of the northern coast of the Yucatan
Peninsula Sunday night and Monday.

Maximum sustained winds have decreased to near 65 mph (100 km/h)
with higher gusts. Additional weakening is forecast tonight and
Sunday, followed by some re-intensification by Monday.

Tropical-storm-force winds extend outward up to 80 miles (130 km)
from the center.

The estimated minimum central pressure is 985 mb (29.09 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.

RAINFALL: Gamma is expected to produce rainfall of 4 to 8 inches
across portions of the Yucatan Peninsula and far western Cuba, with
maximum rainfall amounts as high as 10 to 15 inches possible across
northeastern Quintana Roo and northern Yucatan. This rainfall may
produce life-threatening flash floods.

A separate area of significant rain is possible in the Mexican
states of Campeche, Tabasco, northern Chiapas, and southeast
Veracruz, with rainfall of 6 to 8 inches and isolated maximum
amounts of 12 inches. This rainfall may produce life-threatening
flash floods and mudslides. The storm will also result in an area of
heavy rains to the south that will affect the Gulf of Fonseca
region between eastern El Salvador, southern Honduras, and
northwest Nicaragua with accumulation of 4 to 6 inches and isolated
maximum amounts of 8 inches.

Rainfall of 1 to 3 inches with maximum amounts of 5 inches is
expected over the Cayman Islands.

WIND: Tropical storm conditions should continue within the Tropical
Storm Warning area on the east coast of the Yucatan Peninsula for
the next several hours, and these conditions should spread across
the remainder of the warning area through Sunday. Tropical Storm
conditions are possible within the Tropical Storm Watch area on
Monday.

BULLETIN
Tropical Storm Gamma Intermediate Advisory Number 5A
NWS National Hurricane Center Miami FL AL252020
100 PM CDT Sat Oct 03 2020

…GAMMA MOVING INLAND OVER THE NORTHEASTERN YUCATAN PENINSULA…

SUMMARY OF 100 PM CDT…1800 UTC…INFORMATION
———————————————-
LOCATION…20.4N 87.6W
ABOUT 15 MI…25 KM NNW OF TULUM MEXICO
MAXIMUM SUSTAINED WINDS…70 MPH…110 KM/H
PRESENT MOVEMENT…NW OR 320 DEGREES AT 9 MPH…15 KM/H
MINIMUM CENTRAL PRESSURE…980 MB…28.94 INCHES

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

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for
* North of Punta Allen to Cancun Mexico, including Cozumel

A Tropical Storm Warning is in effect for…
* Punta Herrero to Punta Allen Mexico
* North and west of Cancun to Dzilam Mexico

A Tropical Storm Watch is in effect for…
* South of Punta Herrero to Puerto Costa Maya Mexico
* West of Dzilam to Progreso Mexico

A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning 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, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 100 PM CDT (1800 UTC), the center of Tropical Storm Gamma was
located near latitude 20.4 North, longitude 87.6 West. Gamma is
moving toward the northwest near 9 mph (15 km/h), and this motion
should continue at a slower forward speed today. A turn toward the
north-northwest is expected on Sunday, followed by a turn to the
west or west-southwest Sunday night or Monday. On the forecast
track, the center of Gamma should move farther inland over the
eastern Yucatan Peninsula later today, and be near the north coast
of the Yucatan Peninsula on Sunday.

Maximum sustained winds are near 70 mph (110 km/h) with higher
gusts. Slow weakening is likely through tonight while the center
moves over land. Some re-strengthening is expected to begin when
the center moves into the southern Gulf of Mexico on Sunday.

Tropical-storm-force winds extend outward up to 80 miles (130 km)
from the center.

The estimated minimum central pressure is 980 mb (28.94 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.

RAINFALL: Gamma is expected to produce rainfall of 4 to 8 inches
across portions of the Yucatan Peninsula and far western Cuba, with
maximum rainfall amounts as high as 10 to 15 inches possible across
northeastern Quintana Roo and northern Yucatan. This rainfall may
produce life-threatening flash floods.

A separate area of significant rain is expected to develop well away
from the center in the Mexican states of Campeche, Tabasco, northern
Chiapas, and southeast Veracruz, with rainfall of 6 to 8 inches and
isolated maximum amounts of 12 inches. This rainfall may produce
life-threatening flash floods and mudslides. The storm will also
result in an area of heavy rains to the south that will affect the
Gulf of Fonseca region between eastern El Salvador, southern
Honduras, and northwest Nicaragua with accumulation of 4-6 inches
and isolated maximum amounts of 8 inches.

Additional rainfall of 1 to 3 inches with maximum amounts of 5
inches is expected over the Cayman Islands.

WIND: Hurricane conditions could still occur within the Hurricane
Warning area during the next couple of hours. Tropical storm
conditions should continue within the Tropical Storm Warning area on
the east coast of the Yucatan Peninsula today, and these conditions
should spread across the remainder of the warning area through
Sunday. Tropical Storm conditions are possible within the Tropical
Storm Watch area later today and on Sunday.

STORM SURGE: A dangerous storm surge will raise water levels by
as much as 1 to 3 feet above normal tide levels along the immediate
coast near and north of where the center crossed the coast. Near
the coast, the surge will be accompanied by large and destructive
waves. Water levels should begin to subside later today.

BULLETIN
Tropical Storm Gamma Advisory Number 5
NWS National Hurricane Center Miami FL AL252020
1000 AM CDT Sat Oct 03 2020

…GAMMA CLOSE TO HURRICANE STRENGTH AS IT NEARS THE EAST COAST
OF THE YUCATAN PENINSULA…

SUMMARY OF 1000 AM CDT…1500 UTC…INFORMATION
———————————————–
LOCATION…20.0N 87.3W
ABOUT 20 MI…30 KM SE OF TULUM MEXICO
MAXIMUM SUSTAINED WINDS…70 MPH…110 KM/H
PRESENT MOVEMENT…NW OR 315 DEGREES AT 9 MPH…15 KM/H
MINIMUM CENTRAL PRESSURE…983 MB…29.03 INCHES

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

The government of Mexico has issued a Hurricane Warning for the
east coast of the Yucatan Peninsula from north of Punta Allen to
Cancun, including Cozumel.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for
* North of Punta Allen to Cancun Mexico, including Cozumel

A Tropical Storm Warning is in effect for…
* Punta Herrero to Punta Allen Mexico
* North and west of Cancun to Dzilam Mexico

A Tropical Storm Watch is in effect for…
* South of Punta Herrero to Puerto Costa Maya Mexico
* West of Dzilam to Progreso Mexico

A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area, in this case within the next 6
hours. Preparations to protect life and property should be rushed
to completion.

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, please monitor
products issued by your national meteorological service.

DISCUSSION AND OUTLOOK
———————-
At 1000 AM CDT (1500 UTC), the center of Tropical Storm Gamma was
located near latitude 20.0 North, longitude 87.3 West. Gamma is
moving toward the northwest near 9 mph (15 km/h), and this motion
should continue at a slower forward speed today. A turn toward the
north-northwest is expected on Sunday, followed by a turn to the
west or west-southwest Sunday night or Monday. On the forecast
track, the center of Gamma should move inland over the eastern
Yucatan Peninsula later today, and be near the north coast of
the Yucatan Peninsula on Sunday.

Maximum sustained winds have increased to near 70 mph (110 km/h)
with higher gusts. Gamma is likely to be near or at hurricane
strength when it makes landfall in the eastern Yucatan Peninsula.
Some weakening is expected after landfall.

Tropical-storm-force winds extend outward up to 80 miles (130 km)
from the center. A station at Cancun, Mexico, reported a sustained
wind of 46 mph (74 km/h) and a gust to 55 mph (89 km/h) within the
past few hours. A station at Xcaret Park near Playa del Carmen
recently reported a sustained wind of 39 mph (63 km/h) and a gust to
54 mph (87 km/h).

The minimum central pressure estimated from Hurricane Hunter
observations is 983 mb (29.03 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.

RAINFALL: Gamma is expected to produce rainfall of 4 to 8 inches
across portions of the Yucatan Peninsula and far western Cuba, with
maximum rainfall amounts as high as 10 to 15 inches possible across
northeastern Quintana Roo and northern Yucatan. This rainfall may
produce life-threatening flash floods.

A separate area of significant rain is expected to develop well away
from the center in the Mexican states of Campeche, Tabasco, northern
Chiapas, and southeast Veracruz, with rainfall of 6 to 8 inches and
isolated maximum amounts of 12 inches. This rainfall may produce
life-threatening flash floods and mudslides. The storm will also
result in an area of heavy rains to the south that will affect the
Gulf of Fonseca region between eastern El Salvador, southern
Honduras, and northwest Nicaragua with accumulation of 4-6 inches
and isolated maximum amounts of 8 inches.

Additional rainfall of 1 to 3 inches with maximum amounts of 5
inches is expected over the Cayman Islands.

WIND: Hurricane conditions are expected within the Hurricane
Warning area during the next few hours. Tropical storm conditions
are spreading into the Tropical Storm Warning area on the east coast
of the Yucatan Peninsula, and these conditions should spread across
the remainder of the warning area through Sunday. Tropical Storm
conditions are possible within the Tropical Storm Watch area later
today and on Sunday.

STORM SURGE: A dangerous storm surge will raise water levels by
as much as 1 to 3 feet above normal tide levels along the immediate
coast near and to the north of where the center makes landfall.
Near the coast, the surge will be accompanied by large and
destructive waves.