Tropical Weather Outlook NWS National Hurricane Center Miami FL Issued by the NWS Weather Prediction Center College Park MD 200 PM EDT Wed Sep 8 2021 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Hurricane Larry, located over the central Atlantic several hundred miles east-southeast of Bermuda. 1. Showers and thunderstorms have become a little better organized today in association with a surface trough and an upper-level disturbance over the northeastern Gulf of Mexico. In addition, recent satellite-derived wind data indicate that a broad area of low pressure may be forming. The system is expected to move northeastward through this evening, and a tropical depression could form before it reaches the northeastern Gulf coast tonight or early Thursday. The disturbance is then expected to cross the southeastern United States and emerge over the western Atlantic late this week, where environmental conditions appear unfavorable for additional development. Regardless of development, areas of heavy rainfall are likely across portions of the Florida panhandle and southern Georgia through Thursday, with localized flooding possible. * Formation chance through 48 hours...medium...60 percent. * Formation chance through 5 days...medium...60 percent. 2. A tropical wave is expected to emerge off of the western coast of Africa in a few days. Some development of this system is possible thereafter as it moves west-northwestward over the far eastern Atlantic. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...20 percent.
Category Archives: Weather
Larry Advisory # 32A
BULLETIN Hurricane Larry Intermediate Advisory Number 32A NWS National Hurricane Center Miami FL AL122021 200 PM AST Wed Sep 08 2021 ...LARRY GETTING CLOSER TO BERMUDA... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...28.3N 58.9W ABOUT 425 MI...685 KM SE OF BERMUDA MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...966 MB...28.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Bermuda A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. Interests in southeastern Newfoundland should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 PM AST (1800 UTC), the center of Hurricane Larry was located near latitude 28.3 North, longitude 58.9 West. Larry is moving toward the northwest near 13 mph (20 km/h), and this general motion is expected to continue through today. A turn toward the north-northwest and north with an increase in forward speed is forecast on Thursday, with a faster northeastward motion expected by Friday. On the forecast track, the center of Larry should pass east of Bermuda on Thursday, and move near or over southeastern Newfoundland late Friday. Maximum sustained winds are near 110 mph (175 km/h) with higher gusts. Gradual weakening is forecast during the next few days, but Larry is expected to remain a hurricane during that time. Larry is a large hurricane. Hurricane-force winds extend outward up to 70 miles (110 km) from the center and tropical-storm-force winds extend outward up to 240 miles (390 km). The estimated minimum central pressure is 966 mb (28.53 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Larry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC and on the web at hurricanes.gov/graphics_at2.shtml?key_messages WIND: Tropical storm conditions are expected on Bermuda beginning tonight or early Thursday. SURF: Swells generated by Larry will continue to affect the Leeward Islands, portions of the Greater Antilles, and the Bahamas through midweek, and impact Bermuda through the end of the week. Significant swells from Larry will begin reaching the east coast of the United States and Atlantic Canada today and continue affecting these shores through the end of the week. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. RAINFALL: Outer rain bands from Hurricane Larry may periodically impact Bermuda tonight into Thursday. Significant rainfall totals are currently not expected, however briefly heavy rain rates within these bands may result in an inch or two of rain through Thursday.
Larry Advisory # 31A
BULLETIN Hurricane Larry Intermediate Advisory Number 31A NWS National Hurricane Center Miami FL AL122021 800 AM AST Wed Sep 08 2021 ...LARRY CAUSING DANGEROUS SWELLS ON THE WESTERN ATLANTIC COAST THIS WEEK... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...27.0N 57.7W ABOUT 560 MI...905 KM SE OF BERMUDA MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...NW OR 325 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...966 MB...28.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Bermuda Weather Service has issued a Tropical Storm Warning for Bermuda. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Bermuda A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. Interests in southeastern Newfoundland should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 800 AM AST (1200 UTC), Hurricane Larry was located near latitude 27.0 North, longitude 57.7 West. Larry is moving toward the northwest near 10 mph (17 km/h), and this general motion is expected to continue through today. A turn toward the north-northwest and north with an increase in forward speed is forecast on Thursday. A faster northeastward motion is expected by Friday. On the forecast track, the center of Larry should pass east of Bermuda on Thursday. Maximum sustained winds are near 115 mph (185 km/h) with higher gusts. Larry is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Gradual weakening is forecast during the next several days, but Larry is expected to remain a hurricane during that time. Larry is a large hurricane. Hurricane-force winds extend outward up to 70 miles (110 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km). The minimum central pressure reported by an Air Force Hurricane Hunter aircraft is 966 mb (28.53 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Larry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC. WIND: Tropical storm conditions are possible on Bermuda beginning tonight or early Thursday. SURF: Swells generated by Larry will continue to affect the Leeward Islands, portions of the Greater Antilles, and the Bahamas through midweek, and impact Bermuda through the end of the week. Significant swells from Larry will begin reaching the east coast of the United States and Atlantic Canada today and continue affecting these shores through the end of the week. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.
Larry Advisory # 29A
BULLETIN Hurricane Larry Intermediate Advisory Number 29A NWS National Hurricane Center Miami FL AL122021 800 PM AST Tue Sep 07 2021 ...RECONNAISSANCE AIRCRAFT FINDS LARGE LARRY A LITTLE BETTER ORGANIZED... ...LIKELY TO PRODUCE DANGEROUS SWELLS OVER THE WESTERN ATLANTIC COAST THIS WEEK... SUMMARY OF 800 PM AST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...25.4N 56.5W ABOUT 690 MI...1115 KM SE OF BERMUDA MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...965 MB...28.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Bermuda 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 800 PM AST (0000 UTC), the center of the large eye of Hurricane Larry was located by an Air Force Reserve Hurricane Hunter aircraft near latitude 25.4 North, longitude 56.5 West. Larry is moving toward the northwest near 9 mph (15 km/h), and this general motion is expected to continue through Wednesday. A turn toward the north-northwest and north with an increase in forward speed is forecast on Thursday. On the forecast track, the center of Larry should pass east of Bermuda on Thursday. Maximum sustained winds remain near 115 mph (185 km/h) with higher gusts. Larry is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Slow weakening is forecast during the next several days. Larry is a large hurricane. Hurricane-force winds extend outward up to 70 miles (110 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km). The estimated minimum central pressure is 965 mb (28.50 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Larry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC. WIND: Tropical storm conditions are possible on Bermuda beginning late Wednesday or early Thursday. SURF: Swells generated by Larry will continue to affect the Lesser Antilles, portions of the Greater Antilles, and the Bahamas through midweek, and impact Bermuda through the end of the week. Significant swells should reach the east coast of the United States and Atlantic Canada by midweek and continue affecting these shores through the end of the week. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.
Larry Advisory # 27
BULLETIN
Hurricane Larry Advisory Number 27
NWS National Hurricane Center Miami FL AL122021
500 AM AST Tue Sep 07 2021
...AIR FORCE HURRICANE HUNTERS TO INVESTIGATE LARRY THIS MORNING...
...LARRY EXPECTED TO CAUSE DANGEROUS SURF AND RIP CURRENTS ALONG
WESTERN ATLANTIC SHORES LATER THIS WEEK...
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...23.8N 55.1W
ABOUT 830 MI...1340 KM SE OF BERMUDA
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...958 MB...28.29 INCHES
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
Interests in Bermuda should monitor the progress of Larry. A
tropical storm watch could be required for the island today.
DISCUSSION AND OUTLOOK
----------------------
At 500 AM AST (0900 UTC), the center of Hurricane Larry was located
near latitude 23.8 North, longitude 55.1 West. Larry is moving
toward the northwest near 10 mph (17 km/h), and this general motion
is expected to continue through Wednesday. A turn toward the
north-northwest and north with an increase in forward speed is
forecast on Thursday.
Maximum sustained winds are near 120 mph (195 km/h) with higher
gusts. Larry is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Some gradual weakening is forecast during the
next several days.
Larry is a large hurricane. Hurricane-force winds extend outward
up to 70 miles (110 km) from the center, and tropical-storm-force
winds extend outward up to 185 miles (295 km).
The estimated minimum central pressure is 958 mb (28.29 inches).
HAZARDS AFFECTING LAND
----------------------
Key messages for Larry can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC.
SURF: Swells generated by Larry will continue to affect the Lesser
Antilles, portions of the Greater Antilles, and the Bahamas through
midweek, and impact Bermuda through the end of the week.
Significant swells should reach the east coast of the United States
and Atlantic Canada by midweek and continue affecting these shores
through the end of the week. These swells are likely to cause
life-threatening surf and rip current conditions. Please consult
products from your local weather office.
Larry Advisory # 25
BULLETIN Hurricane Larry Advisory Number 25 NWS National Hurricane Center Miami FL AL122021 500 PM AST Mon Sep 06 2021 ...NOAA AIRCRAFT FINDS LARRY SLIGHTLY STRONGER... ...EXPECTED TO CAUSE DANGEROUS SURF AND RIP CURRENTS ALONG WESTERN ATLANTIC SHORES LATER THIS WEEK... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...22.5N 53.9W ABOUT 665 MI...1070 KM ENE OF THE NORTHERN LEEWARD ISLANDS ABOUT 950 MI...1530 KM SE OF BERMUDA MAXIMUM SUSTAINED WINDS...125 MPH...205 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Hurricane Larry was located near latitude 22.5 North, longitude 53.9 West. Larry is moving toward the northwest near 10 mph (17 km/h), and this general motion is expected to continue through Wednesday, followed by a turn toward the north-northwest and north on Thursday. Maximum sustained winds are near 125 mph (205 km/h) with higher gusts. Larry is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in intensity are possible during the next couple of days. Thereafter, some gradual weakening is forecast. Larry remains a large hurricane. Hurricane-force winds extend outward up to 70 miles (110 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km). The estimated minimum central pressure is 956 mb (28.23 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Larry will continue to affect the Lesser Antilles, portions of the Greater Antilles, and the Bahamas through Tuesday, and Bermuda through late this week. Significant swells should reach the east coast of the United States and Atlantic Canada by midweek and continue affecting these shores through the end of the week. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.
Larry Advisory # 23
BULLETIN
Hurricane Larry Advisory Number 23
NWS National Hurricane Center Miami FL AL122021
500 AM AST Mon Sep 06 2021
...LARGE LARRY STILL A MAJOR HURRICANE...
...DANGEROUS SURF AND RIP CURRENTS EXPECTED ALONG WESTERN ATLANTIC
SHORES LATER THIS WEEK...
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...21.5N 52.4W
ABOUT 730 MI...1175 KM ENE OF THE NORTHERN LEEWARD ISLANDS
ABOUT 1065 MI...1715 KM SE OF BERMUDA
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
DISCUSSION AND OUTLOOK
----------------------
At 500 AM AST (0900 UTC), the center of Hurricane Larry was located
near latitude 21.5 North, longitude 52.4 West. Larry is moving
toward the northwest near 12 mph (19 km/h), and this general motion
with a slight decrease in forward speed is expected over the next
couple of days. A slightly faster northwestward motion is forecast
by early Thursday.
Maximum sustained winds are near 120 mph (195 km/h) with higher
gusts. Larry is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Some fluctuations in intensity are possible
during the next couple of days. Thereafter, some gradual weakening
is forecast.
Larry is a large hurricane. Hurricane-force winds extend outward
up to 70 miles (110 km) from the center, and tropical-storm-force
winds extend outward up to 175 miles (280 km).
The estimated minimum central pressure is 956 mb (28.23 inches).
HAZARDS AFFECTING LAND
----------------------
SURF: Swells generated by Larry are affecting the Lesser Antilles
and are expected to spread westward to portions of the Greater
Antilles, the Bahamas, and Bermuda today through Tuesday.
Significant swells should reach the east coast of the United States
and Atlantic Canada by midweek and continue affecting these shores
through the end of the week. These swells are likely to cause
life-threatening surf and rip current conditions. Please consult
products from your local weather office.
Larry Advisory # 21
BULLETIN Hurricane Larry Advisory Number 21 NWS National Hurricane Center Miami FL AL122021 500 PM AST Sun Sep 05 2021 ...LARRY REMAINS A LARGE MAJOR HURRICANE... ...EXPECTED TO CAUSE DANGEROUS SURF AND RIP CURRENTS ALONG THE WESTERN ATLANTIC SHORES LATER THIS WEEK... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...20.5N 50.6W ABOUT 830 MI...1335 KM ENE OF THE NORTHERN LEEWARD ISLANDS ABOUT 1195 MI...1925 KM SE OF BERMUDA MAXIMUM SUSTAINED WINDS...125 MPH...205 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...955 MB...28.20 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Hurricane Larry was located near latitude 20.5 North, longitude 50.6 West. Larry is moving toward the northwest near 13 mph (20 km/h). A northwestward motion with a slight decrease in forward speed is expected during the next few days. Maximum sustained winds are near 125 mph (205 km/h) with higher gusts. Larry is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Little change in strength is forecast during the next few days, although fluctuations in intensity will be possible. However, Larry is expected to remain a major hurricane through the middle of this week. Larry is a large hurricane. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 955 mb (28.20 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells generated by Larry are reaching the Lesser Antilles and are expected to spread westward to portions of the Greater Antilles, the Bahamas, and Bermuda on Monday and Tuesday. Significant swells should reach the east coast of the United States and Atlantic Canada by midweek. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.
Larry Advisory # 20
BULLETIN
Hurricane Larry Advisory Number 20
NWS National Hurricane Center Miami FL AL122021
1100 AM AST Sun Sep 05 2021
...LARRY EXPECTED TO CAUSE DANGEROUS SURF AND RIP CURRENTS ALONG THE
WESTERN ATLANTIC SHORES LATER THIS WEEK...
SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...19.5N 49.7W
ABOUT 880 MI...1415 KM E OF THE NORTHERN LEEWARD ISLANDS
ABOUT 1285 MI...2070 KM SE OF BERMUDA
MAXIMUM SUSTAINED WINDS...125 MPH...205 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...955 MB...28.20 INCHES
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
DISCUSSION AND OUTLOOK
----------------------
At 1100 AM AST (1500 UTC), the eye of Hurricane Larry was located
near latitude 19.5 North, longitude 49.7 West. Larry is moving
toward the northwest near 13 mph (20 km/h). A northwestward motion
with a slight decrease in forward speed is expected during the next
few 
days.
Maximum sustained winds are near 125 mph (205 km/h) with higher
gusts. Larry is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Little change in strength is forecast during
the next few days, although fluctuations in intensity will be
possible. Larry is expected to remain a major hurricane through the
middle of this week.
Larry is a large hurricane. Hurricane-force winds extend outward
up to 45 miles (75 km) from the center and tropical-storm-force
winds extend outward up to 175 miles (280 km).
The estimated minimum central pressure is 955 mb (28.20 inches).
HAZARDS AFFECTING LAND
----------------------
SURF: Swells generated by Larry are expected to reach the Lesser
Antilles today, and will spread westward to portions of the Greater
Antilles, the Bahamas, and Bermuda on Monday and Tuesday.
Significant swells will likely reach the east coast of the United
States and Atlantic Canada by midweek. These swells are likely to
cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
Larry Advisory # 19
BULLETIN
Hurricane Larry Advisory Number 19
NWS National Hurricane Center Miami FL AL122021
500 AM AST Sun Sep 05 2021
...DANGEROUS SURF AND RIP CURRENTS EXPECTED ALONG MANY WESTERN
ATLANTIC SHORES LATER THIS WEEK DUE TO LARGE SWELLS FROM LARRY...
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...18.8N 49.0W
ABOUT 925 MI...1485 KM E OF THE NORTHERN LEEWARD ISLANDS
ABOUT 1350 MI...2175 KM SE OF BERMUDA
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...958 MB...28.29 INCHES
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
DISCUSSION AND OUTLOOK
----------------------
At 500 AM AST (0900 UTC), the center of Hurricane Larry was located
near latitude 18.8 North, longitude 49.0 West. Larry is moving
toward the northwest near 14 mph (22 km/h). A northwestward motion
with a slight decrease in forward speed is expected during the next
few days.
Maximum sustained winds are near 120 mph (195 km/h) with higher
gusts. Larry is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Little change in strength is forecast during
the next few days, although fluctuations in intensity will be
possible. Larry is expected to remain a major hurricane through the
middle of this week.
Hurricane-force winds extend outward up to 45 miles (75 km) from the
center and tropical-storm-force winds extend outward up to 160 miles
(260 km).
The estimated minimum central pressure is 958 mb (28.29 inches). A
drifting buoy near the center of Larry recently measured a pressure
of 962.9 mb (28.43 inches).
HAZARDS AFFECTING LAND
----------------------
SURF: Swells generated by Larry are expected to reach the Lesser
Antilles today, and will spread westward to portions of the Greater
Antilles, the Bahamas, and Bermuda on Monday and Tuesday.
Significant swells will likely reach the east coast of the United
States and Atlantic Canada by midweek. These swells are likely to
cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
