FLORIDA
STORMS
Post-Tropical Cyclone Larry
LOCATED
550 MI NNE OF CAPE RACE NEWFOUNDLAND
WINDS
70 MPH
PRESSURE
963 MB
MOVING
NNE AT 48 MPH
From the National Hurricane Center at 1100 AM AST Sat Sep 11 2021
Larry is now a post-tropical cyclone over the labrador sea.
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key messages
Alerts
hazards
summary
DISCUSSION

1. php Key Messages1. Large swells generated by Post-Tropical Cyclone Larry will continue to affect portions of the the east coast of the United States and Atlantic Canada through tonight. These swells will cause life-threatening surf and rip current conditions, and beachgoers and other interests along these coasts are urged to follow the guidance of lifeguards and local officials.

1. php Key Messages1. Large swells generated by Post-Tropical Cyclone Larry will continue to affect portions of the the east coast of the United States and Atlantic Canada through tonight. These swells will cause life-threatening surf and rip current conditions, and beachgoers and other interests along these coasts are urged to follow the guidance of lifeguards and local officials.

There are no coastal watches or warnings in effect.

There are no coastal watches or warnings in effect.

Key messages for Larry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC and on the web at hurricanes.gov/graphics_at2.shtml?key_messages

STORM SURGE: Water levels will continue to subside in southeastern Newfoundland today.

SURF: Significant swells from Larry will continue affecting portions of the east coast of the United States and Atlantic Canada through tonight. These swells are likely to cause life threatening surf and rip current conditions. Please consult products from your local weather office.

Key messages for Larry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC and on the web at hurricanes.gov/graphics_at2.shtml?key_messages

STORM SURGE: Water levels will continue to subside in southeastern Newfoundland today.

SURF: Significant swells from Larry will continue affecting portions of the east coast of the United States and Atlantic Canada through tonight. These swells are likely to cause life threatening surf and rip current conditions. Please consult products from your local weather office.

At 1100 AM AST (1500 UTC), the center of Post Tropical Cyclone Larry was located near latitude 54.0 North, longitude 48.2 West. The post tropical cyclone is moving toward the north northeast near 48 mph (78 km/h) and this heading with a decrease in forward speed is expected until Larry merges with an extratropical low tonight or early Sunday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Some slight weakening is possible before Larry merges with another extratropical low. Tropical storm force winds extend outward up to 310 miles (500 km) from the center. The estimated minimum central pressure is 963 mb (28.44 inches).

At 1100 AM AST (1500 UTC), the center of Post Tropical Cyclone Larry was located near latitude 54.0 North, longitude 48.2 West. The post tropical cyclone is moving toward the north northeast near 48 mph (78 km/h) and this heading with a decrease in forward speed is expected until Larry merges with an extratropical low tonight or early Sunday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Some slight weakening is possible before Larry merges with another extratropical low. Tropical storm force winds extend outward up to 310 miles (500 km) from the center. The estimated minimum central pressure is 963 mb (28.44 inches).

Satellite images indicate that Larry has completed its transition to a post-tropical cyclone with most of the deep convection dissipating near the low-level center and frontal features developing. In addition, the low- and mid-level centers are now well separated, and the cyclone appears a little weaker. The initial intensity is estimated to be 60 kt. The post-tropical system is very large and gale-force winds and high seas extend far from the center. It is interesting to note that up to just several hours ago Larry had maintained an inner core and a fairly tropical appearance despite being at very high latitudes and over quite cold water. Larry is racing northeastward, with the initial motion estimated to be 030/42 kt. The storm is expected to merge with another large extratropical low tonight or early Sunday.

This is the last NHC advisory on Larry. For more information on this system, see High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php

Satellite images indicate that Larry has completed its transition to a post-tropical cyclone with most of the deep convection dissipating near the low-level center and frontal features developing. In addition, the low- and mid-level centers are now well separated, and the cyclone appears a little weaker. The initial intensity is estimated to be 60 kt. The post-tropical system is very large and gale-force winds and high seas extend far from the center. It is interesting to note that up to just several hours ago Larry had maintained an inner core and a fairly tropical appearance despite being at very high latitudes and over quite cold water. Larry is racing northeastward, with the initial motion estimated to be 030/42 kt. The storm is expected to merge with another large extratropical low tonight or early Sunday.

This is the last NHC advisory on Larry. For more information on this system, see High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php

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