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.

Leave a Reply