Atlantic Hurricane Feed

Post-Tropical Cyclone Idalia Public Advisory



000
WTNT35 KNHC 021146
TCPAT5

BULLETIN
Post-Tropical Cyclone Idalia Intermediate Advisory Number 27A
NWS National Hurricane Center Miami FL       AL102023
800 AM AST Sat Sep 02 2023

...TROPICAL STORM CONDITIONS CONTINUE ON BERMUDA...


SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...31.6N 64.4W
ABOUT 55 MI...85 KM SSE OF BERMUDA
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...ESE OR 105 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...999 MB...29.50 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.

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), the center of Post-Tropical Cyclone Idalia
was located near latitude 31.6 North, longitude 64.4 West.  Idalia 
is moving toward the east-southeast near 6 mph (9 km/h), and this 
general motion is expected through today.  A faster northeastward 
motion is forecast to begin on Sunday, and this motion should
continue into Monday.  On the forecast track, Idalia will remain
near Bermuda today, and then begin to move away from the island
tonight and Sunday.

Maximum sustained winds are near 60 mph (95 km/h) with higher
gusts. Little change in strength is forecast during the next few
days. Idalia could transition to a subtropical storm later today.

Tropical-storm-force winds extend outward up to 220 miles (350 km)
from the center.  A sustained wind of 46 mph (74 km/h) and a gust 
to 56 mph (91 km/h) were reported at St. George's Pier on Bermuda.  
An elevated observing site at the National Museum of Bermuda 
recently reported sustained winds of 64 mph (104 km/h) with a gust 
to 79 mph (128 km/h).

The estimated minimum central pressure is 999 mb (29.50 inches).


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

WIND:  Tropical storm conditions are expected on Bermuda through
early Sunday.

RAINFALL:  Idalia is expected to produce rainfall amounts of 1 to 3
inches, or 25 to 75 millimeters, across Bermuda through the weekend.
The heavy rainfall may cause areas of flash and urban flooding on
the island.

SURF:  Swells generated by Idalia will affect the southeastern U.S.
coast and Bermuda during 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.


NEXT ADVISORY
-------------
Next complete advisory at 1100 AM AST.

$$
Forecaster Berg



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