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BULLETIN
Post-Tropical Cyclone Sally Advisory Number  27
NWS Weather Prediction Center College Park MD   AL192020
500 PM EDT Thu Sep 17 2020
 
...POST-TROPICAL DEPRESSION SALLY STARTING TO ACCELERATE BUT STILL 
PRODUCING HEAVY RAINFALL OVER THE EASTERN CAROLINAS AND SOUTHEAST 
VIRGINIA...
...A FEW TORNADOES REMAIN POSSIBLE AS SALLY MOVES NORTHEAST THROUGH 
TONIGHT...
 
 
SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...34.1N 81.0W
ABOUT 70 MI...115 KM NE OF AUGUSTA GEORGIA
ABOUT 75 MI...120 KM W OF FLORENCE SOUTH CAROLINA
MAXIMUM SUSTAINED WINDS...15 MPH...30 KM/H
PRESENT MOVEMENT...ENE OR 60 DEGREES AT 24 MPH...39 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
 
 
WATCHES AND WARNINGS
--------------------
Flash Flood Watches are in effect from Upstate South 
Carolina...most of North Carolina... and southeast
Virginia.
 
A Tornado Watch is posted across portions of eastern
South Carolina and southeastern North Carolina.
 
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 500 PM EDT (2100 UTC), the center of Post-Tropical Cyclone Sally
was located near latitude 34.1 North, longitude 81.0 West. The
post-tropical cyclone is moving toward the east-northeast near 24
mph (39 km/h) and this motion is expected to continue with a slow 
increase in forward speed. 
 
Maximum sustained winds are near 15 mph (30 km/h) with higher gusts.
Increased change in strength is forecast during the next 48 
hours as the system moves back over the open Atlantic after 24 
hours, and starts to restrengthen as a non-tropical/extratropical 
cyclone.  Please refer to Ocean Prediction Center's North Atlantic 
High Seas Forecast (Header: FZNT01 KWBC or HSFAT1).
 
The estimated minimum central pressure is 1004 mb (29.65 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
RAINFALL/FLOODING:  Sally is expected to deposit 2 to 4 inches,
with isolated total amounts of 8 inches, in and near the 
Carolinas and southern Virginia. Widespread flash flooding and minor 
to moderate river flooding is likely.
 
TORNADOES:  Scattered tornadoes may occur across the Eastern 
Carolinas through this evening.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 1100 PM EDT.
 
$$
Forecaster Gallina
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  17/2100Z 34.1N  81.0W   15 KT  15 MPH...POST-TROP
 12H  18/0600Z 35.5N  77.8W   15 KT  15 MPH...POST-TROP
 24H  18/1800Z...POST-TROP/REMNT LOW
 
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