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Post-Tropical Cyclone Sally Advisory Number 26
NWS Weather Prediction Center College Park MD AL192020
1100 AM EDT Thu Sep 17 2020
...POST-TROPICAL DEPRESSION SALLY STILL PRODUCING TORRENTIAL RAINS
OVER THE CAROLINAS...
...A FEW TORNADOES POSSIBLE AS SALLY MOVES NORTHEAST ACROSS
CAROLINAS THROUGH TONIGHT...
SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...32.6N 84.4W
ABOUT 115 MI...185 KM SW OF ATHENS GEORGIA
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...NE OR 55 DEGREES AT 21 MPH...33 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES
WATCHES AND WARNINGS
--------------------
Flash Flood Watches are in effect from northeast Georgia across much
of Upstate South Carolina...most of North Carolina... and southeast
Virginia.
A Tornado Watch is posted across portions of central and northeast
South Carolina.
DISCUSSION AND OUTLOOK
----------------------
At 1100 AM EDT (1500 UTC), the center of Post-Tropical Cyclone Sally
was located near latitude 32.6 North, longitude 84.4 West. The
post-tropical cyclone is moving toward the northeast near 21 mph (33
km/h) and this motion is expected to continue through this
afternoon with a gradual increase in forward speed.
Maximum sustained winds are near 30 mph (45 km/h) with higher gusts.
Little change in strength is forecast during the next 48 hours.
The estimated minimum central pressure is 1004 mb (29.65 inches).
HAZARDS AFFECTING LAND
----------------------
RAINFALL/FLOODING: Sally is expected to deposit 4 to 6 inches,
with isolated amounts of 10 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 from southeast Georgia
into South and North Carolina through this afternoon and into this
evening.
SURF: Swells from Sally will continue to affect the Gulf Coast
from the Florida Big Bend westward to southeastern Louisiana
through today. 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 500 PM EDT.
$$
Carbin
FORECAST POSITIONS AND MAX WINDS
INIT 17/1500Z 32.6N 84.4W 25 KT 30 MPH...POST-TROP
12H 18/0000Z 34.0N 81.7W 25 KT 30 MPH...POST-TROP
24H 18/1200Z 37.0N 75.0W 30 KT 35 MPH...POST-TROP
36H 19/0000Z...POST-TROP/REMNT LOW
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