Now a Depression, Sally Dumping Torrential Rains Over Eastern Alabama & Western Georgia

| September 16, 2020 @ 10:16 pm

BULLETIN
Tropical Depression Sally Advisory Number 24
NWS National Hurricane Center Miami FL AL192020
1000 PM CDT Wed Sep 16 2020

SUMMARY OF 1000 PM CDT…0300 UTC…INFORMATION
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LOCATION…31.9N 86.1W
ABOUT 30 MI…50 KM SSE OF MONTGOMERY ALABAMA
MAXIMUM SUSTAINED WINDS…35 MPH…55 KM/H
PRESENT MOVEMENT…NE OR 45 DEGREES AT 9 MPH…15 KM/H
MINIMUM CENTRAL PRESSURE…995 MB…29.39 INCHES


COASTAL WATCHES AND WARNINGS
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There are no coastal watches or warnings in effect.


DISCUSSION AND OUTLOOK
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At 1000 PM CDT (0300 UTC), the center of Tropical Depression Sally was located near latitude 31.9 North, longitude 86.1 West. The depression is moving toward the northeast near 9 mph (15 km/h), and a northeastward to east-northeastward motion at a faster forward speed is expected into Friday. On the forecast track, the center of Sally will move across southeastern Alabama tonight, over central Georgia on Thursday, and move over South Carolina Thursday night.

Maximum sustained winds have decreased to near 35 mph (55 km/h) with higher gusts. Additional weakening is forecast during the next couple of days, and Sally is expected to become a remnant low on Friday.

The estimated minimum central pressure is 995 MB (29.39 inches).


HAZARDS AFFECTING LAND
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RAINFALL: Rainfall totals expected as Sally tracks across the Southeast through Friday:

Southeast Alabama and central Georgia: 4 to 8 inches with isolated amounts of 12 inches, resulting in significant flash flooding and widespread minor to moderate and isolated major river flooding.

Central to upstate South Carolina: 4 to 7 inches, with isolated amounts of 10 inches. Widespread flash flooding and minor to moderate river flooding is possible.

Western to central North Carolina and far southeast Virginia: 4 to 6 inches, isolated amounts up to 8 inches. Scattered flash flooding and widespread minor river flooding is possible.

Sally has produced storm totals of 10 to 20 inches, with isolated amounts of 30-35 inches, across the central Gulf Coast from the Florida Panhandle west of Tallahassee to Mobile Bay, Alabama. Most moderate to major river flooding will crest by the weekend, but rivers will remain elevated.

STORM SURGE: Water levels remain elevated along the Florida Panhandle coast but will continue to recede over the next several hours.

TORNADOES: A couple of tornadoes may occur overnight across southern Georgia and northern Florida. The threat of tornadoes will shift northeastward into eastern Georgia and much of the Carolinas on Thursday.

SURF: Swells from Sally will continue to affect the Gulf Coast from the Florida Big Bend westward to southeastern Louisiana during the next day or so. These swells are likely to cause life-threatening surf and rip current conditions.


Category: Alabama's Weather, ALL POSTS, Severe Weather, Tropical

About the Author ()

Scott Martin is an operational meteorologist, professional graphic artist, musician, husband, and father. Not only is Scott a member of the National Weather Association, but he is also the Central Alabama Chapter of the NWA president. Scott is also the co-founder of Racecast Weather, which provides forecasts for many racing series across the USA. He also supplies forecasts for the BassMaster Elite Series events including the BassMaster Classic.

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