Alert archive / Alabama / Flash Flood Warnings in 2020

Flash Flood Warning 20, NWS Huntsville, AL

August 26, 2020Franklin County, Lawrence County, Alabama

NWS Huntsville, AL issued this flash flood warning at Aug 26, 2020, 5:57 AM CDT for Franklin County, Lawrence County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 26, 2020, 5:57 AM CDT (10:57 UTC)
Expired
Aug 26, 2020, 8:52 AM CDT
In force
3 hr
Issued by
NWS Huntsville, AL
Area
Storm-based polygon
Flood severity
None

Counties Franklin County, AL, Lawrence County, AL

The radar

The Columbus AFB radar (KGWX), 95 km from the middle of the area, began a volume at 10:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Huntsville, AL wrote its last area forecast discussion before this flash flood warning went out at Aug 26, 3:16 AM CDT, 2 hours 41 minutes earlier.

Area forecast discussion, Aug 26, 3:16 AM CDT, 2 hours 41 minutes before
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Hazardous weather outlook, Aug 26, 3:31 AM CDT, 2 hours 26 minutes before
Hazardous Weather Outlook
National Weather Service Huntsville AL
331 AM CDT Wed Aug 26 2020

ALZ001>010-016-TNZ076-096-097-262345-
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan-
Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN-
331 AM CDT Wed Aug 26 2020

This Hazardous Weather Outlook is for north Alabama and portions of
southern middle Tennessee.

.DAY ONE...Today and Tonight...

The probability for widespread hazardous weather is low.

Isolated thunderstorms will be possible during the afternoon and
early evening hours.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

Isolated thunderstorms will be possible again on Thursday, as a weak
disturbance moves northward through the region. The coverage of
storms will increase Friday into Saturday, as the remnants of
Hurricane Laura move eastward across the Mid South and lower Ohio
Valley areas. A few storms may be capable of producing locally heavy
rainfall and strong gusty winds. A few tornadoes may also be possible
late Friday.

Scattered storms will remain in the forecast Sunday and Monday, as a
weak frontal boundary settles into the region from the north.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management personnel is
not anticipated at this time.

In the hours before

Special weather statement, Aug 26, 4:01 AM CDT, 1 hour 56 minutes before
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Special weather statement, Aug 26, 5:13 AM CDT, 44 minutes before
Special Weather Statement
National Weather Service Huntsville AL
513 AM CDT Wed Aug 26 2020

ALZ002>004-261100-
Lawrence AL-Franklin AL-Colbert AL-
513 AM CDT Wed Aug 26 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COLBERT...EASTERN
FRANKLIN AND SOUTHERN LAWRENCE COUNTIES UNTIL 600 AM CDT...

At 512 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Phil Campbell to 7 miles northeast of Needmore
to near Ashridge. Movement was north at 20 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Russellville, Moulton, Phil Campbell, Littleville, Mt Hope, La
Grange, Tharptown, Ne Smith, Wren and Landersville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Very heavy rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3466 8774 3461 8740 3439 8718 3430 8724
      3431 8778
TIME...MOT...LOC 1012Z 196DEG 17KT 3436 8768 3433 8753 3422 8742

AMP

The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 26, 4:01 AM CDTSpecial Weather StatementHUNColbert, Franklin44 min
Aug 26, 5:13 AM CDTSpecial Weather StatementHUNLawrence47 min
Aug 26, 6:04 AM CDTSpecial Weather StatementHUNLawrence41 min
Aug 26, 6:38 AM CDTSpecial Weather StatementHUNFranklin52 min
Aug 26, 6:49 AM CDTSpecial Weather StatementHUNLawrence, Limestone41 min
Aug 26, 7:17 AM CDTFlash Flood Warning EmergencyCatastrophic damage threatHUNFranklin3 hr
Aug 26, 7:35 AM CDTSpecial Weather StatementHUNFranklin40 min
Aug 26, 7:36 AM CDTSpecial Weather StatementHUNMadison39 min
Aug 26, 8:52 AM CDTAreal Flood WarningHUNColbert, Franklin, Lawrence3 hr

Nearby

Flash Flood Warnings in Alabama, 2020Every flash flood warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.