Alert archive / Alabama / Flash Flood Warnings in 2019

Flash Flood Warning 14, NWS Huntsville, AL

July 17, 2019Colbert County, Franklin County, Lawrence County, Alabama

NWS Huntsville, AL issued this flash flood warning at Jul 17, 2019, 8:10 AM CDT for Colbert County, 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
Jul 17, 2019, 8:10 AM CDT (13:10 UTC)
Expired
Jul 17, 2019, 11:15 AM CDT
In force
3 hr
Issued by
NWS Huntsville, AL
Area
Storm-based polygon
Flood severity
None

Counties Colbert County, AL, Franklin County, AL, Lawrence County, AL

The radar

The Columbus AFB radar (KGWX), 96 km from the middle of the area, began a volume at 13:09 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 Jul 17, 6:46 AM CDT, 1 hour 24 minutes earlier.

Area forecast discussion, Jul 17, 6:46 AM CDT, 1 hour 24 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jul 17, 4:17 AM CDT, 3 hours 53 minutes before
Hazardous Weather Outlook
National Weather Service Huntsville AL
417 AM CDT Wed Jul 17 2019

ALZ001>010-016-TNZ076-096-097-180000-
Lauderdale-Colbert-Franklin AL-Lawrence-Limestone-Madison-Morgan-
Marshall-Jackson-DeKalb-Cullman-Moore-Lincoln-Franklin TN-
417 AM CDT Wed Jul 17 2019

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

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

Numerous thunderstorms are forecast to affect the Tennessee Valley
today. Rainfall totals of around 2 inches over northwest Alabama
could result in flash flooding or areal flooding, especially those
areas that impacted by several rounds of heavy rainfall. Wind gusts
to 50 mph and frequent lightning is also possible with the stronger
storms. Thunderstorm chances will diminish from west to east this
evening, as an upper level system exits the region.

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

Heat concerns return to the area on Thursday, continuing through
Saturday. Daytime high temperatures will peak into the mid 90s, with
Heat Index values from the upper 90s to excess of 105 degrees.

Residual moisture along with very warm to hot temperatures, will
result in mainly afternoon and early evening thunderstorms each
day. A frontal boundary approaching the region early next week, will
bring somewhat higher chances for thunderstorms next Monday through
Tuesday.

.SPOTTER CALL TO ACTION STATEMENT...

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

In the hours before

Special weather statement, Jul 17, 6:15 AM CDT, 1 hour 55 minutes before
Special Weather Statement
National Weather Service Huntsville AL
615 AM CDT Wed Jul 17 2019

ALZ001-005-171200-
Lauderdale AL-Limestone AL-
615 AM CDT Wed Jul 17 2019

...SIGNIFICANT WEATHER ADVISORY FOR LAUDERDALE AND NORTHERN LIMESTONE
COUNTIES UNTIL 700 AM CDT...

At 612 AM CDT, Doppler radar was tracking a strong thunderstorm near
Lexington, or 20 miles west of Athens, moving east at 35 mph.
Additional thunderstorms forming west of Oakland will bring more
very heavy rains across parts of Lauderdale and northern Limestone
counties.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Florence, Rogersville, Ardmore, Killen, Lexington, St. Florian,
Underwood-Petersville, Elkmont, Anderson and Lester.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is also occurring with this storm.
Lightning can strike several miles away from a thunderstorm. Seek a
safe shelter inside a building or vehicle.

&&

LAT...LON 3499 8798 3499 8678 3488 8678 3479 8734
      3481 8748 3483 8753 3478 8767 3476 8786
      3479 8790
TIME...MOT...LOC 1112Z 255DEG 29KT 3491 8731

RSB
Special weather statement, Jul 17, 7:16 AM CDT, 54 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 7:02 PM CDTSpecial Weather StatementHUNJackson, Madison28 min
Jul 16, 7:03 PM CDTSpecial Weather StatementHUNCullman27 min
Jul 16, 7:29 PM CDTSpecial Weather StatementHUNJackson31 min
Jul 16, 7:30 PM CDTSpecial Weather StatementHUNMarshall30 min
Jul 16, 8:00 PM CDTSpecial Weather StatementHUNJackson15 min
Jul 17, 6:15 AM CDTSpecial Weather StatementHUNLauderdale45 min
Jul 17, 6:26 AM CDTFlash Flood WarningHUNColbert, Lauderdale6 hr
Jul 17, 7:16 AM CDTSpecial Weather StatementHUNFranklin44 min
Jul 17, 7:45 AM CDTSevere Thunderstorm WarningHUNFranklin28 min
Jul 17, 8:32 AM CDTSpecial Weather StatementHUNLawrence43 min
Jul 17, 9:47 AM CDTSpecial Weather StatementHUNLawrence, Morgan43 min
Jul 17, 10:34 AM CDTSpecial Weather StatementHUNMorgan41 min
Jul 17, 11:16 AM CDTSpecial Weather StatementHUNMorgan44 min
Jul 17, 11:48 AM CDTFlash Flood WarningHUNLawrence, Morgan2 hr

Nearby

Flash Flood Warnings in Alabama, 2019Every flash flood warning in 2019

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.