Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 224, NWS Huntsville, AL

June 24, 2011Franklin County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Jun 24, 2011, 2:48 PM CDT for Franklin County, Alabama. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 24, 2011, 2:48 PM CDT (19:48 UTC)
Expired: Jun 24, 2011, 3:15 PM CDT
In force: 27 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon

County Franklin County, AL

The radar

The Columbus AFB radar (KGWX), 75 km from the middle of the area, began a volume at 19:50 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 24, 1:49 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.8 hours before the alert went out and 171 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1692 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 755 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 24, 1:56 PM CDT, 52 minutes earlier.

Area forecast discussion, Jun 24, 1:56 PM CDT, 52 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, Jun 24, 2:09 PM CDT, 39 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
209 PM CDT FRI JUN 24 2011

ALZ001>010-016-TNZ076-096-097-250315-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
209 PM CDT FRI JUN 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS
OF SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORMS CONTINUE TO DEVELOP ACROSS THE TENNESSEE VALLEY THIS
AFTERNOON AND WILL LINGER INTO THE EVENING HOURS AS A FRONTAL
BOUNDARY SLIDES SOUTHWARD ACROSS THE AREA. DAMAGING WINDS...LARGE
HAIL...FREQUENT LIGHTNING...AND LOCALLY HEAVY RAINFALL WILL BE
POSSIBLE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH ALABAMA AND
SOUTHERN TENNESSEE THROUGH 9 PM CDT TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

CHANCES FOR THUNDERSTORMS WILL CONTINUE THROUGH THE WEEKEND AND
EARLY NEXT WEEK...AS AN UNSETTLED WEATHER PATTERN PREVAILS ACROSS
THE SOUTHERN STATES.

THE MAIN THREATS POSED BY STRONGER STORMS INCLUDE GUSTY WINDS...
FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL. A FEW STORMS COULD
BECOME SEVERE...WITH THE MAIN THREAT DAMAGING WINDS AND MARGINALLY
SEVERE HAIL. LOCALLY HEAVY RAINFALL...ESPECIALLY IF STORMS REPEATEDLY
AFFECT THE SAME AREA...COULD LEAD TO INSTANCES OF FLASH FLOODING.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS
REQUESTED THIS AFTERNOON AND EVENING. PLEASE RELAY ANY DAMAGE REPORTS
TO THE NATIONAL WEATHER SERVICE...LOCAL EMERGENCY MANAGEMENT
AGENCY...OR LOCAL MEDIA OUTLETS.

12

In the hours before

Special weather statement, Jun 24, 2:22 PM CDT, 26 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>

Local storm report, Jun 24, 2:32 PM CDT, 16 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>

Local storm report, Jun 24, 2:35 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
235 PM CDT FRI JUN 24 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0215 PM     HAIL             HOLLYTREE               34.80N 86.25W
06/24/2011  E0.50 INCH       JACKSON            AL   CO-OP OBSERVER

&&

JS

Local storm report, Jun 24, 2:37 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
237 PM CDT FRI JUN 24 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0225 PM     HAIL             2 N FARLEY              34.62N 86.57W
06/24/2011  E0.25 INCH       MADISON            AL   PUBLIC

            AT SUPER WALMART

&&

JS

Special weather statement, Jun 24, 2:40 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
240 PM CDT FRI JUN 24 2011

ALZ003-242015-
FRANKLIN-
240 PM CDT FRI JUN 24 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWEST FRANKLIN COUNTY UNTIL
315 PM CDT...

AT 240 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR VINA...OR NEAR RED BAY...MOVING EAST AT 35
MPH.

NICKEL SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  ATWOOD.
  HODGES.
  DUKETON.

THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY
EVENING FOR NORTHERN ALABAMA AND CENTRAL TENNESSEE.

&&

LAT...LON 3440 8816 3443 8816 3449 8815 3444 8775
      3432 8776 3432 8811 3432 8816 3433 8817
TIME...MOT...LOC 1940Z 282DEG 30KT 3438 8806

DJN

Special weather statement, Jun 24, 2:42 PM CDT, 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
242 PM CDT FRI JUN 24 2011

ALZ009-010-242015-
DE KALB-JACKSON-
242 PM CDT FRI JUN 24 2011

...SIGNIFICANT WEATHER ADVISORY FOR DEKALB AND JACKSON COUNTIES UNTIL
315 PM CDT...

AT 242 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTER OF STRONG THUNDERSTORMS CENTERED NEAR FACKLER...OR 13 MILES
SOUTHWEST OF BRIDGEPORT. THIS CLUSTER OF STORMS WAS MOVING EAST AT
35 MPH.

PENNY SIZE HAIL...WIND GUSTS UP TO 50 MPH...AND DEADLY CLOUD TO
GROUND LIGHTNING STRIKES ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  FABIUS.
  ROSALIE...BRIDGEPORT.
  FLAT ROCK...BEATY CROSSROADS.
  HIGDON...IDER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY
EVENING FOR NORTHERN ALABAMA AND CENTRAL TENNESSEE.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 3460 8560 3469 8630 3494 8629 3492 8627
      3493 8624 3496 8629 3498 8629 3498 8560
      3494 8559
TIME...MOT...LOC 1942Z 273DEG 32KT 3483 8588

70/DD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 12:28 PM CDT	Special Weather Statement	HUN	Limestone	32 min
Jun 24, 12:35 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Limestone, Morgan	40 min
Jun 24, 12:53 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale, Lawrence	52 min
Jun 24, 1:21 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lawrence, Limestone, Morgan	39 min
Jun 24, 1:34 PM CDT	Special Weather Statement	HUN	Jackson	41 min
Jun 24, 1:43 PM CDT	Severe Thunderstorm Warning	HUN	Madison	47 min
Jun 24, 1:47 PM CDT	Severe Thunderstorm Warning	HUN	Jackson	43 min
Jun 24, 2:00 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Limestone, Madison, Morgan	45 min
Jun 24, 2:15 PM CDT	Severe Thunderstorm Warning	HUN	Morgan	30 min
Jun 24, 2:22 PM CDT	Special Weather Statement	HUN	Colbert, Franklin, Lawrence	23 min
Jun 24, 2:31 PM CDT	Severe Thunderstorm Warning	HUN	Cullman, Jackson, Madison, Marshall, Morgan	44 min
Jun 24, 2:40 PM CDT	Special Weather Statement	HUN	Franklin	35 min
Jun 24, 2:42 PM CDT	Special Weather Statement	HUN	Jackson	33 min
Jun 24, 2:59 PM CDT	Special Weather Statement	HUN	Lawrence	46 min
Jun 24, 3:11 PM CDT	Tornado Warning	HUN	Jackson	18 min
Jun 24, 3:18 PM CDT	Special Weather Statement	HUN	Franklin	27 min
Jun 24, 3:22 PM CDT	Severe Thunderstorm Warning	HUN	DeKalb, Jackson, Marshall	38 min
Jun 24, 3:36 PM CDT	Special Weather Statement	HUN	Lawrence	39 min
Jun 24, 3:39 PM CDT	Special Weather Statement	HUN	Morgan	36 min
Jun 24, 3:46 PM CDT	Severe Thunderstorm Warning	HUN	Cullman, Morgan	29 min
Jun 24, 4:07 PM CDT	Special Weather Statement	HUN	Cullman	23 min
Jun 24, 4:15 PM CDT	Special Weather Statement	HUN	Morgan	45 min
Jun 24, 4:17 PM CDT	Special Weather Statement	HUN	Marshall	28 min
Jun 24, 4:24 PM CDT	Severe Thunderstorm Warning	HUN	Cullman	36 min
Jun 24, 4:29 PM CDT	Special Weather Statement	HUN	Franklin	31 min
Jun 24, 4:33 PM CDT	Severe Thunderstorm Warning	HUN	Marshall	27 min
Jun 24, 4:59 PM CDT	Special Weather Statement	HUN	Marshall	31 min
Jun 24, 5:00 PM CDT	Special Weather Statement	HUN	Cullman	30 min
Jun 24, 12:11 PM CDT	Special Weather Statement	HUN	Franklin	34 min
Jun 24, 12:39 PM CDT	Severe Thunderstorm Warning	HUN	Franklin, Moore	51 min
Jun 24, 1:06 PM CDT	Special Weather Statement	HUN	Moore	24 min
Jun 24, 1:39 PM CDT	Severe Thunderstorm Warning	HUN	Franklin, Lincoln, Moore	51 min
Jun 24, 2:27 PM CDT	Severe Thunderstorm Warning	HUN	Franklin	33 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2011 Every severe thunderstorm warning in 2011

Sources

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