Alert archive / Alabama / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 170, NWS Birmingham, AL

April 11, 2008Elmore County, Montgomery County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 11, 2008, 10:34 PM CDT for Elmore County, Montgomery County, Alabama. It was in force for 41 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: Apr 11, 2008, 10:34 PM CDT (03:34 UTC)
Expired: Apr 11, 2008, 11:15 PM CDT
In force: 41 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Elmore County, AL, Montgomery County, AL

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 11, 3:07 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 3.6 hours before the alert went out and 103 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: 635 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 623 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -86 m²/s²
0-3 km storm-relative helicity: -110 m²/s²
Significant tornado parameter: -0.4
Supercell composite: -2.4

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 Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 11, 9:30 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Apr 11, 9:30 PM CDT, 1 hour 4 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, Apr 11, 9:46 PM CDT, 48 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>

In the hours before

Special weather statement, Apr 11, 8:10 PM CDT, 2 hours 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>

Special weather statement, Apr 11, 8:35 PM CDT, 1 hour 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
835 PM CDT FRI APR 11 2008

ALZ039-120215-
MARENGO-
835 PM CDT FRI APR 11 2008

...SIGNIFICANT WEATHER ALERT FOR MARENGO COUNTY UNTIL 915 PM CDT...

AT 833 PM CDT...THE NATIONAL WEATHER SERVICE IS TRACKING A STRONG
THUNDERSTORM NEAR MYRTLEWOOD...OR 9 MILES SOUTHWEST OF LINDEN...
MOVING EAST AT 35 MPH.

PEA SIZE HAIL IS EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  HALF ACRE.
  MILLER.
  CALVARY.
  PROVIDENCE.
  THOMASTON.
  CONSUL.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY
EVENING FOR SOUTHERN ALABAMA.

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

16/JRA

Local storm report, Apr 11, 8:58 PM CDT, 1 hour 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
858 PM CDT FRI APR 11 2008

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

0825 PM     HAIL             JACKSONS GAP           32.88N 85.82W
04/11/2008  E0.50 INCH       TALLAPOOSA         AL   EMERGENCY MNGR

&&

MROSE

Special weather statement, Apr 11, 9:08 PM CDT, 1 hour 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
908 PM CDT FRI APR 11 2008

ALZ033-040-120300-
DALLAS-PERRY-
908 PM CDT FRI APR 11 2008

...SIGNIFICANT WEATHER ALERT FOR DALLAS AND PERRY COUNTIES UNTIL 1000
PM CDT...

AT 907 PM CDT...THE NATIONAL WEATHER SERVICE IS TRACKING A STRONG
THUNDERSTORM 5 MILES NORTHWEST OF SAFFORD...OR 9 MILES SOUTH OF
UNIONTOWN...MOVING NORTHEAST AT 35 MPH.

PEA SIZE HAIL AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  CENTRAL MILLS.
  BOGUE CHITTO.
  MARION JUNCTION.
  HAZEN.
  SKYHARBOR AIRPORT.
  POTTER STATION.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
FRIDAY EVENING FOR SOUTHERN ALABAMA.

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

16/JRA

Local storm report, Apr 11, 9:42 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BIRMINGHAM AL
942 PM CDT FRI APR 11 2008

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

0658 PM     TSTM WND GST     THORSBY                 32.92N 86.71W
04/11/2008  E48.00 MPH       CHILTON            AL   NWS EMPLOYEE

            DS

0615 PM     HEAVY RAIN       N CALERA                33.10N 86.75W
04/11/2008  E0.00 INCH       SHELBY             AL   ASOS

            OVER SHELBY COUNTY AIRPORT

0518 PM     FLASH FLOOD      BIRMINGHAM              33.53N 86.80W
04/11/2008                   JEFFERSON          AL   AMATEUR RADIO

            TARRANT CITY 18-24 INCHES ON ROAD

0452 PM     FUNNEL CLOUD     BIRMINGHAM              33.53N 86.80W
04/11/2008                   JEFFERSON          AL   AMATEUR RADIO

            UNCONFIRMED TORNADO

0452 PM     HAIL             TRUSSVILLE              33.64N 86.59W
04/11/2008  E2.50 INCH       JEFFERSON          AL   AMATEUR RADIO

0442 PM     HAIL             4 NE BIRMINGHAM         33.57N 86.75W
04/11/2008  E2.75 INCH       JEFFERSON          AL   AMATEUR RADIO

            I20 AND CRESTWOOD BLVD

0440 PM     TSTM WND DMG     PELHAM                  33.30N 86.79W
04/11/2008                   SHELBY             AL   AMATEUR RADIO

            TREES AND POWER LINES DOWN, ROYAL OAKS SD.

0436 PM     HAIL             CAHABA HEIGHTS          33.46N 86.73W
04/11/2008  E1.75 INCH       JEFFERSON          AL   TRAINED SPOTTER

            I-59 AND US 280

0436 PM     HAIL             CAHABA HEIGHTS          33.46N 86.73W
04/11/2008  E1.75 INCH       JEFFERSON          AL   TRAINED SPOTTER

0436 PM     HAIL             CAHABA HEIGHTS          33.46N 86.73W
04/11/2008  E1.75 INCH       JEFFERSON          AL   TRAINED SPOTTER

            NUMEROUS REPORTS

0431 PM     HAIL             BIRMINGHAM              33.53N 86.80W
04/11/2008  E1.75 INCH       JEFFERSON          AL   AMATEUR RADIO

0430 PM     HAIL             HOOVER                  33.39N 86.82W
04/11/2008  E1.00 INCH       JEFFERSON          AL   PUBLIC

0430 PM     HAIL             BIRMINGHAM              33.53N 86.80W
04/11/2008  E1.00 INCH       JEFFERSON          AL   AMATEUR RADIO

            HWY 150 AND LORNA ROAD

0430 PM     HAIL             HOOVER                  33.38N 86.82W
04/11/2008  E1.75 INCH       JEFFERSON          AL   AMATEUR RADIO

0426 PM     HAIL             HOOVER                  33.38N 86.82W
04/11/2008  E1.00 INCH       JEFFERSON          AL   AMATEUR RADIO

            CORRECTED

0423 PM     TORNADO          3 W HUEYTOWN            33.44N 87.05W
04/11/2008                   JEFFERSON          AL   PUBLIC

            UNCONFIRMED, TAYLORS FAIRY ROAD UPDATED 1742, DISTANCE
            OBSERVANCE OF TREE TOP DAMAGE OCCURRENCE.

0416 PM     TSTM WND GST     GADSDEN                 34.01N 86.01W
04/11/2008  E86.00 MPH       ETOWAH             AL   EMERGENCY MNGR

            TREES AND POWER LINES DOWN, USDA BLDG. TREE DOWN ON
            HOME.WINDS RECORDED AT EOC.

0415 PM     TSTM WND DMG     GADSDEN                 34.01N 86.01W
04/11/2008                   ETOWAH             AL   TRAINED SPOTTER

            AL 77 AND BROOK AVE TREES UPROOTED AND CARS BLOWN INTO
            FENCE.

0353 PM     TORNADO          CORDOVA                 33.76N 87.19W
04/11/2008                   WALKER             AL   LAW ENFORCEMENT

            ON THE GROUND NOW, UNCONFIRMED...CORRECTED

0350 PM     HAIL             SAMANTHA                33.41N 87.58W
04/11/2008  E1.75 INCH       TUSCALOOSA         AL   EMERGENCY MNGR

            IN PROGRESS

0345 PM     TSTM WND DMG     PINEY WOODS             33.82N 85.43W
04/11/2008                   CLEBURNE           AL   EMERGENCY MNGR

            HEAVY BARN DAMAGE

0335 PM     HAIL             N SAMANTHA              33.41N 87.58W
04/11/2008  E0.88 INCH       TUSCALOOSA         AL   TRAINED SPOTTER

            PRUIT LOOP ROAD, HWY 171

0330 PM     HAIL             8 S JASPER              33.74N 87.27W
04/11/2008  E0.75 INCH       WALKER             AL   PUBLIC

0330 PM     LIGHTNING        PARRISH                 33.73N 87.28W
04/11/2008                   WALKER             AL   EMERGENCY MNGR

            STRUCTURE FIRE DUE TO LIGHTNING

0322 PM     HAIL             5 S GREENSBORO          32.63N 87.59W
04/11/2008  E0.50 INCH       HALE               AL   EMERGENCY MNGR

0318 PM     HAIL             N CURRY                 33.95N 87.21W
04/11/2008  E0.88 INCH       WALKER             AL   TRAINED SPOTTER

0258 PM     HAIL             2 NNE JASPER            33.88N 87.26W
04/11/2008  E2.75 INCH       WALKER             AL   AMATEUR RADIO

            NEAR CURRY

0235 PM     HAIL             3 N CARBON HILL         33.94N 87.53W
04/11/2008  E0.88 INCH       WALKER             AL   FIRE DEPT/RESCUE

            E70 WIND

0226 PM     HAIL             1 N CARBON HILL         33.91N 87.53W
04/11/2008  E0.88 INCH       WALKER             AL   FIRE DEPT/RESCUE

            E70 MPH WIND...CORRECTED FOR SOURCE AND TIME.

0226 PM     FUNNEL CLOUD     1 N CARBON HILL         33.91N 87.53W
04/11/2008                   WALKER             AL   FIRE DEPT/RESCUE

            BETWEEN NAVUOO AND CARBON HILL

0150 PM     TSTM WND DMG     1 S HAMILTON            34.13N 87.98W
04/11/2008                   MARION             AL   EMERGENCY MNGR

            AT AIRPORT...COR...WIND NOT HAIL

0149 PM     HAIL             1 N VERNON              33.77N 88.11W
04/11/2008  E0.75 INCH       LAMAR              AL   EMERGENCY MNGR

            NEAR AIRPORT

0115 PM     TSTM WND DMG     5 W SULLIGENT           33.89N 88.22W
04/11/2008                   LAMAR              AL   EMERGENCY MNGR

            ON AL/MS STATE LINE TREES DOWN.

0100 PM     TSTM WND DMG     3 S DOUBLE SPRINGS      34.10N 87.40W
04/11/2008                   WINSTON            AL   STORM CHASER

            TREES DOWN HWY 195

&&

10.5

Special weather statement, Apr 11, 9:54 PM CDT, 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
954 PM CDT FRI APR 11 2008

ALZ041-042-120345-
AUTAUGA-LOWNDES-
954 PM CDT FRI APR 11 2008

...SIGNIFICANT WEATHER ALERT FOR AUTAUGA AND LOWNDES COUNTIES UNTIL
1045 PM CDT...

AT 950 PM CDT...THE NATIONAL WEATHER SERVICE IS TRACKING A STRONG
THUNDERSTORM NEAR SELMONT...WEST SELMONT...MOVING EAST AT 45 MPH.

PEA SIZE HAIL AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  ROBERT F. HENRY LOCK AND DAM.
  MULBERRY.
  AUTAUGAVILLE.
  VIDE JUNCTION.
  BOOTH.
  PRATTVILLE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
FRIDAY EVENING FOR SOUTHERN ALABAMA.

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

16/JRA

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 7:10 PM CDT	Tornado Warning	BMX	Chilton, Coosa	35 min
Apr 11, 7:15 PM CDT	Tornado Warning	BMX	Clay, Randolph	45 min
Apr 11, 8:18 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	26 min
Apr 11, 10:18 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Lowndes	27 min
Apr 12, 1:29 AM CDT	Severe Thunderstorm Warning	BMX	Chilton, Coosa	31 min
Apr 12, 1:40 AM CDT	Severe Thunderstorm Warning	BMX	Chilton, Coosa, Shelby, Talladega	35 min
Apr 12, 1:57 AM CDT	Severe Thunderstorm Warning	BMX	Talladega	11 min
Apr 12, 2:04 AM CDT	Severe Thunderstorm Warning	BMX	Clay, Cleburne, Talladega	26 min
Apr 12, 2:32 AM CDT	Severe Thunderstorm Warning	BMX	Clay, Coosa, Talladega	16 min
Apr 12, 5:00 AM CDT	Freeze Watch	BMX	Blount, Calhoun, Cherokee, Clay, Cleburne, Etowah and 12 more	47 hr
Apr 12, 5:00 AM CDT	Freeze Watch	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	56 hr
Apr 12, 5:00 AM CDT	Lake Wind Advisory	BMX	Bibb, Blount, Calhoun, Chambers, Cherokee, Chilton and 22 more	13 hr
Apr 12, 6:57 PM CDT	Lake Wind Advisory	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	25 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2008 Every severe thunderstorm warning in 2008

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.