Alert archive / Alabama / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 251, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 25, 2010, 4:33 PM CDT for Marion County, Walker County, Winston County, Alabama. It was in force for 42 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
- Jul 25, 2010, 4:33 PM CDT (21:33 UTC)
- Expired
- Jul 25, 2010, 5:15 PM CDT
- In force
- 42 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Marion County, AL, Walker County, AL, Winston County, AL
The radar
The Columbus AFB radar (KGWX), 76 km from the middle of the area, began a volume at 21:36 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 nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 9.6 hours before the alert went out and 240 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.
- Mixed-layer CAPE
- 1809 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1128 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -56 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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 Jul 25, 3:19 PM CDT, 1 hour 14 minutes earlier.
Area forecast discussion, Jul 25, 3:19 PM CDT, 1 hour 14 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BIRMINGHAM AL 319 PM CDT SUN JUL 25 2010 .DISCUSSION...WITH REMNANTS OF BONNIE BRUSHING BY THIS AFTERNOON AND EVENING...CONDITIONS WILL RETURN MORE TOWARDS NORMAL FOR THE BEGINNING OF THE WORK WEEK. TEMPERATURES WILL THEN BEGIN TO CLIMB THROUGH THE REMAINDER OF THE WEEK. NOTHING BETTER THAN HIT OR MISS SHOWERS AND THUNDERSTORMS CAN BE EXPECTED THROUGH THE PERIOD. && .SHORT TERM...TONIGHT THROUGH TUESDAY. NOT MUCH IN THE WAY OF EXCITEMENT ON THE WEATHER MAPS THROUGH THE PERIOD ONCE THE SURGE OF MOISTURE ASSOCIATED WITH REMNANTS OF BONNIE MOVE OUT OF THE AREA. A WEAKNESS IN THE PRESSURE FIELD WILL REMAIN OVER CENTRAL ALABAMA WITH VERY MOIST ATMOSPHERE TOMORROW... WARRANTING CHANCE POPS IN THE LATE MORNING AND AFTERNOON HOURS. WITH THE UPPER LEVEL RIDGE SLIGHTLY WEAKENED... TEMPERATURES WILL BE AS CLOSE TO NORMAL AS THEY HAVE BEEN IN QUITE SOME TIME. BY TUESDAY...RIDGE WILL BEGIN GRADUAL PROCESS OF BUILDING/ RETROGRADING WESTWARD BY TUESDAY...AND BUILDING HIGH PRESSURE ALONG THE GULF COAST SHOULD DIMINISH RAIN CHANCES TO CLIMO AT BEST. .LONG TERM...WEDNESDAY THROUGH SUNDAY. MODELS IN GOOD AGREEMENT THROUGH THE PERIOD AS RIDGE CONTINUES TO BUILD WESTWARD. WITH RISING HEIGHTS AND LOW LEVEL THICKNESSES... EXPECT TEMPS TO CREEP BACK UP THROUGH THE MID 90S TO THE UPPER 90S BY THE END OF THE WEEK. RIGHT NOW LOOKS LIKE THE RIDGE AXIS WILL BE CENTERED OVER EAST TEXAS...WHICH MAY BE FAR ENOUGH WESTWARD TO EVENTUALLY ALLOW SOME INFLUENCE FROM THE MAIN STORM TRACK WELL TO THE NORTH TO AFFECT FAR NORTHERN PORTIONS OF THE AREA LATE IN THE WEEK. WILL NOT GO INTO TRIPLE DIGIT FORECASTS RIGHT NOW...BUT IT SURE LOOKS TO BE HOT AGAIN NEXT WEEKEND BASED ON CURRENT PACKAGE. WHETHER OR NOT THE TEMPS MAKE INTO TRIPLE DIGITS...ANOTHER ROUND OF VERY HOT AND HUMID WEATHER IS IN STORE. TIP OF THE HAT TO THE NIGHT SHIFT FOR NOT BITING ON COOLER TEMPS AND LEANING ON PERSISTENCE AS AN EFFECTIVE FORECAST TOOL. && .AVIATION...18Z TAF DISCUSSION. OVERALL TERMINAL FORECASTS HAVE A VFR FEEL EXCEPT FOR SOME PATCHY FOG DEVELOPMENT BY EARLY MORNING. CONVECTION A BIT SLOW AT INITIATION EARLY THIS AFTERNOON. A WEAK TROUGH REMAINS NEAR THE INTERSTATE 20 CORRIDOR WHICH SHOULD AIDE IN FOCUSING SOME DEVELOPMENT LATER THIS AFTERNOON. THE REMNANT LOW OF BONNIE WAS USHERING IN A MORE SOUTHERLY FLOW JUST SOUTH OF THE AREA. CONVECTION WAS ALSO FORMING IN THIS AREA AND WILL EVENTUALLY WORK ITS WAY INTO PARTS OF CENTRAL ALABAMA. SURFACE HIGH PRESSURE WAS NOSING INTO SOUTHEAST ALABAMA AND THE CONVECTION FORECAST FOR MGM/TOI A BIT TRICKY. AT THIS TIME...MENTIONED VCSH AND CB AFTER 19Z THROUGH 01Z. HOW FAR EAST ANYTHING DEVELOPS REMAINS PROBLEMATIC AND WILL UPDATE THESE LOCATIONS IF NECESSARY FOR TIMING AND COVERAGE. THE NORTHERN SITES HAVE A TROUGH IN THE VICINITY AND THE CONVECTION SCHEDULED TO MOVE INTO SOUTHWESTERN AREAS LATER. MENTIONED VCTS AND CB AT BHM/TCL AFTER 20-21Z THROUGH 01Z AND ONLY CB AT EET/ANB. THE LATEST MODEL RUNS DO NOT INDICATE ANY MORE FOG THREAT THAN PREVIOUS NIGHTS. IT LOOKS AS IF THE RAINFALL MAY BE THE DETERMINING FACTOR...OTHER THAN LOCATION. MENTIONED PREVAILING AND TEMPO MVFR VIS BASED ON RAINFALL EXPECTATIONS AND LOCAL FLAVOR. WINDS GENERALLY SOUTH TO SOUTHWEST TODAY AND MORE VARIABLE TOMORROW AT LESS THAN 10KTS. NOTICE...KEET TAF WILL HAVE (AMD LTD TO VIS WIND AND WX) AMENDED TO THE END OF THE FORECAST THROUGH THE END OF 2010. THE CEILOMETER DATA WILL BE GOING THROUGH NUMEROUS TESTS AND MONITORED FOR ACCURACY. 75 && .PRELIMINARY POINT TEMPS/POPS... GADSDEN 74 92 73 93 72 / 40 50 30 30 10 ANNISTON 75 92 74 93 73 / 30 50 30 30 10 BIRMINGHAM 77 93 75 94 75 / 30 50 30 30 10 TUSCALOOSA 76 95 75 95 74 / 30 40 20 20 10 CALERA 75 93 75 93 74 / 30 50 20 20 10 AUBURN 75 92 73 91 74 / 20 40 10 20 10 MONTGOMERY 75 95 74 95 74 / 20 40 20 20 10 TROY 73 93 73 93 73 / 20 50 10 20 10 && .BMX WATCHES/WARNINGS/ADVISORIES... NONE. && 75/02/75
Hazardous weather outlook, Jul 25, 12:01 PM CDT, 4 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 1201 PM CDT SUN JUL 25 2010 ALZ011>015-017>050-261130- AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE- CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE- JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY- PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA- TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON- 1201 PM CDT SUN JUL 25 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...THIS AFTERNOON AND TONIGHT. A HEAT ADVISORY IS IN EFFECT FOR ALL OF CENTRAL ALABAMA THROUGH THIS AFTERNOON. HEAT INDICES WILL BE AROUND 105 DEGREES. SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS CENTRAL ALABAMA THIS AFTERNOON AND THIS EVENING. THE HIGH MOISTURE CONTENT IN THE ATMOSPHERE WILL LEAD TO LOCALIZED HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT EXPECTED AT THIS TIME. 75
In the hours before
Special weather statement, Jul 25, 2:59 PM CDT, 1 hour 34 minutes before
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</html>Local storm report, Jul 25, 3:05 PM CDT, 1 hour 28 minutes before
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</html>Special weather statement, Jul 25, 3:09 PM CDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 309 PM CDT SUN JUL 25 2010 ALZ035-252115- CHILTON AL- 309 PM CDT SUN JUL 25 2010 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN CHILTON COUNTY UNTIL 415 PM CDT... AT 303 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG THUNDERSTORM NEAR VERBENA...OR 9 MILES SOUTHEAST OF CLANTON...MOVING NORTH AT 5 MPH. WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... CLANTON... GAP OF THE MOUNTAIN... COOPER... MITCHELL DAM... I 65 REST AREA... 08
Special weather statement, Jul 25, 3:31 PM CDT, 1 hour 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 331 PM CDT SUN JUL 25 2010 ALZ041-252115- AUTAUGA AL- 331 PM CDT SUN JUL 25 2010 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN AUTAUGA COUNTY UNTIL 415 PM CDT... AT 329 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG THUNDERSTORM 5 SOUTHEAST OF NEW PROSPECT...MOVING NORTH AT 10 MPH. PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... MARBURY... NEW PROSPECT... 08
Special weather statement, Jul 25, 4:29 PM CDT, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 429 PM CDT SUN JUL 25 2010 ALZ011-014-015-252215- MARION AL-WALKER AL-WINSTON AL- 429 PM CDT SUN JUL 25 2010 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MARION... SOUTHWESTERN WINSTON AND NORTHWESTERN WALKER COUNTIES UNTIL 515 PM CDT... AT 427 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG THUNDERSTORM NEAR ELDRIDGE...OR 6 MILES NORTHWEST OF CARBON HILL... MOVING NORTH AT 5 MPH. PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... LYNN... NAUVOO... ASHBANK... LAKE BUTTAHATCHEE... NATURAL BRIDGE... 08
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:11 PM CDT | Areal Flood Advisory | BMX | Walker, Winston | 64 min |
| Jul 25, 5:42 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 48 min |
| Jul 25, 6:11 PM CDT | Areal Flood Advisory | BMX | Lamar | 2 hr |
Nearby
Severe Thunderstorm Warnings in Alabama, 2010Every severe thunderstorm warning in 2010
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.