Alert archive / Alabama / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 271, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 15, 2010, 7:52 PM CDT for Greene County, Pickens County, Sumter County, Alabama. It was in force for 53 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
- Aug 15, 2010, 7:52 PM CDT (00:52 UTC)
- Expired
- Aug 15, 2010, 8:45 PM CDT
- In force
- 53 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Greene County, AL, Pickens County, AL, Sumter County, AL
The radar
The Columbus AFB radar (KGWX), 112 km from the middle of the area, began a volume at 00:52 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
Jackson, MS (KJAN), launched 00:00Z, 0.9 hours before the alert went out and 198 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
- 2492 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1605 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 15, 6:50 PM CDT, 1 hour 2 minutes earlier.
Area forecast discussion, Aug 15, 6:50 PM CDT, 1 hour 2 minutes before
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</html>Hazardous weather outlook, Aug 15, 11:58 AM CDT, 7 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 1158 AM CDT SUN AUG 15 2010 ALZ011>015-017>050-161130- 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- 1158 AM CDT SUN AUG 15 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...THIS AFTERNOON AND TONIGHT. THE COMBINATION OF HIGH TEMPERATURES AND HUMIDITY WILL LEAD TO HEAT INDEX VALUES OF 105 TO 110 DEGREES THIS AFTERNOON...FOR AREAS THAT ARE GENERALLY WEST OF INTERSTATE 65 AND NORTH OF INTERSTATE 20. LOCALLY HEAVY RAINFALL WILL BE POSSIBLE AGAIN WITH ANY SHOWERS AND THUNDERSTORMS THAT DEVELOP ACROSS CENTRAL ALABAMA. ONE TO TWO INCHES OF RAIN MAY OCCUR IN A SHORT PERIOD OF TIME POTENTIALLY PRODUCING MINOR FLOODING. STRONG STORMS ARE POSSIBLE FROM NOON UNTIL 10 PM...GENERALLY NEAR AND NORTH OF INTERSTATE 59. THE MAIN THREAT WILL BE WIND GUSTS TO 50 MPH AND PEA SIZE HAIL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. HEAT INDICES WILL APPROACH 105 DEGREES ON MONDAY AFTERNOON WEST OF INTERSTATE 65. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT EXPECTED AT THIS TIME.
In the hours before
Local storm report, Aug 15, 7:17 PM CDT, 35 minutes before
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</html>Local storm report, Aug 15, 7:45 PM CDT, 7 minutes before
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</html>Local storm report, Aug 15, 7:50 PM CDT, 2 minutes before
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</html>Local storm report, Aug 15, 7:52 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 7:11 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Lamar, Pickens | 49 min |
| Aug 15, 7:27 PM CDT | Areal Flood Advisory | BMX | Lamar | 2 hr |
| Aug 15, 8:45 PM CDT | Severe Thunderstorm Warning | BMX | Greene, Pickens, Sumter | 75 min |
| Aug 16, 6:24 PM CDT | Areal Flood Advisory | BMX | Lamar | 111 min |
| Aug 16, 6:34 PM CDT | Areal Flood Advisory | BMX | Marion | 116 min |
| Aug 16, 6:43 PM CDT | Flash Flood Warning | BMX | Lamar, Marion | 3 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.