Alert archive / Alabama / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 263, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Aug 5, 2010, 6:34 PM CDT for Marengo County, Perry County, Alabama. It was in force for 26 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 5, 2010, 6:34 PM CDT (23:34 UTC)
- Expired
- Aug 5, 2010, 7:00 PM CDT
- In force
- 26 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Marengo County, AL, Perry County, AL
The radar
The Birmingham radar (KBMX), 108 km from the middle of the area, began a volume at 23:35 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
Birmingham, AL (KBMX), launched 12:00Z, 11.6 hours before the alert went out and 108 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
- 1520 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 925 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 33 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 5, 6:25 PM CDT, 9 minutes earlier.
Area forecast discussion, Aug 5, 6:25 PM CDT, 9 minutes before
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</html>Hazardous weather outlook, Aug 5, 1:04 PM CDT, 5 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 104 PM CDT THU AUG 5 2010 ALZ011>015-017>050-061805- 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- 104 PM CDT THU AUG 5 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...THIS AFTERNOON AND TONIGHT. AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT FOR ALL OF CENTRAL ALABAMA THROUGH 7 PM CDT. AFTERNOON HIGHS WILL ONCE AGAIN BE IN THE UPPER 90S TO LOWER 100S...WITH HEAT INDICES OF 108 TO 115 DEGREES. STRONG STORMS WILL BE POSSIBLE ACROSS ALL OF CENTRAL ALABAMA THROUGH 9 PM THIS EVENING AS A FRONTAL BOUNDARY SLIDES SOUTHWARD TOWARD THE AREA. THE MAIN THREATS WILL BE WIND GUSTS UP TO 50 MPH AND BRIEF HEAVY RAINFALL. A FEW STORMS COULD REACH SEVERE LIMITS ACROSS NORTH CENTRAL ALABAMA IN CLOSER PROXIMITY TO THE BOUNDARY...WITH DAMAGING WINDS BEING THE MAIN THREAT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. TEMPERATURES ARE EXPECTED TO BE A COUPLE OF DEGREES COOLER ON FRIDAY...BUT STILL HOT...SO A HEAT ADVISORY REMAINS IN EFFECT FOR FRIDAY. HEAT INDICES WILL BE IN THE 105 TO 110 DEGREE RANGE IN MANY LOCATIONS. A FEW STRONG TO SEVERE THUNDERSTORMS WILL ALSO BE POSSIBLE FRIDAY AFTERNOON AND EVENING...ACROSS ALL OF CENTRAL ALABAMA...AS A FRONT PUSHES THROUGH. DAMAGING WINDS...HEAVY DOWNPOURS...AND LOCALIZED FLOODING WILL BE THE MAIN THREATS. STRONG STORMS WILL BE POSSIBLE ON SATURDAY AFTERNOON AS WELL AS THE FRONT WORKS OUT OF THE AREA. THE MAIN THREATS WILL BE WIND GUSTS UP TO 50 MPH AND BRIEF HEAVY RAINFALL. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE NEEDED FRIDAY AFTERNOON AND FRIDAY EVENING.
In the hours before
Special weather statement, Aug 5, 5:34 PM CDT, 1 hour before
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</html>Special weather statement, Aug 5, 5:42 PM CDT, 52 minutes before
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</html>Special weather statement, Aug 5, 5:44 PM CDT, 50 minutes before
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</html>Special weather statement, Aug 5, 5:58 PM CDT, 36 minutes before
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</html>Special weather statement, Aug 5, 6:09 PM CDT, 25 minutes before
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</html>Special weather statement, Aug 5, 6:26 PM CDT, 8 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 4, 7:29 PM CDT | Areal Flood Advisory | BMX | Pickens | 2 hr |
| Aug 4, 7:56 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Cherokee, Cleburne | 49 min |
| Aug 4, 8:07 PM CDT | Flash Flood Warning | BMX | Pickens | 113 min |
| Aug 4, 8:15 PM CDT | Areal Flood Advisory | BMX | Calhoun, Cherokee, Cleburne | 3 hr |
| Aug 5, 2:16 PM CDT | Areal Flood Advisory | BMX | Marion | 119 min |
| Aug 5, 4:45 PM CDT | Areal Flood Advisory | BMX | Lamar | 2 hr |
| Aug 5, 5:19 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 41 min |
| Aug 5, 6:38 PM CDT | Areal Flood Advisory | BMX | Jefferson | 67 min |
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.