Alert archive / Alabama / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 247, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 16, 2010, 5:42 PM CDT for St. Clair County, Talladega County, Alabama. It was in force for 33 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 16, 2010, 5:42 PM CDT (22:42 UTC)
- Expired
- Jul 16, 2010, 6:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties St. Clair County, AL, Talladega County, AL
The radar
The Birmingham radar (KBMX), 65 km from the middle of the area, began a volume at 22:42 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
Nashville Metro, TN (KBNA), launched 12:00Z, 10.7 hours before the alert went out and 289 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
- 3144 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 639 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 24 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 Jul 16, 2:57 PM CDT, 2 hours 45 minutes earlier.
Area forecast discussion, Jul 16, 2:57 PM CDT, 2 hours 45 minutes before
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</html>Hazardous weather outlook, Jul 16, 12:42 PM CDT, 5 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 1242 PM CDT FRI JUL 16 2010 ALZ011>015-017>050-170200- 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- 1242 PM CDT FRI JUL 16 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...THIS AFTERNOON AND TONIGHT. STRONG THUNDERSTORMS ARE LIKELY THROUGH 8 PM ACROSS CENTRAL ALABAMA. THE MAIN THREATS WILL BE WIND GUSTS UP TO 50 MPH...FREQUENT LIGHTNING...AND HEAVY RAINFALL RESULTING IN LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT ANTICIPATED AT THIS TIME.
In the hours before
Special weather statement, Jul 16, 4:27 PM CDT, 1 hour 15 minutes before
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</html>Special weather statement, Jul 16, 4:38 PM CDT, 1 hour 4 minutes before
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</html>Local storm report, Jul 16, 4:40 PM CDT, 1 hour 2 minutes before
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</html>Special weather statement, Jul 16, 5:22 PM CDT, 20 minutes before
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</html>Special weather statement, Jul 16, 5:31 PM CDT, 11 minutes before
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</html>Special weather statement, Jul 16, 5:31 PM CDT, 11 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 |
|---|---|---|---|---|
| Jul 15, 7:08 PM CDT | Areal Flood Advisory | BMX | Bibb, Jefferson, Shelby | 2 hr |
| Jul 16, 1:01 PM CDT | Severe Thunderstorm Warning | BMX | Lamar, Marion | 59 min |
| Jul 16, 3:36 PM CDT | Areal Flood Advisory | BMX | Sumter | 114 min |
| Jul 16, 3:44 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 46 min |
| Jul 16, 4:24 PM CDT | Areal Flood Advisory | BMX | Tuscaloosa | 66 min |
| Jul 16, 4:27 PM CDT | Areal Flood Advisory | BMX | Greene, Hale | 2 hr |
| Jul 16, 4:35 PM CDT | Areal Flood Advisory | BMX | Jefferson | 115 min |
| Jul 16, 5:34 PM CDT | Areal Flood Advisory | BMX | Lowndes | 116 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.