Alert archive / Alabama / Special Weather Statements in 2012
Special Weather Statement, NWS Birmingham, AL
NWS Birmingham, AL issued this special weather statement at Jul 11, 2012, 3:04 PM CDT for Bibb County, Shelby 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 outline as issued.
The facts
- Issued
- Jul 11, 2012, 3:04 PM CDT (20:04 UTC)
- Expired
- Jul 11, 2012, 3:45 PM CDT
- In force
- 41 min
- Issued by
- NWS Birmingham, AL
Counties Bibb County, AL, Shelby County, AL
The radar
The Birmingham radar (KBMX), 13 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 12 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
- 164 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 11, 12:29 PM CDT, 2 hours 35 minutes earlier.
Area forecast discussion, Jul 11, 12:29 PM CDT, 2 hours 35 minutes before
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</html>Hazardous weather outlook, Jul 11, 1:02 PM CDT, 2 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 102 PM CDT WED JUL 11 2012 ALZ011>015-017>050-121815- MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN-CHEROKEE- CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR-TALLADEGA- CLAY-RANDOLPH-SUMTER-GREENE-HALE-PERRY-BIBB-CHILTON-COOSA-TALLAPOOSA- CHAMBERS-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY-MACON- BULLOCK-LEE-RUSSELL-PIKE-BARBOUR- 102 PM CDT WED JUL 11 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...TODAY AND TONIGHT. HEAVY RAINFALL FROM SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND TONIGHT COULD CAUSE LOCALIZED FLOODING IN SMALL STREAMS AND LOW LYING AREAS WITH POOR DRAINAGE. THE MAIN AREA OF CONCERN WILL BE NORTH OF INTERSTATE 20 AND WEST OF INTERSTATE 65 BETWEEN 3 PM AND MIDNIGHT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Jul 11, 2:18 PM CDT, 46 minutes before
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</html>Special weather statement, Jul 11, 3:04 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 |
|---|---|---|---|---|
| Jul 10, 7:13 PM CDT | Special Weather Statement | BMX | Blount, Calhoun, Cherokee, Cleburne, Etowah | 62 min |
| Jul 11, 2:18 PM CDT | Special Weather Statement | BMX | Bibb | 42 min |
| Jul 11, 3:49 PM CDT | Special Weather Statement | BMX | Shelby | 41 min |
| Jul 11, 4:11 PM CDT | Special Weather Statement | BMX | Barbour, Bullock, Russell | 49 min |
| Jul 11, 5:00 PM CDT | Special Weather Statement | BMX | Bullock, Lee, Macon, Russell | 60 min |
| Jul 11, 5:56 PM CDT | Special Weather Statement | BMX | Chambers, Elmore, Lee, Macon | 49 min |
| Jul 11, 6:17 PM CDT | Special Weather Statement | BMX | Etowah | 28 min |
| Jul 11, 6:18 PM CDT | Special Weather Statement | BMX | Calhoun | 27 min |
| Jul 11, 6:22 PM CDT | Special Weather Statement | BMX | Elmore | 23 min |
| Jul 11, 6:42 PM CDT | Special Weather Statement | BMX | Elmore | 48 min |
| Jul 11, 6:43 PM CDT | Special Weather Statement | BMX | Elmore | 47 min |
Nearby
Special Weather Statements in Alabama, 2012Every special weather statement in 2012
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.