Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 89, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 31, 2012, 5:59 PM CDT for Choctaw County, Alabama. It was in force for 46 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
- May 31, 2012, 5:59 PM CDT (22:59 UTC)
- Expired
- May 31, 2012, 6:45 PM CDT
- In force
- 46 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Choctaw County, AL
The radar
The Birmingham radar (KBMX), 159 km from the middle of the area, began a volume at 22:59 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, 11.0 hours before the alert went out and 159 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
- 12 J/kg
- Mixed-layer CIN
- -234 J/kg
- Mixed-layer LCL
- 1911 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
925
WUUS54 KMOB 312259
SVRMOB
ALC023-312345-
/O.NEW.KMOB.SV.W.0089.120531T2259Z-120531T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
559 PM CDT THU MAY 31 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 645 PM CDT
* AT 559 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
WINDS OVER 60 MPH WAS LOCATED 11 MILES NORTHEAST OF QUITMAN...OR 12
MILES EAST OF STONEWALL...AND MOVING EAST AT 45 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
LISMAN AROUND 625 PM CDT...
PENNINGTON AROUND 635 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3229 8792 3228 8794 3228 8795 3230 8795
3230 8798 3228 8801 3226 8800 3218 8800
3212 8804 3206 8845 3228 8843 3231 8842
3231 8793
TIME...MOT...LOC 2259Z 260DEG 39KT 3217 8853
$$2 follow-up statements
860
WWUS54 KMOB 312322
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
622 PM CDT THU MAY 31 2012
ALC023-312345-
/O.CON.KMOB.SV.W.0089.000000T0000Z-120531T2345Z/
CHOCTAW AL-
622 PM CDT THU MAY 31 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHERN CHOCTAW COUNTY...
AT 621 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
WINDS OVER 60 MPH WAS LOCATED 9 MILES NORTHWEST OF BUTLER...OR 7
MILES SOUTHWEST OF LISMAN...MOVING NORTHEAST AT 30 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3229 8792 3228 8794 3228 8795 3230 8795
3230 8798 3228 8801 3226 8800 3218 8800
3212 8804 3206 8845 3228 8843 3231 8842
3231 8793
TIME...MOT...LOC 2321Z 236DEG 27KT 3220 8829
$$479
WWUS54 KMOB 312345
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
645 PM CDT THU MAY 31 2012
ALC023-312354-
/O.EXP.KMOB.SV.W.0089.000000T0000Z-120531T2345Z/
CHOCTAW AL-
645 PM CDT THU MAY 31 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
NORTHERN CHOCTAW COUNTY...
AT 645 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHERN
CHOCTAW COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE SEVERE
THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 645 PM CDT.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
LAT...LON 3229 8792 3228 8794 3228 8795 3230 8795
3230 8798 3228 8801 3226 8800 3218 8800
3212 8804 3206 8845 3228 8843 3231 8842
3231 8793
TIME...MOT...LOC 2344Z 236DEG 27KT 3230 8812
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:15 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 60 min |
| May 31, 3:02 PM CDT | Severe Thunderstorm Warning | MOB | Butler | 58 min |
| May 31, 4:40 PM CDT | Severe Thunderstorm Warning | MOB | Washington | 50 min |
| May 31, 5:05 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Washington | 40 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2012Every severe thunderstorm warning 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.