Alert archive / Alabama / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 199, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 22, 2011, 5:39 PM CDT for Butler County, Alabama. It was in force for 31 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
- Aug 22, 2011, 5:39 PM CDT (22:39 UTC)
- Expired
- Aug 22, 2011, 6:10 PM CDT
- In force
- 31 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Butler County, AL
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 10.7 hours before the alert went out and 172 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
- 2770 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 868 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
621
WUUS54 KMOB 222239
SVRMOB
ALC013-222330-
/O.NEW.KMOB.SV.W.0199.110822T2239Z-110822T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
539 PM CDT MON AUG 22 2011
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL BUTLER COUNTY IN SOUTH CENTRAL ALABAMA...
* UNTIL 630 PM CDT
* AT 537 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 8 MILES SOUTH OF GREENVILLE...OR
4 MILES EAST OF CHAPMAN...AND MOVING SOUTH AT 15 MPH.
* LOCATIONS IMPACTED INCLUDE...
MCKENZIE... GEORGIANA... CHAPMAN...
THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 115 AND 126.
&&
LAT...LON 3153 8679 3180 8675 3180 8654 3163 8650
3153 8650
TIME...MOT...LOC 2239Z 000DEG 14KT 3171 8664
$$1 follow-up statement
749
WWUS54 KMOB 222310
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
610 PM CDT MON AUG 22 2011
ALC013-222319-
/O.CAN.KMOB.SV.W.0199.000000T0000Z-110822T2330Z/
BUTLER AL-
610 PM CDT MON AUG 22 2011
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BUTLER COUNTY IS
CANCELLED...
AT 609 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THE STORM THAT PROMPTED THE WARNING HAS WEAKENED TO BELOW
SEVERE LIMITS...THUS THE WARNING HAS BEEN CANCELLED.
LAT...LON 3153 8679 3180 8675 3180 8654 3163 8650
3153 8650
TIME...MOT...LOC 2309Z 000DEG 14KT 3159 8664
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 7:48 PM CDT | Severe Thunderstorm Warning | MOB | Butler | 42 min |
| Aug 22, 5:04 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Escambia | 25 min |
| Aug 22, 5:20 PM CDT | Severe Thunderstorm Warning | MOB | Monroe | 25 min |
| Aug 22, 5:53 PM CDT | Special Marine Warning | MOB | 52 min | |
| Aug 22, 6:00 PM CDT | Severe Thunderstorm Warning | MOB | Escambia, Monroe | 45 min |
| Aug 22, 6:21 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 16 min |
| Aug 22, 6:36 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 39 min |
| Aug 22, 6:54 PM CDT | Special Marine Warning | MOB | 51 min | |
| Aug 22, 6:55 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 38 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2011Every severe thunderstorm warning in 2011
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.