Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 182, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 16, 2012, 1:36 PM CDT for Choctaw County, Alabama. It was in force for 22 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 16, 2012, 1:36 PM CDT (18:36 UTC)
- Expired
- Aug 16, 2012, 1:58 PM CDT
- In force
- 22 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Choctaw County, AL
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 6.6 hours before the alert went out and 188 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
- 2430 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 902 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- -58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
921
WUUS54 KMOB 161836
SVRMOB
ALC023-161915-
/O.NEW.KMOB.SV.W.0182.120816T1836Z-120816T1915Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
136 PM CDT THU AUG 16 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 215 PM CDT
* AT 135 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
WINDS OVER 60 MPH WAS LOCATED 14 MILES SOUTH OF BUTLER...OR NEAR
TOXEY...AND MOVING EAST AT 20 MPH.
* LOCATIONS IMPACTED INCLUDE...
TOXEY... NEEDHAM... GILBERTOWN...
LAT...LON 3200 8807 3196 8807 3196 8810 3195 8812
3192 8809 3193 8807 3192 8807 3190 8813
3187 8813 3182 8818 3178 8816 3181 8841
3199 8840 3201 8808
TIME...MOT...LOC 1837Z 273DEG 19KT 3190 8829
$$1 follow-up statement
616
WWUS54 KMOB 161858
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
158 PM CDT THU AUG 16 2012
ALC023-161908-
/O.CAN.KMOB.SV.W.0182.000000T0000Z-120816T1915Z/
CHOCTAW AL-
158 PM CDT THU AUG 16 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR SOUTHERN
CHOCTAW COUNTY...
AT 154 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHERN
CHOCTAW COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE SEVERE
THUNDERSTORM WARNING HAS BEEN CANCELLED.
LAT...LON 3200 8807 3196 8807 3196 8810 3195 8812
3192 8809 3193 8807 3192 8807 3190 8813
3187 8813 3182 8818 3178 8816 3181 8841
3199 8840 3201 8808
TIME...MOT...LOC 1858Z 273DEG 19KT 3189 8816
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 10:09 AM CDT | Special Marine Warning | MOB | 96 min | |
| Aug 16, 12:46 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke | 33 min |
| Aug 16, 12:59 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Washington | 22 min |
| Aug 16, 2:35 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Monroe | 30 min |
| Aug 16, 3:34 PM CDT | Severe Thunderstorm Warning | MOB | Wilcox | 29 min |
| Aug 16, 4:22 PM CDT | Special Marine Warning | MOB | 53 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.