Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 1, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jan 21, 2012, 2:12 PM CST for Butler County, Crenshaw County, Alabama. It was in force for 48 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jan 21, 2012, 2:12 PM CST (20:12 UTC)
- Expired
- Jan 21, 2012, 3:00 PM CST
- In force
- 48 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Butler County, AL, Crenshaw County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 21, 2:25 PM CST | HAIL 1 | Wald, AL | DIME TO QUARTER SIZE HAIL REPORTED ALONG HIGHWAY 31 SOUTH OF GREENVILLE. TIME RADAR ESTIMATED. |
| Jan 21, 2:50 PM CST | HAIL 1 | 6 Sw Greenville, AL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 8.2 hours before the alert went out and 160 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
- 1141 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
775 WUUS54 KMOB 212012 SVRMOB ALC013-041-212100- /O.NEW.KMOB.SV.W.0001.120121T2012Z-120121T2100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 212 PM CST SAT JAN 21 2012 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL BUTLER COUNTY IN SOUTH CENTRAL ALABAMA... WEST CENTRAL CRENSHAW COUNTY IN SOUTH CENTRAL ALABAMA... * UNTIL 300 PM CST * AT 211 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 10 MILES WEST OF GREENVILLE...OR 5 MILES NORTHWEST OF CHAPMAN...AND MOVING EAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... I65 AND AL 10... GREENVILLE... CHAPMAN... THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 118 AND 129. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 3181 8630 3155 8641 3175 8686 3185 8681 TIME...MOT...LOC 2011Z 283DEG 26KT 3177 8675 $$ JP
1 follow-up statement
056
WWUS54 KMOB 212034
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
234 PM CST SAT JAN 21 2012
ALC013-041-212100-
/O.CON.KMOB.SV.W.0001.000000T0000Z-120121T2100Z/
BUTLER AL-CRENSHAW AL-
234 PM CST SAT JAN 21 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CST
FOR WEST CENTRAL CRENSHAW AND EAST CENTRAL BUTLER COUNTIES...
AT 234 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR WALD...OR NEAR GREENVILLE...MOVING EAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MASHVILLE...GLASGOW...HALSO MILL...MIDWAY...SARDIS...PIGEON CREEK...
CENTER RIDGE...MOODYS CROSSROADS...ROBINSON CROSSROADS...MULBERRY...
MERRILL MILL...IVY CREEK...CHEROKEE VILLAGE AND CENTENARY
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 3172 8669 3181 8664 3183 8649 3181 8630
3155 8641
TIME...MOT...LOC 2034Z 286DEG 24KT 3175 8660
$$
JPThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 20, 6:40 PM CST | Marine Dense Fog Advisory | MOB | 15 hr | |
| Jan 20, 6:42 PM CST | Dense Fog Advisory | MOB | 12 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.