Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 88, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 31, 2012, 5:05 PM CDT for Clarke County, Washington County, Alabama. It was in force for 40 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, 5:05 PM CDT (22:05 UTC)
- Expired
- May 31, 2012, 5:45 PM CDT
- In force
- 40 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Clarke County, AL, Washington County, AL
The radar
The Mobile radar (KMOB), 82 km from the middle of the area, began a volume at 22:05 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 10.1 hours before the alert went out and 206 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
- 1878 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 652 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- -31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
095
WUUS54 KMOB 312205
SVRMOB
ALC025-129-312245-
/O.NEW.KMOB.SV.W.0088.120531T2205Z-120531T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
505 PM CDT THU MAY 31 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN CLARKE COUNTY IN SOUTHWEST ALABAMA...
EASTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 545 PM CDT
* AT 500 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 14 MILES SOUTH
OF CHATOM...OR 6 MILES EAST OF TIBBIE...AND MOVING NORTHEAST AT 25
MPH.
* LOCATIONS IMPACTED INCLUDE...
SIMS CHAPEL... SEABOARD... WAGARVILLE...
TIBBIE... SAINT STEPHENS... MCINTOSH...
LEROY... CHATOM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DESTRUCTIVE HAIL AND DAMAGING
WINDS. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY
FROM WINDOWS.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3148 8791 3127 8780 3128 8783 3125 8784
3118 8812 3142 8832 3170 8819
TIME...MOT...LOC 2204Z 243DEG 20KT 3134 8813
$$1 follow-up statement
342
WWUS54 KMOB 312222
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
522 PM CDT THU MAY 31 2012
ALC025-129-312245-
/O.CON.KMOB.SV.W.0088.000000T0000Z-120531T2245Z/
WASHINGTON AL-CLARKE AL-
522 PM CDT THU MAY 31 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR SOUTHWESTERN CLARKE AND EASTERN WASHINGTON COUNTIES...
AT 520 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
CONTINUING TO MONITOR A SEVERE THUNDERSTORM CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH THAT WAS LOCATED 14
MILES SOUTHEAST OF CHATOM...OR NEAR WAGARVILLE...MOVING NORTHEAST AT
30 MPH.
LOCATIONS IMPACTED INCLUDE...
HOBSON... WAGARVILLE... SAINT STEPHENS...
MCINTOSH... LEROY...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DESTRUCTIVE HAIL AND DAMAGING
WINDS. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY
FROM WINDOWS.
FREQUENT CLOUD TO GROUND LIGHTNING IS ALSO OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3119 8808 3145 8831 3170 8819 3148 8791
3127 8780 3128 8783 3125 8784
TIME...MOT...LOC 2220Z 230DEG 25KT 3140 8802
$$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, 5:59 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 46 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.