Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 99, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jun 11, 2012, 10:27 PM CDT for 5 counties in Alabama; Greene County, Perry County, Wayne County, Mississippi. It was in force for 63 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
- Jun 11, 2012, 10:27 PM CDT (03:27 UTC)
- Expired
- Jun 11, 2012, 11:30 PM CDT
- In force
- 63 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Clarke County, AL, Conecuh County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Greene County, MS, Perry County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 113 km from the middle of the area, began a volume at 03:28 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 8:37 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 3.5 hours before the alert went out and 201 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
- 2745 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1430 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
691
WUUS54 KMOB 120327
SVRMOB
ALC025-035-099-129-131-MSC041-111-153-120430-
/O.NEW.KMOB.SV.W.0099.120612T0327Z-120612T0430Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1027 PM CDT MON JUN 11 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
WILCOX COUNTY IN SOUTH CENTRAL ALABAMA...
GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
SOUTHERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
CLARKE COUNTY IN SOUTHWEST ALABAMA...
WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 1130 PM CDT
* AT 1023 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF
PRODUCING DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE
EXTENDING FROM 13 MILES WEST OF GREENVILLE TO 9 MILES SOUTHEAST OF
HATTIESBURG...AND MOVING SOUTHEAST AT 30 MPH.
* LOCATIONS IMPACTED INCLUDE...
SIMS CHAPEL... ROCKVILLE... HOBSON...
WAYNESBORO... STATE LINE... CLARA...
BUCKATUNNA... MCLAIN... LEAKESVILLE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
TUESDAY MORNING FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.
&&
LAT...LON 3144 8895 3160 8895 3174 8847 3170 8846
3170 8809 3176 8810 3177 8816 3182 8818
3208 8720 3205 8685 3196 8685 3196 8691
3155 8688 3097 8913 3143 8915
TIME...MOT...LOC 0328Z 301DEG 26KT 3185 8678 3121 8917
$$1 follow-up statement
513
WWUS54 KMOB 120427
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1127 PM CDT MON JUN 11 2012
ALC025-035-099-129-131-MSC041-111-153-120437-
/O.EXP.KMOB.SV.W.0099.000000T0000Z-120612T0430Z/
CONECUH AL-MONROE AL-WASHINGTON AL-WILCOX AL-WAYNE MS-PERRY MS-
GREENE MS-CLARKE AL-
1127 PM CDT MON JUN 11 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
CLARKE...GREENE...PERRY...SOUTHERN WAYNE...WILCOX...WASHINGTON...
MONROE AND NORTH CENTRAL CONECUH COUNTIES...
AT 1123 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR CLARKE...
GREENE...PERRY...SOUTHERN WAYNE...WILCOX...WASHINGTON...MONROE AND
NORTH CENTRAL CONECUH COUNTIES HAS MOVED OUT OF THE COUNTY...THUS THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 1130 PM CDT.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
TUESDAY MORNING FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.
LAT...LON 3144 8895 3160 8895 3174 8847 3170 8846
3170 8809 3176 8810 3177 8816 3182 8818
3208 8720 3205 8685 3196 8685 3196 8691
3155 8688 3097 8913 3143 8915
TIME...MOT...LOC 0427Z 301DEG 26KT 3162 8635 3099 8874
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:43 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 62 min |
| Jun 11, 9:10 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke | 65 min |
| Jun 11, 9:55 PM CDT | Flash Flood Warning | MOB | Choctaw, Clarke | 3 hr |
| Jun 11, 11:05 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Clarke, Escambia, Mobile, Monroe, Washington | 55 min |
| Jun 11, 11:13 PM CDT | Special Marine Warning | MOB | 2 hr | |
| Jun 12, 1:16 AM CDT | Special Marine Warning | MOB | 89 min | |
| Jun 12, 5:06 PM CDT | River Flood Warning | MOB | Baldwin | 19 hr |
| Jun 12, 5:42 PM CDT | River Flood Warning | MOB | Baldwin | 27 hr |
| Jun 11, 11:27 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene, Perry, Stone | 40 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2012Severe Thunderstorm Warnings in Mississippi, 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.