Alert archive / Alabama / Tornado Warnings in 2012
Tornado Warning 28, NWS Mobile, AL
NWS Mobile, AL issued this tornado warning at May 12, 2012, 12:55 PM CDT for Greene County, Mississippi; Mobile County, Washington County, Alabama. It was in force for 50 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 12, 2012, 12:55 PM CDT (17:55 UTC)
- Expired
- May 12, 2012, 1:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Mobile County, AL, Washington County, AL, Greene County, MS
The radar
The Mobile radar (KMOB), 57 km from the middle of the area, began a volume at 17:58 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, 5.9 hours before the alert went out and 171 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
- 1685 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 500 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.7
The text
As transmitted, in the capitals the NWS used until 2016.
570
WFUS54 KMOB 121755
TORMOB
ALC097-129-MSC041-121845-
/O.NEW.KMOB.TO.W.0028.120512T1755Z-120512T1845Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1255 PM CDT SAT MAY 12 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
NORTHWESTERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
SOUTHERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 145 PM CDT
* AT 1254 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 8 MILES SOUTHEAST OF LEAKESVILLE...OR 14 MILES
SOUTHWEST OF DEER PARK...MOVING NORTHEAST AT 30 MPH.
* LOCATIONS IMPACTED INCLUDE...
SIMS CHAPEL... MCINTOSH... MALCOLM...
FAIRFORD... DEER PARK...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.
&&
LAT...LON 3142 8812 3121 8796 3099 8842 3100 8852
3110 8860
TIME...MOT...LOC 1756Z 236DEG 25KT 3108 8846
$$1 follow-up statement
807 WWUS54 KMOB 121830 SVSMOB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 130 PM CDT SAT MAY 12 2012 ALC097-MSC041-121839- /O.CAN.KMOB.TO.W.0028.000000T0000Z-120512T1845Z/ GREENE MS-MOBILE AL- 130 PM CDT SAT MAY 12 2012 ...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTHWESTERN MOBILE AND SOUTHEASTERN GREENE COUNTIES... AT 126 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHWESTERN MOBILE AND SOUTHEASTERN GREENE COUNTIES HAS MOVED OUT OF THE COUNTY THUS THE TORNADO WARNING HAS BEEN CANCELLED. LAT...LON 3113 8839 3120 8842 3142 8812 3124 8799 TIME...MOT...LOC 1829Z 236DEG 25KT 3116 8837 $$ ALC129-121845- /O.CON.KMOB.TO.W.0028.000000T0000Z-120512T1845Z/ WASHINGTON AL- 130 PM CDT SAT MAY 12 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR SOUTHERN WASHINGTON COUNTY... AT 126 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 10 MILES NORTHWEST OF CITRONELLE...OR 6 MILES SOUTHWEST OF DEER PARK...MOVING NORTHEAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... SIMS CHAPEL... MCINTOSH... DEER PARK... PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. && LAT...LON 3113 8839 3120 8842 3142 8812 3124 8799 TIME...MOT...LOC 1829Z 236DEG 25KT 3116 8837 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 11:20 AM CDT | Severe Thunderstorm Warning | MOB | Stone | 40 min |
| May 12, 11:44 AM CDT | Tornado Warning | MOB | Perry, Stone | 46 min |
| May 12, 12:23 PM CDT | Severe Thunderstorm Warning | MOB | Perry | 52 min |
| May 12, 12:31 PM CDT | Severe Thunderstorm Warning | MOB | Greene | 59 min |
| May 12, 2:28 PM CDT | Severe Thunderstorm Warning | MOB | Washington | 41 min |
Nearby
Tornado Warnings in Alabama, 2012Tornado Warnings in Mississippi, 2012Every tornado warning in 2012Tornadoes 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.