Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 53, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 12, 2012, 12:31 PM CDT for Mobile County, Washington County, Alabama; Greene County, Mississippi. It was in force for 59 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
- May 12, 2012, 12:31 PM CDT (17:31 UTC)
- Expired
- May 12, 2012, 1:30 PM CDT
- In force
- 59 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 17:31 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 12, 12:50 PM CDT | HAIL 0.88 | Pisgah, MS | |
| May 12, 1:15 PM CDT | TSTM WND DMG | S Leakesville, MS | STRONG WINDS PUSHED TREE ON BUILDING CAUSING FIRE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 5.5 hours before the alert went out and 169 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.
903 WUUS54 KMOB 121731 SVRMOB ALC097-129-MSC041-121830- /O.NEW.KMOB.SV.W.0053.120512T1731Z-120512T1830Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 1231 PM CDT SAT MAY 12 2012 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI... NORTHWESTERN MOBILE COUNTY IN SOUTHWEST ALABAMA... SOUTHWESTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA... * UNTIL 130 PM CDT * AT 1226 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 7 MILES SOUTH OF LEAKESVILLE...OR 16 MILES SOUTHWEST OF DEER PARK...AND MOVING NORTHEAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... SIMS CHAPEL... MOWA CHOCTAW RESERVATION... LEAKESVILLE... FAIRFORD... DEER PARK... 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. && LAT...LON 3136 8816 3111 8803 3101 8858 3111 8865 TIME...MOT...LOC 1731Z 245DEG 16KT 3107 8851 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 12:55 PM CDT | Tornado Warning | MOB | Mobile, Washington | 50 min |
| May 12, 2:28 PM CDT | Severe Thunderstorm Warning | MOB | Washington | 41 min |
| 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 |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.