Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 13, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Feb 18, 2012, 1:56 PM CST for Baldwin County, Mobile County, Alabama; George County, Mississippi. It was in force for 49 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
- Feb 18, 2012, 1:56 PM CST (19:56 UTC)
- Expired
- Feb 18, 2012, 2:45 PM CST
- In force
- 49 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Baldwin County, AL, Mobile County, AL, George County, MS
The radar
The Mobile radar (KMOB), 21 km from the middle of the area, began a volume at 19:55 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 |
|---|---|---|---|
| Feb 18, 11:49 AM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.9 hours before the alert went out and 156 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 449 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
306
WUUS54 KMOB 181956
SVRMOB
ALC003-097-MSC039-182045-
/O.NEW.KMOB.SV.W.0013.120218T1956Z-120218T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
156 PM CST SAT FEB 18 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...
NORTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 245 PM CST
* AT 155 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 11 MILES SOUTHEAST OF
LEAKESVILLE TO 9 MILES EAST OF LUCEDALE TO 14 MILES SOUTH OF
LUCEDALE...AND MOVING EAST AT 45 MPH.
* LOCATIONS IMPACTED INCLUDE...
MOVICO... TANNER WILLIAMS... SEMMES...
SATSUMA... SARALAND... PRICHARD...
MOUNT VERNON... I65 AND US 45... I65 AND US 43...
THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 5 AND 47.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS!
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3073 8842 3073 8861 3083 8859 3088 8852
3100 8850 3100 8842 3111 8843 3116 8762
3092 8764 3087 8771 3069 8786 3068 8842
TIME...MOT...LOC 1955Z 266DEG 43KT 3103 8839 3088 8839
3083 8846 3072 8855
$$
JP/MB1 follow-up statement
345
WWUS54 KMOB 182028
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
228 PM CST SAT FEB 18 2012
MSC039-182036-
/O.CAN.KMOB.SV.W.0013.000000T0000Z-120218T2045Z/
GEORGE MS-
228 PM CST SAT FEB 18 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN GEORGE COUNTY IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.
LAT...LON 3087 8842 3112 8833 3115 8779 3100 8775
3087 8782 3068 8796 3068 8842
TIME...MOT...LOC 2026Z 258DEG 30KT 3105 8819 3090 8819
3085 8826 3074 8835
$$
ALC003-097-182045-
/O.CON.KMOB.SV.W.0013.000000T0000Z-120218T2045Z/
BALDWIN AL-MOBILE AL-
228 PM CST SAT FEB 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM CST
FOR NORTHERN MOBILE AND WEST CENTRAL BALDWIN COUNTIES...
AT 228 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM CITRONELLE TO 8 MILES NORTHWEST OF SARALAND TO 15
MILES WEST OF PRICHARD...MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SEMMES...TANNER WILLIAMS...LOTT...UNIVERSITY OF SOUTH
ALABAMA...SPRING HILL COLLEGE...CHICKASAW...AND COCHRANE BRIDGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3087 8842 3112 8833 3115 8779 3100 8775
3087 8782 3068 8796 3068 8842
TIME...MOT...LOC 2026Z 258DEG 30KT 3105 8819 3090 8819
3085 8826 3074 8835
$$
JP/MBThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 3:38 AM CST | Wind Advisory | MOB | 38 hr | |
| Feb 18, 2:28 PM CST | Flash Flood Warning | MOB | Mobile, Washington | 32 days |
| Feb 18, 3:13 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Conecuh, Escambia, Monroe | 47 min |
| Feb 18, 3:28 PM CST | Gale Warning | MOB | 21 hr | |
| Feb 18, 3:37 PM CST | Flash Flood Warning | MOB | Baldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more | 113 min |
| Feb 18, 3:59 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 61 min |
| Feb 18, 4:01 PM CST | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia | 44 min |
| Feb 18, 4:07 PM CST | Special Marine Warning | MOB | 83 min | |
| Feb 18, 4:19 PM CST | Flash Flood Warning | MOB | Baldwin, Mobile | 116 min |
| Feb 18, 4:21 PM CST | Tornado Warning | MOB | Mobile | 24 min |
| Feb 18, 4:25 PM CST | Areal Flood Advisory | MOB | Choctaw, Clarke, Monroe, Washington, Wilcox | 2 hr |
| Feb 18, 4:30 PM CST | Flash Flood Warning | MOB | Mobile, Washington | 60 min |
| Feb 18, 4:38 PM CST | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Crenshaw, Escambia | 52 min |
| Feb 18, 4:52 PM CST | Flash Flood Warning | MOB | Baldwin | 113 min |
| Feb 18, 4:59 PM CST | Severe Thunderstorm Warning | MOB | Baldwin | 76 min |
| Feb 18, 5:13 PM CST | Flash Flood Warning | MOB | Baldwin, Butler, Conecuh, Covington, Crenshaw, Escambia | 2 hr |
| Feb 18, 5:17 PM CST | Tornado Warning | MOB | Baldwin | 28 min |
| Feb 18, 5:27 PM CST | Special Marine Warning | MOB | 93 min | |
| Feb 18, 9:48 AM CST | River Flood Warning | MOB | George, Greene, Perry | 6 days |
| Feb 18, 9:48 AM CST | River Flood Warning | MOB | George, Greene, Wayne | 6 days |
| Feb 18, 12:39 PM CST | Severe Thunderstorm Warning | MOB | Perry, Stone | 51 min |
| Feb 18, 1:13 PM CST | Severe Thunderstorm Warning | MOB | George, Stone | 47 min |
| Feb 18, 1:17 PM CST | Tornado Warning | MOB | George, Stone | 13 min |
| Feb 18, 1:35 PM CST | Areal Flood Advisory | MOB | Perry, Stone | 115 min |
| Feb 18, 1:36 PM CST | Tornado Warning | MOB | George, Greene | 39 min |
| Feb 18, 4:05 PM CST | Areal Flood Warning | MOB | George, Greene, Perry, Stone, Wayne | 34 days |
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.