Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 17, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Feb 18, 2012, 4:38 PM CST for 4 counties in Alabama; Okaloosa County, Santa Rosa County, Florida. It was in force for 52 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, 4:38 PM CST (22:38 UTC)
- Expired
- Feb 18, 2012, 5:30 PM CST
- In force
- 52 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 84 km from the middle of the area, began a volume at 22:38 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.6 hours before the alert went out and 228 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
- 548 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
586
WUUS54 KMOB 182238
SVRMOB
ALC035-039-041-053-FLC091-113-182330-
/O.NEW.KMOB.SV.W.0017.120218T2238Z-120218T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
438 PM CST SAT FEB 18 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
NORTHERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
SOUTHEASTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...
EXTREME SOUTH CENTRAL CRENSHAW COUNTY IN SOUTH CENTRAL ALABAMA...
SOUTHEASTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
* UNTIL 530 PM CST
* AT 438 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 11 MILES NORTHWEST OF ANDALUSIA TO 13 MILES SOUTHWEST OF
ANDALUSIA TO 15 MILES EAST OF EAST BREWTON TO 9 MILES SOUTH OF EAST
BREWTON...AND MOVING EAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
FIDELIS... DIXONVILLE... HORN HILL...
LAUREL HILL... SANFORD... ROSE HILL...
RIVER FALLS... RED LEVEL... OPP...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.
&&
LAT...LON 3099 8619 3099 8638 3093 8638 3090 8652
3091 8720 3110 8690 3124 8676 3149 8667
3147 8619
TIME...MOT...LOC 2238Z 272DEG 29KT 3140 8659 3123 8665
3109 8676 3097 8700
$$2 follow-up statements
160
WWUS54 KMOB 182257
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
457 PM CST SAT FEB 18 2012
ALC035-182307-
/O.CAN.KMOB.SV.W.0017.000000T0000Z-120218T2330Z/
CONECUH AL-
457 PM CST SAT FEB 18 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CONECUH COUNTY IS
CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST SUNDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
LAT...LON 3094 8695 3110 8677 3121 8659 3148 8659
3147 8619 3099 8619 3099 8638 3093 8638
3090 8652
TIME...MOT...LOC 2257Z 272DEG 29KT 3141 8648 3122 8646
3108 8658 3097 8682
$$
ALC039-041-053-FLC091-113-182330-
/O.CON.KMOB.SV.W.0017.000000T0000Z-120218T2330Z/
COVINGTON AL-CRENSHAW AL-ESCAMBIA AL-OKALOOSA FL-SANTA ROSA FL-
457 PM CST SAT FEB 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CST
FOR NORTHEASTERN SANTA ROSA...NORTHERN OKALOOSA...SOUTHEASTERN
ESCAMBIA...EXTREME SOUTH CENTRAL CRENSHAW AND COVINGTON COUNTIES...
AT 457 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 GANTT TO CAROLINA TO BEDA TO BELANDVILLE...OR ALONG A
LINE EXTENDING FROM 7 MILES NORTHWEST OF ANDALUSIA TO 7 MILES SOUTH
OF ANDALUSIA TO 18 MILES WEST OF FLORALA TO 14 MILES SOUTHEAST OF
EAST BREWTON...MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HEATH...DUNNS...VALLEY OF SHILOH...STANLEY...CLEARVIEW...ROCK
CREEK...COLDWATER...STRAUGHN...SHILOH...RED OAK...WING...SANFORD...
ROSE HILL...SEARIGHT...ANTIOCH...HARMONY...WIGGINS...HORN HILL...
CEDAR GROVE...BABBIE...BLUE SPRINGS...HUCKAVILLE...EODA...GOOD
HOPE...FIVE POINTS...ONYCHA...OPINE...BLACKMAN...ESCAMBIA FARMS...
GREEN BAY...OPP...DUVALL...BEULAH...PEADEN...BLAIRS...OAK GROVE...
ESTOTHEL...FRIENDSHIP...COUNTY LINE...STEDMAN...OKALOO...MCRAE...
SVEA...LAUREL HILL...CHAPEL HILL...LOCKHART AND HOWELLS
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST SUNDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
&&
LAT...LON 3094 8695 3110 8677 3121 8659 3148 8659
3147 8619 3099 8619 3099 8638 3093 8638
3090 8652
TIME...MOT...LOC 2257Z 272DEG 29KT 3141 8648 3122 8646
3108 8658 3097 8682
$$896
WWUS54 KMOB 182305
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
505 PM CST SAT FEB 18 2012
ALC053-FLC113-182315-
/O.CAN.KMOB.SV.W.0017.000000T0000Z-120218T2330Z/
ESCAMBIA AL-SANTA ROSA FL-
505 PM CST SAT FEB 18 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SANTA ROSA AND
SOUTHEASTERN ESCAMBIA COUNTIES IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CST SUNDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.
LAT...LON 3099 8619 3099 8638 3093 8638 3090 8652
3095 8679 3098 8679 3100 8675 3100 8669
3103 8670 3112 8656 3124 8645 3148 8647
3147 8619
TIME...MOT...LOC 2305Z 271DEG 41KT 3141 8635 3122 8634
3108 8645 3097 8670
$$
ALC039-041-FLC091-182330-
/O.CON.KMOB.SV.W.0017.000000T0000Z-120218T2330Z/
COVINGTON AL-CRENSHAW AL-OKALOOSA FL-
505 PM CST SAT FEB 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CST
FOR NORTHERN OKALOOSA...EXTREME SOUTH CENTRAL CRENSHAW AND COVINGTON
COUNTIES...
AT 505 PM CST...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM ANTIOCH TO HORN HILL TO SHILOH TO
ROCK CREEK...OR ALONG A LINE EXTENDING FROM 8 MILES NORTHEAST OF
ANDALUSIA TO 8 MILES SOUTHWEST OF OPP TO 10 MILES WEST OF FLORALA TO
18 MILES NORTHWEST OF CRESTVIEW...MOVING EAST AT 45 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WIGGINS...BLUE SPRINGS...CEDAR GROVE...BABBIE...HUCKAVILLE...EODA...
FIVE POINTS...GOOD HOPE...ONYCHA...OPINE...BLACKMAN...ESCAMBIA
FARMS...GREEN BAY...DUVALL...BEULAH...BLAIRS...OAK GROVE...
ESTOTHEL...FRIENDSHIP...COUNTY LINE...STEDMAN...OKALOO...MCRAE...
LOCKHART...LAUREL HILL...SVEA...HOWELLS AND CHAPEL HILL
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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.
&&
LAT...LON 3099 8619 3099 8638 3093 8638 3090 8652
3095 8679 3098 8679 3100 8675 3100 8669
3103 8670 3112 8656 3124 8645 3148 8647
3147 8619
TIME...MOT...LOC 2305Z 271DEG 41KT 3141 8635 3122 8634
3108 8645 3097 8670
$$The 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, 1:56 PM CST | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 49 min |
| 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, 4:52 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 |
Nearby
Severe Thunderstorm Warnings in Alabama, 2012Severe Thunderstorm Warnings in Florida, 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.