Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 177, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Aug 14, 2012, 5:04 PM CDT for Okaloosa County, Santa Rosa County, Florida; Covington County, Escambia County, Alabama. It was in force for 56 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
- Aug 14, 2012, 5:04 PM CDT (22:04 UTC)
- Expired
- Aug 14, 2012, 6:00 PM CDT
- In force
- 56 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Covington County, AL, Escambia County, AL, Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 89 km from the middle of the area, began a volume at 22:04 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
Birmingham, AL (KBMX), launched 12:00Z, 10.1 hours before the alert went out and 237 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
- 1650 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 658 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 38 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.
430
WUUS54 KMOB 142204
SVRMOB
ALC039-053-FLC091-113-142300-
/O.NEW.KMOB.SV.W.0177.120814T2204Z-120814T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
504 PM CDT TUE AUG 14 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...
SOUTHERN COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...
SOUTHEASTERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
* UNTIL 600 PM CDT
* AT 503 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG
A LINE EXTENDING FROM 7 MILES WEST OF ELBA TO 6 MILES SOUTH OF EAST
BREWTON...AND MOVING EAST AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
HORN HILL... JAY... LAUREL HILL...
SANFORD... OPP... ONYCHA...
LOCKHART... LIBERTYVILLE... FLORALA...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 3099 8622 3099 8638 3089 8638 3078 8656
3094 8724 3096 8724 3100 8716 3100 8719
3118 8680 3120 8675 3119 8671 3122 8669
3144 8619 3101 8619
TIME...MOT...LOC 2203Z 273DEG 21KT 3140 8617 3101 8707
$$1 follow-up statement
691
WWUS54 KMOB 142234
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
534 PM CDT TUE AUG 14 2012
ALC039-053-FLC091-113-142300-
/O.CON.KMOB.SV.W.0177.000000T0000Z-120814T2300Z/
COVINGTON AL-ESCAMBIA AL-OKALOOSA FL-SANTA ROSA FL-
534 PM CDT TUE AUG 14 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR NORTHERN SANTA ROSA...NORTHERN OKALOOSA...SOUTHEASTERN ESCAMBIA
AND SOUTHERN COVINGTON COUNTIES...
AT 534 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
WINDS OVER 60 MPH WAS LOCATED 8 MILES SOUTHEAST OF EAST BREWTON...OR
6 MILES SOUTHEAST OF RIVERVIEW...MOVING EAST AT 50 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 3099 8622 3099 8638 3089 8638 3078 8656
3094 8724 3096 8724 3100 8716 3100 8719
3119 8678 3119 8620 3101 8619
TIME...MOT...LOC 2234Z 267DEG 44KT 3100 8696
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 6:00 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 60 min |
| Aug 14, 3:04 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 41 min |
| Aug 14, 3:16 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 44 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2012Severe Thunderstorm Warnings in Alabama, 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.