Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 134, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 17, 2012, 3:33 PM CDT for Covington County, Alabama; Okaloosa County, Florida. It was in force for 16 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
- Jul 17, 2012, 3:33 PM CDT (20:33 UTC)
- Expired
- Jul 17, 2012, 3:49 PM CDT
- In force
- 16 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Covington County, AL, Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 62 km from the middle of the area, began a volume at 20:33 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.6 hours before the alert went out and 208 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
- 2058 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 906 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
986
WUUS54 KMOB 172033
SVRMOB
ALC039-FLC091-172130-
/O.NEW.KMOB.SV.W.0134.120717T2033Z-120717T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
333 PM CDT TUE JUL 17 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
SOUTH CENTRAL COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...
* UNTIL 430 PM CDT
* AT 330 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
WINDS OVER 60 MPH WAS LOCATED 3 MILES NORTHWEST OF FLORALA...OR
NEAR LOCKHART...AND MOVING SOUTH AT 15 MPH.
* LOCATIONS IMPACTED INCLUDE...
LAUREL HILL... LOCKHART... FLORALA...
LAT...LON 3099 8638 3098 8639 3087 8638 3082 8639
3082 8651 3108 8646 3108 8627 3099 8625
TIME...MOT...LOC 2033Z 359DEG 13KT 3101 8637
$$1 follow-up statement
231
WWUS54 KMOB 172049
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
349 PM CDT TUE JUL 17 2012
ALC039-FLC091-172059-
/O.CAN.KMOB.SV.W.0134.000000T0000Z-120717T2130Z/
COVINGTON AL-OKALOOSA FL-
349 PM CDT TUE JUL 17 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR
NORTHEASTERN OKALOOSA AND SOUTH CENTRAL COVINGTON COUNTIES...
AT 349 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHEASTERN
OKALOOSA AND SOUTH CENTRAL COVINGTON COUNTIES HAS WEAKENED TO BELOW
SEVERE LIMITS...THUS THE SEVERE THUNDERSTORM WARNING HAS BEEN
CANCELLED.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
LAT...LON 3099 8638 3098 8639 3087 8638 3082 8639
3082 8651 3108 8646 3108 8627 3099 8625
TIME...MOT...LOC 2049Z 359DEG 13KT 3095 8637
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 6:22 AM CDT | Special Marine Warning | MOB | 83 min | |
| Jul 17, 12:41 PM CDT | Special Marine Warning | MOB | 94 min | |
| Jul 17, 2:18 PM CDT | Special Marine Warning | MOB | 27 min | |
| Jul 17, 2:34 PM CDT | Areal Flood Advisory | MOB | Butler | 116 min |
| Jul 17, 2:58 PM CDT | Special Marine Warning | MOB | 62 min | |
| Jul 17, 3:41 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 26 min |
| Jul 17, 4:10 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 36 min |
| Jul 17, 4:58 PM CDT | Areal Flood Advisory | MOB | Escambia | 2 hr |
| Jul 17, 5:20 PM CDT | Severe Thunderstorm Warning | MOB | Butler | 40 min |
| Jul 17, 5:35 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 40 min |
| Jul 17, 6:05 PM CDT | Areal Flood Advisory | MOB | Mobile | 115 min |
| Jul 17, 6:36 PM CDT | Special Marine Warning | MOB | 84 min | |
| Jul 17, 6:42 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 38 min |
| Jul 17, 6:49 PM CDT | Special Marine Warning | MOB | 56 min | |
| Jul 17, 2:41 PM CDT | Areal Flood Advisory | MOB | Okaloosa | 2 hr |
| Jul 17, 3:31 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 26 min |
| Jul 17, 4:55 PM CDT | Severe Thunderstorm Warning | MOB | Santa Rosa | 50 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.