Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 149, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 30, 2012, 2:29 PM CDT for Okaloosa County, Santa Rosa County, Florida. It was in force for 46 min. 3 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
- Jul 30, 2012, 2:29 PM CDT (19:29 UTC)
- Expired
- Jul 30, 2012, 3:15 PM CDT
- In force
- 46 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 60 km from the middle of the area, began a volume at 19:30 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 |
|---|---|---|---|
| Jul 30, 2:30 PM CDT | TSTM WND DMG | Niceville, FL | TREE DOWN IN FRONT YARD OF RESIDENCE |
| Jul 30, 2:45 PM CDT | TSTM WND DMG | Destin, FL | TREES REPORTED DOWN IN DESTIN |
| Jul 30, 2:56 PM CDT | TSTM WND DMG | 5 W Holt, FL | TREES REPORTED DOWN NEAR ON INTERSTATE 10 NEAR MILE MARKER 40. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.5 hours before the alert went out and 215 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
- 3159 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 518 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 60 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.
145
WUUS54 KMOB 301929
SVRMOB
FLC091-113-302015-
/O.NEW.KMOB.SV.W.0149.120730T1929Z-120730T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
229 PM CDT MON JUL 30 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
SOUTHEASTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
* UNTIL 315 PM CDT
* AT 227 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 11 MILES
SOUTHWEST OF CRESTVIEW...OR 10 MILES SOUTH OF BAKER...AND MOVING
SOUTH AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
OCEAN CITY... FORT WALTON BEACH... NAVARRE BEACH...
SHALIMAR... LAKE LORRAINE... CINCO BAYOU...
WRIGHT... VALPARAISO... NICEVILLE...
THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 38 AND 66.
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 3073 8687 3078 8641 3061 8638 3045 8639
3044 8642 3048 8646 3045 8649 3042 8659
3040 8658 3040 8653 3042 8649 3042 8644
3041 8640 3038 8639 3039 8667 3037 8687
TIME...MOT...LOC 1930Z 355DEG 23KT 3064 8673
$$1 follow-up statement
303
WWUS54 KMOB 301949
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
249 PM CDT MON JUL 30 2012
FLC091-113-302015-
/O.CON.KMOB.SV.W.0149.000000T0000Z-120730T2015Z/
OKALOOSA FL-SANTA ROSA FL-
249 PM CDT MON JUL 30 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR SOUTHEASTERN SANTA ROSA AND SOUTHERN OKALOOSA COUNTIES...
AT 245 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A
LINE EXTENDING FROM 4 MILES EAST OF NICEVILLE TO 12 MILES SOUTHEAST
OF BAGDAD...MOVING SOUTH AT 30 MPH. ANOTHER SEVERE THUNDERSTORM WAS
LOCATED NEAR DESTIN.
LOCATIONS IMPACTED INCLUDE...
OCEAN CITY... FORT WALTON BEACH... NAVARRE BEACH...
SHALIMAR... LAKE LORRAINE... CINCO BAYOU...
WRIGHT... VALPARAISO... NICEVILLE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 3062 8687 3063 8639 3045 8639 3044 8642
3048 8646 3045 8649 3042 8659 3040 8658
3040 8653 3042 8649 3042 8644 3041 8640
3038 8639 3039 8667 3037 8687
TIME...MOT...LOC 1948Z 359DEG 27KT 3050 8642 3048 8686
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 10:28 AM CDT | Heat Advisory | MOB | 5 hr | |
| Jul 30, 1:49 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 41 min |
| Jul 30, 2:12 PM CDT | Areal Flood Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 2 hr |
| Jul 30, 2:41 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 49 min |
| Jul 30, 2:49 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 56 min |
| Jul 30, 3:04 PM CDT | Severe Thunderstorm Warning | MOB | Escambia | 56 min |
| Jul 30, 3:15 PM CDT | Areal Flood Advisory | MOB | Okaloosa | 2 hr |
| Jul 30, 5:21 PM CDT | Severe Thunderstorm Warning | MOB | Santa Rosa | 54 min |
Nearby
Severe 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.