Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 56, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 16, 2012, 6:52 PM CDT for Okaloosa County, Florida. It was in force for 53 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
- May 16, 2012, 6:52 PM CDT (23:52 UTC)
- Expired
- May 16, 2012, 7:45 PM CDT
- In force
- 53 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 60 km from the middle of the area, began a volume at 23:52 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, 11.9 hours before the alert went out and 214 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
- 1168 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 770 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
757
WUUS54 KMOB 162352
SVRMOB
FLC091-170045-
/O.NEW.KMOB.SV.W.0056.120516T2352Z-120517T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
652 PM CDT WED MAY 16 2012
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN OKALOOSA COUNTY IN NORTHWEST FLORIDA...
* UNTIL 745 PM CDT
* AT 646 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 3 MILES
SOUTHWEST OF EGLIN AFB...OR 5 MILES NORTH OF SHALIMAR...AND MOVING
SOUTHEAST AT 10 MPH.
* LOCATIONS IMPACTED INCLUDE...
SHALIMAR... OCEAN CITY... LAKE LORRAINE...
FORT WALTON BEACH... CINCO BAYOU... WRIGHT...
VALPARAISO... NICEVILLE... EGLIN AFB...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM
WINDOWS.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3039 8660 3052 8669 3060 8659 3049 8639
3045 8643 3048 8645 3042 8655 3043 8658
3040 8658 3040 8652 3042 8649 3041 8647
3037 8650
TIME...MOT...LOC 2351Z 304DEG 9KT 3051 8659
$$2 follow-up statements
158
WWUS54 KMOB 170010
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
710 PM CDT WED MAY 16 2012
FLC091-170045-
/O.CON.KMOB.SV.W.0056.000000T0000Z-120517T0045Z/
OKALOOSA FL-
710 PM CDT WED MAY 16 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR SOUTHEASTERN OKALOOSA COUNTY...
AT 710 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 5 MILES SOUTH
OF EGLIN AFB...OR 6 MILES NORTHEAST OF FORT WALTON BEACH...MOVING
SOUTHEAST AT 10 MPH.
LOCATIONS IMPACTED INCLUDE...
SHALIMAR... OCEAN CITY... LAKE LORRAINE...
FORT WALTON BEACH... CINCO BAYOU... VALPARAISO...
NICEVILLE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND
LIGHTNING CAN BE EXPECTED WITH THIS STORM. MOVE INDOORS IMMEDIATELY!
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3039 8660 3048 8666 3058 8655 3049 8639
3045 8643 3048 8645 3042 8655 3043 8658
3040 8658 3040 8652 3042 8649 3041 8647
3037 8650
TIME...MOT...LOC 0008Z 304DEG 9KT 3047 8655
$$121
WWUS54 KMOB 170042
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
742 PM CDT WED MAY 16 2012
FLC091-170051-
/O.EXP.KMOB.SV.W.0056.000000T0000Z-120517T0045Z/
OKALOOSA FL-
742 PM CDT WED MAY 16 2012
...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
SOUTHEASTERN OKALOOSA COUNTY...
AT 742 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHEASTERN
OKALOOSA COUNTY HAS WEAKENED BELOW SEVERE LIMITS...THUS THE SEVERE
THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE AT 745 PM CDT.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
LAT...LON 3039 8660 3048 8666 3058 8655 3049 8639
3045 8643 3048 8645 3042 8655 3043 8658
3040 8658 3040 8652 3042 8649 3041 8647
3037 8650
TIME...MOT...LOC 0041Z 304DEG 9KT 3042 8647
$$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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.