Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 79, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 23, 2012, 11:19 AM CDT for Holmes County, Walton County, Florida; Geneva County, Alabama. It was in force for 26 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
- Mar 23, 2012, 11:19 AM CDT (16:19 UTC)
- Expired
- Mar 23, 2012, 11:45 AM CDT
- In force
- 26 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
Counties Geneva County, AL, Holmes County, FL, Walton County, FL
The radar
The Eglin Afb radar (KEVX), 51 km from the middle of the area, began a volume at 16:20 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, 4.3 hours before the alert went out and 188 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
- 758 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 800 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
052
WUUS52 KTAE 231619
SVRTAE
ALC061-FLC059-131-231645-
/O.NEW.KTAE.SV.W.0079.120323T1619Z-120323T1645Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1119 AM CDT FRI MAR 23 2012
THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN HOLMES COUNTY IN THE PANHANDLE OF FLORIDA...
NORTH CENTRAL WALTON COUNTY IN THE PANHANDLE OF FLORIDA...
WESTERN GENEVA COUNTY IN SOUTHEAST ALABAMA...
* UNTIL 1145 AM CDT
* AT 1115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 14 MILES SOUTHWEST OF SAMSON...
OR NEAR GASKIN...AND MOVING EAST AT 25 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DARLINGTON...LEONIA...LOGAN FIELD MUNICIPAL A/P...ROYALS
CROSSROADS...SWEETGUM HEAD...SOMERSET...VAUGHANVILLE...LYTLE...
MARL...SELLERSVILLE AND NEW HOPE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. IF
A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.
&&
LAT...LON 3099 8622 3100 8619 3101 8620 3116 8600
3095 8582 3085 8622 3096 8624
TIME...MOT...LOC 1619Z 249DEG 21KT 3094 8613
$$
15-HARRIGANThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 2:28 PM CDT | Special Marine Warning | TAE | 62 min | |
| Mar 23, 3:05 PM CDT | Special Weather Statement | TAE | Walton | 25 min |
| Mar 23, 3:09 PM CDT | Special Marine Warning | TAE | 66 min | |
| Mar 23, 3:32 PM CDT | Special Marine Warning | TAE | 43 min | |
| Mar 23, 4:01 PM CDT | Special Weather Statement | TAE | Bay, Washington | 44 min |
| Mar 23, 12:49 PM CDT | Tornado Warning | TAE | Geneva, Henry, Houston | 18 min |
| Mar 23, 2:12 PM CDT | Tornado Warning | TAE | Henry | 33 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.