Alert archive / Alabama / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 413, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Dec 20, 2012, 11:26 AM CST for Geneva County, Houston County, Alabama; Holmes County, Walton County, Florida. It was in force for 64 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
- Dec 20, 2012, 11:26 AM CST (17:26 UTC)
- Expired
- Dec 20, 2012, 12:30 PM CST
- In force
- 64 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
Counties Geneva County, AL, Houston County, AL, Holmes County, FL, Walton County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 20, 11:47 AM CST | TSTM WND DMG | 5 Sse Pinckard, AL | DAMAGE AT 505 BEAVER CREEK ROAD...MULTIPLE TREES DOWN...STRUCTURAL DAMAGE TO A GARAGE...AND A FENCE BLOWN DOWN. POSSIBLE TORNADO. |
| Dec 20, 11:48 AM CST | TSTM WND DMG | 4 Wnw Dothan, AL | MULTIPLE TREES DOWN AND A TRUCK OVERTURNED ALONG HWY 84 WEST OF DOTHAN. POSSIBLE SMALL TORNADO. |
| Dec 20, 11:50 AM CST | TSTM WND DMG | 2 W Slocomb, AL | MULTIPLE TREES AND POWERLINES DOWN AROUND GENEVA COUNTY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 20, 9:19 AM CST | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 5.4 hours before the alert went out and 156 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2063 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
109
WUUS52 KTAE 201726
SVRTAE
ALC061-069-FLC059-131-201830-
/O.NEW.KTAE.SV.W.0413.121220T1726Z-121220T1830Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1126 AM CST THU DEC 20 2012
THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
HOLMES COUNTY IN THE PANHANDLE OF FLORIDA...
NORTHERN WALTON COUNTY IN THE PANHANDLE OF FLORIDA...
GENEVA COUNTY IN SOUTHEAST ALABAMA...
WESTERN HOUSTON COUNTY IN SOUTHEAST ALABAMA...
* UNTIL 1230 PM CST
* AT 1123 AM CST...THE NATIONAL WEATHER SERVICE HAS DETECTED A LINE
OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 11 MILES NORTH OF SLOCOMB TO 32 MILES SOUTHWEST OF GENEVA...OR
ALONG A LINE EXTENDING FROM POWER DAM ROAD TO FOX HILL...AND MOVING
EAST AT 25 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARTFORD...DOTHAN...TAYLOR...WEBB AND COWARTS
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT
AWAY FROM WINDOWS.
&&
LAT...LON 3120 8584 3120 8571 3127 8566 3125 8549
3128 8548 3130 8541 3130 8511 3079 8576
3079 8582 3074 8582 3071 8586 3075 8640
3077 8640
TIME...MOT...LOC 1726Z 270DEG 22KT 3127 8562 3080 8631
$$
42-DVD2 follow-up statements
255
WWUS52 KTAE 201818
SVSTAE
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
118 PM EST THU DEC 20 2012
FLC059-131-201828-
/O.CAN.KTAE.SV.W.0413.000000T0000Z-121220T1830Z/
HOLMES FL-WALTON FL-
1218 PM CST THU DEC 20 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WALTON AND HOLMES
COUNTIES IS CANCELLED...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST THURSDAY EVENING
FOR SOUTHEAST ALABAMA AND NORTHWEST FLORIDA AND SOUTHWEST GEORGIA.
LAT...LON 3119 8578 3120 8571 3127 8566 3125 8549
3128 8548 3129 8542 3130 8541 3129 8512
3099 8550 3099 8593
TIME...MOT...LOC 1818Z 270DEG 22KT 3130 8528 3100 8583
$$
ALC061-069-201830-
/O.CON.KTAE.SV.W.0413.000000T0000Z-121220T1830Z/
GENEVA AL-HOUSTON AL-
1218 PM CST THU DEC 20 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CST
FOR WESTERN HOUSTON AND EASTERN GENEVA COUNTIES...
AT 1217 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WEBB TO EUNOLA...MOVING EAST AT 25 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
THURSTON...DOTHAN...SLOCOMB...MALVERN...TAYLOR...BLACK...SMYRNA...
LIGHT...ENON...BARBER...PEARCE...KEYTONS...GARRETTS CROSSROADS...
MERRITTS CROSSROADS...OLYMPIA SPA RESORT...ARDILLA...WILSON MILL...
SOUTHERN JUNCTION...SIGMA...REHOBETH...MEMPHIS...FADETTE...COWARTS
AND AVON
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST THURSDAY EVENING
FOR SOUTHEAST ALABAMA AND CENTRAL FLORIDA AND SOUTHWEST GEORGIA.
&&
LAT...LON 3119 8578 3120 8571 3127 8566 3125 8549
3128 8548 3129 8542 3130 8541 3129 8512
3099 8550 3099 8593
TIME...MOT...LOC 1818Z 270DEG 22KT 3130 8528 3100 8583
$$
42-DVD738
WWUS52 KTAE 201827
SVSTAE
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1227 PM CST THU DEC 20 2012
ALC061-069-201837-
/O.EXP.KTAE.SV.W.0413.000000T0000Z-121220T1830Z/
GENEVA AL-HOUSTON AL-
1227 PM CST THU DEC 20 2012
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN HOUSTON AND EASTERN
GENEVA COUNTIES WILL EXPIRE AT 1230 PM CST...
RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST THURSDAY EVENING
FOR SOUTHEAST ALABAMA AND NORTHWEST FLORIDA AND SOUTHWEST GEORGIA.
LAT...LON 3119 8578 3120 8571 3127 8566 3125 8549
3128 8548 3129 8542 3130 8541 3129 8512
3099 8550 3099 8593
TIME...MOT...LOC 1827Z 270DEG 22KT 3130 8521 3100 8577
$$
42-DVDThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 2:50 AM CST | Freeze Watch | TAE | Coffee, Dale, Geneva, Henry, Houston | 24 hr |
| Dec 20, 10:09 AM CST | Tornado Warning | TAE | Coffee | 32 min |
| Dec 20, 10:50 AM CST | Severe Thunderstorm Warning | TAE | Geneva | 40 min |
| Dec 20, 11:35 AM CST | Severe Thunderstorm Warning | TAE | Dale, Henry | 55 min |
| Dec 20, 11:46 AM CST | Tornado Warning | TAE | Dale, Henry, Houston | 19 min |
| Dec 20, 3:31 AM CST | Gale Warning | TAE | 26 hr | |
| Dec 20, 3:39 AM CST | Rip Current Statement | TAE | Bay, Gulf, Walton | 38 hr |
| Dec 20, 8:20 AM CST | Dense Fog Advisory | TAE | Gadsden, Leon, Wakulla | 100 min |
| Dec 20, 8:30 AM CST | Marine Dense Fog Advisory | TAE | 4 hr | |
| Dec 20, 10:51 AM CST | Special Marine Warning | TAE | 114 min | |
| Dec 20, 11:45 AM CST | Severe Thunderstorm Warning | TAE | Bay, Holmes, Walton, Washington | 45 min |
| Dec 20, 12:25 PM CST | Severe Thunderstorm Warning | TAE | Bay, Calhoun, Holmes, Jackson, Washington | 50 min |
| Dec 20, 12:41 PM CST | Special Marine Warning | TAE | 3 hr | |
| Dec 20, 1:16 PM CST | Tornado Warning | TAE | Bay, Gulf | 29 min |
| Dec 20, 2:55 PM CST | Special Marine Warning | TAE | 3 hr | |
| Dec 20, 3:28 PM CST | Severe Thunderstorm Warning | TAE | Jefferson, Leon, Madison | 47 min |
| Dec 20, 4:22 PM CST | Tornado Warning | TAE | Taylor | 23 min |
| Dec 20, 4:47 PM CST | Severe Thunderstorm Warning | TAE | Madison | 28 min |
| Dec 20, 5:48 PM CST | Special Marine Warning | TAE | 42 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.