Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 16, NWS Tallahassee, FL

February 18, 2012Dale County, Henry County, Houston County, Alabama; Clay County, Early County, Miller County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 18, 2012, 6:24 PM CST for Dale County, Henry County, Houston County, Alabama; Clay County, Early County, Miller County, Georgia. It was in force for 51 min. 2 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: Feb 18, 2012, 6:24 PM CST (00:24 UTC)
Expired: Feb 18, 2012, 7:15 PM CST
In force: 51 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Dale County, AL, Henry County, AL, Houston County, AL, Clay County, GA, Early County, GA, Miller County, GA

What was reported inside it

Time	Report	Where	Remark
Feb 18, 6:28 PM CST	TSTM WND DMG	Dothan, AL	LARGE OAK TREES SNAPPED IN HALF
Feb 18, 7:15 PM CST	TSTM WND DMG	1 Nnw Cuba, GA	A FEW TREES WERE REPORTED DOWN ACROSS EARLY COUNTY. TIME AND LOCATION GENERALIZED BASED ON STRONGEST RADAR VELOCITIES.

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
Feb 18, 2:58 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.4 hours before the alert went out and 122 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 566 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 378 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

193 
WUUS52 KTAE 190024
SVRTAE
ALC045-067-069-GAC061-099-201-190115-
/O.NEW.KTAE.SV.W.0016.120219T0024Z-120219T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
624 PM CST SAT FEB 18 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME EAST CENTRAL DALE COUNTY IN SOUTHEAST ALABAMA...
  HENRY COUNTY IN SOUTHEAST ALABAMA...
  HOUSTON COUNTY IN SOUTHEAST ALABAMA...
  SOUTHERN CLAY COUNTY IN SOUTHWEST GEORGIA...
  EARLY COUNTY IN SOUTHWEST GEORGIA...
  NORTHWESTERN MILLER COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 715 PM CST/815 PM EST/

* AT 625 PM 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 6
  MILES WEST OF ABBEVILLE TO DOTHAN TO 13 MILES SOUTHWEST OF
  TAYLOR...AND MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HEADLAND...KINSEY...COWARTS...WEBB...ASHFORD...COTTONWOOD...
  COLUMBIA AND BLAKELY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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 3161 8482 3122 8482 3107 8498 3107 8503
      3104 8501 3102 8503 3102 8549 3115 8548
      3121 8543 3161 8541
TIME...MOT...LOC 0023Z 269DEG 40KT 3156 8534 3121 8539
          3102 8560

$$

22-BARRY

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 18, 6:49 PM CST	Areal Flood Advisory	TAE	Coffee, Geneva	3 hr
Feb 18, 9:41 PM CST	Flash Flood Warning	TAE	Geneva, Houston	4 hr
Feb 18, 7:15 PM CST	Severe Thunderstorm Warning	TAE	Baker, Calhoun, Early, Miller	45 min
Feb 18, 7:34 PM CST	Severe Thunderstorm Warning	TAE	Decatur, Seminole	41 min
Feb 18, 7:53 PM CST	Severe Thunderstorm Warning	TAE	Baker, Decatur, Early, Miller, Mitchell, Seminole	37 min
Feb 18, 8:10 PM CST	Severe Thunderstorm Warning	TAE	Baker, Dougherty, Lee, Mitchell, Worth	50 min
Feb 18, 8:11 PM CST	Severe Thunderstorm Warning	TAE	Decatur, Grady	49 min
Feb 18, 8:12 PM CST	Areal Flood Advisory	TAE	Baker, Calhoun, Colquitt, Decatur, Dougherty, Early and 8 more	2 hr
Feb 18, 8:22 PM CST	Severe Thunderstorm Warning	TAE	Colquitt, Mitchell	38 min
Feb 18, 8:39 PM CST	Severe Thunderstorm Warning	TAE	Brooks, Colquitt, Thomas	51 min
Feb 18, 8:44 PM CST	Areal Flood Advisory	TAE	Berrien, Brooks, Colquitt, Cook, Dougherty, Grady and 7 more	2 hr
Feb 18, 8:50 PM CST	Severe Thunderstorm Warning	TAE	Seminole	40 min
Feb 18, 8:57 PM CST	Severe Thunderstorm Warning	TAE	Ben Hill, Berrien, Irwin, Tift, Turner, Worth	48 min
Feb 18, 9:02 PM CST	Severe Thunderstorm Warning	TAE	Berrien, Brooks, Colquitt, Cook, Lanier, Lowndes	43 min
Feb 18, 9:30 PM CST	Tornado Warning	TAE	Berrien, Lanier	30 min
Feb 18, 9:46 PM CST	Severe Thunderstorm Warning	TAE	Berrien, Lanier	14 min
Feb 18, 10:47 PM CST	Areal Flood Advisory	TAE	Decatur, Grady, Seminole, Thomas	118 min
Feb 19, 10:12 AM CST	River Flood Warning	TAE	Lee	27 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2012 Severe Thunderstorm Warnings in Georgia, 2012 Every 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.