Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 331, NWS Tallahassee, FL

July 26, 2012Decatur County, Seminole County, Georgia; Gadsden County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 26, 2012, 5:01 PM EDT for Decatur County, Seminole County, Georgia; Gadsden County, Florida. It was in force for 44 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: Jul 26, 2012, 5:01 PM EDT (21:01 UTC)
Expired: Jul 26, 2012, 5:45 PM EDT
In force: 44 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Gadsden County, FL, Decatur County, GA, Seminole County, GA

The radar

The Tallahassee radar (KTLH), 53 km from the middle of the area, began a volume at 21:03 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, 9.0 hours before the alert went out and 56 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: 2537 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

284 
WUUS52 KTAE 262101
SVRTAE
FLC039-GAC087-253-262145-
/O.NEW.KTAE.SV.W.0331.120726T2101Z-120726T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
501 PM EDT THU JUL 26 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GADSDEN COUNTY IN FLORIDA...
  SOUTHWESTERN DECATUR COUNTY IN SOUTHWEST GEORGIA...
  SOUTHEASTERN SEMINOLE COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 545 PM EDT

* AT 458 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED 7 MILES NORTHEAST OF CHATTAHOOCHEE...
  OR NEAR RECOVERY...AND MOVING SOUTHEAST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  QUINCY

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 3091 8469 3060 8445 3049 8478 3052 8478
      3052 8480 3069 8487 3070 8486 3074 8489
      3081 8492
TIME...MOT...LOC 2101Z 332DEG 4KT 3078 8477

$$

42-DVD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 3:05 PM EDT	Severe Thunderstorm Warning	TAE	Mitchell	40 min
Jul 26, 3:34 PM EDT	Severe Thunderstorm Warning	TAE	Baker, Decatur, Miller, Mitchell	56 min
Jul 26, 3:46 PM EDT	Severe Thunderstorm Warning	TAE	Grady, Thomas	29 min
Jul 26, 4:04 PM EDT	Severe Thunderstorm Warning	TAE	Baker, Decatur, Miller	26 min
Jul 26, 4:34 PM EDT	Severe Thunderstorm Warning	TAE	Decatur, Seminole	26 min
Jul 26, 4:43 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Lowndes	47 min
Jul 26, 5:04 PM EDT	Severe Thunderstorm Warning	TAE	Seminole	41 min
Jul 26, 5:10 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Brooks, Cook, Lowndes	50 min
Jul 26, 5:36 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Colquitt, Cook, Thomas	32 min
Jul 26, 5:51 PM EDT	Areal Flood Advisory	TAE	Decatur, Seminole	84 min
Jul 26, 7:14 PM EDT	Special Weather Statement	TAE	Quitman	31 min
Jul 26, 7:24 AM EDT	Special Weather Statement	TAE	Dixie	66 min
Jul 26, 7:44 AM EDT	Special Weather Statement	TAE	Dixie	61 min
Jul 26, 8:37 AM EDT	Special Marine Warning	TAE		53 min
Jul 26, 2:48 PM EDT	Special Marine Warning	TAE		57 min
Jul 26, 3:20 PM EDT	Special Weather Statement	TAE	Wakulla	55 min
Jul 26, 4:56 PM EDT	Special Weather Statement	TAE	Gadsden, Jackson, Leon	64 min
Jul 26, 5:44 PM EDT	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson, Liberty	46 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012 Severe Thunderstorm Warnings in Florida, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.