Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 170, NWS Tallahassee, FL

June 5, 2012Jefferson County, Leon County, Florida; Thomas County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 5, 2012, 4:40 PM EDT for Jefferson County, Leon County, Florida; Thomas County, Georgia. It was in force for 50 min. 7 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: Jun 5, 2012, 4:40 PM EDT (20:40 UTC)
Expired: Jun 5, 2012, 5:30 PM EDT
In force: 50 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Jefferson County, FL, Leon County, FL, Thomas County, GA

The radar

The Tallahassee radar (KTLH), 47 km from the middle of the area, began a volume at 20:39 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.

What was reported inside it

Time	Report	Where	Remark
Jun 5, 4:45 PM EDT	HAIL 0.88	2 E Thomasville, GA	HAIL THE SIZE OF NICKELS ESTIMATED AT THE INTERSECTION OF U.S. HIGHWAY 84 EAST AND U.S. 19 SOUTH.
Jun 5, 4:55 PM EDT	FUNNEL CLOUD	1 S Dillon, GA	OBSERVED ON COUNTRY OAKS GOLF COURSE.
Jun 5, 4:55 PM EDT	TSTM WND DMG	2 Ene Thomasville Munic, GA	SHINGLES BLOWN OFF THE FOOR OF A HOME ON CENTENNIAL ROAD.
Jun 5, 4:55 PM EDT	TSTM WND DMG	Ese Thomasville Municip, GA	AIRPORT WEATHER SENSOR REPORTED 64 MPH WIND GUST
Jun 5, 4:55 PM EDT	TSTM WND DMG	Thomasville Municipal A, GA	AIRPORT WEATHER SENSOR REPORTED 64 MPH WIND GUST
Jun 5, 5:05 PM EDT	TSTM WND DMG	5 Nnw Boston, GA	TREE DOWN ACROSS OZELL ROAD NEAR VINSON ROAD INTERSECTION. POWER LINES DOWN IN THAT AREA AS WELL.
Jun 5, 5:08 PM EDT	TSTM WND DMG	6 Nne Boston, GA	MULTIPLE TREES AND POWERLINES DOWN AROUND THOMAS COUNTY. LIGHTNING STRUCK A GAS STATION GENERATING A FIRE.

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
Jun 5, 12:24 PM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.7 hours before the alert went out and 45 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: 1108 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 885 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

285 
WUUS52 KTAE 052040
SVRTAE
FLC065-073-GAC275-052130-
/O.NEW.KTAE.SV.W.0170.120605T2040Z-120605T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
440 PM EDT TUE JUN 5 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL JEFFERSON COUNTY IN FLORIDA...
  NORTHEASTERN LEON COUNTY IN FLORIDA...
  THOMAS COUNTY IN SOUTH CENTRAL GEORGIA...

* UNTIL 530 PM EDT

* AT 436 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 13 MILES SOUTH
  OF THOMASVILLE...OR NEAR MICCOSUKEE...AND MOVING NORTHEAST AT 25
  MPH.

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

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 3054 8406 3064 8413 3068 8411 3068 8408
      3072 8408 3098 8393 3090 8376 3071 8376
TIME...MOT...LOC 2040Z 230DEG 20KT 3067 8404

$$

1 follow-up statement

939 
WWUS52 KTAE 052052
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
452 PM EDT TUE JUN 5 2012

FLC065-073-052102-
/O.CAN.KTAE.SV.W.0170.000000T0000Z-120605T2130Z/
LEON FL-JEFFERSON FL-
452 PM EDT TUE JUN 5 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL JEFFERSON AND
NORTHEASTERN LEON COUNTIES IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
TUESDAY EVENING FOR SOUTHEAST ALABAMA AND CENTRAL FLORIDA AND
SOUTHWESTERN GEORGIA.

LAT...LON 3067 8384 3068 8408 3072 8408 3098 8393
      3090 8376 3071 8376
TIME...MOT...LOC 2052Z 230DEG 20KT 3071 8398

$$

GAC275-052130-
/O.CON.KTAE.SV.W.0170.000000T0000Z-120605T2130Z/
THOMAS GA-
452 PM EDT TUE JUN 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR THOMAS COUNTY...

AT 454 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR METCALF...MOVING NORTHEAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
THOMASVILLE...EVERETT...NEWARK...EASON...BOSTON...DILLON...
THOMASVILLE MUNICIPAL A/P...FIVE POINTS...PATTEN AND MERRILLVILLE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
TUESDAY EVENING FOR SOUTHEAST ALABAMA AND CENTRAL FLORIDA AND
SOUTHWESTERN GEORGIA.

&&

LAT...LON 3067 8384 3068 8408 3072 8408 3098 8393
      3090 8376 3071 8376
TIME...MOT...LOC 2052Z 230DEG 20KT 3071 8398

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 3:51 PM EDT	Special Weather Statement	TAE	Gadsden	24 min
Jun 5, 3:57 PM EDT	Special Weather Statement	TAE	Leon	48 min
Jun 5, 4:05 PM EDT	Severe Thunderstorm Warning	TAE	Jackson	10 min
Jun 5, 4:08 PM EDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon	52 min
Jun 5, 3:31 PM EDT	Special Weather Statement	TAE	Ben Hill	44 min
Jun 5, 3:40 PM EDT	Severe Thunderstorm Warning	TAE	Ben Hill	38 min
Jun 5, 5:02 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Colquitt, Thomas	43 min
Jun 5, 5:36 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Brooks, Colquitt, Cook, Lowndes	39 min
Jun 5, 6:08 PM EDT	Severe Thunderstorm Warning	TAE	Colquitt, Cook	37 min

Nearby

Severe Thunderstorm Warnings in Florida, 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; radar from the NEXRAD Level II archive.