Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 147, NWS Tallahassee, FL

August 9, 2000Holmes County, Walton County, Washington County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 9, 2000, 9:27 PM CDT for Holmes County, Walton County, Washington County, Florida. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 2000, 9:27 PM CDT (02:27 UTC)
Expired: Aug 9, 2000, 10:30 PM CDT
In force: 63 min
Issued by: NWS Tallahassee, FL
Area: Whole counties

Counties Holmes County, FL, Walton County, FL, Washington County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.5 hours before the alert went out and 155 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: 1311 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1802 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 31 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.

000 
WUUS52 KTAE 100228
SVRTLH
FLC059-131-133-100330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
927 PM CDT WED AUG 9 2000

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HOLMES COUNTY IN FLORIDA
  WALTON COUNTY IN FLORIDA
  WASHINGTON COUNTY IN FLORIDA

* UNTIL 1030 PM CDT

* AT 927 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS 4 MILES NORTH OF HINSONS
  CROSSROADS...OR ABOUT 15 MILES EAST OF DE FUNIAK SPRINGS...MOVING
  SOUTHWEST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HINSONS CROSSROADS BY 930 PM CDT
  PONCE DE LEON BY 935 PM CDT
  DOUGLASS CROSSROADS...SINAI BY 945 PM CDT
  KNOX HILL BY 955 PM CDT
  EUCHEEANNA...RED BAY BY 1005 PM CDT

THE MAIN THREAT FROM THIS STORM IS DAMAGING WINDS IN EXCESS OF 60 
MPH. 



GOULD
NNNN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 8:06 PM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, Aug 9, 8:06 PM CDT, 1 hour 21 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
906 PM EDT WED AUG 9 2000

ZONE UPDATE:  BUSY EVENING WITH OVER A DOZEN SEVERE THUNDERSTORM
WARNINGS ISSUED ACROSS THE CWFA ALREADY. DAMAGE REPORTS RECEIVED
THUS FAR INCLUDE SEVERAL LARGE TREES DOWN IN SEVERAL COUNTIES IN GA
AS WELL AS DALE CO AL. SEVERE STORMS CURRENTLY TAKING AIM AT
TALLAHASSEE ALONG CONFLUENCE OF OUTFLOWS FROM CONVECTION TO THE N
AND E AS WELL AS THE SEA BREEZE FRONT. HAVE ALREADY UPDATED ZONES A
COUPLE OF TIMES TO RAISE EVENING POPS AND BASICALLY HAVE CATEGORICAL
TO LIKELY IN PLACE FOR THROUGH MIDNIGHT FOR THE DOWNWIND COUNTIES IN
THE FL BIG BEND AND E PANHANDLE.

MARINE: WILL INCLUDE SOME WORDING ABOUT WINDS/SEAS HIGHER IN TSRA.
OTHERWISE...BENIGN CONDITIONS EXPECTED ON THE WATERS AWAY FROM THE
STORMS.

.TLH...
AL...NONE.
GA...NONE.
FL...NONE.

WOOL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 7:31 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon	59 min
Aug 9, 8:13 PM CDT	Severe Thunderstorm Warning	TAE	Jackson	47 min
Aug 9, 8:25 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Wakulla	50 min
Aug 9, 8:42 PM CDT	Severe Thunderstorm Warning	TAE	Liberty	48 min
Aug 9, 9:10 PM CDT	Severe Thunderstorm Warning	TAE	Franklin, Gulf	65 min
Aug 9, 9:41 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun	64 min
Aug 9, 10:13 PM CDT	Severe Thunderstorm Warning	TAE	Franklin, Gulf	32 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000 Every severe thunderstorm warning in 2000

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.