Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 38, NWS Tallahassee, FL

March 11, 2000Jefferson County, Florida; Thomas County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 11, 2000, 9:12 PM EST for Jefferson County, Florida; Thomas County, Georgia. It was in force for 28 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
Mar 11, 2000, 9:12 PM EST (02:12 UTC)
Expired
Mar 11, 2000, 9:40 PM EST
In force
28 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

Counties Jefferson County, FL, Thomas County, GA

The radar

The Tallahassee radar (KTLH), 49 km from the middle of the area, began a volume at 02:12 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 00:00Z, 2.2 hours before the alert went out and 46 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2000-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1584 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2000-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1584 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
514 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.5

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KTAE 120210
SVRTLH
FLC065-GAC275-120240-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
912 PM EST SAT MAR 11 2000

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN JEFFERSON COUNTY IN FLORIDA
  SOUTHERN THOMAS COUNTY IN GEORGIA

* UNTIL 940 PM EST

* AT 912 PM EST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
  SEVERE THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS ABOUT 16    
  MILES SOUTH OF THOMASVILLE...MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ASHVILLE BY 925 PM EST

GOLFBALL HAIL AND EXTENSIVE DAMAGE WAS REPORTED IN GADSDEN COUNTY 
WITH THIS STORM. THIS IS A DANGEROUS STORM...SEEK SHELTER NOW!

&

TURNAGE
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 11, 7:31 PM ESTSevere Thunderstorm WarningTAECalhoun, Jackson29 min
Mar 11, 7:48 PM ESTSevere Thunderstorm WarningTAEGadsden, Liberty27 min
Mar 11, 8:13 PM ESTSevere Thunderstorm WarningTAEGadsden22 min
Mar 11, 8:28 PM ESTTornado WarningTAEGadsden17 min
Mar 11, 8:39 PM ESTSevere Thunderstorm WarningTAEGadsden, Leon36 min
Mar 11, 8:47 PM ESTSevere Thunderstorm WarningTAELeon28 min
Mar 11, 9:18 PM ESTSevere Thunderstorm WarningTAEMadison27 min
Mar 11, 7:02 PM ESTTornado WarningTAEThomas28 min
Mar 11, 7:11 PM ESTSevere Thunderstorm WarningTAEDecatur34 min
Mar 11, 7:28 PM ESTTornado WarningTAEBrooks32 min
Mar 11, 8:03 PM ESTSevere Thunderstorm WarningTAELowndes32 min
Mar 11, 8:11 PM ESTSevere Thunderstorm WarningTAEBerrien, Lanier44 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000Severe Thunderstorm Warnings in Georgia, 2000Every 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; radar from the NEXRAD Level II archive.