Alert archive / Georgia / Tornado Watches in 2000

Tornado Watch 204

April 24, 2000Geneva County, Houston County, Alabama; 13 counties in Florida; 15 counties in Georgia

The Storm Prediction Center issued this tornado watch at Apr 24, 2000, 11:00 AM CDT for Geneva County, Houston County, Alabama; 13 counties in Florida; 15 counties in Georgia. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Apr 24, 2000, 11:00 AM CDT (16:00 UTC)
Expired: Apr 24, 2000, 4:00 PM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 30 counties

Geneva County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Gadsden County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Suwannee County, FL, Wakulla County, FL, Washington County, FL, Baker County, GA, Berrien County, GA, Brooks County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Early County, GA, Grady County, GA, Lanier County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Seminole County, GA, Thomas County, GA, Tift County, GA

The radar

The Tallahassee radar (KTLH), 66 km from the middle of the area, began a volume at 15:59 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.

Warnings issued inside it

2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Apr 24, 12:36 PM CDT	Severe Thunderstorm Warning	TAE	Lanier, Lowndes	24 min
Apr 24, 1:01 PM CDT	Severe Thunderstorm Warning	TAE	Houston	59 min

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 4.0 hours before the alert went out and 68 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: 8 J/kg
Mixed-layer CIN: -295 J/kg
Mixed-layer LCL: 727 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 143 m²/s²
0-3 km storm-relative helicity: 212 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.

663 
WWUS9 KMKC 241525
SEL4  

SEL4  
MKC WW 241525
ALZ000-FLZ000-GAZ000-CWZ000-242100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 204
STORM PREDICTION CENTER NORMAN OK
1125 AM EDT MON APR 24 2000

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   SOUTHEAST ALABAMA                            
   NORTHERN FLORIDA                            
   SOUTH GEORGIA                            
   COASTAL WATERS                     

EFFECTIVE THIS MONDAY AFTERNOON FROM NOON EDT UNTIL 500 PM EDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 50 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 35 MILES NORTHWEST OF PANAMA CITY FLORIDA TO
20 MILES EAST OF VALDOSTA GEORGIA.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 203.  WATCH NUMBER 203 WILL NOT BE IN EFFECT AFTER NOON EDT.

DISCUSSION...LOCAL VAD FROM TLH/VAX SHOW CONTINUED VERY FAVORABLE
SHEARS PROFILES FOR SUPERCELLS WITH HELICITIES FROM 300-500 M2/S2. 
ONGOING THUNDERSTORMS VICINITY NRN GA BORDER WITH SERN AL/SWRN GA
SHOULD CONTINUE AND DEVELOP EWD.  WARM SECTOR TO S BECOMING QUITE
UNSTABLE WITH CAPES CLIMBING ABOVE 2500 J/KG.  SUPERCELLS AND
ISOLATED TORNADOES ARE POSSIBLE ALONG AND S OF ONGOING STORMS AS
NEW DEVELOPMENT CONTINUES TO OCCUR.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 24035.


...HALES

311,0860 313,0825 300,0825 295,0860

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 23, 10:45 PM CDT	Severe Thunderstorm Watch	SPC	Greene, Sumter	4 hr
Apr 24, 6:45 AM CDT	Tornado Watch	SPC	Coffee, Dale, Geneva, Henry, Houston	4 hr
Apr 24, 12:30 PM CDT	Tornado Watch	SPC	Columbia, Nassau	6 hr
Apr 24, 4:00 PM CDT	Severe Thunderstorm Watch	SPC	Alachua, Baker, Bradford, Clay, Columbia, Dixie and 9 more	5 hr

Nearby

Tornado Watches in Georgia, 2000 Tornado Watches in Florida, 2000 Tornado Watches in Alabama, 2000 Every tornado watch 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.