Alert archive / Georgia / Tornado Watches in 2004

Tornado Watch 802

September 5, 200427 counties in Florida; 39 counties in Georgia

The Storm Prediction Center issued this tornado watch at Sep 5, 2004, 8:35 PM EDT for 27 counties in Florida; 39 counties in Georgia. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
Sep 5, 2004, 8:35 PM EDT (00:35 UTC)
Expired
Sep 6, 2004, 6:00 AM EDT
In force
9 hr
Issued by
the Storm Prediction Center
All 66 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Franklin County, FL, Gadsden County, FL, Gilchrist County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Levy County, FL, Liberty County, FL, Madison County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Wakulla County, FL, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Calhoun County, GA, Camden County, GA, Charlton County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Worth County, GA

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Sep 5, 8:47 PM EDTTornado WarningJAXBacon43 min
Sep 5, 8:51 PM EDTTornado WarningCHSMcIntosh24 min
Sep 5, 9:00 PM EDTTornado WarningJAXAtkinson30 min
Sep 5, 9:14 PM EDTTornado WarningJAXCoffee31 min
Sep 5, 9:50 PM EDTTornado WarningCHSMcIntosh25 min
Sep 5, 10:19 PM EDTTornado WarningCHSMcIntosh56 min
Sep 5, 10:34 PM EDTTornado WarningJAXGlynn26 min
Sep 5, 11:38 PM EDTTornado WarningCHSLiberty, McIntosh37 min
Sep 5, 11:56 PM EDTTornado WarningJAXSaint Johns34 min
Sep 6, 12:17 AM EDTTornado WarningJAXClay43 min
Sep 6, 2:04 AM EDTTornado WarningJAXSaint Johns26 min
Sep 6, 4:45 AM EDTTornado WarningJAXCamden30 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.6 hours before the alert went out and 94 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 2004-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2004-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
168 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 
WWUS20 KWNS 060035
SEL2  
SPC WW 060035
FLZ000-GAZ000-CWZ000-061000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 802
NWS STORM PREDICTION CENTER NORMAN OK
835 PM EDT SUN SEP 5 2004

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

       NORTHERN FLORIDA
       SOUTHERN GEORGIA
       COASTAL WATERS

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 835 PM UNTIL
600 AM EDT.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 50 MILES WEST NORTHWEST OF TALLAHASSEE
FLORIDA TO 55 MILES EAST SOUTHEAST OF JACKSONVILLE FLORIDA.

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...CONTINUE...WW 800...

DISCUSSION...CONVECTIVE BANDS ON NORTH SIDE OF TS FRANCES WILL
CONTINUE TO AFFECT PARTS OF NORTHERN FL AND SOUTHERN GA OVERNIGHT. 
VERY STRONG VERTICAL SHEAR PROFILES ARE PRESENT...AND ISOLATED CELLS
EMBEDDED WITHIN LARGER BANDS WILL CONTINUE TO POSE A THREAT OF
TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 09035.


...HART

315,0850 312,0805 285,0805 292,0850

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 6, 12:12 AM EDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 21 more2 hr
Sep 6, 4:06 AM EDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 21 more84 min
Sep 6, 4:50 AM EDTTornado WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 11 more9 hr
Sep 6, 7:48 AM EDTMesoscale DiscussionSPCBrevard, Charlotte, DeSoto, Hardee, Highlands, Lake and 8 more87 min
Sep 6, 7:55 AM EDTTornado WatchSPCBrevard, Charlotte, Citrus, DeSoto, Glades, Hardee and 21 more6 hr
Sep 6, 12:28 PM EDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Brevard, Charlotte, Citrus and 36 more92 min
Sep 6, 1:20 PM EDTTornado WatchSPCAlachua, Baker, Bradford, Brevard, Citrus, Clay and 38 more7 hr
Sep 6, 3:55 PM EDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 10 more2 hr
Sep 6, 7:12 PM EDTMesoscale DiscussionSPCBaker, Columbia, Duval, Nassau, Union2 hr
Sep 6, 7:45 PM EDTTornado WatchSPCBradford, Clay, Duval, Flagler, Nassau, Putnam and 1 more9 hr
Sep 6, 1:21 AM EDTMesoscale DiscussionSPCRichmond84 min
Sep 6, 1:00 PM EDTTornado WatchSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Bleckley and 49 more7 hr

Nearby

Tornado Watches in Georgia, 2004Tornado Watches in Florida, 2004Every tornado watch in 2004

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.