Alert archive / Georgia / Tornado Watches in 2002

Tornado Watch 806

December 24, 200215 counties in Florida; 37 counties in Georgia; Beaufort County, Jasper County, South Carolina

The Storm Prediction Center issued this tornado watch at Dec 24, 2002, 9:20 AM EST for 15 counties in Florida; 37 counties in Georgia; Beaufort County, Jasper County, South Carolina. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Dec 24, 2002, 9:20 AM EST (14:20 UTC)
Expired
Dec 24, 2002, 2:00 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 54 counties

Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Gilchrist County, FL, Hamilton County, FL, Lafayette County, FL, Madison County, FL, Nassau County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Cook County, GA, Echols County, GA, Effingham County, GA, Evans County, GA, Glynn County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Laurens County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Montgomery County, GA, Pierce County, GA, Tattnall County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Ware County, GA, Wayne County, GA, Wheeler County, GA, Beaufort County, SC, Jasper County, SC

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Dec 24, 9:43 AM ESTTornado WarningTAEBen Hill, Irwin47 min
Dec 24, 9:49 AM ESTTornado WarningTAEBrooks, Thomas41 min
Dec 24, 10:01 AM ESTTornado WarningTAEBerrien29 min
Dec 24, 10:03 AM ESTTornado WarningTAECook27 min
Dec 24, 10:04 AM ESTSevere Thunderstorm WarningFFCTelfair41 min
Dec 24, 10:08 AM ESTTornado WarningJAXCoffee97 min
Dec 24, 10:15 AM ESTTornado WarningJAXAtkinson30 min
Dec 24, 10:17 AM ESTTornado WarningTAELowndes28 min
Dec 24, 10:19 AM ESTTornado WarningTAELanier26 min
Dec 24, 10:23 AM ESTTornado WarningJAXJeff Davis67 min
Dec 24, 10:28 AM ESTTornado WarningJAXClinch32 min
Dec 24, 10:34 AM ESTSevere Thunderstorm WarningCHSCandler41 min
Dec 24, 10:38 AM ESTTornado WarningJAXBacon67 min
Dec 24, 10:45 AM ESTTornado WarningJAXWare90 min
Dec 24, 10:47 AM ESTSevere Thunderstorm WarningCHSTattnall43 min
Dec 24, 10:49 AM ESTSevere Thunderstorm WarningCHSTattnall41 min
Dec 24, 10:50 AM ESTTornado WarningJAXAppling100 min
Dec 24, 11:00 AM ESTSevere Thunderstorm WarningCHSBulloch, Evans45 min
Dec 24, 11:01 AM ESTTornado WarningJAXClinch, Ware89 min
Dec 24, 11:17 AM ESTTornado WarningJAXCharlton118 min
Dec 24, 11:20 AM ESTSevere Thunderstorm WarningCHSLiberty, Long, Tattnall40 min
Dec 24, 11:26 AM ESTTornado WarningJAXBrantley, Pierce34 min
Dec 24, 11:31 AM ESTSevere Thunderstorm WarningCHSBryan, Effingham44 min
Dec 24, 11:34 AM ESTTornado WarningJAXWayne2 hr
Dec 24, 11:39 AM ESTTornado WarningJAXCamden, Glynn2 hr
Dec 24, 11:43 AM ESTTornado WarningCHSMcIntosh47 min
Dec 24, 11:44 AM ESTSevere Thunderstorm WarningCHSJasper61 min
Dec 24, 11:48 AM ESTSevere Thunderstorm WarningCHSJasper57 min
Dec 24, 12:02 PM ESTTornado WarningJAXCamden118 min
Dec 24, 12:14 PM ESTSevere Thunderstorm WarningCHSChatham, Liberty31 min
Dec 24, 12:19 PM ESTSevere Thunderstorm WarningCHSBeaufort41 min
Dec 24, 12:28 PM ESTTornado WarningJAXSuwannee92 min
Dec 24, 12:35 PM ESTFlash Flood WarningJAXSuwannee115 min
Dec 24, 12:53 PM ESTTornado WarningJAXDuval22 min
Dec 24, 12:55 PM ESTTornado WarningJAXSuwannee50 min
Dec 24, 12:59 PM ESTTornado WarningJAXAlachua, Bradford46 min
Dec 24, 1:01 PM ESTTornado WarningJAXColumbia, Union59 min
Dec 24, 1:12 PM ESTTornado WarningJAXClay48 min

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 2.3 hours before the alert went out and 89 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, Jacksonville, FL at 12:00Z on 2002-12-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2002-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 251 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
101 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
251 m²/s²
0-3 km storm-relative helicity
285 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 241419
SEL6  
WWUS20 KWNS 241420
SPC WW 241420
FLZ000-GAZ000-SCZ000-CWZ000-241900-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 806
STORM PREDICTION CENTER NORMAN OK
920 AM EST TUE DEC 24 2002

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

   NORTHEAST FLORIDA                            
   SOUTHEAST GEORGIA                            
   SOUTHERN SOUTH CAROLINA                     
   COASTAL WATERS                     

EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 920 AM UNTIL 200
PM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO
80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST
OF A LINE FROM 20 MILES EAST OF CROSS CITY FLORIDA TO 35 MILES
NORTHWEST OF SAVANNAH 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...  CONTINUE...WW 804...WW 805...

DISCUSSION...INTENSE SQUALL LINE MOVING RAPIDLY EWD WITH VERY
STRONG SHEAR PROFILES IN ADVANCE.  ALONG WITH WIND
DAMAGE...TORNADOES LIKELY ASSOCIATED WITH LINE.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 24045.


...HALES

322,0801 293,0812 293,0840 322,0830

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 24, 3:30 AM ESTTornado WatchSPCEscambia, Okaloosa, Santa Rosa7 hr
Dec 24, 6:20 AM ESTTornado WatchSPCBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 8 more6 hr
Dec 24, 1:30 PM ESTTornado WatchSPCAlachua, Bradford, Citrus, Clay, Dixie, Flagler and 9 more6 hr

Nearby

Tornado Watches in Georgia, 2002Tornado Watches in Florida, 2002Tornado Watches in South Carolina, 2002Every tornado watch in 2002

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.