Alert archive / Georgia / Tornado Watches in 2003

Tornado Watch 613

July 1, 200312 counties in Florida; 80 counties in Georgia; Barnwell County, South Carolina

The Storm Prediction Center issued this tornado watch at Jul 1, 2003, 3:05 PM CDT for 12 counties in Florida; 80 counties in Georgia; Barnwell County, South Carolina. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 1, 2003, 3:05 PM CDT (20:05 UTC)
Expired
Jul 1, 2003, 9:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 93 counties

Bay County, FL, Calhoun County, FL, Columbia County, FL, Gadsden County, FL, Hamilton County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Suwannee County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Baldwin County, GA, Ben Hill County, GA, Berrien County, GA, Bibb County, GA, Bleckley County, GA, Brooks County, GA, Burke County, GA, Calhoun County, GA, Candler County, GA, Chattahoochee County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crawford County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Grady County, GA, Houston County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lowndes County, GA, Macon County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Montgomery County, GA, Peach County, GA, Pierce County, GA, Pike County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Screven County, GA, Seminole County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Tattnall County, GA, Taylor County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Twiggs County, GA, Upson County, GA, Ware County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA, Worth County, GA, Barnwell County, SC

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 1, 4:40 PM CDTTornado WarningTAEColquitt, Mitchell50 min
Jul 1, 6:42 PM CDTTornado WarningCHSJenkins, Screven48 min
Jul 1, 8:53 PM CDTTornado WarningCHSScreven67 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 12:00Z, 8.1 hours before the alert went out and 105 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 12:00Z on 2003-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1717 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2003-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.193958Sfc1 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
1717 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
588 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
1.0
Supercell composite
6.7

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 012007
SEL3  
SPC WW 012005
FLZ000-GAZ000-CWZ000-020200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 613 
NWS STORM PREDICTION CENTER NORMAN OK 
405 PM EDT TUE JUL 1 2003

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

       NORTHERN FLORIDA
       SOUTHERN AND CENTRAL GEORGIA
       COASTAL WATERS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 405 PM UNTIL
1000 PM EDT.

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

THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES SOUTH SOUTHEAST OF TALLAHASSEE FLORIDA TO
55 MILES NORTHEAST OF MACON 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 612. WATCH NUMBER 612 WILL NOT BE IN EFFECT AFTER 405
PM EDT. 


DISCUSSION...AS CENTER OF BILL MOVES ENEWD ACROSS NRN AL...THE
STRONG LLJ AND ASSOCIATED VEERING SHEAR PROFILES ARE SHIFTING EWD
ACROSS GA AND NRN FL.  WITH WARM FRONT MOVING SLOWLY NWD ACROSS
CENTRAL GA...TROPICAL AIRMASS IS SPREADING INTO CENTRAL GA. 
TORNADIC SUPERCELLS ARE LIKELY IN REGION OF STRONG LOW LEVEL JET AND
IN THE CONVERGENCE REGION VICINITY OF WARM FRONT.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME
TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI
WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 21035.


...HALES

295,0853 331,0843 331,0812 295,0823

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 30, 7:22 PM CDTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 10 more113 min
Jun 30, 9:40 PM CDTTornado WatchSPCEscambia, Okaloosa, Santa Rosa5 hr
Jul 1, 1:25 AM CDTTornado WatchSPCEscambia, Holmes, Okaloosa, Santa Rosa9 hr
Jul 1, 4:26 AM CDTMesoscale DiscussionSPCEscambia, Holmes, Okaloosa, Santa Rosa2 hr
Jul 1, 7:28 AM CDTMesoscale DiscussionSPCEscambia, Holmes, Jackson, Okaloosa, Santa Rosa62 min
Jul 1, 9:40 AM CDTTornado WatchSPCBay, Calhoun, Gadsden, Gulf, Holmes, Jackson and 7 more6 hr
Jul 1, 2:49 PM CDTMesoscale DiscussionSPCCalhoun, Gadsden, Hamilton, Jackson, Jefferson, Leon and 4 more116 min
Jul 1, 12:57 PM CDTMesoscale DiscussionSPCChattahoochee, Harris, Muscogee, Quitman, Stewart2 hr
Jul 1, 4:26 PM CDTMesoscale DiscussionSPCBryan, Chatham, Effingham, Liberty94 min
Jul 1, 5:00 PM CDTTornado WatchSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 21 more4 hr

Nearby

Tornado Watches in Georgia, 2003Tornado Watches in Florida, 2003Tornado Watches in South Carolina, 2003Every tornado watch in 2003

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.