Alert archive / Georgia / Tornado Watches in 2004
Tornado Watch 919
The Storm Prediction Center issued this tornado watch at Dec 9, 2004, 10:25 PM CST for Houston County, Alabama; Jackson County, Florida; 46 counties in Georgia. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 9, 2004, 10:25 PM CST (04:25 UTC)
- Expired
- Dec 10, 2004, 2:00 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 48 counties
Houston County, AL, Jackson County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Bleckley County, GA, Brooks County, GA, Calhoun County, GA, Clay 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, Emanuel County, GA, Grady County, GA, Houston County, GA, Irwin County, GA, Johnson County, GA, Laurens County, GA, Lee County, GA, Macon County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Peach County, GA, Pulaski County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Sumter County, GA, Taylor County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Treutlen County, GA, Turner County, GA, Twiggs County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Worth County, GA
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 10:32 PM CST | Severe Thunderstorm Warning | TAE | Calhoun | 43 min |
| Dec 9, 10:37 PM CST | Severe Thunderstorm Warning | FFC | Macon, Schley | 38 min |
| Dec 9, 10:57 PM CST | Severe Thunderstorm Warning | TAE | Dougherty, Lee, Worth | 48 min |
| Dec 9, 11:33 PM CST | Severe Thunderstorm Warning | FFC | Houston | 27 min |
| Dec 9, 11:41 PM CST | Severe Thunderstorm Warning | FFC | Twiggs | 49 min |
| Dec 10, 1:18 AM CST | Tornado Warning | TAE | Colquitt | 27 min |
| Dec 10, 1:45 AM CST | Severe Thunderstorm Warning | TAE | Berrien, Colquitt, Cook, Tift | 45 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, 4.4 hours before the alert went out and 121 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.
- Mixed-layer CAPE
- 1502 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 471 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 100425
SEL9
SPC WW 100425
ALZ000-GAZ000-100800-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 919
NWS STORM PREDICTION CENTER NORMAN OK
1125 PM EST THU DEC 9 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EXTREME SOUTHEAST ALABAMA
SOUTHWEST AND SOUTH CENTRAL GEORGIA
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1125 PM
UNTIL 300 AM EST.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES EAST NORTHEAST OF MACON GEORGIA TO 40
MILES EAST SOUTHEAST OF MARIANNA 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 918...
DISCUSSION...INCREASING LARGE SCALE ASCENT IS SUPPORTING
STRENGTHENING THUNDERSTORMS OVER SWRN GA/FAR SERN AL LATE THIS
EVENING. INSTABILITY AND SHEAR PARAMETERS REMAIN VERY FAVORABLE FOR
SUPERCELLS AND TORNADOES SHOULD STORMS ROOT DEEPLY INTO A VERY MOIST
BOUNDARY LAYER AS ACTIVITY DEVELOPS ENEWD OVERNIGHT.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 24035.
...EVANS
325,0820 303,0832 303,0853 325,0841SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 6:15 PM CST | Mesoscale Discussion | SPC | Randolph | 90 min |
| Dec 10, 10:12 AM CST | Mesoscale Discussion | SPC | DeKalb, Jackson | 33 min |
| Dec 9, 9:48 PM CST | Mesoscale Discussion | SPC | Gadsden, Jackson | 87 min |
| Dec 10, 1:11 AM CST | Mesoscale Discussion | SPC | Jackson | 64 min |
| Dec 10, 5:41 AM CST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Citrus, Clay, Columbia and 9 more | 3 hr |
| Dec 9, 8:05 PM CST | Tornado Watch | SPC | Baldwin, Barrow, Bibb, Burke, Butts, Carroll and 51 more | 6 hr |
| Dec 9, 11:07 PM CST | Mesoscale Discussion | SPC | Baldwin, Barrow, Bibb, Burke, Butts, Carroll and 52 more | 83 min |
| Dec 10, 1:35 AM CST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 44 more | 6 hr |
| Dec 10, 5:00 AM CST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 44 more | 2 hr |
| Dec 10, 11:53 AM CST | Mesoscale Discussion | SPC | Catoosa, Chattooga, Dade, Fannin, Gilmer, Gordon and 3 more | 2 hr |
Nearby
Tornado Watches in Georgia, 2004Tornado Watches in Alabama, 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.