Alert archive / Georgia / Tornado Watches in 1998
Tornado Watch 852
The Storm Prediction Center issued this tornado watch at Sep 29, 1998, 7:00 PM EDT for 21 counties in Florida; 85 counties in Georgia. It was in force for 10 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 29, 1998, 7:00 PM EDT (23:00 UTC)
- Expired
- Sep 30, 1998, 5:00 AM EDT
- In force
- 10 hr
- Issued by
- the Storm Prediction Center
All 106 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Gadsden County, FL, Gilchrist County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Bibb County, GA, Bleckley County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Calhoun County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chattahoochee 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, Echols County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Glynn County, GA, Grady County, GA, Harris County, GA, Houston County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, Macon County, GA, Marion County, GA, McIntosh County, GA, Meriwether County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Montgomery County, GA, Muscogee County, GA, Peach County, GA, Pierce County, GA, Pulaski County, GA, Randolph County, GA, Schley County, GA, Screven 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, Troup County, GA, Turner County, GA, Twiggs County, GA, Upson County, GA, Ware County, GA, Washington County, GA, Wayne County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 7:31 PM EDT | Tornado Warning | FFC | Montgomery, Wheeler | 34 min |
| Sep 29, 8:15 PM EDT | Tornado Warning | JAX | Appling, Bacon | 45 min |
| Sep 29, 11:17 PM EDT | Flash Flood Warning | JAX | Atkinson, Bacon, Coffee, Jeff Davis, Ware | 9 hr |
| Sep 29, 11:17 PM EDT | Flash Flood Warning | JAX | Appling, Pierce | 9 hr |
| Sep 29, 11:17 PM EDT | Flash Flood Warning | JAX | Charlton | 9 hr |
| Sep 30, 12:52 AM EDT | Tornado Warning | JAX | Suwannee | 63 min |
| Sep 30, 12:57 AM EDT | Tornado Warning | JAX | Hamilton | 63 min |
| Sep 30, 1:10 AM EDT | Tornado Warning | TAE | Lafayette | 20 min |
| Sep 30, 1:53 AM EDT | Tornado Warning | JAX | Suwannee | 77 min |
| Sep 30, 3:09 AM EDT | Tornado Warning | JAX | Suwannee | 81 min |
| Sep 30, 3:37 AM EDT | Flash Flood Warning | JAX | Hamilton, Suwannee | 6 hr |
| Sep 30, 4:10 AM EDT | Tornado Warning | JAX | Columbia, Hamilton | 75 min |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 11.0 hours before the alert went out and 155 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
- 445 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 917 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
156 WWUS9 KMKC 292237 SEL2 MKC WW 292237 FLZ000-GAZ000-300900- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 852 STORM PREDICTION CENTER NORMAN OK 637 PM EDT TUE SEP 29 1998 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHERN FLORIDA SOUTHERN AND CENTRAL GEORGIA AND ADJACENT COASTAL WATERS EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 700 PM UNTIL 500 AM EDT. TORNADOES...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 105 STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF MACON GEORGIA TO 25 MILES EAST SOUTHEAST OF CROSS CITY 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...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 850. WATCH NUMBER 850 WILL NOT BE IN EFFECT AFTER 700 PM EDT. CONTINUE...WW 851... DISCUSSION...THREAT FOR ISOLATED TORNADOES EXPECTED TO CONTINUE AS T.D. GEORGES PROGRESSES FARTHER ENEWD. ALTHOUGH VERTICAL SHEAR HAS WEAKENED SOMEWHAT COMPARED TO THIS TIME YESTERDAY...PROFILES REMAIN MILDLY SUPPORTIVE OF LOW-LEVEL CYCLOGENESIS. ISOLATED STORMS NOW DEVELOPING OVER E CENTRAL/SE GA WELL AHEAD OF T.D. CIRCULATION CENTER SHOULD DIMINISH LATER THIS EVENING. THIS WILL LEAVE MAIN TORNADIC THREAT CONFINED TO CONVERGENCE BANDS IMMEDIATELY AHEAD OF T.D. CIRCULATION CENTER. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 480. MEAN STORM MOTION VECTOR 18035. ...CORFIDI 330,0812 292,0805 292,0842 330,0850
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 11:00 PM EDT | Tornado Watch | SPC | Bay, Calhoun, Escambia, Gadsden, Gulf, Holmes and 9 more | 12 hr |
| Sep 29, 11:00 AM EDT | Tornado Watch | SPC | Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 9 more | 9 hr |
Nearby
Tornado Watches in Georgia, 1998Tornado Watches in Florida, 1998Every tornado watch in 1998
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.