Alert archive / Georgia / Tornado Watches in 1998
Tornado Watch 39
The Storm Prediction Center issued this tornado watch at Feb 16, 1998, 6:15 PM EST for 24 counties in Florida; 28 counties in Georgia. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 16, 1998, 6:15 PM EST (23:15 UTC)
- Expired
- Feb 17, 1998, 1:00 AM EST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 52 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie 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, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Wakulla County, FL, Atkinson County, GA, Bacon County, GA, Baker County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Calhoun County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Echols County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Seminole County, GA, Thomas County, GA, Tift County, GA, Ware County, GA, Wayne County, GA, Worth County, GA
The radar
The Tallahassee radar (KTLH), 84 km from the middle of the area, began a volume at 23:18 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 16, 7:46 PM EST | Severe Thunderstorm Warning | TAE | Lafayette | 34 min |
| Feb 16, 7:47 PM EST | Tornado Warning | JAX | Alachua | 43 min |
| Feb 16, 8:06 PM EST | Severe Thunderstorm Warning | JAX | Union | 29 min |
| Feb 16, 8:18 PM EST | Severe Thunderstorm Warning | JAX | Baker | 42 min |
| Feb 16, 8:21 PM EST | Severe Thunderstorm Warning | TAE | Dixie, Taylor | 49 min |
| Feb 16, 8:31 PM EST | Severe Thunderstorm Warning | JAX | Nassau | 44 min |
| Feb 16, 8:48 PM EST | Severe Thunderstorm Warning | TAE | Lafayette, Madison | 32 min |
| Feb 16, 8:55 PM EST | Severe Thunderstorm Warning | JAX | Suwannee | 45 min |
| Feb 16, 9:23 PM EST | Severe Thunderstorm Warning | JAX | Columbia, Hamilton | 42 min |
| Feb 16, 10:27 PM EST | Severe Thunderstorm Warning | TAE | Lafayette, Taylor | 33 min |
| Feb 16, 10:57 PM EST | Severe Thunderstorm Warning | JAX | Columbia, Hamilton, Suwannee | 48 min |
| Feb 16, 11:13 PM EST | Severe Thunderstorm Warning | JAX | Clinch, Echols | 32 min |
| Feb 16, 11:32 PM EST | Severe Thunderstorm Warning | JAX | Baker | 48 min |
| Feb 16, 11:52 PM EST | Severe Thunderstorm Warning | JAX | Nassau | 48 min |
| Feb 17, 12:10 AM EST | Severe Thunderstorm Warning | TAE | Decatur | 30 min |
| Feb 17, 12:12 AM EST | Tornado Warning | JAX | Camden, Charlton | 33 min |
| Feb 17, 12:28 AM EST | Severe Thunderstorm Warning | TAE | Baker | 32 min |
| Feb 17, 12:38 AM EST | Severe Thunderstorm Warning | JAX | Columbia, Gilchrist, Suwannee | 32 min |
| Feb 17, 12:54 AM EST | Severe Thunderstorm Warning | JAX | Baker, Union | 31 min |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.3 hours before the alert went out and 82 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
- 87 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 563 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 262 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
137 WWUS9 KMKC 162300 SEL9 MKC WW 162300 FLZ000-GAZ000-170600- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 39 STORM PREDICTION CENTER NORMAN OK 600 PM EST MON FEB 16 1998 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHERN FLORIDA SOUTHERN GEORGIA AND ADJACENT COASTAL WATERS EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 615 PM UNTIL 100 AM EST. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 95 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST OF A LINE FROM 80 MILES SOUTH SOUTHWEST OF CROSS CITY FLORIDA TO 60 MILES EAST NORTHEAST OF ALBANY 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 36...WW 37...WW 38... DISCUSSION...POTENTIAL FOR SUPERCELLS AND TORNADOES EXPECTED TO INCREASE THIS EVENING THROUGH TONIGHT ACROSS THE FL COASTAL BEND ...N FL AND S GA AS EXIT REGION OF STRONG SOUTHERN BRANCH SPEED MAX NOW OVER THE TX GULF COAST CONTINUES E ACROSS THE NRN GULF. WATCH REGION IS ALREADY BEING INFLUENCED BY LARGE SCALE ASCENT DOWNSTREAM FROM THIS SYSTEM...AS EVIDENCED BY SURFACE PRESSURE FALLS AND INCREASING COVERAGE/INTENSITY OF THUNDERSTORMS NOW OVER THE NORTHEASTERN GULF. STRONGEST ACTIVITY MAY FOCUS ON LEADING EDGE OF RETURNING UNMODIFIED GULF AIR...WHICH AT THE MOMENT IS ORIENTED E/W ALONG ROUGHLY 28N. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 520. MEAN STORM MOTION VECTOR 22040. ...CORFIDI 283,0851 314,0844 314,0813 283,0820
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 16, 8:30 AM EST | Tornado Watch | SPC | Alachua, Citrus, Dixie, Hernando, Hillsborough, Levy and 4 more | 5 hr |
| Feb 16, 1:00 PM EST | Tornado Watch | SPC | Brevard, Citrus, Flagler, Hardee, Hernando, Hillsborough and 13 more | 5 hr |
| Feb 16, 1:15 PM EST | Tornado Watch | SPC | Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa and 2 more | 6 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; radar from the NEXRAD Level II archive.