Alert archive / Georgia / Tornado Watches in 1998

Tornado Watch 93

March 8, 199818 counties in Florida; 40 counties in Georgia

The Storm Prediction Center issued this tornado watch at Mar 8, 1998, 9:00 AM EST for 18 counties in Florida; 40 counties in Georgia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Mar 8, 1998, 9:00 AM EST (14:00 UTC)
Expired
Mar 8, 1998, 4:00 PM EST
In force
7 hr
Issued by
the Storm Prediction Center
All 58 counties

Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Franklin County, FL, Gadsden County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Nassau 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, Brantley County, GA, Brooks County, GA, Bryan County, GA, Calhoun County, GA, Camden 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, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Seminole County, GA, Tattnall County, GA, Telfair County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Worth County, GA

The radar

The Moody AFB radar (KVAX), 39 km from the middle of the area, began a volume at 14:03 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

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

IssuedProductOfficeCountiesLasted
Mar 8, 9:10 AM ESTSevere Thunderstorm WarningJAXCoffee50 min
Mar 8, 10:10 AM ESTSevere Thunderstorm WarningJAXCoffee50 min
Mar 8, 10:15 AM ESTSevere Thunderstorm WarningFFCTelfair, Wheeler30 min
Mar 8, 10:20 AM ESTSevere Thunderstorm WarningJAXJeff Davis45 min
Mar 8, 10:54 AM ESTSevere Thunderstorm WarningJAXAppling36 min
Mar 8, 11:12 AM ESTSevere Thunderstorm WarningJAXAtkinson48 min
Mar 8, 12:03 PM ESTSevere Thunderstorm WarningTAECalhoun, Early47 min
Mar 8, 12:08 PM ESTSevere Thunderstorm WarningTAEBaker32 min
Mar 8, 2:48 PM ESTSevere Thunderstorm WarningJAXAtkinson, Coffee62 min
Mar 8, 2:54 PM ESTSevere Thunderstorm WarningTAEFranklin46 min
Mar 8, 2:57 PM ESTFlash Flood WarningJAXAtkinson, Coffee6 hr
Mar 8, 3:12 PM ESTTornado WarningJAXCoffee58 min
Mar 8, 3:56 PM ESTTornado WarningJAXAppling59 min

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 2.0 hours before the alert went out and 113 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 1998-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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, Tallahassee Rgnl, FL at 12:00Z on 1998-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 650 square meters per square second.1939587897Sfc1 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
14 J/kg
Mixed-layer CIN
-271 J/kg
Mixed-layer LCL
636 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
650 m²/s²
0-3 km storm-relative helicity
709 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

202 
WWUS9 KMKC 081328
SEL3  
MKC WW 081328
GAZ000-FLZ000-082100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 93
STORM PREDICTION CENTER NORMAN OK
828 AM EST SUN MAR 8 1998

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

   SOUTHERN GEORGIA                            
   NORTHERN FLORIDA                            
   AND ADJACENT COASTAL WATERS

EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 900 AM UNTIL 400
PM EST.

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

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 35 MILES WEST NORTHWEST OF TALAHASSEE FLORIDA
TO 20 MILES EAST OF BRUNSWICK 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 91.  WATCH NUMBER 91 WILL NOT BE IN EFFECT AFTER 900 AM EST. 
CONTINUE...WW 92...

DISCUSSION...STRONG/SEVERE THUNDERSTORMS CONTINUE TO MOVE RAPIDLY
NORTHEASTWARD FROM EXTREME SOUTHEAST ALABAMA...NORTHWEST
FLORIDA...AND SOUTHWEST GEORGIA.  12Z SOUNDINGS AND LOCAL VAD WIND
PROFILES SHOW EXTREMELY STRONG WINDS ABOVE THE SURFACE THAT VEER
WITH HEIGHT...CREATING FAVORABLE SHEAR FOR SUPERCELL DEVELOPMENT. 
AIR MASS IS MODERATELY UNSTABLE OVER NORTHWEST FLORIDA...AND
DESTABILIZATION IS LIKELY INTO SOUTHERN GEORGIA/NORTHERN FLORIDA
PENINSULA TODAY.  STRONGER STORMS WILL HAVE POTENTIAL FOR DAMAGING
WIND GUSTS WITH THREAT FOR ISOLATED TORNADOES.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 420. 
MEAN STORM MOTION VECTOR 22060.


...WEISS

314,0845 321,0810 300,0810 293,0845

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 7, 10:45 PM ESTTornado WatchSPCBay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more6 hr
Mar 8, 3:15 AM ESTTornado WatchSPCAlachua, Baker, Columbia, Dixie, Franklin, Gadsden and 11 more6 hr
Mar 8, 5:00 AM ESTTornado WatchSPCBay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more6 hr
Mar 8, 11:00 AM ESTTornado WatchSPCBay, Calhoun, Escambia, Gulf, Holmes, Jackson and 4 more5 hr
Mar 8, 4:00 PM ESTTornado WatchSPCBaker, Bay, Bradford, Calhoun, Clay, Columbia and 22 more6 hr
Mar 8, 12:45 PM ESTSevere Thunderstorm WatchSPCBaldwin, Bibb, Bleckley, Butts, Carroll, Chattahoochee and 65 more6 hr
Mar 8, 4:45 PM ESTSevere Thunderstorm WatchSPCBartow, Carroll, Catoosa, Chattahoochee, Chattooga, Cherokee and 28 more5 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.