Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 21, NWS Jacksonville, FL

February 16, 1998Baker County, Florida; Charlton County, Ware County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Feb 16, 1998, 11:32 PM EST for Baker County, Florida; Charlton County, Ware County, Georgia. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 16, 1998, 11:32 PM EST (04:32 UTC)
Expired
Feb 17, 1998, 12:20 AM EST
In force
48 min
Issued by
NWS Jacksonville, FL
Area
Whole counties

Counties Baker County, FL, Charlton County, GA, Ware County, GA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 16, 6:15 PM ESTTornado WatchSPC7 hr
Feb 16, 11:30 PM ESTTornado WatchSPC7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 4.5 hours before the alert went out and 61 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, Jacksonville, FL at 00:00Z on 1998-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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, Jacksonville, FL at 00:00Z on 1998-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
21 J/kg
Mixed-layer CIN
-263 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAX 170432 RRA
SVRJAX
FLC003-GAC049-299-170520-

BULLETIN
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1132 PM EST MON FEB 16 1998


THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1220 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHERN FLORIDA

   ...NORTHERN BAKER

IN SOUTHERN GEORGIA

   ...SOUTHERN WARE

IN SOUTHEASTERN GEORGIA

   ...CHARLTON


AT 1129 PM EST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS FROM EAST OF FARGO TO EAST OF HOMERVILLE MOVING
NORTHEAST AT 50 MPH. THE STORMS WILL BE MOVING TO AREAS SOUTH OF THE
WAYCROSS AREA BY 1145 PM AND IN BAKER COUNTY NEAR TAYLOR BY 1140 PM.
LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREAT. WIND GUSTS TO
74 MPH HAVE BEEN REPORTED IN SUWANNEE COUNTY OF NORTH FLORIDA WHEN THE
STORMS MOVED THROUGH THERE BEFORE 11 PM.



THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WIND IN EXCESS OF 55 MPH... LARGE HAIL... AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A PLACE OF SAFETY...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.


PLEASE TUNE TO YOUR LOCAL RADIO OR TELEVISION STATIONS... YOUR CABLE
TELEVISION OUTLET... OR NOAA WEATHER RADIO.

P. PETERSON.

&

The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 16, 7:47 PM ESTTornado WarningJAXAlachua43 min
Feb 16, 8:06 PM ESTSevere Thunderstorm WarningJAXUnion29 min
Feb 16, 8:18 PM ESTSevere Thunderstorm WarningJAXBaker42 min
Feb 16, 8:31 PM ESTSevere Thunderstorm WarningJAXNassau44 min
Feb 16, 8:55 PM ESTSevere Thunderstorm WarningJAXSuwannee45 min
Feb 16, 9:23 PM ESTSevere Thunderstorm WarningJAXColumbia, Hamilton42 min
Feb 16, 10:57 PM ESTSevere Thunderstorm WarningJAXColumbia, Hamilton, Suwannee48 min
Feb 16, 11:52 PM ESTSevere Thunderstorm WarningJAXNassau48 min
Feb 17, 12:38 AM ESTSevere Thunderstorm WarningJAXColumbia, Gilchrist, Suwannee32 min
Feb 17, 12:54 AM ESTSevere Thunderstorm WarningJAXBaker, Union31 min
Feb 17, 1:18 AM ESTSevere Thunderstorm WarningJAXDuval, Nassau47 min
Feb 17, 8:16 AM ESTFlash Flood WarningJAXColumbia, Hamilton, Suwannee6 hr
Feb 17, 8:16 AM ESTFlash Flood WarningJAXBaker, Duval, Nassau6 hr
Feb 17, 8:16 AM ESTFlash Flood WarningJAXUnion6 hr
Feb 17, 8:16 AM ESTFlash Flood WarningJAXClay6 hr
Feb 17, 2:25 PM ESTFlash Flood WarningJAXAlachua, Columbia, Gilchrist, Hamilton, Suwannee, Union6 hr
Feb 17, 2:25 PM ESTFlash Flood WarningJAXBradford, Clay, Flagler, Putnam, Saint Johns6 hr
Feb 17, 2:25 PM ESTFlash Flood WarningJAXBaker, Duval, Nassau6 hr
Feb 17, 4:15 PM ESTFlash Flood WarningJAXBaker, Clay, Duval, Nassau, Saint Johns6 hr
Feb 17, 4:15 PM ESTFlash Flood WarningJAXColumbia, Gilchrist, Hamilton, Suwannee6 hr
Feb 17, 4:15 PM ESTFlash Flood WarningJAXAlachua, Bradford, Putnam, Union6 hr
Feb 17, 4:15 PM ESTFlash Flood WarningJAXFlagler6 hr
Feb 16, 9:06 PM ESTSevere Thunderstorm WarningJAXCamden, Glynn44 min
Feb 16, 11:13 PM ESTSevere Thunderstorm WarningJAXClinch, Echols32 min
Feb 17, 12:12 AM ESTTornado WarningJAXCamden, Charlton33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1998Severe Thunderstorm Warnings in Florida, 1998Every severe thunderstorm warning 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.