Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 37, NWS Tallahassee, FL

September 29, 1998Washington County, Florida

NWS Tallahassee, FL issued this tornado warning at Sep 29, 1998, 8:24 AM CDT for Washington County, Florida. It was in force for 31 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
Sep 29, 1998, 8:24 AM CDT (13:24 UTC)
Expired
Sep 29, 1998, 8:55 AM CDT
In force
31 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Washington County, FL

The radar

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 13:25 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Sep 28, 10:00 PM CDTTornado WatchSPC12 hr

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 1.4 hours before the alert went out and 81 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, Eglin AFB/Valpar, FL at 12:00Z on 1998-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 641 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Eglin AFB/Valpar, FL at 12:00Z on 1998-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.193958Sfc1 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
641 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
561 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

971 
WFUS1 KTLH 291326 RRA
TORTLH
FLC133-291355-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
924 AM EDT TUE SEP 29 1998

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  WASHINGTON COUNTY IN NORTHWESTERN FLORIDA

* UNTIL 855 AM CDT (955 AM EDT)

* AT 821 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  AN INTENSE LINE OF THUNDERSTORMS WITH DESTRUCTIVE WINDS AND
  POSSIBLE TORNADOES 19 MILES SOUTHWEST OF VERNON MOVING NORTHEAST
  AT 50 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
RED HEAD                   NOW
EBROW                      NOW
VERNON                     BY 840 AM CDT


THIS TORNADO IS LIKELY OBSCURED BY HEAVY RAIN AND MAY NOT BE
VISIBLE. GO TO A PLACE OF SAFETY IMMEDIATELY.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 7:55 PM CDTTornado WarningTAEWalton15 min
Sep 28, 8:30 PM CDTTornado WarningTAEWalton15 min
Sep 29, 12:47 AM CDTFlash Flood WarningTAEWalton12 hr
Sep 29, 6:52 AM CDTTornado WarningTAEHolmes, Washington63 min
Sep 29, 7:51 AM CDTFlash Flood WarningTAEBay, Holmes, Washington6 hr
Sep 29, 8:07 AM CDTTornado WarningTAEBay48 min
Sep 29, 8:49 AM CDTTornado WarningTAEHolmes46 min
Sep 29, 9:13 AM CDTSevere Thunderstorm WarningTAEBay77 min
Sep 29, 9:49 AM CDTTornado WarningTAEGulf61 min
Sep 29, 10:13 AM CDTSevere Thunderstorm WarningTAECalhoun, Jackson77 min
Sep 29, 2:35 PM CDTTornado WarningTAEGulf35 min
Sep 29, 2:57 PM CDTFlash Flood WarningTAEGadsden, Leon, Liberty4 hr
Sep 29, 2:57 PM CDTFlash Flood WarningTAEFranklin, Wakulla4 hr
Sep 29, 4:14 PM CDTSevere Thunderstorm WarningTAELeon, Wakulla76 min
Sep 29, 4:14 PM CDTSevere Thunderstorm WarningTAEGadsden76 min
Sep 29, 5:30 PM CDTSevere Thunderstorm WarningTAELeon, Wakulla60 min

Nearby

Tornado Warnings in Florida, 1998Every tornado warning in 1998Tornadoes 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.