Alert archive / Florida / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 10, NWS Tallahassee, FL

February 16, 1998Lafayette County, Taylor County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 16, 1998, 10:27 PM EST for Lafayette County, Taylor County, Florida. It was in force for 33 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 16, 1998, 10:27 PM EST (03:27 UTC)
Expired
Feb 16, 1998, 11:00 PM EST
In force
33 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

Counties Lafayette County, FL, Taylor County, FL

The radar

The Tallahassee radar (KTLH), 99 km from the middle of the area, began a volume at 03:31 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.

What was reported inside it

TimeReportWhereRemark
Feb 16, 10:45 PM ESTThunderstorm WindMayo, FLThunderstorm winds downed trees and a transformer was struck by lightning. Power outages reported countywide.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.5 hours before the alert went out and 97 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 00:00Z on 1998-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 538 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 00:00Z on 1998-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 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
538 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
670 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 16, 8:44 PM EST, 1 hour 43 minutes earlier.

Area forecast discussion, Feb 16, 8:44 PM EST, 1 hour 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
844 PM EST MON FEB 16 1998

SHOWERS AND TSTMS TO CONT ACROSS CWA THRU NITE. STRONGEST STORMS
HAVE REMAINED OFFSHORE UNTIL RECENTLY AS LARGE HAIL PRODUCING
STORMS HAVE TRACKED INLAND ACROSS THE ERN BIG BEND COASTAL
COUNTIES. NO CHGS ATTM TO ZONES.

13

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 16, 7:46 PM ESTSevere Thunderstorm WarningTAELafayette34 min
Feb 16, 8:21 PM ESTSevere Thunderstorm WarningTAEDixie, Taylor49 min
Feb 16, 8:48 PM ESTSevere Thunderstorm WarningTAELafayette, Madison32 min
Feb 17, 12:10 AM ESTSevere Thunderstorm WarningTAEDecatur30 min
Feb 17, 12:28 AM ESTSevere Thunderstorm WarningTAEBaker32 min

Nearby

Severe 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.