Alert archive / Florida / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 183, NWS Tallahassee, FL

September 29, 1998Bay County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Sep 29, 1998, 9:13 AM CDT for Bay County, Florida. It was in force for 77 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
Sep 29, 1998, 9:13 AM CDT (14:13 UTC)
Expired
Sep 29, 1998, 10:30 AM CDT
In force
77 min
Issued by
NWS Tallahassee, FL
Area
Whole counties

County Bay County, FL

The radar

The Eglin Afb radar (KEVX), 46 km from the middle of the area, began a volume at 14:17 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
Sep 29, 9:15 AM CDTTornado F1Westbay, FLAn F1 tornado touched down in West Bay. The tornado damaged the West Bay Holiness Community Church off CR 388. The church's roof was lifted off and its steeple toppled. The tornado skipped northward across FL 79 and Vinson Rd, north of the Woodville subdivis

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
Sep 28, 10:00 PM CDTTornado WatchSPC12 hr

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 2.2 hours before the alert went out and 87 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°0°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

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 Sep 29, 9:10 AM CDT, 3 minutes earlier.

Area forecast discussion, Sep 29, 9:10 AM CDT, 3 minutes before
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In the hours before

Special weather statement, Sep 29, 5:00 AM CDT, 4 hours 13 minutes before
ALZ065>069-FLZ007>015-017>019-026>029-034-039-GAZ121>131-142>148-
155>161-GMZ750-755-770-775-291200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
600 AM EDT TUE SEP 29 1998

...FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE TALLAHASSEE
WEATHER SERVICE AREA TODAY...
...TORNADO WATCH IS IN EFFECT FOR THE FLORIDA PANHANDLE...
SOUTHEAST ALABAMA...PORTIONS OF THE FLORIDA BIG BEND AND PORTIONS
OF SOUTHWEST GEORGIA UNTIL 11 AM EDT(10 AM CDT) THIS MORNING...
...SMALL CRAFT SHOULD REMAIN IN PORT UNTIL WINDS AND SEAS
SUBSIDE...

TROPICAL STORM GEORGE WAS LOCATED NEAR MOBILE ALABAMA EARLIER THIS
MORNING IS EXPECTED TO MOVE SLOWLY TO THE EAST NORTHEAST TODAY.  AS
GEORGE DRAWS CLOSER TO OUR AREA TODAY...SHOWERS AND THUNDERSTORMS
WITH VERY HEAVY RAIN WILL SPREAD ACROSS THE AREA AND WILL LIKELY
PRODUCE FLOODING PROBLEMS IN FLOOD PRONE AREAS. IN ADDITION TO
STRONG GUSTY WINDS...SOME OF THE THUNDERSTORMS MAY PRODUCE ISOLATED
TORNADOES. TROPICAL STORM GEORGE IS EXPECTED TO WEAKEN TODAY AND
WILL LIKELY BE DOWNGRADED TO A TROPICAL DEPRESSION LATER TODAY.

SPOTTER ACTIVATION IS REQUESTED TODAY AND MAY BE NEEDED TONIGHT AS
WELL. REPORTS OF WIND DAMAGE...HIGH WINDS...COASTAL FLOODING AND
OTHER SEVERE WEATHER REPORTS SHOULD BE FORWARDED TO LOCAL LAW
ENFORCEMENT AGENCIES OR THE NATIONAL WEATHER SERVICE IN TALLAHASSEE
AT 850-942-8999.

FOR ADDITIONAL INFORMATION ON HURRICANE GEORGES...PLEASE REFER TO
HURRICANE LOCAL STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE
IN TALLAHASSEE...OR VISIT THE WEB SITES ON THE INTERNET AT
HTTP://WWW.NWS.FSU.EDU/ OR HTTP://WWW.NHC.NOAA.GOV/.
Special weather statement, Sep 29, 5:00 AM CDT, 4 hours 13 minutes before
ALZ065>069-FLZ007>015-017>019-026>029-034-039-GAZ121>131-142>148-
155>161-GMZ750-755-770-775-291200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
600 AM EDT TUE SEP 29 1998

...FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE TALLAHASSEE
WEATHER SERVICE AREA TODAY...
...TORNADO WATCH IS IN EFFECT FOR THE FLORIDA PANHANDLE...
SOUTHEAST ALABAMA...PORTIONS OF THE FLORIDA BIG BEND AND PORTIONS
OF SOUTHWEST GEORGIA UNTIL 11 AM EDT(10 AM CDT) THIS MORNING...
...SMALL CRAFT SHOULD REMAIN IN PORT UNTIL WINDS AND SEAS
SUBSIDE...

TROPICAL STORM GEORGE WAS LOCATED NEAR MOBILE ALABAMA EARLIER THIS
MORNING IS EXPECTED TO MOVE SLOWLY TO THE EAST NORTHEAST TODAY.  AS
GEORGE DRAWS CLOSER TO OUR AREA TODAY...SHOWERS AND THUNDERSTORMS
WITH VERY HEAVY RAIN WILL SPREAD ACROSS THE AREA AND WILL LIKELY
PRODUCE FLOODING PROBLEMS IN FLOOD PRONE AREAS. IN ADDITION TO
STRONG GUSTY WINDS...SOME OF THE THUNDERSTORMS MAY PRODUCE ISOLATED
TORNADOES. TROPICAL STORM GEORGE IS EXPECTED TO WEAKEN TODAY AND
WILL LIKELY BE DOWNGRADED TO A TROPICAL DEPRESSION LATER TODAY.

SPOTTER ACTIVATION IS REQUESTED TODAY AND MAY BE NEEDED TONIGHT AS
WELL. REPORTS OF WIND DAMAGE...HIGH WINDS...COASTAL FLOODING AND
OTHER SEVERE WEATHER REPORTS SHOULD BE FORWARDED TO LOCAL LAW
ENFORCEMENT AGENCIES OR THE NATIONAL WEATHER SERVICE IN TALLAHASSEE
AT 850-942-8999.

FOR ADDITIONAL INFORMATION ON HURRICANE GEORGES...PLEASE REFER TO
HURRICANE LOCAL STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE
IN TALLAHASSEE...OR VISIT THE WEB SITES ON THE INTERNET AT
HTTP://WWW.NWS.FSU.EDU/ OR HTTP://WWW.NHC.NOAA.GOV/.

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, 8:24 AM CDTTornado WarningTAEWashington31 min
Sep 29, 8:49 AM CDTTornado WarningTAEHolmes46 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
Sep 28, 11:27 PM CDTTornado WarningTAEEarly38 min
Sep 28, 11:35 PM CDTTornado WarningTAEMiller25 min
Sep 29, 3:36 AM CDTTornado WarningTAEGrady, Mitchell49 min
Sep 29, 4:22 AM CDTTornado WarningTAEGrady, Mitchell63 min
Sep 29, 5:14 AM CDTTornado WarningTAEDougherty, Mitchell61 min
Sep 29, 3:25 PM CDTTornado WarningTAEDecatur, Seminole30 min
Sep 29, 3:30 PM CDTTornado WarningTAEWorth30 min
Sep 29, 4:25 PM CDTTornado WarningTAEDecatur35 min
Sep 29, 4:36 PM CDTTornado WarningTAEWorth29 min
Sep 29, 12:27 AM CDTTornado WarningTAEGeneva23 min
Sep 29, 1:35 AM CDTTornado WarningTAEGeneva30 min
Sep 29, 2:34 AM CDTTornado WarningTAECoffee36 min
Sep 29, 2:51 AM CDTTornado WarningTAEGeneva19 min
Sep 29, 7:08 AM CDTTornado WarningTAEGeneva47 min
Sep 29, 7:51 AM CDTFlash Flood WarningTAEGeneva6 hr
Sep 29, 9:05 AM CDTTornado WarningTAEGeneva45 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.