Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 41, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 28, 1990, 3:03 PM CDT for Holmes County, Florida. It was in force for 27 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
- Apr 28, 1990, 3:03 PM CDT (20:03 UTC)
- Expired
- Apr 28, 1990, 3:30 PM CDT
- In force
- 27 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Holmes County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 28, 3:15 PM CDT | Thunderstorm Wind 0 | Holmes, FL |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Apalachicola Mun, FL (KAQQ), launched 12:00Z, 8.1 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 332 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- -38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPNS 282001 SVRPNS FLC059-282030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PENSACOLA FL 303 PM CDT SAT APR 28 1990 THE NATIONAL WEATHER SERVICE IN PENSACOLA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST FLORIDA ...HOLMES COUNTY A SEVERE THUNDERSTORM WAS LOCATED OVER THE NORTHEAST CORNER OF WALTON COUNTY OF FLORIDA AND WAS MOVING TOWARDS THE TOWN OF LEONIA IN WEST HOLMES COUNTY OF FLORIDA. THE STORM WAS MOVING A LITTLE SOUTH OF DUE EAST ABOUT 35 MILES AN HOUR. 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 SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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.
In the hours before
Special weather statement, Apr 28, 1:13 PM CDT, 1 hour 50 minutes before
FLZ006-282015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 211 PM EDT SAT APR 28 1990 ...TORNADO WATCH REMAINS IN EFFECT FOR DIXIE AND TAYLOR COUNTIES... AT 200 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS FROM JUST SOUTH OF PERRY FLORIDA EXTENDING SOUTHWEST INTTHE GULF TO 30 MILES SOUTH OF ST. MARKS. MOVEMENT WAS EAST AT 6 MPH. THE HEAVIEST RAINFALL WAS INDICATED OVER THE GULF 25 MILES SOUTH OF THE JEFFERSON COUNTY COAST. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...HEAVY RAIN AND POSSIBLE SMALL HAIL AS THEY MOVE OVER THE APALACHEE BAY AND ACROSS TAYLOR AND DIXIE COUNTIES DURING THE NEXT COUPLE OF HOURS. "STAY TUNED TO NOAA WEATHER RADIO AND OTHER NEWS MEDIA FOR ADDITIONAL STATEMENTS ON THESE THUNDERSTORMS. ADB
Special weather statement, Apr 28, 2:52 PM CDT, 11 minutes before
FLZ004-240140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE APALACHICOLA FL 340 PM EDT SAT APR 28 1990 ...TORNADO WATCH IN SOUTH ALABAMA AND WEST GEORGIA UNTIL 5PM EDT... ...TORNADO WATCH IN NORTH FLORIDA UNTIL 5 PM EDT... AT 330 PM EDT...THERE WERE SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN IN SOUTHEAST ALABAMA...SOUTHWEST GEORGIA... AND NORTH FLORIDA PENINSULA. THE STRONGEST THUNDERSTORMS WERE IN SOUTHEAST ALABAMA FROM 40 MILES NORTHWEST OF DOTHAN ALABAMA TO 40 MILES NORTHEAST OF PENSACOLA FLORIDA. THERE WERE ALSO SCATTERED THUNDERSTORMS SOME WITH HEAVY RAIN FROM 100 MILES EAST OF APALACHICOLA FLORIDA TO 50 MILES SOUTH OF JACKSONVILLE FLORIDA. M5OVEMENT OF ALABAMA STORMS WAS EAST AT 35 MILES AN HOUR MOVEMENT OF NORTH FLORIDA STORMS WAS NORTHEAST AT 10 MILES AN HOUR.
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 2:33 PM CDT | Severe Thunderstorm Warning | TAE | Walton | 57 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1990Every severe thunderstorm warning in 1990
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.