Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 37, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 22, 1990, 3:02 PM CDT for Gulf County, Florida. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Apr 22, 1990, 3:02 PM CDT (20:02 UTC)
- Expired
- Apr 22, 1990, 3:30 PM CDT
- In force
- 28 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Gulf County, FL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Apalachicola Mun, FL (KAQQ), launched 12:00Z, 8.0 hours before the alert went out and 32 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1438 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -30 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 KAQQ 222002 SVRAQQ FLC045-222030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE APALACHICOLA FLORIDA 402 PM EDT SUN APR 22 1990 THE NATIONAL WEATHER SERVICE IN APALACHICOLA FLORIDA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS IN FLORIDA ...GULF COUNTY A SEVERE THUNDERSTORM WAS LOCATED JUST NORTHEAST OF WEWAHITCHKA MOVING SOUTHEAST AT 15 MILES AN HOUR. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
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 22, 2:36 PM CDT, 26 minutes before
FLZ004-222025- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE APALACHICOLA FL 330 PM EDT SUN APR 22 1990 AT 325 PM EDT...WIDELY SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN STRONG WINDS AND LIGHTING HAVE DEVELOPED OVER THE FLORIDA PANHANDLE. THE STRONGEST STORMS WERE 30 MILES NORTH OF APALACHICOLA AND 25 MILES NORTHEAST OF PENSACOLA. THUNDERSTORMS AND SHOWERS EXTENDED FROM CROSS CITY TO WEST OF PENSACOLA AND OVER THE APALACHEE BAY. MOVEMENT WAS SOUTHEAST AT 20 MILES AN HOUR.
Special weather statement, Apr 22, 2:57 PM CDT, 5 minutes before
FLZ003-005-GAZ011-221938 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 350 PM EDT SUN APR 22 1990 AT 345 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED SEVERAL STRONG THUNDERSTORMS LOCATED IN THE WESTERN FLORIDA PANHANDLE AND BIG BEND AREA OF FLORIDA. THE STRONGEST STORMS WERE IN SOUTHERN LIBERTY COUNTY...SOUTHERN WAKULLA COUNTY AND ALONG THE COAST OF CENTRAL TAYLOR COUNTY. THESE THUNDERSTORMS WERE MOVING VERY SLOWLY SOUTH SOUTHEAST AT 5 TO 10 MPH.
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; the sounding from the Mesonet's radiosonde archive.