Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 50, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at May 21, 1990, 9:48 PM EDT for Franklin County, Florida. It was in force for 42 min.
The area
The counties it named.
The facts
- Issued
- May 21, 1990, 9:48 PM EDT (01:48 UTC)
- Expired
- May 21, 1990, 10:30 PM EDT
- In force
- 42 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Franklin 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 00:00Z, 1.8 hours before the alert went out and 21 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
- 2622 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 654 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAQQ 220151 SVRAQQ FLC037-220230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE APALACHICOLA FLORIDA 948 PM EDT MON MAY 21 1990 THE NATIONAL WEATHER SERVICE IN APALACHICOLA FLORIDA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST FLORIDA ...SOUTHEASTERN FRANKLIN COUNTY AT 948 PM EDT A SEVERE TIMQ=I5WAS LOCATED NEAR APALACHICOLA. THIS THUNDERSTORM HAS PRODUCE WINDS EXCESS OF 53 KNOTS AT THE WEATHER OFFICE IN APALACHICOLA, FLORIDA. MOVEMENT WAS TO THE SOUTHEAST AT 35 MILES AN HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, May 21, 8:00 PM EDT, 1 hour 48 minutes before
FLZ004-220040- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE APALACHICOLA FL 740 PM EDT MON MAY 21 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR GULF AND FRANKLIN COUNTY UNTIL 10 PM EDT... AT 725 PM EDT...SEVERAL STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED IN NORTH FLORIDA AND SOUTHEAST ALABAMA. OVER NORTH FLORIDA... 40 MILES NORTHEAST OF TALLAHASSEE NEAR MADISON AND OVER SOUTHEAST ALABAMA 15 MILES SOUTHEAST OF DOTHAN ALABAMA. ELSEWHERE...LARGE AREA OF SHOWERS AND THUNDERSTORMS MIXED COVERED THE FLORIDA PANHANDLE AND PARTS OF NORTH FLORIDA. SHOWERS AND THUNDERSTORMS WERE ALSO NOTED OVER MOST OF SOUTHEAST ALABAMA AND SOUTHWEST GEORGIA OVER THE GULF =SHOWERS AND THUNDERSTORMS WERE LOCATED FROM PENSACOLA TO OFFSHORE OF ALLIGATOR POINT AND EXTENDED OUT BEYOND 100 MILES. MOVEMENT WAS TO THE SOUTHEAST AT 35 MILES AN HOUR.
Special weather statement, May 21, 8:13 PM EDT, 1 hour 35 minutes before
FLZ003-005-006-007-GAZ011-012-220115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 812 PM EDT (712 PM CDT) MON MAY 21 1990 AT 800 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS FROM JUST NORTH OF DONALDSONVILLE GA TO MARIANA FL TO 10 MILES WEST OF PANAMA CITY. SCATTERED THUNDERSTORMS WERE ALSO INDICATED JUST EAST OF MADISON FL. VERY SMALL HAIL AND GUSTY WINDS OF 40 MPH WERE REPORTED BY AN OFF DUTY NATIONAL WEATHER SERVICE WEATHER OBSERVER 5 MILES WEST OF CHERRY LAKE IN MADISON COUNTY. MOVEMENT WAS EAST AT 25 MPH. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS LIGHTNING...VERY HEAVY RAINFALL AND POSSIBLE SMALL HAIL AS THEY MOVE TPHROUGH THE AREA DURING THE NEXT COUPLE OF HOURS. STAY TUNED TO NOAA WEATHER RADAR FOR ADDITIONAL STATEMENTS ON THESE THUNDERSTORMS. ADB
Special weather statement, May 21, 8:47 PM EDT, 1 hour 1 minute before
FLZ004-220140- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE APALACHICOLA FL 840 PM EDT MON MAY 21 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR GULF AND FRANKLIN COUNTY UNTIL 10 PM EDT... AT 825 PM EDT...A LINE OF NUMEROUS STRONG THUNDERSTORMS EXTENDED FROM SOUTHWEST OF ALBANY GEORGIA TO NORTHWEST OF PANAMA CITY AND ON OUT INTO THE GULF TO 35 MILES SOUTH OF FORT WALTON. THUNDERSTORMS WITH THE HEAVIEST RAIN WERE LOCATED OVER SOUTHWEST GEORGIA... 45 MILES SOUTHWEST OF ALBANY... NEAR BAINBRIDGE AND OVER THE FLORIDA PANHANDLE 35 MILES NORTHWEST OF TALLAHASSEE... NEAR MARIANNA. A LARGE AREA OF SHOWERS AND THUNDERSTORMS MIXED WAS LOCATED OVER SOUTHEAST ALABAMA... SOUTHWEST GEORGIA... AND THE FLORIDA PANHANDLE. OVER THE GULF... THUNDERSTORMS EXTENDED FROM PENSACOLA TO OFFSHORE OF APALACHICOLA AND OUT BEYOND 125 MILES. MOVEMENT WAS TO THE SOUTHEAST AT 35 MILES AN HOUR.
Special weather statement, May 21, 9:08 PM EDT, 40 minutes before
FLZ003-005-006-007-GAZ011-012-220215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 907 PM EDT (807 PM CDT) MON MAY 21 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 296 IN EFFECT UNTIL 1000 PM EDT... ...SEVERE THUNDERSTORM WATCH NUMBER 298 IN EFFECT UNTIL 1100 PM EDT... AT 900 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS FROM JUST EAST OF BAINBRIDGE GA TO QUINCY FL TO MEXICO BEACH. THIS LINE WAS MOVING EAST AT 3O MPH AND WILL MOVE THROUGH LEON COUNTY AND TALLAHASSEE DURING THE NEXT HOUR AND THROUGH WAKULLA COUNTY AND INTO THE APALACHEE BAY DURING THE NEXT HOUR AN A HALF. SRONG GUSTY WINDS...DANGEROUS LIGHTNING...VERY HEAVY RAINFALL AND POSSIBLE SMALL HAIL WILL ACCOMPANY THESE STORMS AS THEY MOVE THROUGH THE AREA. ELSEWHERE...SCATTERED THUNDERSTORMS WERE OVER THE GULF FROM 40 MILES SOUTH OF PANAMA CITY TO 20 SOUTH OF APALACHICOLA. STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS MEDIA FOR ADDITIONAL STATEMENTS ON THESE THUNDERSTORMS. ADB
Special weather statement, May 21, 9:31 PM EDT, 17 minutes before
FLZ003-220230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 931 PM EDT (831 PM CDT) MON MAY 21 1990 ...SEVERE THUNDERSTORM WATCH IS NO LONGER IN EFFECT FOR JACKSON AND CALHOUN COUNTIES OF NORTHWEST FLORIDA... ADB
Special weather statement, May 21, 9:32 PM EDT, 16 minutes before
FLZ004-220240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE APALACHICOLA FL 930 PM EDT MON MAY 21 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR GULF AND FRANKLIN COUNTY UNTIL 10 PM EDT... AT 925 PM EDT...A LINE OF NUMEROUS STRONG THUNDERSTORMS EXTENDED FROM SOUTH OF ALBANY GEORGIA TO SOUTHEAST OF PANAMA CITY AND ON OUT INTO THE GULF TO 35 MILES SOUTH OF PANAMA CITY. THUNDERSTORMS WITH THE HEAVIEST RAIN WERE LOCATED OVER SOUTHWEST GEORGIA... 25 MILES NORTH OF TALLAHASSEE.. NORTH OF THE FLORIDA/GEORGIA STATE AND OVER THE FLORIDA PANHANDLE 35 MILES WEST OF TALLAHASSEE NEAR BLOUNTSTOWN. A LARGE AREA OF SHOWERS AND THUNDERSTORMS MIXED WAS LOCATED OVER SOUTHEAST ALABAMA... SOUTHWEST GEORGIA... AND THE FLORIDA PANHANDLE. OVER THE GULF... THUNDERSTORMS EXTENDED FROM PENSACOLA TO OFFSHORE OF APALACHICOLA AND OUT 100 MILES MOVEMENT WAS TO THE SOUTHEAST AT 35 MILES AN HOUR.
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 10:02 PM EDT | Severe Thunderstorm Warning | TAE | Franklin | 43 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; the sounding from the Mesonet's radiosonde archive.