Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 91, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Sep 11, 1990, 6:01 PM EDT for Leon County, Florida. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Sep 11, 1990, 6:01 PM EDT (22:01 UTC)
- Expired
- Sep 11, 1990, 6:45 PM EDT
- In force
- 44 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Leon 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, 10.0 hours before the alert went out and 107 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
- NaN m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 41 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 KTLH 112215 SVRTLH FLC073-112245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TALLAHASSEE FL 601 PM EDT TUE SEP 11 1990 THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH FLORIDA ...LEON COUNTY AT 600 PM EDT NATIONAL WEATHER SERVICE RADAR AND PUBLIC REPORTS INDICATED A SEVERE THUNDERSTORM IN EASTERN LEON COUNTY MOVING WEST AT 10 MPH. 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, Sep 11, 4:46 PM EDT, 1 hour 15 minutes before
FLZ003-003-005-006-GAZ011-112245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 445 PM EDT (345 PM CDT) TUE SEP 11 1990 AT 440 PM NATIONAL WEATHER SERVICE RADAR SHOWED SCATTERED THUNDERSTORMS AND SHOWERS OVER NORTH FLORIDA AND SOUTHWEST GEORGIA. THESE THUNDERSTORMS EXTENDED FROM VALDOSTA GEORGIA TO TO PERRY FLORIDA AND WESTWARD TO TALLAHASSEE AND FROM PANAMA CITY TO CRESTVIEW. THESE THUNDERSTORMS SHOWED VERY LITTLE MOVEMENT DURING THE PAST HOUR. THESE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...VERY HEAVY RAINFALL...FREQUENT LIGHTNING AND POSSIBLE SMALL HAIL DURING THE NEXT TWO TO THREE HOURS. STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS MEDI A FOR ADDITIONAL STSTEMENTS ON THESE THUNDERSTORMS. ADB...11/2045Z DUVAL
Special weather statement, Sep 11, 5:59 PM EDT, 2 minutes before
FLZ003-003-005-006-GAZ011-120000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 600 PM EDT (500 PM CDT) TUE SEP 11 1990 AT 555 EDT PM NATIONAL WEATHER SERVICE RADAR SHOWED SCATTERED THUNDERSTORMS AND SHOWERS OVER THE FLORIDA PANHANDLE...SOUTHWEST GEORGIA AND SOUTHWEST ALABAMA. THESE THUNDERSTORMS EXTENDED FROM MOULTRIE GEORGIA TO JUST EAST OF TALLAHASSEE AND FROM 20 MILES WEST OF DOTHAN ALABAMA TO DEFUNIAK SPRINGS FLORIDA TO PANAMA CITY. THESE THUNDERSTORMS SHOWED VERY LITTLE MOVEMENT DURING THE PAST HOUR. THESE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...VERY HEAVY RAINFALL...FREQUENT LIGHTNING AND POSSIBLE SMALL HAIL DURING THE NEXT TWO TO THREEg HOURS. STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS MEDIA FOR ADDITIONAL STATEMENTS ON THESE THUNDERSTORMS. ADB...11/2200Z
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.