Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 8, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 10, 1990, 8:32 AM CST for Okaloosa County, Florida. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- Feb 10, 1990, 8:32 AM CST (14:32 UTC)
- Expired
- Feb 10, 1990, 9:30 AM CST
- In force
- 58 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Okaloosa 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, 2.5 hours before the alert went out and 185 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
- 1210 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 261 m²/s²
- 0-3 km storm-relative helicity
- 267 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 10.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KPNS 101429
SVRPNS
FLC091-101530-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PENSACOLA FL
832 AM CST SAT FEB 10 1990
THE NATIONAL WEATHER SERVICE IN PENSACOLA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTHWEST FLORIDA
...OKALOOSA
AT 825 AM...RADAR INDICATED A STRONG THUNDERSTORM OVER EASTERN SANTA
ROSA COUNTY MOVING TO THE NORTHEAST AT 45 MPH...TOWARD CENTRAL
OKALOOSA COUNTY.
THIS STORM IS PART OF A GROUP OF STORMS THAT HAVE PRODUCED SEVERE
WEATHER OVER THE WESTERN FLORIDA PANHANDLE...
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE lTHUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.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, Feb 10, 5:28 AM CST, 3 hours 4 minutes before
FLZ005-GAZ011-031200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 625 AM EST SAT FEB 10 1990 ...TORNADO WATCH NUMBER 29 REAMINS IN EFFECT UNTIL 10 AM CST... AT 620 AM RADAR INDICATED A 40 MILE WIDE AREA OF SHOWERS AND THUNDERSTORMS FROM THOMASVILLE GEORGIA TO JUST EAST OF PANAMA CITY FLORIDA. THESE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MPH. HOWEVER...AT THIS TIME NO SEVERE WEATHER HAS BEEN REPORTED IN THE W ATCH AREA. PERSONS LIVING IN NORTH FLORIDA AND SOUTHWEST GEORGIA IN AND NEAR THE WATCH AREA SHOULD BE ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER THIS MORNING. STAY TUNE TO NOAA WEATHER RADIO FOR FURTHER UPDATES. JCB
Special weather statement, Feb 10, 6:30 AM CST, 2 hours 2 minutes before
FLZ005-GAZ011-031200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 725 AM EST SAT FEB 10 1990 ...TORNADO WATCH NUMBER 29 REAMINS IN EFFECT UNTIL 10 AM CST... AT 720 AM RADAR INDICATED A LARGE AREA OF SHOWERS AND A FEW THUNDERSTORMS OVER NORTH FLORIDA SOUTHWEST GEORGIA AND EXTREME SOUTHEAST ALABAMA. THESE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 30 TO 35 MPH. HOWEVER...AT THIS TIME NO SEVERE WEATHER HAS BEEN REPORTE?D IN THE WATCH AREA. PERSONS LIVING IN NORTH FLORIDA AND SOUTHWEST GEORGIA IN AND NEAR THE WATCH AREA SHOULD BE ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER CONDITIONS THIS MORNING. STAY TUNE TO NOAA WEATHER RADIO FOR FURTHER UPDATES. JCB
Special weather statement, Feb 10, 6:40 AM CST, 1 hour 52 minutes before
FLZ005-GAZ011-031200- SPECIAL WEATHER STATEMEN...CORRECTION NATIONAL WEATHER SERVICE TALLAHASSEE FL 725 AM EST SAT FEB 10 1990 ...TORNADO WATCH NUMBER 29 REAMINS IN EFFECT UNTIL 10 AM CST... AT 720 AM RADAR INDICATED A LARGE AREA OF SHOWERS AND A FEW THUNDERSTORMS OVER NORTH FLORIDA SOUTHWEST GEORGIA AND EXTREME SOUTHEAST ALABAMA. THESE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 30 TO 35 MPH. PERSONS LIVING IN NORTH FLORIDA AND SOUTHWEEST GEORGIA IN AND NEAR THE WATCH AREA SHOULD BE ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER CONDITIONS THIS MORNING. STAY TUNE TO NOAA WEATHER RADIO FOR FURTHER UPDATES. JCB
Special weather statement, Feb 10, 7:35 AM CST, 57 minutes before
FLZ003-005-GAZ011-012-101430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 835 AM EST FRI FEB 10 1990 ...TORNADO WATCH NUMBER 29 REMAINS IN EFFECT UNTIL 10 AM CST FOR THE NORTHWEST FLORIDA COUNTIES OF JACKSON AND CALHOUN..AND THE SOUTHWEST GEORGIA COUNTIES OF SEMINOLE..DECATUR AND GRADY... ...TORNADO WATCH NUMBER 31 REMAINS IN EFFECT UNTIL NOON EST FOR THE SOUTHWEST GEORGIA COUNTIES OF DECATUR..GRADY..THOMAS AND BROOKS... AT 830 AM NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF SHOWERS AND THUNDERSTORMS COVERING MUCH OF SOUTHWEST GEORGIA AND THE WESTERN FLORIDA PANHANDLE FROM NEAR MOULTRIE GEORGIA TO MARIANNA FLORIDA TO CRESTVIEW. CLUSTERS OF SHOWERS AND THUNDERSTORMS WERE ALSO SOUTHWEST OF TALLAHASSEE FLORIDA TO MADISON FLORIDA. THE STRONGEST STORMS WERE OVER JACKSON COUNTY OF FLORIDA. THESE SHOWERS AND THUNDERSTORMS WILL LIKELY PRODUCE HEAVY RAINFALL..STRONG GUSTY WIND..DANGEzROUS LIGHTNING AND POSSIBLY HAIL. STAY TUNED TO NOAA RADIO FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. GJM
Special weather statement, Feb 10, 7:43 AM CST, 49 minutes before
FLZ003-005-GAZ011-012-101430- SPECIAL WEATHER STATEMENT...CORRECTED FOR DAY OF WEEK NATIONAL WEATHER SERVICE TALLAHASSEE FL 835 AM EST SAT FEB 10 1990 ...TORNADO WATCH NUMBER 29 REMAINS IN EFFECT UNTIL 10 AM CST FOR THE NORTHWEST FLORIDA COUNTIES OF JACKSON AND CALHOUN..AND THE SOUTHWEST GEORGIA COUNTIES OF SEMINOLE..DECATUR AND GRADY... ...TORNADO WATCH NUMBER 31 REMAINS IN EFFECT UNTIL NOON EST FOR THE SOUTHWEST GEORGIA COUNTIES OF DECATUR..GRADY..THOMAS AND BROOKS... AT 830 AM NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF SHOWERS AND THUNDERSTORMS COVERING MUCH OF SOUTHWEST GEORGIA AND THE WESTERN FLORIDA PANHANDLE FROM NEAR MOULTRIE GEORGIA TO MARIANNA FLORIDA TO CRESTVIEW. CLUSTERS OF SHOWERS AND THUNDERSTORMS WERE ALSO SOUTHWEST OF TALLAHASSEE FLORIDA TO MADISON FLORIDA. THE STRONGEST STORMS WERE OVER JACKSON COUNTY OF FLORIDA. THESE SHOWERS AND THUNDERSTORMS WILL LIKELY PRODUCE HEAVY RAINFALL..STRONG GUSTY WIND..DANGEROUS LIGHTNING AND POSSIBLY HAIL. STAY TUNED TO NOAA RADIO FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. GJM
Special weather statement, Feb 10, 8:30 AM CST, 2 minutes before
FLZ003-005-GAZ011-012-101530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 930 AM EST SAT FEB 10 1990 ...TORNADO WATCH NUMBER 29 REMAINS IN EFFECT UNTIL 10 AM CST FOR THE NORTHWEST FLORIDA COUNTIES OF JACKSON AND CALHOUN..AND THE SOUTHWEST GEORGIA COUNTIES OF SEMINOLE..DECATUR AND GRADY... ...TORNADO WATCH NUMBER 31 REMAINS IN EFFECT UNTIL NOON EST FOR THE SOUTHWEST GEORGIA COUNTIES OF DECATUR..GRADY..THOMAS AND BROOKS... AT 925 AM NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE AREA OF SHOWERS AND THUNDERSTORMS COVERING MUCH OF SOUTHWEST GEORGIA. ALSO THE WESTERN FLORIDA PANHANDLE FROM THE TRI-STATE AREA AND ACROSS JACKSON COUNTY TO NEAR PANAMA CITY FLORIDA. SHOWERS AND THUNDERSTORMS WERE ALSO OVER THE GULF WEST AND SOUTHWEST OF PANAMA CITY FOR TWENTY MILES. MOVEMENT OF THE STORMS WAS NORTHEAST AT 35 MPH. THE STRONGEST STORMS WERE OVER JACKSON COUNTY OF FLORIDA. THE JACKSON COUNTY SHERIFFS OFFICE IN MARIANNA FLORIDA REPORTED ONLY VERY HEAVY RAINFALL. HOWEVER THE POTENTIAL STILL EXISTS FOR THESE THUNDERSTORMS TO PRODUCE STRONG GUSTY WIND..DANGEROUS LIGHTNING AND POSSIBLY HAIL. STAY TUNED TO NOAA RADIO FOR FURTHER STATEMENTS AND )POSSIBLE WARNINGS. GJM
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 10, 3:49 AM CST | Severe Thunderstorm Warning | TAE | Escambia, Santa Rosa | 56 min |
| Feb 10, 8:14 AM CST | Tornado Warning | TAE | Escambia, Santa Rosa | 61 min |
| Feb 10, 9:07 AM CST | Tornado Warning | TAE | Gulf | 53 min |
| Feb 10, 9:44 AM CST | Severe Thunderstorm Warning | TAE | Wakulla | 31 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.