Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 93, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Sep 16, 1990, 5:12 PM EDT for Liberty County, Florida. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Sep 16, 1990, 5:12 PM EDT (21:12 UTC)
- Expired
- Sep 16, 1990, 5:45 PM EDT
- In force
- 33 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
County Liberty 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, 9.2 hours before the alert went out and 58 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
- 3140 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 649 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- -30 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 162113 SVRTLH FLC077-162145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TALLAHASSEE FL 512 PM EDT SUN SEP 16 1990 THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH FLORIDA ...SOUTHWESTERN LIBERTY COUNTY AT 510 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTHWESTERN LIBERTY COUNTY NEAR THE TOWN OF SUMATRA MOVING SOUTHEAST AT 5 TO 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 16, 5:01 PM EDT, 11 minutes before
FLZ005-162200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TALLAHASSEE FL 500 PM EDT SUN SEP 1990 AT 455 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE THUNDERSTORM IN SOUTHWESTERN LIBERTY COUNTY NEAR THE TOWN OF SUMATRA AND ALSO A STORM IN NORTHEASTERN WAKULLA COUNTY NEAR THE TOWN OF WAKULLA. ANOTHER THUNDERSTORM WAS LOCATED IN SOUTHWESTERN MADISON COUNTY JUST SOUTH OF GREENVILLE. THESE STORMS WERE MOVING SLOWLY TO THE SOUTH. PERSONS IN THE VICINITY OF THESE STORMS CAN EXPECT VERY HEAVY RAINFALL IN A SHORT PERIOD OF TIME...STRONG GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING AND POSSIBLE SOME HAIL AS THESE STORMS MOVE THROUGH THE AREA. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER STATEMENTS.
Special weather statement, Sep 16, 5:08 PM EDT, 4 minutes before
FLZ005-162200- SPECIAL WEATHER STATEMENT...CORRECTED FOR DATE NATIONAL WEATHER SERVICE TALLAHASSEE FL 500 PM EDT SUN SEP 16 1990 AT 455 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LARGE THUNDERSTORM IN SOUTHWESTERN LIBERTY COUNTY NEAR THE TOWN OF SUMATRA AND ALSO A STORM IN NORTHEASTERN WAKULLA COUNTY NEAR THE TOWN OF WAKULLA. ANOTHER THUNDERSTORM WAS LOCATED IN SOUTHWESTERN MADISON COUNTY JUST SOUTH OF GREENVILLE. THESE STORMS WERE MOVING SLOWLY TO THE SOUTH. PERSONS IN THE VICINITY OF THESE STORMS CAN EXPECT VERY HEAVY RAINFALL IN A SHORT PERIOD OF TIME...STRONG GUSTY WINDS...FREQUENT DANGEROUS LIGHTNING AND POSSIBLE SOME HAIL AS THESE STORMS MOVE THROUGH THE AREA. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER STATEMENTS.
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 5:10 PM EDT | Severe Thunderstorm Warning | TAE | Franklin | 65 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.