Alert archive / Florida / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 13, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at May 28, 1992, 2:29 PM EDT for Duval County, Nassau County, Florida. It was in force for 46 min.
The area
The counties it named.
The facts
- Issued
- May 28, 1992, 2:29 PM EDT (18:29 UTC)
- Expired
- May 28, 1992, 3:15 PM EDT
- In force
- 46 min
- Issued by
- NWS Jacksonville, FL
- Area
- Whole counties
Counties Duval County, FL, Nassau County, FL
The nearest sounding before it
Jacksonville, FL (KAYS), launched 12:00Z, 6.5 hours before the alert went out and 3 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
- 625 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 579 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAX 281836 SVRJAX FLC031-089-281915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE JACKSONVILLE FL 229 PM EDT THU MAY 28 1992 THE NATIONAL WEATHER SERVICE IN JACKSONVILLE FL HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 315 PM EDT IN NORTHEAST FLORIDA ...NORTHEASTERN DUVAL COUNTY...EASTERN NASSAU COUNTY AND ...COASTAL WATERS AT 230 PM EDT RADAR DETECTS A SEVERE THUNDERSTORM LOCATED FROM THE NASSAU RIVER TO 15 MILES OFFSHORE CUMBERLAND ISLAND, GA. THE SEVERE THUNDERSTORM IS DRIFTING SOUTHEAST. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...D}EADLY 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 28, 1:51 PM EDT, 38 minutes before
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yVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER STATEMENTS AND WARNINGS.
Nearby
Severe Thunderstorm Warnings in Florida, 1992Every severe thunderstorm warning in 1992
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.