Alert archive / Florida / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 13, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jun 4, 1991, 5:21 PM EDT for Broward County, Florida. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Jun 4, 1991, 5:21 PM EDT (21:21 UTC)
- Expired
- Jun 4, 1991, 6:30 PM EDT
- In force
- 69 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Broward County, FL
The nearest sounding before it
Key West, FL (KEYW), launched 12:00Z, 9.4 hours before the alert went out and 218 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
- 2005 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 817 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 1 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 KMIA 042124 SVRMIA FLC011-042230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MIAMI FL 521 PM EDT TUE JUN 4 1991 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST FLORIDA ...NORTHEASTERN BROWARD COUNTY AND THE ADJACENT COASTAL WATERS ALONG THE SOUTHEAST FLORIDA COAST FROM DEERFIELD BEACH TO PORT EVERGLADES. RADAR INDICATES A SEVERE THUNDERSTORM OVER NORTHEAST BROWARD COUNTY IN THE DEERFIELD BEACH, POMPANO BEACH, NORTH LAUDERDALE AND OAKLAND PARK REGION. SOME TREE DAMAGE WAS REPORTED IN THE NORTH FORT LAUDERDALE AREA AT 5:10 PM. THE THUNDERSTORM IS MOVING SLOWLY EASTWARD. BOATERS IN WARNED AREA SHOULD BE ALERT FOR STRONG GUSTY WINDS AND ROUGH SEAS AS THIS THUNDERSTORM MOVES EASTWARD OFF SHORE. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM. SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES.
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, Jun 4, 3:52 PM EDT, 1 hour 29 minutes before
FLZ016-042100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WEST PALM BEACH FL 355 PM EDT TUE JUN 4 1991 AT 355PM EDT...WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS WITH HEAVY RAINS OVER NORTHERN OKEECHOBEE COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE EAST ABOUT 15 MILES AN HOUR. PERSONS IN NORTHERN OKEECHOBEE COUNTY SHOULD BE ALERT FOR STRONG GUSTY WINDS AND HEAVY RAINS WITH THESE STORMS DURING THE NEXT HOUR OR SO. , NNNN
Special weather statement, Jun 4, 4:07 PM EDT, 1 hour 14 minutes before
FLZ020-042215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WEST PALM BEACH FL 407 PM EDT TUE JUN 4 1991 AT 4PM EDT...WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS WITH HEAVY RAINS IN OV
Nearby
Severe Thunderstorm Warnings in Florida, 1991Every severe thunderstorm warning in 1991
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.