Alert archive / Florida / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 7, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jun 10, 1989, 6:42 PM EDT for Hendry County, Florida. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jun 10, 1989, 6:42 PM EDT (22:42 UTC)
- Expired
- Jun 10, 1989, 7:15 PM EDT
- In force
- 33 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Hendry 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
Tampa Bay, FL (KTBW), launched 12:00Z, 10.7 hours before the alert went out and 177 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
- 1746 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 699 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 28 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 102242
SVRMIA
FLC051-102315-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
642 PM EDT SAT JUN 10 1989
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH FLORIDA
...NORTHWESTERN HENDRY
AT 635 PM RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTH OF DENAUD
AND LA BELLE IN HENDRY COUNTY. THIS THUNDERSTORM HAS JUST REACHED ITS
PEAK STRENGTH AND RESIDENTS OF DENAUD HAVE THE GREATEST POTENTIAL FOR
DAMAGE FROM THIS STORM.
SEEK SHELTER FROM THIS THUNDERSTORM IN A STRONG BUILDING. DAMAGING
WIND..HAIL..VERY HEAVY RAIN..AND DEADLJY LIGHTNING ARE ALL POSSIBLE
IN THIS THUNDERSTORM. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES
AND STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.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 10, 5:41 PM EDT, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MIAMI FL 540 PM EDT SAT JUN 10 1989 ...THUNDERSTORMS DEVELOPING OVER NORTHERN COLLIER COUNTY... AT 528 PM RADAR INDICATED A CLUSTER OF THUNDERSTORMS THAT WERE PRODUCING VERY HEAVY RAIN FROM EAST OF BONITA SPRINGS TO IMMOKALEE. IN ADDITION TO THE HEAVY RAIN FREQUENT LIGHTNING AND BRIEFLY STRONG AND GUSTY WINDS WILL OCCUR. ELSEWHERE...SCATTERED SHOWERS AND A FEW THUNDERSTORMS WITH VERY HEAVY RAIN WERE ALONG THE WEST COAST SEA BREEZE FROM NORTH OF FT MYERS TO SOUTH OF EVERGLADES CITY...AND ALONG THE EAST COAST SEA BREEZE FROM THE EAST SIDE OF LAKE OKEECHOBEE TO WEST OF VERO BEACH. MOVEMENT WAS SLOWLY NORTH AT LESS THAN 10 MILES AN HOUR. AN ISOLATED SHOWER MOVING WEST AT 10 MILES AN HOUR WAS OVER THE FLORIDA STRAITS OFFSHORE ANDROS ISLAND.
Special weather statement, Jun 10, 6:24 PM EDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 624 PM EDT SAT JUN 10 1989 ...THUNDERSTORMS OVER GLADES AND HENDRY COUNTIES... SEVERAL THUNDERSTORMS HAVE BEEN MOVING SLOWLY NORTHWARD THROUGH CENTRAL COLLIER AND WESTERN HENDRY COUNTIES FOR THE LAST TWO HOURS. AT 605 PM A LARGE THUNDERSTORM WAS LOCATED OVER THE HENDRY CORRECTION INSTITUTION. THIS THUNDERSTORM WILL PRODUCE VERY HEAVY RAIN AND FREQUENT LIGHTNING STRIKES AS WELL AS STRONG GUSTY WINDS FOR THE NEXT HOUR AS IT MOVES NORTH. ANOTHER THUNDERSTORM NEAR IMMOKALEE IN COLLIER EXTENDS TO FELDA IN HENDRY COUNTY. THIS THUNDERSTORM HAS ALSO BEEN PRODUCING HEAVY RAIN AND FREQUENT LIGHTNING BUT SHOULD BE DECREASING RAPIDLY< IN STRENGTH VERY SHORTLY.
Nearby
Severe Thunderstorm Warnings in Florida, 1989Every severe thunderstorm warning in 1989
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.