Alert archive / Florida / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 6, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 10, 1987, 3:14 PM EDT for Miami-Dade County, Florida. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Aug 10, 1987, 3:14 PM EDT (19:14 UTC)
- Expired
- Aug 10, 1987, 4:15 PM EDT
- In force
- 61 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Miami-Dade 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
Key West, FL (KEYW), launched 12:00Z, 7.2 hours before the alert went out and 169 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
- 3522 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 752 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 32 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 101914
SVRMIA
FLC025-102015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
314 PM EDT MON AUG 10 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 415 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST FLORIDA
...DADE
A FUNNEL CLOUD WAS REPORTED BY THE PUBLIC NEAR S.W. 137TH AVENUE AND
CORAL WAY AROUND 3:05 P.M. SEVERAL STRONG THUNDERSTORMS ARE PRESENTLY
OCCURRING OVER PORTIONS OF DADE COUNTY AND MORE MAY DEVELOP. THESE
THUNDERSTORMS MAY CONTAIN DAMAGING STRONG WINDS AND POSSIBLE SMALL
HAIL.
IF THREATENING WEATHER APPROACHES..YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY..AND YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY
TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER
SERVICE OFFICE.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, Aug 10, 1:45 PM EDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MIAMI FL 145 PM EDT MON AUG 10 1987 AT 133 PM CLUSTERS OF THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED DEVELOPING OVER DADE AND SOUTHERN BROWARD COUNTIES. THESE THUNDERSTORMS SHOULD BRING SOME RELIEF FROM THE EXCESSIVE HEAT THIS AFTERNOON... BUT RESIDENTS AND OTHER CONCERNED INTERESTS SHOULD BE AWARE AS THESE THUNDERSTORMS WILL REDUCE VISIBILITIES IN PERIODS OF VERY HEAVY RAINS... CAUSE FREQUENT LIGHTNING STRIKES...STRONG GUSTY WINDS...AND POSSIBLE POOLING OF WATER IN POOR DRAINAGE AREAS AND ROADS. ELSEWHERE...CLUSTERS OF THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUED FROM THE NORTHERN AND WESTERN BAHAMAS SOUTH TO THE CAY SAL BANK... AND OVER THE SOUTHWESTERN SECTIONS OF THE SOUTHERN PENINSULA NORTH AND WEST OF A EVERGLADES CITY/HOMESTEAD LINE. MOVEMENT WAS SOUTHWEST 10 MILES AN HOUR.
Special weather statement, Aug 10, 2:47 PM EDT, 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WEST PALM BEACH FL 245 PM EDT MON AUG 10 1987 ...STRONG THUNDERSTORM OVER WEST LAKE OKEECHOBEE... RADAR SHOWED A STRONG THUNDERSTORM STRADDLING THE WEST PART OF LAKE OKEECHOBEE AND EAST GLADES AND HENDRY COUNTIES. THE THUNDERSTORM WAS MOVING TO THE SOUTH AT 15 MPH WITH GUSTY WIND... FREQUENT LIGHTNING...AND HEAVY RAIN. BOATERS SHOULD SEEK SAFE HARBOR AND LAKESHORE RESIDENTS SHOULD TAKE COVER IF THREATENING WEATHER APPROACHES. REPORT SEVERE WEATHER OCCURENCES TO YOUR LAW ENFORCEMENT AGENCY AND STAY TUNED TO NOAA WEATHER RADIO FOR POSSIBLE UPDATES.
Nearby
Severe Thunderstorm Warnings in Florida, 1987Every severe thunderstorm warning in 1987
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.