Alert archive / Florida / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 87, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 2, 1999, 4:31 PM EDT for Miami-Dade County, Florida. It was in force for 49 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 2, 1999, 4:31 PM EDT (20:31 UTC)
- Expired
- Aug 2, 1999, 5:20 PM EDT
- In force
- 49 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Miami-Dade County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 2, 5:10 PM EDT | Thunderstorm Wind 50 | Homestead, FL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 8.5 hours before the alert went out and 31 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
- 893 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMIA 022032 RRA SVRMIA FLC025-022120- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 431 PM EDT MON AUG 2 1999 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN DADE COUNTY IN SOUTHEASTERN FLORIDA * UNTIL 520 PM EDT * AT 428 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM OVER THE EVERGLADES OF WESTERN MIAMI-DADE COUNTY NEAR SHARK VALLEY. THE STORM WAS DRIFTING SLOWLY WEST. IF YOU ARE CAUGHT OUTSIDE...SEEK REFUGE FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM.
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
Local storm report, Aug 2, 4:01 PM EDT, 30 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
401 PM EDT MON AUG 02 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0250 PM LAUDERDALE LAKES FL 52 MPH TSTM GUST
08/02/99 BROWARD WIND ESTIMATED BY SPOTTER
0250 PM LAUDERDALE LAKES FL .5 INCH HAIL
08/02/99 BROWARD SPOTTER REPORTED
0250 PM PLANTATION FL
08/02/99 BROWARD *** 1 INJ ***
28 YEAR OLD MALE STRUCK BY
LIGHTNING NEAR I-595 AND
UNIVERSITY DR. SUSTAINED
SECOND-DEGREE BURNS ON
UPPER PART OF BODY
0255 PM LAUDERDALE LAKES FL 1 INCH HAIL
08/02/99 BROWARD PUBLIC REPORT
0255 PM PLANTATION FL .75 INCH HAIL
08/02/99 BROWARD REPORT FROM CHANNEL 7 NEWS
0255 PM LAUDERDALE BY THE SEA FL 50 MPH TSTM GUST
08/02/99 BROWARD ESTIMATED BY PUBLICThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 2:27 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 33 min |
| Aug 2, 6:39 PM EDT | Severe Thunderstorm Warning | MFL | Glades | 46 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.