Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 63, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jul 3, 1998, 6:04 PM EDT for Miami-Dade County, Florida. It was in force for 46 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
- Jul 3, 1998, 6:04 PM EDT (22:04 UTC)
- Expired
- Jul 3, 1998, 6:50 PM EDT
- In force
- 46 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Miami-Dade County, FL
The radar
The Miami radar (KAMX), 9 km from the middle of the area, began a volume at 22:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 3, 6:35 PM EDT | Thunderstorm Wind 52 | Homestead, FL | 52 knot winds reported by ranger at Everglades National Park west of Homestead. 2-3 inch diameter trees downed in the Pinelands area of the park. This is located 4 miles south of the Royal Palm ranger station.The downed trees blocked the roadway and marble siz |
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, 10.1 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
- 483 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1598 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 19 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 032204 RRA SVRMIA FLC025-032250- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 604 PM EDT FRI JUL 3 1998 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN DADE COUNTY IN SOUTHEASTERN FLORIDA * UNTIL 650 PM EDT * AT 600 PM MIAMI DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF HOMESTEAD...OR ABOUT 3 MILES NORTHEAST OF THE ROYAL PALM RANGER STATION OF EVERGLADES NATIONAL PARK. THIS STORM IS MOVING SOUTH AT 5 TO 10 MPH. LARGE HAIL AND STRONG WINDS ARE THE MAIN THREATS WITH THIS STORM. * THIS STORM WILL AFFECT THE EVERGLADES NATIONAL PARK AND REMAIN WEST OF HOMESTEAD AND FLORIDA CITY. 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. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. n
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 5:07 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 33 min |
| Jul 3, 6:13 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 32 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.