Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 88, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 14, 1998, 5:35 PM EDT for Miami-Dade County, Florida. It was in force for 60 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 14, 1998, 5:35 PM EDT (21:35 UTC)
- Expired
- Aug 14, 1998, 6:35 PM EDT
- In force
- 60 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 21:37 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 |
|---|---|---|---|
| Aug 14, 6:15 PM EDT | Thunderstorm Wind 60 | Kendall, FL | Trees blown down near SW 104 ST and SW 137 AVE. |
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
Key West, FL (KEYW), launched 12:00Z, 9.6 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
- 3078 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- -16 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 142135 RRA SVRMIA FLC025-142235- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 535 PM EDT FRI AUG 14 1998 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN DADE COUNTY IN SOUTHEASTERN FLORIDA * UNTIL 635 PM EDT * AT 530 PM...RADAR INDICATED A SEVERE THUNDERSTORM LOCATED SOUTH OF KENDALL DRIVE AND EAST OF THE TURNPIKE. THIS STORM WAS BUILDING SOUTH AND WAS PART OF A LARGE CLUSTER OF THUNDERSTORMS THAT COVERED INTERIOR AREAS OF DADE COUNTY. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. SEEK SHELTER IN A STRONG BUIL>DING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 6:44 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 61 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.