Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 92, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Nov 4, 1998, 9:31 PM EST for Collier County, Florida. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 4, 1998, 9:31 PM EST (02:31 UTC)
- Expired
- Nov 4, 1998, 10:15 PM EST
- In force
- 44 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Collier County, FL
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 4, 12:30 PM EST | Tornado Watch | SPC | 12 hr |
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 2.5 hours before the alert went out and 113 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
- 110 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 853 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 367 m²/s²
- 0-3 km storm-relative helicity
- 607 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 17.0
The text
As transmitted, in the capitals the NWS used until 2016.
299 WUUS1 KMIA 050232 RRA SVRMIA FLC021-050315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 931 PM EST WED NOV 4 1998 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN COLLIER COUNTY IN SOUTHWESTERN FLORIDA * UNTIL 1015 PM EST * AT 928 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTH OF EVERGLADES CITY MOVING NORTHEAST AT 30 MPH. THIS STORM WILL AFFECT AREAS OF SOUTHERN COLLIER COUNTY FROM EVERGLADES CITY EASTWARD. 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.
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, Nov 4, 6:35 PM EST, 2 hours 56 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
735 PM EDT WED NOV 04 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0630 PM KEY LARGO FL TORNADO
11/04/98 MONROE *** 20 INJ ESTIMATED ***
MONROE EOC REPORTS LOTS OF
MINOR INJURIES AND A FEW
MAJOR INJURIES AT THE
CALUSA COVE AND RIVIERA
CAMPGROUNDS ON KEY LARGO
NEAR LAKE SURPRISE.Local storm report, Nov 4, 7:02 PM EST, 2 hours 29 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
702 PM EST WED NOV 04 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0340 PM BOYNTON BEACH FL
11/04/98 PALM BEACH FUNNEL CLOUD REPORTED WEST
OF U.S. 441 AND BOYNTON
BEACH BLVD. REPORTED BY
PALM BEACH EOC.
0420 PM HYPOLUXO FL TORNADO
11/04/98 PALM BEACH BRIEF TORNADO TOUCHDOWN
REPORTED BY PALM BEACH EOC
AT THE TURNPIKE AND
HYPOLUXO ROAD. NO DAMAGE
REPORT AVAILABLE.
0447 PM MARATHON FL 50 MPH TSTM GUST
11/04/98 MONROE WIND GUST TO 50 MPH
REPORTED BY MONROE EOC AT
MARATHON ALSO POSSIBLE
TORNADO PASSAGE NEARBY.
0500 PM MARATHON FL TORNADO
11/04/98 MONROE PUBLIC REPORTED TORNADO
TOUCHDOWNS AT GRASSY KEY
AND LAYTON...BOTH EAST OF
MARATHON.
0510 PM MARATHON FL TORNADO
11/04/98 MONROE TORNADO DAMAGE REPORTED ON
U.S.1 AT MILE MARKER 80.
0625 PM KEY LARGO FL TORNADO
11/04/98 MONROE TRACTOR TRAILER OVERTURNED
AND PEOPLE REPORTED
TRAPPED IN TRAILERS AT
CALUSA COVE NEAR MILE
MARKER 106 ON U.S. 1
REPORTED BY MONROE EOC.Local storm report, Nov 4, 7:35 PM EST, 1 hour 56 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
735 PM EDT WED NOV 04 1998
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0630 PM KEY LARGO FL TORNADO
11/04/98 MONROE *** 20 INJ ESTIMATED ***
MONROE EOC REPORTS LOTS OF
MINOR INJURIES AND A FEW
MAJOR INJURIES AT THE
CALUSA COVE AND RIVIERA
CAMPGROUNDS ON KEY LARGO
NEAR LAKE SURPRISE.The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 4, 10:16 PM EST | Severe Thunderstorm Warning | MFL | Collier | 44 min |
| Nov 4, 10:58 PM EST | Tornado Warning | MFL | Collier | 32 min |
| Nov 4, 11:43 PM EST | Tornado Warning | MFL | Broward | 32 min |
| Nov 5, 12:13 AM EST | Severe Thunderstorm Warning | MFL | Palm Beach | 32 min |
| Nov 5, 1:06 AM EST | Flash Flood Warning | MFL | Broward, Miami-Dade | 2 hr |
| Nov 5, 1:06 AM EST | Flash Flood Warning | MFL | Palm Beach | 2 hr |
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; the sounding from the Mesonet's radiosonde archive.