Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 84, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 5, 1998, 5:06 PM EDT for Palm Beach County, Florida. It was in force for 64 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
- Aug 5, 1998, 5:06 PM EDT (21:06 UTC)
- Expired
- Aug 5, 1998, 6:10 PM EDT
- In force
- 64 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Palm Beach County, FL
The radar
The Miami radar (KAMX), 115 km from the middle of the area, began a volume at 21:08 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.
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 9.1 hours before the alert went out and 93 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
- 1626 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 953 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -27 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.
180 WUUS1 KMIA 052108 RRA SVRMIA FLC099-052210- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 506 PM EDT WED AUG 5 1998 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL AND SOUTHEASTERN PALM BEACH COUNTY IN SOUTHEASTERN FLORIDA * UNTIL 610 PM EDT * AT 500 PM...A POSSIBLE SEVERE THUNDERSTORM CONTINUES IN THE ROYAL PALM BEACH AND WESTERN SECTIONS OF WEST PALM BEACH. MOVEMENT WILL BE SOUTH AT 10 MPH TOWARDS GREENACRES CITY AND LAKE WORTH. SOME SMALL HAIL... STRONG WINDS AND PONDING OF ROADWAYS CAN BE EXPECT. 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.
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 5, 2:53 PM EDT, 2 hours 13 minutes before
FLZ074-052000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 253 PM EDT WED AUG 5 1998 ...SEVERE THUNDERSTORM WARNING FOR DADE CANCELLED... THE SEVERE THUNDERSTORM THAT WAS OVER CENTRAL DADE COUNTY NEAR SWEETWATER HAS DECREASED RAPIDLY IN INTENSITY AND SHOULD NO LONGER PRODUCE SEVERE WEATHER. THUNDERSTORMS WILL CONTINUE TO BRING LIGHTNING AND SOME GUSTY WINDS AND HEAVY RAINS TO THE WESTERN SUBURBAN AREAS OF DADE COUNTY THROUGH 4 PM.
Special weather statement, Aug 5, 2:53 PM EDT, 2 hours 13 minutes before
FLZ074-052000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 253 PM EDT WED AUG 5 1998 ...SEVERE THUNDERSTORM WARNING FOR DADE CANCELLED... THE SEVERE THUNDERSTORM THAT WAS OVER CENTRAL DADE COUNTY NEAR SWEETWATER HAS DECREASED RAPIDLY IN INTENSITY AND SHOULD NO LONGER PRODUCE SEVERE WEATHER. THUNDERSTORMS WILL CONTINUE TO BRING LIGHTNING AND SOME GUSTY WINDS AND HEAVY RAINS TO THE WESTERN SUBURBAN AREAS OF DADE COUNTY THROUGH 4 PM.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 2:25 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 45 min |
| Aug 5, 3:26 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 49 min |
| Aug 5, 4:01 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 64 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.