Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 56, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jun 30, 1998, 4:13 PM EDT for Broward County, Florida. It was in force for 62 min. 2 reports 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
- Jun 30, 1998, 4:13 PM EDT (20:13 UTC)
- Expired
- Jun 30, 1998, 5:15 PM EDT
- In force
- 62 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Broward County, FL
The radar
The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 20:12 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 |
|---|---|---|---|
| Jun 30, 4:15 PM EDT | Thunderstorm Wind 60 | Davie, FL | Wind damage first thought to be a tornado at 3400 block of SW 18th St. Trees and powerlines downed. Pea-sized hail along storm path. Wing gust 43 knots measured at Fort Lauderdale International Airport a couple miles east of storm cell. |
| Jun 30, 4:30 PM EDT | Thunderstorm Wind 55 | Ft Lauderdale, FL | Public reported wind gusts to 55 knots with trees down 3400 block of SW 18th St. Fort Lauderdale International Airport recorded wind gust to 44 knots. Media reports of pea-sized hail and tree limbs down around Fort Lauderdale. |
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, 8.2 hours before the alert went out and 40 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
- 1592 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 990 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
101 WUUS1 KMIA 302014 RRA SVRMIA FLC011-302115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 413 PM EDT TUE JUN 30 1998 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BROWARD COUNTY IN SOUTHEASTERN FLORIDA * UNTIL 515 PM EDT * AT 411 PM EDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM IN THE VICINITY OF DAVIE MOVING NORTHEAST AT 5 MPH. * A LOCATION NEAR THE PATH OF THIS STORM IS... FORT LAUDERDALE INTERNATIONAL AIRPORT BY ABOUT 440 PM EDT. 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.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:06 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.