Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 30, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at May 27, 1997, 10:00 PM EDT for Palm Beach County, Florida. It was in force for 60 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
- May 27, 1997, 10:00 PM EDT (02:00 UTC)
- Expired
- May 27, 1997, 11:00 PM EDT
- In force
- 60 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 02:02 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 00:00Z, 2.0 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
- 2965 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 956 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
614 WUUS1 KMIA 280202 RRA SVRMIA FLC099-FLZ502-280300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MIAMI FL 1000 PM EDT TUE MAY 27 1997 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1100 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN SOUTHEAST FLORIDA ...NORTHEASTERN PALM BEACH COUNTY AND THE ADJACENT COASTAL WATERS AN INTENSE THUNDERSTORM LOCATED OVER THE NORTHEAST CORNER OF LAKE OKEECHOBEE WILL MOVE RAPIDLY SOUTHEAST ACROSS NORTHEASTERN PALM BEACH COUNTY NEAR JUPITER...TEQUESTA...AND PALM BEACH GARDENS...THEN INTO THE ATLANTIC BY 1030 PM. DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM. SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. THUNDERSTORMS THREATEN BOATER SAFETY WITH GUSTY WINDS IN EXCESS OF 35 KNOTS...ROUGH SEAS AND DEADLY LIGHTNING. YOUR BEST COURSE OF ACTION IS TO SEEK SAFE HARBOR...BUT IF YOU ARE CAUGHT ON THE OPEN WATER...STAY BELOW DECK OR KEEP A LOW PROFILE AND KEEP AWAY FROM UNGROUNDED METAL OBJECTS. WEAR FLOTATION DEVICES.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 10:32 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 58 min |
| May 27, 11:00 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 55 min |
| May 28, 12:15 AM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 2 hr |
| May 28, 1:37 AM EDT | Severe Thunderstorm Warning | MFL | Broward | 63 min |
| May 28, 5:45 PM EDT | Severe Thunderstorm Warning | MFL | Miami-Dade | 60 min |
| May 28, 5:48 PM EDT | Tornado Warning | MFL | Miami-Dade | 57 min |
| May 28, 6:42 PM EDT | Severe Thunderstorm Warning | MFL | Collier | 63 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1997Every severe thunderstorm warning in 1997
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.