Alert archive / Florida / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 49, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 18, 1997, 9:06 PM EDT for Saint Lucie County, Florida. It was in force for 49 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
- Jun 18, 1997, 9:06 PM EDT (01:06 UTC)
- Expired
- Jun 18, 1997, 9:55 PM EDT
- In force
- 49 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Saint Lucie County, FL
The radar
The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 01:06 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 18, 9:20 PM EDT | Hail 0.75 | Ft Pierce, FL |
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
Cape Canaveral, FL (KXMR), launched 00:00Z, 1.1 hours before the alert went out and 121 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
- 3255 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1133 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -206 m²/s²
- 0-3 km storm-relative helicity
- -232 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 KMLB 190107 RRA SVRMLB FLC111-FLZ501-190155- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 906 PM EDT WED JUN 18 1997 THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 955 PM EDT FOR THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...ST. LUCIE COUNTY AND FOR MARINE INTERESTS ON THE INTRACOASTAL WATERS AND NEARSHORE ATLANTIC FROM... ...FORT PIERCE INLET TO SAINT LUCIE INLET AT 903 PM...DOPPLER RADAR SHOWED A CLUSTER OF SEVERE THUNDERSTORMS DEVELOPING FROM FORT PIERCE WESTWARD ALONG STATE ROAD 68 TO I-95 AND THE FLORIDA TURNPIKE. THE STORMS ARE MOVING SOUTH-SOUTHEAST AT NEAR 10 MPH. FORT PIERCE...WHITE CITY AND PORT ST LUCIE ARE IN THE PATH OF THESE STORMS. RESIDENTS ACROSS MOST OF ST LUCIE COUNTY SHOULD MOVE INDOORS TO SAFETY UNTIL THESE STORMS PASS THROUGH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 58 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STRONG BUILDING. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. CRISTALDI
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 4:46 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 59 min |
| Jun 19, 6:24 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 66 min |
| Jun 19, 7:51 PM EDT | Severe Thunderstorm Warning | MLB | Indian River | 54 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.