Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 9, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Feb 2, 1998, 10:52 PM EST for Indian River County, Florida. It was in force for 63 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
- Feb 2, 1998, 10:52 PM EST (03:52 UTC)
- Expired
- Feb 2, 1998, 11:55 PM EST
- In force
- 63 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Indian River County, FL
The radar
The Melbourne radar (KMLB), 47 km from the middle of the area, began a volume at 03:53 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 |
|---|---|---|---|
| Feb 2, 11:00 PM EST | Thunderstorm Wind 55 | Vero Beach, FL | Downburst wind from a thunderstorm swept over a mobile home community in Vero Beach producing minor exterior damage to eight mobile homes. Most of the damage was to awnings and carports. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 2, 8:00 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 00:00Z, 3.9 hours before the alert went out and 86 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
- 42 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 645 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 317 m²/s²
- 0-3 km storm-relative helicity
- 448 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
437 WUUS01 KMLB 030351 RRA SVRMLB AMZ555-FLC061-030455- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 1052 PM EST MON FEB 2 1998 THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1155 PM EST FOR THE FOLLOWING LOCATIONS... IN EAST CENTRAL FLORIDA ...INDIAN RIVER COUNTY AND FOR MARINE INTERESTS ON THE INTRACOASTAL WATERS AND NEARSHORE ATLANTIC FROM... ...SEBASTIAN INLET TO FORT PIERCE INLET AT 1050 PM...MELBOURNE DOPPLER RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS MOVING INTO SOUTHERN INDIAN RIVER COUNTY. THESE STORMS WILL LIKELY PRODUCE WIND GUSTS IN EXCESS OF 57 MPH AS THEY MOVE TOWARDS THE COAST FROM SEBASTIAN TO VERO BEACH AND OSLO...AND THEN INTO THE ADJACENT COASTAL WATERS. WIND DAMAGE WAS REPORTED IN OKEECHOBEE COUNTY FROM THIS LINE OF STORMS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE READY TO GO TO A SAFE PLACE IF SEVERE THUNDERSTORMS MOVE TOWARD YOUR AREA, ESPECIALLY IF YOU LIVE IN A MOBILE HOME. CRISTALDI
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 2, 9:48 PM EST | Tornado Warning | MLB | Okeechobee | 57 min |
| Feb 2, 10:39 PM EST | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 66 min |
| Feb 2, 11:06 PM EST | Tornado Warning | MLB | Saint Lucie | 34 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.