Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 112, NWS Melbourne, FL

November 2, 1997Indian River County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Nov 2, 1997, 6:08 AM EST for Indian River County, Florida. It was in force for 42 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
Nov 2, 1997, 6:08 AM EST (11:08 UTC)
Expired
Nov 2, 1997, 6:50 AM EST
In force
42 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 11:08 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

Tampa Bay, FL (KTBW), launched 00:00Z, 11.1 hours before the alert went out and 180 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.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 1997-11-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1350 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 1997-11-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1350 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

303 
WUUS01 KMLB 021108
SVRMLB
FLC061-021150-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
608 AM EST SUN NOV 2 1997

THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 650 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL FLORIDA

   ...INDIAN RIVER COUNTY
 
AT 610 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES
EAST OF BLUE CYPRESS LAKE MOVING EAST AT 40 MPH. THIS STORM WILL
AFFECT FELLSMERE BY 615 PM AND THE INDIAN RIVER COAST FROM SEBASTIAN
TO WABASSO AROUND 635 PM.


SEVERE THUNDERSTORMS CAN...AND OCCASIONALLY DO...PRODUCE TORNADOES
WITH LITTLE OR NO WARNING.

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 2, 12:38 AM ESTSevere Thunderstorm WarningMLBVolusia32 min
Nov 2, 2:58 AM ESTSevere Thunderstorm WarningMLBOsceola42 min
Nov 2, 5:12 AM ESTSevere Thunderstorm WarningMLBIndian River48 min
Nov 2, 7:09 AM ESTSevere Thunderstorm WarningMLBBrevard61 min
Nov 2, 8:04 AM ESTSevere Thunderstorm WarningMLBOkeechobee56 min
Nov 2, 8:17 AM ESTTornado WarningMLBOkeechobee48 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.