Alert archive / Florida / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 24, NWS Melbourne, FL

May 27, 1997Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 27, 1997, 8:24 PM EDT for Brevard County, Florida. It was in force for 51 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
May 27, 1997, 8:24 PM EDT (00:24 UTC)
Expired
May 27, 1997, 9:15 PM EDT
In force
51 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 21 km from the middle of the area, began a volume at 00:26 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

TimeReportWhereRemark
May 27, 8:35 PM EDTThunderstorm Wind 56Cape Canaveral, FLThunderstorm winds produced a wind gust to 64 mph at Cape Canaveral.
May 27, 8:45 PM EDTHail 0.75Melbourne, FLDime size hail fell in Melbourne.

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

Tampa Bay, FL (KTBW), launched 00:00Z, 0.4 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 1997-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1630 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 1997-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
1630 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1077 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLB 280024 RRA
SVRMLB
FLC009-FLZ501-280110-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
824 PM EDT TUE MAY 27 1997

THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 915 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL FLORIDA

   ...BREVARD COUNTY
 
AT 823 PM EDT...WEATHER RADAR INDICATED SEVERE THUNDERSTORMS OVER
OSCEOLA COUNTY NEAR HOLOPAW AND DEER PARK.  THESE STORMS WERE MOVING
SOUTHEAST AT 15 MPH AND WILL APPROACH BREAVRD COUNTY FROM THE
NORTHWEST.  GUSTY WINDS FROM 40 TO NEAR 58 MPH HAVE BEEN INDICATED
BY DOPPLER RADAR. THESE STORMS WILL AFFECT AREAS FROM COCOA...TO
PATRICK AFB...SOUTH TO MELBOURNE/PALM BAY AND SEBASTIAN INLET.
 
THESE ARE DANGEROUS STORMS. IF YOU ARE IN THEIR PATH YOU SHOULD
PREPARE FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING.
PEOPLE OUTSIDE OR IN MOBILE HOMES SHOULD MOVE INSIDE A STRONGl
BUILDING AND STAY AWAY FROM WINDOWS.

SHARP

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 8:00 PM EDTSevere Thunderstorm WarningMLBOsceola60 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.