Alert archive / Florida / Tornado Warnings in 1997

Tornado Warning 17, NWS Melbourne, FL

April 28, 1997Indian River County, Florida

NWS Melbourne, FL issued this tornado warning at Apr 28, 1997, 3:12 PM EDT for Indian River County, Florida. It was in force for 63 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
Apr 28, 1997, 3:12 PM EDT (19:12 UTC)
Expired
Apr 28, 1997, 4:15 PM EDT
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 19:13 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 28, 12:30 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 7.2 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 12:00Z on 1997-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1286 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 12:00Z on 1997-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 209 square meters per square second.1939587897Sfc1 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
1286 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
576 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
209 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
1.8
Supercell composite
8.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLB 281911 RRA
TORMLB
FLC061-FLZ501-282015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
312 PM EDT MON APR 28 1997

THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 415 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL FLORIDA

   ...INDIAN RIVER COUNTY
 
AT 308 PM EDT...WEATHER RADAR INDICATED A DEVELOPING SEVERE
THUNDERSTORM NEAR YEEHAW JUNCTION IN SOUTH OSCEOLA COUNTY MOVING
NORTHEAST AT 45 MPH.  THIS STORM WILL LIKELY PRODUCE DAMAGING WINDS
AND POSSIBLE SHORT-LIVED TORNADOES.

THE STORM WILL MOVE FROM YEEHAW JUCTION...TO FELLSMERE AROUND 330
PM...AND THEN CONTINUE TO NEAR SEBASTIAN AND WABASSO AROUND 345 PM
EDT.
 
IF YOU ARE CAUGHT OUTSIDE IN THE PATH OF A TORNADO...SEEK SHELTER IN
A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN
A DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 1:13 PM EDTTornado WarningMLBOsceola42 min
Apr 28, 1:33 PM EDTTornado WarningMLBOrange62 min
Apr 28, 2:07 PM EDTTornado WarningMLBOsceola53 min
Apr 28, 2:10 PM EDTTornado WarningMLBSeminole45 min
Apr 28, 2:13 PM EDTTornado WarningMLBVolusia62 min
Apr 28, 2:33 PM EDTTornado WarningMLBBrevard62 min

Nearby

Tornado Warnings in Florida, 1997Every tornado warning in 1997Tornadoes 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.