Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 42, NWS Melbourne, FL

September 2, 1998Brevard County, Volusia County, Florida

NWS Melbourne, FL issued this tornado warning at Sep 2, 1998, 7:20 PM EDT for Brevard County, Volusia County, Florida. It was in force for 60 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: Sep 2, 1998, 7:20 PM EDT (23:20 UTC)
Expired: Sep 2, 1998, 8:20 PM EDT
In force: 60 min
Issued by: NWS Melbourne, FL
Area: Whole counties

Counties Brevard County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 69 km from the middle of the area, began a volume at 23:20 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.

Issued	Product	Office	Lasted
Sep 2, 3:00 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 11.3 hours before the alert went out and 181 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 207 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 1215 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

444 
WFUS01 KMLB 022322
TORMLB
FLC009-127-030020-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
720 PM EDT WED SEP 2 1998

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
     SOUTHERN VOLUSIA COUNTY IN EAST CENTRAL FLORIDA
     NORTHERN BREVARD COUNTY IN EAST CENTRAL FLORIDA

* UNTIL 820 PM EDT

* AT 717 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO ONE WAS LOCATED 5 MILES WEST NORTHWEST OF COCOA AND ANOTHER
  WAS OVER .  MOVEMENT WAS THE BREVARD COUNTY TORNADO WAS MOVING
  NORTH AT 20 MPH AND THE TORNADO IN SOUTHEAST SEMINOLE COUNTY WAS
MOVING NORTHEAST AT 15 MPH.

* THESE TORNADOES WILL AFFECT NORTHERN BREVARD AND SOUTHEAST
  VOLUSIA COUNTY THROUGH 820 PM.

THIS IS A DANGEROUS STORM. BE PREPARED FOR DAMAGING WIND IN EXCESS
OF 58 MPH...LARGE HAIL AND DEADLY LIGHTNING. PEOPLE OUTSIDE OR IN
MOBILE HOMES SHOULD MOVE INSIDE A STRONG BUILDING AND STAY AWAY FROM
WINDOWS.

TT/SH

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 2, 5:21 PM EDT	Tornado Warning	MLB	Lake	64 min
Sep 2, 6:06 PM EDT	Tornado Warning	MLB	Orange	64 min
Sep 2, 6:14 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	66 min
Sep 2, 6:18 PM EDT	Tornado Warning	MLB	Brevard	62 min
Sep 2, 6:48 PM EDT	Tornado Warning	MLB	Seminole	62 min

Nearby

Tornado Warnings in Florida, 1998 Every tornado warning in 1998 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.