Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 40, NWS Melbourne, FL

April 25, 2003Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Apr 25, 2003, 6:42 PM EDT for Brevard 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 outline as issued.

The facts

Issued
Apr 25, 2003, 6:42 PM EDT (22:42 UTC)
Expired
Apr 25, 2003, 7:45 PM EDT
In force
63 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 48 km from the middle of the area, began a volume at 22:46 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.7 hours before the alert went out and 22 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, Cape Canaveral, FL at 12:00Z on 2003-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1054 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, Cape Canaveral, FL at 12:00Z on 2003-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.193958Sfc1 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
1054 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
955 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMLB 252242
SVRMLB
FLC009-252345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
639 PM EDT FRI APR 25 2003

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BREVARD COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 745 PM EDT

* AT 636 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM OVER LCANAVERAL ACRES...OR ABOUT 2 MILES
  EAST OF LONE CABBAGE FISH CAMP...MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR SHARPES AND PORT SAINT JOHN AT 645 PM EDT
  OVER NORTH MERRITT ISLAND AT 705 PM EDT
  NEAR PLAYALINDA BEACH AT 715 PM EDT

IN ADDITION...ANOTHER STORM WAS INTENSIFYING NEAR STATE ROAD 520 
WEST OF COCOA NEAR THE ORANGE AND OSCEOLA COUNTY BORDERS. THIS STORM
WILL ALSO HAVE THE POTENTIAL TO PRODUCE WIND DAMAGE AND HAIL AS IT
MOVES  TOWARD THE COCOA AREA BY 700 PM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. IF
THE STORM APPROACHES YOU...MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR.

LAT...LON 2871 8066 2851 8056 2833 8079 2845 8090

$$

CRISTALDI

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 3:34 PM EDTSevere Thunderstorm WarningMLBLake, Orange, Volusia41 min
Apr 25, 4:16 PM EDTSevere Thunderstorm WarningMLBVolusia44 min
Apr 25, 4:17 PM EDTSpecial Marine WarningMLB118 min
Apr 25, 4:27 PM EDTSevere Thunderstorm WarningMLBOrange, Seminole63 min
Apr 25, 4:33 PM EDTSevere Thunderstorm WarningMLBBrevard57 min
Apr 25, 5:00 PM EDTSevere Thunderstorm WarningMLBVolusia45 min
Apr 25, 5:28 PM EDTSevere Thunderstorm WarningMLBSeminole32 min
Apr 25, 5:29 PM EDTSevere Thunderstorm WarningMLBBrevard31 min
Apr 25, 5:41 PM EDTSevere Thunderstorm WarningMLBOrange49 min
Apr 25, 6:00 PM EDTSevere Thunderstorm WarningMLBBrevard45 min
Apr 25, 6:18 PM EDTSpecial Marine WarningMLB117 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003Every severe thunderstorm warning in 2003

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.