Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 33, NWS Melbourne, FL

April 25, 2003Orange County, Seminole County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Apr 25, 2003, 4:27 PM EDT for Orange County, Seminole 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, 4:27 PM EDT (20:27 UTC)
Expired: Apr 25, 2003, 5:30 PM EDT
In force: 63 min
Issued by: NWS Melbourne, FL
Area: Counties, with a storm outline in the text

Counties Orange County, FL, Seminole County, FL

The radar

The Melbourne radar (KMLB), 103 km from the middle of the area, began a volume at 20:27 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, 8.5 hours before the alert went out and 93 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: 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.

781 
WUUS52 KMLB 252027
SVRMLB
FLC095-117-252130-

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

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ORANGE COUNTY
  SEMINOLE COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 530 PM EDT

* AT 422 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER FOREST CITY...MOVING NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR LAKE MARY AT 440 PM EDT
  NEAR SANFORD AT 445 PM EDT
  5 MILES NORTHWEST OF MIDWAY AT 455 PM EDT

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 2886 8137 2881 8124 2862 8144 2871 8154

$$

CRISTALDI

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 3:34 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange, Volusia	41 min
Apr 25, 4:16 PM EDT	Severe Thunderstorm Warning	MLB	Volusia	44 min
Apr 25, 4:17 PM EDT	Special Marine Warning	MLB		118 min
Apr 25, 4:33 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	57 min
Apr 25, 5:00 PM EDT	Severe Thunderstorm Warning	MLB	Volusia	45 min
Apr 25, 5:28 PM EDT	Severe Thunderstorm Warning	MLB	Seminole	32 min
Apr 25, 5:29 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	31 min
Apr 25, 5:41 PM EDT	Severe Thunderstorm Warning	MLB	Orange	49 min
Apr 25, 6:00 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	45 min
Apr 25, 6:18 PM EDT	Special Marine Warning	MLB		117 min
Apr 25, 6:42 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	63 min

Nearby

Severe Thunderstorm Warnings in Florida, 2003 Every 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.