Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 52, NWS Melbourne, FL

May 19, 2003Lake County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 19, 2003, 5:17 PM EDT for Lake County, Florida. It was in force for 58 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
May 19, 2003, 5:17 PM EDT (21:17 UTC)
Expired
May 19, 2003, 6:15 PM EDT
In force
58 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Lake County, FL

The radar

The Melbourne radar (KMLB), 127 km from the middle of the area, began a volume at 21:19 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, 9.3 hours before the alert went out and 125 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 2003-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1944 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, Cape Canaveral, FL at 12:00Z on 2003-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
1944 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
770 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMLB 192117
SVRMLB
FLC069-192215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
512 PM EDT MON MAY 19 2003

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAKE COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 615 PM EDT

* AT 512 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LARGE CLUSTER OF SEVERE THUNDERSTORMS LINED UP ALONG AND SOUTH OF
  THE FLORIDA TURNPIKE FROM THE SUMTER COUNTY LINE TO MASCOTTE AND
  MINNEOLA.


THESE STORMS WILL MOVE TOWARD THE FLORIDA TURNPIKE NEAR OKAHUMPKA...
AND THEN MOVE MEAR HAWTHORNE...LEESBURG AND HOWEY IN THE HILLS. 

OTHER STORMS ARE EXPECTED TO RAPIDLY DEVELOP ACROSS CENTRAL AND 
SOUTHERN LAKE COUNTY AS THE SEVERE STORMS INTERACT WITH THE EAST 
COAST SEA BREEZE...WHICH IS MOVING INTO THE AREA FROM ORANGE COUNTY.

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 2883 8158 2859 8168 2862 8195 2880 8192

$$

CRISTALDI

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 4:08 PM EDTSevere Thunderstorm WarningMLBLake, Seminole52 min
May 19, 4:43 PM EDTSevere Thunderstorm WarningMLBOrange62 min
May 19, 7:53 PM EDTTornado WarningMLBOkeechobee22 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.