Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 82, NWS Melbourne, FL

July 22, 2003Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 22, 2003, 5:44 PM EDT for Saint Lucie County, Florida. It was in force for 31 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: Jul 22, 2003, 5:44 PM EDT (21:44 UTC)
Expired: Jul 22, 2003, 6:15 PM EDT
In force: 31 min
Issued by: NWS Melbourne, FL
Area: Counties, with a storm outline in the text

County Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 74 km from the middle of the area, began a volume at 21:45 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, 9.7 hours before the alert went out and 107 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: 1813 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

440 
WUUS52 KMLB 222144
SVRMLB
FLC111-222215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
542 PM EDT TUE JUL 22 2003

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN ST. LUCIE COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 615 PM EDT

* AT 540 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
SEVERE THUNDERSTORM OVER INDRIO.  THE STORM WAS NEARLY STATIONARY 
BUT SHOULD BEGIN TO MOVE EAST INTO THE ATLANTIC.

* THE SEVERE THUNDERSTORM WILL SLOWLY BUILD TOWARD THE SOUTH AND 
SOUTHWEST TOWARD FORT PIERCE THROUGH 630 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 2761 8029 2759 8039 2738 8046 2739 8021

$$

28

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 8:15 PM EDT	Special Marine Warning	MLB		45 min
Jul 22, 2:14 PM EDT	Special Marine Warning	MLB		2 hr
Jul 22, 3:15 PM EDT	Special Marine Warning	MLB		90 min
Jul 22, 3:15 PM EDT	Special Marine Warning	MLB		90 min
Jul 22, 3:30 PM EDT	Severe Thunderstorm Warning	MLB	Osceola	45 min
Jul 22, 4:05 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	40 min
Jul 22, 5:05 PM EDT	Special Marine Warning	MLB		85 min
Jul 22, 7:05 PM EDT	Special Marine Warning	MLB		55 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.