Alert archive / Florida / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 22, NWS Melbourne, FL

March 17, 2003Brevard County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 17, 2003, 4:43 PM EST for Brevard County, Florida. It was in force for 47 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
Mar 17, 2003, 4:43 PM EST (21:43 UTC)
Expired
Mar 17, 2003, 5:30 PM EST
In force
47 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), 21 km from the middle of the area, began a volume at 21:47 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 58 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 2003-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 198 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 2003-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 245 square meters per square second.19395878Sfc1 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
198 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
774 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
245 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

971 
WUUS52 KMLB 172143
SVRMLB
FLC009-172230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
439 PM EST MON MAR 17 2003

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 530 PM EST

* AT 432 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTH OF PALM BAY...MOVING NORTHEAST AT
  25 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR GRANT...BAREFOOT BAY...MICCO...MALABAR AT 450 PM EST

LARGE HAIL...EXCESSIVE LIGHTNING AND DAMAGING WINDS ARE LIKELY. TAKE
COVER IN A STURDY BUILDING UNTIL THE STORM PASSES.

LAT...LON 2793 8076 2784 8069 2786 8020 2819 8028

$$

MJG

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 3:00 PM ESTSpecial Marine WarningMLB90 min
Mar 17, 3:33 PM ESTSpecial Marine WarningMLB117 min
Mar 17, 3:47 PM ESTSevere Thunderstorm WarningMLBBrevard43 min
Mar 17, 4:05 PM ESTSevere Thunderstorm WarningMLBOrange55 min
Mar 17, 4:07 PM ESTTornado WarningMLBBrevard38 min
Mar 17, 4:31 PM ESTSevere Thunderstorm WarningMLBLake, Volusia44 min
Mar 17, 5:07 PM ESTSpecial Marine WarningMLB113 min
Mar 17, 5:07 PM ESTSpecial Marine WarningMLB113 min
Mar 17, 5:15 PM ESTSevere Thunderstorm WarningMLBBrevard60 min
Mar 17, 6:49 PM ESTSpecial Marine WarningMLB86 min
Mar 17, 6:49 PM ESTSpecial Marine WarningMLB86 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.