Alert archive / Florida / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 29, NWS Melbourne, FL

July 5, 2002Okeechobee County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 5, 2002, 6:24 PM EDT for Okeechobee County, Florida. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 5, 2002, 6:24 PM EDT (22:24 UTC)
Expired
Jul 5, 2002, 7:15 PM EDT
In force
51 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Okeechobee County, FL

The radar

The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 22:26 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, 10.4 hours before the alert went out and 126 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 2002-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1862 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 2002-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
1862 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
32 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.

078 
WUUS52 KMLB 052224
SVRMLB
FLC093-052315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
623 PM EDT FRI JUL 5 2002

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 715 PM EDT.

* AT 620 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM OVER FORT DRUM...MOVING SOUTHEAST AT 10 MPH. 
LIGHTNING DETECTION EQUIPMENT INDICATED THE STORM WAS PRODUCING 
EXCESSIVE LIGHTNING.

* THE SEVERE THUNDERSTORM WILL BE NEAR COUNTRY HILLS ESTATE AT 
640 PM.

THIS IS A DANGEROUS STORM. 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 OF YOUR BUILDING.  

$$

LAT...LON 2751 8091 2729 8079 2729 8068 2745 8067
          2757 8080

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 1:47 PM EDTSevere Thunderstorm WarningMLBVolusia58 min
Jul 5, 1:54 PM EDTSevere Thunderstorm WarningMLBVolusia51 min
Jul 5, 2:03 PM EDTSpecial Marine WarningMLB117 min

Nearby

Severe Thunderstorm Warnings in Florida, 2002Every severe thunderstorm warning in 2002

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.