Alert archive / Florida / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 35, NWS Melbourne, FL

July 7, 2000Seminole County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 7, 2000, 4:03 PM EDT for Seminole County, Florida. It was in force for 42 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 7, 2000, 4:03 PM EDT (20:03 UTC)
Expired
Jul 7, 2000, 4:45 PM EDT
In force
42 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Seminole County, FL

The radar

The Melbourne radar (KMLB), 88 km from the middle of the area, began a volume at 20:03 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.

What was reported inside it

TimeReportWhereRemark
Jul 7, 4:30 PM EDTThunderstorm Wind 55 EOviedo, FLThunderstorm winds blew down large limbs and damaged awnings and roofs in Oviedo. Winds were estimated at 60 mph.
Jul 7, 4:30 PM EDTThunderstorm Wind 50 ECasselberry, FLThunderstorm winds blew down trees in Casselberry. The roof of a house was damaged by falling trees.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 8.1 hours before the alert went out and 77 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 2000-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1962 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2000-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
1962 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMLB 072005
SVRMLB
FLC117-072045-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
403 PM EDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 445 PM EDT

* AT 402 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM NEAR WINTER SPRINGS...MOVING SOUTHEAST AT
 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NEAR OVIEDO AT 425 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 2868 8132 2862 8126 2862 8110 2872 8121

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 3:51 PM EDTSevere Thunderstorm WarningMLBOsceola54 min
Jul 7, 4:14 PM EDTSevere Thunderstorm WarningMLBFlagler46 min
Jul 7, 4:32 PM EDTSevere Thunderstorm WarningMLBVolusia58 min
Jul 7, 5:00 PM EDTSevere Thunderstorm WarningMLBOrange45 min
Jul 7, 5:20 PM EDTSevere Thunderstorm WarningMLBBrevard40 min
Jul 7, 6:19 PM EDTSevere Thunderstorm WarningMLBIndian River41 min

Nearby

Severe Thunderstorm Warnings in Florida, 2000Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.