Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 87, NWS Melbourne, FL

June 17, 2001Lake County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 17, 2001, 3:23 PM EDT for Lake County, Florida. It was in force for 67 min. 1 report 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
Jun 17, 2001, 3:23 PM EDT (19:23 UTC)
Expired
Jun 17, 2001, 4:30 PM EDT
In force
67 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Lake County, FL

The radar

The Melbourne radar (KMLB), 126 km from the middle of the area, began a volume at 19:25 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
Jun 17, 3:45 PM EDTThunderstorm Wind 50 EPaisley, FLThunderstorm winds swept across northern Lake County blowing down a few trees near Paisley and Emerald.

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, 7.4 hours before the alert went out and 123 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 2001-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 2001-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
21 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
1238 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
7 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.

000 
WUUS52 KMLB 171927
SVRMLB

FLC069-172030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
323 PM EDT SUN JUN 17 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 430 PM EDT.

* AT 320 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 10 MILES NORTH OF EUSTIS...MOVING SOUTHEAST
  AT 5 TO 10 MPH.

* ANOTHER STORM WAS DEVELOPING RAPIDLY 3 MILES NORTHWEST OF EUSTIS

* SEVERE THUNDERSTORMS WILL BE...
  NEAR ALTOONA AND EUSTIS AT 330 PM EDT
  NEAR UMATILLA AT 335 PM EDT

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EX0CESS 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.

$$

CRISTALDI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 9:49 PM EDTSevere Thunderstorm WarningMLBBrevard31 min
Jun 17, 3:11 PM EDTSevere Thunderstorm WarningMLBMartin64 min
Jun 17, 4:34 PM EDTSevere Thunderstorm WarningMLBVolusia56 min
Jun 17, 5:33 PM EDTSevere Thunderstorm WarningMLBSeminole57 min
Jun 17, 6:08 PM EDTSevere Thunderstorm WarningMLBBrevard67 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001

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.