Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 64, NWS Melbourne, FL

June 14, 2001Seminole County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 14, 2001, 2:22 PM EDT for Seminole County, Florida. It was in force for 68 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 14, 2001, 2:22 PM EDT (18:22 UTC)
Expired: Jun 14, 2001, 3:30 PM EDT
In force: 68 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 18:25 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

Time	Report	Where	Remark
Jun 14, 3:00 PM EDT	Thunderstorm Wind 50 E	Oviedo, FL	Thunderstorm winds blew down trees in many areas around Oviedo and Seminole County.

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, 6.4 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-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: 608 J/kg
Mixed-layer CIN: -137 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 22 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 141824
SVRMLB

FLC117-141930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
222 PM EDT THU JUN 14 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 330 PM EDT.

* AT 222 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A LINE OF SEVERE THUNDERSTORMS FROM NEAR ZELLWOOD TO WINTER GARDEN
  ...MOVING NORTHEAST  AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE...
  NEAR WEKIVA SPRINGS AT 245 PM EDT
  NEAR ALTAMONTE SPRINGS AT 250 PM EDT
  NEAR FERN PARK...LAKE MARY...LONGWOOD AT 300 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.

VERY LARGE HAIL IS POSSIBLE WITH THESE SEVERE STORMS. IF YOU ARE IN hITS
PATH...PUT YOUR CAR IN A GARAGE AND MOVE TO A STURDY BUILDING AWAY
FROM WINDOWS.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 8:55 PM EDT	Severe Thunderstorm Warning	MLB	Orange	35 min
Jun 14, 1:43 PM EDT	Severe Thunderstorm Warning	MLB	Lake, Orange	62 min
Jun 14, 2:42 PM EDT	Severe Thunderstorm Warning	MLB	Lake	33 min
Jun 14, 2:43 PM EDT	Severe Thunderstorm Warning	MLB	Volusia	62 min
Jun 14, 2:44 PM EDT	Severe Thunderstorm Warning	MLB	Orange, Osceola, Seminole	61 min
Jun 14, 2:56 PM EDT	Severe Thunderstorm Warning	MLB	Osceola	64 min
Jun 14, 3:35 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	55 min
Jun 14, 3:44 PM EDT	Severe Thunderstorm Warning	MLB	Volusia	46 min
Jun 14, 4:15 PM EDT	Severe Thunderstorm Warning	MLB	Saint Lucie	45 min
Jun 14, 4:30 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	60 min
Jun 14, 5:28 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	62 min

Nearby

Severe Thunderstorm Warnings in Florida, 2001 Every 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.