Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 78, NWS Melbourne, FL

June 15, 2001Osceola County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 15, 2001, 5:14 PM EDT for Osceola County, Florida. It was in force for 61 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 15, 2001, 5:14 PM EDT (21:14 UTC)
Expired: Jun 15, 2001, 6:15 PM EDT
In force: 61 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 49 km from the middle of the area, began a volume at 21:17 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 15, 5:35 PM EDT	Hail 0.75	Kissimmee, FL

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, 9.2 hours before the alert went out and 78 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: 1882 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 794 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 30 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.

964 
WUUS52 KMLB 152118
SVRMLB
FLC097-152215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
514 PM EDT FRI JUN 15 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN OSCEOLA COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 615 PM EDT.

* AT 507 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM INTERCESSION CITY TO 11 MILES   
  SOUTH OF POINCIANA PLACE MOVING EAST AT 5 MPH.

* SEVERE THUNDERSTORMS WILL BE...
  NEAR INTERCESSION CITY AT 525 PM
  NEAR POINCIANA PLACE AT 535 PM
  NEAR KISSIMMEE AT 605 PM
  NEAR WEST LAKE TOHO AT 610 PM
  7 MILES WEST OF EAST LAKE TOHO AT 615 PM

IN ADDITION SEVERE THUNDERSTORMS ARE DEVELOPING SOUTH TOWARDS 
HOLOPAW IN NORTHEAST OSCEOLA COUNTY. 

THESE ARE DANGEROUS STORMS. PREPARE FOR DAMAGING WINDS IN EXCESS OF 
58 MILES AN HOUR...LARGE HAIL AND DEADLY...EXCESSIVE LIGHTNING. MOVE 
INDOORS TO A STURDY BUILDING AWAY FROM WINDOWS.

$$

LAT...LON 2835 8164 2828 8163 2828 8157 2799 8138
          2802 8089 2834 8088

GITTINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 2:00 PM EDT	Severe Thunderstorm Warning	MLB	Indian River	60 min
Jun 15, 2:12 PM EDT	Severe Thunderstorm Warning	MLB	Volusia	63 min
Jun 15, 2:55 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	65 min
Jun 15, 3:08 PM EDT	Tornado Warning	MLB	Brevard	37 min
Jun 15, 3:43 PM EDT	Tornado Warning	MLB	Brevard	32 min
Jun 15, 4:15 PM EDT	Tornado Warning	MLB	Brevard	60 min
Jun 15, 5:12 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	63 min
Jun 15, 5:24 PM EDT	Severe Thunderstorm Warning	MLB	Orange	66 min
Jun 15, 5:31 PM EDT	Severe Thunderstorm Warning	MLB	Lake	59 min
Jun 15, 6:18 PM EDT	Severe Thunderstorm Warning	MLB	Osceola	57 min
Jun 15, 6:40 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	65 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.