Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 19, NWS Melbourne, FL

March 29, 2001Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 29, 2001, 5:20 PM EST for Saint Lucie County, Florida. It was in force for 25 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: Mar 29, 2001, 5:20 PM EST (22:20 UTC)
Expired: Mar 29, 2001, 5:45 PM EST
In force: 25 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 22:20 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 29, 3:15 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.3 hours before the alert went out and 121 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: 647 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 626 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 185 m²/s²
0-3 km storm-relative helicity: 307 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.

162 
WUUS52 KMLB 292222
SVRMLB
FLC111-292245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
520 PM EST THU MAR 29 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST ST. LUCIE COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 545 PM EST.

* AT 520 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM OVER PORT ST. LUCIE-RIVER PARK...OR NEAR 
  PORT ST. LUCIE...MOVING NORTHEAST AT 35 MPH.

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.

AT TIMES...BRIEF TORNADOES OCCUR NEAR THE COAST IN THESE SITUATIONS.

LARGE HAIL...EXCESSIVE LIGHTNING AND DAMAGING WINDS ARE LIKELY. TAKE
COVER IN A STURDY BUILDING UNTIL THE STORM PASSES.

$$

LAT...LON 2737 8041 2722 8034 2726 8027 2725 7990
          2765 8004

DWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 10:38 AM EST	Severe Thunderstorm Warning	MLB	Lake	67 min
Mar 29, 11:01 AM EST	Severe Thunderstorm Warning	MLB	Orange	59 min
Mar 29, 11:17 AM EST	Severe Thunderstorm Warning	MLB	Osceola	58 min
Mar 29, 11:43 AM EST	Severe Thunderstorm Warning	MLB	Seminole	62 min
Mar 29, 11:53 AM EST	Severe Thunderstorm Warning	MLB	Orange	67 min
Mar 29, 12:12 PM EST	Severe Thunderstorm Warning	MLB	Volusia	63 min
Mar 29, 12:15 PM EST	Severe Thunderstorm Warning	MLB	Osceola	45 min
Mar 29, 12:34 PM EST	Severe Thunderstorm Warning	MLB	Brevard	56 min
Mar 29, 1:05 PM EST	Severe Thunderstorm Warning	MLB	Osceola	55 min
Mar 29, 1:22 PM EST	Severe Thunderstorm Warning	MLB	Brevard	53 min
Mar 29, 2:33 PM EST	Severe Thunderstorm Warning	MLB	Okeechobee	27 min
Mar 29, 2:40 PM EST	Severe Thunderstorm Warning	MLB	Indian River	65 min
Mar 29, 3:45 PM EST	Severe Thunderstorm Warning	MLB	Indian River, Saint Lucie	45 min
Mar 29, 4:30 PM EST	Severe Thunderstorm Warning	MLB	Saint Lucie	45 min
Mar 29, 4:54 PM EST	Severe Thunderstorm Warning	MLB	Martin	66 min
Mar 29, 6:00 PM EST	Severe Thunderstorm Warning	MLB	Martin	60 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.