Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 15, NWS Melbourne, FL

March 29, 2001Indian River County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 29, 2001, 2:40 PM EST for Indian River County, Florida. It was in force for 65 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
Mar 29, 2001, 2:40 PM EST (19:40 UTC)
Expired
Mar 29, 2001, 3:45 PM EST
In force
65 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Indian River County, FL

The radar

The Melbourne radar (KMLB), 47 km from the middle of the area, began a volume at 19:39 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
Mar 29, 2:55 PM ESTHail 1Sebastian, 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, 7.7 hours before the alert went out and 86 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 2001-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 647 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2001-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.1939587897Sfc1 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
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.

000 
WUUS52 KMLB 291945
SVRMLB
FLC061-292045-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  INDIAN RIVER COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 345 PM EST.

* AT 235 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM OVER SOUTHWEST INDIAN RIVER COUNTY SOUTH OF BLUE 
CYPRESS LAKE....MOVING NORTHEAST AT 20 MPH.

OTHER STRONG TO SEVERE STORMS WERE OVER NORTHEAST INDIAN RIVER 
COUNTY NEAR SEBASTIAN AND WABASSO...MOVING TO THE NORTHEAST AT 20 
MPH.

* LOCATIONS IN THE WARNING INCLUDE RURAL SECTIONS OF CENTRAL INDIAN 
RIVER COUNTY. THESE SAME STORMS WILL REACH COASTAL 
LOCATIONS...INCLUDING VERO BEACH AROUND 315 PM.

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

$$

LAT...LON 2764 8081 2754 8077 2766 8021 2791 8034

PB

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 10:38 AM ESTSevere Thunderstorm WarningMLBLake67 min
Mar 29, 11:01 AM ESTSevere Thunderstorm WarningMLBOrange59 min
Mar 29, 11:17 AM ESTSevere Thunderstorm WarningMLBOsceola58 min
Mar 29, 11:43 AM ESTSevere Thunderstorm WarningMLBSeminole62 min
Mar 29, 11:53 AM ESTSevere Thunderstorm WarningMLBOrange67 min
Mar 29, 12:12 PM ESTSevere Thunderstorm WarningMLBVolusia63 min
Mar 29, 12:15 PM ESTSevere Thunderstorm WarningMLBOsceola45 min
Mar 29, 12:34 PM ESTSevere Thunderstorm WarningMLBBrevard56 min
Mar 29, 1:05 PM ESTSevere Thunderstorm WarningMLBOsceola55 min
Mar 29, 1:22 PM ESTSevere Thunderstorm WarningMLBBrevard53 min
Mar 29, 2:33 PM ESTSevere Thunderstorm WarningMLBOkeechobee27 min
Mar 29, 3:45 PM ESTSevere Thunderstorm WarningMLBIndian River, Saint Lucie45 min
Mar 29, 4:30 PM ESTSevere Thunderstorm WarningMLBSaint Lucie45 min
Mar 29, 4:54 PM ESTSevere Thunderstorm WarningMLBMartin66 min
Mar 29, 5:20 PM ESTSevere Thunderstorm WarningMLBSaint Lucie25 min
Mar 29, 6:00 PM ESTSevere Thunderstorm WarningMLBMartin60 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.