Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 2, NWS Melbourne, FL

March 13, 2001Volusia County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 13, 2001, 9:45 AM EST for Volusia County, Florida. It was in force for 60 min. 3 reports 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 13, 2001, 9:45 AM EST (14:45 UTC)
Expired
Mar 13, 2001, 10:45 AM EST
In force
60 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Volusia County, FL

What was reported inside it

TimeReportWhereRemark
Mar 13, 10:10 AM ESTHail 0.75Pierson, FL
Mar 13, 10:50 AM ESTTornado F1Daytona Beach, FLAn F1 tornado and strong downburst winds touched down in the heart of Daytona Beach just west of the Halifax River Lagoon. At least 100 homes and dozens of vehicles were damaged, many due to fallen trees. Boats on trailers were overturned and the roof of a fu
Mar 13, 10:55 AM ESTThunderstorm Wind 60 EDaytona Beach, FLStrong microburst winds hit the barrier island in Daytona Beach destroying a large tent and a beach tollbooth. One person was injured.

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, 2.8 hours before the alert went out and 91 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 2001-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1482 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 2001-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 square meters per square second.19395878Sfc1 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
1482 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
1.3
Supercell composite
7.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KMLB 131449
SVRMLB

FLC127-131545-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
945 AM EST TUE MAR 13 2001

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 1045 AM EST.

* AT 940 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF LAKE GEORGE...OR ABOUT 16
  MILES WEST OF PIERSON...MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BARBERVILLE AND APPROACHING 
ORMOND BEACH LATER IN THE WARNING PERIOD AROUND 1045 AM.

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.

REPORT LARGE HAIL...DIME SIZE OR LARGER...OR SIGNIFICANT WIND DAMAGE
hTO LOCAL LAW ENFORCEMENT FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER
SERVICE.

$$

DWS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 10:45 AM ESTSevere Thunderstorm WarningMLBVolusia60 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.