Alert archive / Florida / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 3, NWS Melbourne, FL

March 13, 2001Volusia County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 13, 2001, 10:45 AM EST for Volusia County, Florida. It was in force for 60 min. 2 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, 10:45 AM EST (15:45 UTC)
Expired: Mar 13, 2001, 11:45 AM EST
In force: 60 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Volusia County, FL

What was reported inside it

Time	Report	Where	Remark
Mar 13, 10:50 AM EST	Tornado F1	Daytona Beach, FL	An 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 EST	Thunderstorm Wind 60 E	Daytona Beach, FL	Strong 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, 3.8 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-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: 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 131547
SVRMLB

FLC127-131645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1045 AM EST TUE MAR 13 2001

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 1145 AM EST.

* AT 1043 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORMS APPROACHING ORMOND BEACH...MOVING EAST
  AT 40 MPH.

* OTHER STRONG STORMS WERE BECOMING SEVERE AND WILL AFFECT LOCATIONS 
  TO INCLUDE WILBUR BY THE SEA...ORMOND BY THE SEA AND DAYTONA   
  BEACH.

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.

EXCESSIVE LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY.

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

$$

LAT...LON 2934 8129 2899 8131 2901 8086 2915 8082
          2952 8099

DWS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 13, 9:45 AM EST	Severe Thunderstorm Warning	MLB	Volusia	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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.