Alert archive / Florida / Tornado Warnings in 2001

Tornado Warning 17, NWS Jacksonville, FL

June 11, 2001Clay County, Duval County, Florida

NWS Jacksonville, FL issued this tornado warning at Jun 11, 2001, 2:57 PM EDT for Clay County, Duval County, Florida. It was in force for 48 min. 3 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Jun 11, 2001, 2:57 PM EDT (18:57 UTC)
Expired
Jun 11, 2001, 3:45 PM EDT
In force
48 min
Issued by
NWS Jacksonville, FL
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Clay County, FL, Duval County, FL

The radar

The Jacksonville radar (KJAX), 33 km from the middle of the area, began a volume at 18:53 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
Jun 11, 3:10 PM EDTThunderstorm WindOrange Park, FLLarge trees and power lines were blown down.
Jun 11, 3:30 PM EDTTornado F0Jacksonville, FLWeak F0 tornado. A Jacksonville man was crushed to death in his living room. The home located in the 2300 block of Somerset Road received significant damage when sycamore tree smashed through the roof. Trees and power lines were blown down through out the area
Jun 11, 3:30 PM EDTHail 0.75Arlington, 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

Jacksonville, FL (KJAX), launched 12:00Z, 7.0 hours before the alert went out and 34 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, Jacksonville, FL at 12:00Z on 2001-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 856 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, Jacksonville, FL at 12:00Z on 2001-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 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
856 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
777 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

624 
WFUS52 KJAX 111857
TORJAX
FLC019-031-111945-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
257 PM EDT MON JUN 11 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CLAY COUNTY IN NORTHEAST FLORIDA
  THIS INCLUDES...LAKESIDE...ORANGE PARK...
  CENTRAL DUVAL COUNTY IN NORTHEAST FLORIDA
  THIS INCLUDES...ARLINGTON...DOWNTOWN JACKSONVILLE...

* UNTIL 345 PM EDT

* AT 253 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 7 MILES WEST OF LAKESIDE...MOVING NORTHEAST AT
  30 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORM THROUGH 345 PM EDT...
  DOCTORS INLET AND MIDDLEBURG...
  LAKESIDE...
  ORANGE PARK...
  NORMANDY AND ORTEGA...
  RIVERSIDE...
  DOWNTOWN JACKSONVILLE AND SAN MARCO...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WIND IN EXCESS OF 60 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER.

LAT...LON 3016 8204 3003 8189 3029 8152 3044 8172

$$

JOHNSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 2:44 PM EDTSevere Thunderstorm WarningJAXClay, Duval46 min
Jun 11, 3:38 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau52 min
Jun 11, 4:32 PM EDTSevere Thunderstorm WarningJAXFlagler28 min
Jun 11, 4:50 PM EDTTornado WarningJAXNassau40 min
Jun 11, 5:07 PM EDTSevere Thunderstorm WarningJAXPutnam38 min
Jun 11, 5:18 PM EDTSevere Thunderstorm WarningJAXSaint Johns42 min

Nearby

Tornado Warnings in Florida, 2001Every tornado warning in 2001Tornadoes 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.