Alert archive / Florida / Tornado Warnings in 2001

Tornado Warning 22, NWS Jacksonville, FL

June 11, 2001Union County, Florida

NWS Jacksonville, FL issued this tornado warning at Jun 11, 2001, 9:04 PM EDT for Union County, Florida. It was in force for 26 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: Jun 11, 2001, 9:04 PM EDT (01:04 UTC)
Expired: Jun 11, 2001, 9:30 PM EDT
In force: 26 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Union County, FL

What was reported inside it

Time	Report	Where	Remark
Jun 11, 9:10 PM EDT	Tornado F0	Providence, FL	Weak FO tornado. Large trees and power lines were blown down.

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 00:00Z, 1.1 hours before the alert went out and 82 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: 483 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 869 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KJAX 120105
TORJAX
FLC125-120130-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  UNION COUNTY IN NORTHERN FLORIDA

* UNTIL 930 PM EDT

* AT 853 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO OVER EXTREME WEST CENTRAL UNION COUNTY...OR
  ABOUT 8 MILES NORTHWEST OF WORTHINGTON SPRINGS...MOVING NORTHEAST
  AT 15 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORM THROUGH 930 PM EDT...
  LAKE BUTLER...
  PALESTINE LAKE...

VERY LARGE HAIL IS POSSIBLE WITH THE PARENT THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE8 STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

$$

HESS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 11:07 PM EDT	Tornado Warning	JAX	Columbia, Hamilton	38 min
Jun 12, 2:04 AM EDT	Tornado Warning	JAX	Hamilton	41 min
Jun 12, 3:41 AM EDT	Severe Thunderstorm Warning	JAX	Hamilton	49 min
Jun 12, 4:05 AM EDT	Tornado Warning	JAX	Hamilton, Suwannee	40 min
Jun 12, 6:23 AM EDT	Tornado Warning	JAX	Columbia, Hamilton	52 min
Jun 12, 12:12 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Duval	48 min
Jun 12, 12:37 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Saint Johns	38 min
Jun 12, 12:54 PM EDT	Tornado Warning	JAX	Duval	51 min

Nearby

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