Alert archive / Florida / Tornado Warnings in 2001

Tornado Warning 26, NWS Jacksonville, FL

June 12, 2001Hamilton County, Florida

NWS Jacksonville, FL issued this tornado warning at Jun 12, 2001, 2:04 AM EDT for Hamilton County, Florida. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 12, 2001, 2:04 AM EDT (06:04 UTC)
Expired: Jun 12, 2001, 2:45 AM EDT
In force: 41 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Hamilton County, FL

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 6.1 hours before the alert went out and 120 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 120604
TORJAX
FLC047-120645-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
204 AM EDT TUE JUN 12 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  HAMILTON COUNTY IN NORTHERN FLORIDA
  THIS INCLUDES JASPER...

* UNTIL 245 AM EDT

* AT 155 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 20 MILES WEST OF JASPER...OR ABOUT 8 MILES EAST
  OF MADISON...MOVING EAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THE STORM THROUGH 245 AM EDT...
  JASPER...

THIS IS A EXTREMELY DANGEROUS AND POTENTIALLY LIFE THREATENING
TORNADO. EVACUATE MOBILE HOMES AND GO TO A STURDY BUILDING. MPOVE TO A
PLACE OF SAFETY...AWAY FROM WINDOWS...IN AN INTERIOR ROOM ON THE
LOWEST FLOOR.


$$

PETERSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 9:04 PM EDT	Tornado Warning	JAX	Union	26 min
Jun 11, 11:07 PM EDT	Tornado Warning	JAX	Columbia, Hamilton	38 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; the sounding from the Mesonet's radiosonde archive.