Alert archive / Florida / Tornado Warnings in 2000

Tornado Warning 49, NWS Jacksonville, FL

September 6, 2000Duval County, Florida

NWS Jacksonville, FL issued this tornado warning at Sep 6, 2000, 1:25 PM EDT for Duval County, Florida. It was in force for 50 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: Sep 6, 2000, 1:25 PM EDT (17:25 UTC)
Expired: Sep 6, 2000, 2:15 PM EDT
In force: 50 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Duval County, FL

The radar

The Jacksonville radar (KJAX), 17 km from the middle of the area, began a volume at 17:26 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.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.4 hours before the alert went out and 19 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: 529 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 678 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KJAX 061726
TORJAX

FLC031-061815-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
125 PM EDT WED SEP 6 2000

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  DUVAL COUNTY IN NORTHEAST FLORIDA
  THIS INCLUDES...ARLINGTON...DOWNTOWN JACKSONVILLE...UNF.

* UNTIL 215 PM EDT

* AT 116 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER ARLINGTON...MOVING NORTH AT 10 MPH.

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...PREFERABLY
INSIDE A STRONG BUILDDING BUT AWAY FROM WINDOWS.

$$
LAT...LON 3024 8172 3022 8152 3048 8145 3051 8170

SHASHY

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 11:22 AM EDT	Severe Thunderstorm Warning	JAX	Duval	38 min
Sep 6, 11:33 AM EDT	Tornado Warning	JAX	Duval	27 min
Sep 6, 2:15 PM EDT	Tornado Warning	JAX	Duval, Saint Johns	45 min
Sep 6, 3:02 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Bradford, Union	43 min
Sep 6, 4:43 PM EDT	Severe Thunderstorm Warning	JAX	Marion	62 min
Sep 6, 4:53 PM EDT	Severe Thunderstorm Warning	JAX	Alachua	67 min
Sep 6, 5:55 PM EDT	Severe Thunderstorm Warning	JAX	Duval	35 min
Sep 6, 7:10 PM EDT	Tornado Warning	JAX	Clay, Putnam	65 min

Nearby

Tornado Warnings in Florida, 2000 Every tornado warning in 2000 Tornadoes in 2000

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; radar from the NEXRAD Level II archive.