Alert archive / Florida / Tornado Warnings in 2000

Tornado Warning 36, NWS Jacksonville, FL

July 7, 2000Alachua County, Putnam County, Florida

NWS Jacksonville, FL issued this tornado warning at Jul 7, 2000, 6:43 PM EDT for Alachua County, Putnam County, Florida. It was in force for 32 min. No storm report in the archive falls 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.

The facts

Issued: Jul 7, 2000, 6:43 PM EDT (22:43 UTC)
Expired: Jul 7, 2000, 7:15 PM EDT
In force: 32 min
Issued by: NWS Jacksonville, FL
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Alachua County, FL, Putnam County, FL

The radar

The Jacksonville radar (KJAX), 115 km from the middle of the area, began a volume at 22:45 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, 10.7 hours before the alert went out and 116 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: 957 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 1372 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KJAX 072243
TORJAX
FLC001-107-072315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
643 PM EDT FRI JUL 7 2000

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL PUTNAM COUNTY IN NORTHEAST FLORIDA
  SOUTHEASTERN ALACHUA COUNTY IN NORTHERN FLORIDA

* UNTIL 715 PM EDT

* AT 639 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES EAST OF
  LOCHLOOSA...OR ABOUT 7 MILES NORTHEAST OF CITRA...MOVING SOUTHEAST
  AT 10 MPH.

* THE TORNADO WILL BE NEAR...
  LOCHLOOSA BY 645 PM EDT...

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 BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 2944 8208 2948 8205 2952 8194 2963 8200
          2955 8216 2946 8213

$$

MOBBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 4:14 PM EDT	Severe Thunderstorm Warning	JAX	Flagler	46 min
Jul 7, 5:27 PM EDT	Severe Thunderstorm Warning	JAX	Marion	48 min
Jul 7, 6:21 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion, Putnam	39 min
Jul 7, 7:00 PM EDT	Severe Thunderstorm Warning	JAX	Alachua	45 min
Jul 7, 7:16 PM EDT	Severe Thunderstorm Warning	JAX	Marion	44 min
Jul 7, 7:33 PM EDT	Tornado Warning	JAX	Alachua	12 min
Jul 7, 7:38 PM EDT	Severe Thunderstorm Warning	JAX	Gilchrist	52 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.