Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 34, NWS Jacksonville, FL

July 7, 2021Columbia County, Suwannee County, Florida

NWS Jacksonville, FL issued this tornado warning at Jul 7, 2021, 7:02 AM EDT for Columbia County, Suwannee County, Florida. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 7, 2021, 7:02 AM EDT (11:02 UTC)
Expired: Jul 7, 2021, 7:30 AM EDT
In force: 28 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Columbia County, FL, Suwannee County, FL

The radar

The Moody AFB radar (KVAX), 84 km from the middle of the area, began a volume at 11:03 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 7, 6:46 AM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 11.0 hours before the alert went out and 114 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: 1886 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 813 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -31 m²/s²
0-3 km storm-relative helicity: -27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

805 
WFUS52 KJAX 071102
TORJAX
FLC023-121-071130-
/O.NEW.KJAX.TO.W.0034.210707T1102Z-210707T1130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
702 AM EDT Wed Jul 7 2021

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  West central Columbia County in northern Florida...
  East central Suwannee County in northern Florida...

* Until 730 AM EDT.
    
* At 702 AM EDT, a vigorous shower capable of producing a tornado 
  was located near Columbia, or 9 miles southwest of Lake City, 
  moving northwest at 30 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Wellborn around 715 AM EDT.

Other locations impacted by this tornadic thunderstorm include
Houston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a 
sturdy building. Avoid windows. If you are outdoors, in a mobile 
home, or in a vehicle, move to the closest substantial shelter and 
protect yourself from flying debris.

&&

LAT...LON 3011 8271 3006 8277 3020 8304 3029 8287
TIME...MOT...LOC 1102Z 136DEG 26KT 3012 8279 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

BOOTHE

1 follow-up statement

793 
WWUS52 KJAX 071114
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
714 AM EDT Wed Jul 7 2021

FLC023-071123-
/O.CAN.KJAX.TO.W.0034.000000T0000Z-210707T1130Z/
Columbia FL-
714 AM EDT Wed Jul 7 2021

...THE TORNADO WARNING FOR WEST CENTRAL COLUMBIA COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 100 PM EDT for northern
Florida.

LAT...LON 3020 8304 3029 8287 3021 8279 3015 8279
      3011 8287
TIME...MOT...LOC 1113Z 136DEG 26KT 3018 8286 

$$

FLC121-071130-
/O.CON.KJAX.TO.W.0034.000000T0000Z-210707T1130Z/
Suwannee FL-
714 AM EDT Wed Jul 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 AM EDT FOR EAST
CENTRAL SUWANNEE COUNTY...
    
At 713 AM EDT, a vigorous shower capable of producing a tornado was 
located near Wellborn, or 11 miles southeast of Live Oak, moving 
northwest at 30 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
east central Suwannee County, including the following locations...
Houston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a 
sturdy building. Avoid windows. If you are outdoors, in a mobile 
home, or in a vehicle, move to the closest substantial shelter and 
protect yourself from flying debris.

&&

LAT...LON 3020 8304 3029 8287 3021 8279 3015 8279
      3011 8287
TIME...MOT...LOC 1113Z 136DEG 26KT 3018 8286 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

BOOTHE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 9:53 PM EDT	River Flood Warning	JAX	Alachua, Columbia	13 days
Jul 6, 9:54 PM EDT	River Flood Warning	JAX	Columbia, Hamilton, Suwannee	48 hr
Jul 6, 9:54 PM EDT	River Flood Warning	JAX	Hamilton, Suwannee	71 hr
Jul 6, 11:03 PM EDT	Rip Current Statement	JAX	Duval, Flagler, Nassau	28 hr
Jul 7, 4:02 AM EDT	Tornado Warning	JAX	Alachua, Marion	28 min
Jul 7, 4:29 AM EDT	Tornado Warning	JAX	Alachua, Marion	31 min
Jul 7, 4:33 AM EDT	Tornado Warning	JAX	Marion	27 min
Jul 7, 5:05 AM EDT	Special Weather Statement	JAX	Alachua, Marion	40 min
Jul 7, 5:41 AM EDT	Special Weather Statement	JAX	Alachua, Gilchrist	49 min
Jul 7, 6:02 AM EDT	Tornado Warning	JAX	Alachua, Bradford, Union	28 min
Jul 7, 6:33 AM EDT	Special Weather Statement	JAX	Alachua, Suwannee, Union	57 min
Jul 7, 6:40 AM EDT	Tornado Warning	JAX	Alachua, Columbia, Union	35 min
Jul 7, 7:23 AM EDT	Special Weather Statement	JAX	Baker, Bradford, Clay, Columbia, Hamilton, Union	67 min
Jul 7, 8:31 AM EDT	Special Weather Statement	JAX	Baker, Hamilton	44 min
Jul 7, 8:39 AM EDT	Tornado Warning	JAX	Baker, Columbia	11 min
Jul 7, 9:59 AM EDT	Special Weather Statement	JAX	Nassau	46 min
Jul 7, 12:00 PM EDT	Areal Flood Warning	JAX	Alachua, Bradford, Columbia, Gilchrist, Hamilton, Suwannee and 1 more	3 hr
Jul 7, 1:38 PM EDT	Areal Flood Warning	JAX	Alachua, Baker, Bradford, Clay, Columbia, Duval and 4 more	3 hr
Jul 7, 2:45 PM EDT	Special Weather Statement	JAX	Flagler, Saint Johns	60 min
Jul 7, 2:47 PM EDT	Special Weather Statement	JAX	Baker, Clay, Duval, Nassau	58 min
Jul 7, 2:49 PM EDT	Areal Flood Warning	JAX	Hamilton, Suwannee	116 min
Jul 7, 2:54 PM EDT	Areal Flood Warning	JAX	Alachua, Bradford	111 min
Jul 7, 3:24 PM EDT	River Flood Warning	JAX	Columbia, Gilchrist, Suwannee	93 days
Jul 7, 3:31 PM EDT	Areal Flood Warning	JAX	Baker, Clay, Duval, Nassau	2 hr
Jul 7, 3:45 PM EDT	Special Weather Statement	JAX	Clay, Duval, Nassau, Saint Johns	60 min
Jul 7, 4:32 PM EDT	Tornado Warning	JAX	Duval, Saint Johns	28 min
Jul 7, 4:45 PM EDT	Special Weather Statement	JAX	Duval, Nassau	60 min
Jul 7, 4:54 PM EDT	Tornado Warning Tornado observed	JAX	Duval, Nassau	36 min
Jul 7, 5:15 PM EDT	Areal Flood Warning	JAX	Duval, Nassau, Saint Johns	2 hr
Jul 7, 6:42 PM EDT	Special Marine Warning	JAX		93 min
Jul 7, 7:18 PM EDT	Areal Flood Warning	JAX	Nassau	117 min

Nearby

Tornado Warnings in Florida, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.