Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 37, NWS Jacksonville, FL

July 7, 2021Duval County, Saint Johns County, Florida

NWS Jacksonville, FL issued this tornado warning at Jul 7, 2021, 4:32 PM EDT for Duval County, Saint Johns County, Florida. It was in force for 28 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 7, 2021, 4:32 PM EDT (20:32 UTC)
Expired: Jul 7, 2021, 5:00 PM EDT
In force: 28 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Duval County, FL, Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 31 km from the middle of the area, began a volume at 20:35 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.

What was reported inside it

Time	Report	Where	Remark
Jul 7, 4:48 PM EDT	TSTM WND DMG	5 S Arlington, FL	STORM DAMAGE TO PRIVATE PROPERTY IN THE AREA OF PHILLIPS HIGHWAY AND BOWDEN ROAD POSSIBLY ASSOCIATED WITH A POTENTIAL TORNADO IN THE OUTER BANDS OF TS ELSA.
Jul 7, 4:49 PM EDT	TORNADO	4 S Arlington, FL	RADAR INDICATED A DEBRIS BALL CONFIRMING A TORNADO IN CONCERT WITH VERBAL CONFIRMATION FROM EMERGENCY MANAGEMENT FOR DAMAGE CONSISTENT OF A TORNADO IN THE 5400 BLOCK OF TIFTON AVENUE AND THE 5300 BLOCK OF KENNERLY ROAD. THE NATIONAL WEATHER SERVICE WILL BE COM
Jul 7, 4:49 PM EDT	TORNADO	5 S Arlington, FL	DOPPLER RADAR AND PUBLIC VIDEOS CONFIRMED A TORNADO IN JACKSONVILLE, FLORIDA. THERE WAS PRIVATE PROPERTY DAMAGE NEAR PHILLIPS HIGHWAY AND BOWDEN ROAD. THERE WAS ALSO COMMERICAL PARK AND PRIVATE PROPERTY DAMAGE ON POWERS AVENUE AND BOWENDALE AVENUE. THE NATIONA
Jul 7, 5:10 PM EDT	TSTM WND DMG	5 S Arlington, FL	TREES DOWN AND DEBRIS ON THE ROAD AT UNIVERSITY AND I-95. POWER IS OUT PARTS OF THE AREA. REPORTED BY MEDIA VIA TWITTER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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, 1:04 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 8.5 hours before the alert went out and 33 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: 1540 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 838 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

559 
WFUS52 KJAX 072032
TORJAX
FLC031-109-072100-
/O.NEW.KJAX.TO.W.0037.210707T2032Z-210707T2100Z/

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

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  Northwestern St. Johns County in northeastern Florida...
  Eastern Duval County in northeastern Florida...

* Until 500 PM EDT.
    
* At 432 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Fruit Cove, moving north 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...
  Nas Jax around 445 PM EDT.
  Baymeadows and Ortega around 450 PM EDT.
  Unf, San Marco and Riverside around 455 PM EDT.
  Arlington, Craig Field and Fort Caroline around 500 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Tallyrand.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3005 8154 3007 8169 3012 8168 3014 8169
      3017 8169 3019 8168 3019 8171 3045 8171
      3051 8155 3040 8140
TIME...MOT...LOC 2032Z 189DEG 27KT 3012 8162 

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

$$

HESS

3 follow-up statements

097 
WWUS52 KJAX 072037
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
437 PM EDT Wed Jul 7 2021

FLC109-072047-
/O.CAN.KJAX.TO.W.0037.000000T0000Z-210707T2100Z/
St. Johns FL-
437 PM EDT Wed Jul 7 2021

...THE TORNADO WARNING FOR NORTHWESTERN ST. JOHNS 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 800 PM EDT for northeastern
Florida.

LAT...LON 3010 8152 3010 8154 3012 8154 3012 8157
      3013 8160 3012 8168 3014 8169 3017 8169
      3019 8168 3019 8171 3045 8171 3051 8155
      3040 8140
TIME...MOT...LOC 2037Z 189DEG 27KT 3016 8161 

$$

FLC031-072100-
/O.CON.KJAX.TO.W.0037.000000T0000Z-210707T2100Z/
Duval FL-
437 PM EDT Wed Jul 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR EASTERN
DUVAL COUNTY...
    
At 437 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Mandarin, moving north 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...
  Nas Jax around 445 PM EDT.
  Baymeadows and Ortega around 450 PM EDT.
  Unf, San Marco and Riverside around 455 PM EDT.
  Arlington, Craig Field and Fort Caroline around 500 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Tallyrand.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3010 8152 3010 8154 3012 8154 3012 8157
      3013 8160 3012 8168 3014 8169 3017 8169
      3019 8168 3019 8171 3045 8171 3051 8155
      3040 8140
TIME...MOT...LOC 2037Z 189DEG 27KT 3016 8161 

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

$$

HESS

956 
WWUS52 KJAX 072043
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
443 PM EDT Wed Jul 7 2021

FLC031-072100-
/O.CON.KJAX.TO.W.0037.000000T0000Z-210707T2100Z/
Duval FL-
443 PM EDT Wed Jul 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR EASTERN
DUVAL COUNTY...
    
At 443 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Baymeadows, or near Mandarin, moving north 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...
  Unf, San Marco and Riverside around 455 PM EDT.
  Arlington and Craig Field around 500 PM EDT.
  Fort Caroline around 510 PM EDT.
  Oceanway around 515 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Tallyrand.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3019 8153 3016 8160 3019 8168 3045 8171
      3051 8155 3040 8142
TIME...MOT...LOC 2043Z 189DEG 27KT 3021 8160 

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

$$

HESS

687 
WWUS52 KJAX 072050
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
450 PM EDT Wed Jul 7 2021

FLC031-072100-
/O.CON.KJAX.TO.W.0037.000000T0000Z-210707T2100Z/
Duval FL-
450 PM EDT Wed Jul 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR EASTERN
DUVAL COUNTY...
    
At 450 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Baymeadows, or near Unf, moving north 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...
  San Marco around 455 PM EDT.
  Arlington and Craig Field around 500 PM EDT.
  Fort Caroline around 510 PM EDT.
  Oceanway around 515 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Tallyrand.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3024 8154 3021 8160 3025 8166 3045 8171
      3051 8155 3042 8145
TIME...MOT...LOC 2050Z 189DEG 27KT 3026 8159 

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

$$

HESS

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, 7:02 AM EDT	Tornado Warning	JAX	Columbia, Suwannee	28 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, 4:45 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.