Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 10, NWS Jacksonville, FL

February 15, 2021Putnam County, Saint Johns County, Florida

NWS Jacksonville, FL issued this tornado warning at Feb 15, 2021, 4:04 PM EST for Putnam County, Saint Johns County, Florida. It was in force for 41 min. 2 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: Feb 15, 2021, 4:04 PM EST (21:04 UTC)
Expired: Feb 15, 2021, 4:45 PM EST
In force: 41 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Putnam County, FL, Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 82 km from the middle of the area, began a volume at 21:03 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.

What was reported inside it

Time	Report	Where	Remark
Feb 15, 4:30 PM EST	HAIL 1	3 Ene Bakersville, FL	QUARTER AND DIME SIZED HAIL REPORTED NEAR WYNWOOD RANCH.
Feb 15, 4:41 PM EST	HAIL 1	4 Sw South Ponte Vedra, FL	DEPUTY EM IN ST. JOHNS COUNTY REPORTED LARGE HAIL ABOUT 1 INCH IN DIAMETER JUST NORTH OF ST. AUGUSTINE AIRPORT. TIMING ESTIMATED BASED ON RADAR DATA.

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
Feb 15, 3:02 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 9.1 hours before the alert went out and 83 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 408 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

327 
WFUS52 KJAX 152104
TORJAX
FLC107-109-152145-
/O.NEW.KJAX.TO.W.0010.210215T2104Z-210215T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
404 PM EST Mon Feb 15 2021

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  Southeastern St. Johns County in northeastern Florida...
  Northeastern Putnam County in northeastern Florida...

* Until 445 PM EST.
    
* At 404 PM EST, a severe thunderstorm capable of producing a tornado
  was located over Federal Point, or near Hastings, moving northeast
  at 25 mph.

  HAZARD...Tornado and quarter size hail.

  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...
  Hastings around 410 PM EST.
  Saint Augustine Shores around 440 PM EST.
  Saint Augustine, Saint Augustine Beach, Saint Augustine South, 
  Butler Beach and Vilano Beach around 445 PM EST.

Other locations impacted by this tornadic thunderstorm include Spuds,
Anastasia, Dupont Center and Elkton.

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.

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 2974 8121 2968 8161 2978 8163 3005 8131
TIME...MOT...LOC 2104Z 236DEG 22KT 2974 8158 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

HESS

2 follow-up statements

588 
WWUS52 KJAX 152126
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
426 PM EST Mon Feb 15 2021

FLC107-152136-
/O.CAN.KJAX.TO.W.0010.000000T0000Z-210215T2145Z/
Putnam FL-
426 PM EST Mon Feb 15 2021

...THE TORNADO WARNING FOR NORTHEASTERN PUTNAM 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 1000 PM EST for northeastern
Florida.

LAT...LON 2974 8148 2986 8154 3005 8131 2978 8122
TIME...MOT...LOC 2126Z 236DEG 22KT 2982 8145 

$$

FLC109-152145-
/O.CON.KJAX.TO.W.0010.000000T0000Z-210215T2145Z/
St. Johns FL-
426 PM EST Mon Feb 15 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EST FOR CENTRAL
ST. JOHNS COUNTY...
    
At 426 PM EST, a severe thunderstorm capable of producing a tornado
was located 7 miles northeast of Federal Point, or 7 miles northeast
of Hastings, moving northeast at 25 mph.

HAZARD...Tornado and ping pong ball size hail.

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...
  Saint Augustine Shores around 440 PM EST.
  Saint Augustine South around 445 PM EST.
  Saint Augustine, Saint Augustine Beach and Butler Beach around 450 
  PM EST.
  Vilano Beach around 455 PM EST.
  South Ponte Vedra around 500 PM EST.

Other locations impacted by this tornadic thunderstorm include
Anastasia and Elkton.

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 2974 8148 2986 8154 3005 8131 2978 8122
TIME...MOT...LOC 2126Z 236DEG 22KT 2982 8145 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

HESS

058 
WWUS52 KJAX 152133
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
433 PM EST Mon Feb 15 2021

FLC109-152145-
/O.CON.KJAX.TO.W.0010.000000T0000Z-210215T2145Z/
St. Johns FL-
433 PM EST Mon Feb 15 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EST FOR EAST
CENTRAL ST. JOHNS COUNTY...
    
At 433 PM EST, a severe thunderstorm capable of producing a tornado
was located near Saint Augustine, moving northeast at 30 mph.

HAZARD...Tornado and golf ball size hail.

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...
  Vilano Beach around 445 PM EST.
  South Ponte Vedra around 450 PM EST.

Other locations impacted by this tornadic thunderstorm include
Anastasia.

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 2981 8145 2991 8148 3002 8134 3005 8131
      2988 8125
TIME...MOT...LOC 2133Z 231DEG 26KT 2992 8138 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

HESS

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 3:07 AM EST	Small Craft Advisory	JAX		31 hr
Feb 15, 9:25 AM EST	Marine Dense Fog Advisory	JAX		5 hr
Feb 15, 2:23 PM EST	Special Weather Statement	JAX	Putnam	52 min
Feb 15, 2:37 PM EST	Tornado Warning	JAX	Putnam	38 min
Feb 15, 2:53 PM EST	Special Weather Statement	JAX	Saint Johns	52 min
Feb 15, 3:00 PM EST	Special Weather Statement	JAX	Marion	45 min
Feb 15, 3:15 PM EST	Special Weather Statement	JAX	Putnam	45 min
Feb 15, 3:18 PM EST	Special Weather Statement	JAX	Hamilton, Suwannee	57 min
Feb 15, 3:36 PM EST	Tornado Warning	JAX	Columbia, Gilchrist, Suwannee	39 min
Feb 15, 3:41 PM EST	Severe Thunderstorm Warning	JAX	Clay, Putnam, Saint Johns	49 min
Feb 15, 3:46 PM EST	Special Weather Statement	JAX	Putnam	44 min
Feb 15, 4:09 PM EST	Tornado Warning	JAX	Columbia, Hamilton, Suwannee	36 min
Feb 15, 4:13 PM EST	Special Marine Warning	JAX		92 min
Feb 15, 4:13 PM EST	Special Weather Statement	JAX	Hamilton	47 min
Feb 15, 4:16 PM EST	Special Weather Statement	JAX	Clay	44 min
Feb 15, 4:21 PM EST	Severe Thunderstorm Warning	JAX	Clay, Duval, Putnam, Saint Johns	39 min
Feb 15, 4:43 PM EST	Tornado Warning	JAX	Saint Johns	17 min
Feb 15, 4:44 PM EST	Severe Thunderstorm Warning	JAX	Baker, Columbia	46 min
Feb 15, 4:48 PM EST	Special Weather Statement	JAX	Clay, Duval, Nassau	57 min
Feb 15, 4:57 PM EST	Tornado Warning	JAX	Baker	33 min
Feb 15, 5:18 PM EST	Special Weather Statement	JAX	Duval	27 min
Feb 15, 5:26 PM EST	Special Marine Warning	JAX		64 min
Feb 15, 5:53 PM EST	Special Weather Statement	JAX	Nassau	37 min
Feb 15, 6:17 PM EST	Special Weather Statement	JAX	Gilchrist, Hamilton, Suwannee	43 min
Feb 15, 6:22 PM EST	Special Marine Warning	JAX		64 min
Feb 15, 6:58 PM EST	Special Weather Statement	JAX	Columbia, Gilchrist, Hamilton, Suwannee	62 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.