Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 7, NWS Jacksonville, FL

February 14, 2021Saint Johns County, Florida

NWS Jacksonville, FL issued this tornado warning at Feb 14, 2021, 2:40 PM EST for Saint Johns County, Florida. It was in force for 35 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 14, 2021, 2:40 PM EST (19:40 UTC)
Expired
Feb 14, 2021, 3:15 PM EST
In force
35 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Saint Johns County, FL

The radar

The Jacksonville radar (KJAX), 70 km from the middle of the area, began a volume at 19:42 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

TimeReportWhereRemark
Feb 14, 2:54 PM ESTFUNNEL CLOUD3 Sse Bakersville, FLRAIN WRAPPED FUNNEL CLOUD NEAR COUNTY ROAD 13A.
Feb 14, 2:54 PM ESTHAIL 0.251 S Bakersville, FLPEA SIZE HAIL NEAR COUNTY ROAD 13A NEAR BAKERSVILLE.

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

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 7.7 hours before the alert went out and 71 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2021-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2021-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 310 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
644 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
310 m²/s²
0-3 km storm-relative helicity
427 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

740 
WFUS52 KJAX 141940
TORJAX
FLC109-142015-
/O.NEW.KJAX.TO.W.0007.210214T1940Z-210214T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
240 PM EST Sun Feb 14 2021

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  Central St. Johns County in northeastern Florida...

* Until 315 PM EST.
    
* At 239 PM EST, a severe thunderstorm capable of producing a tornado
  was located near World Golf Village, or near Saint Augustine,
  moving northeast at 35 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...
  Saint Augustine around 245 PM EST.
  Vilano Beach around 250 PM EST.
  South Ponte Vedra around 255 PM EST.

Other locations impacted by this tornadic thunderstorm include
Bakersville.

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 2984 8148 2989 8152 3008 8130 2991 8125
TIME...MOT...LOC 1939Z 234DEG 32KT 2992 8141 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

WOLF
2 follow-up statements
488 
WWUS52 KJAX 141954
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
254 PM EST Sun Feb 14 2021

FLC109-142015-
/O.CON.KJAX.TO.W.0007.000000T0000Z-210214T2015Z/
St. Johns FL-
254 PM EST Sun Feb 14 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EST FOR CENTRAL
ST. JOHNS COUNTY...
    
At 253 PM EST, a severe thunderstorm capable of producing a tornado
was located over South Ponte Vedra, or 9 miles north of Saint 
Augustine, moving northeast at 35 mph. This storm will move 
offshore. A second storm with rotation was located southeast of 
Bakersville...heading toward Vilano Beach. This storm could produce 
a tornado at any time. A spotter reported a possible funnel cloud 
with this second storm. 

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
central St. Johns County, including the following locations...
Bakersville.

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.

&&

LAT...LON 2984 8148 2989 8152 3008 8130 2991 8125
TIME...MOT...LOC 1953Z 223DEG 32KT 3003 8132 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

WOLF
485 
WWUS52 KJAX 142007
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
307 PM EST Sun Feb 14 2021

FLC109-142015-
/O.CON.KJAX.TO.W.0007.000000T0000Z-210214T2015Z/
St. Johns FL-
307 PM EST Sun Feb 14 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EST FOR EAST
CENTRAL ST. JOHNS COUNTY...
    
At 306 PM EST, a cluster of strong storms with rotation was located 
northwest of St. Augustine, moving northeast at 35 mph. The storms 
have weakened, and if the trend continues, the warning will be 
allowed to expire at 315 pm.   

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.

Locations impacted include...
Saint Augustine, South Ponte Vedra and Vilano Beach. 

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.

&&

LAT...LON 2986 8145 2990 8148 3008 8130 2993 8126
      2991 8126
TIME...MOT...LOC 2006Z 234DEG 32KT 3009 8123 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

WOLF

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 14, 4:56 AM ESTSpecial Marine WarningJAX40 min
Feb 14, 12:37 PM ESTSpecial Weather StatementJAXAlachua, Bradford, Gilchrist, Union53 min
Feb 14, 1:13 PM ESTSpecial Weather StatementJAXPutnam47 min
Feb 14, 1:24 PM ESTSpecial Weather StatementJAXAlachua51 min
Feb 14, 1:43 PM ESTSevere Thunderstorm WarningJAXClay, Putnam47 min
Feb 14, 1:48 PM ESTTornado WarningJAXClay, Putnam27 min
Feb 14, 2:13 PM ESTTornado WarningJAXPutnam, Saint Johns32 min
Feb 14, 2:40 PM ESTSpecial Weather StatementJAXPutnam, Saint Johns65 min
Feb 14, 2:43 PM ESTSpecial Marine WarningJAX62 min
Feb 14, 2:44 PM ESTSpecial Marine WarningJAX61 min
Feb 14, 3:17 PM ESTSpecial Weather StatementJAXFlagler28 min
Feb 14, 3:21 PM ESTAreal Flood WarningJAXClay, Flagler, Putnam, Saint Johns114 min
Feb 14, 3:41 PM ESTSpecial Marine WarningJAX64 min
Feb 14, 4:42 PM ESTSpecial Marine WarningJAX48 min

Nearby

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