Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 20, NWS Jacksonville, FL

April 24, 2021Hamilton County, Florida; Echols County, Georgia

NWS Jacksonville, FL issued this tornado warning at Apr 24, 2021, 2:36 PM EDT for Hamilton County, Florida; Echols County, Georgia. It was in force for 24 min. 1 report 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: Apr 24, 2021, 2:36 PM EDT (18:36 UTC)
Expired: Apr 24, 2021, 3:00 PM EDT
In force: 24 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.25 in

Counties Hamilton County, FL, Echols County, GA

The radar

The Moody AFB radar (KVAX), 31 km from the middle of the area, began a volume at 18:38 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
Apr 24, 3:00 PM EDT	HAIL 2.5	2 E Statenville, GA	TENNIS BALL SIZE HAIL ESTIMATED FROM PUBLIC REPORT. HAIL DAMAGED VEHICLES WITH BROKEN WINDOWS AND DENTS ON TOP OF CAR. LOCATION ABOUT 2 MILES EAST OF STATENVILLE ON HIGHWAY 94.

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
Apr 24, 10:35 AM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.6 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: 175 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 447 m²/s²
0-3 km storm-relative helicity: 570 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

907 
WFUS52 KJAX 241836
TORJAX
FLC047-GAC101-241900-
/O.NEW.KJAX.TO.W.0020.210424T1836Z-210424T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
236 PM EDT Sat Apr 24 2021

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  Northwestern Hamilton County in northern Florida...
  Southwestern Echols County in southeastern Georgia...

* Until 300 PM EDT.
    
* At 236 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Lake Park, moving east at 40 mph.

  HAZARD...Tornado and half dollar 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...
  Jennings around 245 PM EDT.
  Statenville around 255 PM EDT.

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 3063 8314 3072 8313 3077 8313 3080 8293
      3057 8290 3054 8325 3055 8326 3059 8326
      3063 8328
TIME...MOT...LOC 1836Z 257DEG 34KT 3067 8324 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

BOOTHE

1 follow-up statement

967 
WWUS52 KJAX 241849
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
249 PM EDT Sat Apr 24 2021

FLC047-GAC101-241900-
/O.CON.KJAX.TO.W.0020.000000T0000Z-210424T1900Z/
Hamilton FL-Echols GA-
249 PM EDT Sat Apr 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM EDT FOR
NORTHWESTERN HAMILTON AND SOUTHWESTERN ECHOLS COUNTIES...
    
At 249 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Statenville, moving east at 40 mph.

HAZARD...Tornado and two inch 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...
  Statenville around 255 PM EDT.

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 3063 8314 3072 8313 3077 8313 3080 8293
      3057 8290 3056 8326 3059 8326 3063 8328
TIME...MOT...LOC 1849Z 257DEG 34KT 3070 8310 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

BOOTHE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 1:37 PM EDT	Special Marine Warning	JAX		113 min
Apr 24, 2:56 PM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton	49 min
Apr 24, 3:03 PM EDT	Tornado Warning	JAX	Columbia, Hamilton	27 min
Apr 24, 3:14 PM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton	46 min
Apr 24, 3:21 PM EDT	Special Weather Statement	JAX	Duval	24 min
Apr 24, 3:25 PM EDT	Special Marine Warning	JAX		79 min
Apr 24, 3:30 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Columbia	45 min
Apr 24, 3:40 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Columbia, Hamilton	35 min
Apr 24, 3:57 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Nassau	48 min
Apr 24, 4:10 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Columbia, Nassau	28 min
Apr 24, 4:18 PM EDT	Severe Thunderstorm Warning	JAX	Duval, Nassau	42 min
Apr 24, 4:44 PM EDT	Special Marine Warning	JAX		46 min
Apr 24, 5:10 PM EDT	Special Marine Warning	JAX		35 min
Apr 24, 5:20 PM EDT	Special Weather Statement	JAX	Duval	25 min
Apr 24, 5:31 PM EDT	Special Marine Warning	JAX		59 min
Apr 24, 6:11 PM EDT	Special Marine Warning	JAX		64 min
Apr 24, 10:57 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Clinch	48 min
Apr 24, 11:15 AM EDT	Severe Thunderstorm Warning	JAX	Coffee	45 min
Apr 24, 11:35 AM EDT	Severe Thunderstorm Warning	JAX	Bacon, Ware	40 min
Apr 24, 11:54 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson	21 min
Apr 24, 12:04 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Brantley, Pierce, Wayne	41 min
Apr 24, 12:08 PM EDT	Tornado Warning	JAX	Bacon	22 min
Apr 24, 12:18 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Bacon, Clinch, Pierce, Ware	31 min
Apr 24, 12:36 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	24 min
Apr 24, 12:40 PM EDT	Special Weather Statement	JAX	Clinch	50 min
Apr 24, 12:47 PM EDT	Special Weather Statement	JAX	Clinch, Pierce, Ware, Wayne	28 min
Apr 24, 1:20 PM EDT	Special Weather Statement	JAX	Brantley, Clinch, Ware	25 min
Apr 24, 1:46 PM EDT	Severe Thunderstorm Warning	JAX	Clinch, Echols	44 min
Apr 24, 1:50 PM EDT	Special Weather Statement	JAX	Camden, Charlton, Glynn	40 min
Apr 24, 2:15 PM EDT	Severe Thunderstorm Warning	JAX	Glynn	15 min
Apr 24, 2:32 PM EDT	Severe Thunderstorm Warning	JAX	Clinch, Echols	43 min
Apr 24, 3:48 PM EDT	Special Weather Statement	JAX	Camden	27 min
Apr 24, 5:40 PM EDT	Special Weather Statement	JAX	Coffee, Jeff Davis	35 min
Apr 24, 6:18 PM EDT	Special Weather Statement	JAX	Appling, Bacon, Coffee, Jeff Davis, Wayne	87 min
Apr 24, 6:39 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Coffee	36 min
Apr 24, 7:12 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Atkinson, Bacon, Coffee, Pierce, Ware	33 min
Apr 24, 7:40 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Brantley, Pierce, Ware, Wayne	35 min
Apr 24, 7:57 PM EDT	Special Weather Statement	JAX	Coffee, Jeff Davis	48 min

Nearby

Tornado Warnings in Florida, 2021 Tornado Warnings in Georgia, 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.