Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 78, NWS Tallahassee, FL

December 11, 2021Holmes County, Walton County, Florida; Geneva County, Alabama

NWS Tallahassee, FL issued this tornado warning at Dec 11, 2021, 4:36 PM CST for Holmes County, Walton County, Florida; Geneva County, Alabama. It was in force for 24 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: Dec 11, 2021, 4:36 PM CST (22:36 UTC)
Expired: Dec 11, 2021, 5:00 PM CST
In force: 24 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Geneva County, AL, Holmes County, FL, Walton County, FL

The radar

The Eglin Afb radar (KEVX), 53 km from the middle of the area, began a volume at 22:40 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 nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.6 hours before the alert went out and 192 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: 50 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 496 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

247 
WFUS52 KTAE 112236
TORTAE
ALC061-FLC059-131-112300-
/O.NEW.KTAE.TO.W.0078.211211T2236Z-211211T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
436 PM CST Sat Dec 11 2021

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Southwestern Geneva County in southeastern Alabama...
  North central Walton County in the Panhandle of Florida...
  Northwestern Holmes County in the Panhandle of Florida...

* Until 500 PM CST.
    
* At 436 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Florala, moving east at 20 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
  southwestern Geneva, north central Walton and northwestern Holmes
  Counties, including the following locations... Darlington, Gaskin
  and Paxton.

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 3099 8626 3099 8619 3103 8619 3106 8603
      3095 8599 3091 8627 3097 8631
TIME...MOT...LOC 2236Z 248DEG 19KT 3095 8625 

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

$$

02-MONTGOMERY

1 follow-up statement

749 
WWUS52 KTAE 112250
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
450 PM CST Sat Dec 11 2021

ALC061-FLC059-131-112300-
/O.CON.KTAE.TO.W.0078.000000T0000Z-211211T2300Z/
Geneva AL-Walton FL-Holmes FL-
450 PM CST Sat Dec 11 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CST FOR
SOUTHWESTERN GENEVA...NORTH CENTRAL WALTON AND NORTHWESTERN HOLMES
COUNTIES...
    
At 450 PM CST, a severe thunderstorm capable of producing a tornado
was located 9 miles east of Florala, moving east at 20 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.

Locations impacted include...
Gaskin.

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 3098 8622 3099 8619 3103 8619 3106 8603
      3095 8599 3094 8618
TIME...MOT...LOC 2250Z 249DEG 20KT 3098 8616 

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

$$

02-MONTGOMERY

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 8:01 PM CST	Dense Fog Advisory	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 7 more	13 hr
Dec 11, 4:15 AM CST	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	43 hr
Dec 11, 2:19 PM CST	Special Weather Statement	TAE	Coffee	56 min
Dec 11, 2:51 PM CST	Special Weather Statement	TAE	Geneva	54 min
Dec 11, 3:06 PM CST	Special Weather Statement	TAE	Dale	24 min
Dec 11, 3:29 PM CST	Severe Thunderstorm Warning	TAE	Dale, Henry	46 min
Dec 11, 4:15 PM CST	Special Weather Statement	TAE	Henry	45 min

Nearby

Tornado Warnings in Florida, 2021 Tornado Warnings in Alabama, 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.