Alert archive / Florida / Tornado Warnings in 2021

Tornado Warning 7, NWS Tallahassee, FL

February 15, 2021Lafayette County, Florida

NWS Tallahassee, FL issued this tornado warning at Feb 15, 2021, 3:39 PM EST for Lafayette County, Florida. It was in force for 21 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: Feb 15, 2021, 3:39 PM EST (20:39 UTC)
Expired: Feb 15, 2021, 4:00 PM EST
In force: 21 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Lafayette County, FL

The radar

The Moody AFB radar (KVAX), 104 km from the middle of the area, began a volume at 20:42 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.

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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.7 hours before the alert went out and 136 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: 468 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 252 m²/s²
0-3 km storm-relative helicity: 303 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

849 
WFUS52 KTAE 152039
TORTAE
FLC067-152100-
/O.NEW.KTAE.TO.W.0007.210215T2039Z-210215T2100Z/

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

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Southeastern Lafayette County in Big Bend of Florida...

* Until 400 PM EST.
    
* At 339 PM EST, a severe thunderstorm capable of producing a tornado
  was located 7 miles south of Obrien, or 12 miles west of
  Ichetucknee Spring, moving northeast at 40 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
  southeastern Lafayette County, including the following locations...
  Grady.

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 8302 2990 8307 3003 8301 3001 8300
      3001 8298 2999 8296 2996 8295 2996 8293
      2993 8292
TIME...MOT...LOC 2039Z 213DEG 34KT 2994 8298 

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

$$

21-WD

1 follow-up statement

698 
WWUS52 KTAE 152052
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
352 PM EST Mon Feb 15 2021

FLC067-152102-
/O.EXP.KTAE.TO.W.0007.000000T0000Z-210215T2100Z/
Lafayette FL-
352 PM EST Mon Feb 15 2021

...THE TORNADO WARNING FOR SOUTHEASTERN LAFAYETTE COUNTY WILL EXPIRE
AT 400 PM EST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1000 PM EST for Big Bend of
Florida.

LAT...LON 2986 8302 2990 8307 3003 8301 3001 8300
      3001 8298 2999 8296 2996 8295 2996 8293
      2993 8292
TIME...MOT...LOC 2052Z 213DEG 34KT 3003 8291 

$$

21-WD

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 2:11 AM EST	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	41 hr
Feb 15, 2:16 AM EST	Small Craft Advisory	TAE		29 hr
Feb 15, 1:35 PM EST	Special Marine Warning	TAE		3 hr
Feb 15, 1:53 PM EST	Severe Thunderstorm Warning	TAE	Walton	67 min
Feb 15, 2:12 PM EST	Special Marine Warning	TAE		3 hr
Feb 15, 2:36 PM EST	Severe Thunderstorm Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	54 min
Feb 15, 2:39 PM EST	Wind Chill Advisory	TAE	Holmes, Walton	20 hr
Feb 15, 2:43 PM EST	Severe Thunderstorm Warning	TAE	Lafayette, Madison, Taylor	62 min
Feb 15, 3:02 PM EST	Tornado Warning	TAE	Bay, Walton, Washington	28 min
Feb 15, 3:22 PM EST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf, Holmes, Jackson, Liberty and 1 more	53 min
Feb 15, 3:24 PM EST	Severe Thunderstorm Warning	TAE	Madison	55 min
Feb 15, 3:41 PM EST	Tornado Warning	TAE	Bay, Jackson, Washington	12 min
Feb 15, 4:03 PM EST	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson, Leon, Liberty, Wakulla	57 min
Feb 15, 4:25 PM EST	Special Marine Warning	TAE		2 hr
Feb 15, 5:11 PM EST	Severe Thunderstorm Warning	TAE	Jefferson, Madison, Taylor	64 min
Feb 15, 5:53 PM EST	Severe Thunderstorm Warning	TAE	Lafayette, Madison, Taylor	26 min
Feb 15, 6:22 PM EST	Special Marine Warning	TAE		38 min
Feb 15, 6:40 PM EST	Severe Thunderstorm Warning	TAE	Dixie	35 min
Feb 15, 6:56 PM EST	Special Marine Warning	TAE		34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.