Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 11, NWS Tallahassee, FL

February 15, 2021Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 15, 2021, 12:53 PM CST for Walton County, Florida. It was in force for 67 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, 12:53 PM CST (18:53 UTC)
Expired: Feb 15, 2021, 2:00 PM CST
In force: 67 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 32 km from the middle of the area, began a volume at 18:53 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, 11:55 AM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 186 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.

213 
WUUS52 KTAE 151853
SVRTAE
FLC131-152000-
/O.NEW.KTAE.SV.W.0011.210215T1853Z-210215T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
1253 PM CST Mon Feb 15 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Walton County in the Panhandle of Florida...

* Until 200 PM CST.

* At 1253 PM CST, severe thunderstorms were located along a line
  extending from near Baker to 15 miles south of Mary Esther, moving
  northeast at 80 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Santa Rosa Beach, De Funiak Springs, Eglin Air Force Base, Union,
  Liberty, Freeport, Paxton, Pond Creek, Oakwood Hills, Cluster
  Springs, Gaskin, Portland, Alpine Heights, Villa Tasso, Darlington,
  Blue Mountain Beach, De Funiak Spring Airport, Seaside, Rock Hill
  and Glendale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 PM CST for the Panhandle
of Florida.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3040 8640 3038 8633 3042 8631 3039 8626
      3040 8623 3042 8627 3043 8625 3038 8616
      3039 8611 3044 8616 3047 8613 3046 8619
      3050 8620 3048 8622 3046 8639 3099 8639
      3099 8604 3023 8602 3022 8607 3030 8639
TIME...MOT...LOC 1853Z 225DEG 71KT 3081 8665 3019 8661 

HAIL...1.00IN
WIND...60MPH
 
$$

11-MM

1 follow-up statement

944 
WWUS52 KTAE 151926
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
126 PM CST Mon Feb 15 2021

FLC131-152000-
/O.CON.KTAE.SV.W.0011.000000T0000Z-210215T2000Z/
Walton FL-
126 PM CST Mon Feb 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CST
FOR WALTON COUNTY...

At 126 PM CST, severe thunderstorms were located along a line
extending from near Florala to near Santa Rosa Beach, moving east at
30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Santa Rosa Beach, De Funiak Springs, Eglin Air Force Base, Union,
Liberty, Freeport, Paxton, Pond Creek, Oakwood Hills, Cluster
Springs, Gaskin, Portland, Alpine Heights, Villa Tasso, Darlington,
Blue Mountain Beach, De Funiak Spring Airport, Seaside, Rock Hill and
Glendale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 PM CST for the Panhandle
of Florida.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3040 8640 3038 8633 3042 8631 3039 8626
      3040 8623 3042 8627 3043 8625 3038 8616
      3039 8611 3044 8616 3047 8613 3046 8619
      3050 8620 3048 8622 3046 8639 3099 8639
      3099 8604 3023 8602 3022 8607 3030 8639
TIME...MOT...LOC 1926Z 251DEG 28KT 3096 8634 3034 8630 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

11-MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 1:11 AM CST	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	41 hr
Feb 15, 1:16 AM CST	Small Craft Advisory	TAE		29 hr
Feb 15, 12:35 PM CST	Special Marine Warning	TAE		3 hr
Feb 15, 1:12 PM CST	Special Marine Warning	TAE		3 hr
Feb 15, 1:36 PM CST	Severe Thunderstorm Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	54 min
Feb 15, 1:39 PM CST	Wind Chill Advisory	TAE	Holmes, Walton	20 hr
Feb 15, 1:43 PM CST	Severe Thunderstorm Warning	TAE	Lafayette, Madison, Taylor	62 min
Feb 15, 2:02 PM CST	Tornado Warning	TAE	Bay, Walton, Washington	28 min
Feb 15, 2:22 PM CST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf, Holmes, Jackson, Liberty and 1 more	53 min
Feb 15, 2:24 PM CST	Severe Thunderstorm Warning	TAE	Madison	55 min
Feb 15, 2:39 PM CST	Tornado Warning	TAE	Lafayette	21 min
Feb 15, 2:41 PM CST	Tornado Warning	TAE	Bay, Jackson, Washington	12 min
Feb 15, 3:03 PM CST	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson, Leon, Liberty, Wakulla	57 min
Feb 15, 3:25 PM CST	Special Marine Warning	TAE		2 hr
Feb 15, 4:11 PM CST	Severe Thunderstorm Warning	TAE	Jefferson, Madison, Taylor	64 min
Feb 15, 4:53 PM CST	Severe Thunderstorm Warning	TAE	Lafayette, Madison, Taylor	26 min
Feb 15, 5:22 PM CST	Special Marine Warning	TAE		38 min
Feb 15, 5:40 PM CST	Severe Thunderstorm Warning	TAE	Dixie	35 min
Feb 15, 5:56 PM CST	Special Marine Warning	TAE		34 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021 Every severe thunderstorm warning 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.