Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 14, NWS Tallahassee, FL

April 22, 2018Walton County, Florida

NWS Tallahassee, FL issued this tornado warning at Apr 22, 2018, 3:21 PM CDT for Walton County, Florida. It was in force for 35 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
Apr 22, 2018, 3:21 PM CDT (20:21 UTC)
Expired
Apr 22, 2018, 3:56 PM CDT
In force
35 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 34 km from the middle of the area, began a volume at 20:23 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.

IssuedProductOfficeLasted
Apr 22, 2:55 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.4 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2018-04-22Temperature 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, Tallahassee Rgnl, FL at 12:00Z on 2018-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 265 square meters per square second.193958Sfc1 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
640 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
265 m²/s²
0-3 km storm-relative helicity
347 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

989 
WFUS52 KTAE 222021
TORTAE
FLC131-222115-
/O.NEW.KTAE.TO.W.0014.180422T2021Z-180422T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
321 PM CDT SUN APR 22 2018

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Southwestern Walton County in the Panhandle of Florida...

* Until 415 PM CDT.
    
* At 321 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles southeast of Destin, moving northeast at 25
  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...
  Santa Rosa Beach around 345 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Portland, Villa Tasso, Gulf Pines, Freeport, Blue Mountain Beach,
Sandestin, Miramar Beach and Four Mile Village.

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 3039 8639 3038 8633 3045 8631 3047 8631
      3048 8632 3046 8639 3052 8639 3055 8619
      3051 8606 3039 8611 3042 8614 3043 8612
      3044 8616 3048 8614 3046 8619 3041 8622
      3037 8612 3032 8622 3036 8639
TIME...MOT...LOC 2021Z 217DEG 20KT 3033 8638 

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

$$

42-DVD
3 follow-up statements
324 
WWUS52 KTAE 222039
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
339 PM CDT SUN APR 22 2018

FLC131-222115-
/O.CON.KTAE.TO.W.0014.000000T0000Z-180422T2115Z/
Walton FL-
339 PM CDT SUN APR 22 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHWESTERN WALTON COUNTY...
    
At 339 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Santa Rosa Beach, moving northeast 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 Walton County, including the following locations...
Villa Tasso and Portland.

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 3055 8619 3053 8616 3046 8619 3050 8620
      3047 8624 3043 8625 3041 8622 3040 8624
      3042 8627 3048 8624 3049 8626 3047 8630
      3040 8630 3039 8627 3038 8631 3039 8633
      3047 8631 3046 8639 3052 8639
TIME...MOT...LOC 2039Z 214DEG 19KT 3041 8632 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

42-DVD
837 
WWUS52 KTAE 222048
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
348 PM CDT SUN APR 22 2018

FLC131-222115-
/O.CON.KTAE.TO.W.0014.000000T0000Z-180422T2115Z/
Walton FL-
348 PM CDT SUN APR 22 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR WEST
CENTRAL WALTON COUNTY...
    
At 348 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Santa Rosa Beach, moving northeast 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...
Eglin Air Force Base and Villa Tasso. 

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 3055 8622 3054 8620 3047 8624 3048 8624
      3049 8626 3047 8630 3046 8631 3047 8631
      3046 8639 3052 8639
TIME...MOT...LOC 2048Z 210DEG 19KT 3046 8630 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

42-DVD
225 
WWUS52 KTAE 222056
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
356 PM CDT SUN APR 22 2018

FLC131-222105-
/O.CAN.KTAE.TO.W.0014.000000T0000Z-180422T2115Z/
Walton FL-
356 PM CDT SUN APR 22 2018

...THE TORNADO WARNING FOR WEST CENTRAL WALTON COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM CDT for the Panhandle
of Florida.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tallahassee.

LAT...LON 3055 8622 3054 8620 3047 8624 3048 8624
      3049 8626 3047 8630 3046 8631 3047 8631
      3046 8639 3052 8639
TIME...MOT...LOC 2054Z 217DEG 20KT 3050 8627 

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 22, 2:51 AM CDTRip Current StatementTAEBay, Franklin, Gulf, Walton20 hr
Apr 22, 2:21 PM CDTSpecial Marine WarningTAE54 min
Apr 22, 2:52 PM CDTSpecial Marine WarningTAE48 min
Apr 22, 3:06 PM CDTSpecial Marine WarningTAE114 min
Apr 22, 4:06 PM CDTSpecial Marine WarningTAE114 min
Apr 22, 4:11 PM CDTSpecial Marine WarningTAE110 min
Apr 22, 4:51 PM CDTSpecial Marine WarningTAE69 min
Apr 22, 5:27 PM CDTSpecial Weather StatementTAEMadison48 min
Apr 22, 5:59 PM CDTSpecial Marine WarningTAE2 hr

Nearby

Tornado Warnings in Florida, 2018Every tornado warning in 2018Tornadoes in 2018

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.