Alert archive / Florida / Tornado Warnings in 2018

Tornado Warning 30, NWS Tallahassee, FL

November 12, 20184 counties in Florida

NWS Tallahassee, FL issued this tornado warning at Nov 12, 2018, 4:50 PM CST for 4 counties in Florida. It was in force for 25 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
Nov 12, 2018, 4:50 PM CST (22:50 UTC)
Expired
Nov 12, 2018, 5:15 PM CST
In force
25 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Holmes County, FL, Jackson County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 15 km from the middle of the area, began a volume at 22:52 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
Nov 12, 11:46 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.8 hours before the alert went out and 143 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 2018-11-12Temperature 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 2018-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 395 square meters per square second.19395878Sfc1 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
665 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
395 m²/s²
0-3 km storm-relative helicity
411 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

770 
WFUS52 KTAE 122250
TORTAE
FLC059-063-131-133-122315-
/O.NEW.KTAE.TO.W.0030.181112T2250Z-181112T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
450 PM CST MON NOV 12 2018

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  West central Jackson County in the Panhandle of Florida...
  East central Walton County in the Panhandle of Florida...
  Southeastern Holmes County in the Panhandle of Florida...
  Washington County in the Panhandle of Florida...

* Until 515 PM CST.
    
* At 450 PM CST, a severe thunderstorm capable of producing a tornado
  was located 7 miles southwest of Vernon, moving northeast at 50
  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...
  Vernon around 500 PM CST.
  Chipley around 515 PM CST.

Other locations impacted by this tornadic thunderstorm include
Richter Crossroads, Whitehead Crossroads, Bradford, Cottondale,
Alford, Holmes Valley, Millers Ferry, Smyrna, Bahoma and Sylvania.

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.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3095 8551 3075 8530 3044 8579 3044 8581
      3052 8589 3053 8589 3054 8588 3055 8588
      3056 8589 3058 8589 3059 8591 3060 8590
TIME...MOT...LOC 2250Z 228DEG 43KT 3056 8581 

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

$$

33-LF
1 follow-up statement
022 
WWUS52 KTAE 122304
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
504 PM CST MON NOV 12 2018

FLC131-122314-
/O.CAN.KTAE.TO.W.0030.000000T0000Z-181112T2315Z/
Walton FL-
504 PM CST MON NOV 12 2018

...THE TORNADO WARNING FOR EAST CENTRAL WALTON COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM CST for the Panhandle
of Florida.

LAT...LON 3095 8551 3075 8530 3065 8546 3082 8565
TIME...MOT...LOC 2304Z 228DEG 43KT 3067 8566 

$$

FLC059-063-133-122315-
/O.CON.KTAE.TO.W.0030.000000T0000Z-181112T2315Z/
Jackson FL-Holmes FL-Washington FL-
504 PM CST MON NOV 12 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CST FOR WEST
CENTRAL JACKSON...EAST CENTRAL HOLMES AND NORTHEASTERN WASHINGTON
COUNTIES...
    
At 504 PM CST, a severe thunderstorm capable of producing a tornado
was located near Vernon, moving northeast at 50 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...
  Chipley around 515 PM CST.

Other locations impacted by this tornadic thunderstorm include Steele
City, Richter Crossroads, Chipley Municipal Airport, Kynesville,
Holmes County Airport, Cottondale Airport, Cottondale, Alford and
Bahoma.

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.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3095 8551 3075 8530 3065 8546 3082 8565
TIME...MOT...LOC 2304Z 228DEG 43KT 3067 8566 

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

$$

33-LF

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 11, 7:44 PM CSTSmall Craft AdvisoryTAE19 hr
Nov 12, 8:19 AM CSTSpecial Marine WarningTAE56 min
Nov 12, 9:13 AM CSTSpecial Marine WarningTAE62 min
Nov 12, 10:11 AM CSTSpecial Marine WarningTAE2 hr
Nov 12, 10:14 AM CSTSpecial Marine WarningTAE91 min
Nov 12, 11:39 AM CSTSpecial Marine WarningTAE81 min
Nov 12, 12:15 PM CSTSpecial Marine WarningTAE72 min
Nov 12, 12:33 PM CSTSpecial Weather StatementTAEBay57 min
Nov 12, 12:55 PM CSTSpecial Marine WarningTAE48 min
Nov 12, 12:57 PM CSTSpecial Marine WarningTAE106 min
Nov 12, 1:16 PM CSTSevere Thunderstorm WarningTAEBay, Gulf26 min
Nov 12, 2:16 PM CSTSevere Thunderstorm WarningTAEBay27 min
Nov 12, 3:12 PM CSTSpecial Marine WarningTAE2 hr
Nov 12, 3:37 PM CSTSpecial Weather StatementTAEWalton38 min
Nov 12, 4:19 PM CSTSpecial Weather StatementTAEHolmes, Walton41 min
Nov 12, 5:15 PM CSTSpecial Marine WarningTAE90 min
Nov 12, 5:15 PM CSTTornado WarningTAEJackson16 min

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.