Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 80, NWS Tallahassee, FL

October 8, 2017Jefferson County, Taylor County, Wakulla County, Florida

NWS Tallahassee, FL issued this tornado warning at Oct 8, 2017, 12:43 AM EDT for Jefferson County, Taylor County, Wakulla County, Florida. It was in force for 19 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: Oct 8, 2017, 12:43 AM EDT (04:43 UTC)
Expired: Oct 8, 2017, 1:02 AM EDT
In force: 19 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Jefferson County, FL, Taylor County, FL, Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 46 km from the middle of the area, began a volume at 04:46 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 00:00Z, 4.7 hours before the alert went out and 44 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: 738 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1032 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted.

097 
WFUS52 KTAE 080443
TORTAE
FLC065-123-129-080515-
/O.NEW.KTAE.TO.W.0080.171008T0443Z-171008T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tallahassee FL
1243 AM EDT SUN OCT 8 2017

The National Weather Service in Tallahassee has issued a

* Tornado Warning for...
  Northeastern Wakulla County in Big Bend of Florida...
  Southwestern Jefferson County in Big Bend of Florida...
  Northwestern Taylor County in Big Bend of Florida...

* Until 115 AM EDT
    
* At 1243 AM EDT, a severe thunderstorm capable of producing a
  tornado was located 18 miles southeast of St. Marks, moving north
  at 35 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
  northeastern Wakulla...southwestern Jefferson and northwestern
  Taylor Counties, including the following locations: Goose Pasture
  and Hells Half Acre.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3002 8404 3025 8419 3029 8390 3000 8390
      2999 8397
TIME...MOT...LOC 0443Z 162DEG 29KT 3001 8395 

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

$$

30-PULLIN

2 follow-up statements

932 
WWUS52 KTAE 080453
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
1253 AM EDT SUN OCT 8 2017

FLC065-123-129-080515-
/O.CON.KTAE.TO.W.0080.000000T0000Z-171008T0515Z/
Wakulla FL-Jefferson FL-Taylor FL-
1253 AM EDT SUN OCT 8 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM EDT FOR
NORTHEASTERN WAKULLA...SOUTHWESTERN JEFFERSON AND NORTHWESTERN TAYLOR
COUNTIES...
    
At 1251 AM EDT, a severe thunderstorm capable of producing a tornado 
is moving north at 35 mph onto the coast near the Jefferson and 
Taylor County line, 15 miles southeast of St. Marks.

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...
Woodville, Goose Pasture and Hells Half Acre. 

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3025 8419 3029 8390 3004 8391 3003 8405
TIME...MOT...LOC 0451Z 162DEG 29KT 3008 8397 

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

$$

30-PULLIN

682 
WWUS52 KTAE 080502
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
102 AM EDT SUN OCT 8 2017

FLC065-123-129-080511-
/O.CAN.KTAE.TO.W.0080.000000T0000Z-171008T0515Z/
Wakulla FL-Jefferson FL-Taylor FL-
102 AM EDT SUN OCT 8 2017

...THE TORNADO WARNING FOR NORTHEASTERN WAKULLA...SOUTHWESTERN
JEFFERSON AND NORTHWESTERN TAYLOR COUNTIES 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.

LAT...LON 3025 8419 3029 8390 3004 8391 3003 8405
TIME...MOT...LOC 0459Z 162DEG 29KT 3017 8400 

$$

30-PULLIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 7, 11:38 PM EDT	Special Marine Warning	TAE		52 min
Oct 8, 12:19 AM EDT	Special Weather Statement	TAE	Wakulla	41 min
Oct 8, 12:28 AM EDT	Special Marine Warning	TAE		32 min
Oct 8, 12:47 AM EDT	Special Marine Warning	TAE		28 min
Oct 8, 1:17 AM EDT	Special Marine Warning	TAE		43 min
Oct 8, 2:07 AM EDT	Special Marine Warning	TAE		23 min
Oct 8, 11:02 AM EDT	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	15 hr
Oct 8, 11:02 AM EDT	High Surf Advisory	TAE	Bay, Franklin, Gulf, Walton	15 hr
Oct 8, 11:03 AM EDT	Wind Advisory	TAE	Bay, Holmes, Walton, Washington	3 hr
Oct 8, 12:19 PM EDT	Special Marine Warning	TAE		56 min
Oct 8, 1:15 PM EDT	Special Weather Statement	TAE	Dixie, Lafayette	45 min
Oct 8, 2:46 PM EDT	Special Weather Statement	TAE	Leon	29 min

Nearby

Tornado Warnings in Florida, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.