Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 66, NWS Tallahassee, FL

December 20, 2012Bay County, Gulf County, Florida

NWS Tallahassee, FL issued this tornado warning at Dec 20, 2012, 1:16 PM CST for Bay County, Gulf County, Florida. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Dec 20, 2012, 1:16 PM CST (19:16 UTC)
Expired: Dec 20, 2012, 1:45 PM CST
In force: 29 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Bay County, FL, Gulf County, FL

The radar

The Eglin Afb radar (KEVX), 70 km from the middle of the area, began a volume at 19:18 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.

What was reported inside it

Time	Report	Where	Remark
Dec 20, 1:25 PM CST	FUNNEL CLOUD	5 Se Tyndall Afb, FL	FUNNEL CLOUD SPOTTED NEAR EAST BAY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 20, 9:19 AM CST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.3 hours before the alert went out and 121 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: 2063 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

861 
WFUS52 KTAE 201916
TORTAE
FLC005-045-201945-
/O.NEW.KTAE.TO.W.0066.121220T1916Z-121220T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
116 PM CST THU DEC 20 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BAY COUNTY IN THE PANHANDLE OF FLORIDA...
  NORTHWESTERN GULF COUNTY IN THE PANHANDLE OF FLORIDA...

* UNTIL 145 PM CST

* AT 113 PM CST...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE 10 MILES SOUTHWEST OF ALLANTON...OR 7
  MILES SOUTH OF TYNDALL AFB...MOVING NORTHEAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WETAPPO

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WATERSPOUTS MAY CAUSE LOCALIZED DAMAGE AS THEY MOVE ONSHORE. IF YOU
ARE IN THE PATH OF THIS WATERSPOUT...PLEASE GO TO A SAFE PLACE
IMMEDIATELY.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY.

&&

LAT...LON 3002 8558 3003 8558 3007 8552 3006 8551
      3008 8551 3009 8550 3018 8536 3007 8526
      2997 8553
TIME...MOT...LOC 1916Z 238DEG 35KT 2999 8558

$$

22-BARRY

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 20, 2:50 AM CST	Freeze Watch	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	24 hr
Dec 20, 3:31 AM CST	Gale Warning	TAE		26 hr
Dec 20, 3:39 AM CST	Rip Current Statement	TAE	Bay, Gulf, Walton	38 hr
Dec 20, 8:20 AM CST	Dense Fog Advisory	TAE	Gadsden, Leon, Wakulla	100 min
Dec 20, 8:30 AM CST	Marine Dense Fog Advisory	TAE		4 hr
Dec 20, 10:50 AM CST	Severe Thunderstorm Warning	TAE	Holmes, Walton	40 min
Dec 20, 10:51 AM CST	Special Marine Warning	TAE		114 min
Dec 20, 11:26 AM CST	Severe Thunderstorm Warning	TAE	Holmes, Walton	64 min
Dec 20, 11:45 AM CST	Severe Thunderstorm Warning	TAE	Bay, Holmes, Walton, Washington	45 min
Dec 20, 12:25 PM CST	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Holmes, Jackson, Washington	50 min
Dec 20, 12:41 PM CST	Special Marine Warning	TAE		3 hr
Dec 20, 2:55 PM CST	Special Marine Warning	TAE		3 hr
Dec 20, 3:28 PM CST	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Madison	47 min
Dec 20, 4:22 PM CST	Tornado Warning	TAE	Taylor	23 min
Dec 20, 4:47 PM CST	Severe Thunderstorm Warning	TAE	Madison	28 min
Dec 20, 5:48 PM CST	Special Marine Warning	TAE		42 min

Nearby

Tornado Warnings in Florida, 2012 Every tornado warning in 2012 Tornadoes in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.