Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 1, NWS Tampa Bay, FL

January 7, 2017Citrus County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jan 7, 2017, 1:48 AM EST for Citrus County, Florida. It was in force for 27 min. 2 reports 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: Jan 7, 2017, 1:48 AM EST (06:48 UTC)
Expired: Jan 7, 2017, 2:15 AM EST
In force: 27 min
Issued by: NWS Tampa Bay, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Citrus County, FL

The radar

The Tampa radar (KTBW), 144 km from the middle of the area, began a volume at 06:47 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
Jan 7, 1:53 AM EST	MARINE TSTM WIND 51	3 W Crystal River, FL	PEAK WIND GUST AT MARINE SCIENCE STATION OF 51MPH.
Jan 7, 1:57 AM EST	TSTM WND DMG	2 Ese Crystal River, FL	EMERGENCY MANAGER REPORTED THAT A TREE FELL ACROSS THE ROAD. TIME ESTIMATED BY RADAR.

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
Jan 7, 12:33 AM EST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 6.8 hours before the alert went out and 144 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: 15 J/kg
Mixed-layer CIN: -200 J/kg
Mixed-layer LCL: 1455 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

839 
WFUS52 KTBW 070648
TORTBW
FLC017-070715-
/O.NEW.KTBW.TO.W.0001.170107T0648Z-170107T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tampa Bay Area Ruskin FL
148 AM EST SAT JAN 7 2017

The National Weather Service in Ruskin has issued a

* Tornado Warning for...
  Northern Citrus County in west central Florida...

* Until 215 AM EST
    
* At 148 AM EST, a severe thunderstorm capable of producing a tornado
  was located 7 miles northwest of Crystal River Airport, or 11 miles
  northwest of Homosassa Springs, moving east at 30 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...
  Beverly Hills, Homosassa Springs, Crystal River Airport, Black
  Diamond, Inverness Highlands North, Hernando, Inglis, Stokes Ferry,
  Pine Ridge, Citronelle, Brent Wood, River Lakes Manor, Citrus
  Hills, Crystal Oaks, Lecanto, Crystal Manor, Citrus Springs and
  Arbor Lakes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to 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.

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

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

&&

LAT...LON 2899 8278 2903 8268 2901 8261 2903 8260
      2903 8258 2904 8254 2904 8251 2905 8247
      2901 8242 2902 8240 2898 8232 2895 8230
      2889 8227 2880 8273
TIME...MOT...LOC 0648Z 252DEG 27KT 2893 8267 

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

$$

MCKAUGHAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 6, 11:36 PM EST	Special Marine Warning	TBW		39 min
Jan 7, 12:14 AM EST	Special Marine Warning	TBW		46 min
Jan 7, 12:34 AM EST	Special Marine Warning	TBW		56 min
Jan 7, 1:30 AM EST	Special Marine Warning	TBW		60 min
Jan 7, 2:17 AM EST	Severe Thunderstorm Warning	TBW	Citrus, Sumter	28 min
Jan 7, 2:22 AM EST	Special Marine Warning	TBW		53 min
Jan 7, 3:13 AM EST	Special Marine Warning	TBW		62 min
Jan 7, 3:24 AM EST	Special Weather Statement	TBW	Manatee	51 min
Jan 7, 4:07 AM EST	Freeze Watch	TBW	Citrus, Hernando, Levy	5 hr
Jan 7, 4:11 AM EST	Gale Warning	TBW		30 hr
Jan 7, 4:48 AM EST	Special Weather Statement	TBW	Manatee	27 min
Jan 7, 5:14 AM EST	Special Weather Statement	TBW	Sumter	31 min
Jan 7, 5:26 AM EST	Special Weather Statement	TBW	Hardee	34 min
Jan 7, 8:50 AM EST	Freeze Warning	TBW	Citrus, Levy	24 hr
Jan 7, 8:50 AM EST	Wind Chill Advisory	TBW	Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands and 9 more	25 hr
Jan 7, 9:37 AM EST	Special Weather Statement	TBW	Lee	23 min
Jan 7, 10:22 AM EST	Special Weather Statement	TBW	Lee	38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.