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A long-lived supercell thunderstorm slowly tracked south to southwestward across Beaver County, OK into Hemphill County, TX.  Preliminary information suggests this storm produced up to six weak tornadoes.  Storm spotters observed and photographed several of these brief tornadoes.  Others produced minor damage, and were confirmed through NWS surveys.  Several of the tornadoes were likely obscured by heavy rain and heavy, and resulted in intermittent damage paths.  During the late evening, additional severe storms developed along an advancing cold front.  These storms produced damaging straight line winds in the Pampa, TX area.

 

Slapout, OK Survey
RATING EF-0 (80 mph winds)
BEGIN 9 miles W of Slapout
END 9 miles W of Slapout
LENGTH 2 miles
WIDTH 100 yards
TIME 5:42 PM - 5:50 PM

 

Minor damage to an old barn as well as minor roof damage to a manufactured home.  A few outbuildings were damaged.  Tornado drifted south across US Highway 412.  This is a preliminary report and is subject to revision based on any new or additional information.

 

Slapout, OK Survey
RATING EF-1 (90 mph winds)
BEGIN 14 miles W of Slapout
END 18 miles W of Slapout
LENGTH 4 miles
WIDTH 150 yards
TIME 6:03 PM - 6:13 PM

 

At least two dozen power poles were snapped with damage to a barn with the east wall and roof missing.  A center pivot irrigation system was damaged.  Additional roof and wall damage occurred to a barn and house.  This is a preliminary report and is subject to revision based on any new or additional information.
 
Elmwood, OK Survey
RATING EF-0 (75 mph winds)
BEGIN 7 miles SE of Elmwood
END 7 miles SE of Elmwood
LENGTH 0.6 miles
WIDTH 50 yards
TIME 6:31 PM - 6:32 PM

 

The tops of trees were snapped and a metal garage was completely destroyed.  This is a preliminary report and is subject to revision based on any new or additional information.
 
Darrouzett, TX Survey
RATING EF-0 (70 mph winds)
BEGIN 5 miles WSW of Darrouzett
END 6 miles SW of Darrouzett
LENGTH 2 miles
WIDTH 50 yards
TIME 6:57 PM - 7:03 PM

 

Storm chasers reported this tornado and documented with images.  A center pivot irrigation system was also flipped and damaged.  This is a preliminary report and is subject to revision based on any new or additional information.
 
Lipscomb, TX Survey
RATING EF-0 (65 mph winds)
BEGIN 6 miles NNW of Lipscomb
END 5 miles NNW of Lipscomb
LENGTH 1 mile
WIDTH 75 yards
TIME 7:22 PM - 7:23 PM

 

Storm chasers reported a brief tornado touchdown and documented with images.  This is a preliminary report and is subject to revision based on any new or additional information.
 
Canadian, TX Survey
RATING EF-1 (85-90 mph winds)
BEGIN 9.5 miles WNW of Canadian
END 7 miles WNW of Canadian
LENGTH 1.8 miles
WIDTH 100 yards
TIME 9:50 PM - 9:55 PM

 

This tornado began in extreme eastern Roberts County where it produced light damage at a ranch house.  A barn was partially unroofed and numerous trees were damaged.  The tornado then drifted east across the Hemphill County line, generally along and just south of Red Deer Road.  It damage a second homestead approximately 7 miles west northwest of Canadian.  A metal and wood constructed barn was destroyed with all roof panels removed and most walls collapsed.  Wind estimates of 85 to 90 mph were based on damage to this particular structure.  Additional tree damage also occurred at this location.  Wind blown hail subsequently broke windows at both homes.  This is a preliminary report and is subject to revision based on any new or additional information.
 
Pampa, TX Straightline Wind Survey
WIND SPEEDS Up to 100 mph
BEGIN 4 miles N of Pampa
END 4 miles N of Pampa
TIME 11:11 PM - 11:40 PM

 

Widespread straightline wind damage across central and east Pampa with a measured wind gust of 93 mph on the Texas Tech Mesonet station 2 miles east of Pampa.  Numerous trees and power poles were snapped.  Two trailers were rolled where two injuiries occurred.  Significant roof damage occurred to several structures across east and southeast Pampa.  This is a preliminary report and is subject to revision based on any new or additional information.