Major Hailstorm and Anti-Cyclonic Tornado Hits Woodward and Northwestern Oklahoma (4/10/2012)


Supercell thunderstorms developed over northwest Oklahoma during the mid-afternoon hours (2-4 pm CDT) of the 9th and moved southeast through the evening hours. Hail up to softball-size was reported over many areas of Woodward county. In addition, several weak tornadoes occurred near and south of Woodward, OK. One of these tornadoes were anti-cyclonic, meaning the tornado was rotating clockwise.

The tornadoes were brief in duration, although one did produce some damage east of Sharon, OK. The more extensive damage occurred with the very large hail that ravaged most of the city of Woodward. The hail had shattered numerous automobile and building windows, some of which caused injuries. Two injuries occurred as hail busted through car windows. Another injury occurred to a girl that was closing her storm shelter. She broke her wrist after being struck by tennis ball-size hail. The Mesonet site located 2 miles south-southwest of Woodward recorded an interesting drop in pressure as the supercell tornado moved nearby. The site also reported very strong winds that were being drawn into the storm, with speeds close to 50 mph.

The storms moved southeast with large hail becoming primary threat as they moved over Clinton, OK. Other thunderstorms developed over the Texas panhandle and moved into far southwest Oklahoma and adjacent portions of western north Texas. These storms moved over mainly rural areas of Hardeman and Foard Counties in Texas and Harmon County in Oklahoma , with large hail likely occurring and wind gusts over 60 mph at the Goodlett mesonet site.

Below are the storm reports that were received during and after the event.

Storm Reports

Here is the summary of the storm reports that we have received so far from this event. All times are in central daylight time. Storm reports courtesy of NWS Norman.

0337 PM: HAIL, 4 MI NNW OF SELMAN, E0.88 INCH HARPER OK, BY TRAINED SPOTTER

0416 PM: HAIL, 7 MI SE OF SELMAN, E1.75 INCH HARPER OK, BY TRAINED SPOTTER

0426 PM: HAIL 1 MI S OF FORT SUPPLY, E0.88 INCH WOODWARD OK, BY TRAINED SPOTTER

0441 PM: HAIL, 10 MI SE OF SELMAN, E2.75 INCH HARPER OK, BY TRAINED SPOTTER

0450 PM: HAIL, 6 MI NW IF WOODWARD, E2.25 INCH, WOODWARD OK, BY PUBLIC

0452 PM: HAIL, 5 MI N OF WOODWARD, E2.50 INCH, WOODWARD OK, BY TRAINED SPOTTER

0454 PM: HAIL, 2 MI N OF WOODWARD, E2.50 INCH WOODWARD OK BY TRAINED SPOTTER

0456 PM: HAIL, 1 MI N OF WOODWARD 36.45N 99.39W 04/09/2012 E2.75 INCH WOODWARD OK BY TRAINED SPOTTER

0500 PM: HAIL, 2 MI N OF WOODWARD, E4.25 INCH WOODWARD OK BY TRAINED SPOTTER

0502 PM: HAIL, 1 MI N OF WOODWARD, E2.50 INCH WOODWARD OK, BY EMERGENCY MNGR

0505 PM: HAIL, 1 MI NE OF WOODWARD, E2.50 INCH WOODWARD OK, BY CO-OP OBSERVER

0521 PM: HAIL, WOODWARD, E4.25 INCH WOODWARD OK, BY EMERGENCY MNGR. *** 3 INJ *** THE HAIL BROKE MULTIPLE WINDOWS AND DENTED SEVERAL CARS.

0524 PM: TORNADO, 3 MI SSW OF WOODWARD, WOODWARD OK, BY STORM CHASER. THE TORNADO LASTED FOR LESS THAN A MINUTE.

0549 PM: TORNADO, 3 MI N OF SHARON, WOODWARD OK, BY STORM CHASER. A BRIEF TORNADO OCCURRED NORTH OF SHARON AND MOVED SOUTHEAST. NO DAMAGE OCCURRED WITH THE TORNADO.

0552 PM: TORNADO, 3 MI E OF SHARON, WOODWARD OK, BY EMERGENCY MNGR. MULTIPLE STORM CHASERS, LOCAL BROADCAST MEDIA, AND THE WOODWARD COUNTY EMERGENCY MANAGEMENT REPORTED A TORNADO EAST OF SHARON. THE TORNADO DEVELOPED TO THE EAST-NORTHEAST OF SHARON AND MOVED SOUTHEAST, DESTROYING A 20 BY 40 FOOT METAL SHED AND DETACHING A ROOF FROM A HOME. THE TORNADO LASTED FOR 3 TO 4 MINUTES. THE TIME AND LOCATION ARE APPROXIMATE BASED ON RADAR.

0622 PM: HAIL, 2 MI W OF WOODWARD, E4.00 INCH WOODWARD OK, BY TRAINED SPOTTER.

0638 PM: HAIL, 5 MI W OF SHARON, E3.50 INCH, WOODWARD OK, BY TRAINED SPOTTER.

0701 PM: HAIL, 1 MI W OF VICI, E2.50 INCH DEWEY OK, BY STORM CHASER. THE BACK WINDSHIELD OF A CAR WAS SHATTERED.

0705 PM: HAIL, VICI, E2.00, DEWEY OK, BY STORM CHASER.

0800 PM: TSTM WND GST, 3 MI W OF GOODLETT, TX. M62.00 MPH, HARDEMAN TX, BY MESONET

0900 PM: HAIL: 2 MI E OF CLINTON, E1.00 INCH, CUSTER OK, BY TRAINED SPOTTER. REPORTED AT THE LUCKY STAR CASINO.

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