Hail(1

Hail(1.25) 0 0 26 2 WNW Mountain Park 1938CST

Kiowa County

Hail(1.75) 0 0 29 Cheyenne 1503CST

Roger Mills County

Hail(1.50) 0 0 29 Cheyenne 1507CST

Roger Mills County

Hail(1.00) 0 0 29 Cheyenne 1507CST

Roger Mills County

Hail(1.75) 0 0 29 7 NNE Cheyenne 1520CST

Roger Mills County

Hail(1.00) 0 0 29 1 E Angora 1545CST

Roger Mills County

Hail(1.00) 0 0 29 11 E Roll 1545CST

Roger Mills County

Hail(1.75) 0 0 29 Freedom 1546CST

Woods County

Dewey County

Hail(1.00) 0 0 29 Vici 1557CST

Thunderstorm Wind (EG61) 0 0 29 2 S Leedey 1612CST

Dewey County

Hail(0.75) 0 0 29 Mutual 1612CST

Woodward County

Hail(0.75) 0 0 29 6 W Arapaho 1630CST

Custer County

Hail(1.00) 0 0 29 4 S Taloga 1639CST

Dewey County

Hail(0.88) 0 0 29 4 SSW Butler 1644CST

Custer County

Hail(1.75) 0 0 29 8 S Taloga 1650CST

Dewey County

Hail(2.50) 0 0 29 4 N Putnam 1653CST

Dewey County

Hail(2.75) 0 0 29 8 S Taloga 1655CST

Dewey County

Hail(2.00) 0 0 29 5 W Custer City 1709CST

Custer County

Hail(0.88) 0 0 29 1 E Hucmac 1715CST

Dewey County

Hail(1.75) 0 0 29 6 NW Custer City 1716CST

Custer County

Hail(2.50) 0 0 29 Thomas 1723CST

Custer County

Hail(4.75) 0 0 29 Custer City 1725CST

Custer County

Hail(2.50) 0 0 29 5 W Thomas 1727CST

Custer County

Several windshields and back windows of vehicles were damaged. A few roofs to homes were also damaged.

Hail(2.50) 50K 0 0 29 Thomas 1728CST

Custer County

The tornado began 4.5 miles SW of Thomas, and touched down intermittently as it moved ESE. The tornado was wrapped in rain for much of its existence. It appeared to weaken/dissipate as it crossed Highway 54, 6 to 7 miles S of Thomas, where several power poles were snapped.

Tornado (F0) 1K 0 200 6 0 29

4.5 SW Thomas to 6.5 SSE Thomas

1729CST

1740CST

Custer County

Hail(4.25) 0 0 29 3 E Custer City 1730CST

Custer County

Hail(1.00) 0 0 29 7 SW Watonga 1748CST

Blaine County

Hail(1.75) 0 0 29 10 WNW Geary 1751CST

Blaine County

The second tornado of this storm began 3 miles NE of American Horse Lake, or 9 miles WNW of Geary. This tornado also was obscured by rain for much of its life cycle, but was documented at close range by the Doppler on Wheels (DOW). The center of the tornadic circulation initially moved ESE, approaching American Horse Road around 1824 (all times CST), 6-7 miles WNW of Geary, then turned to the ENE. Damage occurred over a wide swath to the right of the center of circulation, and was the combined result of the tornado and damaging winds from the very strong mesocyclone within which it was embedded. A peak instantaneous wind gust was measured by the DOW at 81 m/s (157 knots, or 181 mph) at a height of 6.5 meters AGL in the mesocyclone circulation just north of Geary at 1836. Four miles NW of Geary, several smaller-scale vortices developed around the initial circulation center - one of which became the dominant circulation and formed about a half a mile south of the original center at 1832. Due to continuity of the parent mesocyclone circulation and the continuous damage path, these circulation centers are considered to be sub-vortices within the same tornado, and not separate tornadoes. The newly-formed circulation center moved slightly south of due east, and crossed US270/281 at 1837 CST, 2 miles NNW of Geary. The tornado crossed into Canadian County at 1838 CST, 11.8 WNW of Calumet. The tornado caused widespread tree damage with trees downed or uprooted across the area. Several barns were also damaged or destroyed in Blaine county. A house sustained some roof damage and power lines were downed in the area. A stock trailer was found rolled and farm machinery damaged. An old church one mile north of Geary also lost its roof.

Tornado (F2) 1.5M 0 1320 9.1 0 29

9 WNW Geary to 2.5 N Geary

1817CST

1838CST

Hail(1.00) 0 0 29 Canton 1820CST

Blaine County

Hail(1.25) 0 0 29 11 WNW Calumet 1830CST

Canadian County

The tornado, 2.5 N of Geary in Blaine county, crossed into Canadian County at 1838 CST. Damage remained confined to the right side of the track of the circulation center. The tornado and the parent mesocyclone then turned to the NE, inflicting F1 and low-F2 damage to several rural homes northeast of Geary. Seven miles NE of Geary, the center turned back to the E at 1852, paralleling 220th Street (EW91 Road) for about 2 miles. It then turned to the NE at 1902 and eventually to the N by 1908. The tornado was wrapped in rain during its entire latter stages, and therefore was not visible. Doppler on Wheels (DOW) data indicate that the tornadic circulation crossed into Kingfisher County 11 miles west of Okarche.

One farmstead, approximately 5-6 miles northeast of Geary, received heavy damage with the 100 year old farmhouse sustaining substantial damage and several outbuildings and barns destroyed.

Tornado (F2) 1M 0 1760 9.8 0 29

11.8 WNW Calumet to 9.1 NNW Calumet

1838CST

1911CST

Canadian County

Hail(0.75) 0 0 29 8 WNW Okarche 1845CST

Kingfisher County

Hail(1.25) 0 0 29 11 WNW Calumet 1900CST

Canadian County

This anti-cyclonic tornado formed from a new lowering that first developed WNW of Calumet. Unlike the earlier tornadoes, this one was not wrapped in rain and was documented visually by numerous spotters as well as the Doppler On Wheels (DOW). The tornadic circulation first formed at 1902 about 2 miles NNW of Calumet, based on DOW data, but spotters observed only a funnel cloud until debris was observed at 1904, 2 miles north of Calumet. The tornado tracked generally east near EW95 Road, with occasional jogs to the NE and SE. It ended 4-5 miles NE of Calumet at 1914 CST. This tornado was visible mainly as a debris cloud on the ground; the condensation funnel reached the ground only briefly at 1904 and again at 1910, otherwise it either remained aloft or was non-existent. The tornado had multiple vortices briefly. Two permanent homes received damage. One home towards the beginning of the tornado sustained minor roof damage with shingles blown off. Another home had an enclosure, that was built over the pool, destroyed. A nearby manufactured home also showed damage to its siding, roof, and windows. Damage was estimated at low end to middle F1.

Tornado (F1) 25K 0 50 4.5 0 29

2 N Calumet to 4.5 ENE Calumet

1904CST

1914CST

Canadian County

Hail(1.75) 0 0 29 8 WNW Okarche 1905CST

Kingfisher County

Hail(2.75) 0 0 29 1 S Okarche 1910CST

Canadian County

Doppler on Wheels (DOW) data indicate that the tornadic circulation, 9.1 NNW of Calumet in Blaine county, crossed into

Kingfisher County 11 miles west of Okarche at 1911 CST. The forward speed slowed as the parent mesocyclone occluded. The tornado then turned west, then south, and finally dissipated at 1915 CST, two miles east of the Blaine/Canadian/Kingfisher county junction. No damage was reported with this portion of the tornado.

Tornado (F0) 0 100 0.8 0 29

11.2 W Okarche

11 W Okarche to 1911CST

1915CST

Kingfisher County

This tornado, also anti-cyclonic, formed about 1 mile NW of the previous tornado (4.5 ENE Calumet) shortly after the latter

dissipated. It touched down intermittently as it moved ESE, lifting 4 miles NW of Concho at 1920 after forming a very brief,

needle-like condensation funnel seen by spotters and caught on video by local media (KWTV Ch. 9). Damage was reported by spotters at a location 3 miles north and 4 miles east of Calumet.

Tornado (F1) 10K 0 20 2 0 29

4 NNE Calumet to 3.5 WNW Concho

1914CST

1920CST

Canadian County

Hail broke the windshields of the Okarche Police Department cruisers. The large hail also heavily damaged school buildings

breaking 61 windows and 26 skylights. The school roof and 4 vehicles were determined to be totaled. Several other homes and vehicles were also damaged.

Hail(2.75) 500K 0 0 29 Okarche 1921CST

Canadian County

This brief tornado was observed at close range by spotters 2 miles NW of Concho. It likely originated from the same parent

circulation that produced the previous two anti-cyclonic tornadoes near Calumet and WNW of Concho, but was likely a separate event. No damage was reported.

Tornado (F0) 0 20 0.1 0 29 2 NW Concho 1922CST

Canadian County

Most of the damage in and around Piedmont appeared to be the result of strong straight-line winds - both inflow into the storm and strong winds within the mesocyclone. But local media (KOCO Ch. 5) showed video of and storm chasers observed a condensation funnel about 5 to 6 miles W of Piedmont. The tornado damaged a barn and downed several electric poles before crossing Northwest Highway near Banner Road. The tornado damaged several more barns before lifting 5 miles west of Piedmont. Tornado (F1) 150K 0 50 1 0 29

6.5 W Piedmont to 5.5 W Piedmont

1945CST

1947CST

Canadian County

Hail(2.75) 0 0 29 5 SSW Cashion 1946CST

Kingfisher County