An F1 tornado touched down near the Tulsa Airport, damaging a hotel, injuring 7 people, snapping trees, and turning over a sports utility vehicle, as well as damaging 75 other cars.
A tornado was reported near Hodgen.
Strong thunderstorms that moved across the state produced 83 mile per hour winds at the Mesonet site near Hollis.
Thunderstorms that developed in central Oklahoma spawned a pair of small tornadoes, one in Hughes County and one west of Ada. Hailstones in excess of 2 inches in diameter were reported at Wayne, Stratford and southwest of Ada.
A few days after high temperatures reached the 70s and 80s, temperatures dropped into the 30s and 40s after a surface high pressure system brought cold air to Oklahoma.
Unusually high temperatures, such as the 91 degrees recorded at Beaver and Slapout, contributed to dangerous fire conditions, as much of the state experienced significant precipitation deficits.
Severe storms formed along the dryline, spawning weak tornadoes in Latimer and Sequoyah counties. The F0 tornadoes caused mostly tree damage, but the one F1 severely damaged several metal barns. Teacup-size hail (3 inches) fell near Tulsa and 80 miles per hour winds damaged outbuildings near Kinta.
Light snow fell from the 6th through the 7th and freezing temperatures were recorded across the state.
Three weak tornadoes touched down in northeastern Oklahoma. The strongest caused F1 damage in Kansas, but only caused F0 damage while in Oklahoma. A large swath of blowing dust formed near the dryline.
The first tornado of the month, a brief, pencil-like twister, touched down for approximately two minutes in Tillman County and did not cause any damage.
Tornadoes were reported near Cheyenne (Roger Mills). Forty-six Oklahoma Mesonet sites recorded winds in excess of 50 miles per hour, including peak wind reports of 76 miles per hour at Boise City (Cimarron) and 74 miles per hour at Buffalo (Harper). Sites near Goodwell (Texas), Kenton (Cimarron), Camargo (Dewey), Cherokee (Alfalfa), Alva (Woods), Freedom (site in Woodward), Seiling (site also in Woodward), Butler (Custer) and Fort Cobb (Caddo) recorded peak winds of at least 60 miles per hour.
Thunderstorms produced isolated instances of large hail and wind gusts as great as 69 miles per hour at the Butler Mesonet site.
Heavy rain in eastern Oklahoma led to flooding along the Illinois River near Tahlequah (Cherokee), on the Blue River in Bryan County, and on smaller streams in LeFlore, Okmulgee, Atoka, Coal, Carter and Love counties.
The Bixby Mesonet site measured more than 3 inches of rain between 3 am and 7 am.
The Jay Mesonet site reported a low temperature of 17 degrees.
Over the three-day period from the 8th to the 10th, Boise City reported 6 inches of snow while Kenton and Regnier each reported over 4 inches.
Winds up to 70 mph, low humidity and warm temperatures contributed to the wildfires that destroyed 100 homes in Midwest City. The same storm system produced baseball-sized hail and six tornadoes in southeastern Oklahoma. One of the tornadoes was rated an EF-2 and injured four people in Big Cedar. McCurtain County was hit by an EF-3, but no injuries were reported.
Severe storms brought hail and damaging winds to northern Oklahoma, with softball sized hail in Kay County. The powerful storm brought 94 mph winds to Ponca City. The winds were determined to be rear-flank downdraft winds and not associated with a tornado. Thousands were left without power in Ponca City after the storm and heavily damaged structures and trees.
Muldrow experienced a microburst with 100 mile per hour winds, which damaged 477 homes. A weak tornado touched down in Choctaw County, while approximately an hour later, baseball-size hail (2.75 inches) was reported near Kinta.
An upper-level disturbance touched off thunderstorms in northwestern Oklahoma, producing little rain but spawning several small tornadoes and funnel clouds. The tornado reports caused some concern in the Woodward area, as they occurred on the 45th anniversary of the tornadoes that devastated that city in 1947.
Oklahoma saw its first significant tornadoes (EF-2 or stronger) since May 5, 2007. Two tornadoes touched down in Adair County in the early morning, destroying several mobile homes.
Severe storms formed, bringing golfball-size hail to Comanche County, as well as more hail and high winds to other areas across the state. Close to 2 inches of rain fell in southeastern Oklahoma.
Thunderstorm-associated winds late in the afternoon on the 10th, extending through early morning on the 11th, produced speeds of 50 miles per hour or greater at 54 Mesonet sites. The Stigler site registered a peak wind of 91 miles per hour. The sites near Marshall (Logan), the May Ranch (Woods) and Kingfisher (Kingfisher) each recorded peak winds greater than 70 miles per hour. One-and-three quarter inch hailstones were reported in Oklahoma County.
An F1 tornado touched down in Oklahoma City, damaging a trailer, metal barns, a barn roof, power lines and poles. Lightning struck a dryer vent in the roof of an Atoka home, sparking an electrical fire that consumed half of the house.
Tornadoes were reported during the pre-dawn hours near Harjo (Pottawatomie), Coalgate (Coal), and along the northeastern shore of Lake Texoma in Johnston County. One person was killed in the Coalgate storm.
A strong cold front entered Oklahoma and, according to media reports, delivered baseball-sized hail at Broken Arrow and Loco. Claremore reported 6.56 inches of rain for the 24-hour period ending the morning of the 12th.
Nearly 1 inch of snow fell on the grass in Gage before quickly melting.
A dryline that moved into western Oklahoma provided the focus for thunderstorm development. Nine tornadoes were produced by three different thunderstorms. Tornadoes were reported near Drummond, Carrier, Pond Creek, Jefferson, Kingfisher, Hennessey, and Ardmore.
While severe storms dropped golfball-size hail across central and southern Oklahoma in the morning, afternoon snow fell in the northwest, with close to 6 inches of snow in Boise City.
Tussy (Carter) reported 2.00 inches inches of rainfall.
Strong thunderstorms produced intense rainfall and street flooding in a number of areas in central and southeastern Oklahoma. Chandler reported over 6 inches of rain and Ada reported over 4 inches.
Thunderstorms along a cold front produced hail that covered the ground to a depth of 6 inches in Canadian County. The storms also generated a funnel cloud near Watonga and 75 mile per hour winds in Okarche.
A strong storm system approached from the west and southerly winds brought a surge of low-level moisture from the Gulf of Mexico. Thunderstorms fired in the afternoon and quickly became severe. 35 tornadoes touched down, mostly in eastern Oklahoma. A large EF-3 multiple vortex twister touched down near Tushka in Atoka County. The tornado killed two and injured many more while also causing significant damage. The tornado then continued through the south and southeast portions of Tushka. Three other EF-2 tornadoes were reported on the 14th. The remaining tornadoes were rated EF-0 or EF-1. A storm in Pushmataha County dropped softball size hail with wind gusts estimated at 85 mph.
Ardmore (Carter) reported 2.09 inches of rainfall and Tishomingo (Johnston) reported 2.00 inches. Tornadoes were reported near Watts (Adair) and near Stigler (Haskell). Several dwellings, including 3 frame homes, were damaged near Watts. Severe weather reports included 2-inch hailstones reported in Carter and Johnston counties and reports of one-and-three-quarter inch hailstones in Jefferson, Caddo, McCurtain, Marshall, Grady, and Kay counties.
Cherokee reported six inches of rain, which led to localized flooding.
Strong thunderstorms produced large hail and damaging winds. Reported hailstone diameters included: 3 inches south of Ponca City, 1.75 inches at Ninnekah, and 1.5 inches near Apache. Winds estimated at 80 miles per hour were reported at Cooperton.
Broken Bow (McCurtain) reported a two-day precipitation accumulation of 2.40 inches.
Grandfield and Walters reported a high temperature of 102 degrees.
Severe storms across western Oklahoma spawned seven possible tornadoes, damaging businesses and homes in Beckham, Jackson, Roger Mills, and Washita counties. The Sweetwater (Beckham) school and its Superintendent’s residence suffered damage from one of the twisters. The month’s only significant tornado, rated F2 on the Fujita Scale, tracked 20 miles through Osage, Washington, and Nowata counties before moving into Kansas. The town of Dewey (Washington) was the hardest struck, with damage to 40 homes, 2 businesses destroyed, and with estimates of over $1.5 million in damage.
The Miami site (Ottawa) recorded a 74-mile per hour peak wind.
A well-sustained, vigorous cold front and squall line raced though the state. The statewide impacts included 92 mile per hour winds and eight damaged aircraft at the Oklahoma City airport, baseball-sized hail in Lincoln and Bryan counties, and golfball-sized hail in Coal and Pontotoc counties.
Broken Bow (McCurtain) reported a two-day precipitation accumulation of 2.40 inches.
For the second time in this month, Grandfield reported a high of 102 degrees.
A supercell thunderstorm that moved through south-central Oklahoma maintained its structure well into northeastern Oklahoma. Tornadoes were reported south of Comanche and northwest of Joy. Other tornadoes were reported near Wewoka, Henryetta, Council Hill, Okay, and Peggs.
Softball-sized hail was observed in Jackson County, while baseball-sized hail near Eldorado was accompanied by 80 mile per hour winds.
A rare "heatburst" occurred in southwestern Oklahoma in the early morning, with the Erick Mesonet site reporting a non-thunderstorm related wind gust of 66 miles per hour.
Severe thunderstorms over the Oklahoma Panhandle produced large hail up to 2.75 inches and damaging winds up to 69 miles per hour.
A developing low pressure area caused gusts that exceeded 50 miles per hour in northwest Oklahoma.
Northern Oklahoma experienced high winds up to 70 miles per hour, a brief F0 tornado near Sapulpa, and hail up to 4.25 inches near Milfay in Creek County.
An upper-level disturbance supported severe thunderstorms along a western Oklahoma dryline. Roger Mills County reported golfball-sized hail and 60 mile per hour winds.
Two weak tornadoes (F0) touched down in Rogers and Wagoner counties, but no damage was reported. 4.25-inch hail fell over Tiawah in Rogers County.
A supercell pummeled central Oklahoma with hail up to baseball-size, leaving damages estimated near $100 million. This slow-moving storm buried parts of the Oklahoma City metro area in ice and low-lying areas had ice shelves 2 feet thick as the hailstones stuck together and became compacted. Several cars got stuck in hail and had to be towed or dug out. In Ellis County, two weak tornadoes touched down, but no damage was reported. One F1 touched down in Creek County, damaging a few homes, several outbuildings, and barns.
Several tornadoes were reported in Garfield County, including one that struck Carrier, causing considerable damage. Along with the tornadoes, many areas reported large hail.
Intense thunderstorms developed in southwestern and central Oklahoma, producing baseball-sized hail at Bethany and tennis ball-sized hail in parts of Murray, Stephens, and Payne counties. Tornadoes were reported at McAlester and in rural areas of Carter, Murray, and Noble counties. Allen reported 5.50 inches of precipitation, Ashland noted 5.25 inches, and several other stations reported between three and five inches of rainfall.
Thunderstorms triggered by a developing low pressure system spawned 50 mile per hour or greater winds at 23 Mesonet sites on the 22nd, including 61 miles per hour recorded near Newkirk (Kay). One-and-three-quarter inch hailstones were reported in Jackson and Cleveland counties.
Drenching rains resulted in rainfall amounts between 6-12 inches in east central Oklahoma, with surrounding areas receiving 2-6 inches. Walters in south central Oklahoma received over 5 inches in just a few hours while surrounding areas received less than an inch. There were 23 reports of flash flooding through the 25th. The Oklahoma Mesonet site at Westville led the totals at 12.1 inches.
Storms that fired along the dryline spawned a couple of weak tornadoes, as well as nearly tennis ball-size hail (2 inches) in Harper County.
Seven tornadoes touched down briefly in northern Oklahoma, most with no damage. One F1 hit northeast of Mazie, overturning a mobile home, snapping off large trees, and damaging outbuildings.
A large supercell sat over Stephens County for several hours, bringing flash flooding and baseball-sized hail. The Porter Mesonet site recorded 4.5 inches of rain and 3-4 feet of standing water was reported at the Duncan courthouse, along with flooding at the county jail.
Thunderstorms produced tornadoes north of Hartshore and throughout McCurtain County. Two-and-three-quarter inch hail was also produced by these storms at Golden.
Severe storms dropped hail up to 3 inches in Caddo County and more than 3 inches of rain in the northeast. One supercell produced two simultaneous F1 tornadoes near El Reno--one cyclonic and the other anti-cyclonic. The rare anti-cyclonic tornado caused $1.5 million in damage to the El Reno Regional Airport. A third F1 touched down near Randlett in Cotton County, causing only minor damage.
Several locations in the state experienced a late freeze. The Oilton and Jay Mesonet sites reported a high temperature of 28 degrees.
Just before 7 am in Sequoyah County, flood waters along Lee Creek carried away a camper trailer with three occupants. An 85 year old male and a 54 year old female were swept away to their deaths, while a 24 year old male survived by clinging to a tree.
A cold front that moved through the state on the 23rd and 24th was the catalyst for a significant weather event: the Tulsa-Catoosa tornadoes. The tornadoes destroyed over 100 residences in Catoosa, destroyed at least 70 percent of the businesses in Catoosa, damaged about 1500 homes in Catoosa, and inflicted major damage to Catoosa High School. Total damage was estimated at $100 million. The same evening, another tornado destroyed seven mobile homes and two houses near Locust Grove.
An F1 tornado touched down near Millburn (Johnston County) after dark and was illuminated by lightning. It destroyed a small chicken coop or barn and 3 foot diameter pecan trees were uprooted and partially debarked.
A thunderstorm outbreak produced a tornado that destroyed 17 homes and caused major damage to 20 others in Talihina. Six people were treated for injuries at area hospitals.
An upper-level trough made its way into Oklahoma’s warm, moist air, generating severe storms that spawned several tornadoes. Two of the tornadoes in Garfield County were rated EF-2 and caused damage in Enid. The storms continued throughout the night and the next day, producing several small tornadoes and one EF-2 in Ellis County as well as hail up to the size of softballs.
A storm system that moved across the state produced a reported tornado near Boswell. This same system produced heavy rainfall at many Mesonet sites. Pawhuska recorded a two-day total precipitation of 6.15 inches (reported on the 26th and 27th). Bowlegs, Bristow, Mannford, Maramec, Oilton, Skiatook, Trousdale Pawnee, Burbank, Wynona and Konawa all reported more than 5 inches of rain over the two-day period.
Thunderstorms developed across north-central Oklahoma and southern Kansas. Nine tornadoes were produced by the storms in Oklahoma, including several devastating tornadoes that remained on the ground for over half an hour.
Kenton received 6 inches of snow on the 27th and 28th.
After waves of storms moved through the eastern two-thirds of the state, 24-hour rainfall totals exceeded 9 inches in Love County near Marietta, 7 inches in Love and Marshall counties, and over 5 inches in Kay and Osage counties. Flooding was reported in Ponca City and Marietta.
Thunderstorms produced hail as large as 4.5 inches in diameter at Peckham and winds as strong as 100 miles per hour at Picher and Cardin.
While a good portion of Oklahoma received substantial precipitation, southern Oklahoma broke records. The Burneyville mesonet site recorded 12.42 inches of rain—the most rain the Mesonet has ever recorded in a day for any station in the network since it began. Several other stations recorded over 7 inches of rain and there were areas of flooding. This 500-year rainfall event was made possible by an outflow boundary on the 29th.
The Fort Cobb Mesonet station recorded 4.87 inches of rain and 3.12 inches fell at Hobart Mesonet.
Another round of thunderstorms developed in northwestern Oklahoma, producing large hail in Harper, Woods, Woodward and Major counties. A tornado was reported north of Mooreland and several funnel clouds were observed near Woodward.