A volatile atmosphere was in place across the Southern Plains during the afternoon and evening hours of Monday, May 9th. Instability became moderate to high ahead of an upper level disturbance that moved out of the Intermountain West and into the Plains.  Deep layer shear was significant enough that storm mode was supercells which developed along a pre-frontal trough axis across portions of Central Oklahoma and North Central Texas.  Low level shear was significant enough such that once these storms became supercells, they produced tornadoes...some extreme with long tracks across portions of Oklahoma.  These storms propagated eastward through the evening and moved into McCurtain County, Oklahoma and the adjacent counties in Northeast Texas, as well as portions of Southwest Arkansas.  By the time the storms moved into these areas, they mostly produced straight line wind damage but a couple short lived tornadoes did develop across the region as well as some large hail.  The damage was extreme, consisting of numerous trees snapped and/or uprooted with some of these having fallen on homes and automobiles.  There was also some wind damage to structures as well.  Some flash flooding was also reported over Northeast Texas where storms trained across the same general area.

Hail in RED RIVER, TEXAS
From 09-MAY-16 21:07:00 to 09-MAY-16 21:07:00 (CST-6)
Location: ANNONA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Half dollar size hail fell in Annona.

Hail in BOWIE, TEXAS
From 09-MAY-16 21:00:00 to 09-MAY-16 21:00:00 (CST-6)
Location: DE KALB
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Golf ball size hail fell at the intersection of Highway 259 and Highway 82 near Dekalb.

Flash Flood in RED RIVER, TEXAS
From 09-MAY-16 20:57:00 to 09-MAY-16 23:30:00 (CST-6)
Location: CLARKSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flooding over sidewalks on Main Street in Downtown Clarksville.

Thunderstorm Wind in RED RIVER, TEXAS
From 09-MAY-16 20:48:00 to 09-MAY-16 20:48:00 (CST-6)
Location: DETROIT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree down and power was out in the city of Detroit.

Flash Flood in RED RIVER, TEXAS
From 09-MAY-16 20:47:00 to 09-MAY-16 23:30:00 (CST-6)
Location: DETROIT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two feet of water was reported over several roads in Detroit.

Hail in RED RIVER, TEXAS
From 09-MAY-16 20:10:00 to 09-MAY-16 20:10:00 (CST-6)
Location: CLARKSVILLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Golfball size hail fell in Clarksville.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 22:27:00 to 09-MAY-16 22:27:00 (CST-6)
Location: NASH
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An estimated 60 MPH wind gust occurred at the intersection of County Road 1214 and Highway 67.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 22:59:00 to 09-MAY-16 22:59:00 (CST-6)
Location: HOLLAND
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees down blocking roadways on the Texas side of Texarkana. Trees down on 2 homes. Power lines were also down on Kings Highway north of Interstate 30.

Tornado in BOWIE, TEXAS
From 09-MAY-16 20:06:00 to 09-MAY-16 20:07:00 (CST-6)
Location: BEAVERDAMS
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with estimated winds between 85-95 mph touched down along County Road 3303, snapping and uprooting several trees.

Hail in RED RIVER, TEXAS
From 09-MAY-16 20:00:00 to 09-MAY-16 20:00:00 (CST-6)
Location: BAGWELL
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ten minutes of continuous hen egg to golf ball size hail was reported in the Bagwell community.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 22:21:00 to 09-MAY-16 22:21:00 (CST-6)
Location: REDWATER
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees down on Farm to Market Road 991.

Hail in BOWIE, TEXAS
From 09-MAY-16 22:21:00 to 09-MAY-16 22:21:00 (CST-6)
Location: DEFENSE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball size hail fell at the intersection of Farm to Market Road 3098 and County Road 1109.

Tornado in BOWIE, TEXAS
From 09-MAY-16 19:59:00 to 09-MAY-16 20:03:00 (CST-6)
Location: SPRING HILL
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with estimated winds between 85-95 mph touched down along Farm to Market Road 2735 just east of Highway 259 before lifting along County Road 3313. Although the primary damage was snapped and uprooted trees, one home had minor siding loss and one outbuilding was damaged.

Thunderstorm Wind in RED RIVER, TEXAS
From 09-MAY-16 19:25:00 to 09-MAY-16 19:25:00 (CST-6)
Location: WHITE ROCK
Magnitude: 74.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple trees were blown down in the northeast part of Red River County.

Hail in BOWIE, TEXAS
From 09-MAY-16 22:21:00 to 09-MAY-16 22:21:00 (CST-6)
Location: REDWATER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell on Farm to Market Road 991.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 22:10:00 to 09-MAY-16 22:10:00 (CST-6)
Location: LEARY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees down near Interstate 30 between Nash and Leary.

Hail in RED RIVER, TEXAS
From 09-MAY-16 19:25:00 to 09-MAY-16 19:25:00 (CST-6)
Location: CLARKSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell in Clarksville.

Hail in BOWIE, TEXAS
From 09-MAY-16 21:52:00 to 09-MAY-16 21:52:00 (CST-6)
Location: LEARY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell in the Leary community.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 22:08:00 to 09-MAY-16 22:08:00 (CST-6)
Location: LEARY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Tree down across Highway 82 and Farm to Market Road 2253 about one-quarter of a mile from the Leary exit.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 22:04:00 to 09-MAY-16 22:04:00 (CST-6)
Location: EYLAU
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A 70 mph wind gust was estimated at the intersection of Highway 59 and Kings Highway southwest of Texarkana.

Hail in BOWIE, TEXAS
From 09-MAY-16 22:00:00 to 09-MAY-16 22:00:00 (CST-6)
Location: LEARY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell along Interstate 30 near Leary.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 22:00:00 to 09-MAY-16 22:00:00 (CST-6)
Location: LEARY
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An 18 Wheeler was blown onto its side between mile marker 217 and 218 on Interstate 30 just east of Leary. Large limbs were also blown onto Interstate 30.

Hail in BOWIE, TEXAS
From 09-MAY-16 21:55:00 to 09-MAY-16 21:55:00 (CST-6)
Location: LEARY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Half dollar size hail fell east of Leary.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:55:00 to 09-MAY-16 21:55:00 (CST-6)
Location: WAMBA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees were blown down in the Red Lick community.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:43:00 to 09-MAY-16 21:43:00 (CST-6)
Location: HOOKS
Magnitude: 78.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Widespread tree damage occurred just east northeast of Hooks. Several trees were uprooted, all of which pointed to the south southeast. One tree landed on a corner of a house.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:55:00 to 09-MAY-16 21:55:00 (CST-6)
Location: NASH
Magnitude: 83.00 EG
Property damage: 300.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Widespread wind damage started approximately one mile east northeast of Hooks and continued almost to Leary. Several trees were snapped and uprooted. A number of homes lost shingles, with one mobile home losing an entire roof structure suspended over the home. Several outbuildings were damaged or destroyed. The damage path continued east towards Texarkana, with some of the most concentrated damage occurring along Farm to Market Road 2148, County Road 2213, North Kings Highway, and along Interstate 30 between Leary and Nash. Numerous very large hardwood trees were snapped and uprooted. One very large tree fell onto a house causing major damage to the structure. The front face of a paint store was blown away when the winds hit two pillars of the facade which extended several feet above the roof and was completely exposed to the high winds.

Thunderstorm Wind in RED RIVER, TEXAS
From 09-MAY-16 20:08:00 to 09-MAY-16 20:08:00 (CST-6)
Location: MC COY
Magnitude: 78.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A swath of sporadic wind damage extended from west of Clarksville along County Road 1245 and County Road 1286 eastward into the southern portions of the city of Clarksville. Most of the damage consisted of snapped and uprooted trees. A few isolated instances of shingle loss and minor roof damage was found within the city limits of Clarksville.

Thunderstorm Wind in RED RIVER, TEXAS
From 09-MAY-16 19:09:00 to 09-MAY-16 19:09:00 (CST-6)
Location: NEGLEY PO
Magnitude: 74.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple large trees and power lines were downed along Highway 37 north of Clarksville, all of which were facing east.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:53:00 to 09-MAY-16 21:53:00 (CST-6)
Location: HOLLAND
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Power lines down in the Pleasant Grove community.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:52:00 to 09-MAY-16 21:52:00 (CST-6)
Location: LEARY
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters estimated 80 mph winds about 4 miles west of Nash.

Thunderstorm Wind in RED RIVER, TEXAS
From 09-MAY-16 19:03:00 to 09-MAY-16 19:03:00 (CST-6)
Location: DIMPLE
Magnitude: 74.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several hardwood trees were uprooted on County Road 2239, facing east.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:50:00 to 09-MAY-16 21:50:00 (CST-6)
Location: NASH
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Multiple wooden power poles were snapped, with power lines down across the road.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:50:00 to 09-MAY-16 21:50:00 (CST-6)
Location: HOOKS
Magnitude: 74.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A roof was torn off of a home in Hooks.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:48:00 to 09-MAY-16 21:48:00 (CST-6)
Location: LEARY
Magnitude: 78.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A single wide home with an additional roof structure built over the home had this portion of the roof tossed approximately 100 feet and destroyed.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:48:00 to 09-MAY-16 21:48:00 (CST-6)
Location: RED SPGS
Magnitude: 83.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Numerous large trees were snapped and uprooted along Oak Forest Lane and Elmwood Drive north of Farm to Market Road 991.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:47:00 to 09-MAY-16 21:47:00 (CST-6)
Location: HOOKS
Magnitude: 78.00 EG
Property damage: 125.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Widespread tree damage occurred along Garden Road in Hooks. Several trees were uprooted here, one tree fell on a home, and another fell on a vehicle.

Hail in BOWIE, TEXAS
From 09-MAY-16 21:43:00 to 09-MAY-16 21:43:00 (CST-6)
Location: SMITH HILL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail fell along Interstate 30 just west of Hooks.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:43:00 to 09-MAY-16 21:43:00 (CST-6)
Location: HOOKS
Magnitude: 78.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several trees were snapped or uprooted on Garden Road. One tree fell on a pergola and outdoor garden.

Hail in BOWIE, TEXAS
From 09-MAY-16 21:21:00 to 09-MAY-16 21:21:00 (CST-6)
Location: DE KALB
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Nickel size hail fell in Dekalb.

Thunderstorm Wind in BOWIE, TEXAS
From 09-MAY-16 21:21:00 to 09-MAY-16 21:21:00 (CST-6)
Location: DE KALB
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Winds were estimated to be near 60 mph in Dekalb.

Flash Flood in RED RIVER, TEXAS
From 09-MAY-16 21:11:00 to 09-MAY-16 23:30:00 (CST-6)
Location: DETROIT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Farm to Market Road 3281 was flooded and closed northeast of Detroit.