At 4:07 PM...National Weather Service Doppler radars continued to detect a large area of showers and isolated thunderstorms affecting much of northeast Oklahoma. The stronger areas of reflectivity were located within western Osage and western Pawnee...along with portions of Tulsa and Wagoner counties. All this activity was moving toward the southeast...around 40 miles per hour. Through 5:30 PM...occasional rain showers with isolated thunderstorms will remain possible for much of eastern Oklahoma...primarily along and north of a Bristow to Poteau line. Rainfall amounts will generally be light...with less than a tenth of an inch per hour. The stronger thunderstorms in far western Osage and Pawnee could produce brief heavy rain...up to a quarter inch. No severe weather is expected.
Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 61F. Winds from the NE at 5 to 10 mph. Chance of rain 20%.
Partly cloudy with a chance of a thunderstorm and a chance of rain in the morning, then overcast with a chance of a thunderstorm and a chance of rain. High of 77F. Winds from the SE at 10 to 15 mph. Chance of rain 20%.
Start date: may 20 2013 start time: 351 PM CDT start location: 5 SSW Avant / Osage County / OK
End date: may 20 2013 end time: 405 PM CDT end location: 5.2 WNW Vera / Washington County / OK
Survey summary: numerous trees were snapped or uprooted. A home was damaged by a large limb that fell onto its roof. This tornado path is likely multiple tornadoes. Chaser video will be used to determine how many segments may have occurred.
Start date: may 20 2013 start time: 433 PM CDT start location: 5.8 ENE Ramona / Washington County / OK
End date: may 20 2013 end time: 447 PM CDT end location: 3.4 NNW Talala / Rogers County / OK
Survey summary: this tornado remained over open country for most of its lifecycle. The rating is based on the single home that it is known to have damaged and the nearby barn. The path length is therefore an estimate based on radar data and the width will be an estimate mainly based on chaser video.
Start date: may 20 2013 start time: 625 PM CDT start location: 4 N Fairland / Ottawa County / OK start lat/lon: 36.8129 / -94.8461
End date: may 20 2013 end time: 640 PM CDT end location: 4 NE Wyandotte / Ottawa County / OK end lat/lon: 36.8298 / -94.6706
Survey summary: this tornado snapped or uprooted numerous trees and damaged numerous homes. The most significant damage was located near the area where the tornado crossed Highway 137 where a metal building was severely damaged and several homes were damaged. Many Hardwood trees were also snapped in that area.
Start date: may 20 2013 start time: 632 PM CDT start location: 2.8 NW Wyandotte / Ottawa County / OK start lat/lon: 36.8128 / -94.7701
End date: may 20 2013 end time: 642 PM CDT end location: 0.5 se Seneca / Newton County / MO end lat/lon: 36.8359 / -94.6062
Survey summary: this tornado damaged several houses... damaged barns or outbuildings... and snapped or uprooted a number of trees. It dissipated over the south side of Seneca Missouri after snapping or uprooting several trees as it crossed the state line and crossed Highway 43. Several eyewitnesses north of Wyandotte saw two tornadoes approaching from the west and radar data as well as damage patterns support that conclusion. In addition... there was lots of evidence of straight-line wind damage south of the tornado paths as the Bow echo storm surged east as it approached the state line.