Public Information Statement
Issued by NWS Tulsa, OK

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NOUS44 KTSA 221517
PNSTSA
ARZ001-002-010-011-019-020-029-OKZ049-053>076-230330-

Public Information Statement
National Weather Service Tulsa OK
1017 AM CDT Mon May 22 2017

...NWS DAMAGE SURVEY FOR 05/18/2017 TORNADO EVENT- UPDATE 1...

.UPDATE...ADDED TORNADOES WEST OF MUSKOGEE...NORTHWEST OF
MUSKOGEE...NEAR OKAY...AND NORTHWEST OF PEGGS.

.OVERVIEW...A line of severe thunderstorms moved through eastern
Oklahoma and northwestern Arkansas during the evening and early
morning hours of May 18th. Strong instability and very strong low
level wind shear that was present across the area as the storms
moved through the region, supported the development of persistent
and strong low-level circulations along the leading edge of the
line of thunderstorms. These circulations resulted in the
development of a number of tornadoes. NWS Tulsa meteorologists
have surveyed some of this damage over the past three days and
their findings to date are detailed below. Additional surveys
will be needed over the coming days to investigate a number of
other areas where tornadoes possibly occurred.

.Redbird Oklahoma Tornado...

Rating:                 EF-1
Estimated Peak Wind:    90 to 100 mph
Path Length /Statute/:  5 miles
Path Width /Maximum/:   500 yards
Fatalities:             0
Injuries:               0

Start Date:             May 18 2017
Start Time:             1030 pm CDT
Start Location:         7 SSW Redbird / Wagoner County / OK
Start Lat/Lon:          35.7882 / -95.6194

End Date:               May 18 2017
End Time:               1036 pm CDT
End Location:           4.1 SE Redbird / Wagoner County / OK
End Lat/Lon:            35.8350 / -95.5523

Survey Summary: This tornado developed just east of the Arkansas
River, south of Redbird and southeast of Haskell. The tornado
destroyed a center-pivot irrigation system and snapped several
power poles and trees as it moved northeast, dissipating southwest
of Porter.

.Muskogee Oklahoma Tornado 1...

Rating:                 EF-1
Estimated Peak Wind:    90 to 100 mph
Path Length /Statute/:  2.0 miles
Path Width /Maximum/:   400 yards
Fatalities:             0
Injuries:               0

Start Date:             May 18 2017
Start Time:             1037 pm CDT
Start Location:         3 WSW Muskogee / Muskogee County / OK
Start Lat/Lon:          35.7300 / -95.4173

End Date:               May 18 2017
End Time:               1039 pm CDT
End Location:           1.4 WNW Muskogee
End Lat/Lon:            35.7520 / -95.3932

Survey Summary: This tornado developed on Eagle Crest Golf Club,
where several homes were damaged and trees were uprooted. It moved
northeast blowing down trees and power poles, and then dissipated
over the west side of Muskogee.

.Porter Oklahoma Tornado...

Rating:                 EF-1
Estimated Peak Wind:    95 to 105 mph
Path Length /Statute/:  10.3 miles
Path Width /Maximum/:   700 yards
Fatalities:             0
Injuries:               0

Start Date:             May 18 2017
Start Time:             1039 pm CDT
Start Location:         0.9 SSW Porter / Wagoner County / OK
Start Lat/Lon:          35.8548 / -95.5275

End Date:               May 18 2017
End Time:               1052 pm CDT
End Location:           1.4 WNW Wagoner / Wagoner County / OK
End Lat/Lon:            35.9625 / -95.4019

Survey Summary: This tornado developed south of Porter where it
uprooted trees and destroyed an outbuilding. It moved northeast
damaging homes, destroying outbuildings, uprooting or snapping
numerous trees...and blowing power poles down. The tornado
dissipated on the northwestern side of Wagoner, north of Highway
51.

.Muskogee Oklahoma Tornado 2...

Rating:                 EF-2
Estimated Peak Wind:    115 to 125 mph
Path Length /Statute/:  2.8 miles
Path Width /Maximum/:   400 yards
Fatalities:             0
Injuries:               0

Start Date:             May 18 2017
Start Time:             1040 pm CDT
Start Location:         1.1 NW Muskogee / Muskogee County / OK
Start Lat/Lon:          35.7583 / -95.3846

End Date:               May 18 2017
End Time:               1043 pm CDT
End Location:           3 NNE Muskogee / Muskogee County / OK
End Lat/Lon:            35.7893 / -95.3530

Survey Summary: This tornado developed over the northern side of
Muskogee where it damaged homes and snapped or uprooted trees. The
tornado destroyed a well-constructed metal framed building south
of Highway 62, and then tore the roof off a couple apartment
buildings north of Highway 62. Trees and power poles were snapped
and businesses along Highway 62 had roof damage and broken
windows. It continued northeast destroying outbuildings and
blowing down trees, dissipating northeast of the intersection of N
Main and E Harris Road.

.Okay/Hulbert Oklahoma Tornado...

Rating:                 EF-1
Estimated Peak Wind:    95 to 105 mph
Path Length /Statute/:  16.6 miles
Path Width /Maximum/:   650 yards
Fatalities:             0
Injuries:               0

Start Date:             May 18 2017
Start Time:             1045 pm CDT
Start Location:         5.1 W Ft Gibson / Muskogee County / OK
Start Lat/Lon:          35.8073 / -95.3392

End Date:               May 18 2017
End Time:               1059 pm CDT
End Location:           5.2 NNW Hulbert / Cherokee County / OK
End Lat/Lon:            36.0036 / -95.1706

Survey Summary: This tornado developed in the Arkansas River
lowlands northeast of Muskogee, near the Wagoner County line where
trees were uprooted. It moved across southeastern Wagoner County
uprooting trees to the south and east of Okay, and then crossed
the south side of Fort Gibson Lake. The tornado moved across
Sequoyah State Park where trees were snapped and uprooted. It
dissipated northwest of Hulbert after uprooting and snapping trees
for several miles north of Highway 51.

.Fort Gibson Lake Oklahoma Tornado...

Rating:                 EF-1
Estimated Peak Wind:    90 to 100 mph
Path Length /Statute/:  12.7 miles
Path Width /Maximum/:   650 yards
Fatalities:             0
Injuries:               0

Start Date:             May 18 2017
Start Time:             1048 pm CDT
Start Location:         4.1 SE Wagoner / Wagoner County/ OK
Start Lat/Lon:          35.9150 / -95.3299

End Date:               May 18 2017
End Time:               1105 pm CDT
End Location:           9.4 SE Chouteau / Mayes County / OK
End Lat/Lon:            36.0815 / -95.2374

Survey Summary: This tornado developed southeast of Wagoner in
lowlands of Fort Gibson Lake. It moved northeast uprooting
numerous trees, damaging homes, and destroying outbuildings north
of Highway 51. The tornado then moved over Fort Gibson Lake and
back onshore northeast of Wagoner where trees were uprooted and
snapped, several boat docks were destroyed, and homes were
damaged. It moved back over Fort Gibson Lake and then across the
far northeastern portion of Wagoner County where trees were
uprooted and snapped. The tornado dissipated shortly after
crossing the Mayes County line, on the east side of the Neosho
River, southeast of Chouteau.

.Peggs Oklahoma Tornado...

Rating:                 EF-1
Estimated Peak Wind:    100 to 110 mph
Path Length /Statute/:  5.8 miles
Path Width /Maximum/:   800 yards
Fatalities:             0
Injuries:               0

Start Date:             May 18 2017
Start Time:             1101 pm CDT
Start Location:         6 SW Peggs / Cherokee County / OK
Start Lat/Lon:          36.0169 / -95.1727

End Date:               May 18 2017
End Time:               1107 pm CDT
End Location:           1.8 NW Peggs / Mayes County / OK
End Lat/Lon:            36.0933 / -95.1275

Survey Summary: This tornado snapped or uprooted numerous trees.

EF Scale: The enhanced Fujita scale classifies tornadoes into the
following categories.

EF0...weak......65 To 85 mph
EF1...weak......86 to 110 mph
EF2...strong....111 to 135 mph
EF3...strong....136 to 165 mph
EF4...violent...166 to 200 mph
EF5...violent...>200 mph

Note:
The information in this statement is preliminary and subject to
change pending final review of the events and publication in NWS
Storm Data.

$$

EJC/SFP



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