Public Information Statement
Issued by NWS St. Louis, MO

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NOUS43 KLSX 192339

Public Information Statement
National Weather Service Saint Louis MO
639 PM CDT Fri May 19 2017

639 PM CDT Fri May 19 2017

...NWS Damage Survey For 05/19/17 Early Morning Tornadoes...

.Williamsburg Tornado (Callaway County, Missouri)...

Rating:                 EF-1
Estimated peak wind:    100 mph
Path length /Statute/:  1.6 miles
Path width /Maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start date:             May 19 2017
Start time:             4:15 AM
Start location:         1E of Williamsburg
Start Lat/Lon:          38.9166/-91.6829

End date:               May 19 2017
End time:               4:16 AM
End location:           3E of Williamsburg
End_lat/lon:            38.9180/-91.6536

A weak tornado formed one mile east of Williamsburg, Missouri
along Old US 40 at a residence and business where two barns were
damaged and another was destroyed. Two vehicles were also flipped
at this location. Debris was tossed up to mile down the tornadoes
path into the adjacent farm field and tree line. The damage was
rated EF1 with winds estimated at 100 mph. The tornado crossed
County Road 1031 snapping a power pole. The tornado dissipated
shortly after crossing County Road 1033.

.New Florence Tornado (Montgomery County, Missouri)...

Rating:                 EF-0
Estimated peak wind:    80 mph
Path length /Statute/:  4.0 miles
Path width /Maximum/:   75 yards
Fatalities:             0
Injuries:               0

Start date:             May 19 2017
Start time:             4:23 AM
Start location:         1SE of New Florence
Start Lat/Lon:          38.8952/-91.4450

End date:               May 19 2017
End time:               4:28 AM
End location:           3NE of New Florence
End_lat/lon:            38.9426/-91.4028

A weak tornado formed on the south outer road of Interstate 70 one
mile southeast of New Florence. It caused damage to two buildings
at a MODOT facility, including the removal of 12 garage doors. The
tornado tossed these doors and roofing material into the power
lines, causing one of the poles to snap. Some of the material
landed across Interstate 70 at a residence on MO WW. There was
minor damage to the house with a garage door ruined and the porch
pillars shifted off the foundation. Debris stretched into the
adjacent field. The tornado continued northeast and caused roof
and door damage to three barns on Hudson Road east of New
Florence. The tornado continued northeast and ended shortly after
destroying a barn on County Road 230, south of Manley Road.

Further east along Interstate 70, near mile marker 177, a broad
swath of straight line winds (nearly a mile wide) snapped six
power poles and flipped a semi on its side.

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

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


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