Public Information Statement
Issued by NWS Knoxville/Tri Cities, TN

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NOUS44 KMRX 131915

Public Information Statement...Corrected event date in headline
National Weather Service Morristown TN
301 PM EDT Sat May 13 2017 / 201 PM CDT Sat May 13 2017/



Rating:                 EF-0
Estimated Peak Wind:    80 mph
Path Length /Statute/:  0.15 miles or 250 yards
Path Width /Maximum/:   40 yards
Fatalities:             0
Injuries:               0

Start Date:             05/12/2017
Start Time:             02:30 PM EDT
Start Location:         Unincorporated Town Of Shady Valley TN
Start Lat/Lon:          36.5211/-81.9314

End Date:               05/12/2017
End Time:               02:38 PM EDT
End Location:           Unincorporated Town Of Shady Valley TN
End Lat/Lon:            36.5208/-81.9291

Survey Summary: This was a very small and brief tornado that
remained on the ground for less than 8 minutes and 250 yards while
causing widespread roof damage to two homes, as well as completely
destroying two sheds and a carport structure. Everyone interviewed
stated that the system was rain shielded thereby not allowing anyone
an opportunity to witness it. Storm moved almost due east dropping
out of the Holston Mountains and into the valley floor below where
the  brief EF-0 spun up before falling apart into a straight line
wind event with estimated winds of 50-70 mph for another 1/4 mile.
The straight line winds also caused some minor roof damage as well
as completely destroying an aging barn.

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 event and publication in
NWS Storm Data.

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