Public Information Statement
Issued by NWS Shreveport, LA

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NOUS44 KSHV 130141

Public Information Statement
National Weather Service Shreveport La
841 PM CDT Fri May 12 2017

...NWS Damage Survey For The May 11, 2017 Tornado Event...

.Overview...Warm sector thunderstorms developed over northeast
Texas ahead of a dry line and a cold front moving in from the west
and northwest, respectively. As the dryline approached, these
thunderstorms became severe during the evening hours, producing
tornadoes and strong winds. By late night, as the lagging cold
front approached the region, it also aided in the generation of
severe thunderstorms which produced strong winds.

.Tornado # 1 Just West of Gladewater TX in Far Southern Upshur County...

Rating:                 EF-1
Estimated Peak Wind:    90-95 MPH
Path Length /Statute/:  1.52 Miles
Path Width /Maximum/:   175 Yards
Fatalities:             0
Injuries:               0

Start Date:             May 11 2017
Start Time:             609 pm CDT
Start Location:         2 Miles west of Gladewater
Start Lat/Lon:          32.5528 / -95.0058

End Date:               May 11 2017
End Time:               611 pm CDT
End Location:           1 mile northwest of Gladewater
End_Lat/Lon:            32.5646 / -94.9889

Survey_Summary: An EF-1 tornado touched down across a wooded area
in a pastureland just west of Juniper Road near the Sabine River
south of Highway 80, just west of the Gladewater city limits in
far Southern Upshur County. Through the path length, this tornado
remained around treetop level, shearing the tops off of numerous
trees while also snapping and uprooting trees, where trees had
fallen on a mobile home, a motor home, and a pickup truck on Juniper
Road. The tornado traveled northeast across Highway 80 to near
Locust Road and Green Road where additional trees were partially
snapped or uprooted. A few shingles were blown off the back of a
home on Green Road. The tornado lifted on White Oak Road about
one-quarter mile southeast of Locust Road. It should be noted that
this parent supercell thunderstorm produced damaging straight line
winds that also uprooted a large hardwood tree on West Gay Avenue
and downed a tree on power lines on West Sheppard Dr in North
Gladewater, while also snapping large limbs on Lake Drive and
Philips Springs Road just east of Lake Gladewater.

.Tornado # 2 near the Union Grove and East Mountain communities along
 the Upshur and Upshur County lines just North of White Oak...

Rating:                 EF-1
Estimated Peak Wind:    100-110 MPH
Path Length /Statute/:  2.69 Miles
Path Width /Maximum/:   220 Yards
Fatalities:             0
Injuries:               0

Start Date:             May 11 2017
Start Time:             623 pm CDT
Start Location:         1 Mile southeast of Union Grove
Start Lat/Lon:          32.5738 / -94.8971

End Date:               May 11 2017
End Time:               629 pm CDT
End Location:           1 Mile South of East Mountain
End_Lat/Lon:            32.5704 / -94.8510

Survey_Summary: An EF-1 tornado touched down along North White Oak
Road on the edge of the Union Grove incorporated limits, and moved
east along Union Grove Road, crossing Seagull Road and Morgan Road.
This tornado remained mostly at treetop level at and shortly after
its initial touchdown, shearing the tops of numerous trees before
touching down in an open pasture between Morgan Road and East
Mountain Road. Several large pine, cedar, and mesquite trees were
snapped or uprooted, with a few shingles blown off of a home at
the intersection of East Mountain Road and Shiloh Road. This tornado
then partially lifted back to treetop levels along Shiloh Road,
with numerous trees snapped or sheared near the top. The most
extensive damage came at the Shiloh Baptist Church, where the tornado
tore off a small section of the roof and steeple and threw them
northeast into the adjacent church cemetery. Several large hardwoods
were also snapped at the base or uprooted along Shiloh Road and in
the cemetery, with this damage justifying the high end EF-1 damage.
The tornado continued east along Shiloh Road where it partially
lifted back to treetop level, shearing the tops of numerous trees
before finally lifting about one-half mile west of Farm to Market
Road 1845.

.Tornado # 3 Minden Tornado in Rusk County TX...

Rating:                 EF-1
Estimated Peak Wind:    100-110 MPH
Path Length /Statute/:  5.54 Miles
Path Width /Maximum/:   280 Yards
Fatalities:             0
Injuries:               0

Start Date:             May 11 2017
Start Time:             703 pm CDT
Start Location:         8 Miles N of Mount Enterprise
Start Lat/Lon:          32.0177 / -94.6932

End Date:               May 11 2017
End Time:               716 pm CDT
End Location:           10 ESE of Henderson
End_Lat/Lon:            32.0869 / -94.6542

Survey_Summary: An EF1 tornado touched down along FM 1798 East
just east of FM 95. This tornado appeared to be skimming the tree
tops until it touched down along County Road 3125 South, snapping
and uprooting trees. Another area of more focused damage was along
County Road 363 South and County Road 364 South, where several
more trees were snapped and uprooted. At least two of these trees
fell on a house and outbuilding, causing damage. This tornado
appeared to lift shortly beyond County Road 364 South.

.Tornado # 4 Garrison Tornado in Nacogdoches and Rusk County TX...

Rating:                 EF-2
Estimated Peak Wind:    120-130 MPH
Path Length /Statute/:  4.61 Miles
Path Width /Maximum/:   800 Yards
Fatalities:             0
Injuries:               0

Start Date:             May 11 2017
Start Time:             833 pm CDT
Start Location:         1 Mile SW of Garrison
Start Lat/Lon:          31.8149 / -94.4989

End Date:               May 11 2017
End Time:               845 pm CDT
End Location:           4 Miles WSW of Timpson
End_Lat/Lon:            31.8893 / -94.4547

Survey_Summary: The Garrison area of Nacogdoches County sustained
significant wind and tornado damage related to this thunderstorm.
The EF2 tornado touched down southwest of Garrison along Highway
59, before moving through downtown Garrison. Several businesses
along Highway 59 sustained roof damage, including what had once
been a dentist office, a bank, and what appeared to be an auto
repair shop. The dentist office was particularly hard hit, rating
this storm an EF2, with a section of the roof removed. The auto
shop roof lifted and was deposited in the bank`s parking lot. The
auto shop also had two outer cinder block walls collapse as a
result of the roof tearing off, which rated the storm an EF2. A
secondary area of EF2 damage occurred in the southeast corner of
Rusk County along Highway 59, where the tornado tore through a
chicken farm, destroying one chicken coop with all chickens lost and
damaging 5 others. The tornado also snapped several power poles
in this area. The tornado lifted just beyond County Road 4759.
Several homes sustained roof damage from snapped or uprooted
trees, and at least 20 outbuildings were damaged or destroyed.

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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