Zwolle, Louisiana

... NWS damage survey completed for the may 16th severe thunderstorms
that affected extreme East Texas and northwest Louisiana...

... Corrected location titles of all tornadoes...
... Corrected ending latitude of tornado 2...

A supercell thunderstorm produced four tornado tracks as it moved
across extreme East Texas and northwest Louisiana. This damage
occurred on the afternoon of may 16th. The storm damage survey
results are placed in chronological order in which they happened.

1. 5 miles west of Waskom, TX

Rating: EF-1
estimated peak wind: 90 mph
path length /statute/: 1.5 miles
path width /maximum/: 500 yards
fatalities: 0
injuries: 1

Start date: 05/16/2013
start time: 2:20 PM CDT
start location: 5 mi west of Waskom
start lat/lon: 32.4911 / -94.1534

End date: 5/16/2013
end time: 2:24 PM CDT
end location: 4 mi west of Waskom
end_lat/lon: 32.4852 / -94.1299

Survey_summary: the tornado touched down 4 mi west of Waskom...
and just to the south of i20. The tornado caused damage to
several metal buildings at five Star builders. The tornado then
tracked east uprooting and snapping trees along its path...
then lifting near CR-1105.

2. 1 miles south southeast of Waskom, TX

Rating: EF-1
estimated peak wind: 100 mph
path length /statute/: 0.5 miles
path width /maximum/: 200 yards
fatalities: 0
injuries: 0

Start date: 05/16/2013
start time: 2:34 PM CDT
start location: 0.1 mi south of i20 and just west of Magnolia
Rd. Start lat/lon: 32.4636 / -94.0565

End date: 05/16/2013
end time: 2:36 PM CDT
end location: 0.5 mi south of i20 and just east of Magnolia
Rd. End_lat/lon: 32.4597 / -94.0509

Survey_summary: the tornado touched down just south of i20 on
the southern end of Waskom just west of Magnolia Road. The tornado
caused minor damage to metal buildings and equipment at Red Diamond
Oilfield services. The tornado then tracked south southeast uprooting
and snapping trees along its path... and causing damage to a few
residential homes. The tornado then lifted about 0.5 miles south of
i20 and 0.25 miles east of Magnolia Rd.

3. 1 mile east northeast of Greenwood, la

Rating: EF-1
estimated peak wind: 100 mph
path length /statute/: 5 miles
path width /maximum/: 1400 yards
fatalities: 0
injuries: 1

Start date: 05/16/2013
start time: 2:39 PM CDT
start location: just north of i20 3.5 mi west of Bert kouns
Industrial loop
start lat/lon: 32.4468 / -93.9625

End date: 05/16/2013
end time: 2:50 PM CDT
end location: 0.4 mi southeast of the Bert kouns Industrial
loop and Buncombe Road intersection
end_lat/lon: 32.4080 / -93.8855

Survey_summary: the tornado touched down just north of i20 in
Greenwood near the old Kelly truck stop. The tornado crossed i20 near
the Hwy 80 intersection on the east side of Greenwood. The tornado
uprooted and snapped trees as it moved southeast toward the old
general motors plant. Several residential and Mobile home communities
had structural damage from fallen trees in the path. One injury
occurred at the Blue Ridge Mobile home community near Buncombe Rd and
Bert kouns. The tornado then lifted about 0.4 of a mile southeast of
the Bert kouns and Buncombe Rd intersection.

4. 5 miles north northeast of Stonewall, la

Rating: EF-1
estimated peak wind: 100 mph
path length /statute/: 0.25 miles
path width /maximum/: 250 yards
fatalities: 0
injuries: 0

Start date: 05/16/2013
start time: 3:08 PM CDT
start location: 1 mile north northeast of Stonewall on Bozman
Rd start lat/lon: 32.3329 / -93.7696

End date: 05/16/2013
end time: 3:09 PM CDT
end location: 1 mile north northeast of Stonewall on
Russell Rd end_lat/lon: 32.3303 / -93.7705

Survey_summary: the tornado briefly touched down 1 mile north
northeast of Stonewall. The tornado near a broad area of straight
line wind damage caused by a downburst in northern De Soto Parish.
The tornado had a very short north to south track of about a quarter
mile from Bozman Rd to russel Rd in northern De Soto Parish.

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

&&

... NWS damage survey confirms a downburst in southern Caddo
and northern DeSoto parishes on may 16th...

A supercell thunderstorm produced a downburst that caused significant
straight line wind damage in southern Caddo and northern De Soto
parishes. NWS radar estimated that some of these winds could have
reached near 105 mph. The damage path started near Barron Road in
southern Caddo Parish and ended near lake Rd just east of I-49 in
De Soto Parish. Other sporadic wind damage was observed in south
Shreveport and other parishes in northwest Louisiana... however this
area was the most significant.

Peak wind estimated 105 mph
path length /statute/: 3.5 miles
path width /maximum/: 6000 yards
fatalities: 0
injuries: 0

Start date: 05/16/2013
start time: 3:05 PM CDT
start location: Barron Road in Caddo Parish

End date: 05/16/2013
end time: 3:13 PM CDT
end location: Lake Road in De Soto Parish

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