Public Information Statement
Issued by NWS Huntsville, AL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
272
NOUS44 KHUN 202117
PNSHUN
ALZ008>010-210815-

Public Information Statement
National Weather Service Huntsville AL
317 PM CST Mon Nov 20 2017

...NWS Damage Survey for November 18, 2017 Tornado Event

.Update....Data marked with a "*" has been updated since the
previous Public Information Statement. Additional survey details
were also added to each tornado.

.Update #2...Added a section on the Lauderdale County straight line
wind damage.

.Hatton, Alabama Tornado...

Rating:                   EF-1
Estimated Peak Wind:      110 MPH*
Path length /Statute/:    4.3 Miles*
Path width /Maximum/:     300 Yards*
Fatalities:               0
Injuries:                 0

Start date:               11/18/2017
Start time:               5:18 PM
Start location:           4.2 miles NW of Hatton, AL
Start Lat/Lon:            34.6094/-87.4622

End date:                 11/18/2017
End time:                 5:24 PM*
End location:             4.3 miles NNE of Hatton, AL
End_lat/lon:              34.618/-87.3868

The tornado looks to have touched down on CR-140 and along a
forested area just west of where CR-140 and AL Highway 157
intersect. Just east of 157, a house had significant damage. The
tin roof was peeled away from its wooden supports, some of which
were broken. Large trees were snapped and uprooted and were
laying in multiple directions. A well constructed sturdy barn
with metal supports was completely mangled and collapsed. Debris
from the barn and the house was tossed into the woods behind it
and wrapped around trees. The tornado then tracked east, with a
swath of damage bordering and along CR-140. The houses all along
this road had shingle damage, as well as a few holes through the
wood of the roof. Another house had an east facing door blown in
with a back porch pulled away from another. One house in
particular, along with roof damage, had a roof completely removed
from a large car port with its supports pulled from the concrete.
A trailer was also picked up and placed on top of a tractor. This
house also had a row of trees completely snapped near the center
of the tree. All along the road there were very large trees
uprooted and trunks snapped. The tornado moved east through
forested areas before impacting more houses along CR-449. One
house had a window blown out and an interior door was twisted
along with a small outbuilding collapsed. Next door, a mobile home
had the tin peeled off and twisted and some thrown around trees.
Siding on the back side was peeled off and the undercarriage was
blown out in a few places. A standalone garage port was slightly
shifted off its foundation with the doors blown in. Multiple trees
were uprooted and snapped as well. The tornado crossed AL-101
uprooting trees. A mobile home had a few shingles missing along
with a few trees uprooted and snapped were found near CR-256 and
Broad Hollow Road. No damage was found east of this point.


.Littleville, AL Tornado...

Rating:                   EF-1
Estimated Peak Wind:      95 MPH
Path length /Statute/:    1.8 Miles
Path width /Maximum/:     200 Yards
Fatalities:               0
Injuries:                 0

Start date:               11/18/2017
Start time:               5:01 PM*
Start location:           3.5 miles W of Littleville, AL
Start Lat/Lon:            34.588/-87.737

End date:                 11/18/2017
End time:                 5:04 PM*
End location:             1.7 miles W of Littleville, AL
End_lat/lon:              34.589/-87.707


The tornado touched down in the vicinity of Ligon Springs Road,
about half a mile north of where Ligon Springs Road turns east.
Multiple trees in this area were uprooted. The tornado then
tracked almost due east. Where the tornado intersected Cook Creek
Road, there were numerous trees uprooted and smaller trunks
snapped. A house was also damaged on Cook Creek Road. The garage
attached to the house was almost completely collapsed and was
pulled away from the main house. The house also had some shingle
and siding damage as well as the porch supports blown out.
Multiple trees behind the home were uprooted and smaller trunks
were snapped. The tornado continued to track east and cross the
eastern portion of Ligon Springs Road. On this road, a small barn
was mostly collapsed along with a few trees uprooted and lying
across the road. No additional damage was found farther east.

.Straight Line Wind Damage in Lauderdale County...

Straight line wind damage occurred in Lauderdale County, near
Florence and near Killen, AL on the night of November 18, 2017. The
Emergency Managers extensively surveyed the damage the night of
November 18 and through the day on November 19. They determined the
damage was the result of strong straight line winds, estimated at 80-
90 MPH. With squall lines, wind damage occurs very frequently in a
linear fashion and in wide swaths. Straight line wind damage can be
as strong as tornadoes and can still produce extensive damage. We
thank the Emergency Managers for conducting a thorough
investigation.


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.

Thank you to the Emergency Managers and members of the public for
your time and help.

Nash
Lyza/Kauffman-UAH

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.