Multiple tornadoes confirmed in the Tennessee Valley from Nov 29-30 severe storms

The Weather Authority

Map of Tornado Paths from November 29-November 30th (Photo – NWS Huntsville)

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The National Weather Service in Huntsville released a new survey statement Friday night to include another Cullman-Winston tornado from Tuesday night. With all the surveys put together in this reports it states that as many as nine tornadoes touched down in the Tennessee Valley area during the evening hours of Tuesday, November 29 as well as the early morning hours of Wednesday, November 30.

Below are the details of the tornado damage assessment surveys conducted by the NWS.

Public Information Statement
National Weather Service Huntsville AL
620 PM CST Fri Dec 2 2016

...NWS Damage Survey for 11/29/16 to 11/30/16 Tornado Event...Updated

.Update...Updated to add a second Cullman-Winston tornado, and bring
all the most recent surveys onto one product. Including tornadoes
that originated in Winston County, this results in 9 tornadoes that
impacted some portion of the NWS Huntsville County Warning Area,
all in Alabama (these are listed in order of update time and reflect
the order of the survey summaries below):

1) Cullman-Winston 2 (Arley/Helicon from WFO Birmingham)
2) Estillfork (Jackson Co.)
3) Allison (Jackson Co.)
4) Monte Sano/Ryland/Maysville/Princeton (Madison/Jackson Co.)
5) Rosalie/Ider (Jackson/DeKalb Co.)
6) Cullman-Winston 1 (County Road 66 Tornado from WFO Birmingham)
7) Union Grove (Marshall Co.)
8) Morgan County/Neel
9) Crooked Oak/Underwood/Frankfort (Franklin/Colbert Co.)

.Cullman-Winston County Line #2 Tornado...

Rating:                   EF-1
Estimated Peak Wind:      95 MPH
Path length /Statute/:    2.4 Miles
Path width /Maximum/:     TBD
Fatalities:               0
Injuries:                 0

Start date:               Nov 29 2016 
Start time:               905 PM CST
Start location:           2 ENE Helicon
Start Lat/Lon:            34.1394 / -87.2016

End date:                 Nov 29 2016
End time:                 907 PM CST
End location:             2 ESE Ne Smith
End_lat/lon:              34.1604 / -87.0781

Survey Summary: 
This tornado was originally the Arley/Helicon EF-2
tornado that originated in Winston County (WFO Birmingham). It
continued across County Road 986, causing significant damage to a
barn and snapping several hardwood and softwood trees. The tornado
continued northeast, continued to snap trees and destroyed another
shed as it crossed CR 946 and 939. It appeared to lift northeast of
CR 939.

Thanks to WFO Birmingham for their assistance with this survey.

.Estillfork Tornado...

Rating:                   EF-1
Estimated Peak Wind:      95 MPH
Path length /Statute/:    0.9 Miles
Path width /Maximum/:     40 Yards
Fatalities:               0
Injuries:                 0

Start date:               Nov 29 2016 
Start time:               1002 PM CST
Start location:           4 W Hytop
Start Lat/Lon:            34.92 / -86.14

End date:                 Nov 29 2016
End time:                 1007 PM CST
End location:             3 W Hytop
End_lat/lon:              34.92 / -86.13

Survey Summary: 
The parent supercell thunderstorm that produced the Monte Sano EF-2
tornado also produced a separate area of rotation that caused
the EF-1 Estillfork tornado. The NWS and UAH survey found significant
softwood tree damage in the form of healthy and snapped pine trees 
along CR-9, east of the CR-9 and CR-141 intersection. The convergence
of the down trees was evident at several locations along CR-9
and in the Estillfork area. Peak winds were determined to be 95 MPH.

.Allison EF-0 Tornado...

Rating:                   EF-0
Estimated Peak Wind:      62 MPH
Path length /Statute/:    3.4 Miles
Path width /Maximum/:     30 Yards
Fatalities:               0
Injuries:                 0

Start date:               11/30/2016 
Start time:               211 AM CST
Start location:           8 W Stevenson
Start Lat/Lon:            34.87 / -85.99

End date:                 11/30/2016
End time:                 217 AM CST
End location:             5 WNW Stevenson
End_lat/lon:              34.89 / -85.94

Survey Summary: 
A small area of tight rotation was observed within a line of strong
thunderstorms west of the Stevenson area. A NWS and UAH survey team
found EF-0 damage near the Allison area associated with this area of
rotation. Numerous large tree branches and roof damage to a large farm
shed was noted near CR-564. Additional tree damage converged near CR-53
and CR-54. Peak winds were 62 MPH.

.Monte Sano/Ryland/Maysville/Princeton Tornado...

Rating:                   EF-2
Estimated Peak Wind:      125 MPH
Path length /Statute/:    18.4 Miles
Path width /Maximum/:     130 Yards
Fatalities:               0
Injuries:                 0

Start date:               Nov 29 2016 
Start time:               929 PM CST
Start location:           3 ENE Huntsville (Monte Sano)
Start Lat/Lon:            34.74 / -86.53

End date:                 Nov 29 2016
End time:                 1000 PM CST
End location:             3 N Princeton
End lat/lon:              34.84 / -86.24

Survey Summary:

12/2/2016 Update...
NWS and UAH survey team determined that the Monte Sano EF-2 tornado
tracked into Western Jackson County and crossed over Putnam
Mountain. The team observed mainly EF-1 and EF-0 damage. Numerous
hardwood trees were either snapped or uprooted as the tornado
crossed the western slope of Putnam Mountain along with a homestead
sustaining minor roof damage and damage to a small shed. Near the ridge 
top, significant tree damage was reported near a small camp ground. Several
camper trailer sustained damage from the downed trees. Additional
ridge top tree damage was observed slightly further to the WSW along CR-303
but was rated lower to slight beetle rot. The tornado continued downslope 
where more hardwood trees were snapped or uprooted along with a camper trailer
that destroyed in the valley.

Previous Survey Summary from 11/30/2016:
Initial continuous damage was found along the leading edge of Monte
Sano Mountain close to the intersection of Monte Sano Blvd. and Nolan
Avenue. Several trees were snapped and uprooted as it moved along the
northern brow of the mountain. A clear, continuous path of snapped
trees was observed just north of the RV campground area of Monte
Sano State Park. From here, the tornado skipped down the northeast face
of the mountain and caused tree damage near Wall Road, Rock Hill Circle,
US Highway 72, Dug Hill Road, and Morring Road.

More significant damage resumed near Ryland Pike near its intersection
with Delta Pine Dr. Trees were snapped on Ryland Pike, then the
tornado entered the Central Estates neighborhood. At least 15 houses
had at least some roof decking removed in the neighborhood. A few
houses had large sections of the roof structure removed, including
one house on Moontown Road which had its entire roof and roof
structure removed. Elsewhere around the neighborhood, many more
houses had at least superficial damage to fascias and gutters, or had
privacy fencing blown away.

The Flint Ridge horse farm suffered significant damage. Nearly all
of the tin roofing was removed from one large and one small horse
barn, and a riding arena was completely destroyed. Nearly all of the
trees within 50-75 yards of the farm buildings were snapped. The
tornado was clearly at its strongest between the house that lost all
roofing, and the horse farm damage. At this location, the peak
intensity is set at 125 MPH, an EF-2 on the Enhanced Fujita scale.

The tornado continued over a nearby ridge and weakened slightly,
snapping and uprooting more trees along Hurricane Creek Road, Sharps
Cove Road, and Neal Drive. Additional damage to houses was noted
along Sharps Cove and Neal Drive, where roofing was peeled off a
manufactured home and nearby single family home.

.Rosalie/Ider Tornado...

Rating:                   EF-3
Estimated Peak Wind:      145 MPH
Path length /Statute/:    13.7 Miles
Path width /Maximum/:     206 Yards
Fatalities:               3
Injuries:                 10

Start date:               Nov 30 2016
Start time:               1202 AM CST
Start location:           4 ENE Pisgah
Start Lat/Lon:            35.69 / -85.78

End date:                 Nov 30 2016
End time:                 1220 AM CST
End location:             10 NNW Ider
End_lat/lon:              34.78 / -85.57

Survey Summary: 

12/1/2016 Update: The supplemental survey of the Rosalie/Ider
Tornado determined that the tornado was one continuous track from
the southern Rosalie area to the AL/GA state line. The 13.7 mile
long track observed peak winds of 145 mph (EF-3) near Ider with
generally EF-2 and EF-1 damage observed elsewhere on the track.

A new start point was observed approx. one half mile to the SSW of
the previous point. Minor roof damage to a structure and a snapped
power line indicated that the tornado was about 100 MPH (EF-1) at
the touch down. 

The assessment team was able to connect the previous Rosalie track
to the Ider track after observing significant roof damage to single
family home with complete destruction to a barn on the property near
the intersection of CR-345 and CR-78. Additional points were added
along CR-330 to CR-117 (DeKalb Co.) after the team recorded snapped
softwood and hardwood trees and damage to a large anchored shed. 

Between CR-117 and AL-75 in DeKalb County, numerous chicken farms
were completely destroyed along. Several homes in the area sustained
significant roof damage and two anchored mobiles homes were observed
to have rolled. One unanchored mobile home was completely destroyed
with scattered debris. 

Finally, the team traveled along CR-792 in the Deer Head Cove area
(near the AL/GA state line) and observed complete destruction to a
well anchored and large metal shed. Winds were estimated to be 111
MPH at this location. Numerous soft wood pine trees were snapped or
uprooted up to the AL/GA state line. The team traveled into nearby
Dade County, observed minor debris, but no damage. 

Previous Summary from 11/30/2016: A potent and very fast moving
super cell impacted Eastern Jackson County and Northern DeKalb
County shortly after midnight on Nov. 30, 2016. Rosalie, AL and
Ider, AL were the most impacted areas with several houses and small
buildings destroyed.  

Rosalie: Sporatic damage was first observed along CR-71, north of
Pisgah with much more widespread tree and structure damage observed
CR-71 and CR-60, entering into Rosalie, where the tornado was
suspected to touch down. Numerous hardwood and pine softwood trees
were observed to be uprooted or snapped along with several wooden
power line poles snapped.  As the tornado moved ENE, nearly on top
of CR-71, roof damage was reported to a brick church.  Additionally,
a large two story wooden structure (used for church related
receptions) was heavily damaged. Damage indicators for that
structure were related to a small barn. EF-1 damage was recorded for
the area around the church with winds approx.
100 mph.

EF-2 damage was observed nearly one quarter mile further ENE along
CR-71. A long, one story strip mall was destroyed (Rosalie Plaza
Grocery). The assessment team noted that the roof was not strapped
down and that cinder blocks were only held together by mortar. It
was determined that the tornado likely blew the roof off the
structure which quickly led to the block walls to collapse. Winds of
125 mph were estimated.

Additional EF-2 damage was reported one quarter to one third mile
further ENE along CR-71. Several mobile homes, with at least one
mobile home noted to have been tied down, were completely destroyed.
Three fatalities were reported from this section of damage.
Additionally, numerous softwood trees were either uprooted or
snapped along with several wooden power poles snapped.

Ider: Significant damage was observed from the tornado along CR-117
and CR-159. Numerous hardwood and softwood trees were either
uprooted or snapped at the trunk along CR-117 leading up to CR-159.
The strongest winds of this tornado were recorded near this
location. A one story day care center was completely destroyed and
blown off its foundation. Preliminary info recorded 7 injuries at
this location. The damage assessment team noted the structure was
bolted the foundation, however the floor plates connecting to the
foundation were observed to have some degree of degradation. This
led to a preliminary assessment of a tornado of EF-3 strength with
winds approx. 145 mph.

.Cullman County/County-line (Winston County) Tornado...

Rating:                   EF-1
Estimated Peak Wind:      100 MPH
Path length /Statute/:    350 Yards
Path width /Maximum/:     50 Yards
Fatalities:               0
Injuries:                 0

Start date:               Nov 29 2016 
Start time:               903 PM CST
Start location:           near Nesmith AL
Start Lat/Lon:            34.1745/-87.1109 

End date:                 Nov 29 2016
End time:                 906 PM CST
End location:             near Nesmith AL
End lat/lon:              34.1760/-87.4189

Survey Summary:

Note: This is the continuation of a tornado that started in Winston
County, Alabama

The tornado that began in Winston County producing EF-1 damage
continued into NW Cullman County near Nesmith, AL where multiple
hardwood and softwood trees were snapped as it moved towards a
storage shed building on County Road 1024.

As it moved towards the small building the tornado uplifted the roof
of the building causing the walls collapse and sending debris across
a field. Then, as the tornado proceeded northeast it uplifted the
metal roof on another single family building. This damage was
consistent with EF-1 intensity and was the strongest damage with
this portion of the tornado track. More trees were snapped just to
the northeast of this position on County Road 1024 near another
single family home before it lifted.

.Union Grove Tornado...

Rating:                   EF-1
Estimated Peak Wind:      100 MPH
Path length /Statute/:    1.2 Miles
Path width /Maximum/:     50 Yards
Fatalities:               0
Injuries:                 0

Start date:               Nov 29 2016 
Start time:               1105 PM CST
Start location:           3 NW Union Grove
Start Lat/Lon:            34.4315/-86.5032

End date:                 Nov 29 2016
End time:                 1111 PM CST
End location:             3 NW Union Grove
End lat/lon:              34.4403/-86.4828

Survey Summary: 

A tornado developed near Union Grove Road and Tinner Mayo road
intersection in the Union Grove Community. As it developed multiple
trees were snapped and uprooted causing minor roof damage to one
single family home. More significant home damage was sustained to
another nearby single family house due to trees snapping and falling
on the roof.

As the tornado proceeded northeast to Tinner Mayo Road, it flipped a
recreational vehicle and moved it into a single family home causing
damage to the home and destroying the recreational vehicle.
Meanwhile, the tornado caused shingles to come off the roof of this
single family house. Further to the northeast, the tornado uplifted
the roof of a storage shed for hay and caused minor roof damage to a
double wide manufactured home.

More damage was sustained to a single family dwelling near Tinner-
Mayo and Brock Chapel road as the tornado continued northeast where
the roof was completely uplifted and blown into the field. The
tornado then snapped a few more hardwood trees before lifting just
northeast of Bean Rock Road.

.Morgan County/Neel Tornado...

Rating:                   EF-3
Estimated Peak Wind:      140 MPH
Path length /Statute/:    6.2 Miles
Path width /Maximum/:     175 Yards
Fatalities:               0
Injuries:                 0

Start date:               Nov 29 2016 
Start time:               840 PM CST
Start location:           Danville Road east of Isabel Mountain
Start Lat/Lon:            34.44058/-87.09132

End date:                 Nov 29 2016
End time:                 848 PM
End location:             Herring Road south of Sunset Drive
End_lat/lon:              34.50427/-87.01466

Survey Summary: The tornado first touched down along Danville
Road just east of the Lawrence County line. In this area, trees
were snapped and uprooted. Minor damage was noted to a shed here. 
The tornado then moved northeast and strengthened as it crossed
the intersection of Maddox Road and Johnson Chapel Road. Here 
hardwood trees were snapped near the base and a home suffered
significant roof and structural damage. 

Along northwest Maddox Road several homes sustained significant
structural damage. One home had the roof and a large section
of the wall blown out. The residents of the home rode the storm
out safely in the interior most hallway. Several power poles were
snapped at the base. Damage here was consistent with very high 
end EF-2 damage.

The tornado once again crossed Danville Road causing structural 
damage to several buildings including a multi-story home. Significant
roof uplift was noted in this location. A large industrial garage
in this area was also destroyed. A convenience store nearby suffered
damage, and the owner's family received warning alerts and took
shelter in an interior hallway to ride out the storm. 

The tornado then approached Neel School Road causing significant
damage in and around the Neel Volunteer Fire Department. The roof
was nearly completely taken off the fire department and large metal
trusses were bent at this facility. A nearby large building was 
obliterated and other well built structure had its roof and supports
taken off. 

As the tornado moved northeast, it cross Singleton Road impacting
more structures. Several homes sustained structural damage, mainly
roof damage. One very large building was completely destroyed with
another sustaining near collapse. The tornado then reached its
maximum intensity as it crossed Boys Ranch Road on the eastern edge
of Bogar Loop.

Here a home suffered complete roof loss and partial wall collapse.
An anchored mobile home was obliterated with the contents thrown
over 100 yards. A motor cycle repair shop that included an anchor
bolted large shop building was nearly wiped clean with motorcycles
thrown or rolled large distances. An SUV parked here was thrown and
then rolled about 75 yards. Damage here was consistent with lower
end EF-3 damage at 140 mph.

The tornado then crossed mostly rugged, hilly and rural terrain
downing trees as it began to slowly wind down in intensity. The
tornado then once again crossed Danville Road north of McCleskey
producing widespread tree damage. Here very large hardwood trees
were snapped near the based and uprooted. A home here sustained
damage to the roof and also damage due to falling trees. A large
shed/outbuilding here was destroyed.

As the tornado crossed Herring Road it produced damage to a roof on
a conventional home and also significant roof and structural damage
to a mobile home. On the northeast side of Herring Road minor tree
damage was noted as the tornado finally lifted.

.Crooked Oak/Underwood/Frankfort Tornado...

Rating:                   EF-2
Estimated Peak Wind:      115 MPH
Path length /Statute/:    11 Miles
Path width /Maximum/:     100 Yards
Fatalities:               0
Injuries:                 3

Start date:               Nov 29 2016 
Start time:               705 PM CST
Start location:           9 NNW Russellville
Start Lat/Lon:            34.5415/-87.9038 

End date:                 Nov 29 2016
End time:                 723 PM CST
End location:             7 SSW Tuscumbia
End lat/lon:              34.6272/-87.7439

Survey Summary: 

A supercell crossed over northern Franklin County Alabama and a
tornado developed and touched down near Lost Creek Road on the
northeast side of the Cedar Creek Reservoir. When it touched down, a
number of hardwood trees, softwood trees, and power poles were
snapped and a well built single family home lost a significant amount
of the roofing material and the one occupant of the home was injured
when the tornado occurred. The home also shifted with cracks noted on
the concrete undergirding of the home. This is where the tornado was
at its strongest (EF-2). The tornado quickly moved northeast snapping
10-20 trees and power poles as it moved towards the Frankfort
Community along County Road 88.

After crossing into Colbert County, more softwood and hardwood trees
were snapped causing damage to a single wide manufactured home and
car shed on Jones Road. More softwood and hardwood trees were snapped
as the tornado continued northeast across County Road 49. Then,
as the tornado continued to move northeast multiple softwood and
hardwood trees were snapped close to Underwood Mountain Road before
striking a single wide manufactured home. The single wide
manufactured home sustained damage consistent with EF-1 rating with
destruction of roof and walls leaving floor and undercarriage in
place. Two people within this home sustained injuries. Another single
family dwelling next to this manufactured home sustained damage
uplift of the roof damage while more snapped hardwood trees were
noted just to the northeast of these houses. This is also where the
tornado had the largest width of 100 yards. The tornado then lifted
shortly after this damage occurred.

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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