Sunday, May 12, 2024

Updated Tornado Surveys From May 8-9 Event


 

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Public Information Statement...CORRECTED

National Weather Service Huntsville AL

914 AM CDT Sun May 12 2024


...NWS Damage Survey for 05/08/2024 Tornado Event Update #8...


Correction: Corrects Scottsboro Tornado wind speed from 90mph to 85mph

and lists tracks in chronological order.



.Poorhouse Hollow Tornado...


Rating:                 EF-1

Estimated Peak Wind:    105 mph

Path Length /statute/:  6.22 miles

Path Width /maximum/:   160 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             08:15 PM CDT

Start Location:         6 NE Ardmore / Lincoln County / TN

Start Lat/Lon:          35.0728 / -86.7742


End Date:               05/08/2024

End Time:               08:33 PM CDT

End Location:           8 SW Fayetteville / Lincoln County / TN

End Lat/Lon:            35.0648 / -86.6665


Survey Summary:

A National Weather Service Huntsville, AL and Lincoln Co. EMA

damage assessment team determined the damage in southwest Lincoln

Co. was consistent with an EF-1 tornado with max winds of 105 mph.


Damage indicators across the tornado path were mostly a

combination of hardwood trees and sporadic, minor structure

damage. The tornado likely touched down near the Blanche Rd area

between Philpot Rd and Cheatham Rd. Hardwood numerous trees were

observed to be uprooted or trunks snapped with one tree on a

house. The tornado continued across Randolph Hill Rd then caused

more hardwood tree damage across Sanders Rd. The tornado then

followed Dry Creek, south of Poorhouse Rd, where numerous hardwood

trees were snapped through Clay Jones Rd. More significant

damage, including minor roof damage to a single-family house and

more dense areas of tree snaps, occurred east of Clay Jones Rd.

This is the location where the max winds were recorded by the

survey team. The tornado likely lifted east of this residence in a

valley west of Drennon Rd.


Barron/Weber



.Brigadoon Tornado...


Rating:                 EF-3

Estimated Peak Wind:    136 mph

Path Length /statute/:  2.22 miles

Path Width /maximum/:   225 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             08:23 PM CDT

Start Location:         7 SE Rogersville / Limestone County / AL

Start Lat/Lon:          34.7499 / -87.1944


End Date:               05/08/2024

End Time:               08:30 PM CDT

End Location:           8 N Hillsboro / Limestone County / AL

End Lat/Lon:            34.7556 / -87.1561


Survey Summary:


A tornado touched down on the Tennessee River just east of where

the Elk River meets the Tennessee River and proceeded to move

inland at the Brigadoon neighborhood. Public photos and videos

confirm the tornado was over water before it moved on land. It

first caused damage at Inverness Place and this is where the homes

with the largest amount of damage was found. The home that had

the greatest damage had all exterior walls facing the river

collapsed, the roof of the main part of the house completely gone

and the two story four car garage was collapsed with the roof also

gone. The front of the house and interior rooms remained in tact.

This damage is correlated with low end EF-3 damage. Homes nearby

had substantial roof damage, damaged vehicles, and other various

exterior damage. Numerous large trees throughout the neighborhood

were uprooted or snapped. Moving further into the subdivision,

there was roof and exterior home damage to a lesser extent, fences

knocked over by other debris and broken windows. The tornado

lifted in a field outside of the subdivision.


Saari/Smith



.Woodfin Mill...


Rating:                 EF-1

Estimated Peak Wind:    105 mph

Path Length /statute/:  3.47 miles

Path Width /maximum/:   225 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             08:45 PM CDT

Start Location:         3 ENE Elkmont / Limestone County / AL

Start Lat/Lon:          34.9458 / -86.9254


End Date:               05/08/2024

End Time:               08:50 PM CDT

End Location:           2 WSW Ardmore / Limestone County / TN

End Lat/Lon:            34.9903 / -86.901


Survey Summary:

An NWS storm survey determined a tornado touched down west of New

Bethel Rd. The tornado uprooted and snapped several large softwood

trees and collapsed more than half of a private aircraft hangar.

The tornado continued north-northeast, uprooting more large trees

and snapping large branches near homes along Shipley Hollow Rd,

which is where the tornado reached its maximum intensity of 105 mph.

Minor roof damage displacing shingles on one single-family house

was observed. Sparse tree damage was observed where it was

concluded that the EF-1 tornado`s path ended just west of Old

Scrouge Rd. Special thank you to Limestone County EMA for their

assistance with this survey.


Carmer/Murphy/Magee



.Rainbow Mountain Tornado...


Rating:                 EF-0

Estimated Peak Wind:    85 mph

Path Length /statute/:  1.70 miles

Path Width /maximum/:   95 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             09:07 PM CDT

Start Location:         3 NNW Madison / Madison County / AL

Start Lat/Lon:          34.7411 / -86.7364


End Date:               05/08/2024

End Time:               09:11 PM CDT

End Location:           2 NW Madison / Madison County / AL

End Lat/Lon:            34.7366 / -86.7076


A National Weather Service Huntsville, AL survey team determined

the damage in neighborhoods in the vicinity of Rainbow Mountain in

Madison, AL was associated with a high-end EF-0 tornado with max

winds of 85 mph. The damage indicators used for this assessment

were a combination of hardwood and softwood trees. The tornado

appears to have touched down in the Hillchase Neighborhood on the

west-facing slope of of Rainbow Mountain. Several trees were

uprooted in this neighborhood and with at least two trees on

houses. The tornado continued east-southeast over Rainbow Mountain

and damaged more trees in the Highland Lakes neighborhood, on the

east-facing slope. Numerous trees were uprooted in this area with

a snapped trunk of at least one weaker, softwood tree. This

damage indicator was reduced to account for the condition of the

tree. The tornado then continued eastward across Slaughter Rd.

More trees were uprooted along the Mingo Rd area. Only minor

damage was observed in the Creekwood neighborhood, into Indian

Creek where the tornado likely lifted.


Barron



.Old Town Tornado...


Rating:                 EF-1

Estimated Peak Wind:    105 mph

Path Length /statute/:  2.38 miles

Path Width /maximum/:   600 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             09:28 PM CDT

Start Location:         3 NE Huntsville / Madison County / AL

Start Lat/Lon:          34.7377 / -86.5817


End Date:               05/08/2024

End Time:               09:32 PM CDT

End Location:           4 ENE Huntsville / Madison County / AL

End Lat/Lon:            34.7206 / -86.5468


Survey Summary:

An NWS storm survey determined a tornado touched down near Walker

Avenue NE. The initial touchdown point was indicated by snapping

of large branches and significant leaf litter. The tornado

continued generally southeast resulting in several large trees

uprooted between Walker Avenue NE and Randolph Avenue SE. This

track continued southeast just north of Governors Drive SE with

several additional trees both uprooted and snapped. Between Holmes

Avenue and near Sun Valley Road SE appears to be the location

where the tornado reached its peak intensity of EF-1 as indicated

by the various uprooted and snapped trees near SE California

Street and through the Maple Hill Cemetery. Further along this

southeast track, the tornado weakened slightly as it tracked north

of the Medical District with additional damage of large branches

down and leaf litter observed. While our last damage point is just

north of Governors Drive SE, radar data indicates the tornadic

debris signature continued southeast over Monte Sano. We have

requested additional drone and satellite data to further refine

the ending of this tornado track and supplement this survey. Some

tree damage was noted just south of Governors Drive SE however

this was identified as wind damage from inflow winds into the

supercell. Thank you to Madison County EMA for their assistance

during this survey.


Darish/Carmer/Magee



.Dug Hill and McMullen Cove Tornado ...


Rating:                 EF-2

Estimated Peak Wind:    122 mph

Path Length /statute/:  5.03 miles

Path Width /maximum/:   500 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             09:34 PM CDT

Start Location:         6 E Huntsville / Madison County / AL

Start Lat/Lon:          34.709 / -86.5081


End Date:               05/08/2024

End Time:               09:48 PM CDT

End Location:           3 W Gurley / Madison County / AL

End Lat/Lon:            34.7015 / -86.4245


Survey Summary:

A National Weather Service storm survey determined a tornado

touched down in the western end of Dug Hill Estates. The tornado

uprooted trees and caused roof damage to a home in the area of

initially observed damage. The tornado continued to uproot

hardwood trees and snapped a cedar tree in the subdivision before

moving eastward along the southern facing slope of the adjacent

ridge. No tree damage was observed along the ridge, but high-

resolution remote imagery may provide further information when

that is available. The tornado`s track became evident again just

to the east of the ridge along Dug Hill Road where hardwood trees

were snapped and uprooted. Snapped trees were observed along the

relatively steep sloped southern portion of Watson Grande Way. The

tornado continued just north of Little Cove Road. Siding on a

garage was peeled and there was also shearing of limbs off of tree

tops. The tornado then tracked generally east and continued to

distribute leaf litter and snap small branches before beginning to

peel some siding on single family homes. The tornado then

intensified and caused partial uplift of roofs on the eastern side

to four houses on Kenhurst Lane SE. The source of roof failure for

these homes came from the eastern portion of the roof. The tornado

was able to lift the roof from overhangs facing eastward and then

further lift additional portions of the roof. Roof construction

appeared primarily via nails and 2x4 with Simpson Strong Ties

noted along the base of the roof. Based on these points of

strongest intensity, the tornado was deemed a low-end EF-2.

Roofing material was lofted one block east on Abby Glen Way, where

there was also additional scattered shingle damage. No additional

damage was noted in this neighborhood. Beyond this neighborhood

to the east lies unaccessible rural areas which we could not

survey. Requested satellite imagery may shed more light on any

extensions needed for this track.


Guillet/White/Jones and Magee/Carmer/Darish



.Scottsboro Tornado...


Rating:                 EF-0

Estimated Peak Wind:    85 mph

Path Length /statute/:  2.09 miles

Path Width /maximum/:   440 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             10:34 PM CDT

Start Location:         3 NNW Scottsboro / Jackson County / AL

Start Lat/Lon:          34.6864 / -86.064


End Date:               05/08/2024

End Time:               10:37 PM CDT

End Location:           1 NNE Scottsboro / Jackson County / AL

End Lat/Lon:            34.6663 / -86.0369


Survey Summary:

An NWS Storm Survey determined a tornado touched down just west of

downtown Scottsboro. The initial touchdown point was indicated

by snapped tree branches on Old Larkinsville Rd. Scattered tree

damage was observed continuing generally southeast towards Highway

35. Limited infrastructure damage was found along Highway 35

including the peeling of metal roofing and siding. Between Highway

35 and Parks Ave several trees were found uprooted, snapped, and

with loss of limbs. Due to the limited infrastructure damage found

on Highway 35 and the uprooted trees, the maximum intensity of

this tornado was deemed an EF-0. Thank you to Jackson County EMA

and the Scottsboro Fire Department for their assistance during

this survey.


Ravenscraft/Amin/Darish



.Henagar Tornado...


Rating:                 EF-3

Estimated Peak Wind:    140 mph

Path Length /statute/:  12.34 miles

Path Width /maximum/:   880 yards

Fatalities:             0

Injuries:               7


Start Date:             05/08/2024

Start Time:             10:57 PM CDT

Start Location:         3 S Pisgah / Jackson County / AL

Start Lat/Lon:          34.6407 / -85.8578


End Date:               05/08/2024

End Time:               11:24 PM CDT

End Location:           2 NNW Hammondville / DeKalb County / AL

End Lat/Lon:            34.5998 / -85.6497


Survey Summary:

The tornado touched down on Hwy 71 in Jackson County, snapping

hard and softwood trees to begin its path. The tornado continued

between County Road 425 and 322, producing minor damage to the

roof of a small farm building. The tornado then overturned a

camper and injured two people downstream along County Road 422.

Also at this location, a well-built home was partially destroyed.

A mobile home was moved off its foundation here as well, with a

third of the roof of a hay barn and a horse trailer destroyed.

Projectiles were found in the field across the street from this

home, with 2x4s impaled a foot to 18" in the ground at this

location. Further south and east along State Road 40, large 100+

year old oak trees that were 4-5 foot in diameter were blown down

onto a house, collapsing two exterior walls. Windows were sucked

out at this location as well prior to the trees falling when the

tornado passed just north of the house. Up the street, a well-

built home sustained major damage when the tornado ripped the

garage off of the house and sheared it to the north and east into

the rest of the dwelling. It was at this location that the highest

wind speed was rated for this tornado, 135 mph, which is the top

windspeed for an EF-2 tornado. Had anchor bolts been found in the

foundation anchoring of the walls (in lieu of the nails that were

found attaching the walls to the foundation), the tornado would

have been upgraded to an EF-3 tornado. What was left of the house

was in relatively good condition, all things considered, and it

was noted that the attic framing was anchored with strongties, and

so the roof remained intact over a good portion of the house

otherwise. At this point, the tornado was likely at its widest

point, measuring 1.13 miles wide.


NWS representatives returned to the track the following day to

access several roadways that were completely blocked from

widespread fallen trees south of State Road 40. Surveyors found

damage indicators and degrees of damage consistent with EF3

(140 mph) tornado damage. The tornado was the strongest at this

point along the path. Along County Road 125, a well built shop

building was completely destroyed. The metal building structure

was well-anchored with H-beams anchored with large bolts and

plates at the bases to the foundation. The bolts were snapped and

severely bent, along with the plates. On one corner, a large 4-5

foot section of the foundation was ripped off the ground and

strewn about 10 feet away with the column anchoring still intact.

More shocking was the 20,000 pound 18-wheeler cab that was tossed

more than 150 yards into the field across CR 125. Other nearby

semi-trailers that were parked on the property were strewn in the

same direction as well, though most only were shifted 50-100 feet.


The tornado continued snapping and uprooting softwood trees over

the relatively rural landscape along Melton Drive and Elliot

Road. It was at this location where the road was impassable due to

numerous trees covering the roadway, and it was actively being

removed during our survey. Further east/southeast, the tornado

moved across the intersection of Culver/Keith/Lacey Roads,

snapping and uprooting more softwood trees. The tornado crossed

State Road 40, peeling back tin on several chicken houses between

SR40 and Valley Road, causing the structural integrity of one of

the houses to be compromised. Additional softwood trees were

uprooted and snapped near the intersection of County Road 714 and

120 along State Road 40 as well, with the loss of several roof

panels to a shed structure at a house located here.


Continuing on toward the latter part of the tornado track, a large

oak tree fell onto a house on CR 665 and 670. The tornado skipped

along uprooting and snapping more hard and softwood trees between

this location and the terminal point on Hwy 117 on the cusp of

Hammondville, mainly in rural Dekalb County. No additional damage

points were found beyond Hwy 117 and Interstate 59.


Thanks to both Jackson and Dekalb County EMA Offices, as well as

several Fire Departments in both counties for the support and

aid in completing these surveys.


Ravenscraft/Amin/Darish



.Brooks Crossroads Tornado...


Rating:                 EF-1

Estimated Peak Wind:    107 mph

Path Length /statute/:  1.96 miles

Path Width /maximum/:   275 yards

Fatalities:             0

Injuries:               0


Start Date:             05/09/2024

Start Time:             12:02 AM CDT

Start Location:         3 NNW Sylvania / DeKalb County / AL

Start Lat/Lon:          34.605 / -85.812


End Date:               05/09/2024

End Time:               12:05 AM CDT

End Location:           3 NNE Sylvania / DeKalb County / AL

End Lat/Lon:            34.5953 / -85.7799


Survey Summary:

This tornado was associated with the second supercell that moved

across portions of Jackson and Dekalb Counties toward Brooks

Crossroads. Thankfully, this tornado went south of the EF-3 track

through Henagar, and was generally more weak and brief. This

tornado touched down on County Road 122, snapping and uprooting

hard and softwood trees just south of the Jackson/Dekalb County

border. The tornado continued moving to the east/southeast,

snapping and uprooting widespread trees along CR 122, consistent

with EF-1 damage and 107 mph winds in Brooks Crossroads. Though

there were numerous softwood trees that were damaged, notably,

there were several large 4-6 foot in diameter oak trees that were

likely 100 years or older that were snapped and uprooted. This led

to the slightly higher rating of the tree damage. Any structural

damage along this path was from trees that were felled by the

tornado, with minimal roof loss noted in this location.


Ravenscraft/Amin/Darish


&&


EF Scale: The Enhanced Fujita Scale classifies tornadoes into the

following categories:


EF0.....65 to 85 mph

EF1.....86 to 110 mph

EF2.....111 to 135 mph

EF3.....136 to 165 mph

EF4.....166 to 200 mph

EF5.....>200 mph


NOTE:

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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Public Information Statement

National Weather Service Nashville TN

319 PM CDT Fri May 10 2024


...NWS Damage Survey for 05/08/24 Tornado Event Update 1...


.Update... Added Cedar Hill/Springfield EF-1 Tornado, and the

Prospect EF-2 Tornado. Also added additional details to the

Columbia EF-3 Tornado and the Christiana EF-0 Tornado.


.Cedar Hill/Springfield EF1 Tornado...


Rating:                 EF-1

Estimated Peak Wind:    90 mph

Path Length /statute/:  4.88 miles

Path Width /maximum/:   150 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             02:40 PM CDT

Start Location:         8 SSW Adams / Montgomery County / TN

Start Lat/Lon:          36.4837 / -87.1442


End Date:               05/08/2024

End Time:               02:51 PM CDT

End Location:           6 SSW Cedar Hill / Robertson County / TN

End Lat/Lon:            36.4661 / -87.0629


Survey Summary:

A very weak tornado touched down just east of I 24 at the end of

Mayo Rd in a wooded area.  There was evidence of topping and

twisting of a few trees. Along Stroudville Rd at Tony Darden Rd,

there were 3 trees down that had been cleaned up by highway

department. Witnesses said they saw a much great funnel aloft and

only one small part was touching the trees. When the tornado got to

Highway 256 and Ridge Rd it increased in speed and width and turned

south southeastward. A barn had panels and sheeting torn off and 2

trees were uprooted off 256. Along Ridge road, 3 homes had shingle

and roofing material loss, along with gutter and soffit damage. One

home had 14 trees snapped or uprooted, and one fell on their home.

Along Ridge Rd, drone photography showed dozens and dozens of trees

topped, twisted, uprooted and snapped. An older 20 by 40 barn was

picked up and thrown off to a northeasterly direction, with metal

sheeting thrown well up into the trees and wrapped around the tree.

The tornado took a hard turn back to the east at the very end of the

track. The tornado topped twisted and uprooting trees. It also

damaged metal sheeting on a barn near Ridge Road.


.Columbia EF-3 Tornado...


Rating:                 EF-3

Estimated Peak Wind:    140 mph

Path Length /statute/:  12.94 miles

Path Width /maximum/:   900 yards

Fatalities:             1

Injuries:               1


Start Date:             05/08/2024

Start Time:             05:37 PM CDT

Start Location:         3 ESE Columbia / Maury County / TN

Start Lat/Lon:          35.6091 / -87.0004


End Date:               05/08/2024

End Time:               06:07 PM CDT

End Location:           6 WNW Chapel Hill / Marshall County / TN

End Lat/Lon:            35.672 / -86.789


Survey Summary:

The tornado touched down along the Duck River east of Columbia and

moved northeast causing tree damage and minor structure damage on

Mount Olivet Rd. Multiple homes received damage along Cothran Rd

and Cranford Hollow Rd before the tornado moved north of Highway

412. More intense damage began to occur on Old Highway 99 and

Blackburn Lane where large sections of roofs were

removed and hundreds of trees were snapped or uprooted. The tornado

reached its maximum strength along Blackburn Rd and Lasea Rd where

large transmission power trusses were collapsed, a house was

destroyed with only small interior walls still standing, and a

mobile home was swept away. The tornado continued northeast damaging

additional homes before crossing I-65 near mile marker 47. More

homes were damaged along Rally Hill Cutoff Rd and Kedron Rd. The

tornado crossed Highway 431 near Kedron Rd before lifting just past

the Maury/Marshall County line.


.Prospect EF-2 Tornado...


Rating:                 EF-2

Estimated Peak Wind:    115 mph

Path Length /statute/:  6.58 miles

Path Width /maximum/:   600 yards

Fatalities:             0

Injuries:               1


Start Date:             05/08/2024

Start Time:             07:50 PM CDT

Start Location:         6 ENE Lester / Giles County / AL

Start Lat/Lon:          35.0223 / -87.0382


End Date:               05/08/2024

End Time:               08:00 PM CDT

End Location:           3 SSW Elkton / Giles County / TN

End Lat/Lon:            35.0211 / -86.9222


Survey Summary:

The tornado touched down along case road southwest of Prospect where

some trees were damaged. As the tornado continued east, two homes

sustained roof damage, and a manufactured home was completely

removed from its base and destroyed. Additional structures were

damaged along Case road as the tornado headed east, then damaged

some metal outbuildings off of Bethel Prospect Road south of the

town of Prospect. Additional trees and minor roof damage was found

off of Circle Drive and Veto Road southeast of Prospect. Some larger

tree damage was found along El Reed Road, and further east along the

Elk River before dissipating.


.Christiana EF-0 Tornado...


Rating:                 EF-0

Estimated Peak Wind:    80 mph

Path Length /statute/:  3.11 miles

Path Width /maximum/:   125 yards

Fatalities:             0

Injuries:               0


Start Date:             05/08/2024

Start Time:             06:31 PM CDT

Start Location:         9 ESE Eagleville / Rutherford County / TN

Start Lat/Lon:          35.6942 / -86.5031


End Date:               05/08/2024

End Time:               06:36 PM CDT

End Location:           9 NW Bell Buckle / Rutherford County / TN

End Lat/Lon:            35.6975 / -86.4491


Survey Summary:

An EF-0 tornado touched down near the intersection of Threet Rd and

New Zion Rd. The tornado moved east along New Zion Rd snapping large

branches off from hardwood trees. Trees were uprooted near the

intersection of Midland Rd and Jones Rd. The tornado continued east

along Jones Rd snapping large limbs and uprooting a few trees

before the tornado transitioned to straight line winds near the Gray

Fox neighborhood.


&&


EF Scale: The Enhanced Fujita Scale classifies tornadoes into the

following categories:


EF0.....65 to 85 mph

EF1.....86 to 110 mph

EF2.....111 to 135 mph

EF3.....136 to 165 mph

EF4.....166 to 200 mph

EF5.....>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.



$$


Barnwell/Hurley/Mueller


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