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Public Information Statement
Issued: 7:50 PM CDT Jun. 23, 2017 – National Weather Service

... NWS damage survey for June 22nd, 2017 tornado in West Jefferson
County...

.Overview...

Bands of showers and a few thunderstorms, rotating around the
remnants of Tropical Storm Cindy, produced flooding rainfall and
tornadic activity. One storm produced a tornado of EF-1 intensity in
western Jefferson County. A second storm produced a tornado debris
signature in western Shelby County, of which is scheduled to be
surveyed tomorrow (saturday, June 24th).

.Tornado #1 Fairfield tornado (jefferson county)...

*note: due to the arrival of thunderstorms, the survey team was not
able to completely assess the beginning of the tornado track,
specifically from Interstate 459, north to the Bessemer area. This
area will be looked at tomorrow (saturday, June 24th). For now, the
start of the tornado track is placed in the Brighton area, as an
early look revealed no damage south of this touchdown point.

Rating: EF-1
estimated peak wind: 110 mph
path length: 8.29 miles
path width: 255 yards
fatalities: none.
Injuries: 3.

Start date:june 22 2017
start time:12:21 CDT (preliminary)
start location:4 NNE Bessemer (preliminary)
start lat/lon:33.4282/-86.9397 (preliminary)

End date:june 22 2017
end time:12:38 CDT
end location:4 W Birmingham
end lat/lon:33.5317/-86.8670

Survey summary: National service meteorologists surveyed storm damage
in western Jefferson County, and found that the damage was
consistent with a tornado. There were three separate notable
increases in damage severity and/or density, likely indicating that
the tornadoe's funnel had a skipping/cycling characteristic as it
swayed from less to more intense.

The tornado touched down along 5th street north, between Highway 11
and Avenue a, where damage ranged from broken large limbs to uprooted
and snapped trees. The tornado then traveled northeast with a long
swath of damage centered along a track generally between Interstate
20/59 and Highway 11. Aside from continued uprooting of trees and
Downing of limbs, the first notable damage occurred just west of
Western Hills mall, where there was hefty damage to an express oil
change, Alabama abc store, and mini strip mall, along Dr. M.L.K.
Boulevard. Damage at this location was likely the result of a short-lived
vortex. Due to the assessment of damage indicators (affected
buildings), degree of damage (extent of damage to buildings, plus
consideration of construction quality and wind entry points), and
surrounding signals, the rating for this tornado has been reduced
from the preliminary rating of EF-2 to an EF-1.

The tornado continued knocking down trees as it moved northeast,
with some trees falling onto homes, resulting in severe
roof/structural damage. Tornadic winds also caused minor to moderate
roof damage ranging from missing shingles to sections of roof and
roof trim damaged, especially in neighborhoods adjacent to miles
College (to the south and northeast). Given a noticeable increase in
damage density, it's possible that the tornado briefly intensified in
this area. While there was an obvious increase in the amount of
uprooted trees, there was a large contribution from shallow root
systems and especially saturated soil from several-day's rain; thus,
given a lack of notable wind-driven damage to homes (which held in
EF-0, characteristic of shingle and roof trim damage), the overall
damage pattern didn't tip the scale for a small corridor of EF-1
rating.

Next, the tornado neared and crossed Interstate 20/59 where extent
of damage backed off, though some minor structural damage done to
the tire tech car Bay, and freeway Honda. Windows were also blown out
of a few cars at Honda dealership. An increase in the number of
uprooted trees was again observed surrounding Tuxedo Park on the
north side of Interstate 20/59, along with roof damage to a few
homes. Tornado damage became very sporadic and increasingly less
significant as the tornado neared Bankhead Highway, dissipating near
the csx transportation railways adjacent to Pratt Highway.


89^gsatterwhite


750 PM CDT Fri Jun 23 2017

... NWS damage survey for June 22nd, 2017 tornado in West Jefferson
County...

.Overview...

Bands of showers and a few thunderstorms, rotating around the
remnants of Tropical Storm Cindy, produced flooding rainfall and
tornadic activity. One storm produced a tornado of EF-1 intensity in
western Jefferson County. A second storm produced a tornado debris
signature in western Shelby County, of which is scheduled to be
surveyed tomorrow (saturday, June 24th).

.Tornado #1 Fairfield tornado (jefferson county)...

*note: due to the arrival of thunderstorms, the survey team was not
able to completely assess the beginning of the tornado track,
specifically from Interstate 459, north to the Bessemer area. This
area will be looked at tomorrow (saturday, June 24th). For now, the
start of the tornado track is placed in the Brighton area, as an
early look revealed no damage south of this touchdown point.

Rating: EF-1
estimated peak wind: 110 mph
path length: 8.29 miles
path width: 255 yards
fatalities: none.
Injuries: 3.

Start date:june 22 2017
start time:12:21 CDT (preliminary)
start location:4 NNE Bessemer (preliminary)
start lat/lon:33.4282/-86.9397 (preliminary)

End date:june 22 2017
end time:12:38 CDT
end location:4 W Birmingham
end lat/lon:33.5317/-86.8670

Survey summary: National service meteorologists surveyed storm damage
in western Jefferson County, and found that the damage was
consistent with a tornado. There were three separate notable
increases in damage severity and/or density, likely indicating that
the tornadoe's funnel had a skipping/cycling characteristic as it
swayed from less to more intense.

The tornado touched down along 5th street north, between Highway 11
and Avenue a, where damage ranged from broken large limbs to uprooted
and snapped trees. The tornado then traveled northeast with a long
swath of damage centered along a track generally between Interstate
20/59 and Highway 11. Aside from continued uprooting of trees and
Downing of limbs, the first notable damage occurred just west of
Western Hills mall, where there was hefty damage to an express oil
change, Alabama abc store, and mini strip mall, along Dr. M.L.K.
Boulevard. Damage at this location was likely the result of a short-lived
vortex. Due to the assessment of damage indicators (affected
buildings), degree of damage (extent of damage to buildings, plus
consideration of construction quality and wind entry points), and
surrounding signals, the rating for this tornado has been reduced
from the preliminary rating of EF-2 to an EF-1.

The tornado continued knocking down trees as it moved northeast,
with some trees falling onto homes, resulting in severe
roof/structural damage. Tornadic winds also caused minor to moderate
roof damage ranging from missing shingles to sections of roof and
roof trim damaged, especially in neighborhoods adjacent to miles
College (to the south and northeast). Given a noticeable increase in
damage density, it's possible that the tornado briefly intensified in
this area. While there was an obvious increase in the amount of
uprooted trees, there was a large contribution from shallow root
systems and especially saturated soil from several-day's rain; thus,
given a lack of notable wind-driven damage to homes (which held in
EF-0, characteristic of shingle and roof trim damage), the overall
damage pattern didn't tip the scale for a small corridor of EF-1
rating.

Next, the tornado neared and crossed Interstate 20/59 where extent
of damage backed off, though some minor structural damage done to
the tire tech car Bay, and freeway Honda. Windows were also blown out
of a few cars at Honda dealership. An increase in the number of
uprooted trees was again observed surrounding Tuxedo Park on the
north side of Interstate 20/59, along with roof damage to a few
homes. Tornado damage became very sporadic and increasingly less
significant as the tornado neared Bankhead Highway, dissipating near
the csx transportation railways adjacent to Pratt Highway.


89^gsatterwhite