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Public Information Statement

Statement as of 9:05 PM CDT on March 29, 2017

Expires 2:15 AM EDT on March 30, 2017



... NWS damage survey for March 29, 2017 metroplex tornadoes and damaging winds...
... Corrected start and end times of Lewisville tornado...

.Overview... National Weather Service damage survey crews investigated several
areas of damage from winds and possible tornadoes early on the morning of March 29th.
While additional surveys will continue over the next several days, as of this evening, two
tornadoes have been confirmed.

In Rockwall, the damage survey crew determined a downburst caused the most significant
damage of the morning. This downburst produced a wide swath of damage near the intersection
of FM 1141 and FM 552. In this area, the downburst destroyed three homes, as winds near 95
mph caused significant damage to roofing materials, failure of garage doors, and broken
windows in the homes. Debris from these homes produced a damage path to the east and northeast,
causing additional damage to several other homes.

.Lewisville tornado...

Rating: EF-1
estimated peak wind: 85-90 mph
path length /statute/: 1.5 miles
path width /maximum/: 130 yards
fatalities: 0
injuries: 0

Start date: Mar 29 2017
start time: 231 am CDT
start location: 2.4sw Lewisville / Denton / TX
start lat/lon: 33.03 / -97.03

End date: Mar 29 2017
end time: 233 am CDT
end location: 1.2nw Lewisville / Denton / TX
end lat/lon: 33.05 / -97.01

Survey_summary: widespread wind damage was noted across the southern
portions of Denton County, including several areas of tree damage in
the city of Flower Mound. A large area of sustained winds of 75 to 80
mph was noted across portions of Flower Mound as well as
soutcorrectedhwestern Lewisville. There was a narrow band of
convergent damage and debris which began near Fox Avenue and
boxwood drive in Lewisville.

The survey crew determined a tornado occurred in this area, moving north
and northeast damaging approximately a dozen homes in Lewisville, portions
of the Municipal center, and dropping debris as far northeast as I-35e.
This tornado produced damage consistent with an EF-1 wind speeds, with three
homes losing a substantial portion of roofing materials and roof decking.
The remainder of the homes in Lewisville had damage consistent with 75 to 80
mph winds.

.North Fort Worth/Keller/Southlake tornado...

Rating: EF-0
estimated peak wind: 85 mph
path length /statute/: 10.75 miles
path width /maximum/: 500 yards
fatalities: 0
injuries: unknown

Start date: mar_29_2017
start time: 210 am CDT
start location: 7.25n downtown Fort Worth / Tarrant / TX
start lat/lon: 32.8600 / -97.3200
end date: mar_29_2017
end time: 222 am CDT
end location: 1.70w Southlake / Tarrant / TX
end lat/lon: 32.94 / -97.1600

Survey_summary: the team found damage consistent with an EF-0 tornado,
with peak winds of 85 mph. Tornado damage was first encountered along
western center Boulevard, west of I-35w in north Fort Worth. Here, a
series of large Oak Tree limbs were snapped, and some superficial damage
to some commercial buildings was observed. The tornado crossed I-35w
north of the western center Blvd overpass, producing roof damage to
multiple apartment complexes on the east side of the Interstate.
Damage continued in a northeast direction, most notably snapping
power poles and impacting the roof of a large retail store near the
corner of north Tarrant parkway and U.S. 377 in far southwest Keller.
The path of the tornado was at its widest in this area, approaching
500 yards in width. Damage consistent with 85 mph winds was observed
near this intersection, with multiple indications of rotation. The
tornado continued through Keller, weakening and narrowing in width
as it crossed Davis Boulevard and entered western Southlake. The
magnitude and nature of damage over this portion of the path was
consistent with a 65-85 mph tornado. No appreciable damage was found
beyond FM Road 1709 and Shady Oaks drive, and the tornado is believed
to have dissipated near this location.

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 200mph
EF5... violent... >200mph

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


Bradshaw/Fox/Godwin/Ryan

905 PM CDT Wed Mar 29 2017


... NWS damage survey for March 29, 2017 metroplex tornadoes and damaging winds...
... Corrected start and end times of Lewisville tornado...

.Overview... National Weather Service damage survey crews investigated several
areas of damage from winds and possible tornadoes early on the morning of March 29th.
While additional surveys will continue over the next several days, as of this evening, two
tornadoes have been confirmed.

In Rockwall, the damage survey crew determined a downburst caused the most significant
damage of the morning. This downburst produced a wide swath of damage near the intersection
of FM 1141 and FM 552. In this area, the downburst destroyed three homes, as winds near 95
mph caused significant damage to roofing materials, failure of garage doors, and broken
windows in the homes. Debris from these homes produced a damage path to the east and northeast,
causing additional damage to several other homes.

.Lewisville tornado...

Rating: EF-1
estimated peak wind: 85-90 mph
path length /statute/: 1.5 miles
path width /maximum/: 130 yards
fatalities: 0
injuries: 0

Start date: Mar 29 2017
start time: 231 am CDT
start location: 2.4sw Lewisville / Denton / TX
start lat/lon: 33.03 / -97.03

End date: Mar 29 2017
end time: 233 am CDT
end location: 1.2nw Lewisville / Denton / TX
end lat/lon: 33.05 / -97.01

Survey_summary: widespread wind damage was noted across the southern
portions of Denton County, including several areas of tree damage in
the city of Flower Mound. A large area of sustained winds of 75 to 80
mph was noted across portions of Flower Mound as well as
soutcorrectedhwestern Lewisville. There was a narrow band of
convergent damage and debris which began near Fox Avenue and
boxwood drive in Lewisville.

The survey crew determined a tornado occurred in this area, moving north
and northeast damaging approximately a dozen homes in Lewisville, portions
of the Municipal center, and dropping debris as far northeast as I-35e.
This tornado produced damage consistent with an EF-1 wind speeds, with three
homes losing a substantial portion of roofing materials and roof decking.
The remainder of the homes in Lewisville had damage consistent with 75 to 80
mph winds.

.North Fort Worth/Keller/Southlake tornado...

Rating: EF-0
estimated peak wind: 85 mph
path length /statute/: 10.75 miles
path width /maximum/: 500 yards
fatalities: 0
injuries: unknown

Start date: mar_29_2017
start time: 210 am CDT
start location: 7.25n downtown Fort Worth / Tarrant / TX
start lat/lon: 32.8600 / -97.3200
end date: mar_29_2017
end time: 222 am CDT
end location: 1.70w Southlake / Tarrant / TX
end lat/lon: 32.94 / -97.1600

Survey_summary: the team found damage consistent with an EF-0 tornado,
with peak winds of 85 mph. Tornado damage was first encountered along
western center Boulevard, west of I-35w in north Fort Worth. Here, a
series of large Oak Tree limbs were snapped, and some superficial damage
to some commercial buildings was observed. The tornado crossed I-35w
north of the western center Blvd overpass, producing roof damage to
multiple apartment complexes on the east side of the Interstate.
Damage continued in a northeast direction, most notably snapping
power poles and impacting the roof of a large retail store near the
corner of north Tarrant parkway and U.S. 377 in far southwest Keller.
The path of the tornado was at its widest in this area, approaching
500 yards in width. Damage consistent with 85 mph winds was observed
near this intersection, with multiple indications of rotation. The
tornado continued through Keller, weakening and narrowing in width
as it crossed Davis Boulevard and entered western Southlake. The
magnitude and nature of damage over this portion of the path was
consistent with a 65-85 mph tornado. No appreciable damage was found
beyond FM Road 1709 and Shady Oaks drive, and the tornado is believed
to have dissipated near this location.

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 200mph
EF5... violent... >200mph

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


Bradshaw/Fox/Godwin/Ryan


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