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Texas, Dallas

Areal Flood Advisory

Statement as of 6:21 PM CDT on April 27, 2015

Expires 9:15 PM EDT on April 27, 2015


The National Weather Service in Fort Worth has issued a

* Urban and Small Stream Flood Advisory for...
Dallas County in north central Texas...
Ellis County in north central Texas...

* until 815 PM CDT

* at 621 PM CDT... Doppler radar indicated a band of heavy rain that
extended from Grapevine to Mansfield to Grandview... moving east at
15 mph. This will cause Urban and Small Stream flooding in the
advisory area.

* Some locations that will experience flooding include...
Dallas... Garland... Irving... Grand Prairie... Mesquite...
Carrollton... Richardson... Rowlett... DeSoto... Cedar Hill...
Coppell... Duncanville... Lancaster... Waxahachie... Farmers Branch...
Balch Springs... University Park... Sachse... Ennis and Midlothian.

Precautionary/preparedness actions...

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where the water covers the roadway. Flood waters are usually
deeper than they appear. Just one foot of flowing water is powerful
enough to sweep vehicles off the Road. When encountering flooded
roads make the smart choice... turn around... dont drown.


Lat... Lon 3298 9654 3252 9653 3236 9645 3230 9644
      3206 9694 3226 9707 3254 9708 3255 9704
      3298 9702


58


Special Statement

Statement as of 6:53 PM CDT on April 27, 2015

Expires 8:45 PM EDT on April 27, 2015


... Special Weather Statement...

At 653 PM CDT... Doppler radar was tracking a line of strong
thunderstorms along a line extending from Ovilla to near Waxahachie
to near Maypearl... and moving east at 25 mph.

Half inch hail and winds in excess of 30 mph will be possible with
these storms.

Locations impacted include...
Dallas... Grand Prairie... Mesquite... Mansfield... DeSoto... Cedar
Hill... Duncanville... Lancaster... Waxahachie... Balch Springs...
Ennis... Midlothian... Seagoville... Glenn Heights... Red Oak...
Hutchins... Wilmer... Ovilla... Venus and Ferris.

This includes the following interstates...
Interstate 35e between mile markers 378 and 419.
Interstate 20 between mile markers 463 and 485.
Interstate 635 near mile marker 1.
Interstate 45 between mile markers 244 and 278.

Precautionary/preparedness actions...

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 15 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.


Lat... Lon 3205 9694 3226 9709 3255 9709 3255 9702
      3263 9704 3274 9652 3254 9653 3253 9651
      3248 9651 3244 9648 3241 9644 3235 9645
      3233 9643 3233 9638
time... Mot... loc 2353z 261deg 21kt 3256 9691 3242 9689 3228 9703


30

Public Information Statement

Statement as of 7:18 PM CDT on April 27, 2015


... NWS damage survey for the 4/26/15 tornadoes...

Supercell thunderstorms developed just south of Interstate 20 across
Eastland and Comanche counties... and moved east-northeast roughly
following the shape of Interstate 20 west of Interstate 35 to the
Interstate 35w corridor. These supercells produced very large hail
and several EF-0 tornadoes from Sunday afternoon through the late
evening hours of the day. The tornadoes primarily occurred in
sparsely populated areas... primarily damaging trees and producing
light damage to residences and businesses in their path. One of
the most notable facts of the evolution of this event was the fact
that one of the supercells became nearly stationary over Johnson
County for 2 to 3 hours. This nearly stationary storm produced 4
tornadoes as its updraft cycled over southern Johnson County. The
storm also produced a swath of straight line wind damage from
fisherman's Paradise in far southwest Johnson County to the
northeast near Rio Vista. The most destructive aspect of this storm
was likely the flash flooding it produced as this nearly stationary
storm dumped over 6 inches of rain over large portions of central
and eastern Johnson County. Many County roads across Johnson
County remained closed during the damage survey on Monday due to
the widespread flooding that began Sunday evening. There were
no serious injuries and no fatalities reported during this severe
weather event.

.Tornado number 1...

Rating: EF-0
estimated peak wind: 75 mph
path length /statute/: 1 mile
path width /maximum/: 50 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 3:33 PM CDT
start location: 12.5 NW Sidney

End date: 4/26/2015
end time: 3:35 PM CDT
end location: 11.5 NW Sidney

.Tornado number 2...

Rating: EF-0
estimated peak wind: 70 mph
path length /statute/: 0.7 miles
path width /maximum/: 50 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 4:15 PM CDT
start location: 1 NE Proctor

End date: 4/26/2015
end time: 4:16 PM CDT
end location: 2 NE Proctor

.Tornado number 3...

Rating: EF-0
estimated peak wind: 70 mph
path length /statute/: 1.2 miles
path width /maximum/: 70 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 4:30 PM CDT
start location: 3 SW Dublin

End date: 4/26/2015
end time: 4:31 PM CDT
end location: 2 SW Dublin

.Tornado number 4...

Rating: EF-0
estimated peak wind: 65 mph
path length /statute/: 0.2 miles
path width /maximum/: 25 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 5:38 PM CDT
start location: 5 WSW Glen Rose

End date: 4/26/2015
end time: 5:38 PM CDT
end location: 5 WSW Glen Rose

.Tornado number 5...

Rating: EF-0
estimated peak wind: 85 mph
path length /statute/: 2.5 miles
path width /maximum/: 200 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 9:53 PM CDT
start location: 10 W Rio Vista

End date: 4/26/2015
end time: 9:57 PM CDT
end location: 8 W Rio Vista

.Tornado number 6...

Rating: EF-0
estimated peak wind: 85 mph
path length /statute/: 2.2 miles
path width /maximum/: 200 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 10:33 PM CDT
start location: in Rio Vista

End date: 4/26/2015
end time: 10:36 PM CDT
end location: 2 NE Rio Vista

.Tornado number 7...

Rating: EF-0
estimated peak wind: 85 mph
path length /statute/: 5.4 miles
path width /maximum/: 200 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 11:01 PM CDT
start location: 2 E Rio Vista

End date: 4/26/2015
end time: 11:10 PM CDT
end location: 2 NE Rio Vista

Survey_summary: this tornado appeared to rotate counterclockwise
within a much larger... approximately 1.5 mile width... circulation
within the rotating updraft of the parent supercell thunderstorm.
The path took a nearly Horseshoe shape track as it looped in a
counterclockwise direction east of Rio Vista.

.Tornado number 8...

Rating: EF-0
estimated peak wind: 80 mph
path length /statute/: 1.8 miles
path width /maximum/: 75 yards
fatalities: 0
injuries: 0

Start date: 4/26/2015
start time: 11:16 PM CDT
start location: 2 E Rio Vista

End date: 4/26/2015
end time: 11:19 PM CDT
end location: 2 NE Rio Vista

Survey_summary: radar and damage survey evidence suggests that this
was a clockwise rotating tornado.

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 event and publication in
NWS storm data.


Weather Severe Map
Alabama - Flash Flood Watch , Record Report
Arizona - Record Report
Arkansas - Flood Warning , Flood Advisory , Public Information Statement
California - Public Information Statement
Colorado - Public Information Statement
Delaware - Public Information Statement
Florida - Flood Warning , Flash Flood Watch , Coastal Hazard Statement , Record Report
Georgia - Flood Warning
Hawaii - High Surf Advisory , Record Report
Idaho - Record Report
Illinois - Flood Warning
Indiana - Frost Advisory
Kansas - Frost Advisory , Public Information Statement
Kentucky - Flood Warning , Frost Advisory
Louisiana - Severe Thunderstorm Warning , Flood Warning , Flash Flood Watch , Flood Advisory , Record Report , Public Information Statement
Maine - Flood Warning
Maryland - Public Information Statement
Michigan - Frost Advisory
Mississippi - Flood Warning , Flash Flood Watch , Flood Advisory , Record Report
Missouri - Flood Warning , Flood Advisory , Public Information Statement
New Jersey - Public Information Statement
New Mexico - Public Information Statement
New York - Record Report
North Carolina - Frost Advisory , Special Statement
North Dakota - Flood Warning , Public Information Statement
Ohio - Frost Advisory
Oklahoma - Flood Warning , Record Report , Public Information Statement
Oregon - Record Report
Pennsylvania - Record Report , Public Information Statement
South Carolina - Flood Warning
Tennessee - Flood Warning , Flood Advisory , Frost Advisory
Texas - Areal Flood Warning , Flood Warning , Flood Warning, Areal Flood Warning , Areal Flood Advisory , Flash Flood Watch , Special Statement , Record Report , Public Information Statement
Utah - Record Report , Public Information Statement
Virginia - Frost Advisory , Special Statement
Washington - Record Report
West Virginia - Frost Advisory
Wyoming - Record Report , Public Information Statement