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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Norman OK
1148 AM CDT Tue Apr 25 2017

OKZ004>048-050>052-TXZ083>090-261700-
Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield-
Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne-
Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain-
Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson-
Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton-
Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman-
Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay-
1148 AM CDT Tue Apr 25 2017

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western
north Texas.

.DAY ONE...Today and Tonight...

.Thunderstorms...
There is an Enhanced Risk of severe thunderstorms late this
afternoon and tonight across parts of Oklahoma.

Location...
The Enhanced Risk area is east of a line from Cushing to McLoud
and Cromwell. A Slight Risk area surrounds the Enhanced Risk and
is east of a line from Ponca City to Guthrie to Tuttle to Byars
and Calvin. A Marginal Risk surrounds the Slight Risk area and is
east of a Medford to Enid to Kingfisher to Lawton line and north
of a Lawton to Comanche to Ardmore to Atoka line.

Timing...
After 7 pm this evening.

Impacts...
Large hail up to the size of golf balls.
Damaging winds up to 70 mph.
Isolated Tornadoes

Discussion...
Scattered strong to severe thunderstorms are expected to develop
from southeast Kansas southwest into portions of north central
and central Oklahoma by early this evening. These storms will be
forming near a cold front that is expected to be located near the
I-44 corridor. Large hail and damaging winds will be the primary
hazards as storms move north of the boundary and become elevated.
However, any storm that remains near or just ahead of the the
cold front will have the potential to produce a tornado. This
activity is expected to move east out of the area by late evening.

Additional storm development is possible throughout the night
tonight near the cold front as it moves east and southeast. Storms
will most likely organize into lines as they move east or
northeast and continue to have a large hail and damaging wind
threat.

Other isolated to scattered weaker non-severe thunderstorms are
expected to occur across parts western north Texas and western and
northwestern Oklahoma tonight. Gusty winds would be the main
hazard with any of these storms.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...
Storm spotter groups and emergency management personnel across
the risk areas should prepare for severe weather operations
tonight.

.Heavy rainfall/flooding...
Locally heavy rainfall and small scale flooding may be possible
with thunderstorms tonight, mainly along and east of I-35.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

.Thunderstorms...
There is a Marginal Risk of severe thunderstorms across parts of
southeastern Oklahoma Wednesday morning where large hail and
damaging wind gusts along with locally heavy rainfall may
be possible.

Thunderstorm chances will return to northern Oklahoma Thursday
afternoon and night. No severe storms are expected Thursday
afternoon and night.

Severe thunderstorms will also be possible Friday afternoon
through Saturday. All severe hazards will be possible Friday
into Saturday.

.Heavy Rainfall...
Heavy rainfall and flooding will be possible Friday afternoon
through Saturday from showers and thunderstorms.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

$$

MBS/30



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