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Hazardous Weather Outlook

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

OKZ004>048-050>052-TXZ083>090-261015-
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-
514 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 a Slight Risk of severe thunderstorms tonight across
parts of Oklahoma.

Location...
The Slight Risk area is east of a line from Ponca City to
Stillwater to Chandler to Prague. 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
Coalgate line.

Timing...
After 8 pm this evening.

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

Discussion...
Isolated to numerous showers and thunderstorms are expected to
form near an approaching cold front this evening across parts of
north central or northeastern Oklahoma into southeastern Kansas.
Additional storm development is possible throughout the night
tonight near the cold front mainly near and east of I-35 where
capping will be weakest. Storms will most likely be organized into
lines as they move east or northeast. Due to strong shear and
abundant potential instability, some storms may be severe with
large hail as the main hazard. Storms may continue to form near
the front as it moves southward throughout the night into
southern Oklahoma by early Wednesday morning.

Additional isolated to scattered weaker non-severe thunderstorms
are expected to occur across parts of 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




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