Special Weather Statement, NWS Norman, OK

Area Forecast Discussion...UPDATED
National Weather Service Norman OK
812 PM CDT Wed Aug 9 2017

.UPDATE...
Area of showers/storms in N OK and S KS is expected to continue to
move SE across portions of the area this evening. Increased PoPs
to account for this activity. A few of the storms in N OK could be
strong to severe.

&&

.PREV DISCUSSION... /issued 634 PM CDT Wed Aug 9 2017/

AVIATION...
0Z TAFs - Several rounds of scattered showers/storms are possible
across portions of the area during this TAF period with the
highest chances in northern Oklahoma. Chances are currently too
low at some sites for mention in TAF. Gusty winds and heavy rain
will be possible with the storms.

PREV DISCUSSION... /issued 347 PM CDT Wed Aug 9 2017/

DISCUSSION...
Thunderstorms persist over northern Oklahoma and will continue
into the early evening. This is the first of what may be at least
two waves of storms. HRRR suggests the possibility of another
round of storms moving into northwest Oklahoma this evening,
although other models aren't as aggressive with this. Then there
is a higher chance of storms in the morning hours with storms
moving in from Colorado and/or western Kansas. An even higher
chance of storms returns late tomorrow afternoon or tomorrow
evening as a storm complex is expected to develop in southern
Kansas or near the Oklahoma border and moving south/southeast
through the area with the highest precipitation chances northeast.
With the surface boundary lurking north of the area, west-
northwest flow aloft, and various shortwaves moving into the upper
Midwest and central Plains, it looks like we will be in a pattern
of multiple rounds of convection over the next few days with storm
complexes moving into Oklahoma from the north. It is still tricky
to determine specific geography too far in advance, but we do
appear to be in a wet pattern, especially by August standards.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  70  92  72  88 /  30  20  60  50
Hobart OK         71  96  74  94 /  20  20  40  30
Wichita Falls TX  71  97  76  98 /  10  10  20  20
Gage OK           67  92  68  85 /  40  30  70  30
Ponca City OK     69  88  70  85 /  70  30  70  40
Durant OK         70  92  75  93 /  10  10  20  40

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...None.
TX...None.
&&

25/25

Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
748 PM CDT Wed Aug 9 2017

OKZ004>048-050>052-TXZ083>090-110100-
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-
748 PM CDT Wed Aug 9 2017

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

.DAY ONE...Rest of Tonight...

.Heavy rain/flooding...
Showers and thunderstorms may produce locally heavy rainfall
and flooding tonight, mainly across northern Oklahoma.

.Thunderstorms...
Scattered thunderstorms will remain possible across portions of
northern and central Oklahoma tonight. A few of the storms, mainly
in northern Oklahoma, this evening could become strong to severe
with hail up to the size of half dollars and wind gusts to 60 mph
possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

.Heavy Rain/Flooding...
Thunderstorms may produce heavy rainfall across the area
Thursday through early next week. Several inches of rainfall
may occur across parts of Oklahoma which may result in flooding.

.Thunderstorms...
Thunderstorms will be possible each day. A few strong to severe
thunderstorms with damaging winds will be possible at times,
especially Thursday night across northern Oklahoma, but
widespread significant severe weather is not expected.

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

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
835 PM CDT WED AUG 9 2017

OKZ006-100200-
Alfalfa OK-
835 PM CDT WED AUG 9 2017

...SIGNIFICANT WEATHER ADVISORY FOR northern Alfalfa County Until 900
PM CDT...

AT 833 PM CDT, a strong thunderstorm was located near Kiowa, moving
southeast at 25 MPH.

HAZARDS INCLUDE...
Hail up to one-half inch diameter...
Wind gusts to 40 MPH...
Minor flooding in areas of poor drainage...

Locations impacted include...
Burlington, Amorita, Byron and Driftwood.

LAT...LON 3700 9822 3687 9812 3680 9840 3694 9854
      3700 9854
TIME...MOT...LOC 0133Z 310DEG 23KT 3700 9844

WR

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
903 PM CDT WED AUG 9 2017

OKZ007-008-100245-
Kay OK-Grant OK-
903 PM CDT WED AUG 9 2017

...SIGNIFICANT WEATHER ADVISORY FOR southwestern Kay and southeastern
Grant Counties Until 945 PM CDT...

AT 902 PM CDT, a strong thunderstorm was located 4 miles southeast of
Medford, moving southeast at 25 MPH.

HAZARDS INCLUDE...
Wind gusts to 50 MPH...
Minor flooding in areas of poor drainage...

Locations impacted include...
Medford and Lamont.

This includes Interstate 35 near mile marker 210.

LAT...LON 3689 9766 3662 9734 3659 9766 3675 9780
TIME...MOT...LOC 0202Z 311DEG 21KT 3677 9766

WR

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1040 PM CDT WED AUG 9 2017

OKZ018-100415-
Kingfisher OK-
1040 PM CDT WED AUG 9 2017

...SIGNIFICANT WEATHER ADVISORY FOR northwestern Kingfisher County
Until 1115 PM CDT...

AT 1037 PM CDT, a strong thunderstorm was located 9 miles south of
Ames, moving southeast at 15 MPH.

HAZARDS INCLUDE...
Wind gusts to 40 MPH...

Locations impacted include...
Loyal and Lacey.

LAT...LON 3601 9791 3595 9817 3609 9821 3612 9821
      3617 9810 3617 9804
TIME...MOT...LOC 0337Z 322DEG 15KT 3611 9814

WR