Special Weather Statement, NWS Norman, OK

Area Forecast Discussion
National Weather Service Norman OK
1208 PM CDT Wed Jul 28 2021

...New AVIATION...

.SHORT TERM...
(Today and tonight)
Issued at 242 AM CDT Wed Jul 28 2021

Mid level moisture will continue to shift southward as the upper
ridge does the same throughout the day. A few diurnal isolated
showers and thunderstorms will be possible along and south of I-40
this afternoon but today will likely be the lowest coverage we've
seen over the past several days. Heat will be the main concern
along and east of I-35 as heat index values exceed 105. Afternoon
highs should be near, or even 1-2 degrees warmer than, yesterday
with very similar conditions present. Less cloud cover will also
mean higher WBGTs. The heat advisory remains in effect.

&&

.LONG TERM...
(Thursday through Tuesday)
Issued at 242 AM CDT Wed Jul 28 2021

Very few changes were made to the extended forecast. Still expect
the upper ridge to dominate the forecast into early weekend. The
warmest conditions appear to develop by Saturday afternoon ahead
of an approaching cold front. Several locations will likely exceed
100 F and corresponding heat index values should exceed the 105
criteria for the majority of locations along and east of I-35.

By early Sunday morning, an upper low will dig southward into the
Great Lakes and the cold front should start to impact at least
our northern zones. Chc to SChc PoPs will then spread southward
each day into early next week along the front. Temps will drop 1-3
degrees below avg behind the front thru Day 8. Our region will
remain within NNW flow aloft for several days so in addition to
the cool down there will also be at least low rain chances each
day thru the extended periods.

&&

.AVIATION...
(18Z TAFS)
Issued at 1202 PM CDT Wed Jul 28 2021

VFR conditions and light south/southeast winds are expected today.
Winds may become variable early Thursday morning across portions
of the area. There is a very low chance of an isolated shower or
thunderstorm over western north Texas late afternoon.

&&

.UPPER AIR...
Issued at 242 AM CDT Wed Jul 28 2021

An Upper Air flight is not planned for today.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  74  96  75  97 /   0   0   0   0
Hobart OK         72  98  74  97 /   0   0   0   0
Wichita Falls TX  74  99  75  99 /  10   0   0   0
Gage OK           71  98  72  97 /   0   0   0   0
Ponca City OK     73  99  74  97 /   0   0   0   0
Durant OK         74  99  75  99 /   0  10   0   0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Heat Advisory until 7 PM CDT this evening for OKZ007-008-012-013-
     018>020-024>032-039>043-045>048-050>052.

TX...None.
&&

SHORT TERM...01
LONG TERM....03
AVIATION...01

Hazardous Weather Outlook
National Weather Service Norman OK
1135 AM CDT Wed Jul 28 2021

OKZ004>048-050>052-TXZ083>090-291645-
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-
1135 AM CDT Wed Jul 28 2021

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

.DAY ONE...This Afternoon and Tonight...

.Thunderstorms...
Isolated thunderstorms may develop this afternoon across portions
of southern Oklahoma and north Texas. Wind gusts up to 50 mph and
brief heavy rainfall could accompany any stronger storms.

.Heat...
Hot and humid conditions will result in triple digit heat index
values across much of the area this afternoon. Take steps to
prevent heat related illnesses.

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

.Heat...
Hot and humid conditions will result in triple digit heat index
values across much of the region through Saturday afternoon.

.Thunderstorms...
Thunderstorm chances will return to the region Sunday and
continue through Tuesday.

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

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