883
FXUS64 KOUN 301814
AFDOUN

Area Forecast Discussion
National Weather Service Norman OK
114 PM CDT Wed Jul 30 2025

...New NEAR TERM, SHORT TERM...

.KEY MESSAGES...
Updated at 112 PM CDT Wed Jul 30 2025

 - Cooler temperatures are in store for Thursday and into the
weekend.

 - Periods of showers and thunderstorms expected from this
   evening through the weekend.

&&

.NEAR TERM...
(Rest of today and tonight)
Issued at 112 PM CDT Wed Jul 30 2025

A pre-frontal trough extends across NW parts of the fa early this
afternoon with a cool front further NW extending from the western OK
panhandle across central KS. This front is expected to move into
northern parts of the fa later this afternoon/evening. The front is
expected to continue to move southward tonight. Models show
scattered showers/storms developing near/behind the front late
afternoon/evening into Thursday. Widespread severe weather is not
expected but can not completely rule out a few storms getting strong
enough to produce strong wind gusts late this afternoon/evening.
CAPE values of 1000-2000 J/kg is expected with DCAPE in northern
parts of the area already in the 1000-1500 range. No to very little
vertical wind shear is expected so storms would be slow
moving/stationary. With this in mind, locally heavy rain/flooding
could be possible with some of the storms. Any severe weather
potential would diminish later this evening but the locally heavy
rain potential could continue overnight.

Temperatures early this afternoon have already climbed into the mid
90s to low 100s. The hot and humid conditions are expected to
continue the rest of the afternoon with triple digit heat index
values across parts of the area. The heat advisory will continue
through 8 pm. With the cool front across the area, some locations
could have low temperatures a few degrees cooler than last night but
no significant drop is expected tonight.


&&

.SHORT TERM...
(Thursday through Friday night)
Issued at 112 PM CDT Wed Jul 30 2025

The cool front is expected to continue to move south Thursday. There
is some uncertainty on how far south and timing of the front which
would have an impact on temperatures. However, right now, models
show the front making it to the Red River Valley vicinity at least
which would mean most, if not all of the fa, will be north of the
front. Forecast highs are expected to range from the 80s in northern
OK to upper 90s/around 100 along the Red River. If the front is
slower, temperatures along the Red River will likely be hotter than
currently forecast. Cooler temperatures are expected across the fa
Thursday night with lows ranging from the mid 60s in NW OK to the
low/mid 70s in southern parts of the fa.

Models show shower/storm chances continuing, mainly north of the
front Thursday into Friday. However, some of the CAMs also show
scattered storms developing along the front Thursday
afternoon/evening in southern parts of the fa. If these storms
develop, gusty winds could be possible with the stronger storms. Of
course, the development along the front may or may not affect
southern parts of the fa tomorrow depending on where the front ends
up tomorrow afternoon.

Friday is expected to be much more pleasant with some relief from
the heat. Below normal temperatures are expected with highs ranging
from the 80s to low 90s across the area. Even cooler low
temperatures expected Friday night with lows in the 60s to around 70
across the fa.

&&

.LONG TERM...
(Saturday through Tuesday)
Issued at 1257 AM CDT Wed Jul 30 2025

The cool start to August will continue into this weekend. It
actually looks like we`ll see weak split flow develop in western
North America, with a weak subtropical jet moving onshore from
California and squashing the ridge down into northern Mexico. As
this jet reaches the Front Range Saturday afternoon and evening,
it`s a safe bet to assume we see storms develop in the northwest
flow regime off of the high terrain. Those storms could organize
into an MCS and move into northern Oklahoma Saturday night into
Sunday morning.

The ridge will look to move back east a little bit on Sunday - not
close enough to massively influence our temperatures (except for
western north Texas near the Caprock, which could quickly rebound to
near 100), but close enough to bring a hefty slug of northerly flow
aloft into the area. Storm chances may end up being more widespread
during this period thanks to the increased vertical wind shear.

The ridge will edge ever closer to our area Monday and Tuesday.
Interestingly, a trough will become entrenched near the Great Lakes
during this period, fostering unseasonably strong 500 mb flow in the
central part of the country. This adds a whole lot of uncertainty to
this portion of the long-range forecast - if the ridge is further
west, we could continue with near-average temperatures and storm
chances. If it gets further east, another heat wave could commence
as soon as Monday. Regardless, the amplification of the pattern
suggests that the sensible weather will be impactful.

Meister

&&

.AVIATION...
(18Z TAFS)
Issued at 1200 PM CDT Wed Jul 30 2025

VFR category is expected at most terminals through the period.
Generally light and variable winds continue ahead of a slow-
approaching surface front, currently near the Oklahoma/Kansas
border. The front will continue to slowly advance southward into
portions of Oklahoma (and eventually north Texas) into early
Thursday, offering a sustained northerly wind shift in its wake.

Widely scattered rain/thunder will also be possible near and
behind the front by late this afternoon, continuing into early
Thursday. Gusty and erratic winds and brief reductions in
visibility will be possible near thunderstorms. PROB30 mentions
have been added/maintained to account for this threat across
mainly northern Oklahoma.

Safe travels!

Ungar

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  75  91  70  82 /   0  20  30  20
Hobart OK         73  94  70  88 /  10  20  30  20
Wichita Falls TX  74  99  74  92 /   0  10  20  10
Gage OK           67  83  65  83 /  50  30  30  20
Ponca City OK     73  85  68  82 /  20  30  30  20
Durant OK         76  99  74  91 /   0  20  20  30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Heat Advisory until 8 PM CDT this evening for OKZ005>008-011>013-
     017>020-024>032-038>048-050>052.

TX...Heat Advisory until 8 PM CDT this evening for TXZ090.

&&

$$

NEAR TERM...25
SHORT TERM...25
LONG TERM....25
AVIATION...09