502
FXUS64 KTSA 170542
AFDTSA

Area Forecast Discussion
National Weather Service Tulsa OK
1242 AM CDT Tue Sep 17 2024

...New AVIATION...

.UPDATE...
Issued at 932 PM CDT Mon Sep 16 2024

No significant changes were required to the forecast this evening.
NW AR and far E OK still appear most favorable for fog development
late tonight, especially in the typically favored valleys. Fog may
become locally dense in areas, but widespread visibility reductions
are not expected. While brief, shallow fog may develop
elsewhere in the CWA, antecedent drier conditions should limit
coverage and visibility reductions. Overnight lows will generally
range between the lower and mid 60s.

&&

.SHORT TERM...
(Through tonight )
Issued at 200 PM CDT Mon Sep 16 2024

Still some lingering impact from "Francine" as the remnant low
continues to meander across the lower MS valley, all the while
weakening. Thus a few showers remain possible across parts of
western AR into the evening. The residual impact of moisture
along with clearing skies does imply some fog potential tonight
for most of western AR into some of eastern OK. While no strong
signal is present in the data for widespread impacts, some locally
significant reductions to visibility in normally more fog-prone
locations is implied.

&&

.LONG TERM...
(Tomorrow through Monday)
Issued at 200 PM CDT Mon Sep 16 2024

Tuesday will see one more relatively okay weather day before
summer makes a late rally that persists through most of the week
and possibly into the weekend. A prolonged blocking pattern
featuring an expanding ridge over the central states results in
rising temperatures and some increase in in humidity as well.

Current expectation remains that the upper trough currently moving
through the Great Basin will lift off to the northeast. This may
provide a brief glancing blow of forcing over the northwestern
sections of the forecast area by Tue night or Wed morning, but
most associated storm chances will likely remain to the northwest.
A second trough is then forecast to essentially replace the first
one in the southwest, in effect re-enforcing the strong ridge
over the Southern Plains. This should result in much above normal
temperatures for Thu and Fri, with some locations of northeast OK
making a run at the century mark.

BY the weekend the later trough should being to make its move,
however the trends do not favor a significant impact on our
weather at this time. Forecast will maintain lower-end chance of
thunderstorms beginning Friday night, with a modest "cool-down"
(still above normal) into early next week. No real fall weather
anytime soon it would appear.

&&

.AVIATION...
(06Z TAFS)
Issued at 1242 AM CDT Tue Sep 17 2024

Scattered to broken MVFR/low-end VFR ceilings ongoing across
across parts of Southeast Oklahoma and West Central Arkansas are
expected to continue overnight into Tuesday morning. At the same
time...light easterly winds and few/scattered MVFR/low-end VFR
ceilings in far Northwest Arkansas could lead to patchy/areas of
reduced visibility late tonight into Tuesday morning. Thus will
continue with tempo groups for timing of fog potential at
KXNA/KROG/KFYV. Across Northeast Oklahoma...mostly clear to few
MVFR ceilings are forecast tonight into Tuesday morning. During
the day Tuesday...LIFR to MVFR conditions in Southeast Oklahoma
and Northwest Arkansas and MVFR/low-end VFR ceilings in Northeast
Oklahoma should all become scattered to broken VFR by early
afternoon. Diurnal cumulus clouds should dissipate by early
evening with few/scattered high clouds Tuesday night. Winds
through the period should remain east to southeasterly.


&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   68  92  72  96 /   0  10   0   0
FSM   67  90  69  94 /   0   0   0   0
MLC   67  92  71  97 /   0   0   0   0
BVO   64  92  69  97 /   0  10  10   0
FYV   63  87  66  91 /   0   0   0   0
BYV   62  87  64  92 /   0   0   0   0
MKO   66  89  69  94 /   0   0   0   0
MIO   65  90  68  95 /   0   0   0   0
F10   65  92  70  97 /   0   0   0   0
HHW   67  91  69  95 /   0   0   0   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...None.
AR...None.
&&

$$

SHORT TERM...14
LONG TERM....14
AVIATION...20