788
FXUS65 KRIW 082024
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
124 PM MST Sat Nov 8 2025

.KEY MESSAGES...

- Wind gusts will continue to decrease through the afternoon
  across Johnson County, but a few cross-wind gusts could reach
  50 mph along I-90 through sunset.

- Only high clouds continue today behind the front, with
  temperatures about 10 degrees colder than yesterday.

- A warming and drier trend Sunday and into much of next week.

&&

.UPDATE...
Issued at 116 PM MST Sat Nov 8 2025

Other than a small band of clouds across southern Johnson and
northeast Natrona Counties, only light high cirrus are blocking
out this autumn sunshine. Cooler temperatures will continue
into the day Sunday, but highs will still reach right around
normal in the 40s. Otherwise, no accumulating precipitation in
the forecast until Thursday night, at the earliest...

&&

.DISCUSSION...
Issued at 1200 AM MST Sat Nov 8 2025

WV imagery depicts ridging building back in from the west as IR
shows the shortwave pushing further east into the upper Great
Plains. Radar still shows some lingering snow/rain showers
across southeastern portions of Natrona County that will exit to
the east and weaken through the overnight hours before sunrise
Saturday morning. Otherwise, winds have diminished in wake of
the cold front earlier Friday.

Upper level ridging starting to build back in from the west
across much of the CWA into Saturday with increasing convergence
aloft. A weak and subtle shortwave will propagate down the ridge
Saturday afternoon with a frontal boundary scraping along
northeastern portions of the state. As such, expect a
strengthened gradient across Johnson County in lee of the
Bighorns with northwest wind gusts up to 40 to 50 mph with
isolated stronger gusts possible (30-40%) mid to late afternoon.
Gusts further south into Natrona County up to 30 to 35 mph
likely (80-90%) for the same time frame. Winds will diminish
after sunset through the evening hours with dry conditions
expected throughout.

Beyond Saturday, expect a warming and dry trend for Sunday and
into much of next work week. Temperatures will push 10 to 15
degrees above average through Thursday with the next system to
impact the area by week`s end and into next weekend. Details are
still to be determined with model guidance showing conflicting
timing but more of a likelihood of increasing precipitation and
colder temperatures to be had at some point in that time frame.
Stay tuned for updated forecasts in the coming days.

&&

.AVIATION /18Z TAFS THROUGH 18Z SUNDAY/...
Issued at 1004 AM MST Sat Nov 8 2025

VFR conditions through the period. Gusty winds 15 to 25 knots occur
for many sites this afternoon, which decrease this evening.
Otherwise, a mostly clear sky persists through the period, with some
passing high clouds (cirrus) at times. AT KJAC, winds remain under
10 knots, with southwest to west winds from about 20z until about
00z, which become more northwest near 00z.

Please see the Aviation Weather Center and/or CWSU ZDV and ZLC for
the latest information on icing and turbulence forecasts.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

UPDATE...Straub
DISCUSSION...Lowe
AVIATION...Wittmann