060
FXUS65 KRIW 072315
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
415 PM MST Fri Feb 7 2025

.KEY MESSAGES...

- Winter weather continues today, with snow, rain, and wind.

- Colder Saturday behind the cold front, with cold temperatures through
  at least the first half of next week.

- Light snow chances occur through the first half of next week, mainly
  for the western mountains.

&&

.DISCUSSION...
Issued at 951 AM MST Fri Feb 7 2025

A winter weather system is currently passing through the area. The
weather is quite diverse across the area, with snow, rain, wind, and
even some lightning. Winter highlights continue through late this
evening across the west. The heaviest snow occurs during the
morning, with lessening snow rates through the afternoon. For the
most part, things seem to be on track. Cody is the exception, where
overrunning of warmer air has dumped more snow in the morning than
was expected. A Winter Weather Advisory has been issued for the Cody
foothills as a result of the reduced visibilities and falling snow.
Rain/snow mix, or just rain, is still anticipated from roughly a
Cokeville to Kaycee line and south. Therefore, outside the western
valleys and mountains, little to no snow accumulation is expected.
Precipitation will come to an end for most locations this evening
through about midnight.

A cold front is also sweeping through the area today. This will drop
temperatures in its wake. For locations south and east, (such as
Sweetwater and Natorna Counties) the front won`t pass until later
today, allowing highs to climb into the mid to upper 40s, to near
50. Highs Saturday will be notably cooler, in the 20s for most. Some
lingering snow showers will be around the western mountains through
the day. Additional accumulations there will generally be under an
inch, though the Tetons into southwest Yellowstone may see up to 3
inches through the day.

Zonal flow through the first half of next week keeps light
precipitation chances in the forecast, mainly for the western
mountains. Temperatures also remain on the cold side, with highs
generally in the teens to low 20s. The next system to watch is for
Thursday into next weekend, though confidence on details is very low
this far out.

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 414 PM MST Fri Feb 7 2025

West of the Divide...KBPI/KJAC/KPNA/KRKS Terminals.

The winter storm that has impacted the area all day is beginning to
move out. KBPI/KJAC/KPNA are all currently VFR. However, one last
round of snow is expected to impact KJAC by around 01Z, likely
bringing prevailing IFR visibility there for a few hours. KBPI and
KPNA are expected to remain VFR. The low IFR conditions at KRKS are
expected to be relatively short-lived and should increase to VFR as
the showers move out after 01Z. KJAC will hold on to occasional
VFR/MVFR snow impacts as snow lingers in and around the mountains
there through Saturday morning. Otherwise, wind will decrease after
sunset though remain breezy through the night. VFR conditions return
to all terminals by Saturday afternoon.

East of the Divide...KCOD/KCPR/KLND/KRIW/KWRL Terminals.

Lingering winter storm impacts are expected through the first
portion of the period, most likely at KCOD and KCPR. Snow is then
expected to taper off through the evening, with all terminals VFR by
early Saturday morning. The gusty wind seen all day will gradually
taper off through the evening. VFR conditions expected to persist
through Saturday.

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...
Winter Weather Advisory until 11 PM MST this evening for
WYZ001>003-013-023-025.

Winter Storm Warning until 11 PM MST this evening for WYZ012-
014-015-024.

&&

$$

DISCUSSION...Wittmann
AVIATION...Myers