133
FXUS65 KRIW 062326
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
526 PM MDT Thu Jun 6 2024

.KEY MESSAGES...

- Above normal temperatures continue through the upcoming
  weekend.

- A weak cold front to the northeast will bring some showers
  mainly for higher elevations late Friday and Saturday.

- Another wave to the northwest will bring a chance for showers
  to the western mountains on Sunday.

&&

.DISCUSSION...
Issued at 203 PM MDT Thu Jun 6 2024

Warm temperatures have continued today under strong early
summer ridging. Expect this ridge to keep warm temperatures in
place through the upcoming weekend into early next week. While
the ridge may be holding place, there will be a few weak systems
trying to push around the ridge through the weekend. The first
one is moving into SW ID currently, and may spread a few showers
into the western mountains tonight. Lack of instability will
keep these showers light, with minimal accumulation. The second
system sweep by to the north east later Friday and Saturday.
While this second system sweeps a weak cold front through
northeast WY, impacts for our CWA will be minimal, with a slight
downtick in temps for Johnson and Natrona County Friday. There
may be enough cooling aloft to bring a little more instability
for more shower activity, especially over higher mountain peaks
of the Bighorns, and greater Natrona County. Another system will
sweep across the northern Rockies Sunday. Latest model runs
have brought this system a little closer to northwest WY for
Sunday, bring a little more moisture along from the Pacific, and
occurs during peak heating. This is bringing a better chance
for rainfall for all of NW WY, but chances remain low for any
accumulation of 0.25".

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 523 PM MDT Thu Jun 6 2024

Mainly light winds will continue through tonight, with the exception
of breezy gusts 15 to 20 kt at KRKS, KBPI and KPNA. Those winds
will diminish after 02Z. Scattered to broken high clouds across
the northwest will spread southeastward across the state after
07Z. VFR conditions will prevail through the 24-hour period.

Winds will increase once again Friday afternoon but remain
below 20 kt for the most part. KRKS could see higher gusts to 25
kt. There is a chance of showers and isolated thunderstorms
developing in the afternoon, but confidence at this time is too
low to include them at any of the TAF sites.

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

&&

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

&&

$$

DISCUSSION...Straub
AVIATION...Swanson