403
FXUS65 KPIH 030722
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
122 AM MDT Thu Apr 3 2025

.KEY MESSAGES...

- Cold with continued mountain snow showers today with isolated
  showers in valleys. Lingering showers in eastern highlands
  Friday.

- Dry weekend as temperatures warm.

&&

.SHORT TERM /THROUGH FRIDAY NIGHT/...
Issued at 110 AM MDT Thu Apr 3 2025

Little change to weather today with upper level trof still in
place over Idaho and expect convective snow showers in the
mountains with light accumulations mainly expected in the
central mountains and eastern highlands. Expect only isolated
showers in the Snake River Plain but overall minimal impacts are
expected. It will remain cold with temperatures below normal
and highs in the 30s to lower 40s mountains and 40s to around 50
in the lower elevations. Expect lingering snow showers in the
eastern highlands Friday but will see significantly less
coverage than today as the upper trof moves east. Lows tonight
teens mountains and 20s to around 30 valleys and highs Friday
40s to lower 50s valleys and upper 30s to 40s mountains.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
Issued at 110 AM MDT Thu Apr 3 2025

Extended forecast remains consistent. Upper level trough exits the
region by Saturday resulting in dry weather for the weekend. A ridge
slides into the area, resulting in near normal temps for Saturday
and above normal temps for Sunday. Models still have a weak trough
arriving Monday into Tuesday. This will produce a chance for light
precipitation mainly across the mountains and highlands both days.
Then the ridge amplifies with well above normal temps and dry
weather for the second half of next week. With a longer period of
above normal temps expected, wouldn`t be surprised to see rises on
area streams and rivers next week.
&&

.AVIATION /06Z TAFS THROUGH 06Z FRIDAY/...
Issued at 1021 PM MDT Wed Apr 2 2025

Overnight radiative cooling with continued isolated shower
activity will lead to a risk of stratus and marginal VFR CIGs
developing late tonight, with the likeliest places KPIH and
KBYI. It occurred at KBYI on Wed morning and could spread
farther eastward tonight. Yet another round of SHRA/SHSN and,
according to SPC, TSRA, should occur. The showers will slide
through from northwest to southeast, so KSUN will start it off
with showers in the area by 03/12Z. Daytime heating will help
trigger a greater coverage of activity by 03/20Z at the other
airdromes. KSUN has probabilities in the afternoon reaching a
level where they are a predominate weather element, and with the
temperature and dewpoint depression allowing for -SHRASN.
Everywhere else, only VCSH is mentioned. Expect KSUN to stay VFR
during the event, at least at this time. The triggering is not
caused by much in the way of an active front, with a lot of wind
expected to be variable and light. Only the Snake River
plain/eastern Magic Valley airports should reach the 10KT to
15KT range, mostly during the afternoon and early evening.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

SHORT TERM...GK
LONG TERM...13
AVIATION...Messick