086 
FXUS65 KPIH 160804
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
204 AM MDT Sun Oct 16 2022

.SHORT TERM...Today through Monday night. The dominant feature for 
the short term is a high-amplitude blocking ridge currently over 
southern British Columbia. The upper high at the center of the ridge 
will slowly drift southeastward through the next couple of days 
resulting in a continuation of fair weather with warm daytime highs--
around 10 to 15 degrees above normal, and lows at or just above 
normal. Hinsberger

.LONG TERM...Tuesday through next Sunday. A high pressure ridge will 
remain positioned over the NRN Rockies through Thursday morning 
supporting a continuation of unseasonably warm daytime temperatures 
across the region. The ridge breaks down Thursday afternoon as a 
stronger westerly flow and the Pacific storm track overspreads the 
region Friday. A fairly robust storm system embedded in this flow 
will rotate into SRN Idaho Saturday resulting in a round of valley 
rain and higher mountain snowfall. Snow levels will drop quickly 
Saturday night into Sunday with a chance of a rain and snow mix 
possible within the Snake River Plain Sunday. Noticeably colder 
temperatures and windy conditions will accompany this system into 
the region Saturday and Sunday. Huston 

&&

.AVIATION...A dry and locally breezy north flow today will support 
VFR conditions across SE Idaho through Monday morning. Huston

&&

.FIRE WEATHER...A dry and locally breezy NE surface flow will 
persist today in the wake of Saturday's back-door cold frontal 
passage. The upper ridge will shift east into the NRN Rockies today 
and redevelop tonight encouraging a return to unseasonably warm 
daytime temperatures and dry conditions Monday through Thursday. The 
ridge breaks down Thursday afternoon as a stronger westerly flow and 
the Pacific storm track overspread the region Friday. A fairly 
robust storm system embedded in this flow will rotate into SRN Idaho 
Saturday resulting in valley rain and higher mountain snow with 
falling snow levels late Saturday night into Sunday behind the 
trough passage with a mix of rain and snow possible within the Snake 
River Plain Sunday. Colder temperatures and windy conditions will 
accompany this system into the region Saturday and Sunday. The 
operational GFS continues to show a second storm system following 
Monday whereas the ECMWF is supportive of a low amplitude ridge 
redeveloping along the NW coast. Huston 

&&

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

$$