Area Forecast Discussion
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
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761 FXUS65 KPIH 110914 AFDPIH Area Forecast Discussion National Weather Service Pocatello ID 214 AM MST Tue Nov 11 2025 .KEY MESSAGES... - Dry and warmer conditions through Wednesday - Precipitation returns as early as Thursday - Cool temperatures return Friday through the weekend. && .SHORT TERM /THROUGH WEDNESDAY/... Issued at 215 AM MST Tue Nov 11 2025 Looking at current water vapor imagery, there is mostly zonal flow aloft from a wave that is passing over western/central Montana. Models show high pressure ridging build back in across our area today into Wednesday bringing dry conditions and mild/warmer temperatures. Late Wednesday models show the ridge move just east of our area bringing southerly flow into our area ahead of a system that will move through Thursday into Friday. Expect temperatures today and Wednesday about 15 to 20 degrees above normal with temperatures in the 50s and 60s. && .LONG TERM /THURSDAY THROUGH MONDAY/... Issued at 120 PM MST Mon Nov 10 2025 East Idaho begins to see signs of the high pressure breaking down by Thursday as amplified shortwave trough shifts inland along the PacNW coast. Temperatures remain warm ahead of the system, with highs in the 50s to lower 60s even into Thursday ahead of the frontal system associated with the shortwave. Ensemble clusters show slightly different timing on the system arrival, with precipitation onset offset slightly later for 25-30% of the ensemble members. Overall, precipitation begins to reach the central mountains as early as Wednesday night, but generally spreads across the region Thursday. Snow levels start out high but drop to near valley floors Thursday night, bringing a mix of rain and snow to lower elevation areas. Temperatures remain cold into Friday, continuing the threat of rain/snow mix at lower elevations during the day. At this time, the probabilities for any accumulations more than a dusting through the Interstate corridors of the Snake Plain is less than 10%. Trend is for precipitation to weaken Friday night into early Saturday, as a weak transitory ridge shifts through the state, though showers continue mainly over higher elevations through the weekend. Another weak system is projected to arrive late Sunday into Monday for another round of precipitation. Temperatures remain cool with daytime highs only in the 40s, so potential exists for a rain/snow mix continuing at lower elevations into early next week. && .AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/... Issued at 1029 PM MST Mon Nov 10 2025 High pressure will keep conditions dry and VFR with FEW to SCT high clouds. Winds, variable at times, will generally remain under 10 kts throughout the period. && .PIH WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...TW LONG TERM...DMH AVIATION...Cropp