


Area Forecast Discussion
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
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315 FXUS65 KPIH 022332 AFDPIH Area Forecast Discussion National Weather Service Pocatello ID 532 PM MDT Wed Apr 2 2025 .KEY MESSAGES... - Cold conditions continue through Friday with convective snow showers mainly in the mountains with a slight chance of mixed rain and snow showers in the valleys. - Dry weekend as temperatures warm. && .SHORT TERM /THROUGH THURSDAY NIGHT/... Issued at 1253 PM MDT Wed Apr 2 2025 Satellite imagery shows broad upper low across Idaho/Utah today. Wrap around moisture working around the northern portions of the low in cold pool continuing to fire showers across East Idaho. Temperatures should warm enough this afternoon to support mix of rain/snow at lower elevations, otherwise expect primarily mix of snow/graupel, with light 1-2" accumulations in heavier showers at higher elevations, though a few ranges across the central mountains show some accumulations could reach as high as 3-4" if the showers keep redeveloping over the same areas. Showers taper overnight, but return again on Thursday, albeit with slightly less coverage and with slightly warmer temperatures. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... Issued at 1253 PM MDT Wed Apr 2 2025 Long wave trof pushes east of the area Friday afternoon with a cut off low over the desert southwest moving out as well. This will open the door to the west for an encroaching upper ridge of high pressure. Considerable agreement across the guidance space including the multiple suites of ensembles through at least Saturday. Guidance agreement begins to devolve slightly heading into early next week as a shortwave trough erodes the high amplified ridge axis overhead. This shortwave will bring low precipitation chances back to the area, if even briefly but precipitation amounts shouldn`t be significant. Temperatures that will be warming through the weekend, will plateau just above normals Monday/Tuesday with the ridge breaking down temporarily. After Tuesday, however temperatures are expected to climb through the balance of the week. The upper-level ridge will re- establish, building in from the south and amplifying our warming potential. The warmest temperatures of next week look to be just beyond the current long term period, where the NBM Records monitor is showing some very early potential at challenging the daily high record for Pocatello and perhaps a few record high min temperatures. This will be something we`ll be monitoring going into next week, especially with the amount of mid and high elevation snowpack still to melt off this spring. && .AVIATION /00Z TAFS THROUGH 00Z FRIDAY/... Issued at 527 PM MDT Wed Apr 2 2025 Showers are still expected to decrease strongly between 02/02Z and 02/03Z. Wind should also decrease strongly at that time, with some locations going light and variable tonight, a marked difference from the past three days. Isolated to widely scattered SHRA/SHSN should develop again in the mid-afternoon, with KIDA and KDIJ the most likely targets. KPIH may be able to get by with no concerns. KBYI had stratus issues this morning, and it appears as though the same will happen in the eastern Magic Valley again, with a solid risk of marginal VFR CIGs. && .PIH WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...DMH LONG TERM...TAX AVIATION...Messick