FXUS65 KSLC 062137 AFDSLC Area Forecast Discussion National Weather Service Salt Lake City UT 337 PM MDT Sun Apr 6 2025 .SYNOPSIS...High pressure will bring warmer than normal, dry conditions most of Monday. A weak storm system will graze northern Utah Monday into Tuesday. High pressure will build in after and likely last into the weekend. && .SHORT TERM (Through 12Z/6AM Tuesday)...Southwest Wyoming and Utah have been downstream of a ridge, with a dry northerly synoptic flow. The ridge axis will track across Sunday night into Monday. A clear, cool start to Monday will transition into a mild day, with temperatures around 10F warmer than normal. Southwest flow will increase some as a storm system approaches. It will be a rather weak storm system, but southwest winds will enhance, mainly for southwest Utah. Gusts will generally range from 20-30 mph. The associated cold front will graze northern Utah, with isolated to scattered showers near the Idaho border Monday night into Tuesday. Dry conditions will continue elsewhere. The front will bring a slight cool down Tuesday for southwest Wyoming and northern Utah, while conditions will warm elsewhere as another ridge approaches. .LONG TERM (After 12Z/6AM Tuesday)...A brief lull in the warm up is expected Tuesday and Wednesday as a shortwave trough slides by to our north. Following this, the warm-up continues with dry conditions expected through the duration of the extended forecast as amplified ridging remains in place over the forecast area. To kick off the extended forecast, the aforementioned shortwave will pass by to our north serving to keep temperatures slightly cooler with most valleys generally staying in the 60s. Additionally, weak forcing for ascent may result in some highly isolated showers across Utah predominately on Tuesday across northern Utah, though some isolated showers may occur in northwest Utah as early as late Monday night. Rainfall accumulations will generally be around a trace or less with these showers. Ridging continues to build in over the region for the duration of the extended forecast with pleasantly warm conditions going into Saturday. The warmest day of the forecast period is expected to be Friday with most valleys across northern Utah hitting the upper 70s. Friday will also feature the first relatively good chance of the year for the Salt Lake Valley breaking into the low 80s. Additionally, lower Washington county will likely see highs in the 90s beginning as early as Wednesday persisting into the weekend. The long range signal near the end of the weekend is that troughing will return to the area near the end of next weekend. As of now, all we know is that this could result in temperatures declining somewhat as the end of the weekend approaches. Ensemble guidance has diverged somewhat with around ~50% of guidance showing a more amplified trough pushing into the northern pacific coast with the other half either keeping the trough relatively weak. Nevertheless, a signal for active weather and a cooldown of some sort appears likely on the horizon. && .AVIATION...KSLC...Minimal operational concerns are forecast for the KSLC terminal through the valid TAF period. VFR conditions under largely clear skies are expected through the early morning with high level clouds increasing thereafter. North winds remain in place through ~03Z, reverting to a southerly flow through the night. .REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions will be maintained across the forecast area throughout the valid TAF period. Winds are expected to be generally light across most terminals, with flow directions following diurnally driven trends. Gusty north winds are expected through the remainder of the afternoon hours in portions of southwest Utah (BCE to CDC), decreasing in speed after sunset. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...None. WY...None. && $$ SHORT TERM...Wilson LONG TERM...Worster AVIATION...Webber For more information from NOAA's National Weather Service visit... http://weather.gov/saltlakecity