Area Forecast Discussion
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
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406 FXUS65 KSLC 161159 AFDSLC Area Forecast Discussion National Weather Service Salt Lake City UT 559 AM MDT Sun Aug 16 2026 .KEY MESSAGES, Issued 301 AM MDT Sun Aug 16 2026... - A warming trend will continue through at least Thursday. - Elevated to locally critical fire weather conditions will occur across central and southern Utah Tuesday into Wednesday. - The next monsoon surge is increasing in probability to begin on Friday...which will be the next chance for measurable rainfall for the vast majority of the region. && .DISCUSSION, Issued 1016 PM MDT Sat Aug 15 2026... Drier air will remain in place across the area through at least the middle of the week. The prior trough that brought widespread precipitation has lifted back to the north with shortwave ridging building back into place before a more substantial ridge redevelops across the Four Corners area later in the week. Low and mid level moisture remains high enough over the coming days that diurnal convection will still persist across the higher terrain (~20-30% chance) with a few (~5% chance) storms possible across the lower terrain. Temperatures will get back into the 90s tomorrow with a gradual increase as the ridge strengthens across the area. Guidance has trended further north with a shortwave moving through Montana on Tuesday and Wednesday. This will keep winds a bit weaker with storm chances lower compared to prior forecasts. Winds are now forecast to remain <30 mph for afternoon gusts. This will limit the locally critical to elevated fire weather conditions given that RH will also stay >15% across most locations. The monsoon pattern starts to redevelop by the end of the weekend as a ridge becomes centered near the Arizona/New Mexico border. The majority of guidance has PWAT anomalies remaining above normal through the remainder of the month which is line with the 6-10 and 8-14 day outlook. && .AVIATION...KSLC...South winds are expected to shift northwest around 19z, with a 30% chance the wind shift will occur around 20z or later. VFR conditions will prevail through the valid TAF period. REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions will prevail areawide through the valid TAF period. Isolated showers and thunderstorms are expected to redevelop again this afternoon, mainly along the higher terrain of Utah into Uinta County, WY. Generally light winds with typical diurnal trends are expected at area terminals. && .FIRE WEATHER, Issued 301 AM MDT Sun Aug 16 2026... A drying and warming trend will continue across the region. This will bring near critical to critical humidities as early as today across many valley locations. These low humidities will continue through Friday before another monsoon surge begins to impact the region. Elevated to locally critical fire weather conditions remain forecast for Tuesday and Wednesday across portions of central and southern Utah. The next chance for wetting rains will be Friday, especially across the higher terrain. && .SLC WATCHES/WARNINGS/ADVISORIES... UT...None. WY...None. && $$ Kruse/Mahan For more information from NOAA`s National Weather Service visit... http://weather.gov/saltlakecity