Spot Forecast
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
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764 FNUS75 KSLC 211117 FWSSLC Spot Forecast for Beaver Slash Piles...USDA National Weather Service Salt Lake City UT 417 AM MST Fri Nov 21 2025 Forecast is based on ignition time of 0800 MST on November 21. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...A mostly dry period will commence as a closed low will pass to the south with precipitation confined to Arizona and southeast Utah through Sunday. Increased cloud coverage and high relative humidities will be the most noticeable impact from this passing low. Ventilation will remain low through the weekend given the weak winds aloft and lack of mixing. However, ventilation does increase and will likely be >500 Monday/Tuesday of next week as winds aloft increase and better mixing is introduced. A weak cold front will try to move through the area late Monday into Tuesday, but moisture will be limited with this frontal passage, and the next chance for widespread precipitation is likely over a week out. Winds will generally be light and terrain driven. .REST OF TODAY... Sky/weather.........Partly cloudy (50-60 percent cloud cover). CWR.................0 percent. Chance of pcpn......10 percent. Chance of lightning.3 percent. Max temperature.....41-43. Min humidity........62-64 percent. Wind (20 ft)........Terrain driven winds 3-6 mph. Mixing height.......3800 ft AGL. Climatology......30-40th Percentile. Transport winds.....East around 8 mph. Clearing index......300. .TONIGHT... Sky/weather.........Partly cloudy (35-45 percent cloud cover). CWR.................0 percent. Chance of pcpn......0 percent. Chance of lightning.1 percent. Min temperature.....31-33. Max humidity........69-71 percent. Wind (20 ft)........Terrain driven winds 3-7 mph. Mixing height.......700 ft AGL. Transport winds.....East 8 to 10 mph. .SATURDAY... Sky/weather.........Partly cloudy (45-55 percent cloud cover). CWR.................0 percent. Chance of pcpn......10 percent. Chance of lightning.0 percent. Max temperature.....43-45. Min humidity........58-60 percent. Wind (20 ft)........Terrain driven winds 2-7 mph. Mixing height.......3600 ft AGL. Climatology......20-30th Percentile. Transport winds.....East 9 to 12 mph. Clearing index......330. $$ Forecaster...Mahan Requested by...Trever Hunt Type of request...PRESCRIBED .TAG 2526389.2/SLC .DELDT 11/21/25 .FormatterVersion 2.0.0 .EMAIL trever.hunt@usda.gov