Bluesky surface smoke shows generally light impacts across the state throughout the forecast period with brief hours of increased concentrations over portions of central and southwest Idaho.
Today, 8/26 | Good to Moderate | The upper-level trough will depart to the east and a transitory high-pressure ridge will be over most of the state. There is a lingering chance for showers over the panhandle of north Idaho and over eastern Idaho. Winds will be from the southwest to northwest at 5-15 with gusts up to 25 mph over the Palouse and from 20-30 mph over the Middle and Upper Snake River Plain this afternoon. Thunderstorms will have the capability of producing gusty outflows in excess of 20 mph. | Smoke impacts near fires will be greatest, particularly across central Idaho with large fires burning both on the west side and east side of the state. Impacts today will remain over that area with zonal flow shifting smoke generally to the east. |
Saturday, 8/27 | Good to Moderate | A cold front on Saturday will bring a chance of showers to the Panhandle and central Idaho. This system will also bring a chance for our first snow across the highest peaks in the West-Central mountains. Surface winds will be from the southwest to northwest at 10-30 mph with gusts approaching 50 mph in central Idaho and into the Upper Snake River Plain. | Nocturnal drainage smoke looks to reach the southern Panhandle early Saturday morning as well as generating hazy conditions over the Lower Treasure Valley and Owyhee County. The active weather on Saturday should limit high smoke concentrations in the state except for areas near active fires once more. |
Sunday, 8/28 | Good to Moderate | On Sunday, conditions temper with a slight chance for showers over eastern Idaho and central Idaho. Surface winds will be from the northwest to southwest at 5-15 mph with gusts to 20 mph in the Middle Snake River Plain. | Early Sunday morning, there will be patchy smoke and haze over the Lower Treasure Valley once more. Conditions will clear throughout the day Sunday. |
Monday, 8/29 | Good to Moderate | By Monday, an upper-level ridge will build, leading to hot and dry conditions for the first part of the week. Winds will be from the south-southwest to north-east at 2-8 mph. Low wind speeds will lead to erratic wind directions. | Monday looks to be relatively clear with only light lofted smoke. |
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