Od: 01.08.2026, 13:00
Do: 01.08.2026, 14:00

...GUSTY WINDS AND LOW HUMIDITY EXPECTED THIS WEEKEND... .A building ridge to the south combined with a trough moving across western Canada will tighten the pressure gradient over the area through the weekend creating breezy to windy conditions for the weekend. This combined with warming temperatures and low humidity will lead to high fire danger across much of eastern Idaho. * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM, Fire Weather Zone 422 Sawtooth Range/Northern Sawtooth NF, Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River, Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * WINDS...West to southwest 15 to 25 mph with gusts up to 30 mph Saturday afternoon with gusts to 40 mph Sunday afternoon. * RELATIVE HUMIDITY...10-15 percent with a few areas falling below 10 percent. * IMPACTS...Wind and low humidity can lead to rapid spread of fire and more intense fire in receptive fuels.

Od: 01.08.2026, 14:00
Do: 01.08.2026, 20:00

...DRY COLD FRONTAL PASSAGE SATURDAY... Critical fire weather conditions as a dry cold front moves through the region. Winds begin to rise Saturday afternoon, although mostly remain 15 to 20 mph with 25 to 30 mph gusts. At the same time, minimum RHs across the area are well below 20%, down to 10% in the high desert. Winds increase overnight as RHs begin to rise out. Winds 20 to 25 mph with gusts up to 45 mph are possible from Baker County through the Lower Treasure Valley overnight Saturday. These strong winds occur as RHs rise out of critical dryness, however active fire behavior may be observed even past the Red Flag Warnings due to the winds. The National Weather Service in Boise has issued a Red Flag Warning for winds and low relative humidities, which is in effect from 3 PM to 9 PM MDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Idaho, Fire Weather Zone 402 Eastern Payette National Forest. * TIMING...From 3 PM to 9 PM MDT Saturday. * WINDS...West 15 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...15 to 21 percent. * TEMPERATURES...77 to 89 degrees. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.