Good morning, everyone!
Thursday is shaping up to be another active weather day across the region, with the potential for strong to severe thunderstorms developing this afternoon and evening. The greatest severe weather threat is expected across southeast Oregon, where the Storm Prediction Center has issued a Slight Risk for severe storms. Portions of southwest Idaho remain under a Marginal Risk, meaning isolated severe storms are possible. Boise and much of the Treasure Valley are mainly under a general thunderstorm threat, but storms could still bring gusty winds, blowing dust, lightning, and brief heavy rain later today.
Storms are expected to first develop across southeast Oregon and near the Nevada border this afternoon before tracking north and northwest through the evening hours. The strongest storms will likely stay west of Boise, especially across areas of Malheur County, western Owyhee County, and parts of the west-central Idaho mountains.
Impacts
The biggest impact today will likely be strong outflow winds. Some storms could produce wind gusts between 40 and 60 mph, with isolated gusts near 70 mph possible in the strongest storms across eastern Oregon. Winds of that strength can blow around patio furniture, trampolines, garbage cans, and other loose outdoor objects, bring down tree limbs, and cause isolated power outages.
Blowing dust may also become a major issue in open desert and agricultural areas, especially across eastern Oregon and southwest Idaho. Visibility could quickly drop on roads and highways, creating dangerous travel conditions for drivers.
Some storms may also produce hail capable of damaging vehicles and outdoor property, while brief heavy downpours could lead to ponding on roads and reduced visibility. Frequent lightning will also make outdoor activities dangerous through the afternoon and evening.
Even though Boise is not currently in the higher severe weather categories, residents should still stay weather aware because any thunderstorm that moves through the Treasure Valley could produce sudden gusty winds and localized blowing dust.
Looking ahead
Storm chances continue Friday with additional showers and weaker thunderstorms before conditions gradually dry out heading into the weekend. Temperatures will cool closer to normal on Saturday before another warming trend develops next week.
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