Heat for the weekend, t-storms possible Monday

Ridging is building over the American West today into the weekend, leading to a regional heat wave in the Pacific Northwest. Above average temperatures are forecast for the Columbia Basin, though things aren’t looking quite as warm as they were originally expected. The Tri-Cities can expect a high in the mid 80s on Friday and […]

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Some clouds Wed afternoon with heat wave on tap this weekend

Tri-Cities weather May 10, 2023 Starting the day with just a few clouds moving about the Columbia Basin. A weak trough is forecast to pass overhead so that with daytime heating, cumulus development is likely starting midday for partly cloudy skies this afternoon. Scattered thunderstorms in the mountains will add some high clouds to the […]

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Rain showers and mostly cloudy Tue, heat wave this weekend

Tri-Cities weather May 9, 2023 An upper level low pressure system is moving eastward into the Northern Rockies Tuesday morning. Rain showers and isolated thunderstorms, mostly south of the Tri-Cities, will taper off into midday as the low moves deeper into Idaho. Maybe some clearing midday before clouds from mountain thunderstorms develop this afternoon. An […]

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Increasing clouds Thu, t-storms tonight, breezy Fri

Tri-Cities weather May 4, 2023 Partly cloudy skies to start the day. These are mostly high clouds drifting north from thunderstorms in mountains to the south and east. Increasing clouds for the remainder of the day which will moderate highs compared to yesterday. Look for temperatures reaching the mid to upper 70s. The Storm Prediction […]

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Warm temperatures, strong t-storms create flood risk in Inland Northwest

Warm temperatures in the Inland Northwest this week have accelerated snowmelt. Broadly speaking, the snowpack in the Columbia River watershed remains healthy though it has dropped rapidly relative to climatological norms the last few days. Rapid melt periods are common during Spring and early Summer and the rate is likely to decrease into the weekend […]

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High close to 90° Wednesday, t-storm chances a bit less impressive

Mostly clear skies through the morning hours with temperatures starting in the upper 40s in the Tri-Cities area. Upper level low pressure remains in place, centered near San Francisco. This is forecast to continue spinning moisture into the Inland Northwest today and tomorrow. The moisture from the San Francisco low will likely generate a few […]

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Upper level low spinning clouds, isolated t-storms in Tuesday

Tri-Cities weather – May 2, 2023 A strong upper level low pressure system centered near San Francisco this morning is driving the weather pattern over the Pacific Northwest today. In the Columbia Basin, this is likely to produce intermittent clouds and sun along a fairly narrow band. Previously, temperatures were forecast to reach into the […]

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Wind advisory for the Columbia Basin Tuesday afternoon

Rain showers were observed in the Columbia Basin early Tuesday as a disturbance passed through the Pacific Northwest. Most of the lowland precipitation has ended, though some showers remain possible into the daytime hours with the highest chance of these being along the Blue Mountains and northeast toward Ritzville. A few rumbles of thunder are […]

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Spring 2021 was third driest on record for Tri-Cities, driest in Walla Walla & Pendleton

Source: Hervé Agnoux/Wikimedia Commons

This Spring will go down as the third driest on record for the Tri-Cities as dry conditions continue to plague much of the American West. A total of 0.31 inches of rain was observed during the months of March, April, and May (meteorological spring). Tri-Cities Driest Springs Rank Year Precipitation 1 1964 0.06″ 2 1900 […]

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