Warm and sunny pattern to break down, Pacific Northwest returning to cool rain

Tuesday is likely to be the warmest day of this weather pattern for the Columbia Basin with the Tri-Cities reaching into the upper-70s (26°C). Temperatures in some areas west of the Cascades peaked on Monday. Portland recorded a high of 77°F (25°C), a new record for March 18, while Seattle peaked a few days ago. […]

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Pacific Northwest snowpack improves at the start of March after week of snow

A prolonged pattern of upper level troughing and repeated regional storm systems have added quite a bit of snow to mountains of the Pacific Northwest over the past week. As of the end of the day on March 4, the snow-water equivalent (SWE) value for the Northwest was 88% of the median for this time […]

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The Pacific Northwest’s other Ice Age Floods

Toward the end of the Last Glacial Maximum, catastrophic flooding surged down parts of the Columbia River watershed as natural dams creating large lakes failed. Some originated from Glacial Lake Missoula, which was created by a large dam of ice in Montana and Idaho that periodically failed. These, often termed Missoula Floods are probably the […]

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We need to close the Pacific Northwest Radar Gaps

Doppler radar is one of my favorite tools for viewing weather data. Its amazing to me that using radio waves, we can see light rain and snow, tornadoes, and fine details in hurricanes. Not only can we see where these are, but we can also estimate wind speeds, freezing levels, and hail sizes – all […]

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Warm system for Thanksgiving week

An atmospheric river is set up to douse almost the entire West Coast. Raising freezing levels today and tomorrow will aid Thanksgiving travelers the next couple of days, keeping snow off of the major passes. By midnight Monday night, the freezing level in much of Oregon will be above 9,000 feet with freezing levels remaining near […]

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The Pacific Northwest heatwave… won’t be that bad in East Idaho

It’s no secret that I talk to a lot of weather folks in the Portland and Seattle areas, despite living in East Idaho. The “hot topic” (pun intended) of conversation in these circles is the impending heat wave, which spells imminent doom for everyone west of the Cascades who doesn’t have air conditioning. Our good […]

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Incoming! Late season storm to bring snow to Northern Rockies

It’s May (obviously), and if you’re like me you’re super angry to see the word snow being thrown around willy nilly. Well, it’s real and it’s coming. On the bright side, this is a quick-moving storm with things beginning to clear out Wednesday and Thursday. Right Now First, here’s a look at the surface analysis […]

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