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Unprecedented June heat wave threatens all-time temperature records

An extraordinary heat wave will build over the Pacific Northwest and British Columbia this weekend, bringing some of the warmest recorded temperatures in the history of the region. The upper-level forecast for Saturday evening shows an extraordinary “heat dome” ridge centered over western North America. Temperatures under the ridge are expected to easily be above

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Tracking migrating birds with weather radar

Looking at weather radar this time of year can be a bit confusing, as radar returns often appear seeming out of nowhere just after sunset and disappear just before sunrise. A radar loop of the past two nights over the PNW shows this amazing phenomenon, which can be attributed to migrating birds headed north for

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Snowy February, Dry March

Seattle’s February snow pack is long gone, but there is still plenty of snow to be found in the mountains. They got a help from the storm track last month, which was well positioned to blanket Washington and northeastern Oregon with precipitation. To get an idea of the shape of the storm track I’m showing

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One of the biggest snowstorms in decades takes aim at Seattle

This is the real deal, a significant 1-2 punch snowstorm is headed for the Seattle metro area beginning Thursday and continuing into Saturday night. Significant snowstorms are extremely rare in Seattle because it is nearly impossible for a storm system to combine cold, arctic air from east of the Cascades with warm, moist maritime air

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How much is it going to snow in the PNW lowlands this week?

Time to stock up on bananas and hunker down, the snowiest period since February 2019 is headed for the Pacific Northwest. While there is still some uncertainty about specifics, there is high confidence that the western WA lowlands, particularly the Seattle-Tacoma-Olympia corridor, will experience a period of snowfall at the end of the week. In

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Arctic air heads for the Pacific Northwest

The Pacific Northwest has seen little in the way of true winter weather so far this year. With the days getting longer and spring rapidly approaching, time is running out to get some real cold into our region. One month ago I wrote about the possibility that the polar vortex would be paying a visit

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