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August 2014
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Archive for August, 2014

Weekend Wx Outlook

  Even though summer still has one more month to go, this weekend’s weather will make us all start to think about fall.   A large trough of low pressure, which appears be heading southward because of an active “polar vortex” over Alaska, will pass by the Pacific Northwest on Friday and Saturday. Swirling around […]

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Monday Morning Wx

  Save for the smoke that has filtered down from British Columbia, our current weather is about as normal as it gets right now in Seattle. (Above is a somewhat recent NASA satellite image showing fires in red and blueish smoke drifting throughout the region.) Normal at this time of the year, of course, means anxiety […]

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Weekend Wx Outlook

    Onshore flow, abetted by a large scale trough hanging over the Rockies (00z GFS above) will keep us mostly cloudy and cool today. The upper level feature will be replaced by a deepening low pressure system (that forecast models swing through via Vancouver Island) tomorrow night. Spotty light rain is thus possible late […]

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Monday Morning Wx Outlook

  Summer returned over the weekend after last week’s lethargic upper level low finally exited the region. (In the event that you’re wondering, that low is currently drifting through Canada, over the top of Lake Superior.)   After a warm day today, we’ll experience some good old fashioned onshore flow with some sun, some clouds and pockets […]

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Storm Recap

    A wild, but not necessarily unprecedented storm provided Seattle with record rainfall early Wednesday morning. The event was associated with a low pressure system that slowly drifted through the Northwest over the course of four days. The cut-off low appeared to have tapped into the North American Monsoon, which normally affects the Desert […]

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Wx: Another Round of Instability

  A cut-off low pressure system will drift through the region this week and produce scattered showers and thunderstorms across the lowlands and mountains. Most rainfall should remain spotty and very light, however some forecast models are indicating a good chance of heavier showers late Tuesday and into Wednesday. The system will exit the area […]

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July 2014 Precipitation Summary

  For a while, it was looking like July would feature no rainfall for the second straight year. Sure, there a few days, most notably on the 4th, in which Seatac only recorded a trace while others nearby got wet. But our summer really seemed to come to a screeching halt on the 23rd, when […]

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