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August 2017
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The Week Ahead: Mostly Dry—Occasional Light Rain

Posted: January 30th, 2017

  Forecast Summary • An upstream blocking high pressure system will continue to keep our weather relatively quiet. • Light rain/drizzle is likely early tomorrow; otherwise it’s forecast to stay dry through Thursday. • A low pressure system with light precipitation may approach the region on Friday. • Extended forecasts suggest gradual warming and occasional […]

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The Week Ahead: Cool and Dry

Posted: January 27th, 2017

  Forecast Summary • High pressure will provide mostly dry and cool conditions this week. • Clouds and light showers are possible on Wednesday and Thursday. • A low pressure system should approach the region on Saturday; chances are low that it will provide much precipitation. • Extended forecasts suggest continued cool and occasionally showery […]

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Storm Summary: An Odd 24 Hours

Posted: January 18th, 2017

  That was one of the most intense 24-hour storm events Seattle has seen in a while. Post-frontal showers are still racing through the region, but they’re not likely to significantly add to storm totals.   Each of SPU’s 22 reporting rain gages recorded over two inches in 24 hours. Five gages recorded at least […]

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The Week Ahead: Heavy Rain Tonight, Showers After

Posted: January 17th, 2017

  Forecast Summary • A strong system will provide heavy rain and wind tonight and tomorrow. • The NWS has issued a Winter Weather Advisory and an Avalanche Watch for the Cascades. • Cool, showery conditions are expected to linger through at least Saturday. • Extended forecasts suggest normal, cool and showery conditions next week. […]

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The Week Ahead: Mostly Cold and Dry, Slight Chance of Snow + King Tides

Posted: January 9th, 2017

One more cold snap, then getting warmer and wetter…unless it doesn’t: Last week’s forecasts looked similar.   Forecast Summary • Scattered rain showers today and tonight; slight chance of snow flurries early tomorrow. • Cold and dry again tomorrow afternoon through early Friday. • Slightly warmer and showery conditions are expected for the weekend. • Seasonal […]

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The Week Ahead: Cold and Dry

Posted: January 3rd, 2017

  Forecast Summary • Dry and cold, with city-wide lows near 20 degrees and highs near 32 through Thursday. • Low pressure systems return by Friday, with a possible snow-to-rain scenario on Saturday. • Extended forecasts suggest cool and wet conditions next week and beyond.   Water Supply • last 7-days precip (USGS): 0.7″ – […]

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The Week Ahead: Showers, Heavy Mountain Snow

Posted: December 27th, 2016

  Forecast Summary • on-shore flow with showers and heavy mountain snow today • NWS Winter Storm Warning in effect for the Cascades • next frontal system is forecast to arrive on Thursday • colder with rain/snow showers likely over New Year’s weekend • extended forecasts strongly suggest frigid conditions next week   Resources NWS […]

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More Wind, Waves and Tides

Posted: December 20th, 2016

  A large wind storm that landed well to our north provided strong southwesterly winds this morning. It also provided another, albeit non-King Tide, chance to monitor tides and coastal flooding.   Wind readings from around the Sound more or less came in at 20mph sustained with gusts to about 30mph, notably weaker than recent […]

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Wind, Waves and Tides

Posted: December 19th, 2016

  Last Monday’s weather forecast was not that exciting: a few snowflakes; otherwise cold and dry. More noteworthy was the fact that another round of King Tides was imminent. Predicted water levels Wednesday through Sunday were over 12-and-half feet (relative to mean lower-low water).   The good news was that the same high pressure that […]

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The Week Ahead: Slightly Warmer and Wetter

Posted: December 19th, 2016

  Forecast Summary • NWS coastal flood advisory in effect: wind and waves likely to cause minor impacts to south facing beaches (Alki and West Point) this morning. • pair of frontal systems will pass today through tomorrow and provide rain and mountain snow. • Wednesday looks dry before the next series of systems arrives […]

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