The primary main storm of the season has arrived, and prior to now few days rainfall data have fallen whereas 1000’s have been left with out energy.
Puget sound vitality
Seattle Metropolis Mild
Snohomish County PUD
Tacoma power
The primary mountain snow of the season this weekend heralds autumn
The rain hit the Puget Sound space on Friday afternoon, breaking the September 17 report for each Bellingham and Quillayute, who noticed 1.45 and three.05 inches for the day, respectively. The earlier report for Bellingham that day was 0.93 inches; The Quillayute report was 1.97.
The showers elevated on Saturday, with one other each day report dropped in SeaTac, which was 0.81 inches for the day. The earlier rainfall report for September 18 at SeaTac was 0.78 inches and was set in 2010.
48 hours of rainfall – as much as about 5 inches within the mountain rainforests, solely about 0.4 inches within the slipstream of the Olympics between Port Townsend and Quilcene. About an inch within the Seattle space. Elements of east Washington did not see a lot in any respect (Wenatchee to Omak, for instance). pic.twitter.com/cinYSmBvei
– NWS Seattle (@NWSSeattle) September 19, 2021
Whereas the likelihood of thunderstorms on Friday was “low”, the KIRO 7 meteorologist Morgan Palmer had mentioned there could be a “higher shot” on Saturday or Sunday afternoon.
“Nationwide Mix of Fashions assumes a thunderstorm likelihood of 30% for the Seattle space,” mentioned Palmer.
On Saturday afternoon, the temperature at Sea-Tac Airport fell from 62 levels to 53 levels. The wind was blowing at 30 miles per hour and 1 / 4 of an inch of rain fell in 40 minutes.
Sunday afternoon was moist within the Puget Sound space as nicely, as showers and thunderstorms swept via Snohomish and northern King County at round 4:30 p.m.
As of Friday, Bellingham recorded 107% of regular rain for all of September. Seattle recorded 86% of regular rain in September, Hoquiam 85%, Olympia 77%, and Quillayute 73%.
Rain totals since Friday and the share of regular rain for your complete month of September. Precipitation map too.
Bellingham 2.16 “(Sept. 2.01”) 107%
Seattle 1.39 “(1.61”) 86%
Hoquiam 2.16 “(2.53”) 85%
Olympics 1.57 “(2.04”) 77%
Quillayute 3.33 “(4.56”) 73% #wawx pic.twitter.com/IqiCID4mUW
– NWS Seattle (@NWSSeattle) September 20, 2021
Wind and rain additionally resulted in as much as 114,000 Puget Sound Vitality prospects being unpowered on Saturday, largely within the South King County space.
Over the previous three months, Seattle has seen an estimated 0.13 inches of rainfall. Had that quantity lasted via September 20, it might have been the bottom sum for the summer time season since 1945.
On a typical September, Seattle averages 1.61 inches for your complete month. Between Friday and Monday morning alone, Seattle ought to develop between 1.5 and a couple of inches in simply 72 hours. Town seemed 1.39 inches in response to NWS Seattle.
Town of Seattle warned that energy outages in some neighborhoods “are sadly inevitable and uncomfortable”. Metropolis Mild advises all residents to prime the batteries in flashlights, tenting lanterns, and “different flame-free backup lighting choices” with a purpose to prime them. You may monitor outages at this hyperlink.
That is all a part of what College of Washington climatologist Cliff Mass calls “the storm we have been ready for” after a summer time of scorching warmth, dry climate, and report forest fires.
“This rain will mark the top of the forest fireplace season within the northwest, the remaining fires will shortly recede with the huge humidity, excessive relative humidity and MUCH decrease temperatures, with peaks falling within the decrease 60s,” predicted Mass in a latest weblog Publish.
Massive September rainfall occasions in Seattle have usually peaked at 1.5 inches for the whole quantity in a day. Ought to the values exceed this threshold, this might signify a brand new each day report for the month.
Mass believes this can imply much more rain within the coming weeks, and cites forecasting fashions that present “much more will come after that”.
This might be a welcome reduction for a lot of West Washington after a summer time that noticed the Seattle space expertise a 51-day collection of rain-free days, setting a 1951 mark for the second most consecutive dry days the town has ever seen . A warmth wave in late June additionally set data for the most popular day ever for Seattle, Bellingham, Olympia and Quillayute, with temperatures between 99 and 108 levels.
Breakdown of the data damaged in the course of the Washington warmth wave
After a moist weekend, it needs to be drier earlier this week, notes KIRO 7 meteorologist Nick Allard, “with just a little extra sunshine”.
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