Yes, it’s going to cool down, and yes, Seattle’s National Weather Service added excitement over snow by mentioning the possibility on Twitter Monday night.
Unfortunately, according to meteorologist Dana Felton, it’s not really that likely.
“As hard as it is not to get too upset about it at this point – because (snow) is the magic word – the best chance right now is that snow depths could be up to 500 feet if rainfall occurs in the area in the morning hours” , he said.
After one of the wettest and sixth warmest, starting in Seattle in 77 years in Seattle – with temperatures closer to our normal April 1 high of 56 degrees, it will gradually cool this week, Felton said.
The drop in temperature from a cooler system coming from the Pacific will be gradual: 48 degrees on Tuesday, 46 degrees on Wednesday, and so on, until we hit what is likely the coolest day, Sunday at 40 degrees, Felton said.
“It will be below our normal high of 48 degrees, but it won’t be ‘cold’,” he said. “People don’t think highs in the bottom 40s are cold.” They think it’s January. “
By the way, cooler temperatures in January say nothing about the rest of the winter, he said, although sub-par temperatures are a feature of La Nina and usually come in around now.
The average temperature in January for 2018 through 2020 was 45 degrees, and that said nothing about the rest of the winter, Felton said. He also looked in vain for a connection between the wet beginning of the year and subsequent rainfall.
Even if it rains lightly on Thursday or Sunday and there is likely to be rainfall, there probably won’t be much, he said.
The 6-10 day outlook from @NWSCPC shows a high probability of temperatures below normal. This could bring with it the possibility of lower snow values and some snow probabilities in the lowlands. Where, when and how much? Too early to speculate on the details, but stay tuned! #wawx pic.twitter.com/OqF1O7V6Zw
– NWS Seattle (@NWSSeattle) January 18, 2021
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