Unlike the bombardment of Pacific systems, record rain and snow this time last year, it’s been a very different winter for the West this year thanks to the persistency of high pressure.
Sierra snow depth last year vs. this year. https://t.co/HoJmcSuVcm pic.twitter.com/CQGNgyCucc
— Mike McPhate (@mmcphate) January 24, 2018
California’s ice box was buried last year!
Remember how much snow was in Bodie last year? pic.twitter.com/M0UCa512WJ
— Mono County Tourism (@EasternSierra) January 20, 2018
Low pressure is now bringing snow to the High Sierra and this weekend shall see a series of lows sweep into the Pacific Northwest in an atmospheric river type setup.
Credit: weather.com
Current system (today)
Credit: Tropical Tidbits
Unfortunately after today’s heavy 1-2ft snows for the High Sierra from Tahoe to Mammoth, the next two systems shall take aim further north over Washington and since the air is blowing from Hawaii, this is more of a pineapple express which consists more of rain than snow below 6,000ft.
Experimental NAEFS ensemble forecast of atmospheric river (AR) precipitable water probablility for PW >= 20 mm (this is one suggested threshold for an AR), valid Sunday morning #YVR pic.twitter.com/wnrFbmtKoj
— Chris Doyle (@ensembleator) January 25, 2018
One of the 1st things I've been tasked to do at @USNRL-MRY is provide some forecast support to an atmospheric river (#AR) recon field campaign in collaboration with @CW3E_Scripps. Looks like a nice upcoming IOP as multiple ARs landfall on the US west coast. Rainy times ahead! pic.twitter.com/D5R2cQoLpJ
— Philippe Papin (@pppapin) January 24, 2018
Credit: Tropical Tidbits
Credit: Tropical Tidbits
As well as significant rain and high elevation snow, expect hurricane-force winds on the coast and over exposes ridges.
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