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This update is presented by Allspeed Cyclery and Snow, located on Brighton Avenue in Portland, where their Mid-Winter Clearance sale is going on now! Check them out at allspeed.com! PTW is also follower funded by readers like you. Please consider a donation for the kind of weather coverage you won't find elsewhere. It is only because of followers and business partners that this website continues. Thank you for making my efforts worth it! Winter storm warnings cover the entire state The National Weather Service has freshened up the bulletin board, and I have also. End times for precipitation are in conjunction with winter storm warning expiration, although it may happen within an hour or two before. This continues to be a long duration event, with some areas getting all four precipitation food groups along the coast, and a big dump for The County. The general idea on outcome remains the same Looking purely at the snow aspect of this, outside of a subtle tweak to the state's crown, the general idea for snow stays the same. Due to fluctuating snow-to-water ratios (SLRs) with the warm nose moving in, sleet, and freezing rain eating up potential snowfall, I am good with this idea. Where the cold holds aloft, there is a bit more snow. Where the warm nose comes in quicker, there will be less white stuff. With the changing SLRs, snow is going to compact and turn to slop closer to the shorelines.  The timing of the switchover to junk begins mid to late morning over the south and expands northeast to Bangor and DownEast areas by roughly mid-afternoon. There are no changes to the precipitation type idea posted here on Saturday. I will forewarn that some areas could pick up 1-1½” of sleet. For those with a metal roof on their house, have noise-canceling headphones ready, as it could dump at times, and it may sound like a freight train. The threat of ice continues to be a moving target in conjunction with the coastal front. Most if not all areas that see junk see it end as snow. Power outages are possible. Today is an mPING day... please report precipitation type It's easy, simple, free, totally anonymous, and extremely helpful in junk storms like this. Your forecasters thank you in advance! The wind is going to crank Sunday 7 AM (12z) to Tuesday 1 PM (18z) – The wind direction out of the northeast rules most of the day, with wind gusts in 30-40 mph along the coast. As the secondary low gets organized, it skirts the shorelines Sunday night into the wee hours of Monday. With the new low going through rapid intensification and running into an atmospheric roadblock upstream, it will sit near Newfoundland. The result for Maine will be strong wind out the west/northwest with gusts of 40-60 mph, stronger on Monday but stiff through Tuesday. Along with the wind comes the wind chill, which will run double digits below zero in the mountains and north and around zero along the coast. All of the fresh snow in The County is expected to blow around, creating dangerous travel in the agricultural fields and other wide-open areas. Outlook into the week A storm is expected to fire up and impact the Mid-Atlantic and Southern New England midweek. While the general idea is for a complete miss of the region, there are enough ensemble ideas near the benchmark “B” that have piqued my interest enough to keep an eye on it. With the pattern we have been in over the past two weeks, it would not surprise me to see this idea trend closer. This will be monitored and updated. Expect another chilly week with below normal temperatures continuing.  The Weather Wall with all your daily information, |
Mike Haggett
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