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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! Thursday storm departs with a cold, windy wake The state is in store for a blustery day to wrap up the traditional work week. A wind advisory is in effect through Friday evening, with wind gusts as high as 45-50 mph possible. This may cause isolated power outages and blow snow around The County. Whiteout conditions and drifting snow could make travel dangerous throughout the day. Wind chill values in the teens below zero to single digits above are expected through the daylight hours. A cold weather advisory has been issued for northern areas overnight into Saturday morning. As the breeze continues, wind chill values could be as low as -30°. The wind slacks off Saturday morning as high pressure passes through the region. It promptly exits stage right ahead of the next storm, which will be on its way Saturday night through Monday morning. Forecast track and timing for the next one Forecast Map for 7 AM Saturday The storm that passed through the region on Thursday reorganizes and bombs out to the east of Newfoundland, which sets up the roadblock for the storm that will affect the region for the second half of the weekend. This is expected to be a coastal hugger and track into the Bay of Fundy by Sunday night and intensify as it heads for Prince Edward Island.  Saturday 4 PM (21z) to Monday 1 PM (18z) - Precipitation begins over southwestern areas Saturday night, with the first flakes falling over the north by Sunday afternoon. Precipitation ends over southwestern areas in the wee hours of Monday and over eastern areas by around daylight. The steadier snow exits the north by around noon. Snow showers are expected to continue over the western mountains and The County until evening. Precipitation type and amounts for the coast in questionAs discussed over the past couple of days, this will be a good snow event for the mountains and north. Questions remain on precipitation type amounts to the south and east. Going under the hood of the operational model output, the margin is razor-thin and has everything to do with the warm nose poking through and at what altitude.  The European model idea has been consistent with the warm nose intrusion around 5-6,000 feet, which sets up an icing signal.  On the flip side, the GFS idea presented here along with the Canadian GEM show a sleetier outcome, with a bit of ice. With a track slightly further to the southeast, the warm nose that pokes through does so a higher altitude (6-7,000 feet) which will allow the liquid to re-freeze before it reaches the surface. The bottom line here is the closer to the shoreline you are, the trashier the potential outcome is. Track is going to be key.  The overall trend indicates roughly 1” of liquid equivalent across much of the state. Snowfall amounts and ratios are reflected in the totals, but there is some play there, and that is where the bust potential comes in. Upwards of 1” of sleet and/or ¼”+ of ice could throw a wrench into snowfall amounts for the coastal plain. Concerns continue in the aftermath for power outages in areas where snow and ice stick as the wind cranks up Sunday night and remains stiff through Tuesday. Stay tuned. The Wall has the latest 24/7... PTW continues only because of YOU! Always have MULTIPLE ways to receive weather alerts. Stay aware, stay on alert, and stay safe. - Mike PRINT MEDIA: Feel free to quote and cite my work here for your stories. Please give me the professional courtesy of knowing that you are referencing my material so I can read your final product and acknowledge it on my media and link it on the PTW IN MEDIA page here on the website. Feel free to send me a message via the Facebook page or Twitter (X) to get my phone number if necessary. Thank you! NOTE: The forecast information depicted on this platform is for general information purposes only for the public and is not designed or intended for commercial use. For those seeking pinpoint weather information for business operations, you should use a private sector source. For information about where to find commercial forecasters to assist your business, please message me and I will be happy to help you. |
Mike Haggett
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