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Today's updated is presented by Allspeed Cyclery & Snow in Portland. Whether it is late-season deals on ski equipment, time for a new bike, or a tune-up on your current one, check them out at https://www.allspeed.com/ PTW continues to look for new business partners and individual donors in order to fund current operations and for future expansion. For more details, please check the donate page, and thank you in advance for your support! Because winter isn't done with us yetThe transition to spring is coming, but it will be slow in arrival. As much as I would like to say we're done after this, I am not quite ready to stick a fork into winter yet. There is too much cold air to the north, and given our latitude along the 45th parallel, that keeps snow and junk potential on the discussion board for at least another couple of weeks. For those longing for warmer times, your patience may be tested, but it will come.  The Winter Weather Advisories posted over the region end by 2 AM Wednesday for areas west of Penobscot Bay and by 4 AM for areas to the east. A Wind Advisory for parts of southwestern areas begins at 4 PM and runs through midnight. A complete list of the bulletins for start times and impacts can be clicked on here. For future reference, this link can be found on the PTW Weather Wall page that can be accessed 24/7.  Tuesday 6 AM (10z) to Wednesday 8 AM (12z)--Two things are going on here. First, the frontal boundary that crawled offshore Monday retrogrades into the Gulf of Maine due to blocking to the east and low pressure forming along it. Second, low pressure to the west near the Great Lakes slides to the east. Add in a strong upper low over Ontario that is tracking to the southeast, and the combination of it all adds energy and juice to the atmosphere. The NAM3km model idea for 1-hour snowfall rates from 2 AM (06z) Tuesday morning run shows the potential for areas where accumulations could be heavy in the afternoon into the early evening. These "deformation bands" may cause whiteout conditions and slick conditions due to intense snowfall rates. The consensus of model ideas highlights the potential from roughly Jackman over to Millinocket south, the Route 2 corridor in the west to the Route 9 Airline over in the east. As warm air gets pumped in from the south, I can't rule out the risk of some junk being mixed in along the coastal front, but this is predominantly a snow/rain event.  While the snowfall map has been adjusted slightly, the ideas around bust potential remain the same. The higher elevations see drier snow, thus more accumulation. The valleys see wetter snow due to marginal surface temperatures in the mid-30s, which leads to sloppy compaction. Outside of cleaning vehicles off of snow, use your discretion for plowing. Temperatures are on track to warm up heading into the weekend, and with a soaker on the way, the snow that comes out of this will melt.  Wind concerns are primarily over southwestern areas, and the risk of power outages is isolated. The 925mb wind speeds (~2,000 ft) from the HRRR model show the potential for 40-50 knot speeds that may mix down to the surface. While the wind advisory runs between 4 PM and midnight, the risk of 50 mph gusts is very low. Surface gusts of 25-40 mph are the more likely outcome. The PTW Weather Wall has the latest information... Your support is greatly appreciated! 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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