A wet Nor'easter on the way late week Most of the pieces for the late-week storm are on the continent, with the one wildcard piece being the kicker offshore of British Columbia. Once that gets onshore, upper air soundings will help clarify the fine details for how Thursday through the weekend plays out. This blocky spring we have experienced is apparent in this well-anointed low-level water vapor image. A major block to the east of Greenland is holding up the train, allowing three decaying upper lows (aka atmospheric trash) to spin around eastern Canada with high pressure caught in the middle. This keeps Maine unsettled for one more day with clouds and isolated showers around the region. Temperatures will cool down through Friday as troughing builds in from the west again. The weak ridge that keeps the region dry on Wednesday quickly erodes. This sidearm knuckleballer of an upper-low over the Midwest will bring the wet Nor'Easter Thursday into Friday. This isn't your typical setup for anything significant. The moisture stream feeding into it appears to be well east, which will limit rainfall to a certain degree. The general idea of ½-1" of rain for the coast with lesser amounts over northwestern Aroostook continues to be the general idea that will be fine-tuned. I am not expecting flooding concerns, but periods of heavy rain could cause standing water on roadways and reduced visibility. I am not overly concerned with wind, although the coast may see gusts of 30-40 mph, which may cause isolated power outages, because, you know. Gusts over land may range 20-30 mph. The early estimates on seas run 4-7' in an off-astronomical tide period, so I don't expect problems there. The bottom line is this is just a raw, damp late spring nor'easter that is more annoying and bad timing than anything else. Saturday appears to have the highest chance of showers over the Memorial Day weekend. For those headed to the mountains and north to escape, rain gear may be needed for shower chances Sunday into Monday, with perhaps the risk of a thunderstorm. High temperatures will likely jump 15-20° from Friday to Monday as a warming trend kicks in that will continue through the rest of the month. Stay tuned! The Weather Wall updates 24/7 Your support of PTW 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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