NH1 7Day Forecast For Monday April 25, 2015
It's official! Ice Out on Lake Winnipesaukee was declared 4:34 Friday afternoon. Boating season is now officially underway! The last holdout was some lingering ice in Wolfeboro Bay. Dave Emerson of Emerson Aviation flew over the Lake Friday to confirm. Ice Out is declared when the ice melts enough to allow the M/S Mount Washington cruise ship to navigate between Alton Bay, Center Harbor, Weirs Beach, Meredith and Wolfeboro. They have been tracking the official Ice Out since 1887. Most Ice outs are declared in April. The latest was May 7th, 1887....the first year Ice out was declared.
Meanwhile, the mountains have been seeing snow the past few days! Mount Washington has recorded over 8" of snow in the past 72 hours, reporting mid-February conditions. Because of this recent snowfall there is a considerable/moderate Avalanche danger for Tuckerman's Ravine, Mount Washington and the Presidentials. Please use extreme caution if you are planning on doing any mountain climbing or late season skiing in these areas and to come with supplies and friends. Otherwise, it may be best to wait for another weekend if possible.
Our weather continues to be controlled by a typical early springtime pattern for New England in which a big upper level low sits over the Nova Scotia region and supplies us with plenty of cool air aloft and at the ground level as it rotates around that system. As we discussed last weekend this type of pattern often takes 10-14 days to begin breaking down and this will be no exception! So, we’ve completed one week already and there are still several more days of close to or slightly below normal temperatures coming our way. Thus, we can expect morning sunshine followed by lots of midday clouds and isolated afternoon showers and sprinkles or mountain flurries.
However, by the second half of the upcoming week there are solid indications that the break down in the pattern will start to occur and the upper level low will finally pull away! There is a possible problem though as a coastal storm will be developing for the end of the week. Right now, it looks like that will be a close miss for Friday, but obviously you will want to check back often and turn into NH1 news for the latest details and updates. The good news is that once that system passes by it looks like a lot of warm air will be heading into New Hampshire starting around May 3 or 4! I'm talking highs in the 70s!
Bill Gile | Meteorologist
New Hampshire One News