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. We can also expect more scattered showers coming our way through Tuesday morning and then skies will begin to dry some.
The second half of the week is showing solid indications that this pattern will be breaking down as the upper level low will finally depart the Canadian Maritimes! There is a possible problem though, as a coastal storm will be developing for the end of the week. One of our long range computer models brings it right up the coast and gives us a decent storm for Friday, while several others project it staying further south and east. Right now, it looks to me like that it will end up being a close miss with just a shower threat for Friday, but obviously you will want to check back often and tune 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 4 as High pressure builds off the mid-Atlantic coast! I’m talking highs in the 70s and POSSIBLY 80 by May 5! That is quite a ways out in time so we’ll see how things play out.
Bill Gile | Meteorologist
New Hampshire One News