Wednesday 6:10am. A low pressure system over northern Maine will remain quasi stationary over the next 36 hours. The low will dissipate over the Maritimes late Thursday. A zonal flow will develop across the region beginning on Friday but a number of difficult to time upper air disturbances will cross the region over the weekend. This will result in a threat of showers and thundershowers through the forecast period. High pressure will build in for Tuesday.
Precipitation..Few showers possible this afternoon and again tomorrow associated with the low pressure system. Then showers are possible every day through Monday.
Thunderstorms. Risk of a thundershower exists every day through the end of the weekend.
Wind.. A light/brisk southerly flow will gradually shift to westerly on Sunday.
Temperatures.. Will be normal for today and tomorrow then begin to increase along with the humidity beginning on Friday.
Today..Generally cloudy with a few sunny periods, Chance of a shower/thundershower, light south winds, highs 20.
Tonight.. cloudy with showers/drizzle, light south winds, lows 14.
Thursday.. cloudy with a few sunny periods, chance of a shower/thundershower, light south winds, highs 20
Friday-Monday.. Mix of sun and cloud, chance of a shower/thundershower, light south winds shifting to westerly on Sunday with highs mid 20′s.
Tropics.. Tropical depression Debby is moving off the east coast of northern Florida and is expected to intensify over the ocean as it tracks to the northeast. The storm is not expected to effect Canadian waters.
Summary.. Stalled low over Maine will give a threat of showers and thundershowers til later Thursday before dissipating. Showers and risk of thundershowers will exist all week as an unstable airmass combined will a series of upper air disturbances cross the area, Temperatures will be climbing beginning on Friday.