General pattern of below normal heights over the northeast and southern Canada is expected to continue for the next ten days. This will keep stormy weather and below normal temperatures in the region.

Wednesday... A continued onshore flow provided by inverted surface trough will keep clouds over eastern New England. Shortwave drops into the region with the core of cold air aloft overhead. This will provide enough instability for another round of showers and thunderstorms toward the afternoon. Vertical shear will be less robust than today, nevertheless cannot rule out a few strong to severe cells. Abundant moisture will allow for very heavy downpours to accompany thunderstorms.

Thursday... High pressure noses south into New England. We'll deal with low level moisture early. Otherwise should clear out in the afternoon. Early clouds and 850mb temperatures under 10C will hold highs to the low 70's.

Friday... A warm up. Surface high pressure will be in control over New England with mid level ridging sliding east through the day. Partly to mostly sunny skies should help highs into the upper 70's.

Saturday... Next system moves in from the west, dragging a cold front through the region in the afternoon. Warmer temperatures should surge northward out ahead of the front, so despite increasing clouds, we could touch 80 before storms move in. We'll have to monitor severe potential.

Sunday... front will clear the area in the morning. Upper level low will be further north than the previous series, so we will not have the same instability and moisture is also indicated to be on the low side. Overall, could end up being a nice day, but moisture levels remain to be seen.

Monday and Tuesday, the upper low drops further south into southern Quebec, and cold air aloft centers back over the region. Still, looking at relatively low available moisture. Could be an afternoon shower provided any increase in moisture. 850mb temperatures will be well below normal, so we'll need sunshine to push into the mid 70's.

Upper low lifts northward on Wednesday, giving way to more zonal flow across the nation. Weak disturbances will move quickly through. Heights will still be supressed southward, so continued below normal temperatures.