Today will feature the return of overcast skies as our first major Nor’easter of the season begins developing to our southwest. Thankfully, we’ll enjoy a couple hours of sunshine this morning before the clouds arrive from west to east during the midday hours. High temps today will be a few degrees warmer as mild air drifts in on southeasterly winds. The mountains will top out in the low to mid 50’s while southern areas get up into the mid 60’s. You’ll notice a breeze picking up out of the east-southeast this evening, but otherwise today will be a fairly classic “calm before the storm” day. Showers will break out during the evening across much of NH, but won’t become heavy until later tonight.
The heavy rain and strong winds will arrive from the southwest tonight as low pressure rapidly intensifies on approach to Long Island. The heaviest rain and strongest wind will be focused in a band that will arrive in Southern NH between 2 and 3 AM before moving north through Portland around 6 AM and eventually weakening north of Waterville between 9 and 10 AM. This band will bring torrential downpours and wind gusts between 45 and 55 mph, which could lead to some scattered power outages. I’ll have more detailed info on tomorrow’s weather around this time tomorrow morning.