Wind Gusts Will Reduce In The Evening & Snow Showers Will Reach Maine From St Lawrence

Bryan Dijkhuizen

By this evening, cold advection alone will have caused temperatures to plunge throughout the night, with wind chills in northern zones reaching temperatures below zero.

The wind gusts over 40 mph that we have seen today will reduce this evening and gradually fade during the night as the surface high rises.

The cold air that is entering is as hard as we've seen so far this season, and it will continue to form snow shower streamers when moisture from St Lawrence enters the atmosphere throughout the evening.

Typical of advice, it cannot deal with this issue well, and we have aligned PoPs and the snow shower prediction with our cloud cover projection for this evening. This is mainly applicable to northern zones.

The low tops will prevent the showers from being detected by radar even if they are far away from the radar location.

Blowing snow is expected in Aroostook County this evening due to the mix of snow showers and strong winds. Today and into the evening, the blowing snow and moisture freezing on roadways will continue to cause some dangerous traffic in northern zones.

After midnight, winds should have decreased sufficiently to create a reasonably thin inversion over the North Woods and low temperatures approaching zero degrees. Lows will be in the single digits in northern zones and usually in the teens in Bangor and Downeast if you're not in the mountains.

On Saturday, the surface high is forecast to provide some sunshine and soft breezes, but the air mass is so cold that it will be the coldest day of the season so far on Saturday.

The whole region will see highs far below freezing except for the nearby shore.

Northern Aroostook County will struggle to reach 20 degrees Fahrenheit, which is more than 10 degrees below typical on this day. High and mid-level cloud decks will approach from the west on Saturday afternoon, just in time for the next shortwave to arrive.

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