Wednesday morning’s gray and murky conditions will give way to clearing skies over the course of the morning hours…with partly to mostly sunny skies anticipated throughout a good chunk of the day. Temperatures will respond nicely to the developing sunshine, climbing through the 40s and peaking in the upper 40s to lower 50s around the area – marking another day of well above normal temperatures. Enjoy it…as conditions are about to change.
Low pressure will advance into New England tonight and cut through the six state region Thursday morning (preceded and accompanied by some light rain overnight tonight and first thing tomorrow morning) before shifting into the Gulf of Maine Thursday afternoon. On the backside of this storm center – which will deepen considerably as it passes our region – strong northwest winds will develop and MUCH colder air will pour into the area. Temperatures in the 40s Thursday morning will fall into the 30s during the afternoon…then plummet to 15 to 20F by Friday morning. Temperatures are likely to hold in the 20s throughout Friday. All the while, north to northwest winds will howl, frequently gusting over 40 mph and likely gusting to near 50 mph for a time Thursday evening on the Outer Cape…driving wind chill values down to the single digits above and below zero. While this isn’t extreme for this time of year, it will certainly feel very cold thanks to the recent run of warmth.
One thing to watch: the combination of incoming arctic air, a north to northwesterly wind and “mild” sea surface temperatures will likely yield ocean effect clouds and perhaps some snow flurries or snow showers Thursday night and Friday. The best bet for this would be east of Hyannis.