Another in a series of arctic fronts passed through late Monday. Ahead of the front mild temperatures gave the area a break from the bitter cold of Sunday but it was short lived as the arctic air mass floods the region with biting cold once again. This latest cold blast will be with us for a few days but should not be as severely cold as some of the earlier cold waves this month. Nevertheless, when you head outdoors this morning there will be a significant difference in the air as we start the day off in the single digits for many, especially away from the coast.
Besides the arctic cold the weather map shows high pressure expanding out of southern Canada into the Plains States. This will then shift eastward Wednesday and by Thursday should dominate the eastern half of the country with dry but very cold conditions. This latest cold wave will push all the way to the deep South. Low pressure will develop in the northern Gulf of Mexico and then move across northern Florida and off the Southeast US Coast. Snow and ice is expected across most of the Southeast with significant snows possible all the way to the outer banks of North Carolina. That developing storm system will stay well southeast of Nantucket mid week, however the very latest computer models are tending to bring the track slightly further west and it is now possible that snow could clip Cape Cod and the Islands Tuesday night into early Wednesday. Locally, we will see an increase in clouds but should stay dry as the precipitation shield from this ocean storm stays mostly out to sea.
Otherwise, our week features below normal cold and dry conditions through Friday as high pressure remains in control of our weather through the remainder of the work week. A weak cold front approaches Friday bringing in some clouds but with little moisture to work with it probably remains dry into the start of next weekend.
A disturbance approaches Saturday and with that comes a chance for some light precipitation of snow or rain along with moderating temperatures.
72 Hour Outlook:
Tuesday: Arctic chill is back with high temperatures only in the upper teens to 20 degrees. Sunny skies will give way to increasing clouds later in the day. Brisk west winds may gust to 25 mph, especially through the coastal plain.
Tuesday night: Partly to mostly cloudy and cold. Lows around 10 degrees. West winds diminishing to 5 to 15 mph.
Wednesday: Partly to mostly cloudy early, followed by increasing afternoon sunshine. Still cold, highs in the upper teens to low 20s. West winds 8 to 18 mph.
Wednesday night: Clear and cold. Lows near 10 inland to mid teens across the coast.
Thursday and Thursday night: Mostly sunny day, followed by increasing clouds at night. Not as cold. Highs in the mid 20s to 30 degrees. Overnight lows in the upper teens inland to low 20s coast.