Chilly One Today…Rain Expected Tomorrow and Tomorrow Night.

After a soaking rain Sunday night, colder air built into the region throughout the course of the day on Monday as our up and down temperature pattern continues.

While readings briefly rose to the lower and middle 40s across a good chunk of the Cape during the late morning and midday hours of Monday, cold air began to infiltrate the area in earnest later in the day. Temperatures responded accordingly, falling quickly into the 30s Monday afternoon and to the freezing mark by dinnertime and shortly thereafter. Temperatures continued to fall overnight and we’ve started our Tuesday on the chilly side, with temperatures in the lower and middle 20s.

Another Soaking Rain. Courtesy PivotalWeather.Com

With increasing high clouds and little in the way of returning warmth, temperatures will hold in the 20s this morning and will eventually top out in the middle 30s this afternoon – cool but not too far from where we “should be” this time of year.

Clouds will continue to lower and thicken as we move into Tuesday night and we should be greeted by mainly overcast skies Wednesday morning as our next weather system approaches the area from the west. This storm is destined to bring us another round of wet weather later tomorrow and into tomorrow night, with snow confined to the interior portions of New England.

Low pressure over the Southern Mississippi River Valley today will ride northeastward tonight and press into the Mid-Atlantic and Southern New England on Wednesday. The surface low pressure is expected to ride right along the I-95 corridor of Southern New England, trekking through Southern Connecticut and then across Rhode Island and Eastern Massachusetts Wednesday afternoon and evening before passing through the Gulf of Maine Wednesday night.

With the storm passing to our west and retreating high pressure situated to our east, we are ensured that Wednesday’s storm will be a mainly rain event here on the Cape and Islands and over much of coastal Southeast Massachusetts. While precipitation may initially fall in the form of snow or a mix of snow, sleet and freezing rain (perhaps a coating of snow across parts of the Cape and maybe an inch or two of snow on the other side of the bridge), milder air will quickly overtake the region on southeast winds and flip any frozen precipitation over to rain. This storm looks to be another solid moisture producer, with rainfall totals of .5 to 1.5 inches expected across the area.

If you’re looking for snow, take a drive deeper into Southern New England…or better yet…head north and westward into ski country. In these areas, cold air will linger throughout much of the upcoming weather system and most, if not all, of the precipitation will fall in the form of snow. Some higher terrain regions could approach 10 inches of snow by the time Wednesday night is done. The National Weather Service’s snowfall forecast should be a fair approximation of how things shake out:

Courtesy NWS Taunton

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