2:00 PM | ***Next chilly air mass headed to the Mid-Atlantic region for this weekend…additional chilly air masses are destined to push in during the next couple weeks***
Paul Dorian
Chilly air mass #1 arrives in the Mid-Atlantic this weekend with potentially the lowest temperature readings so far this season on early Sunday morning. Map courtesy NOAA, tropicaltidbits.com
Overview
The month of October has gotten off to a very chilly start in the Mid-Atlantic region and there will be another chilly air mass headed this way for the upcoming weekend. In fact, the lowest temperature readings of the season so far could come early Sunday morning, but this will very likely not be the low point of the month. Additional chilly air outbreaks are destined to move from central Canada and into the Mid-Atlantic region during the next couple of weeks and these could very well have an Arctic connection.
The first five days of October featured heavy rainfall and persistent onshore winds in the I-95 corridor and also much colder-than-normal temperatures.
Discussion
The first five days of the new month have been much colder-than-normal in the DC-to-Philly-to-NYC corridor with departures from normal of -9.4 degrees in Washington, D.C., -8.4 degrees in Philly, and -9.2 degrees in Central Park (NYC). After a couple of noticeably warmer days on Thursday and Friday, it’ll turn chilly again this weekend with high temperatures confined to the 50’s on Saturday as compared with 70+ degrees today and tomorrow. By early Sunday morning, temperatures could drop to the lowest levels so far this season with low temperatures in the 30’s in some suburban locations along the I-95 corridor. Looking ahead, it is certainly looking like October may have a difficult time getting back to the normal range in the Mid-Atlantic region as additional chilly air masses are destined to move from Canada to the northeastern quadrant of the nation.
Chilly air mass #2 is destined to push into the Mid-Atlantic region around the middle of the month moving along in a northwest-to-southeast fashion from central Canada. Map courtesy NOAA, tropicaltidbits.com
The second in a series of incoming chilly air masses for the Mid-Atlantic region will travel from northwest-to-southeast late next week reaching the northeastern states by the middle of the month. The same kind of overall weather pattern is likely to push in yet another chilly air mass during the third full week of the month. Incoming chilly air masses #’s 2 and 3 may actually turn out to be increasingly cold relative-to-normal with an Arctic connection – somewhat unusual for so early in the season.
Chilly air mass #3 may push into the Mid-Atlantic region during the third full week of the month moving along in the same northwest-to-southeast fashion from central Canada into the northeastern states. Map courtesy NOAA, tropicaltidbits.com
Meteorologist Paul Dorian
Arcfield
arcfieldweather.com