Weather Pattern Discussion...Cold Blast And Snow For Some!

Hello this is Junior Meteorologist Kyle Elliott with our weather pattern discussion...and there is a lot to talk about today in the way of chilly air and possible first flakes for many regions across the Northeast and Mid-Atlantic regions of the country. When I woke up this morning, I awoke to a sea of white across my lawn and a reading on my thermometer of 19 degrees. This, by far, was the coldest morning of the season here in southern Pennsylvania, and we were not alone as the I-95 corridor saw there first frosts of the season as temperatures dipped as low as the upper 20s to around 30 degrees in many locations from NYC to Washington, D.C. Temperatures rebounded nicely today, though, as highs recovered into the 50s and 60s for most areas south of the New York Thruway. After another halfway "mild" day tomorrow for areas east of the Appalachian Mountains, another blast of chilly Canadian air will affect the entire forecast area as high temperatures struggle to reach the upper 40s across Pennsylvania on Wednesday. Low temperatures Wednesday night will dip into the teens across the Northeast region, and 20s will be felt as far south as the Maryland/Virginia border. This WILL be the coldest air of the season for most places, and a couple of snow showers could possibly accompany this blast of cold air tomorrow for places such as upstate New York, Vermont, and New Hampshire. Surface temperatures during the day will be marginal at best for these snow showers to occur, but somebody should at least see a couple of flakes if not a quick dusting of snow as the front passes through the area late tomorrow afternoon. If you live south of the New York Thruway, though, do not look for much if anything in the way of snow flurries as surface temperatures should be far too warm to support snow. It is interesting to see this cold of air this early in the season...I must admit that much. The 18z GFS last evening (which can be seen on my post from yesterday) also showed a potential blizzard for Pennsylvania and New York around October 29th, and even though that model is notorious for showing major snowstorms that never come true, it is still fascinating to see the model outputing this much snowfall this early in the season. Now of course, the 18z GFS this evening showed nothing in the way of snow around that timeframe, and I agree with the solution tonight, but it is definitely something that bears watching as an arctic blast of air will come in behind the main storm system. With gusty northwest winds and arctic air coming across the warmer waters of the Great Lakes, THAT will be the more likely time that most everybody west of the I-95 corridor could see there first appreciable chance at a dusting of snowfall. It's still a long ways out, but it's definitely something to keep a close eye on. As far as the short-term goes, though, watch for a chance at some light snow showers across far northern New York State through VT, NH, and Maine tomorrow...and everybody across the forecast area should prepare themselves to experience the coldest night of the season so far this coming Wednesday. Other than that, the weather is pretty quiet around the area right now as the chill and first chances at snow are about the only games in town. So that's about a wrap on things this evening, so hope ya'll have a great night and I'll update again tomorrow! This is Junior Meteorologist (Storm Tracker) Kyle Elliott reporting for the AKStormtracker Forecasting Center!