With the holiday weekend almost done it is time we look ahead in the long range. The flip to a warmer pattern has taken hold and will continue throughout this week with above average temperatures. We could see another day of temperatures well into the 60s which will be on Thursday. Then afterwards we look to go into a very active weather pattern with several storms that will be coming in across the Pacific and heading across the country. I was my original contention that there is still time and and opportunity for one or two more snow events in the northeast and while they do appear to be long shots, the possibility is still there.
Even though the overall weather pattern favors stormy and colder in the west there is a difference this time around in that the East Pacific Oscillation is going to be in a negative state. This tends to favor a colder look across the United States including the East. The off the wall negative Pacific North America Pattern index (PNA) will be extremely negative. A positive PNA is usually cold and and stormy in the east so the extreme negative readings would suggest it being cold and stormy in the west and that the cold air would extend pretty far south to California. It is an odd combination we are seeing here. There is no blocking to speak of in the Atlantic so that makes cold air transient in nature. So we will watch several storms move across. Weather models are showing one for early next week where the GFS has a well developed low moving into the Ohio Valley while the European has a colder though much weaker look....READ MORE AT http://www.meteorologistjoecioffi.com/index.php/2017/02/20/stormy-weather-pattern-developing-ahead/