A Cool Late Winter/Early Spring Week

About 10 days ago I said that last week (10th – 16th) would be seasonal M-W, then mild Th, and warm Fri. Sat would return to seasonal. This is how it turned out (based on Harrisburg, Reading, Williamsport climate stations which are the closest to us):

• M, Tu, We – 1-1.5 deg above avg = seasonal.
• Th – 10 deg above avg = mild
• Fri – 21 deg above avg = warm
• Sat – 1 deg above avg = seasonal

​Not bad. Now what about this week? 

I said I believed it would be seasonally chilly at first. I do not believe that will be correct. A couple of days could be chilly, but over-all it should be seasonally cool, about 2-3 degrees below average for the week.  Yesterday started off at 3 deg below average for the date.  A good start to the forecast.

I also said that I felt this week would be “winter’s last stand”.  What I meant, is that the pattern would resemble our winter pattern, not that temps would be in the 20s. It is a very late winter patter this week.

Well, the cool to chilly weather will be there. A very weak system tracked to our south with some very light snow showers, like other weak systems did during the winter. Now a bigger system at the end of the week?  Looks likely. But will it be off shore?  On the coast?  Not sure yet. No matter, it will likely be a chilly rain for us, and some snow further north.  It will be blustery and chilly for Fri and Sat. We had this type of weather in our winter pattern also.

Once past Sat, we should moderate nicely for Sun as we enter a true spring pattern. It can still be chilly. It can be raw and rainy. It can be sunny and warm. But no matter, the pattern will look more like spring than winter. (For example: slow moving cut off low pressure systems. Cut off from the main jet stream and then slowly move east across the country. No real cold air with them. Just cool to chilly with rain and some snow north/west, and thunderstorms/severe weather to the south).

Until then, enjoy.