Light snow has moved into the region and will continue throughout the night, giving the entire forecast area a steady, accumulating snow for the entire area. An Arctic high will fill in behind the departing storm, leading to some of the coldest conditions we will see this year. Conditions will remain calm but cool into the first part of next week.
Short Term…
Clipper-esque system coming out of the MW is poised to deliver a LT to MDT snowfall. 18z WRF is going with 0.25-0.5 QPF for most of PA, but ensembles show a slightly lower total. NWS seems on the ball with a general 2-5" snow, with heavier totals in the hilltops and NEPA. I could see this being a little too low given low temps aloft, indicating high snow ratios. Pretty good agreement with exit timing…expect only lingering SNSH, esp in the Laurels and NE. Tight press gradient will lead to breezy conditions and blowing snow. Arctic chill sets in following the storm, with some lingering lake-effect and upslope SNSH in the west.
Long Term…
Big story Fri-Sun will be frigid conditions. Temps will struggle to reach 20 across much of PA during the wknd, with subzero temps widespread during the night. New indications show that normally colder locations may go below -10 or -15F. Mcldy to Pcldy cndtns dominate the rest of the period before the next system works its way in for midweek. Still a long way out, but it looks like an interesting pattern shaping up (keep an eye on Euro).
No comments:
Post a Comment