Synopsis...
Cold and blustery weather continues through the next few days... The lake-effect snow machine will continue to bring a steady light snow to the northeastern regions, and a clipper system is on the way for Thursday. A potent low pressure system will likely bring rain to the commonwealth late on Saturday into Sunday, but the track of this system is very uncertain and the type of precipitation will be determined depending on how far this system veers to the east.
Short Term...
The GFS shows a strong and steady northwesterly wind that will continue through Wednesday. This, combined with temperatures in the mid- to upper- 20s for most regions, will bring really bitter wind chills until then. Lake-effect snow will continue to fall in the northwestern regions of the state through early Thursday according to the WRF - the snow will shut off once the blocked off low pressure system sitting in the Canadian maritime finally moves away. This will, however, allow for a clipper system to move through the commonwealth unimpeded on Thursday. Many areas from this system, based on the current model runs, should expect anywhere from a dusting to an inch or two of snow (more likely in the higher elevations). The windy conditions, regardless, will subside by this time.
Long Term...
Though the skies will still be cloudy by Friday, temperatures will finally rise a bit. According to MOS, most regions by Friday should make it to the low 30s. This is due in part to an approaching frontal system associated with what will be a strengthening low pressure system in the southern United States. This system, according to the 18Z GFS, appears to arrive Saturday evening from the west. Because the track of this system has shifted to the west, the precipitation expected from this system will likely be rain. There is, however, a lot of time to watch this system and come to a final conclusion as to the exact track and strength of this system. For now though, this will be the big thing to watch, and if the track of this system shifts far enough east, this could be our first large snowfall of the season.
Andrew Dzambo
We Are... Penn State Meteorology
Cold and blustery weather continues through the next few days... The lake-effect snow machine will continue to bring a steady light snow to the northeastern regions, and a clipper system is on the way for Thursday. A potent low pressure system will likely bring rain to the commonwealth late on Saturday into Sunday, but the track of this system is very uncertain and the type of precipitation will be determined depending on how far this system veers to the east.
Short Term...
The GFS shows a strong and steady northwesterly wind that will continue through Wednesday. This, combined with temperatures in the mid- to upper- 20s for most regions, will bring really bitter wind chills until then. Lake-effect snow will continue to fall in the northwestern regions of the state through early Thursday according to the WRF - the snow will shut off once the blocked off low pressure system sitting in the Canadian maritime finally moves away. This will, however, allow for a clipper system to move through the commonwealth unimpeded on Thursday. Many areas from this system, based on the current model runs, should expect anywhere from a dusting to an inch or two of snow (more likely in the higher elevations). The windy conditions, regardless, will subside by this time.
Long Term...
Though the skies will still be cloudy by Friday, temperatures will finally rise a bit. According to MOS, most regions by Friday should make it to the low 30s. This is due in part to an approaching frontal system associated with what will be a strengthening low pressure system in the southern United States. This system, according to the 18Z GFS, appears to arrive Saturday evening from the west. Because the track of this system has shifted to the west, the precipitation expected from this system will likely be rain. There is, however, a lot of time to watch this system and come to a final conclusion as to the exact track and strength of this system. For now though, this will be the big thing to watch, and if the track of this system shifts far enough east, this could be our first large snowfall of the season.
Andrew Dzambo
We Are... Penn State Meteorology
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