Synopsis...
Rain is in store for us tomorrow. Colder temperatures will build in for the weekend, with a few flurries and/or snow showers possible. By Sunday, a strong ridge will be in place, giving the commonwealth slightly warmer temperatures for the beginning of next week with picture perfect skies!
Short Term...
According to the WRF model, tropical moisture associated with an upper-level disturbance near the Gulf of Mexico and a cold front moving down from Canada are helping to push a widespread swath of rain into the state early Thursday morning. MOS outputs indicate most regions in the state will receive anywhere from 0.35-1" of rain from this system, with locally heavier amounts in the southern and eastern regions. The rain should start clearing out by the early evening in the southwestern regions, and should be clear of the commonwealth all together by early Friday morning. Friday will generally be cooler and a bit breezy as a northwesterly flow builds in behind the passing low pressure system. Regions in the extreme northwestern regions may see a flurry or a light snow shower, but nothing significant. Regardless, a scattered shower is still possible but most regions will remain cloudy on Friday. From Friday evening on, gradual clearing is expected, though temperatures will barely make it into the 40s on Saturday. Expect partly cloudy skies for most regions on Saturday. Also, a flurry or rogue snow shower is possible early Saturday morning.
Long Term...
Nothing really exciting in the long term... Morning lows Sunday morning will break 30 degrees for many regions, but temperatures should rebound to the low 40s in the wake of sunny skies. A high pressure system will be building in from the south on Sunday, which should build in a southwesterly flow in by Monday, allowing temperatures to warm up by the beginning of next week. Overall, from Sunday and beyond, a strong ridge looks to hold in place. The models do suggest a shortwave trying to sneak its way under this ridge, which MOS is picking up on. For this forecast, I'm leaving rain out on Monday but could be a possibility on either Tuesday or Wednesday.
Andrew Dzambo
We Are... Penn State Meteorology
Rain is in store for us tomorrow. Colder temperatures will build in for the weekend, with a few flurries and/or snow showers possible. By Sunday, a strong ridge will be in place, giving the commonwealth slightly warmer temperatures for the beginning of next week with picture perfect skies!
Short Term...
According to the WRF model, tropical moisture associated with an upper-level disturbance near the Gulf of Mexico and a cold front moving down from Canada are helping to push a widespread swath of rain into the state early Thursday morning. MOS outputs indicate most regions in the state will receive anywhere from 0.35-1" of rain from this system, with locally heavier amounts in the southern and eastern regions. The rain should start clearing out by the early evening in the southwestern regions, and should be clear of the commonwealth all together by early Friday morning. Friday will generally be cooler and a bit breezy as a northwesterly flow builds in behind the passing low pressure system. Regions in the extreme northwestern regions may see a flurry or a light snow shower, but nothing significant. Regardless, a scattered shower is still possible but most regions will remain cloudy on Friday. From Friday evening on, gradual clearing is expected, though temperatures will barely make it into the 40s on Saturday. Expect partly cloudy skies for most regions on Saturday. Also, a flurry or rogue snow shower is possible early Saturday morning.
Long Term...
Nothing really exciting in the long term... Morning lows Sunday morning will break 30 degrees for many regions, but temperatures should rebound to the low 40s in the wake of sunny skies. A high pressure system will be building in from the south on Sunday, which should build in a southwesterly flow in by Monday, allowing temperatures to warm up by the beginning of next week. Overall, from Sunday and beyond, a strong ridge looks to hold in place. The models do suggest a shortwave trying to sneak its way under this ridge, which MOS is picking up on. For this forecast, I'm leaving rain out on Monday but could be a possibility on either Tuesday or Wednesday.
Andrew Dzambo
We Are... Penn State Meteorology
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