|Dew Point:||37.7°F (3.2°C)|
|Sea Level Pressure:||30.07" (1018.2 mb)|
Partly SunnyHigh: 47 Low: 37
Light Rain LikelyHigh: 45 Low: 32
Chance Rain And SnowHigh: 35 Low: 23
Mostly SunnyHigh: 36 Low: 21
Mostly SunnyHigh: 31 Low: 20
Partly sunny. High near 47, with temperatures falling to around 40 in the afternoon. Southwest wind around 7 mph.
A slight chance of rain after 9pm. Mostly cloudy, with a low around 37. Southwest wind around 10 mph. Chance of precipitation is 30%.
Rain likely. Mostly cloudy, with a high near 45. West wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain likely. Mostly cloudy, with a low around 32. West wind 5 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain and snow. Mostly cloudy, with a high near 35. West wind 7 to 14 mph. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible.
A slight chance of snow before 7pm. Partly cloudy, with a low around 23. Chance of precipitation is 20%. Little or no snow accumulation expected.
Mostly sunny, with a high near 36.
Partly cloudy, with a low around 21.
Mostly sunny, with a high near 31.
... Multiple chances for light precipitation are expected through the middle of next week with a series of crossing cold fronts.
NEAR TERM /UNTIL 6 AM MONDAY MORNING/... Regional radar shows a band of precipitation south of Lake Erie. This band will slowly progress towards I80 over the next few hours on the north side of a weak low pressure system as it moves into PA from OH. The band of precip should develop further overnight along a low-to-mid level axis of convergence north of the low and in response to a combination of a H5 shortwave clipping NW PA and jet level right-entrance region divergence.
Precipitation type will vary based on surface temperatures... so expect to see a mix of rain/snow as temperatures in the affected region will be near or just above freezing. Any snowfall accumulations will be light and limited to areas along/north of I80. The band will be slow to make it towards Pittsburgh and may diminish altogether overnight before reaching the I70 corridor as it loses upper support.
SHORT TERM /6 AM MONDAY MORNING THROUGH TUESDAY NIGHT/... Another low will track up the Ohio River Valley and into western PA on Monday. Precipitation will once again develop along an axis of low-to-mid level convergence on the north side of the low. Precipitation will be aided by two shortwaves in quick succession as upper longwave troughing across the eastern CONUS deepens. Precpitation type will once again vary primarily with the level temperature field. Precipitation associated with the first shortwave on Monday should primarily be rain, though a rain/snow mixed cannot be ruled out in areas farther north or in the ridges.
A cold front associated with the second shortwave will approach the region Monday night. More in the way of frozen precipitation can be expected with this wave as temperatures are colder. Additionally, some lake-enhanced activity can be expected in areas across the northern CWA. QPF through both events will be light, so any snow accumulation will be minimal and limited to northern or high elevation zones. Precpitation will gradually come to an end Tuesday ngith as drier air infiltrates the mid-levels.
LONG TERM /WEDNESDAY THROUGH SUNDAY/... Another front is expected to swing through the area Wednesday bringing the coldest air of the season. Moisture will be limited along the front, so precipitating activity will likely be confined to areas along/north of I80 and in the ridges.
Dry conditions continue Friday but temperatures are forecast to pop back up closer to normal as ridging builds across the region.