|Dew Point:||54.1°F (12.3°C)|
|Sea Level Pressure:||29.75" (1007.3 mb)|
Lo 54 °F
Lo 55 °F
Lo 53 °F
Lo 54 °F
Lo 60 °F
Rain likely, mainly before 5am. Patchy fog. Otherwise, cloudy, with a low around 54. Light northeast wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
A chance of rain, mainly after 2pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 66. Southeast wind 3 to 8 mph. Chance of precipitation is 40%.
A chance of rain and thunderstorms before 8pm, then rain and possibly a thunderstorm between 8pm and 5am, then rain likely after 5am. Low around 55. East wind 5 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Rain likely, then showers and possibly a thunderstorm after 8am. High near 69. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 53. West wind 5 to 7 mph. Chance of precipitation is 80%.
A slight chance of showers before 2pm. Partly sunny, with a high near 71. Chance of precipitation is 20%.
Partly cloudy, with a low around 54.
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
surface analysis indicates that high pressure remains over the northern Mid-Atlantic this evening. A stationary front is draped southeast of the area. Dry air associated with the high pressure is continues slowing northward progress and intensity of rain, but not as much as many models expected it to. With the second trough moving northeast into the area and inducing cyclogenesis along the coast, overall chance of rain appears higher than guidance has suggested. While heavy rain resulting in any flooding concerns is certainly not expected, widespread rain looks more and more likely overnight, so will likely up POPS through at least 9Z to likely with the next scheduled grid update in about an hour.
With saturated low levels, fog development is still possible. Lows will be in the 50s.
SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/... Most of the daytime hours of Wednesday will be dry as the coastal low moves away and the wedged high pressure continues to exert influence. A few showers or drizzle may linger through the day in the Allegheny Highlands. It will be cloudy across the entire area with temperatures in the upper 60s to lower 70s.
Meanwhile, dynamic low pressure system will be winding up over the Ohio Valley. Strong low level jet/moisture transport will overspread the area Wednesday night, resulting in a widespread moderate to perhaps locally heavy rainfall. With strong theta-e advection aloft, there may be a few embedded rumbles of thunder as well. If any areas in the mountains overperform on rainfall tonight, it could set the stage for minor flooding concerns, but will have to let the preceding events play out first. Otherwise the system is progressive as the dry slot works northward Thursday morning, with amounts from this wave ranging from 0.5 to 1.5 inches.
Jet energy will be moving off to the east on Thursday as upper level low moves overhead and takes on a negative tilt. Surface low looks to develop over northern parts of the area in response to the forcing. The amount of clearing and destabilization is in question, and if so, how much would overlap with the departing shear. So while showers will be probable by afternoon, the amount and intensity of thunderstorms is uncertain. Rain chances will diminish Thursday night as low/occluded front move to the east.
LONG TERM /FRIDAY THROUGH TUESDAY/... Closed upper level low will continue to move NE away from New England on Friday. Energy behind the upper trough may enhance some showers over our area. Conditions dry out into Friday night and Saturday as high pressure briefly builds over.
Shortwave trough and an approaching warm front will bring rounds of showers Saturday evening and into Monday, as the front stalls near or over our CWA. Cold front approaches from the west Monday into Tuesday keeping the unsettled weather conditions over our area.
High temperatures will be near normal mainly in the 70s and low 80s... some 60s at higher elevations.