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WEATHER BLOG: Dry Today

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Tim Williams 370x278

Aside from a stray afternoon t-shower, mainly southern parts of area:
– Thickening clouds yields showers and some thunderstorms tonight, Monday and Monday night
– Partly sunny, a lingering t-shower in spots on Tuesday
– Higher than normal uncertainty for Wednesday-Thursday, but leaning toward mainly dry on
Wednesday with rain, gusty thunderstorms a better bet for Thursday
– Friday partly sunny, mainly dry
– Dry and turning warmer next weekend

Skies have become mainly clear across the region early this morning as all moisture from former Tropical Storm Andrea has departed into the Canadian Martimes and high pressure resides over Pennsylvania. Rivers and streams across the area will continue to slowly subside today with dry weather and partial sunshine as the high reaches the Northeast Coast. Temperatures will peak near normal. A stray thunderstorm will erupt later this afternoon in parts of the area, especially southern sections. A vigorous jet stream disturbance currently over the Plains will reach the Ohio Valley early Monday and cause low pressure to develop near Lake Michigan. A warm front attached to the low will move from southern Ohio to SE PA late in the day while a trailing cold front moves east across the Ohio Valley. Moisture gathering along the fronts will result in mainly cloudy conditions for Monday with showers and thunderstorms arriving Monday morning. Showers, some heavy will occur into the afternoon and into Monday night. Precipitable water values near 2″ and the slow movement of the disturbance/low/warm/cold front will bring an opportunity for rainfall of 1-2″ … which could result in some minor flooding in locations saturated from Andrea’s rain.
Drier weather returns for the much of the remainder of week though the threat for a few thundershowers will persist.

A lingering shower or thundershower will be around on Tuesday as the center of the aforementioned jet stream disturbance as its associated pocket of cold air aloft renders the atmosphere unstable with daytime heating.

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