Friday, August 16, 2013
Sunday's Southern Showers
The frontal zone off of the Carolinas lurks and looms for the weekend as a partial player...and on Sunday, a dampener...in the weather pattern as a wave of low pressure organizes and rides northeast along the front. At this point, it doesn't look like the front will entirely absorb the tropical morass near the Yucatan but it pull some of the moisture from it northward, thanks in part to a weak upper level low in the Gulf of Mexico acting as a channeling mechanism to pull moisture towards the front.
The story this weekend is gradually increasing clouds, especially in the latter half of Saturday, as moisture is pulled north. At this point, it looks like the city and points north are dry on Saturday. Delaware Beaches and the Shore should also be dry but a shower can't entirely be ruled out late, late in the day.
The little wave of low pressure will develop and impact the Shore and Delaware Beaches Saturday night into Sunday, yielding a wet latter half of the weekend. There's some question on how far north rainfall gets but it looks like the bulk of it, again, remains south and southeast of the city.
Sunday will be unsettled at the Shore and in Delaware...at minimum cloudy for Philly and points north. Showers can't be ruled out for the city and immediate burbs but the steadier rainfall, at least on Sunday, stays to our south. The frontal zone lingers around into Monday and shower chances will remain in the forecast to start next week, in the case of Monday those shower chances exist for everyone.
Rainfall to our south on Saturday night into Sunday has a shot of exceeding an inch in spots -- best chances of that are probably in Southern Delaware. As one progresses north, rainfall amounts...and then gradually rainfall odds...decrease.