Good Saturday morning…the weekend is here and you probably want to know how the weather will impact your plans?
Well, we have a pretty stagnant pattern in place locally. A trough is moving on-shore the west coast early this morning while another trough is exiting off the New England Coastline. Meanwhile a very weak upper level low pressure is situated in the Gulf of Mexico. Here in the Western Carolinas we lie pretty much in between all of these features therefor the flow aloft is light.
Easterly and now southerly flow at the surface has delivered humidity back to the region after going through most of the work week under pleasant conditions. This moisture was enough to help spark off a few showers late yesterday and the expectation is for more in the way of showers and thunderstorms this afternoon. The main trigger will be differential heating along the higher terrain, so all eyes will shift to the Blue Ridge by early afternoon as a couple storms will perk up. These will be pulse-type storms…which are slow movers that develop, collapse and produce outflow to spark additional storms. Locally heavy rainfall and some lightning are the biggest threats from today’s activity.
One thing is for sure, it will be on the warm side for today as temperatures will reach the upper 80’s to near 90 in the Western Piedmont by around 3 pm today…
Showers and storms will last through sunset before tapering off, that will leave muggy conditions overnight with temps in the upper 60’s to around 70.
Sunday will likely serve as a repeat due to little chance in the features both at the surface and aloft. Differential heating along with any outflow boundaries will be the trigger for afternoon storms. High’s again on Sunday will be in the upper 80’s to near 90 depending on location.