On the back side of a high pressure system located in the western Atlantic, mainly dry conditions will prevail across the Triangle today, with times of clouds and sun. Although an isolated afternoon or evening shower or thunderstorm can't be ruled out, most of the time will be dry for outdoor plans. Tropical moisture spreading in from the south and west should arrive late tonight with a shower. On Memorial Day, showers will become more numerous along with a thunderstorm as tropical moisture associated with Alberto reaches the Carolinas. It would be a good idea to have alternate plans during the Memorial Day holiday, which involve spending time indoors. Some of the rain could be locally heavy. Alberto will reach the northern Gulf coast later Monday or Monday night, but the center of circulation should pass well to the west and north of the Triangle later this week. Nonetheless, tropical moisture from Alberto will continue to feed across the Triangle Monday night through Wednesday with waves of showers and thunderstorms crossing the area. Later this week, a frontal zone will sink southward toward the region, which will cause additional showers and thunderstorms.
Have a great day!