Along the North Carolina and Virginia line and into our mountains, the watch is in effect until 6 a.m. Wednesday.
Strong southerly flow is transporting deep tropical moisture into the Carolinas and Mid-Atlantic. Showers and thunderstorms packing heavy rain will continue to march up the Carolinas from south to north.
Temperatures will be coolest today, with highs in the upper 70s. Expect a warm-up by the end of the work week and lower chances of showers and thunderstorms.
By Friday, there will be more periods of sunshine and highs in the mid-80s.
Heading into the weekend, the heat and humidity dominate the Piedmont with highs near 90 degrees.