Myrtle Beach weather stayed mostly dry during the day, but Sunday was designated a First Alert Weather Day as Isaias was expected to bring heavy rain and flooding concerns to eastern North Carolina. Rain held off long enough for events to continue, then the heaviest rain was expected overnight and into Sunday.
Isaias and eastern North Carolina
Overcast skies remained through the day, with temperatures in the mid-70s and lows in the 60s. Humidity increased slightly, and winds returned from the southwest at 5-15 mph. Later in the day, a few light showers and storms were expected to move through the region before the heavier rain arrived.
Flooding was expected to be the main issue from Isaias, with high water posing problems in poor-drainage areas. People in those areas were the ones most likely to deal with standing water first, because the forecast called for the most intense rain after the quieter daytime stretch.
Overnight and Sunday
The forecast showed a delayed hazard: rain held off during the day, but the strongest bands were expected overnight and into Sunday. That timing matters for people in low-lying or poor-drainage spots, where water can build up fast once the heavier rain settles in. Thunderstorms were also expected to be embedded in the rain bands as Isaias moved along to ENC.
Showers were expected to depart early Monday morning, with partly cloudy skies following. Highs were expected to stay in the 80s for the rest of the week, while overnight lows were expected to be around the 60s.
Early Monday morning
The practical takeaway for Myrtle Beach weather is simple: the calm part of the day did not mean the risk had passed. The wettest period was still ahead, and the worst flooding concern was tied to overnight rain and Sunday rather than the daylight hours when conditions first looked manageable.
