Astronomical influences and onshore winds will send water levels in Charleston Harbor well into flood stage at times of high tide this weekend. Moderate to major coastal flooding (8.0′ MLLW) will be possible with each morning high tide through at least Monday, while minor flooding is expected with each evening high tide. Road closures will be possible at times of high tide, with some routes becoming temporarily cut off due to salt water inundation.

This weekend’s high tides:

• Saturday morning: 8:54 AM (approaching 8′, moderate to major flood stage)
• Saturday evening: 9:10 PM (7.2-7.4′, minor flood stage)
• Sunday morning: 9:47 AM (7.9-8.1′, moderate to major flood stage)
• Sunday night: 10:01 PM (7-7.2′, minor flood stage)

The good news is that there is no rain in the forecast this weekend, which aside from the sunny-day flooding will turn out to be quite lovely. Highs may not get to 70° on Saturday despite lots of sun, with a little warmup under partly cloudy skies in store for Sunday.