Area Forecast Discussion

WHAT HAS CHANGED

Issued Small Craft Advisory for Charleston Harbor and Charleston County nearshore waters.

KEY MESSAGES

- 1) Minor coastal flooding possible along the South Carolina coast this evening.

DISCUSSION

KEY MESSAGE 1: Minor coastal flooding possible along the South Carolina coast this evening.

Tidal anomaly has decreased by a few tenths of a foot since last evening given the developing offshore winds. However, winds will clock around to NNE this evening which is a much more favorable direction for positive departure. The big question is how much anomaly builds before the 10:30 pm high tide. We maintained the previous forecast of +0.8 ft anomaly and 7.3 ft MLLW peak tide level (Minor). A Coastal Flood Advisory will likely be needed.

AVIATION /18Z SUNDAY THROUGH FRIDAY/

VFR. Gusty NNW winds will diminish around sunset.

Extended Aviation Outlook: Dry high pressure keeps VFR conditions in place through much of the coming week.

MARINE

A briefly period of enhanced NNE gradient expected through Monday morning as high pressure builds behind a cold front. 25 kt gusts this afternoon in Charleston Harbor and this afternoon/eve in the Charleston County nearshore waters necessitated a Small Craft Advisory issuance. Also maintained the Small Craft Advisory for the offshore GA waters until Monday afternoon to highlight a more prolonged period of 25 kt gusts and 4-6 ft seas.

Rip Currents: A Moderate Risk of rip currents remains in place for all beaches through Monday due to lingering swells, lingering astronomical factors, and strong longshore current.

CHS WATCHES / WARNINGS / ADVISORIES

GA...None. SC...None. MARINE...Small Craft Advisory until 7 PM EDT this evening for AMZ340. Small Craft Advisory until midnight EDT tonight for AMZ360. Small Craft Advisory from 7 PM this evening to 5 PM EDT Monday for AMZ384.