First published Oct 26, 2026, 7:47:15 AM UTC · Last updated Oct 26, 2026, 7:47:15 AM UTC

Coastal and marine hazards

Coastal Flood Warning for Coastal Colleton and Charleston Counties, South Carolina

Reported by U.S. National Weather Service Alerts NWS

The warning covers Coastal Colleton and Charleston Counties through 11 a.m. EDT, with 1–2 feet of inundation expected along shorelines and tidal waterways. The alert says numerous roads may become impassable and properties may flood.

At a glance

Affected location: Coastal Colleton and Charleston Counties, South Carolina
The warning covers Coastal Colleton and Charleston Counties through 11 a.m.

Illustrative image: Locator map showing Poston, South Carolina in Florence County and its geographic relationship to the Great Pee Dee River. The map is intended as an orientation/locator graphic and not as a legal or cadastral boundary map. — Postonpreserve/Wikimedia Commons, CC BY-SA 4.0

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Why it matters

The alert advises protecting flood-prone property and avoiding barricaded or water-covered roads.

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 7/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 3/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 7/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

U.S. National Weather Service Alerts NWS Coastal Flood Warning issued October 26 at 2:35AM EDT until October 26 at 11:00AM EDT by NWS Charleston SC

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