Moderate Storm Surge ● Active
Coastal Flood Watch issued October 24 at 5:03PM EDT until October 25 at 11:00AM EDT by NWS Charleston SC, United States of America
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* WHAT...For the Coastal Flood Advisory, up to one foot of
inundation above ground level along shorelines and tidal
waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston).
For the High Surf Advisory, large breaking waves of 4 to 6 feet
in the surf zone. For the High Rip Current Risk, dangerous rip
currents. For the Coastal Flood Watch, one to two feet of
inundation above ground level possible along shorelines and
tidal waterways (7.9 to 8.1 feet Mean Lower Low Water at
Charleston).
* WHERE...Coastal Colleton and Charleston Counties.
* WHEN...For the Coastal Flood Advisory, until 10 PM EDT this
evening. For the High Surf Advisory, until 5 PM EDT Monday.
For the High Rip Current Risk, through Sunday evening. For the
Coastal Flood Watch, from 4 AM EDT Sunday through Sunday
morning.
* IMPACTS...Significant saltwater inundation will render
numerous roads impassable. Properties may also flood.
Dangerous swimming and surfing conditions and localized beach
erosion. Rip currents can sweep even the best swimmers away
from shore into deeper water.
* ADDITIONAL DETAILS...High tide will occur around 7:13 PM today
and around 7:34 AM Sunday at Charleston. Saltwater inundation
will be possible 1 to 2 hours before and after high tide.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Coastal Colleton; Charleston |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-25T01:15:00-04:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 1 hour ago (Oct 24, 2026 21:04 UTC) · we last heard from WMO Alert Hub (national weather services) 29 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Coastal Colleton; Charleston
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Understanding surge zones, evacuation timing, and why storm surge is the deadliest part of a tropical cyclone.
Open Storm Surge Safety Guide →Earlier storm surge events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.