Water Level Thresholds Established for Charleston, SC (feet above MLLW)Īction Stage:The stage or level where the NWS or a partner/user needs to take action in preparation for possible significant hydrologic activity ( NOAA NWS). For information on the frequency of tidal flooding, see NOAA’s latest State of U.S. Thresholds established for the Charleston area and terminology descriptions are provided below. NOAA has also established a threshold for high tide flooding (HTF) in Charleston (7.6 ft. NOAA’s National Weather Service (NWS) Forecast Office in Charleston has established thresholds for minor (7.0 ft. This is particularly true when a King Tide coincides with significant precipitation because water drainage and runoff is impeded.ĭHEC issues King Tide notifications to M圜oast members when water levels are predicted to reach 6.6 feet above mean lower low water (MLLW) or higher at the Charleston Harbor Tide Station. King Tides may result in coastal erosion, flooding of low-lying areas, and road closures which may disrupt normal daily routines. The effects of individual King Tides may vary considerably. Water levels may, however, exceed predicted heights due to precipitation, onshore winds, and other short-term meteorological events. ![]() The National Oceanic and Atmospheric Administration (NOAA), develops annual astronomical tide predictions (which take into account the gravitational pull of the moon and sun on Earth’s oceans) at over 200 locations in South Carolina. ![]() Higher than normal tides typically occur during a new or full moon and when the Moon is at perigee, or during specific seasons around the country. ![]() The term King Tide is a non-scientific term often used to describe exceptionally high tides.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |