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The National Tsunami Warning Center (NTWC) of the National Weather Service (NWS),
an organizational element of NOAA, operates and maintains a network of approximately
seven coastal tide gauge stations as part of the NOAA Tsunami Program. The data collected
are used to meet tsunami warning responsibilities. Included in this water level collection
are preliminary 15-second water levels from six stations in Alaska (9450552: Craig,
9457526: Old Harbor, 9458912: Chignik, 9460261: Shemya, 9460901: Amchitka, 9462693:
Akutan) and one in California (9411166: Ventura). |