Please noteDates, details, and advisories may have changed since they were added to this calendar. Always check the event link and the organizer's own information for the most current details. Tide heights are NOAA astronomical predictions only and do not include El Niño sea level rise, storm surge, wind, or swell, which can add a foot or more; check the live North Spit gauge before a king tide. Weather alerts are pulled automatically from the National Weather Service Eureka office and are not a substitute for official emergency notifications. Sign up for Humboldt Alert at humboldtgov.org/alerts.