410 AM PST Fri Feb 28 2025 Northern Humboldt Coast- 410 AM PST Fri Feb 28 2025 .NOW... Patchy dense fog has developed around Humboldt Bay early this morning, including portions of highway 101 between Eureka and Arcata. Visibilities has been reduced to less than one quarter mile in some areas. Motorists should prepare for rapid changes in visibility. Use only low-beam headlights in fog. Allow extra time to reach your destination. These conditions may linger into the late morning hours.