Chart correction NNU-323714 — chart 124
изменена характеристика · Humboldt Bay Entrance Lighted Whistle Buoy HB · RW "HB" Mo (A) WHIS AIS · Red and white stripes; AIS: MMSI 993692035; No topmark will be shown on this aid as required by IALA standards due to weather.
Source: NOAA Nautical Updates — critical (US waters)
Reference information — always verify against official Notices to Mariners before navigation.