Summary (tl;dr)

Hawaii's highest peaks, Mauna Kea and Mauna Loa, recently received significant snowfall due to a "Kona low" storm system, prompting winter storm warnings and advisories.

Essential Background

While Hawaii is famous for its tropical beaches, its highest volcanic summits, Mauna Kea (13,803 feet) and Mauna Loa (13,677 feet), are high enough to regularly receive snow during the cooler winter months. This phenomenon is due to the significant drop in temperature with increasing elevation, similar to mountain ranges in other parts of the world. Snowfall on these peaks is a recurring winter event, often associated with specific weather patterns like "Kona lows".

The Full Story

In early January 2026, a "Kona low" storm system brought heavy snow, ice, and fog to the summits of Mauna Kea and Mauna Loa on Hawaii's Big Island. The National Weather Service initially issued a winter storm warning on Sunday, January 4, for elevations above 11,000 feet, later downgrading it to a winter weather advisory by Tuesday, January 6. Unofficial estimates suggested 2 to 3 feet of snow accumulated on the peaks, accompanied by strong winds with gusts up to 75 mph. These wintry conditions made travel to the summits, including access to astronomical observatories, hazardous or impossible, leading to road closures.

Why It Matters

The trending keywords highlight the unique and often surprising climatic diversity within Hawaii, contrasting its tropical image with the alpine conditions found at high elevations. These snow events are crucial for the local ecosystem and attract interest from residents and visitors, though they can disrupt scientific operations at the summit observatories on Mauna Kea. The "Kona low" system responsible for the snow also brought widespread heavy rainfall and gusty winds to lower elevations, posing risks of flash flooding across the islands.

Geographic Location

• Mauna Kea summit, Hawaii Island, Hawaii County, Hawaii, United States (significant snowfall and winter storm warnings)
• Mauna Loa summit, Hawaii Island, Hawaii County, Hawaii, United States (significant snowfall and winter storm warnings)