The HNN First Alert Weather Team continues the First Alert Weather Day only for Hawaii Island. The Flash Flood Warning for ...

Using a nearly 200-year record of lava chemistry from Kīlauea and Maunaloa, earth scientists from the University of Hawaiʻi ...

A winter storm will bring severe weather across Hawaii beginning on Thursday, with impacts expected until Saturday morning.

Using a nearly 200-year record of lava chemistry from Kīlauea and Mauna Loa on the Big Island, scientists from University of ...

The change measured by the Mauna Loa Observatory was likely driven by wildfires and continued burning of fossil fuels, ...

Although it usually happens once or twice a year, this will be a very big snow for the tops of the volcanoes in Hawaii. One to two feet of snow will be possible.

A new study reveals that Hawai‘i’s two most active volcanoes, Kīlauea and Maunaloa, share the same source of magma deep within the Earth. For years, scientists believed these volcanoes had completely ...

The Mauna Loa Observatory in Hawaii recorded the largest spike in atmospheric carbon dioxide (CO2) concentrations in 2024.

The Kilauea volcano at Hawaii Volcanoes National Park is erupting again, marking its seventh episode recently. Lava fountains and streams are visible from public overlooks, though they currently pose ...

Using a nearly 200-year record of lava chemistry from Kīlauea and Maunaloa, Earth scientists from the University of Hawai'i ...