The Supercell Foundation Not all thunderstorms can produce tornadoes - only about 30% of supercell thunderstorms actually spawn these rotating columns of air. Supercells are severe thunderstorms with ...

Often spotted by onlookers in Hawai‘i Volcanoes National Park, or even by YouTube livestream viewers, the long, ashy gray or ...

September 2025 All thunderstorms are dangerous because they produce lightning. But only some are classified as ...

While most associate tornadoes or dust devils with spring, warmth and humidity, tornadoes can also occur during winter, even with snow and temperatures near freezing. These snow tornadoes are referred ...

Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory ...

The National Weather Service has canceled a tornado warning for Santa Cruz County. The warning was issued at 12:19 p.m.

AMERICA’S ‘tornado queen’ has tackled some of the world’s deadliest storms head-on, come inches from decapitation and still can’t stop going back for more. Melanie ...

Heavy rain from a persistent atmospheric river pattern continues to impact California this week. Here's what's causing it.