• Sierra snowpack jumps from 19 to 98 percent in just 7 days, U.S.

    Snowpack over the Sierra has increased dramatically in just 7 days after a series of storms affected the region last week. The sudden change gives California its wettest start to the Water Year (October 1 – September 30) in more than 40 years. A new series of…

  • Anomalous and historic December derecho hits U.S.

    An anomalous and historic December derecho, a windstorm associated with an unusually strong and fast-moving line of thunderstorms, swept from the U.S. Southwest to the Upper Midwest on December 15, 2021, traveling roughly 1 060 km (660 miles) in just over 10 hours….

  • Massive dust storm sweeps through Colorado, Kansas and Nebraska, U.S.

    Strong winds caused by a powerful storm moving through the Plains, produced a massive dust storm in eastern Colorado, Kansas and Nebraska on December 15, 2021. Strong wind gusts in excess of 160 km/h (100 mph) closed roads and knocked out power to more than 200 000…

  • Widespread hazardous weather to impact the Central U.S.

    A rapidly strengthening storm system will shift from the central Rockies to the upper Great Lakes today with widespread high winds, exceeding 110 km/h (70 mph) in some locations. Wind damage and power outages are likely with difficult to dangerous travel conditions….