• Family of atmospheric rivers to bring heavy rain, flood, and snow to the U.S. West Coast

    ByRishav Kothari

    A series of atmospheric rivers (ARs) is forecast to bring heavy precipitation, flooding risks, and winter storm impacts to the U.S. West Coast this week, with the first AR making landfall on Tuesday, December 17, 2024.  The fourth and fifth ARs are forecast to make landfall on December 21 and 22. Up to 500 mm (20 inches) of rain expected in some areas and significant streamflow rises in western Washington and Oregon.

  • Strong East Coast atmospheric river forecast to bring heavy rain and snowmelt to Northeast

    ByRishav Kothari

    A strong atmospheric river (AR) is set to impact the Southeastern and Northeastern U.S. this week, bringing anomalously high moisture levels and the potential for heavy rainfall and rapid snowmelt. Forecasts indicate the system will strengthen between December 10 and 11, driven by a plume of tropical moisture from the Gulf of Mexico and a cold front.

  • Multiple atmospheric rivers set to impact U.S. West Coast this week

    ByRishav Kothari

    A series of atmospheric rivers (ARs) and mid-level shortwave troughs are forecast to deliver significant precipitation to the United States West Coast starting mid-week, potentially extending into next week. Forecasts indicate that California, Oregon, and Washington will experience varying levels of rainfall intensity, with Northern California likely at the epicenter of the heaviest activity. The first AR in the series is expected to reach California on Wednesday, December 11, 2024.

  • Lake-effect snow causes multi vehicle crash on I-90, closes interstate, Pennsylvania

    ByRishav Kothari

    A winter storm gripping the northeastern United States and Midwest caused chaos along the I-90 corridor in Pennsylvania, where lake-effect snow led to a multi-vehicle crash involving several semi-trucks on December 3, 2024. Conditions along the I-90 will be nearly impossible to travel today and meteorologists are urging to limit or cancel travel as blowing snow in Western Pennsylvania could reduce visibility to zero.