New York Governor Kathy Hochul declared a State of Emergency for parts of Western New York, the Finger Lakes, Central New York, and the North Country regions, as heavy lake-effect snow is expected to bring up to 90 cm (3 feet) of accumulation in the third lake-effect snowstorm of the season.
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.
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.
Temperatures across the Northeast are expected to reach 4 – 10 °C (40 – 50 °F), melting significant snow accumulations from last week’s lake-effect snowstorm. Rainfall totals are forecasted to reach 76 – 127 mm (3 – 5 inches) in some areas, including the I-95 corridor.
Red wind warnings have been issued by the UK Met Office and Met Éireann as Storm Darragh approaches Ireland and the UK on December 6, 2024. Strong winds, heavy rainfall, and hazardous conditions produced by Darragh are predicted to last until December 8.
At least 11 people have been killed, 80 were injured and nearly 50 000 were affected as severe storms swept over Malawi over the past couple of weeks, the country’s Department of Disaster Management Affairs (DoDMA) reports.
A powerful weather system, Storm Darragh, was officially named by the UK Met Office in collaboration with Met Éireann, and the Netherlands’ KNMI on Thursday, December 5, 2024. The storm is set to impact Ireland and the UK from December 6.
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.
A powerful Arctic cold front is set to bring hazardous travel conditions across the Great Lakes and northeastern United States, with heavy snow squalls, strong winds, and whiteout conditions expected from Wednesday through Thursday, December 4 through 5, 2024.
An atmospheric river is forecast to bring significant precipitation to Washington and Oregon between Friday and Saturday, December 6 and 7, 2024, with the Olympic Peninsula and North Cascades expecting up to 127 mm (5 inches) of rainfall and AR2 conditions likely in southern Washington and northern Oregon. While confidence is high regarding the occurrence of the event, uncertainties remain in its duration, intensity, and precise timing due to variability among GEFS ensemble model predictions.
