Evacuation warnings were issued for Los Angeles County, California for multiple burn scars across the region as an atmospheric river brings in the threat of flash floods and debris flows through New Year’s Day.
A surge of subtropical moisture is forecast to bring moderate to heavy rain to southern and central California on Wednesday, December 31, 2025, with rain spreading north on Thursday, January 1, 2026. A stronger system with a re-intensified atmospheric river is expected to make landfall early Friday, January 2, bringing heavier precipitation along the northern and central California coast.
The Iowa State Patrol responded to 31 crashes during extreme winter weather on December 28, 2025, as snow, high winds, and whiteout conditions spread across the state. One person was killed, and several others were injured while visibility dropped to near zero on major highways, including Interstate 35.
Blizzard warnings have been issued across the Upper Midwest from Sunday into Monday, December 28–29, 2025, as a powerful winter storm moves toward the Great Lakes, bringing blizzard conditions to large parts of Minnesota, Iowa, Wisconsin, and Michigan.
Winter Storm Ezra is forecast to bring severe winter weather across large parts of the United States from Sunday through Tuesday, December 28–30, 2025, as it moves from the Great Lakes into southern Canada. Heavy snow, blizzard conditions, and hazardous icing are forecast across the Upper Midwest, Great Lakes, and interior Northeast. Snowfall totals of over 30 cm (1 foot) are expected in parts of Michigan’s Upper Peninsula, while ice accumulations of up to 13 mm (0.5 inches) are forecast across interior New England through Tuesday.
A high-pressure natural gas transmission pipeline ruptured near Ridge Route Road and Pine Crest Place in Castaic, Los Angeles County, at about 16:20 LT on December 27, 2025 (00:20 UTC on December 28), prompting a shelter-in-place advisory and a full closure of Interstate 5 until about 21:00 LT. SoCalGas confirmed its crews isolated the damaged section, stopped the leak, and reported no ignition or explosion.
A powerful winter storm swept through the U.S. Northeast on December 26–27, 2025, triggering states of emergency in New Jersey and New York, dropping nearly 30 cm (12 inches) of snow and leaving over 120 000 customers without power.
Winter Storm Warnings are in effect for large parts of the northeastern U.S., including New York, New Jersey, Connecticut, and Pennsylvania, from December 26 until midday December 27, 2025. Snow totals of 10–25 cm (4–10 inches) are forecast throughout warning areas, with the heaviest snowfall affecting the Friday evening commute as travel conditions deteriorate rapidly.
Multiple Ice Storm Warnings are in effect across western and central Pennsylvania from Friday, December 26, 2025, until early Saturday, December 27, 2025. Up to 8 mm (0.3 inches) of ice accumulation are forecast to create treacherous travel conditions, power outages, and tree damage.
A major atmospheric river swept across Southern California from late December 24, 2025, into Christmas Day, December 25, triggering widespread flash floods, evacuations, debris flows, and power outages. Multiple counties including Los Angeles and Ventura were put under a State of Emergency. Rainfall totals reached 75–150 mm (3–6 inches) in coastal and valley areas, with up to 250 mm (10 inches) in higher terrain of Los Angeles and Ventura counties, prompting officials to urge residents to avoid travel.
