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On the Radar with Jess

Dec 26: California Rain, Northeast Snow and Year End Arctic Blast

Jessica Arnoldy
Jessica Arnoldy

As we head to the end of the year, we have several weather stories to monitor. First up is the West, where much of the region and especially California had to deal with extremely heavy rainfall the past 5 days. Totals have been impressive over much of the state:

Weather map showing total precipitation in inches across California and surrounding areas over the past 5 days, with varying colors representing different rainfall amounts.

Our stations in Ventura County experienced the heavy rain on Christmas Eve with every station receiving over 3″ of rain. The big winner was Ranch Campana High school that received 3.79″ from this storm.

Weather station display for Rancho Campana High School showing current temperature, rainfall statistics, and weather conditions.

More rain is expected through Saturday but not nearly as heavy as what they saw earlier this week:

Weather map showing total precipitation in inches across California, illustrating heavy rainfall patterns with color-coded measurements.

The best news from this system is the Sierra snow that has already fallen and the snow that will fall through the weekend. Look at the difference between December 20th and Dec 26th:

Map showing snow depth in California as of December 20, 2025, with color-coded elevation and measurement indicators.
Map showing snow depth across California on December 26, 2025, with color-coded elevation indicators.

 

Northeast Snow and Freezing Rain

Back across the Eastern US, we turn our attention to a quick moving storm that will bring freezing rain and moderate snow to Pennsylvania and New York. First up the snow will fall in a relatively narrow band across the region but totals will be impressive with 8-12″ possible from Syracuse to Albany, NY and 3-5″ possible for New York City:

Weather map showing total snow accumulation across the Eastern U.S. for December 27, 2025, with varying shades indicating snow depth.

South of there across Pennsylvania the story will be freezing rain. High pressure to the north of the storm system will funnel cold air south while warm air is advected north over the cold air. The result is a significant ice storm for the state and even for Western New York:

Map showing accumulated freezing rain (inches) across the Eastern US for December 26, 2025, with varying shades of pink indicating different amounts.

The storm has already started across the region and will quickly spread wintry precip throughout the day on Friday and end early Saturday. Below is a general timing animation that starts with 1 pm Friday and goes through Saturday 11 am:

Weather radar map showing precipitation types across the eastern and northeastern United States, including areas of snow, freezing rain, and rain, on December 26, 2025.

This isn’t the only system we have to watch before the New Year. A potent cold front will sweep across the country starting Sunday, bringing snow across the Great Lakes, the potential for more freezing rain across the Northeast and some rain across the Southern part of the storm:

Weather forecast map showing precipitation types and pressure systems across the United States for December 26, 2025.

The Great Lakes will get the most snow but it will generally be in th 3-5″ range outside of the Upper Peninsula of Michigan:

A weather map showing projected snowfall totals across the Great Lakes region and northeastern United States, with varying amounts indicated in shades of blue and pink.

Arctic Blast for the end of 2025


As far as temperatures go, many locations had either their warmest Christmas Day on record or a top 5 warmest. Locations setting records included Denver, Charlotte and Greensboro, NC and even Lubbock, TX:

Map displaying observed maximum temperatures across the United States for December 25, 2025, with rankings indicated by color codes.

The cold front mentioned above is going to put an end to the extreme warmth we’ve seen over the last several days, sweeping well below average temperatures all the way to Florida:

Temperature anomaly map showing variations across the United States for December 26, 2025, with warmer areas highlighted in red and cooler areas in blue.

Lows in the 20s will make it all the way to the Florida panhandle with 30s well into the Peninsula on New Year’s Eve morning:

Map showing minimum temperatures across the Southeastern U.S. for December 31, 2025, highlighting cold temperatures in Florida and surrounding areas.

This cold looks to stick around for the first part of the year as indicated by the 5 day temperature anomaly below for Dec 29 – Jan 3:

Weather map showing temperature anomalies across the United States from December 26, 2025, to January 4, 2026, with areas of both warm and cold temperatures indicated.

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