Winter Weather Forecast: What to Expect this Season

November 21, 2024
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Several people have asked about the upcoming winter season and whether they should get ready for snow or prepare for another mild winter.

The last three winters were very mild with temperatures well above normal and almost no significant snow. Our last big winter storm was Jan 2022 when around 12” of heavy wet snow blanketed the region. This was a terrible week for many as trees and power lines became snow-laden and crashed to the ground. Some were without power for about a week. The previous big winter storm was the Blizzard of Jan 2016. We tend to get big winter storms about once every 4-5 years, so we are approaching the “we are overdue” stage.

Many were calling for lots of snow last year, due to El Niño. During El Niño winters, we usually get plenty of coastal storms, which we did, but we never had enough cold air to support much snow. We got plenty of heavy rainfall that ended our drought.

This year La Niña will be the main large-scale weather feature that will guide the season. La Niña means “Little Girl” and is defined as a cooling of the Equatorial Pacific waters. This causes a northward shift in the Polar Jet Stream across the Pacific Ocean, then it dives southeast into the northeastern United States. This generally causes warm and somewhat wetter conditions over the interior Northeastern United States. Virginia should be warmer than normal, but it looks like a wet winter is a 50/50-coin toss. On average, La Niña years are less snowy than other years for our region.

Predicting winter snowfall for a particular area is impossible. This is especially true for the Mid-Atlantic region since most of our winter storms are dependent on tracks of Nor’easter storms that ride up the coast. Trying to predict the smaller scale features that support these storms is just not possible this far in advance. It’s best to wait until we see something in the models about a week out before mentioning snow.

One concern I have with La Niña years is that we tend to see more frequent periods of very shallow intrusions of cold Arctic air. The shallow nature of these events usually produces more freezing rain/sleet events versus snow.

Seasonal Snowfall averages for Louisa County Airport:
Nov 0.5”, Dec 2.2”, Jan 3.5”, Feb 4.2”, Mar 1.0”


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Several people have asked about the upcoming winter season and whether they should get ready for snow or prepare for another mild winter.

The last three winters were very mild with temperatures well above normal and almost no significant snow. Our last big winter storm was Jan 2022 when around 12” of heavy wet snow blanketed the region. This was a terrible week for many as trees and power lines became snow-laden and crashed to the ground. Some were without power for about a week. The previous big winter storm was the Blizzard of Jan 2016. We tend to get big winter storms about once every 4-5 years, so we are approaching the “we are overdue” stage.

Many were calling for lots of snow last year, due to El Niño. During El Niño winters, we usually get plenty of coastal storms, which we did, but we never had enough cold air to support much snow. We got plenty of heavy rainfall that ended our drought.

This year La Niña will be the main large-scale weather feature that will guide the season. La Niña means “Little Girl” and is defined as a cooling of the Equatorial Pacific waters. This causes a northward shift in the Polar Jet Stream across the Pacific Ocean, then it dives southeast into the northeastern United States. This generally causes warm and somewhat wetter conditions over the interior Northeastern United States. Virginia should be warmer than normal, but it looks like a wet winter is a 50/50-coin toss. On average, La Niña years are less snowy than other years for our region.

Predicting winter snowfall for a particular area is impossible. This is especially true for the Mid-Atlantic region since most of our winter storms are dependent on tracks of Nor’easter storms that ride up the coast. Trying to predict the smaller scale features that support these storms is just not possible this far in advance. It’s best to wait until we see something in the models about a week out before mentioning snow.

One concern I have with La Niña years is that we tend to see more frequent periods of very shallow intrusions of cold Arctic air. The shallow nature of these events usually produces more freezing rain/sleet events versus snow.

Seasonal Snowfall averages for Louisa County Airport:
Nov 0.5”, Dec 2.2”, Jan 3.5”, Feb 4.2”, Mar 1.0”


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