The winter of 2024-2025 is shaping up to be a snowy one for many parts of the country. According to the National Oceanic and Atmospheric Administration (NOAA), the chances of above-average snowfall are high for the northern and eastern United States. This is due to a combination of factors, including a strong La Niña pattern in the Pacific Ocean and a cold and wet weather pattern in the Atlantic.
El Niño-Southern Oscillation (ENSO) is a climate pattern that affects the ocean and atmosphere on a global scale. During a La Niña event, cooler-than-average waters form in the central and eastern Pacific Ocean. This can lead to changes in the jet stream, which is a narrow band of high-altitude winds that flows from west to east across the globe. When the jet stream is shifted northward during a La Niña event, it can lead to more frequent and intense storms over the northern United States. This is because the jet stream acts as a pathway for storm systems, and a northward shift in the jet stream allows these storms to move farther north into the United States.
In addition to the La Niña pattern, a cold and wet weather pattern in the Atlantic is also contributing to the increased likelihood of snowfall this winter. The North Atlantic Oscillation (NAO) is a climate pattern that affects the ocean and atmosphere in the North Atlantic region. When the NAO is negative, as it has been for much of the past year, it can lead to colder and wetter-than-average conditions in the northeastern United States. This is because the negative phase of the NAO is associated with a strengthening of the Icelandic Low, a semi-permanent area of low pressure in the North Atlantic. When the Icelandic Low is strong, it can draw in more cold and moist air from the Arctic, leading to increased snowfall over the northeastern United States.
Winter 2024-2025 Snowfall Outlook
Winter 2024-2025 Snowfall Forecast
The upcoming winter season, spanning from December 2024 to February 2025, is expected to bring a range of snowfall conditions across the United States. According to the National Weather Service’s (NWS) seasonal forecast, certain regions are predicted to experience above-average snowfall, while others may witness below-average accumulations. These predictions are based on a combination of long-term climate models, historical data, and current atmospheric conditions.
The NWS has categorized the winter snowfall outlook into three categories: above average, below average, and near average. Regions predicted to receive above-average snowfall include the northern and central Rockies, the Great Lakes, and the Northeast. Areas likely to experience below-average snowfall encompass the Pacific Northwest, the southern Rockies, and the southern Plains. The remaining regions are anticipated to witness near-average snowfall amounts.
The following table summarizes the snowfall outlook for different regions of the United States:
| Region | Snowfall Outlook |
|---|---|
| Northern and Central Rockies | Above Average |
| Great Lakes | Above Average |
| Northeast | Above Average |
| Pacific Northwest | Below Average |
| Southern Rockies | Below Average |
| Southern Plains | Below Average |
| Remaining Regions | Near Average |
National Overview of Expected Snowfall
The 2024-2025 winter is expected to bring a wide range of snowfall patterns across the United States. While some areas will see above-average snowfall, others may experience below-average amounts. The National Weather Service has released its initial snowfall predictions for the upcoming winter, providing a general outlook for the season.
Regional Variations in Snowfall
Snowfall predictions for the 2024-2025 winter vary significantly from region to region. Here is a breakdown of the expected snowfall patterns for different areas of the country:
| Region | Snowfall Prediction |
|---|---|
| Northeast | Above-average snowfall, especially along the coast |
| Midwest | Near-average snowfall, with slightly higher amounts in the northern part of the region |
| South | Below-average snowfall, with only occasional snowstorms expected |
| West | Highly variable snowfall, with some areas experiencing above-average snowfall and others receiving below-average amounts |
Regional Snowfall Predictions
Northeast
The Northeast is expected to experience a near-normal to slightly below-normal winter in terms of snowfall. The greatest snowfall is predicted for the interior of Maine and New Hampshire, where 40-60 inches of snow is possible. Coastal areas, including Boston and New York City, are expected to see 20-40 inches of snow. Warmer temperatures and less frequent storm systems are contributing to the below-average snowfall forecast.
Midwest
The Midwest is forecast to have a slightly above-normal winter for snowfall. The heaviest snow is predicted for the northern Great Lakes region, where 60-90 inches of snow is possible. Areas farther south, including Chicago and Milwaukee, are expected to see 30-60 inches of snow. A slow-moving jet stream and frequent storm systems will contribute to the above-average snowfall.
West
The West is expected to experience a variable winter for snowfall. The Pacific Northwest is forecast to have a near-normal to slightly below-normal winter, with 40-60 inches of snow possible in the mountains. The Intermountain West is predicted to have a slightly above-normal winter, with 60-90 inches of snow possible in the mountains. California is expected to have a below-normal winter, with less than 30 inches of snow possible in the mountains.
| Region | Snowfall Prediction |
|---|---|
| Northeast | 20-60 inches |
| Midwest | 30-90 inches |
| West | Variable |
Eastern United States Snowfall Outlook
The National Weather Service has released its winter 2024-2025 snowfall outlook for the Eastern United States. The outlook predicts below-average snowfall for most of the region, with the exception of the Northeast. The Northeast is expected to see above-average snowfall, with the heaviest snowfall occurring in Maine, New Hampshire, and Vermont.
Snowfall Totals
The following table shows the predicted snowfall totals for the Eastern United States for the winter of 2024-2025:
| Region | Snowfall (inches) |
|---|---|
| Northeast | 30-40 |
| Mid-Atlantic | 15-25 |
| Southeast | 5-15 |
| Ohio Valley | 10-20 |
| Great Lakes | 20-30 |
The snowfall totals in the table are just predictions, and the actual snowfall may vary. However, the outlook provides a general idea of what to expect for the winter of 2024-2025.
Western United States Snowfall Outlook
The upcoming winter season, from 2024-2025, is predicted to bring a wide range of snowfall conditions across the vast and diverse Western United States. While some regions may experience bountiful snowpack, others may face more moderate or even drier conditions.
Northern Rockies and Cascades
The Northern Rockies, including the states of Washington, northern Idaho, and western Montana, are expected to receive above-average snowfall during the winter of 2024-2025. The Cascades, located in Oregon and Washington, are also expected to see substantial snow accumulations, particularly in the higher elevations.
Central and Southern Rockies
In contrast, the Central and Southern Rockies, encompassing states like Colorado, Wyoming, Utah, and northern New Mexico, are predicted to have a more moderate snowfall season. While some areas may receive average or slightly above-average snowfall, others may experience below-average conditions.
Sierra Nevada and Great Basin
The Sierra Nevada mountains, stretching across eastern California and western Nevada, are expected to receive near-normal snowfall during the winter of 2024-2025. However, localized areas may experience higher or lower snowfall totals based on specific weather patterns.
Southwest
The Southwest, including the states of Arizona and New Mexico, is likely to experience a drier winter than usual. Snowfall totals are expected to be below average, particularly at lower elevations.
Pacific Northwest Coastal Region
The Pacific Northwest coastal region, encompassing the western portions of Washington and Oregon, is predicted to have a wet winter with near-average to slightly below-average snowfall totals. While the region typically receives substantial precipitation, much of it may fall as rain rather than snow due to milder temperatures.
Southern United States Snowfall Outlook
The Southern United States is expected to experience a near-normal winter in 2024-2025, with slightly below-average snowfall in some areas and slightly above-average snowfall in others. Overall, the region is not expected to see any major snowstorms or extreme weather events.
Snowfall Amounts
Below is a table with the predicted snowfall amounts for major cities in the Southern United States:
| City | Predicted Snowfall (inches) |
|---|---|
| Atlanta, GA | 2-4 |
| Birmingham, AL | 1-3 |
| Charlotte, NC | 2-4 |
| Dallas, TX | 1-2 |
| Houston, TX | 0-1 |
| Jacksonville, FL | 0-1 |
| Memphis, TN | 2-4 |
| Miami, FL | 0 |
| Nashville, TN | 3-5 |
| New Orleans, LA | 0 |
| Raleigh, NC | 3-5 |
| Richmond, VA | 3-5 |
| San Antonio, TX | 0-1 |
| Tampa, FL | 0 |
Temperature Outlook
Temperatures in the Southern United States are expected to be near normal for the winter season. However, there may be some periods of cold weather, especially in the northern and western parts of the region. Overall, the winter is expected to be mild and comfortable.
Precipitation Outlook
Precipitation is expected to be near normal for the winter season in the Southern United States. However, there may be some areas that experience slightly above-average precipitation, especially in the eastern and southern parts of the region. Overall, the winter is expected to be wet and rainy.
Northern United States Snowfall Outlook
Winter is expected to bring a mix of above- and below-average snowfall to the northern United States during the 2024-2025 season. Here’s a closer look at the forecast.
Upper Midwest
The Upper Midwest, including Minnesota, Wisconsin, and Michigan, is expected to receive above-average snowfall this winter. The region is typically known for heavy snowfalls, and this year is no exception. The areas around Lake Superior and Lake Michigan are likely to experience some of the heaviest snowfall, with accumulations potentially reaching 90 inches or more in some locations.
Northeast
The Northeast, including New York, Pennsylvania, and New England, is expected to have a near-average snowfall season. However, some areas may experience localized heavy snowfall events, particularly along the coast and in the mountains. The cities of Boston and New York City could see accumulations of 24-30 inches, while Maine and New Hampshire may receive up to 40 inches.
Northern Plains
The Northern Plains, including North Dakota, South Dakota, and Nebraska, is likely to see a mix of above- and below-average snowfall this winter. While some areas may receive heavier snowfall, others may experience a milder winter with less snow than usual.
Pacific Northwest
The Pacific Northwest, including Washington and Oregon, is expected to have a below-average snowfall season during the 2024-2025 winter. The region typically receives less snowfall than other parts of the United States, and this year is likely to be no different. The Cascades and Olympic Mountains may see some snow accumulation, but it’s unlikely to be significant.
Rocky Mountains
The Rocky Mountains, including Colorado, Wyoming, and Montana, are expected to receive above-average snowfall this winter. The region is known for its heavy snowpack, which provides water for the entire western United States. The southern Rockies, particularly Colorado and New Mexico, may see accumulations of 100 inches or more in some areas.
Great Lakes
The Great Lakes region, including Ohio, Indiana, and Illinois, is expected to see a near-average snowfall season this winter. However, lake-effect snow could create localized areas of heavy snowfall, particularly in parts of New York and Ohio.
Snowfall Forecast Table
| City | Snowfall (inches) |
|---|---|
| Duluth, MN | 85-95 |
| Minneapolis, MN | 55-65 |
| Chicago, IL | 35-45 |
| Boston, MA | 24-30 |
| Denver, CO | 60-70 |
| Seattle, WA | 15-25 |
Impact of La Niña on Snowfall Predictions
La Niña, a climate pattern characterized by unusually cold ocean temperatures in the Pacific, is expected to influence snowfall predictions for winter 2024-2025. La Niña typically leads to:
- Warmer and drier conditions in the southern and eastern United States
- Cooler and wetter conditions in the northern and western United States
Impact on Specific Regions
Based on historical data, La Niña has been associated with the following snowfall patterns:
| Region | Predicted Snowfall |
|---|---|
| Northeast | Above normal |
| Great Lakes | Above normal |
| Mid-Atlantic | Normal to slightly above normal |
| Southeast | Below normal |
| Pacific Northwest | Above normal |
| California | Below normal |
Snowfall Predictions Based on Climate Models
Long-range snowfall forecasts for the winter of 2024-2025 are based on climate models that incorporate historical patterns, global atmospheric and oceanic conditions, and other factors to predict future precipitation.
Ensemble Average Forecasts
Ensemble average forecasts combine multiple climate model runs to provide an overall prediction. These forecasts suggest that the upcoming winter will experience near-normal snowfall across most of the United States.
Regional Variations
While the ensemble average forecasts provide a general outlook, snowfall patterns can vary regionally. Some areas may experience above-average snowfall, while others may receive less.
Factors Influencing Snowfall
Factors that influence snowfall predictions include La Niña or El Niño events, jet stream patterns, and local topography. These factors can impact snowfall patterns on a regional or local scale.
Model Limitations
It’s important to note that climate models are not perfect and have limitations. Snowfall predictions can change as the winter approaches, and actual snowfall may differ from forecasts.
Above-Average Snowfall Regions
Based on current model predictions, areas that may experience above-average snowfall include:
| Region | Snowfall Anomaly |
|---|---|
| Upper Great Lakes | +10 to +20 inches |
| Northeast | +5 to +10 inches |
| Northern Rockies | +5 to +10 inches |
Below-Average Snowfall Regions
Areas that may experience below-average snowfall include:
| Region | Snowfall Anomaly |
|---|---|
| Southern Plains | -5 to -10 inches |
| Southwest | -5 to -10 inches |
| Pacific Northwest | -5 to -10 inches |
Long-Term Snowfall Trends and Outlook
Long-term snowfall trends indicate a slight decrease in average annual snowfall in many regions of the world. This is primarily attributed to rising global temperatures, which are causing warmer winters and less precipitation in the form of snow.
Global Warming and Snowfall
As global temperatures rise, the atmosphere can hold more moisture, leading to increased precipitation in the form of rain rather than snow. Additionally, warmer temperatures can cause existing snowpack to melt prematurely, reducing overall snowfall accumulation.
Regional Variations
The impacts of global warming on snowfall are not uniform across all regions. Some areas, particularly at higher elevations and in colder climates, may experience increased snowfall due to changes in storm patterns and atmospheric circulation.
Declining Snowpack in the Western United States
One notable region experiencing significant snowpack decline is the western United States. A study by the University of California, Berkeley, found that the Sierra Nevada mountain range has lost about 30% of its snowpack since the 1950s. This decline is attributed to both rising temperatures and changes in precipitation patterns.
| Region | Trend |
|---|---|
| Western United States | Declining |
| Northeastern United States | Stable |
| Europe | Variable |
| Asia | Mixed |
Projected Snowfall for 2024-2025
While long-term trends provide insights into the general direction of snowfall changes, predicting snowfall for specific years is challenging. Seasonal weather patterns and other factors can influence snowfall variability, making it difficult to make accurate long-range forecasts.
Currently, no reliable predictions are available for the 2024-2025 winter season. However, as the winter approaches, forecasters will begin issuing short-term predictions based on the latest weather data and models.
Winter 2024-2025 Snowfall Predictions
The winter of 2024-2025 is predicted to be colder and snowier than average in many parts of the United States. The National Weather Service (NWS) has issued a winter outlook that predicts above-average snowfall for the northern and central United States, including the Great Lakes region, the Ohio Valley, and the Northeast. The NWS also predicts that the Pacific Northwest will experience above-average snowfall, while the Southwest will experience below-average snowfall.
The NWS’s winter outlook is based on a number of factors, including sea surface temperatures in the Pacific and Atlantic oceans, as well as atmospheric circulation patterns. The NWS predicts that the La Niña pattern, which is characterized by cooler-than-average sea surface temperatures in the eastern Pacific Ocean, will continue through the winter of 2024-2025. La Niña patterns typically lead to colder and snowier winters in the northern and central United States.
The NWS’s winter outlook is just a prediction, and the actual weather conditions can vary significantly from the predictions. However, the NWS’s outlook provides a general idea of what to expect during the winter of 2024-2025.
