March megastorm may bring blizzards, tornadoes, flooding and even fires across much of US

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A Powerful March Storm Sweeps Across the U.S., Bringing Diverse Weather Threats

A sprawling and intense March storm system is poised to impact more than 100 million people across the United States, beginning on Friday. This multi-day weather event is expected to bring a variety of severe conditions, including fires, blizzards, tornadoes, and flooding, as it moves eastward across the Great Plains. While the storm’s strength and far-reaching impacts are notable, scientists emphasize that its timing is not unusual for this time of year. Spring is a period when extreme weather events can occur due to significant temperature differences between the lingering cold of winter and the emerging warmth of spring. According to Benjamin Reppert, a meteorologist at Penn State University, this is a time of year when a storm system can deliver coast-to-coast impacts. The National Weather Service has forecast strong winds stretching from the Canadian border to the Rio Grande on Friday, with gusts reaching up to 80 mph, creating a heightened fire risk in Texas, New Mexico, and Oklahoma. Farther north, parts of the Rockies and Northern Plains could experience blizzard conditions, particularly in the Dakotas and Minnesota.

Severe Thunderstorms and Tornado Risks in the Central U.S.

The central region of the country, spanning from the Gulf Coast to Wisconsin, is under threat from severe thunderstorms that could produce tornadoes and hail. These storms are expected to intensify on Saturday as they move toward Louisiana, Mississippi, Alabama, Tennessee, and eventually Florida. In addition to the risk of severe weather, potential flooding is a concern from the Central Gulf Coast through the upper Ohio Valley. The combination of heavy rainfall and strong winds could lead to flash flooding in localized areas, making it essential for residents in these regions to stay vigilant and monitor weather updates.

East Coast Braces for Strong Winds and Flash Flooding

By Sunday, the turbulent weather is expected to reach the East Coast, bringing strong winds and a risk of flash flooding in localized areas. Heavy rain is forecast to fall along the Interstate 95 corridor, stretching from the Mid-Atlantic region down to Jacksonville, Florida. The storm’s eastward progression could lead to significant disruptions in urban areas, particularly in major cities along the East Coast. Residents are advised to prepare for potential power outages and travel delays as the storm’s impacts unfold.

Scientific Insights: Understanding the Storm’s Strength

The storm’s unusual strength can be attributed to several factors, including record-breaking temperature extremes in parts of the country. Benjamin Reppert noted that temperatures in the upper atmosphere over the central and eastern U.S. are near record levels for this time of year, while a cool air mass behind the storm in the western states is one of the coolest on record for the region and season. This contrasting combination of warm and cold air masses is likely contributing to the storm’s intensity. Additionally, Russ Schumacher, a climatologist at Colorado State University, mentioned that the storm could develop into a “bomb cyclone” by Friday afternoon or evening. A bomb cyclone forms when a storm intensifies rapidly, causing atmospheric pressure to drop significantly within a 24-hour period. This rapid intensification would result in higher winds and more intense rainfall.

The Role of the Jet Stream and Gulf of Mexico

The storm’s trajectory and strength are also being influenced by the jet stream, which is currently positioned in a typical location for this time of year. The jet stream is diving south across the U.S., helping to lift air and moisture into the atmosphere, which contributes to the formation of rain and thunderstorms. Furthermore, the storm is drawing heat and moisture from the Gulf of Mexico, where water temperatures are 2 to 4 degrees Fahrenheit warmer than historic averages. This additional fuel is expected to enhance the storm’s intensity. Ryan Torn, a professor of atmospheric and environmental sciences at the University at Albany, described the situation as a “Goldilocks” scenario, where the mix of atmospheric ingredients is just right to amplify the storm’s strength.

A Call for Vigilance and Preparedness

As this powerful storm system progresses across the United States, it is crucial for residents in affected areas to remain informed and prepared. The diverse array of weather threats, from blizzards and tornadoes to flooding and high winds, underscores the importance of staying tuned to local weather alerts and following safety guidelines. While the storm’s timing aligns with the transitional weather patterns of spring, its potential impact remains significant. Scientists and meteorologists continue to closely monitor the system, providing critical updates that can help protect lives and property. The Associated Press’ climate and environmental coverage, supported by private foundations, plays a vital role in keeping the public informed about such high-stakes weather events.

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