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An example of 500 mbar geopotential height prediction from a numerical weather prediction model. In the past, human forecasters were responsible for generating the weather forecast based upon available observations. [72] Today, human input is generally confined to choosing a model based on various parameters, such as model biases and ...
The 2024–25 North American winter is the current winter season that is ongoing across the continent of North America.The most notable events of the season so far have included a powerful bomb cyclone that impacted the West Coast of the United States in mid-to-late November, as well as a severe lake-effect snowstorm in the Great Lakes later that month.
The Weather Prediction Center described it as an "impactful, rare winter storm". [3] The remnants of the blizzard subsequently crossed the Atlantic Ocean and developed into Storm Éowyn, which brought historic impacts to Ireland, Isle of Man and the United Kingdom and mildly affected western Norway. [4]
The Weather Prediction Center (WPC), located in College Park, Maryland, is one of nine service centers under the umbrella of the National Centers for Environmental Prediction (NCEP), a part of the National Weather Service (NWS), which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the U.S. Government.
On October 20, 2022, the National Oceanic and Atmospheric Administration's Climate Prediction Center released its outlook for the upcoming winter in the United States. . Temperatures were favored to be below normal in the Pacific Northwest and Northern Plains, and above normal in the Southwestern United States, Southeastern United States and Northeastern United S
The January 9–11, 2025 United States winter storm was a significant and widespread winter storm that brought major impacts to the southern half of the United States. The system developed as a shortwave trough moved east across the southwestern United States .
Weather reconnaissance aircraft, such as this WP-3D Orion, provide data that is then used in numerical weather forecasts.. The atmosphere is a fluid.As such, the idea of numerical weather prediction is to sample the state of the fluid at a given time and use the equations of fluid dynamics and thermodynamics to estimate the state of the fluid at some time in the future.
The system was unofficially nicknamed Winter Storm Blair by the Weather Channel. [5] [6] Winter storm advisories issued by the National Weather Service (NWS) throughout January 3 extended approximately 1,500 mi (2,400 km) from western Kansas to West Virginia, marking one of the most extensive winter weather warning areas in the 2024–25 North ...