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Forecasting and Simulating Severe Weather
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Online 4.1: Uncertainties in Numerical Prediction Models
Precipitation Forecasts -
Each image in the animation is a forecast for the total precipitation (in centimeters) on 2/04/2007. Note the sometimes significant differences in the day-to-day forecast, due in part to model uncertainties. Particular features are apparent throughout the animation including the linear precipitation (associated with a front) extending from the Gulf of Mexico across Florida into the Atlantic Ocean, as well as the large region of precipitation over eastern Canada and the North Atlantic Ocean.
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