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  2. Rapid Refresh (weather prediction) - Wikipedia

    en.wikipedia.org/wiki/Rapid_Refresh_(weather...

    The model is designed to provide short-range hourly weather forecasts for North America. The Rapid Refresh was officially made operational on 1 May 2012, replacing the Rapid Update Cycle (RUC). The model also serves as the boundary conditions for the higher-resolution High Resolution Rapid Refresh ( HRRR ) model, that uses a 3 km (1.9 mi) grid ...

  3. Weather Research and Forecasting Model - Wikipedia

    en.wikipedia.org/wiki/Weather_Research_and...

    The Weather Research and Forecasting (WRF) Model [1] (/ ˈ w ɔːr f /) is a numerical weather prediction (NWP) system designed to serve both atmospheric research and operational forecasting needs. NWP refers to the simulation and prediction of the atmosphere with a computer model, and WRF is a set of software for this.

  4. Weather forecasting - Wikipedia

    en.wikipedia.org/wiki/Weather_forecasting

    MOS or model output statistics is a technique used to interpret numerical model output and produce site-specific guidance. This guidance is presented in coded numerical form, and can be obtained for nearly all National Weather Service reporting stations in the United States.

  5. Polar vortex headed for US will bring ‘exceptionally cold ...

    www.aol.com/news/polar-vortex-headed-us-bring...

    "Based on the latest long-range data, this January has the potential to be the coldest since 2014." ... Across the board the weather models are screaming at us that this really cold air is on the ...

  6. Numerical weather prediction - Wikipedia

    en.wikipedia.org/wiki/Numerical_weather_prediction

    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.

  7. Global Environmental Multiscale Model - Wikipedia

    en.wikipedia.org/wiki/Global_Environmental_Multi...

    The Global Environmental Multiscale Model (GEM), often known as the CMC model in North America, is an integrated forecasting and data assimilation system developed in the Recherche en Prévision Numérique (RPN), Meteorological Research Branch (MRB), and the Canadian Meteorological Centre (CMC).

  8. Weather Prediction Center - Wikipedia

    en.wikipedia.org/wiki/Weather_Prediction_Center

    With access to WSR-88D/Doppler weather radar data, satellite estimates, and NCEP model forecast data as well as current weather observations and WPC analyses, the forecaster has the latest data for use in preparation of short-range precipitation forecasts. Meteorological reasoning discussions are regularly written and issued with the forecast ...

  9. IBM Deep Thunder - Wikipedia

    en.wikipedia.org/wiki/IBM_Deep_Thunder

    Deep Thunder uses a 3D telescoping grid where data from one model feeds into another and is verified with historical data. For example, they start with a global model from NOAA, and as they zoom in the resolution decreases exponentially, down to models with resolutions of 1 kilometer, and sometimes as small as 1 meter. Using this method, IBM ...