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Predicting Supercell Motion in Operations

Matthew Bunkers - NWS, Rapid City, SD


Objective: To increase operational awareness of forecasting supercell motion - leads to better nowcasts & pathcasts of severe convective weather, as well as better derived parameters.


  1. Discuss primary mechanisms controlling supercell (and thunderstorm) motion
  2. Explain the B2K method for predicting supercell motion which includes:
    • strengths and limitations of B2K method
    • vertical wind shear perspective
  3. Provide examples of predicting supercell motion in operations
  4. Summarize and provide recommendations

Training Session Options

NOAA/NWS students - to begin the training, use the web-based video, YouTube video, or audio playback options below (if present for this session). Certificates of completion for NOAA/NWS employees can be obtained by accessing the session via the Commerce Learn Center

  1. Web-based video that can be taken at anytime (streamed, not recommended for low-bandwidth users). Be sure to have your speakers on and the volume loud enough to hear the presentation. Also be sure that you are using a flash enabled browser.
  2. Audio playback (recommended for low-bandwidth users) - This is an audio playback version in the form of a downloadable VISITview and can be taken at anytime.

    Create a directory to download the audio playback file (74 MB) from the following link:

    After extracting the files into that directory click on either the visitplay.bat or visitauto.bat file to start the lesson. If both files are present, use visitauto.bat

References/Additional Links

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