Jet Streaks


Go to the Side Legend in the Display Window.  Uncheck the box next to the 65 m/s wind speed and the Wind Barbs, check the box next to Upward Motion.  Then move ahead to 18z (1 PM EST) on January 30th by hitting the next image button of the toolbar twice (next to the play button in the top right corner of the display window).  The image should have an isosurface of 75 m/s winds (magenta) and upward motion (yellow) and should appear like Figure 4.  Pay close attention to the areas of upward motion circled in blue because these areas support the development of storm systems.  These regions of upward motion are due to an imbalance between the pressure gradient acceleration and coriolis acceleration at the entrance and exit region of the jet streak .


jet4
Figure 4


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