24hr 850mb Forecast (GFS)

The 24-hour forecast chart from the GFS (via Univ of Wisconsin) valid Tuesday morning.  Shaded colrs are temperature, arrows are wind vectors,and the solid lines are best thought of as pressure (although they are actual "height" contours).

The 24-hour forecast chart from the GFS (via Univ of Wisconsin) valid Tuesday morning. Shaded colrs are temperature, arrows are wind vectors,and the solid lines are best thought of as pressure (although they are actual “height” contours).