Van Leer - Doogs Short Range

Short Range Analysis - 17Z 23 March 2011

Shown below is a chart of vorticity advection at the 4 different mandatory levels.  Differential vorticity advection in Iowa shows forcing for rising motion as it is increasing with height.  This is consistent with the forecasted severe weather for later this afternoon.  The second image was used to calculate the vorticity advection by hand.  The calculated value was around 2e-9 s-2 in central Iowa. 


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