inarg: needboreplot_2015062512_0106_0289_0102_0314_001_003.
 today2: 20150626
 today3: 20150627
 member:            1
 today: 20150625
 whichrun: 12
 timestring: 2015-06-25_15:00:00
 enssizein:            1  001
 x1,y1:          106         289
 x2,y2:          102         314
 /scratch/01242/tg805225/pecan20150625/wrfrun001/wrfout_d01_2015-06-25_15:00:00
 cold pool i,j:          106         289
 cold pool lat,lon:    41.15471      -101.6609    
 ambient i,j:          102         314
 ambient lat,lon:    42.03717      -101.9529    
input of propagation direction done in command line.
ho has not been defined by the user, will be calculated by tools.
properties of density current not set by user, will be calclated using other methods.
density of ambient air is larger than the density of cold air.  Check.