DrJack's WINDIP Upper-Air Wind Forecast for  Waynesboro_VA  on  FRI 05/16
 
ALERT@ 00:+ruc 12:+eta,+ngm,+avn,*ruc 24:*eta,+ngm,*avn 36:*avn 48:+eta,+ngm,+avn 72:+avn 96:+mrf 120:+mrf 144:*mrf
 
------  WS,WD,U(kt)  SITE=kshd  METAR=kshd  RidgePerp.=320  Run:05/16@13:30Z-13:36Z
 
RUC  :  00=05/16:12Z  03=05/16:15Z  06=05/16:18Z  09=05/16:21Z  12=05/17: 0Z
300mb:  + 82 260  41  * 95 266  56  *104 260  52  *120 258  56  *133 251  48
850mb:  + 22 250   7  * 28 265  16  * 29 262  15  * 31 298  29  * 37 329  37
 
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ETA  :  00=05/16:00Z  12=05/16:12Z  24=05/17: 0Z  36=05/17:12Z  48=05/18: 0Z
300mb:    72 258  34  + 84 265  48  *132 252  49    61 298  57  + 88 260  44
850mb:    11 191  -7  + 24 250   8  * 27 312  27    23 311  23  + 34 244   8
 
NGM  :  00=05/16:00Z  12=05/16:12Z  24=05/17: 0Z  36=05/17:12Z  48=05/18: 0Z
300mb:    69 257  31  + 87 259  42  +117 253  46    58 279  44  + 80 254  33
850mb:    10 197  -5  + 20 248   6  + 23 308  23    19 303  18  + 33 243   7
 
AVN  :  00=05/16:00Z  12=05/16:12Z  24=05/17: 0Z  36=05/17:12Z  48=05/18: 0Z  60=05/18:12Z  72=05/19: 0Z
300mb:    72 252  27  + 81 260  40  *143 256  63  * 78 283  62  + 75 259  36   107 254  44  +110 244  26
850mb:     5 177  -4  + 34 252  13  * 33 326  33  * 32 294  29  + 34 271  22    18 266  11  + 25 290  22
 
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MRF  :  96=05/20: 0Z 120=05/21: 0Z 144=05/22: 0Z 168=05/23: 0Z 192=05/24: 0Z 216=05/25: 0Z 240=05/26: 0Z
300mb:  + 80 299  74  + 82 234   6  * 70 301  66    39 195 -22    42 243   9    38 229  -1    46 207 -18
850mb:  + 24 259  12  + 34 260  17  * 21 285  17    24 186 -17    37 195 -21    25 219  -5    21 236   2
 
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The criterion "mt. wave" windspeeds used for this site are:
To have a mt. wave somewhere (indicated by "+" marks)
  (1) windspeed of 65 kt at 300 mb (approx. 31,000 ft)
  (2) windspeed of 20 kt at "ridgetop" level of 850 mb (approx. 5,000 ft)
To have a mt. wave at designated ridge (indicated by "*" marks)
  (1) perpendicular wind of 46 kt at 300 mb (approx. 31,000 ft)
  (2) perpendicular wind of 14 kt at "ridgetop" level of 850 mb (approx. 5,000 ft)
These criteria based on the those empirically developed
for the Sierra wave by Doug Armstrong of the Reno NWS
 
For a description of the forecast format and forecasts for other locations, see: 
   http://www.drjack.info/WINDIP/
Please recognize that the utilized mt. wave criterion is simplistic
while mt. wave behavior can be complex, so the simple yes/no program
predictions cannot be expected to cover all mt. wave occurrences.