DrJack's WINDIP Upper-Air Wind Forecast for  Waynesboro_VA  on  SUN 09/05
 
ALERT@ 216:*mrf
 
------  WS,WD,U(kt)  SITE=kshd  METAR=kshd  RidgePerp.=320  Run:09/05@13:30Z-13:36Z
 
RUC  :  00=09/05:12Z  03=09/05:15Z  06=09/05:18Z  09=09/05:21Z  12=09/06: 0Z
300mb:    79 244  19    75 238  11    67 240  11    53 238   7    49 243  11
850mb:    19 300  18    10 283   8     8 271   5     8 252   3     7 246   2
 
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NAM  :  00=09/05:00Z  12=09/05:12Z  24=09/06: 0Z  36=09/06:12Z  48=09/07: 0Z
300mb:    65 256  29    78 246  22    49 242  10    20 270  13    34 315  34
850mb:    15 285  12    18 298  17     6 226  -0    10 246   3    12 186  -8
 
GFS  :  00=09/05:00Z  12=09/05:12Z  24=09/06: 0Z  36=09/06:12Z  48=09/07: 0Z  60=09/07:12Z  72=09/08: 0Z
300mb:    64 263  35    71 248  22    44 247  13    27 276  19    55 316  55    44 289  38    47 276  34
850mb:    19 279  14    16 303  15     6 241   1    12 236   1    17 209  -6    18 264  10    21 247   6
 
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GFS  :  96=09/09: 0Z 120=09/10: 0Z 144=09/11: 0Z 168=09/12: 0Z 192=09/13: 0Z 216=09/14: 0Z 240=09/15: 0Z
300mb:    61 287  51    53 298  49    32 303  31    30 265  17    62 272  42  * 70 287  59    63 306  61
850mb:    25 287  21    16 297  15     5 253   2    15 227  -1     8 288   7  * 25 298  23    18 299  17
 
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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.