DrJack's WINDIP Upper-Air Wind Forecast for  RENO  on  WED 07/28
 
------  WS,WD,U(kt)  SITE=krno  METAR=krno  RidgePerp.=280  Run:07/28@16:31Z-16:31Z
 
RUC  :  00=07/28:15Z  03=07/28:18Z  06=07/28:21Z  09=07/29: 0Z  12=07/29: 3Z
300mb:    58 228  36    57 228  35    60 222  32    64 222  34    70 223  38
700mb:    12 198   2    16 211   6    14 229   9    10 220   5     7 182  -1
 
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NAM  :  00=07/28:12Z  12=07/29: 0Z  24=07/29:12Z  36=07/30: 0Z  48=07/30:12Z
300mb:    65 224  36    62 226  37    57 232  38    56 241  44    59 242  47
700mb:    12 177  -3     9 234   6    14 184  -1    11 210   4    18 209   6
 
GFS  :  00=07/28:12Z  12=07/29: 0Z  24=07/29:12Z  36=07/30: 0Z  48=07/30:12Z  60=07/31: 0Z  72=07/31:12Z
300mb:    65 215  27    65 219  31    58 226  34    54 230  35    62 231  41    61 229  38    60 235  43
700mb:    11 196   1     5 258   5     9 116  -9     7 263   7    12 191   0    13 244  11    15 229   9
 
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GFS  :  96=08/01: 0Z 120=08/02: 0Z 144=08/03: 0Z 168=08/04: 0Z 192=08/05: 0Z 216=08/06: 0Z 240=08/07: 0Z
300mb:    60 244  49    36 264  35    11 323   8     6 118  -6    11 237   8    43 258  40    58 243  46
700mb:    13 277  13     7 281   7     5 260   5     3 228   2     7 208   2     9 242   7     9 252   8
 
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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 25 kt at "ridgetop" level of 700 mb (approx. 10,500 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 18 kt at "ridgetop" level of 700 mb (approx. 10,500 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.