DrJack's WINDIP Upper-Air Wind Forecast for BISHOP on FRI 10/20 ALERT@ 00:*eta,*avn,*ruc ------ WS,WD,U(kt) SITE=kbih METAR=kbih RidgePerp.=255 Run:10/20@16:33Z-16:39Z RUC : 00=99/OCT:20Z 03=10/20:18Z 06=10/20:21Z 09=10/21: 0Z 12=10/21: 3Z 300mb: *107 285 93 * 92 287 78 * 97 297 72 97 300 69 90 308 54 700mb: * 36 267 35 * 27 282 24 * 26 290 21 24 309 14 22 325 7 ---------------------------------------------------------------------------- NAM : 00=10/20:12Z 12=10/21: 0Z 24=10/21:12Z 36=10/22: 0Z 48=10/22:12Z 300mb: * 91 286 78 106 305 68 66 317 31 40 313 21 23 286 20 700mb: * 38 258 38 7 319 3 20 328 6 4 317 2 7 319 3 GFS : 00=10/20:12Z 12=10/21: 0Z 24=10/21:12Z 36=10/22: 0Z 48=10/22:12Z 60=10/23: 0Z 72=10/23:12Z 300mb: * 94 285 82 101 306 64 75 320 32 39 315 20 28 285 24 30 303 20 22 296 16 700mb: * 31 248 31 13 291 11 12 310 7 3 319 1 5 250 5 3 039 -2 5 094 -5 -------------------------------------------------------------------------------------------------------- GFS : 96= / : 120= / : 144= / : 168= / : 192= / : 216= / : 240= / : 300mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 700mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ------ 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.