DrJack's WINDIP Upper-Air Wind Forecast for Waynesboro_VA on TUE 07/21 ------ WS,WD,U(kt) SITE=kshd METAR=kshd RidgePerp.=320 Run:07/21@10:30Z-10:54Z RUC : 00= / : 03= / : 06= / : 09= / : 12= / : 300mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 850mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---------------------------------------------------------------------------- NAM : 00= / : 12= / : 24= / : 36= / : 48= / : 300mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 850mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- GFS : 00= / : 12= / : 24= / : 36= / : 48= / : 60= / : 72= / : 300mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 850mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- -------------------------------------------------------------------------------------------------------- GFS : 96= / : 120= / : 144= / : 168= / : 192= / : 216= / : 240= / : 300mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 850mb: --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ------ 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.