DrJack's WINDIP Upper-Air Wind Forecast for RENO on THU 03/11 ALERT@ 48:*eta,*avn ------ WS,WD,U(kt) SITE=krno METAR=krno RidgePerp.=280 Run:03/11@16:31Z-16:31Z RUC : 00=03/11:15Z 03=03/11:18Z 06=03/11:21Z 09=03/12: 0Z 12=03/12: 3Z 300mb: 56 310 49 53 299 50 48 294 47 41 283 41 38 270 37 700mb: 15 318 12 13 298 12 17 278 17 14 273 14 11 254 10 ---------------------------------------------------------------------------- NAM : 00=03/11:12Z 12=03/12: 0Z 24=03/12:12Z 36=03/13: 0Z 48=03/13:12Z 300mb: 59 318 47 44 282 44 37 249 32 63 226 37 * 66 282 66 700mb: 19 335 11 18 262 17 28 234 19 40 235 28 * 36 245 30 GFS : 00=03/11:12Z 12=03/12: 0Z 24=03/12:12Z 36=03/13: 0Z 48=03/13:12Z 60=03/14: 0Z 72=03/14:12Z 300mb: 59 318 47 45 277 45 43 246 36 62 227 37 * 83 317 66 79 332 49 61 337 33 700mb: 19 335 11 15 246 12 28 231 18 53 222 28 * 26 302 24 13 021 -2 18 025 -5 -------------------------------------------------------------------------------------------------------- GFS : 96=03/15: 0Z 120=03/16: 0Z 144=03/17: 0Z 168=03/18: 0Z 192=03/19: 0Z 216=03/20: 0Z 240=03/21: 0Z 300mb: 55 331 35 51 268 50 69 240 53 26 317 21 44 328 29 42 301 39 49 281 49 700mb: 9 019 -1 16 226 9 20 237 15 5 295 5 11 330 7 13 312 11 18 267 17 ------ 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.