SOARING FORECAST FEBRUARY 18-21, 2011

CURRENT SOARING FORECAST FOR SCSA (CRYSTALAIRE - 46CN) FEBRUARY 18-21, 2011 THIS WEEKEND: A WILD WEEKEND OF WEATHER INTERSPERSED WITH EXCELLENT OPPORTUNITIES FOR WAVE IS FORECAST.The jetstream is powering an arc of Pacific moisture which will drive across southern California Friday and Saturday. It will quickly dissapate eastward Saturday night leaving us with a good weather outlook for flights on Sunday and improving to downright sunny on Monday. With both the arrival and passage of this front we expect dramatic wave to occur. Sunday and Monday will be the most dramatic wave days. Friday we'll likely see pre-frontal wave. See graphic of 700 MB (10,000 feet) vertical velocity below. FRIDAY'S 700MB VERTICAL VELOCITY (WAVE POTENTIAL) FORECAST JETSTREAM FORECAST The National Weather Service is predicting the following local surface conditions for Friday through Monday: FRIDAY:Some clouds, chance of rain, Temperature: 56 degreesWind: North 5-10 mph. becoming south southwest between 20 and 25 mph.SATURDAY:Cloudy, Chance of rain. Temperature: 43 degreesWind: Southwest 15-20 mph.SUNDAYMostly sunny, Temperature: 44 degreesWind: Southwest 10 mph.MONDAY:Sunny, Temperature: 48 degreesWind: Southwest 15 mph.