FAUS20 KZLC 172310 ZLC MIS 01 VALID 172300-181200 ...FOR ATC PLANNING PURPOSES ONLY... A STRONG SYSTEM IS BRING WIDESPREAD WIND AND TURBULENCE WITH IT FOR ZLC THIS AFTERNOON. SURFACE WINDS ACROSS MT WILL CONTINUE TO GUST IN EXCESS OF 45 KTS THROUGH 05Z BEFORE BEGINNING TO TAPER OFF. SIGMET YANKEE SERIES WILL LOOK TO CONTINUE THROUGH MUCH OF THE NIGHT WITH OCNL TO FREQ SEV TURB BLW FL220. AT THE HIGH LEVELS, MTW AND SEV TURB IS EXPECTED FOR MUCH OF ZLC THIS AFTERNOON AS WELL, WITH SIGMET PAPA SERIES CONTINUE. FOR ZLC AREAS, DUE TO THE SHEAR SIZE OF THE SIGMET, LOOK FOR CWA'S TO BE ISSUED FOR SPECIFIC AREAS COVERING ADDITIONAL DETAILS. =