FNUS75 KSLC 101445 FWSSLC SPOT FORECAST FOR FARMINGTON BAY NATIONAL WEATHER SERVICE SALT LAKE CITY UT 845 AM MDT WED OCT 10 2012 .DISCUSSION...HIGH PRESSURE OVER THE AREA TODAY WILL TEND TO WEAKEN AS THE LOW OVER CALIFORNIA SLOWLY MAKES ITS WAY TOWARD THE STATE. THE SYSTEM WILL CROSS SOUTHERN UTAH ON FRIDAY...BRINGING FAIRLY WIDESPREAD PRECIPITATION. HOWEVER...MOISTURE AND INSTABILITY AHEAD OF THE SYSTEM IS ALREADY STARTING TO CREEP INTO THE STATE. THE AIRMASS WILL BE SOMEWHAT STABLE WITH LIGHT TRANSPORT WINDS...BUT THERE SHOULD BE ENOUGH INSTABILITY OVER THE NEXT COUPLE OF DAYS TO ALLOWING FOR A CLEARING INDEX AROUND 500. HIGH PRESSURE WILL RETURN FOR THE WEEKEND. .TODAY... LAL.................1. HAINES INDEX........3 ..VERY LOW. CLEARING INDEX......500. SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT CLOUD COVER). MAX TEMPERATURE.....74-78. MIN HUMIDITY........26-30 PERCENT. WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS 3-7 MPH. .TONIGHT... LAL.................1. HAINES INDEX........3 ..VERY LOW. SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT CLOUD COVER). MIN TEMPERATURE.....45-49. MAX HUMIDITY........67-71 PERCENT. WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY WINDS UP TO 5 MPH. .OUTLOOK FOR THURSDAY... LAL.................1. HAINES INDEX........3 ..VERY LOW. CLEARING INDEX......500. SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT CLOUD COVER). MAX TEMPERATURE.....74-78. MIN HUMIDITY........29-33 PERCENT. WINDS - 20-FOOT.....UPSLOPE/UPVALLEY WINDS 3-7 MPH. FORECASTER...TRAPHAGAN REQUESTED BY...DUSTY REASON FOR REQUEST...PRESCRIBED .TAG 20121010.FARMI.01/SLC $$