FNUS75 KSLC 220516 FWSSLC SPOT FORECAST FOR TOPLIFF NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1116 PM MDT THU JUL 21 2011 .DISCUSSION...DRY SOUTHWEST FLOW ALOFT WILL CONTINUE TO ALLOW FOR VERY POOR HUMIDITY RECOVERY OVERNIGHT TONIGHT. LOOK FOR HUMIDITY TO ONLY REBOUND INTO THE 18-22 PERCENT RANGE OVERNIGHT...THIS WITH LIGHT DOWNSLOPE WINDS OF 4-9 MPH. FOR FRIDAY WINDS LOOK TO BECOME SOUTHWESTERLY BY MID MORNING WITH GUSTS APPROACHING MID 20 MPH RANGE BY MIDDAY AND AFTERNOON AHEAD OF A WEAK COLD FRONT APPROACHING FROM THE NORTHWEST. NEEDLESS TO SAY...WITH POOR HUMIDITY RECOVERY OVERNIGHT...RH ON FRIDAY WILL DIP RAPIDLY WITH INCREASE OF WINDS AND TEMPS LOWERING TO NEAR 10 PERCENT DURING PEAK HEATING. SAID FRONT WILL GRADUALLY SAG INTO THE WESTERN DESERT IN THE AFTERNOON BEFORE SLOWLY SAGGING THROUGH THE SITE OVERNIGHT ALLOWING FOR BETTER HUMIDITY RECOVERY AND A SWITCH TO LIGHT NORTHERLY WINDS EARLY SATURDAY MORNING. .REST OF TONIGHT... LAL.................1. HAINES INDEX........5 ..MODERATE. SKY/WEATHER.........CLEAR (0-5 PERCENT CLOUD COVER). MIN TEMPERATURE.....61-63. MAX HUMIDITY........18-22 PERCENT. WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY 4-8 MPH. .FRIDAY... LAL.................1. HAINES INDEX........5 ..MODERATE. CLEARING INDEX......1000+. SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER). MAX TEMPERATURE.....84-86. MIN HUMIDITY........9-15 PERCENT. WINDS - 20-FOOT.....DOWNSLOPE/DOWNVALLEY 4-8 MPH THROUGH 1000... BECOMING SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE 1100-1600 TIMEFRAME. .OUTLOOK FOR SATURDAY... LAL.................1. HAINES INDEX........5 ..MODERATE. CLEARING INDEX......520. SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER). MAX TEMPERATURE.....83-85. MIN HUMIDITY........20-22 PERCENT. WINDS - 20-FOOT.....NORTHWEST WINDS 5 MPH THROUGH 1000 THEN BECOMING NORTH 5 TO 10 MPH AFTER 1100. FORECASTER...MERRILL REQUESTED BY...GREG BLANK REASON FOR REQUEST...WILDFIRE .TAG 20110721.TOPLI.02/SLC $$