FNUS75 KSLC 201341 FWSSLC SPOT FORECAST FOR GREENVILLE RX NATIONAL WEATHER SERVICE SALT LAKE CITY UT 741 AM MDT THU AUG 20 2009 .DISCUSSION...BUILDING HIGH PRESSURE WILL CONTINUE THE WARMING TREND TODAY AND TOMORROW. AS THE RIDGE OF HIGH PRESSURE EASES EAST...HIGH BASED MOISTURE WILL SPREAD NORTH TOWARD THE FIRE SITE BY SATURDAY...PROVIDING A FAVORABLE SET-UP FOR DRY THUNDERSTORM DEVELOPMENT. THE CHANCE FOR THUNDERSTORMS AND WETTING RAIN WILL INCREASE SUNDAY AND MONDAY AS MOISTURE CONTINUES TO SPREAD INTO THE REGION. WINDS WILL BE LIGHT AND TERRAIN DRIVEN THROUGH TOMORROW...INCREASING OUT OF THE SOUTH AND ALSO DICTATED LOCALLY BY THUNDERSTORMS DURING THE WEEKEND. .TODAY... LAL.................1. HAINES INDEX........6 ..HIGH. CLEARING INDEX......770. SKY/WEATHER.........SUNNY (0-5 PERCENT CLOUD COVER). MAX TEMPERATURE.....89-91. MIN HUMIDITY........8-10 PERCENT. WINDS - 20-FOOT.....DOWNSLOPE 2-5 MPH EARLY...BECOMING UPSLOPE 4-9 MPH FOR THE AFTERNOON. .TONIGHT... LAL.................1. HAINES INDEX........5 ..MODERATE. SKY/WEATHER.........CLEAR (0-10 PERCENT CLOUD COVER). MIN TEMPERATURE.....50-52. MAX HUMIDITY........45-47 PERCENT. WINDS - 20-FOOT.....UPSLOPE 4-9 MPH DURING THE EARLY EVENING... BECOMING DOWNSLOPE OVERNIGHT. .OUTLOOK FOR FRIDAY... LAL.................1. HAINES INDEX........6 ..HIGH. CLEARING INDEX......660. SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD COVER). MAX TEMPERATURE.....91-93. MIN HUMIDITY........7-9 PERCENT. WINDS - 20-FOOT.....DOWNSLOPE 2-5 MPH EARLY...BECOMING UPSLOPE 4-9 MPH FOR THE AFTERNOON. FORECASTER...ROGOWSKI REQUESTED BY...APRIL COX REASON FOR REQUEST...PRESCRIBED .TAG 20090820.GREEN.01/SLC $$