FNUS75 KTFX 161432 FWSTFX SPOT FORECAST FOR UPPER ARMELLS...BLM LEWISTOWN DISPATCH NATIONAL WEATHER SERVICE GREAT FALLS MT 732 AM MST TUE FEB 16 2010 FORECAST IS BASED ON IGNITION TIME OF 0725 MST ON FEBRUARY 16. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A WEAK UPPER LEVEL HIGH PRESSURE RIDGE WILL BE OVER THE REGION TODAY. THIS WILL KEEP THE AIRMASS STABLE WITH LIGHT SURFACE WINDS. A LOW PRESSURE TROF WILL APPROACH THE ROCKIES LATER TODAY. THIS WILL INCREASE CLOUD COVER LATER IN THE AFTERNOON AND TONIGHT. THIS TROF WILL BRING A CHANCE OF SNOW INTO THE AREA WEDNESDAY. .TODAY... SKY/WEATHER.........PARTLY SUNNY. FOG DISSIPATING BY MID MORNING. MAX TEMPERATURE.....38-43. WIND (20 FT)........LIGHT AND VARIABLE WINDS BECOMING SOUTHWEST WINDS 5 TO 10 MPH DURING THE AFTERNOON. .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW. MAX TEMPERATURE.....33-38. WIND (20 FT)........WEST WINDS AROUND 10 MPH. $$ FORECASTER...ZELZER REQUESTED BY...JOSH BARTA TYPE OF REQUEST...PRESCRIBED .TAG 20100216.UPPER.01/TFX