743 FNUS75 KMSO 151118 FWSMSO Spot Forecast for 12 Mile Fire National Weather Service Missoula MT 518 AM MDT Tue Sep 15 2020 Forecast is based on forecast start time of 0700 MDT on September 15. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... ...High pressure will persist today through Thursday. These stable conditions will keep skies smoky with limited visibilities. Relative humidities will lower into the upper teens. Thick smoke will limit temperature rises today. Friday a cold front will be approaching the 12 mile fire. Expect an increase in southerly winds Friday. .REST OF TODAY... * Sky/Weather.........Sunny. * CWR (> 0.10 Inch)...0 percent. * LAL.................1. * Max Temperature.....74-79. * Min Humidity........19-24 percent. * Wind (20 ft)........West 3-7 mph. Gusts up to 20 mph in the afternoon on ridges. * Mixing Height.......Less than 100 ft agl increasing to 7000 ft agl in the afternoon. * Mixing Winds........West 10 mph. * Haines Index........4 low. * Precip Amount.......0.00 inches. .TONIGHT... * Sky/Weather.........Clear. * CWR (> 0.10 Inch)...0 percent. * LAL.................1. * Min Temperature.....41-46. * Max Humidity........52-57 percent. * Wind (20 ft)........Downslope/Downvalley 3-5 mph after 2000. * Mixing Height.......7000 ft agl decreasing to less than 100 ft agl after sunset. * Mixing Winds........Southwest 10 mph. * Precip Amount.......0.00 inches. .WEDNESDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * LAL.................1. * Max Temperature.....76-81. * Min Humidity........18-23 percent. * Wind (20 ft)........Upslope/upvalley 3-6 mph in the afternoon. * Mixing Height.......Less than 100 ft agl increasing to 9000 ft agl in the afternoon. * Mixing Winds........Southwest 10 mph. * Haines Index........5 moderate. * Precip Amount.......0.00 inches. $$ Forecaster...RPN Requested by...Jonah Vaughan Type of request...WILDFIRE .TAG 2012560.2/MSO .DELDT 09/15/20 .EMAIL jonah.e.vaughan@usda.gov