339
FNUS75 KMSO 310223
FWSMSO

Spot Forecast for Ransome
National Weather Service Missoula MT
823 PM MDT Sat Aug 30 2025

Forecast is based on forecast start time of 1500 MDT on August 31.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Ridge of high pressure will strengthen, allowing for
warming and drying trend to return. A strengthening thermal trough
over eastern Washington and Oregon combined with evening cooling
will generate easterly winds by later Sunday evening and continue
into the overnight in the upper slopes. This similar occurrence
will be possible for the remainder of the week. As the daytime
temperatures warm up, the easterly winds will disappear. Minimum
RHs could be getting close to the upper single digits by Monday
in the lower elevations towards 3200 feet MSL.

.SUNDAY...

* Sky/Weather.........Mostly sunny.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....Upper: 80-86.
                      Lower: 87-94.
* Min Humidity........Upper: 17-20 percent.
                      Lower: 12-16 percent.
* Wind (20 ft)........Variable 1-3 mph becoming Upslope 5 to 10 mph.
* Mixing Height.......10000 ft agl.
* Mixing Winds........South 10 mph.
* Precip Amount.......0.00 inches.

.SUNDAY NIGHT...

* Sky/Weather.........Partly cloudy.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Min Temperature.....Upper: 65-69.
                      Lower: 60-64.
* Max Humidity........Upper: 24-31 percent.
                      Lower: 32-38 percent.
* Wind (20 ft)........Upper: Upslope 4 to 9 mph becoming Southeast
                          8 to 13 mph with gusts to 18 mph by 9 pm.
                      Lower: Upslope 4 to 7 mph becoming Southeast
                          4 to 7 mph.
* Mixing Height.......6500 ft agl decreasing to less than 100 ft
  agl, except upper portions may remain at 1500 ft agl.
* Mixing Winds........Upper: Southeast 15 mph.
                      Lower: South 5 mph.
* Precip Amount.......0.00 inches.

.LABOR DAY...

* Sky/Weather.........Mostly sunny.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....Upper: 82-88.
                      Lower: 89-96.
* Min Humidity........Upper: 15-18 percent.
                      Lower: 10-14 percent.
* Wind (20 ft)........Upper: Southeast 10 to 16 mph lessening to
                          Southeast 7 to 12 mph by Noon. Upslope
                          5 to 9 mph, except southwest 10 to 18 mph on ridges.
                      Lower: Southeast 4 to 7 mph becoming upslope
                         4 to 8 mph. At times, the southwest winds may
                         mix down(Southwest 8 to 12 gusts to 18 mph.)
* Mixing Height.......2500 ft agl increasing to 11000 ft agl.
* Mixing Winds........East 15 mph becoming Southwest 15 mph in the
                      afternoon.
* Precip Amount.......0.00 inches.

$$
Forecaster...Noble
Requested by...Michele Mavor
Type of request...WILDFIRE
.TAG 2520408.9/MSO
.DELDT 08/30/25
.FormatterVersion 2.0.0
.EMAIL michele.mavor@usda.gov