148
FNUS76 KOTX 232237
FWSOTX

Spot Forecast for Rennie...NPS
National Weather Service Spokane WA
337 PM PDT Mon Sep 23 2024

Forecast is based on forecast start time of 0600 PDT on September 24.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
An upper ridge will move over eastern Idaho and western Montana by
Tuesday afternoon. This will bring warmer temperatures on Tuesday but
with limited smoke dispersion.  A cold front will move through
Wednesday afternoon with rain showers likely for the fire Wednesday
into Wednesday evening.  The chance of a wetting rain has increased
to 70 percent.  The front will also deliver gusty winds, and much
cooler temperatures for Wednesday night.

.TUESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....62-67.
Min humidity........43-48 percent.
Wind (20 ft)........Downslope/downvalley 2 to 5 mph through 1000 PDT
                    then upslope/upvalley 4 to 8 mph. Gusts up to
                    15 mph in the afternoon.
Mixing height.......Near the surface through 1000 PDT increasing to
                    2500 ft AGL in the afternoon.
Transport winds.....Downslope/downvalley near 5 mph through 1000
                    then south 6 to 12 mph.
Haines Index........2 Very Low.

.TUESDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....45-50.
Max humidity........75-85 percent.
Wind (20 ft)........Downslope/downvalley 2 to 5 mph, then southwest
                    5 to 8 mph overnight. Gusts up to 20 mph on ridgetops
                    overnight.
Mixing height.......Near the surface.
Transport winds.....Downslope/downvalley near 5 mph in the evening then
                    southwest 5 to 10 mph.
Haines Index........2 Very Low.

.WEDNESDAY...

Sky/weather.........Partly sunny then becoming cloudy. Rain showers
                    likely through the day.
CWR.................70 percent.
LAL.................1.
Max temperature.....52-55.
Min humidity........70-80 percent.
Wind (20 ft)........Southwest winds 6 to 14 mph. Gusts up to 30 mph
                    with the highest winds on ridgetops.
Mixing height.......1000 ft AGL increasing to 2000 ft AGL in the
                    afternoon.
Transport winds.....Southwest 15 to 20 mph.
Haines Index........2 Very Low.

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy in the evening with rain showers likely
                    then partly cloudy overnight.  Cooler
CWR.................40 percent.
LAL.................1.
Min temperature.....31-35.
Max humidity........85-95 percent.
Wind (20 ft)........Downslope/downvalley 2 to 5 mph, then southwest
                    5 to 8 mph overnight. Gusts up to 20 mph on ridgetops
                    overnight.
Mixing height.......Near the surface.
Transport winds.....West 15 to 20 mph in the evening decreasing to 5 to
                    15 mph overnight.
Haines Index........2 Very Low.

$$
Forecaster...JW
Requested by...Geoff Hibbs
Type of request...WILDFIRE
.TAG 2422792.3/OTX
.DELDT 09/23/24
.FormatterVersion 2.0.0
.EMAIL teague_walsh-felz@nps.gov,zachary_w_allen@nps.gov,geoff_hibbs@nps.gov,sofia_ecker@nps.gov