335
FNUS76 KOTX 251245
FWSOTX

Spot Forecast for St. Joe Divide (Graham Creek)...USFS
National Weather Service Spokane WA
545 AM PDT Wed Sep 25 2024

Forecast is based on ignition time of 0800 PDT on September 25.
If conditions become unrepresentative...contact the National Weather
Service.

...WIND ADVISORY IN EFFECT FROM 2 AM THIS AFTERNOON UNTIL 11 PM PDT
THIS EVENING...

...NOTE this forecast was trended off the Graham Creek
Kestral Drop observations...

.DISCUSSION...
Very warm and dry conditions are expected over the proposed spot
location today before a strong cold front arrives late in the
afternoon or early this evening. The front will deliver increasing
southwest winds, good ventilation and a very good chance of showers
and thunderstorms especially after 1800. Wetting rains are likely
overnight (75 percent chance or greater) with precipitation amounts
ranging from 0.20-0.40 inches. Conditions behind the cold front
will feature much weaker winds and significantly cooler temperatures.
No significant precipitation is forecast through the end of the week
into the weekend.


.TODAY...

Sky/weather.........Partly to Mostly sunny in the morning then
                    becoming mainly cloudy in the afternoon. A 20
                    percent chance of showers or an isolated
                    thunderstorm after 1600.
CWR.................Less than 5 percent.
LAL.................1 until 1600 then 2.
Max temperature.....Around 80.
Min humidity........35 percent.
Wind (20 ft)........South to southwest winds 4 to 7 mph this morning
                    mph shifting to the west to southwest
                    6 to 11 mph in the afternoon. Gusts of 25 to
                    30 mph possible over exposed ridges and west facing
                    aspects. Gusty and erratic winds possible
                    near thunderstorms in the afternoon.
Mixing height.......1500 ft AGL increasing to 6500 ft AGL in the
                    afternoon.
Transport winds.....Southwest 15 to 25 mph.
Haines Index........3 Very Low.

.TONIGHT...

Sky/weather.........Mostly cloudy. Rain showers likely and slight
                    chance of thunderstorms during the evening
CWR.................75 percent.
LAL.................2.
Min temperature.....Around 51.
Max humidity........90 percent.
Wind (20 ft)........Southwest to west winds 8 to 12 mph with gusts to
                    25 to 30 mph over exposed ridges and west facing
                    aspects.
Transport winds.....Southwest 15 to 21 mph.
Haines Index........4 Low.

.THURSDAY...

Sky/weather.........Sunny and much cooler.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 62.
Min humidity........42 percent.
Wind (20 ft)........Southwest to west winds 6 to 10 mph with gusts
                    up to 20 mph in the morning.
Mixing height.......2500 ft AGL increasing to 4500 ft AGL in the
                    afternoon.
Transport winds.....Southwest around 14 mph.
Haines Index........4 Low.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Mostly clear. Lows in the lower 50s. Highs in the upper 60s.
Southwest winds around 6 mph.
.SATURDAY...
Mostly clear. Lows in the upper 40s. Highs in the mid 70s. Light
terrain driven winds.
.SUNDAY...
Cooler. Partly cloudy. Lows in the upper 40s. Highs in the lower
60s. Light terrain driven winds.

$$
Forecaster...FX
Requested by...Patrick Warker
Type of request...PRESCRIBED
.TAG 2422940.1/OTX
.DELDT 09/25/24
.FormatterVersion 2.0.0
.EMAIL luke.smith2@usda.gov,patrick.warker@usda.gov,ryan.nipp@usda.gov,nws.spokane@noaa.gov.