465
FNUS76 KOTX 291328
FWSOTX

Spot Forecast for Pino Blanco Unit 9...USFS
National Weather Service Spokane WA
628 AM PDT Tue Sep 29 2026

Forecast is based on ignition time of 0720 PDT on September 29.
.DISCUSSION...

A weather system moving into the region today will bring
breezy southwest winds with an abundance of mid and high clouds.
Light rain or sprinkles will be possible at times today into
tonight.  The front will sag south of the unit Wednesday with
winds shifting to the west and skies slowly clearing.  There is
moderate uncertainty in minimum humidities tomorrow which could
be as low as 30% or remain near 50% if the front is slow to
clear.

If conditions become unrepresentative, contact the National Weather
Service.
***************************************************************
Forecasts for 20 foot wind speeds (valleys and ridge tops) are
10 minute averages reflecting RAWS wind.
***Ventilation Index is derived from transport wind
   multiplied by the mixing height divided by 100.
   Categories: low (< 200), moderate (200-500),
   high (500-800), and very high (> 800).
***************************************************************

.REST OF TODAY...

Sky/weather.........Partly sunny. Slight chance of sprinkles.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....60.
Min humidity........40-45 percent.
Wind (20 ft)........Southwest winds 8 to 13 mph gusts around 19 mph.
Mixing height.......3200 ft AGL in the afternoon.
Transport winds.....Southwest 15 to 19 mph.
Ventilation Index...Moderate (372) increasing to high (617) in the
                    afternoon.

.TONIGHT...

Sky/weather.........Mostly cloudy. Slight chance of sprinkles.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....47.
Max humidity........80-85 percent.
Wind (20 ft)........Southwest winds 6 to 12 mph gusts 18 mph.
Mixing height.......900 ft AGL.
Transport winds.....Southwest 14 to 15 mph.
Ventilation Index...Low (183).

.WEDNESDAY...

Sky/weather.........Mostly cloudy becoming partly sunny. 15% chance
                    of light rain in the morning.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....58.
Min humidity........50-55% until late afternoon into the
                    evening then decreasing near 40 percent or lower.
Wind (20 ft)........Southwest winds 5 to 9 mph becoming west 5 to 9 mph
                    gusts to 14 mph.
Mixing height.......4600 ft AGL in the afternoon.
Transport winds.....West 10 to 11 mph.
Ventilation Index...Moderate (459).

$$
Forecaster...SB
Requested by...Seth Chaffee
Type of request...PRESCRIBED
.TAG 2622656.1/OTX
.DELDT 09/29/26
.FormatterVersion 2.0.0
.EMAIL justin.gilbert@usda.gov,cody.cline@usda.gov,seth.chaffee@usda.gov,chad.borg@usda.gov,devyn.garcia@usda.gov,alan.carlson@usda.gov