396
FNUS76 KOTX 202315
FWSOTX

Spot Forecast for Modrite...NE WA IMT #1
National Weather Service Spokane WA
415 PM PDT Mon Jul 20 2026

Forecast is based on forecast start time of 0600 PDT on July 21.
...HEAT ADVISORY IN EFFECT FROM 9 AM TUESDAY TO 9 PM PDT
WEDNESDAY...

.DISCUSSION...

Warm and dry weather is expected through Wednesday. RH recovery
overnight will be poor. Mid and high clouds continue to move into
the region. An increase in smoke region regional wildfires will
result in hazy skies for the next several days. Cloud cover and
smoke could lead to cooler temperatures than forecast. Winds will
be fairly light. There is a small chance (15% chance) of
thunderstorms Thursday as a weather system approaches.

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).
***************************************************************

.TUESDAY...

Sky/weather.........Partly cloudy. Haze and smoke.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....93.
Min humidity........15-20 percent.
Wind (20 ft)........Northeast winds 4-8 mph becoming southeast
                    3-5 mph in the afternoon.
Mixing height.......7500 ft AGL.
Transport winds.....North around 6 mph shifting to the west around
                    7 mph in the afternoon.
Ventilation Index...Moderate (239) increasing to high (558) in the
                    afternoon.

.TUESDAY NIGHT...

Sky/weather.........Partly cloudy. Haze and smoke.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....71.
Max humidity........38-43 percent.
Wind (20 ft)........Light and variable winds 0-2 mph.
Mixing height.......Falling to near surface around 2000 hours.
Transport winds.....Northeast around 5 mph.
Ventilation Index...Moderate (492) decreasing to low (24)
                    overnight.

.WEDNESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....98.
Min humidity........13-18 percent.
Wind (20 ft)........Light winds becoming southwest winds
                    5-10 mph by 1300 hours.
Mixing height.......10000 ft AGL.
Transport winds.....East around 5 mph shifting to the southwest in
                    the afternoon.
Ventilation Index...Moderate (431) increasing to very high (1278)
                    in the afternoon.

$$
Forecaster...DB
Requested by...Dusty Patrick
Type of request...WILDFIRE
.TAG 2617701.3/OTX
.DELDT 07/20/26
.FormatterVersion 2.0.0
.EMAIL dusty.patrick@gmail.com