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FNUS75 KREV 310430
FWSREV

Spot Forecast for Casa 12.4 Rx...U.S. Forest Service
National Weather Service Reno NV
930 PM PDT Fri Oct 30 2026

Forecast is based on ignition time of 0730 PDT on October 31.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Southeast winds increase late Saturday morning, with gusts
  of 20-25 mph during the afternoon and early evening. Winds
  shift northwest Saturday night and continue through Sunday.

* The main precipitation period is Saturday night into early
  Sunday, with rain mixing with and changing to snow overnight.
  Light snow accumulation is possible before showers diminish
  Sunday morning.

* Smoke dispersion improves with daytime mixing, but remains
  limited early in the morning and overnight. Warmer and
  generally dry weather returns early next week.

.SATURDAY...

Sky/Weather.........Mostly cloudy. Chance of rain in the afternoon.
Temperature.........Max 46-50.
RH..................Min 50-55%.
20-Foot Winds.......Light winds early in the morning, becoming
                    southeast 7-12 mph late in the morning and
                    afternoon. Gusts to 20-25 mph in the afternoon.
Chc Wetting Rain....5%.
Chance of thunder...5%.
Mixing Height.......500-1000 ft agl early in the morning, increasing
                    to 4000-5000 ft agl in the afternoon, then
                    decreasing to 2000-3000 ft agl near sunset.
Transport Winds.....South 5-10 mph early in the morning, increasing
                    to south to southeast 15-20 mph late in the
                    morning and afternoon.
Ventilation.........Poor early, improving to good to very good during
                    the afternoon.

.SATURDAY NIGHT...

Sky/Weather.........Cloudy. Rain likely in the evening, mixing with
                    and changing to snow overnight. Snow accumulation
                    less than 1 inch.
Temperature.........Min 28-32.
RH..................Max 95-100%.
20-Foot Winds.......Southeast 5-9 mph with gusts to around 20 mph early
                    in the evening, becoming northwest 3-7 mph late in
                    the evening and overnight.
Chc Wetting Rain....75%.
Chance of thunder...10%.
Mixing Height.......700-1500 ft agl.
Transport Winds.....South to southeast 5-10 mph in the evening, becoming
                    west to northwest 5-10 mph overnight.
Ventilation.........Marginal to poor.

.SUNDAY...

Sky/Weather.........Mostly cloudy early, becoming partly cloudy. Snow
                    likely early in the morning, ending by late morning.
Temperature.........Max 43-47.
RH..................Min 50-55%.
20-Foot Winds.......Northwest 5-10 mph. Gusts to 15-20 mph late in the
                    morning and afternoon.
Chc Wetting Rain....25% early, decreasing to 5% by late morning.
Chance of thunder...5% in the morning.
Mixing Height.......700-1500 ft agl early in the morning, increasing to
                    4000-5000 ft agl late in the morning and afternoon.
Transport Winds.....Northwest 5-10 mph early in the morning, increasing
                    to 10-15 mph late in the morning and afternoon.
Ventilation.........Poor early, improving to good during the late morning
                    and afternoon.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY...
Clear. Lows in the mid 20s. Highs in the lower 50s. Slope winds.
.TUESDAY...
Partly cloudy. Lows around 30. Highs in the lower 50s. Slope
winds.
.WEDNESDAY...
Clear. Lows in the upper 20s. Highs in the lower 50s. Slope
winds.

$$
Forecaster...Johnston
Requested by...Grant Meadows
Type of request...PRESCRIBED
.TAG 2624613.4/REV
.DELDT 10/31/26
.FormatterVersion 2.0.0
.EMAIL grant.meadows@usda.gov