Spot Forecast
Issued by NWS Reno, NV

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FNUS75 KREV 121331
FWSREV

Spot Forecast for Ash Hand Piles...USFS
National Weather Service Reno NV
531 AM PST Wed Nov 12 2025

Forecast is based on ignition time of 1000 PST on November 13.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* An incoming storm system is expected to produce gusty southerly
  winds on Thursday.

* Wetting rains are expected on Thursday with light snow showers
  possible by Friday morning.

.THURSDAY...

Sky/Weather.........Cloudy. 20-40% chance of rain with amounts of
0.10-0.30".
Temperature.........45-48 at ignition...Max 48-51.
RH..................80-84% at ignition...Min 77-82%.
20-Foot Winds.......South winds 17-22 mph with gusts up to 40
                    mph decreasing to 12-17 mph with gusts to
                    around 30 mph late in the afternoon.
Chc Wetting Rain....20%.
Chance of thunder...10%.
Mixing Height.......3300-3700 ft agl.
Transport Winds.....South around 40 mph decreasing to around 30 mph
                    late in the afternoon.
Ventilation.........Very good to excellent.

TIME (PST)      10 AM     1 PM
Sky (%).........94        94
Weather cov.....CHANCE    CHANCE
Weather type....RAIN      RAIN
Tstm cov........
CWR.............20        20
Chc of thdr (%).10        10
Temp............46        48
RH..............83        81
20 FT wind......S 22G35   S 17G30
Mx ht msl (kft).3.6       3.3
Transport wind..S 40      S 30
Vrate kt-ft/1K..121       88
Ventrate Cat....EXNT      VYGD

.THURSDAY NIGHT...

Sky/Weather.........Mostly cloudy. Chance of rain in the evening,
                    then rain likely overnight. Snow likely after 3
                    am.
Temperature.........Min 32-37.
RH..................Max 93-98%.
20-Foot Winds.......South winds 9-14 mph with gusts to around 25
                    mph decreasing to 7-9 mph after 3 am.
Chc Wetting Rain....20%.
Chance of thunder...10% in the evening.
Mixing Height.......1300-1800 ft agl.
Transport Winds.....South around 25 mph decreasing to 10-15 mph in
                    the late evening and overnight.
Ventilation.........Good to marginal.

TIME (PST)      4 PM      7 PM      10 PM     1 AM
Sky (%).........80        77        70        70
Weather cov.....CHANCE    CHANCE    LIKELY    LIKELY
Weather type....RAIN      RAIN      RAIN      RNSN
Tstm cov........
CWR.............20        20        20        20
Chc of thdr (%).10        10        0         0
Temp............46        45        42        40
RH..............82        82        85        86
20 FT wind......S 14G25   S 12G20   S 12G20   S 9G15
Mx ht msl (kft).2.4       1.2       1.6       1.2
Transport wind..S 25      S 15      S 10      S 10
Vrate kt-ft/1K..48        15        16        10
Ventrate Cat....GOOD      MRGL      MRGL      MRGL

.FRIDAY...

Sky/Weather.........Mostly cloudy then becoming partly cloudy.
                    Chance of rain and snow in the morning.
Temperature.........Max 45-49.
RH..................Min 60-65%.
20-Foot Winds.......South winds around 7 mph early in the morning
                    becoming light.
Chc Wetting Rain....5%.
Chance of thunder...0%.
Mixing Height.......2500-3500 ft agl.
Transport Winds.....Light winds becoming south 10-15 mph in the
                    late morning and afternoon.
Ventilation.........Poor to fair.

TIME (PST)      4 AM      7 AM      10 AM     1 PM
Sky (%).........65        65        42        43
Weather cov.....CHANCE    CHANCE
Weather type....RNSN      RNSN      NONE      NONE
Tstm cov........
CWR.............10        10        0         0
Chc of thdr (%).0         0         0         0
Temp............37        35        41        46
RH..............93        92        83        67
20 FT wind......S 7G15    S 6G15    S 6G15    SW 6G15
Mx ht msl (kft).0.9       0.9       2.6       3.6
Transport wind..S 5       S 10      S 15      S 15
Vrate kt-ft/1K..6         7         28        39
Ventrate Cat....POOR      POOR      FAIR      FAIR

$$
Forecaster...Fuentes/Crespo
Requested by...Chris Crowl
Type of request...PRESCRIBED
.TAG 2525599.0/REV
.DELDT 11/12/25
.FormatterVersion 2.0.0
.EMAIL christopher.crowl@usda.gov