578
FNUS75 KREV 170901
FWSREV

Spot Forecast for Upper Truckee 210/ SS 38 Gunmount...USFS LTBMU
National Weather Service Reno NV
201 AM PDT Fri Oct 17 2025

Forecast is based on ignition time of 0800 PDT on October 17.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Dry conditions prevail through Saturday with a warming trend,
  light winds and limited mixing/ventilation.

.TODAY...

Sky/Weather.........Sunny.
Temperature.........32 at ignition...Max 63.
RH..................53% at ignition...Min 29%.
20-Foot Winds.......Winds south at 3 mph at ignition...otherwise
                    Upslope 3-7 mph.
Chance of thunder...0%.
Transport Winds.....East around 10 mph in the late morning and
                    early afternoon becoming light.
Ventilation.........Marginal to fair.

TIME (PDT)      8 AM      11 AM     2 PM
Sky (%).........7         14        18
Weather cov.....
Weather type....NONE      NONE      NONE
Tstm cov........
Chc of thdr (%).0         0         0
Temp............32        55        63
RH..............53        38        29
20 FT wind......S 3G10    NE 3G10   N 2G5
Transport wind..E 10      E 10      NE 5
Vrate kt-ft/1K..13        24        18
Ventrate Cat....MRGL      FAIR      MRGL

.TONIGHT...

Sky/Weather.........Clear.
Temperature.........Min 36.
RH..................Max 57%.
20-Foot Winds.......Downslope 2-6 mph.
Chance of thunder...0%.
Transport Winds.....Light winds.
Ventilation.........Marginal to poor.

TIME (PDT)      5 PM      8 PM      11 PM     2 AM
Sky (%).........16        13        7         5
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Chc of thdr (%).0         0         0         0
Temp............59        46        41        39
RH..............37        51        52        56
20 FT wind......N 1G5     SE 1      S 2G5     S 2G5
Transport wind..NE 5      E 5       SE 5      SE 5
Vrate kt-ft/1K..9         7         6         8
Ventrate Cat....MRGL      POOR      POOR      POOR

.SATURDAY...

Sky/Weather.........Sunny.
Temperature.........Max 69.
RH..................Min 32%.
20-Foot Winds.......Upslope 3-7 mph.
Chance of thunder...0%.
Transport Winds.....Light winds.
Ventilation.........Poor in the morning then fair.

TIME (PDT)      5 AM      8 AM      11 AM     2 PM
Sky (%).........8         5         2         2
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Chc of thdr (%).0         0         0         0
Temp............38        40        61        68
RH..............56        53        37        32
20 FT wind......S 2G5     SE 2G5    E 2G5     N 2G5
Transport wind..SE 5      SE 5      S 5       SW 5
Vrate kt-ft/1K..8         7         9         21
Ventrate Cat....POOR      POOR      MRGL      FAIR

$$
Forecaster...Deutschendorf
Requested by...Heald
Type of request...PRESCRIBED
.TAG 2523409.2/REV
.DELDT 10/17/25
.FormatterVersion 2.0.0
.EMAIL kenneth.heald@usda.gov