369
FNUS75 KREV 221559
FWSREV

Spot Forecast for Signal Rx...USFS
National Weather Service Reno NV
859 AM PDT Tue Apr 22 2025

Forecast is based on ignition time of 1000 PDT on April 22.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Dry conditions prevail through Thursday with above average
  temperatures.

* West breezes and rising mixing heights will allow for
  improved ventilation this afternoon, with slightly reduced
  ventilation due to lighter winds Wednesday.

* Cooler temperatures with increasing humidity and chances for
  rain and snow showers return Friday afternoon through Saturday.

.TODAY...

Sky/Weather.........Sunny.
Temperature.........49 at ignition...Max 65.
RH..................37% at ignition...Min 20%.
20-Foot Winds.......Upslope 2-5 mph becoming west 7-10 mph with
                    gusts near 15 mph after 12 Noon.
Chc Wetting Rain....0%.
Chance of thunder...0%.
Mixing Height.......7100-8100 ft agl.
Transport Winds.....West 10-15 mph increasing to around 20 mph late
                    in the afternoon.
Ventilation.........Marginal in the morning then excellent.

TIME (PDT)      10 AM     1 PM      4 PM
Sky (%).........3         4         14
Weather cov.....
Weather type....NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0
Chc of thdr (%).0         0         0
Temp............49        61        62
RH..............37        22        20
20 FT wind......S 2G5     SW 7G10   W 10G15
Mx ht msl (kft).3.7       7.2       8.2
Transport wind..SW 10     W 15      W 20
Vrate kt-ft/1K..33        100       132
Ventrate Cat....POOR      VYGD      VYGD

.TONIGHT...

Sky/Weather.........Clear then becoming partly cloudy.
Temperature.........Min 33.
RH..................Max 77%.
20-Foot Winds.......West winds 7-10 mph early in the evening
                    then becoming light downslope 1-4 mph.
Chc Wetting Rain....0%.
Chance of thunder...0%.
Mixing Height.......7200-7400 ft agl decreasing to 600-1100 ft agl
                    in the evening.
Transport Winds.....West 10-15 mph shifting to the north overnight.
Ventilation.........Very good in the evening decreasing to poor.

TIME (PDT)      5 PM      8 PM      11 PM     2 AM
Sky (%).........19        34        28        40
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of thdr (%).0         0         0         0
Temp............61        48        41        37
RH..............20        37        58        70
20 FT wind......W 10G15   W 6G10    NW 3G5    NW 3G5
Mx ht msl (kft).7.3       0.5       0.7       1.1
Transport wind..W 15      W 10      N 10      N 10
Vrate kt-ft/1K..109       4         6         8
Ventrate Cat....VYGD      POOR      POOR      POOR

.WEDNESDAY...

Sky/Weather.........Sunny then becoming partly cloudy. Slight
                    chance of showers and thunderstorms in the
                    afternoon.
Temperature.........Max 61.
RH..................Min 29%.
20-Foot Winds.......Upslope 3-7 mph. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Chc Wetting Rain....5%.
Chance of thunder...20%.
Mixing Height.......6300-7300 ft agl.
Transport Winds.....Light winds becoming southwest around 10 mph
                    late in the afternoon.
Ventilation.........Poor to good.

TIME (PDT)      5 AM      8 AM      11 AM     2 PM
Sky (%).........21        24        23        35
Weather cov.....                    S CHC     S CHC
Weather type....NONE      NONE      RNSHWR    RNSHWR
Tstm cov........                    S CHC     S CHC
CWR.............0         0         10        10
Chc of thdr (%).0         0         10        10
Temp............33        37        52        59
RH..............77        68        37        27
20 FT wind......N 1       NE 1      E 2G5     NW 2G5
Mx ht msl (kft).0.9       2.4       5.5       7.5
Transport wind..E 5       SE 5      S 5       SW 10
Vrate kt-ft/1K..4         10        33        53
Ventrate Cat....POOR      POOR      POOR      FAIR

$$
Forecaster...Deutschendorf/Young/Giralte
Requested by...Brett Matthews
Type of request...PRESCRIBED
.TAG 2511039.2/REV
.DELDT 04/22/25
.FormatterVersion 2.0.0
.EMAIL brett.matthews@usda.gov,michael.deblois@usda.gov,allen.schultze@usda.gov