750
FNUS75 KREV 131809
FWSREV

Spot Forecast for Big...Sierra Front Dispatch
National Weather Service Reno NV
1109 AM PDT Sun Jul 13 2025

Forecast is based on forecast start time of 1200 PDT on July 13.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

...HEAT ADVISORY IN EFFECT UNTIL 11 AM PDT WEDNESDAY...

.DISCUSSION...

* Hot temperatures continue through Tuesday with terrain
  driven winds through the morning hours and northerly winds in
  the afternoon.

* Dry weather with poor overnight recoveries continues through
  Tuesday. However, there is a 5-10% chance of thunderstorms each
  afternoon.

* Temperatures start a slight cool down by mid-week, at the same
  time enhanced afternoon winds return.

.REST OF TODAY...

Sky/Weather.........Sunny.
Temperature.........Max 102-105.
RH..................Min 6-9%.
20-Foot Winds.......Winds north northwest at 4-7 mph.
                    Then northwest winds 7-10 mph
                    with gusts up to 20 mph after 1400.
Chc Wetting Rain....0%.
Chance of thunder...10% this afternoon.
Mixing Height.......15100-16100 ft agl.
Transport Winds.....Southeast around 10 mph.
Ventilation.........Excellent.

TIME (PDT)      NOON      3 PM
Sky (%).........1         6
Weather cov.....
Weather type....NONE      NONE
Tstm cov........
CWR.............0         0
Chc of thdr (%).10        10
Temp............96        103
RH..............13        7
20 FT wind......N 7G15    N 10G15
Eye level wind..N 4G9     N 6G9
Mx ht msl (kft).14        16
Transport wind..SE 10     SE 10
Vrate kt-ft/1K..123       147
Ventrate Cat....EXNT      EXNT

.TONIGHT...

Sky/Weather.........Clear.
Temperature.........Min 73-76.
RH..................Max 22-26%.
20-Foot Winds.......North winds 7-10 mph shifting to the west
                    around 7 mph after 3 am.
Chc Wetting Rain....0%.
Chance of thunder...5-10% through 2000.
Mixing Height.......14900-15100 ft agl decreasing to 1400-1600 ft
                    agl in the late evening and overnight.
Transport Winds.....South around 10 mph shifting to the west in the
                    late evening and overnight.
Ventilation.........Excellent decreasing to marginal in the late
                    evening and overnight.

TIME (PDT)      5 PM      8 PM      11 PM     2 AM
Sky (%).........24        24        5         4
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of thdr (%).10        10        0         0
Temp............103       98        86        79
RH..............6         10        18        23
20 FT wind......N 10G15   NW 8G15   NW 8G10   W 7G10
Eye level wind..N 6G9     NW 5G9    NW 5G6    W 4G6
Mx ht msl (kft).15        1.5       1.5       1.5
Transport wind..S 10      W 10      W 10      W 10
Vrate kt-ft/1K..150       15        11        11
Ventrate Cat....EXNT      MRGL      MRGL      MRGL

$$
Forecaster...Lindaman
Requested by...Ryan Gaines
Type of request...WILDFIRE
.TAG 2517895.1/REV
.DELDT 07/13/25
.FormatterVersion 2.0.0
.EMAIL rgaines@blm.gov