099
FNUS75 KREV 281731
FWSREV

Spot Forecast for BONITA...Plumas NF
National Weather Service Reno NV
1031 AM PDT Thu Aug 28 2025

Forecast is based on forecast start time of 1200 PDT on August 28.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Warm and dry conditions. Some uncertainty with moisture today,
  you may see higher RH% values than forecast due to left over
  moisture.

* Light winds. Larger scale flow is broadly southwesterly but
  expect local terrain driven winds.

* Conditions ideal for plume development, with a well mixed
  atmosphere and light winds.

.REST OF TODAY...

Sky/Weather.........Sunny.
Temperature.........75 at forecast start...Max 80.
RH..................20% at forecast start...Min 16%.
20-Foot Winds.......Winds southwest at 5 mph at forecast
                    start...otherwise Upslope 3-7 mph.
Chc Wetting Rain....0%.
Chance of thunder...5%.
Mixing Height.......10100-11100 ft agl.
Transport Winds.....Light winds becoming west around 10 mph late in
                    the afternoon.
Ventilation.........Good to very good.

TIME (PDT)      NOON      3 PM
Sky (%).........1         4
Weather cov.....
Weather type....NONE      NONE
Tstm cov........
CWR.............0         0
Chc of thdr (%).0         10
Temp............75        79
RH..............20        16
20 FT wind......SW 5G10   W 6G10
Eye level wind..SW 3G6    W 4G6
Mx ht msl (kft).9.5       11
Transport wind..SW 5      W 10
Vrate kt-ft/1K..57        78
Ventrate Cat....GOOD      VYGD

.TONIGHT...

Sky/Weather.........Clear.
Temperature.........Min 48.
RH..................Max 48%.
20-Foot Winds.......Downslope 2-6 mph.
Chc Wetting Rain....0%.
Chance of thunder...5%.
Mixing Height.......1700-2700 ft agl decreasing to 600 ft agl
                    overnight.
Transport Winds.....West around 10 mph in the evening becoming
                    light.
Ventilation.........Very good to poor.

TIME (PDT)      5 PM      8 PM      11 PM     2 AM
Sky (%).........7         6         1         0
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of thdr (%).10        0         0         0
Temp............76        65        56        51
RH..............20        32        43        47
20 FT wind......W 6G10    W 2G5     NW 2G5    N 2G5
Eye level wind..W 4G6     W 1G3     NW 1G3    N 1G3
Mx ht msl (kft).9.5       0.7       0.5       0.5
Transport wind..W 10      W 10      W 5       NW 5
Vrate kt-ft/1K..85        5         3         2
Ventrate Cat....VYGD      POOR      POOR      POOR

.FRIDAY...

Sky/Weather.........Sunny then becoming partly cloudy.
Temperature.........Max 80.
RH..................Min 20%.
20-Foot Winds.......Upslope 3-7 mph.
Chc Wetting Rain....0%.
Chance of thunder...5%.
Mixing Height.......600 ft agl early in the morning then 9000-10000
                    ft agl in the late morning and afternoon.
Transport Winds.....Light winds.
Ventilation.........Poor to good.

TIME (PDT)      5 AM      8 AM      11 AM     2 PM
Sky (%).........3         0         3         25
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of thdr (%).0         0         10        10
Temp............49        52        71        78
RH..............48        47        25        20
20 FT wind......E 2G5     E 3G5     SW 3G10   W 6G10
Eye level wind..E 1G3     E 2G3     SW 2G6    W 4G6
Mx ht msl (kft).0.5       1.4       5.7       11
Transport wind..NE 5      E 5       S 5       SW 5
Vrate kt-ft/1K..2         6         29        64
Ventrate Cat....POOR      POOR      FAIR      GOOD

$$
Forecaster...Richards
Requested by...Brian Cain
Type of request...WILDFIRE
.TAG 2520661.3/REV
.DELDT 08/28/25
.FormatterVersion 2.0.0
.EMAIL brian.cain@usda.gov,barbara.bussey@usda.gov,cody.lavley@usda.gov,capnfc@firenet.gov,joseph.mcginn@usda.gov