462
FNUS75 KREV 241318
FWSREV

Spot Forecast for Pioneer Rx...USFS
National Weather Service Reno NV
618 AM PDT Sat May 24 2025

Forecast is based on ignition time of 0701 PDT on May 24.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Ignition conditions Saturday will feature light drainage winds
  and modest relative humidity recoveries, with warming and
  drying into the afternoon.

* Afternoon winds become west to northwest 5-9 mph with
  a 5% chance for thunderstorms primarily south of the burn.

* Poor relative humidity recovery is expected Saturday night,
  with light downslope winds. Breezier southwest winds Sunday (6-10
  mph with gusts to 15 mph).

.TODAY...

Sky/Weather.........Sunny.
Temperature.........45-49 at ignition...Max 72-76.
RH..................70-74% at ignition...Min 20-24%.
20-Foot Winds.......North 1-3 mph at ignition shifting to west-
                    northwest 5-9 mph by early afternoon.
Chc Wetting Rain....1%.
Chance of thunder...5% in the afternoon.
Mixing Height.......6600-7600 ft agl.
Transport Winds.....Light early becoming northwest 10-14 mph in
                    the afternoon.
Ventilation.........Poor early improving to good by mid-afternoon.

TIME (PDT)      7 AM   9 AM   11 AM  1 PM   3 PM
Sky (%).........6      5      7      7      11
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0
Chc of thdr (%).0      0      10     10     10
Temp............39     52     64     70     71
RH..............74     45     28     22     20
20 ft wind......N 1    N 3    N 4    NW 6   NW 9
20 ft wind gust.       5      6      8      10
Mx ht msl (kft).1.2    3.8    6.9    6.9    7.7
Transport wind..NE 5   NE 8   NE 10  NE 12  N 14
Vrate kt-ft/1K..6      27     41     41     61
Ventrate Cat....POOR   FAIR   GOOD   GOOD   GOOD

.TONIGHT...

Sky/Weather.........Clear.
Temperature.........Min 38-42.
RH..................Max 73-77%.
20-Foot Winds.......Downslope south to southwest 2-5 mph overnight.
Chc Wetting Rain....1%.
Chance of thunder...5% early evening.
Mixing Height.......1300-1800 ft agl.
Transport Winds.....Northwest around 10 mph in the evening becoming
                    light.
Ventilation.........Good in the early evening becoming poor
                    overnight.

TIME (PDT)      5 PM   7 PM   9 PM   11 PM  1 AM   3 AM
Sky (%).........12     12     15     6      6      5
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Chc of thdr (%).10     10     0      0      0      0
Temp............71     66     54     49     46     42
RH..............26     39     60     71     75     77
20 ft wind......NW 5   NW 5   W 2    SW 2   SW 2   SW 1
20 ft wind gust.              5
Mx ht msl (kft).6.2    6.2    1.5    1.2    1.2    1.2
Transport wind..NW 10  NW 10  W 10   W 5    W 5    W 5
Vrate kt-ft/1K..56     56     12     7      7      7
Ventrate Cat....GOOD   GOOD   MRGL   POOR   POOR   POOR

.SUNDAY...

Sky/Weather.........Sunny.
Temperature.........Max 73-77.
RH..................Min 22-26%.
20-Foot Winds.......West to southwest 6-10 mph with gusts to 15
                    mph by afternoon.
Chc Wetting Rain....1%.
Chance of thunder...5% in the afternoon.
Mixing Height.......6900-7900 ft agl.
Transport Winds.....Light winds becoming southwest around 10 mph
                    late in the afternoon.
Ventilation.........Poor early becoming good in the afternoon.

TIME (PDT)      5 AM   7 AM   9 AM   11 AM  1 PM   3 PM
Sky (%).........7      7      9      6      6      15
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Chc of thdr (%).0      0      0      10     10     10
Temp............40     45     57     70     74     73
RH..............74     64     45     26     23     24
20 ft wind......N 0    N 0    N 0    W 2    W 5    W 8
20 ft wind gust.5      5             5      8      15
Mx ht msl (kft).1.2    1.2    1.5    5.8    5.8    8.2
Transport wind..W 5    W 5    W 5    SW 5   SW 5   SW 10
Vrate kt-ft/1K..6      6      6      23     23     57
Ventrate Cat....POOR   POOR   POOR   FAIR   FAIR   GOOD

$$
Forecaster...Johnston/Chyba
Requested by...David DeLeon
Type of request...PRESCRIBED
.TAG 2514340.3/REV
.DELDT 05/24/25
.FormatterVersion 2.0.0
.EMAIL david.deleon@usda.gov