051
FNUS75 KREV 011947
FWSREV

Spot Forecast for South Constantia...BLM
National Weather Service Reno NV
1247 PM PDT Mon Sep 1 2025

Forecast is based on forecast start time of 0700 PDT on September 02.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Shower and storm activity expected Tuesday, however uncertainty
  with coverage. Your site lies near the boundary between more
  scattered activity to the south and isolated activity to the
  north.

* If the activity is further south than expected, there is less
  potential for wetting rain (CWR reduces to 0-5%) and a dry
  lightning risk. If its further north wetting rain is a better
  chance (CWR increases to 20%).

* Isolated shower and storm activity possible again Wednesday.

.TUESDAY...

Sky/Weather.........Cloud increasing. Patchy smoke in the morning
and afternoon. Isolated showers and possibly dry
thunderstorms in the afternoon.
Temperature.........59 at forecast start...Max 88.
RH..................49% at forecast start...Min 21%.
20-Foot Winds.......Winds southeast at 2 mph at forecast
                    start...otherwise Upslope 3-7 mph becoming
                    southwest 7-9 mph late in the afternoon. Gusty
                    and erratic winds expected near thunderstorms
                    late in the afternoon.
Chc Wetting Rain....0% increasing to 10% in the afternoon.
Chance of thunder...0% increasing to 15% in the afternoon.
Mixing Height.......9300-10300 ft agl.
Transport Winds.....Light winds becoming south around 10 mph in the
                    afternoon.
Ventilation.........Poor to very good.

TIME (PDT)      7 AM      10 AM     1 PM      4 PM
Sky (%).........35        41        51        78
Weather cov.....                              CHANCE
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........                              S CHC
CWR.............0         0         10        10
Chc of thdr (%).0         0         10        20
Temp............59        79        87        83
RH..............49        28        21        26
20 FT wind......SE 2G5    SE 3G5    S 6G15    SW 9G15
Eye level wind..SE 1G3    SE 2G3    S 4G9     SW 5G9
Mx ht msl (kft).1.3       2.9       9.0       11
Transport wind..SE 5      SE 5      S 10      S 10
Vrate kt-ft/1K..5         15        81        95
Ventrate Cat....POOR      MRGL      VYGD      VYGD

.TUESDAY NIGHT...

Sky/Weather.........Isolated showers may persist later into the
evening. Thunderstorm risk in the early part
of the evening, then easing.
Temperature.........Min 55.
RH..................Max 68%.
20-Foot Winds.......South winds 7-10 mph early in the evening
                    becoming light. Gusty and erratic winds
                    expected near thunderstorms in the evening.
Chc Wetting Rain....5-10%.
Chance of thunder...20% decreasing to 0-10% after around 9pm.
Mixing Height.......1400-1900 ft agl.
Transport Winds.....South 10-15 mph in the evening and overnight
                    becoming light.
Ventilation.........Good to poor.

TIME (PDT)      5 PM      8 PM      11 PM     2 AM
Sky (%).........77        56        41        34
Weather cov.....CHANCE    CHANCE    S CHC     S CHC
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........S CHC     S CHC
CWR.............10        10        10        10
Chc of thdr (%).20        20        10        10
Temp............79        72        66        61
RH..............30        42        54        62
20 FT wind......S 10G15   S 6G10    S 3G5     S 2G5
Eye level wind..S 6G9     S 4G6     S 2G3     S 1G3
Mx ht msl (kft).4.6       1.4       1.3       1.3
Transport wind..S 15      S 10      S 10      S 5
Vrate kt-ft/1K..50        11        9         6
Ventrate Cat....GOOD      MRGL      MRGL      POOR

.WEDNESDAY...

Sky/Weather.........Sunny then becoming partly cloudy. Slight
                    chance of showers and thunderstorms in the
                    afternoon.
Temperature.........Max 87.
RH..................Min 23%.
20-Foot Winds.......Upslope 3-7 mph. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Chc Wetting Rain....5%.
Chance of thunder...0% increasing to 20% in the afternoon.
Mixing Height.......10600-11600 ft agl.
Transport Winds.....Light winds becoming south around 10 mph in the
                    afternoon.
Ventilation.........Poor to good increasing to excellent late in
                    the afternoon.

TIME (PDT)      5 AM      8 AM      11 AM     2 PM
Sky (%).........22        16        25        27
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         20        20
Temp............56        62        79        86
RH..............66        63        32        23
20 FT wind......S 3G5     S 3G5     SE 3G10   E 5G10
Eye level wind..S 2G3     S 2G3     SE 2G6    E 3G6
Mx ht msl (kft).1.3       1.2       6.5       12
Transport wind..SE 5      SE 5      SE 10     S 10
Vrate kt-ft/1K..6         5         46        111
Ventrate Cat....POOR      POOR      GOOD      EXNT

$$
Forecaster...Richards
Requested by...David Nelson
Type of request...WILDFIRE
.TAG 2520971.1/REV
.DELDT 09/01/25
.FormatterVersion 2.0.0
.EMAIL mpeak@blm.gov,nvsfc@firenet.gov.,david_nelson@firenet.gov