632
FNUS75 KREV 120402
FWSREV

Spot Forecast for Alpine County Fuels Mitigation Program...Alpine County
National Weather Service Reno NV
902 PM PDT Fri Jul 11 2025

Forecast is based on ignition time of 0700 PDT on July 12.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Hot and dry conditions will persist through early next week, with
  afternoon highs in the 90s and Moderate to Major HeatRisk,
  increasing chances of heat-related illness for outdoor workers.

* Light winds through Monday will provide little cooling; stronger
  afternoon breezes return midweek.

* Low thunderstorm and shower chances (5-10%) exist each afternoon
  with the main threats being lightning and gusty outflow winds.

.TODAY...

Sky/Weather.........Sunny.
Temperature.........61 at ignition...Max 91-94.
RH..................47% at ignition...Min 13-16%.
20-Foot Winds.......Winds north 2-5 mph in the morning becoming
                    west 7-10 mph with gusts to 15 mph in the
                    afternoon.
Chc Wetting Rain....1%.
Chance of thunder...10%.
Mixing Height.......11500-12500 ft agl.
Transport Winds.....Light winds becoming east around 10 mph in the
                    late morning and early afternoon, then shifting
                    to the southwest late in the afternoon.
Ventilation.........Poor in the morning becoming very good in the
                    afternoon.

TIME (PDT)      7 AM   9 AM   11 AM  1 PM   3 PM
Sky (%).........1      1      2      2      24
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE
Tstm cov........                            Iso
CWR.............0      0      0      0      0
Chc of thdr (%).0      0      10     10     10
Temp............61     72     84     90     91
RH..............47     28     19     15     16
20 ft wind......NW 1   N 2    N 6    N 6    W 8
20 ft wind gust.5      5      15     15     15
Mx ht msl (kft).1.5    5.8    12     12     13
Transport wind..S 5    E 10   E 10   E 10   SW 10
Vrate kt-ft/1K..6      52     93     93     89
Ventrate Cat....POOR   GOOD   VYGD   VYGD   VYGD

.TONIGHT...

Sky/Weather.........Clear.
Temperature.........Min 60-63.
RH..................Max 47-50%.
20-Foot Winds.......West winds 7-10 mph with gusts to 15 mph
                    early in the evening becoming light
                    overnight.
Chc Wetting Rain....1%.
Chance of thunder...5%.
Mixing Height.......1600-2600 ft agl.
Transport Winds.....West around 10 mph in the evening becoming
                    light.
Ventilation.........Excellent in the evening becoming poor
                    overnight.

TIME (PDT)      5 PM   7 PM   9 PM   11 PM  1 AM   3 AM
Sky (%).........15     15     3      2      2      2
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........Iso    Iso
CWR.............0      0      0      0      0      0
Chc of thdr (%).10     10     0      0      0      0
Temp............90     84     76     71     66     63
RH..............19     24     33     39     43     47
20 ft wind......W 8    W 8    W 6    SW 3   SW 3   SW 2
20 ft wind gust.15     15     15     10     10     5
Mx ht msl (kft).11     11     2.1    1.5    1.5    1.5
Transport wind..W 10   W 10   W 10   SW 5   SW 5   SW 5
Vrate kt-ft/1K..103    103    17     8      8      9
Ventrate Cat....EXNT   EXNT   MRGL   POOR   POOR   MRGL

$$
Forecaster...Johnston
Requested by...Jim lamb
Type of request...PRESCRIBED
.TAG 2513867.14/REV
.DELDT 07/12/25
.FormatterVersion 2.0.0
.EMAIL jlamb@alpinecountyca.gov