594
FNUS75 KREV 040421
FWSREV

Spot Forecast for Turtle rock Park...Alpine County Fuels Mitigation Program
National Weather Service Reno NV
921 PM PDT Thu Apr 3 2025

Forecast is based on ignition time of 0800 PDT on April 04.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Mostly dry with light winds and a gradual warming trend each day
  through Sunday.

* Light winds will result in limited mixing this morning, with a slight
  improvement this afternoon as easterly transport winds.

* Brush-by front brings mountain rain and higher snow showers along with
  areawide breezy winds on Monday.

.FRIDAY...

Sky/Weather.........Mostly cloudy then becoming partly cloudy.
Temperature.........26-30 at ignition...Max 46-49.
RH..................70-75% at ignition...Min 28-31%.
20-Foot Winds.......Winds northeast at 7 mph at
                    ignition...otherwise Northeast winds 7-10 mph
                    with gusts to 15 mph in the afternoon.
Chc Wetting Rain....5%.
Mixing Height.......4400-5400 ft agl.
Transport Winds.....East 10-15 mph.
Ventilation.........Fair to good.

TIME (PDT)      8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........60     60     34     8      8
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............10     10     0      0      0
Temp............27     33     40     45     45
RH..............74     55     39     32     29
20 ft wind......NE 7   NE 7   NE 9   N 7    N 7
20 ft wind gust.10     10     15     10     10
Mx ht msl (kft).3.3    3.3    5.0    5.4    5.4
Transport wind..E 10   E 10   E 15   E 15   E 15
Vrate kt-ft/1K..33     33     55     60     60
Ventrate Cat....POOR   POOR   FAIR   FAIR   FAIR

.FRIDAY NIGHT...

Sky/Weather.........Clear.
Temperature.........Min 26-30.
RH..................Max 54-59%.
20-Foot Winds.......Downslope 2-6 mph.
Chc Wetting Rain....0%.
Mixing Height.......1300-1800 ft agl.
Transport Winds.....Northeast around 10 mph.
Ventilation.........Good to marginal.

TIME (PDT)      5 PM   7 PM   9 PM   11 PM  1 AM   3 AM
Sky (%).........8      8      8      12     12     10
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............46     41     34     32     30     28
RH..............29     36     44     48     53     57
20 ft wind......N 6    N 6    NE 5   E 5    E 5    SE 3
20 ft wind gust.10     10                          5
Mx ht msl (kft).5.2    5.2    1.2    1.2    1.2    1.2
Transport wind..NE 10  NE 10  NE 10  E 10   E 10   E 10
Vrate kt-ft/1K..52     52     9      9      9      9
Ventrate Cat....FAIR   FAIR   POOR   POOR   POOR   POOR

.SATURDAY...

Sky/Weather.........Partly cloudy.
Temperature.........Max 54-59.
RH..................Min 21-25%.
20-Foot Winds.......Upslope 3-7 mph.
Chc Wetting Rain....0%.
Mixing Height.......3100-4100 ft agl.
Transport Winds.....Light winds becoming east around 10 mph in the
                    afternoon.
Ventilation.........Poor to fair.

TIME (PDT)      5 AM   7 AM   9 AM   11 AM  1 PM   3 PM
Sky (%).........25     25     35     33     33     28
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............27     29     35     45     52     55
RH..............58     56     45     30     24     22
20 ft wind......SE 3   SE 3   E 2    E 5    E 5    E 3
20 ft wind gust.5      5      5                    5
Mx ht msl (kft).1.2    1.2    1.6    3.2    3.2    4.2
Transport wind..E 5    E 5    E 5    E 10   E 10   E 10
Vrate kt-ft/1K..8      8      10     26     26     29
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR

$$
Forecaster...Young
Requested by...Jim lamb
Type of request...PRESCRIBED
.TAG 2508832.0/REV
.DELDT 04/04/25
.FormatterVersion 2.0.0
.EMAIL jlamb@alpinecountyca.gov