412
FNUS75 KREV 300806
FWSREV
SPOT FORECAST FOR EAST ZONE ROADS RX...USFS TAHOE
NATIONAL WEATHER SERVICE RENO NV
106 AM PDT THU OCT 30 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON OCTOBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL
WEATHER SERVICE IN RENO.
DISCUSSION
* WARM TEMPERATURES, DRY CONDITIONS, GENERALLY LIGHT WINDS CONTINUE
THROUGH THE WEEKEND.
* GENERALLY POOR MIXING IN THE MORNING WITH MARGINAL TO GOOD
MIXING EXPECTED IN THE AFTERNOONS THROUGH THROUGH SATURDAY.
* WIND GUSTS HIGHER THAN 20 MPH AND 20-50% CHANCE OF RAIN
RETURN BY MID-WEEK NEXT WEEK.
THURSDAY
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY THEN BECOMING
MOSTLY CLOUDY.
TEMPERATURE.........29-34 AT IGNITION...MAX 67-72.
RH..................80-85% AT IGNITION...MIN 23-28%.
20-FOOT WINDS.......UPSLOPE WINDS 2-7 MPH.
CHC WETTING RAIN....0%.
CHANCE OF THUNDER...0%.
MIXING HEIGHT.......3800-4800 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST AROUND 15 MPH IN
THE AFTERNOON.
VENTILATION.........POOR TO GOOD.
TIME (PDT) 7 AM 10 AM 1 PM 4 PM
SKY (%).........8 23 39 50
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............31 46 64 69
RH..............80 63 32 25
20 FT WIND......W 1G5 NW 2G5 S 2G5 SW 3G10
MX HT MSL (KFT).1.0 1.0 4.3 4.9
TRANSPORT WIND..S 5 S 5 SW 15 SW 15
VRATE KT-FT/1K..4 4 47 68
VENTRATE CAT....POOR POOR GOOD GOOD
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING CLEAR.
TEMPERATURE.........MIN 27-32.
RH..................MAX 74-79%.
20-FOOT WINDS.......DOWNSLOPE 1-6 MPH.
CHC WETTING RAIN....0%.
CHANCE OF THUNDER...0%.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH EARLY IN THE EVENING
BECOMING LIGHT.
VENTILATION.........MARGINAL DECREASING TO POOR OVERNIGHT.
TIME (PDT) 5 PM 8 PM 11 PM 2 AM
SKY (%).........68 66 46 7
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............62 50 44 36
RH..............34 54 62 73
20 FT WIND......SW 3G10 SW 1 SW 1 SW 1
MX HT MSL (KFT).2.2 1.0 1.0 0.9
TRANSPORT WIND..SW 10 SW 5 SW 5 SW 5
VRATE KT-FT/1K..20 5 5 6
VENTRATE CAT....MRGL POOR POOR POOR
FRIDAY
SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 67-72.
RH..................MIN 20-25%.
20-FOOT WINDS.......UPSLOPE 2-7 MPH.
CHC WETTING RAIN....0%.
CHANCE OF THUNDER...0%.
MIXING HEIGHT.......3100-4100 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS.
VENTILATION.........POOR INCREASING TO MARGINAL IN THE AFTERNOON.
TIME (PDT) 5 AM 8 AM 11 AM 2 PM
SKY (%).........8 9 10 16
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............30 29 54 65
RH..............74 77 44 25
20 FT WIND......SW 1 S 1 SE 1G5 E 1G5
MX HT MSL (KFT).0.9 0.9 2.1 4.3
TRANSPORT WIND..SW 5 S 5 SE 5 SW 5
VRATE KT-FT/1K..4 3 6 17
VENTRATE CAT....POOR POOR POOR MRGL
FORECASTER...CRESPO/RICHARDS
REQUESTED BY...KEVIN MECHAM
TYPE OF REQUEST...PRESCRIBED
.TAG 2524469.5/REV
.DELDT 10/30/25
.FORMATTERVERSION 2.0.0
.EMAIL KEVIN.MECHAM@USDA.GOV,GREGORY.LOWDERMILK@USDA.GOV
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