California/Nevada SNOTEL Precipitation Update Report

California/Nevada SNOTEL Precipitation Update Report

Based on Mountain Data from NRCS SNOTEL Sites

**Provisional data, subject to revision**

Data based on the first reading of the day (typically 00:00) for Friday, May 09, 2025

Basin Site Name	Elev (ft)	Month-to-Date Precipitation			Water Year-to-Date Precipitation
Basin Site Name	Elev (ft)	Current (in)	Median (in)	Pct of Median	Current (in)	Median (in)	Pct of Median
LAKE TAHOE
Mt Rose Ski Area	8810	0.4	0.4	100	47.6	45.9	104
Heavenly Valley	8540	0.9	0.4	225	29.9	27.8	108
Carson Pass	8360	0.1	0.4₍₁₆₎	25	27.6	35.2₍₁₆₎	78
Palisades Tahoe	8010	0.3	0.9	33	48.2	55.6	87
Marlette Lake	7860	0.2	0.2	100	28.0	27.0	104
Hagans Meadow	7740	0.2	0.4	50	25.6	26.3	97
Echo Peak	7650	0.8	0.6	133	48.0	50.6	95
Rubicon #2	7570	0.2	0.4	50	32.9	34.6	95
Tahoe City Cross	6760	0.1	0.2	50	33.4	31.2	107
Ward Creek #3	6750	0.1	0.5	20	60.7	61.6	99
Fallen Leaf	6250	0.3	0.2	150	27.3	27.6	99
Basin Index (%)		78			97
TRUCKEE RIVER
Mt Rose Ski Area	8810	0.4	0.4	100	47.6	45.9	104
Independence Lake	8340	0.2	0.3	67	46.0	41.8	110
Big Meadow	8240	0.5	0.3	167	25.7	25.8	100
Palisades Tahoe	8010	0.3	0.9	33	48.2	55.6	87
Marlette Lake	7860	0.2	0.2	100	28.0	27.0	104
Independence Camp	6970	0.1	0.4	25	20.9	25.3	83
Css Lab	6880	0.3	0.7	43	56.8	60.7	94
Tahoe City Cross	6760	0.1	0.2	50	33.4	31.2	107
Ward Creek #3	6750	0.1	0.5	20	60.7	61.6	99
Truckee #2	6500	0.1	0.3	33	29.1	29.5	99
Little Valley	6500	0.2	N/A	*	24.2	N/A	*
Independence Creek	6440	0.1	0.1	100	21.6	26.4	82
Basin Index (%)		56			97
CARSON RIVER
Ebbetts Pass	8660	1.0	0.6	167	43.1	45.4	95
Lost Lakes	8640	0.2	N/A	*	46.2	N/A	*
Horse Meadow	8580	0.2	0.1₍₁₇₎	200	21.8	20.0₍₁₇₎	109
Heavenly Valley	8540	0.9	0.4	225	29.9	27.8	108
Carson Pass	8360	0.1	0.4₍₁₆₎	25	27.6	35.2₍₁₆₎	78
Monitor Pass	8320	0.7	0.2	350	16.8	18.4	91
Burnside Lake	8180	0.3	0.3₍₁₇₎	100	31.6	34.7₍₁₇₎	91
Blue Lakes	8060	0.4	0.6	67	29.9	37.2	80
Forestdale Creek	8050	0.1	0.2₍₁₇₎	50	35.1	40.8₍₁₇₎	86
Marlette Lake	7860	0.2	0.2	100	28.0	27.0	104
Hagans Meadow	7740	0.2	0.4	50	25.6	26.3	97
Poison Flat	7730	0.7	0.3	233	24.6	27.8	88
Spratt Creek	6060	0.6	0.2	300	20.2	25.8	78
Basin Index (%)		138			91
WALKER RIVER
Leavitt Lake	9600	0.5	0.3	167	42.7	47.8	89
Virginia Lakes Ridge	9400	0.4	0.2	200	21.4	21.6	99
Summit Meadow	9360	0.5	0.1₍₁₇₎	500	19.7	19.4₍₁₇₎	102
Lobdell Lake	9260	0.3	0.3	100	19.3	19.2	101
Sonora Pass	8770	0.4	0.2	200	28.4	30.6	93
Monitor Pass	8320	0.7	0.2	350	16.8	18.4	91
Willow Flat CA	8220	0.3	N/A	*	20.4	N/A	*
Leavitt Meadows	7200	0.2	0.2	100	24.8	27.6	90
Basin Index (%)		200			94
NORTHERN GREAT BASIN
Granite Peak	8500	0.3	0.4	75	25.7	23.8	108
Summit Lk	7590	0.7	N/A	*	19.4	N/A	*
Dismal Swamp	7370	0.3	0.6	50	48.4	39.6	122
Cedar Pass	7060	0.5	0.4	125	33.9	25.8	131
Buckskin Lower	6920	-0.2	0.2	-100	20.5	17.3	118
Lamance Creek	6390	0.3	0.4	75	22.6	20.8	109
Disaster Peak	6260	0.1	0.2	50	16.8	17.2	98
Sheldon	5860	0.0	0.2	0	9.6	6.4	150
Basin Index (%)		54			118
NEVADA
UPPER HUMBOLDT RIVER
Lamoille Upper	8990	0.0	N/A	*	30.2	N/A	*
Corral Canyon	8440	0.8	0.6	133	28.1	23.0	122
Jacks Peak	8440	0.2	0.4	50	25.1	27.0	93
Green Mountain	8180	1.0	0.8	125	26.7	25.0	107
Lamoille #3	8030	0.4	0.8	50	21.7	23.4	93
Bear Creek	8090	0.8	0.8	100	23.5	26.0	90
Dorsey Basin	7900	0.0	0.6	0	24.5	24.7	99
Pole Canyon	7760	0.1	N/A	*	25.8	N/A	*
Stag Mountain	7640	0.1	N/A	*	8.6	N/A	*
Jakes Creek	7380	-M	N/A	*	-M	N/A	*
Jack Creek Upper	7380	0.0	0.4	0	20.5	21.8	94
Seventysix Creek	7360	0.2	0.4	50	16.4	15.7	104
Draw Creek	7300	0.4	0.3	133	16.7	16.1	104
Tent Mtn Lower	7110	0.3	N/A	*	15.4	N/A	*
Fry Canyon	6790	0.1	N/A	*	18.1	N/A	*
Dry Creek	6560	-0.1	N/A	*	17.9	N/A	*
Taylor Canyon	6320	0.2	0.2	100	8.4	9.4	89
Basin Index (%)		75			100
LOWER HUMBOLDT RIVER
Big Creek Sum	8710	1.2	0.5	240	17.4	18.0	97
Granite Peak	8500	0.3	0.4	75	25.7	23.8	108
Toe Jam	7700	0.2	0.2₍₁₁₎	100	22.3	19.8₍₁₁₎	113
Snowstorm Mtn	7410	0.5	N/A	*	17.6	N/A	*
Lewis Peak	7380	0.0	0.4₍₂₀₎	0	21.4	17.0₍₂₀₎	126
Porter Canyon	7190	0.8	0.1₍₁₁₎	800	8.6	6.7₍₁₁₎	128
Buckskin Lower	6920	-0.2	0.2	-100	20.5	17.3	118
Midas	6630	0.1	N/A	*	11.5	N/A	*
Golconda	6630	0.6	N/A	*	18.6	N/A	*
Lamance Creek	6390	0.3	0.4	75	22.6	20.8	109
Basin Index (%)		118			112
CLOVER VALLEY & FRANKLIN RIVER
Lamoille Upper	8990	0.0	N/A	*	30.2	N/A	*
Corral Canyon	8440	0.8	0.6	133	28.1	23.0	122
Green Mountain	8180	1.0	0.8	125	26.7	25.0	107
Hole-in-Mountain	8170	0.0	0.6₍₂₉₎	0	31.1	26.6₍₂₉₎	117
Lamoille #3	8030	0.4	0.8	50	21.7	23.4	93
Dorsey Basin	7900	0.0	0.6	0	24.5	24.7	99
Pole Canyon	7760	0.1	N/A	*	25.8	N/A	*
Basin Index (%)		65			108
SNAKE RIVER
Pole Creek R.S.	8360	0.7	0.5	140	14.5	14.2	102
Bear Creek	8090	0.8	0.8	100	23.5	26.0	90
Stag Mountain	7640	0.1	N/A	*	8.6	N/A	*
Bostetter R.S.	7530	0.2	0.4	50	21.0	21.0	100
Jakes Creek	7380	-M	N/A	*	-M	N/A	*
Seventysix Creek	7360	0.2	0.4	50	16.4	15.7	104
Wilson Creek	7110	0.2	0.5	40	19.6	20.5	96
Merritt Mountain	6920	0.1	N/A	*	13.0	N/A	*
Big Bend	6890	0.0	0.2	0	13.5	12.2	111
Magic Mountain	6940	0.3	0.5	60	22.9	25.8	89
ONeil Creek	6490	0.2	N/A	*	9.5	N/A	*
Basin Index (%)		73			97
OWYHEE RIVER
Jacks Peak	8440	0.2	0.4	50	25.1	27.0	93
Toe Jam	7700	0.2	0.2₍₁₁₎	100	22.3	19.8₍₁₁₎	113
Jack Creek Upper	7380	0.0	0.4	0	20.5	21.8	94
Fawn Creek	7040	0.2	0.7	29	23.5	25.8	91
Merritt Mountain	6920	0.1	N/A	*	13.0	N/A	*
Big Bend	6890	0.0	0.2	0	13.5	12.2	111
Fry Canyon	6790	0.1	N/A	*	18.1	N/A	*
Laurel Draw	6680	0.1	0.4	25	21.9	19.6	112
Columbia Basin	6480	0.2	N/A	*	19.3	N/A	*
Taylor Canyon	6320	0.2	0.2	100	8.4	9.4	89
Basin Index (%)		36			100
EASTERN NEVADA
Cave Mountain	10580	0.7	N/A	*	12.2	N/A	*
Wheeler Peak	10070	1.4	0.4₍₁₀₎	350	16.4	17.8₍₁₀₎	92
Berry Creek	9350	0.3	0.7	43	18.7	18.7	100
Defiance Mines	9320	0.5	N/A	*	14.1	N/A	*
Ward Mountain	9170	0.4	0.4	100	14.1	15.9	89
Takka Wiiya	9110	0.5	N/A	*	17.7	N/A	*
Big Creek Sum	8710	1.2	0.5	240	17.4	18.0	97
Corduroy Flat	8640	0.0	N/A	*	9.9	N/A	*
Silver Creek Nv	8220	0.5	N/A	*	6.3	N/A	*
Diamond Peak	8030	0.3	0.4	75	14.2	16.4	87
Vacarro Springs	7890	0.5	N/A	*	14.9	N/A	*
Kalamazoo	7740	0.8	N/A	*	12.8	N/A	*
Bird Creek	7540	0.4	N/A	*	10.4	N/A	*
White River Nv	7370	0.3	N/A	*	7.1	N/A	*
Basin Index (%)		150			93
SOUTHERN NEVADA - Spring Mountains
Bristlecone Trail	8900	1.2	0.2₍₁₂₎	600	13.9	14.8₍₁₂₎	94
Lee Canyon	8620	1.0	0.2₍₁₂₎	500	10.5	16.2₍₁₂₎	65
Rainbow Canyon	7840	0.8	0.0₍₁₂₎	*	15.6	18.8₍₁₂₎	83
Basin Index (%)		750			80

-M = Missing data.
* = Analysis may not provide a valid measure of conditions.
N/A = Not available.

Footnotes for median and average:
(##) = If less than 30 years are available, this value specifies the number of years used for the median and average calculations.
Sites with less than 10 years available do not have medians or averages.

The MONTH-TO-DATE PRECIPITATION Percent of Median (or Average) represents the total precipitation
(beginning on the 1st day of the current month) found at selected SNOTEL sites in or
near the basin compared to the Median (or Average) value for those sites on this day.

The WATER YEAR-TO-DATE-PRECIPITATION represents total precipitation since October 1st, expressed in inches.

Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1991-2020.

Provisional data, subject to revision.

* Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median or average for the day is less than 10% of the maximum median or average value for the year.

* Basin - More than half of the stations for a basin with normals report missing or invalid data.

The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100.