California/Nevada SNOTEL Precipitation Summary Update Report

California/Nevada SNOTEL Precipitation Summary 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 Monday, September 25, 2023

Basin Site Name	Elev (ft)
Basin Site Name	Elev (ft)	Month to Date Precipitation (in)	Median Monthly Total (in)	Pct of Monthly Total	Water Year to Date Precipitation (in)	Median Annual Total (in)	Pct of Annual Total
LAKE TAHOE
Mt Rose Ski Area	8801	1.9	0.2	950	84.7	48.4	175
Heavenly Valley	8534	1.0	0.3	333	62.1	30.3	205
Carson Pass	8355	3.3	0.4₍₁₆₎	825	69.9	36.8₍₁₆₎	190
Palisades Tahoe	8013	1.4	0.5	280	76.1	58.5	130
Marlette Lake	7884	1.4	0.3	467	56.4	29.8	189
Hagans Meadow	7742	1.9	0.3	633	55.5	29.6	188
Echo Peak	7653	3.0	0.4	750	93.2	53.7	174
Rubicon #2	7619	1.2	0.4	300	63.1	37.2	170
Tahoe City Cross	6797	0.6	0.3	200	59.4	33.0	180
Ward Creek #3	6745	1.5	0.4	375	92.5	65.4	141
Fallen Leaf	6242	1.6	0.3	533	55.6	30.2	184
Basin Index (%)		495			170
TRUCKEE RIVER
Mt Rose Ski Area	8801	1.9	0.2	950	84.7	48.4	175
Independence Lake	8338	1.8	0.4	450	75.9	44.2	172
Big Meadow	8235	1.0	0.3	333	49.4	28.9	171
Palisades Tahoe	8013	1.4	0.5	280	76.1	58.5	130
Marlette Lake	7884	1.4	0.3	467	56.4	29.8	189
Independence Camp	6980	1.0	0.4	250	41.0	27.2	151
Css Lab	6894	2.0	0.6	333	92.6	65.8	141
Tahoe City Cross	6797	0.6	0.3	200	59.4	33.0	180
Ward Creek #3	6745	1.5	0.4	375	92.5	65.4	141
Truckee #2	6509	1.4	0.3	467	57.3	31.7	181
Little Valley	6493	1.5	N/A	*	48.7	N/A	*
Independence Creek	6436	1.0	0.3	333	40.4	29.1	139
Basin Index (%)		375			157
CARSON RIVER
Ebbetts Pass	8661	0.8	0.6	133	87.5	49.1	178
Horse Meadow	8557	0.4	0.3₍₁₇₎	133	51.4	22.1₍₁₇₎	233
Heavenly Valley	8534	1.0	0.3	333	62.1	30.3	205
Carson Pass	8355	3.3	0.4₍₁₆₎	825	69.9	36.8₍₁₆₎	190
Monitor Pass	8306	0.4	0.4	100	49.0	21.0	233
Burnside Lake	8129	1.1	0.2₍₁₇₎	550	67.4	36.4₍₁₇₎	185
Blue Lakes	8067	1.6	0.4	400	69.7	40.1	174
Forestdale Creek	8017	2.3	0.6₍₁₇₎	383	78.3	42.4₍₁₇₎	185
Marlette Lake	7884	1.4	0.3	467	56.4	29.8	189
Hagans Meadow	7742	1.9	0.3	633	55.5	29.6	188
Poison Flat	7736	0.8	0.5	160	54.9	31.6	174
Spratt Creek	6063	0.5	0.4	125	56.4	28.9	195
Basin Index (%)		330			191
WALKER RIVER
Leavitt Lake	9604	1.2	0.8	150	88.7	52.6	169
Virginia Lakes Ridge	9400	0.7	0.4	175	51.0	24.2	211
Summit Meadow	9313	1.4	0.3₍₁₇₎	467	45.6	23.9₍₁₇₎	191
Lobdell Lake	9249	0.9	0.4	225	49.0	22.6	217
Sonora Pass	8770	1.7	0.6	283	65.3	34.0	192
Monitor Pass	8306	0.4	0.4	100	49.0	21.0	233
Leavitt Meadows	7198	1.2	0.6	200	59.6	31.0	192
Basin Index (%)		214			195
NORTHERN GREAT BASIN
Granite Peak	8503	1.4	0.7	200	38.4	29.2	132
Summit Lk	7615	1.0	N/A	*	28.8	N/A	*
Dismal Swamp	7360	1.5	0.9	167	53.5	46.1	116
Cedar Pass	7030	0.8	0.4	200	39.6	31.8	125
Buckskin Lower	6930	1.2	0.8	150	28.8	24.0	120
Lamance Creek	6395	1.8	0.6	300	35.0	25.6	137
Disaster Peak	6260	1.0	0.3	333	25.8	19.7	131
Sheldon	5865	0.9	0.3	300	14.5	10.6	137
Basin Index (%)		215			126
NEVADA
UPPER HUMBOLDT RIVER
Lamoille Upper	8993	1.9	N/A	*	54.5	N/A	*
Corral Canyon	8445	1.7	1.2	142	43.7	28.0	156
Jacks Peak	8424	-M	1.2	*	-M	33.2	*
Green Mountain	8185	1.7	1.0	170	41.3	30.5	135
Lamoille #3	8051	2.3	1.2	192	43.0	30.5	141
Bear Creek	8040	2.6	1.0	260	41.2	33.8	122
Dorsey Basin	7903	2.8	1.2	233	40.4	32.1	126
Pole Canyon	7760	1.0	N/A	*	44.4	N/A	*
Stag Mountain	7640	-M	N/A	*	-M	N/A	*
Jakes Creek	7380	1.7	N/A	*	28.3	N/A	*
Jack Creek Upper	7377	2.8	1.1	255	33.4	27.4	122
Seventysix Creek	7350	2.1	1.0	210	25.3	21.6	117
Draw Creek	7332	2.2	0.5	440	32.1	20.4	157
Tent Mtn Lower	7100	2.0	N/A	*	27.9	N/A	*
Fry Canyon	6798	2.4	N/A	*	30.2	N/A	*
Dry Creek	6555	2.5	N/A	*	27.2	N/A	*
Taylor Canyon	6325	1.8	0.6	300	17.4	13.2	132
Basin Index (%)		227			134
LOWER HUMBOLDT RIVER
Big Creek Sum	8685	5.1	0.6	850	44.8	23.2	193
Granite Peak	8503	1.4	0.7	200	38.4	29.2	132
Toe Jam	7690	3.9	1.1₍₁₁₎	355	37.8	25.6₍₁₁₎	148
Snowstorm Mtn	7403	3.6	N/A	*	32.5	N/A	*
Lewis Peak	7370	4.4	0.8₍₂₀₎	550	41.0	21.2₍₂₀₎	193
Porter Canyon	7187	4.5	0.4₍₁₀₎	1125	24.5	11.8₍₁₀₎	208
Buckskin Lower	6930	1.2	0.8	150	28.8	24.0	120
Midas	6630	2.4	N/A	*	21.9	N/A	*
Golconda	6616	2.1	N/A	*	33.0	N/A	*
Lamance Creek	6395	1.8	0.6	300	35.0	25.6	137
Basin Index (%)		446			156
CLOVER VALLEY & FRANKLIN RIVER
Lamoille Upper	8993	1.9	N/A	*	54.5	N/A	*
Corral Canyon	8445	1.7	1.2	142	43.7	28.0	156
Green Mountain	8185	1.7	1.0	170	41.3	30.5	135
Hole-in-Mountain	8163	2.3	1.1₍₂₉₎	209	53.2	34.7₍₂₉₎	153
Lamoille #3	8051	2.3	1.2	192	43.0	30.5	141
Dorsey Basin	7903	2.8	1.2	233	40.4	32.1	126
Pole Canyon	7760	1.0	N/A	*	44.4	N/A	*
Basin Index (%)		189			142
SNAKE RIVER
Pole Creek R.S.	8360	1.9	0.7	271	30.1	20.9	144
Bear Creek	8040	2.6	1.0	260	41.2	33.8	122
Stag Mountain	7640	-M	N/A	*	-M	N/A	*
Bostetter R.S.	7500	2.1	1.0	210	37.0	28.1	132
Jakes Creek	7380	1.7	N/A	*	28.3	N/A	*
Seventysix Creek	7350	2.1	1.0	210	25.3	21.6	117
Wilson Creek	7120	1.9	0.8	238	29.5	27.7	106
Merritt Mountain	6915	1.3	N/A	*	20.0	N/A	*
Big Bend	6898	3.5	0.8	438	22.6	17.2	131
Magic Mountain	6880	2.5	0.9	278	37.3	32.6	114
ONeil Creek	6520	1.5	N/A	*	24.8	N/A	*
Basin Index (%)		268			123
OWYHEE RIVER
Jacks Peak	8424	-M	1.2	*	-M	33.2	*
Toe Jam	7690	3.9	1.1₍₁₁₎	355	37.8	25.6₍₁₁₎	148
Jack Creek Upper	7377	2.8	1.1	255	33.4	27.4	122
Fawn Creek	7031	2.2	1.0	220	30.4	32.1	95
Merritt Mountain	6915	1.3	N/A	*	20.0	N/A	*
Big Bend	6898	3.5	0.8	438	22.6	17.2	131
Fry Canyon	6798	2.4	N/A	*	30.2	N/A	*
Laurel Draw	6682	1.5	0.9	167	28.0	25.8	109
Columbia Basin	6483	1.8	N/A	*	27.8	N/A	*
Taylor Canyon	6325	1.8	0.6	300	17.4	13.2	132
Basin Index (%)		285			120
EASTERN NEVADA
Cave Mountain	10578	1.6	N/A	*	35.4	N/A	*
Wheeler Peak	10060	2.3	1.4₍₁₀₎	164	50.7	28.2₍₁₀₎	180
Berry Creek	9377	2.5	1.3	192	42.1	26.4	159
Defiance Mines	9302	2.5	N/A	*	44.3	N/A	*
Ward Mountain	9163	2.3	1.0	230	36.3	21.2	171
Takka Wiiya	9122	2.3	N/A	*	30.8	N/A	*
Big Creek Sum	8685	5.1	0.6	850	44.8	23.2	193
Corduroy Flat	8640	2.2	N/A	*	24.4	N/A	*
Silver Creek Nv	8200	1.5	N/A	*	20.5	N/A	*
Diamond Peak	8017	2.4	0.8	300	30.2	20.3	149
Vacarro Springs	7890	3.8	N/A	*	36.8	N/A	*
Kalamazoo	7775	1.7	N/A	*	28.7	N/A	*
Bird Creek	7537	1.3	N/A	*	22.6	N/A	*
White River Nv	7367	2.4	N/A	*	25.5	N/A	*
Basin Index (%)		286			171
SOUTHERN NEVADA - Spring Mountains
Bristlecone Trail	8890	2.6	0.9₍₁₂₎	289	47.9	18.8₍₁₂₎	255
Lee Canyon	8626	2.8	1.0₍₁₂₎	280	44.8	22.1₍₁₂₎	203
Rainbow Canyon	7860	2.1	1.2₍₁₂₎	175	47.4	26.2₍₁₂₎	181
Basin Index (%)		242			209

-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 % Monthly Total represents the precipitation accumulated from the 1st day of the current
month through the current day found at selected SNOTEL sites in or near the basin compared
to the Median (or Average) total precipitation for the current month for those sites.

The % Annual Total represents the precipitation accumulated from the start of the water year
(Oct 1) through the current day found at selected SNOTEL sites in or near the basin compared
to the Median (or Average) total precipitation for the entire water year for those sites.

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.

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