California/Nevada SNOTEL Snowpack Update Report

California/Nevada SNOTEL Snowpack 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, May 20, 2024

Basin Site Name	Elev (ft)	Snow Water Equivalent				Percent of
Basin Site Name	Elev (ft)	Current (in)	Today's Median (in)	Median Peak (in)	Median Peak Date	Today's Median	Median Peak
LAKE TAHOE
Mt Rose Ski Area	8801	19.0	24.4	37.4	Apr 15	78	51
Heavenly Valley	8534	0.0	0.6	23.8	Mar 30	0*	0*
Carson Pass	8355	8.0	5.8₍₁₆₎	30.1₍₁₆₎	Apr 07₍₁₆₎	138	27
Palisades Tahoe	8013	3.8	22.1	50.8	Apr 05	17	7
Marlette Lake	7884	1.0	0.0	22.7	Mar 29	*	4*
Hagans Meadow	7742	0.0	0.0	17.2	Mar 12	*	0*
Echo Peak	7653	0.0	1.3	43.0	Mar 28	0*	0*
Rubicon #2	7619	8.9	1.6	26.5	Apr 05	556*	34*
Tahoe City Cross	6797	0.0	0.0	14.1	Mar 08	*	0*
Ward Creek #3	6745	7.1	0.0	37.3	Mar 29	*	19*
Fallen Leaf	6242	0.0	0.0	N/A	N/A	*	*
Basin Index (%)		86*
TRUCKEE RIVER
Mt Rose Ski Area	8801	19.0	24.4	37.4	Apr 15	78	51
Independence Lake	8338	37.6	35.8	45.1	Apr 25	105	83
Big Meadow	8235	0.0	0.0	21.0	Apr 01	*	0*
Palisades Tahoe	8013	3.8	22.1	50.8	Apr 05	17	7
Marlette Lake	7884	1.0	0.0	22.7	Mar 29	*	4*
Independence Camp	6980	0.0	0.0	17.4	Mar 24	*	0*
Css Lab	6894	0.5	0.2	37.9	Mar 26	250*	1*
Tahoe City Cross	6797	0.0	0.0	14.1	Mar 08	*	0*
Ward Creek #3	6745	7.1	0.0	37.3	Mar 29	*	19*
Truckee #2	6509	0.0	0.0	17.8	Mar 14	*	0*
Little Valley	6493	0.0	N/A	N/A	N/A	*	*
Independence Creek	6436	0.0	0.0	14.2	Mar 22	*	0*
Basin Index (%)		84*
CARSON RIVER
Ebbetts Pass	8661	5.8	8.8	35.1	Apr 12	66	17
Horse Meadow	8557	2.5	0.0₍₁₇₎	20.5₍₁₇₎	Mar 26₍₁₇₎	*	12*
Heavenly Valley	8534	0.0	0.6	23.8	Mar 30	0*	0*
Carson Pass	8355	8.0	5.8₍₁₆₎	30.1₍₁₆₎	Apr 07₍₁₆₎	138	27
Monitor Pass	8306	0.0	0.0	15.6	Mar 28	*	0*
Burnside Lake	8129	0.0	0.0₍₁₇₎	24.7₍₁₇₎	Mar 27₍₁₇₎	*	0*
Blue Lakes	8067	15.9	12.4	29.2	Apr 14	128	54
Forestdale Creek	8017	16.9	9.1₍₁₇₎	33.8₍₁₇₎	Apr 05₍₁₇₎	186	50
Marlette Lake	7884	1.0	0.0	22.7	Mar 29	*	4*
Hagans Meadow	7742	0.0	0.0	17.2	Mar 12	*	0*
Poison Flat	7736	0.0	0.0	18.3	Apr 03	*	0*
Spratt Creek	6063	0.0	0.0	N/A	N/A	*	*
Basin Index (%)		137*
WALKER RIVER
Leavitt Lake	9604	51.7	46.9	59.0	Apr 25	110	88
Virginia Lakes Ridge	9400	4.4	5.0	16.2	Apr 18	88	27
Summit Meadow	9313	0.0	2.2₍₁₇₎	20.7₍₁₇₎	Apr 05₍₁₇₎	0	0
Lobdell Lake	9249	0.0	0.0	16.6	Apr 04	*	0*
Sonora Pass	8770	7.9	7.8	23.4	Apr 17	101	34
Monitor Pass	8306	0.0	0.0	15.6	Mar 28	*	0*
Willow Flat CA	8215	0.0	N/A	N/A	N/A	*	*
Leavitt Meadows	7198	0.0	0.0	N/A	N/A	*	*
Basin Index (%)		103
NORTHERN GREAT BASIN
Granite Peak	8503	10.0	2.6	21.6	Apr 15	385	46
Summit Lk	7615	0.0	N/A	N/A	N/A	*	*
Dismal Swamp	7360	-M	13.2	31.7	Apr 12	*	*
Cedar Pass	7030	0.2	0.0	19.6	Apr 05	*	1*
Buckskin Lower	6930	0.0	0.0	10.4	Mar 25	*	0*
Lamance Creek	6395	0.0	0.0	10.6	Mar 09	*	0*
Disaster Peak	6260	0.0	0.0	7.8	Mar 05	*	0*
Sheldon	5865	0.0	0.0	N/A	N/A	*	*
Basin Index (%)		392*
NEVADA
UPPER HUMBOLDT RIVER
Lamoille Upper	8993	28.5	N/A	N/A	N/A	*	*
Corral Canyon	8445	2.2	2.0	18.0	Apr 17	110	12
Jacks Peak	8424	-M	N/A	N/A	N/A	*	*
Green Mountain	8185	0.0	0.0	15.6	Mar 22	*	0*
Lamoille #3	8051	0.0	0.0	13.5	Mar 25	*	0*
Bear Creek	8040	6.6	7.3	20.4	Apr 15	90	32
Dorsey Basin	7903	0.0	0.0	15.2	Apr 05	*	0*
Pole Canyon	7760	0.0	N/A	N/A	N/A	*	*
Stag Mountain	7640	-M	N/A	N/A	N/A	*	*
Jakes Creek	7380	-M	N/A	N/A	N/A	*	*
Jack Creek Upper	7377	5.2	0.0	18.2	Apr 12	*	29*
Seventysix Creek	7350	0.0	0.0	11.0	Mar 22	*	0*
Draw Creek	7332	0.0	0.0	12.7	Mar 27	*	0*
Tent Mtn Lower	7100	-M	N/A	N/A	N/A	*	*
Fry Canyon	6798	0.0	N/A	N/A	N/A	*	*
Dry Creek	6555	0.0	N/A	N/A	N/A	*	*
Taylor Canyon	6325	0.0	0.0	6.0	Mar 08	*	0*
Basin Index (%)		151*
LOWER HUMBOLDT RIVER
Big Creek Sum	8685	2.5	0.8	18.8	Apr 19	312*	13*
Granite Peak	8503	10.0	2.6	21.6	Apr 15	385	46
Toe Jam	7690	0.7	0.0₍₁₁₎	15.4₍₁₁₎	Apr 06₍₁₁₎	*	5*
Snowstorm Mtn	7403	-M	N/A	N/A	N/A	*	*
Lewis Peak	7370	0.0	0.0₍₂₀₎	11.2₍₂₀₎	Mar 24₍₂₀₎	*	0*
Porter Canyon	7187	0.0	N/A	N/A	N/A	*	*
Buckskin Lower	6930	0.0	0.0	10.4	Mar 25	*	0*
Midas	6630	-M	N/A	N/A	N/A	*	*
Golconda	6616	0.0	N/A	N/A	N/A	*	*
Lamance Creek	6395	0.0	0.0	10.6	Mar 09	*	0*
Basin Index (%)		388*
CLOVER VALLEY & FRANKLIN RIVER
Lamoille Upper	8993	28.5	N/A	N/A	N/A	*	*
Corral Canyon	8445	2.2	2.0	18.0	Apr 17	110	12
Green Mountain	8185	0.0	0.0	15.6	Mar 22	*	0*
Hole-in-Mountain	8163	6.8	0.1₍₂₅₎	17.3₍₂₅₎	Apr 01₍₂₅₎	6800*	39*
Lamoille #3	8051	0.0	0.0	13.5	Mar 25	*	0*
Dorsey Basin	7903	0.0	0.0	15.2	Apr 05	*	0*
Pole Canyon	7760	0.0	N/A	N/A	N/A	*	*
Basin Index (%)		429*
SNAKE RIVER
Pole Creek R.S.	8360	13.2	13.7	21.4	Apr 25	96	62
Bear Creek	8040	6.6	7.3	20.4	Apr 15	90	32
Stag Mountain	7640	-M	N/A	N/A	N/A	*	*
Bostetter R.S.	7500	2.5	0.0	17.3	Apr 01	*	14*
Jakes Creek	7380	-M	N/A	N/A	N/A	*	*
Seventysix Creek	7350	0.0	0.0	11.0	Mar 22	*	0*
Wilson Creek	7120	0.0	0.0	13.8	Mar 26	*	0*
Merritt Mountain	6915	-M	N/A	N/A	N/A	*	*
Big Bend	6898	0.0	0.0	10.0	Mar 18	*	0*
Magic Mountain	6880	6.9	0.0	19.3	Mar 31	*	36*
ONeil Creek	6520	0.0	N/A	N/A	N/A	*	*
Basin Index (%)		139*
OWYHEE RIVER
Jacks Peak	8424	-M	N/A	N/A	N/A	*	*
Toe Jam	7690	0.7	0.0₍₁₁₎	15.4₍₁₁₎	Apr 06₍₁₁₎	*	5*
Jack Creek Upper	7377	5.2	0.0	18.2	Apr 12	*	29*
Fawn Creek	7031	0.0	0.0	17.8	Apr 07	*	0*
Merritt Mountain	6915	-M	N/A	N/A	N/A	*	*
Big Bend	6898	0.0	0.0	10.0	Mar 18	*	0*
Fry Canyon	6798	0.0	N/A	N/A	N/A	*	*
Laurel Draw	6682	0.0	0.0	11.3	Mar 15	*	0*
Columbia Basin	6483	-M	N/A	N/A	N/A	*	*
Taylor Canyon	6325	0.0	0.0	6.0	Mar 08	*	0*
Basin Index (%)		*
EASTERN NEVADA
Cave Mountain	10578	4.2	N/A	N/A	N/A	*	*
Wheeler Peak	10060	1.8	0.8₍₁₀₎	11.6₍₁₀₎	Apr 19₍₁₀₎	225*	16*
Berry Creek	9377	10.2	8.1	N/A	N/A	126	*
Defiance Mines	9302	-M	N/A	N/A	N/A	*	*
Ward Mountain	9163	0.0	0.0	12.4	Mar 31	*	0*
Takka Wiiya	9122	2.0	N/A	N/A	N/A	*	*
Big Creek Sum	8685	2.5	0.8	18.8	Apr 19	312*	13*
Corduroy Flat	8640	0.0	N/A	N/A	N/A	*	*
Silver Creek Nv	8200	-M	N/A	N/A	N/A	*	*
Diamond Peak	8017	0.0	0.0	7.0	Mar 10	*	0*
Vacarro Springs	7890	0.0	N/A	N/A	N/A	*	*
Kalamazoo	7775	0.0	N/A	N/A	N/A	*	*
Bird Creek	7537	0.0	N/A	N/A	N/A	*	*
White River Nv	7367	-M	N/A	N/A	N/A	*	*
Basin Index (%)		149*
SOUTHERN NEVADA - Spring Mountains
Bristlecone Trail	8890	0.0	0.0₍₁₂₎	7.9₍₁₂₎	Mar 10₍₁₂₎	*	0*
Lee Canyon	8626	0.0	0.0₍₁₂₎	8.6₍₁₂₎	Mar 13₍₁₂₎	*	0*
Rainbow Canyon	7860	0.0	0.0₍₁₂₎	6.4₍₁₂₎	Mar 02₍₁₂₎	*	0*
Basin Index (%)		*

-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 snow water equivalent percent of median (or average) represents the current snow water
equivalent found at selected SNOTEL sites in or near the basin compared to the median (or average) value
for those sites on this day.

The snow water equivalent percent of median (or average) peak represents the current
snow water equivalent at selected SNOTEL sites in or near the basin compared to the median (or average)
of the maximum seasonal values observed each 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.