California SNOTEL Snow/Precipitation Update Report

California SNOTEL Snow/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 Tuesday, January 03, 2023

Basin Site Name	Elev (ft)	Snow Water Equivalent			Water Year-to-Date Precipitation
Basin Site Name	Elev (ft)	Current (in)	Median (in)	Pct of Median	Current (in)	Median (in)	Pct of Median
TRUCKEE RIVER
Mt Rose Ski Area	8810	26.5	11.5	230	28.5	17.1	167
Independence Lake	8340	23.7	12.0	198	25.1	15.0	167
Big Meadow	8240	17.1	6.6	259	17.6	10.0	176
Palisades Tahoe	8010	29.8	15.8	189	29.6	19.2	154
Marlette Lake	7860	15.8	7.1	223	18.1	9.9	183
Independence Camp	6970	15.8	4.6	343	15.3	8.8	174
Css Lab	6880	20.6	11.9	173	30.5	21.0	145
Tahoe City Cross	6760	9.7	4.3	226	23.5	11.0	214
Ward Creek #3	6750	20.5	9.3	220	36.2	21.3	170
Truckee #2	6500	14.2	5.9	241	20.2	10.5	192
Little Valley	6500	9.0	N/A	*	18.6	N/A	*
Independence Creek	6440	8.7	4.4	198	14.9	9.2	162
Basin Index (%)		217			170
LAKE TAHOE
Mt Rose Ski Area	8810	26.5	11.5	230	28.5	17.1	167
Heavenly Valley	8540	19.6	7.9	248	21.2	9.2	230
Carson Pass	8360	20.3	9.4₍₁₆₎	216	20.0	14.2₍₁₆₎	141
Palisades Tahoe	8010	29.8	15.8	189	29.6	19.2	154
Marlette Lake	7860	15.8	7.1	223	18.1	9.9	183
Hagans Meadow	7740	15.1	4.8	315	19.6	8.6	228
Echo Peak	7650	30.8	12.6	244	38.2	18.6	205
Rubicon #2	7570	18.3	7.8	235	23.1	11.8	196
Tahoe City Cross	6760	9.7	4.3	226	23.5	11.0	214
Ward Creek #3	6750	20.5	9.3	220	36.2	21.3	170
Fallen Leaf	6250	9.1	1.9	479	23.6	10.0	236
Basin Index (%)		233			187
CARSON RIVER
Ebbetts Pass	8660	27.4	11.5	238	30.8	16.6	186
Lost Lakes	8640	-M	N/A	*	-M	N/A	*
Horse Meadow	8580	17.3	6.6₍₁₇₎	262	17.0	7.9₍₁₇₎	215
Heavenly Valley	8540	19.6	7.9	248	21.2	9.2	230
Carson Pass	8360	20.3	9.4₍₁₆₎	216	20.0	14.2₍₁₆₎	141
Monitor Pass	8320	16.5	4.5	367	14.7	6.4	230
Burnside Lake	8180	20.6	7.9₍₁₇₎	261	22.6	14.0₍₁₇₎	161
Blue Lakes	8060	21.7	8.5	255	21.7	12.1	179
Forestdale Creek	8050	24.6	10.5₍₁₇₎	234	27.2	16.5₍₁₇₎	165
Marlette Lake	7860	15.8	7.1	223	18.1	9.9	183
Hagans Meadow	7740	15.1	4.8	315	19.6	8.6	228
Poison Flat	7730	19.1	4.6	415	20.3	9.0	226
Spratt Creek	6060	6.6	1.6	412	21.7	9.2	236
Basin Index (%)		265			191
WALKER RIVER
Leavitt Lake	9600	34.4	18.5	186	29.7	16.7	178
Virginia Lakes Ridge	9400	12.4	4.1	302	12.7	6.8	187
Summit Meadow	9360	17.0	6.0₍₁₇₎	283	13.4	7.8₍₁₇₎	172
Lobdell Lake	9260	15.1	4.2	360	14.8	6.9	214
Sonora Pass	8770	18.4	7.0	263	20.1	9.3	216
Monitor Pass	8320	16.5	4.5	367	14.7	6.4	230
Willow Flat CA	8220	-M	N/A	*	-M	N/A	*
Leavitt Meadows	7200	10.9	3.2	341	22.2	9.8	227
Basin Index (%)		263			200
KLAMATH RIVER
Annie Springs	6020	18.3	14.6₍₂₀₎	125	24.2	27.8₍₂₀₎	87
Big Red Mountain	6060	8.8	9.5	93	20.6	19.4	106
Billie Creek Divide	5280	9.5	8.5	112	20.7	21.8	95
Chemult Alternate	4850	7.1	4.4	161	10.0	10.0	100
Cold Springs Camp	5940	10.5	10.4	101	15.4	N/A	*
Crazyman Flat	6190	10.5	6.8₍₁₉₎	154	11.8	12.2₍₁₉₎	97
Crowder Flat	5180	3.3	1.6₍₂₁₎	206	6.6	5.2₍₂₁₎	127
Diamond Lake	5280	4.6	6.1	75	18.0	19.6	92
Fish Lk.	4660	4.4	5.2	85	17.4	17.0	102
Fourmile Lake	5970	11.5	9.8	117	20.8	23.2	90
Gerber Reservoir	4880	1.8	1.2₍₂₂₎	150	6.5	5.2₍₂₂₎	125
Howard Prairie	4580	2.8	N/A	*	13.0	N/A	*
Quartz Mountain	5710	2.8	0.9₍₂₇₎	311	8.2	5.4₍₁₇₎	152
Sevenmile Marsh	5690	13.1	9.8	134	24.7	25.6	96
Silver Creek	5750	7.2	4.0	180	10.1	9.4	107
State Line	5690	4.7	N/A	*	8.0	N/A	*
Strawberry	5760	5.5	2.4	229	9.0	7.3	123
Summer Rim	7080	7.1	N/A	*	8.2	9.2	89
Sun Pass	5400	11.4	7.2₍₁₄₎	158	15.6	16.4₍₁₄₎	95
Swan Lake Mtn	6840	15.1	8.0₍₁₃₎	189	17.2	14.0₍₁₃₎	123
Taylor Butte	5030	5.3	3.2	166	8.4	6.6	127
Basin Index (%)		133			101

-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.

If the Basin Index (%) percent value is flagged as potentially invalid,
care should be taken to evaluate if the value is representative
of conditions in the basin.

The SNOW WATER EQUIVALENT represents the depth of water in the snowpack, if the
snowpack were melted, expressed in inches.

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.