Washington SNOTEL Snow/Precipitation Update Report

Washington 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 Thursday, November 21, 2024

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
SPOKANE
Sherwin	3200	1.1	0.4	275*	5.7	6.2	92
Ragged Mountain	4210	3.2	1.2₍₁₄₎	267*	8.3	7.0₍₁₄₎	119
Humboldt Gulch	4250	1.8	1.2	150	7.1	8.8	81
Mica Creek	4510	-M	1.8	*	-M	8.6	*
Quartz Peak	4700	5.5	1.7	324*	9.1	7.1	128
Lookout	5190	4.0	2.2	182*	7.8	8.4	93
Mosquito Ridge	5260	6.2	4.2	148	8.3	9.8	85
Sunset	5540	2.8	1.9	147*	5.6	8.0	70
Lost Lake	6110	9.5	6.2	153	12.1	12.3	98
Basin Index (%)		179*			95
LOWER PEND OREILLE
Quartz Peak	4700	5.5	1.7	324*	9.1	7.1	128
Bunchgrass Mdw	5000	5.4	4.0	135	7.8	8.5	92
Hidden Lake	5040	8.3	4.8₍₂₀₎	173	15.6	15.0₍₂₀₎	104
Mosquito Ridge	5260	6.2	4.2	148	8.3	9.8	85
Schweitzer Basin	6090	11.9	6.4	186	11.6	8.5	136
Basin Index (%)		177			107
UPPER COLUMBIA
Swamp Creek	3930	-M	1.3₍₂₁₎	*	-M	8.7₍₂₁₎	*
Gold Mountain	4390	4.2	N/A	*	6.8	N/A	*
Salmon Meadows	4460	4.5	0.9	500*	5.2	3.3	158
Muckamuck	4470	3.2	N/A	*	4.6	N/A	*
Sentinel Butte	4680	4.0	1.4₍₁₇₎	286	4.4	3.0₍₁₇₎	147
Rainy Pass	4890	4.0	4.1	98	9.7	11.6	84
Moses Mtn	5010	-M	1.3₍₂₉₎	*	-M	3.6₍₂₉₎	*
Gold Axe Camp	5360	4.1	0.8₍₁₀₎	512*	3.8	2.2₍₁₀₎	173
Harts Pass	6490	7.9	7.9	100	8.0	8.8	91
Basin Index (%)		162*			108
CENTRAL COLUMBIA
Trinity	2930	2.9	1.4₍₁₀₎	207*	13.4	13.6₍₁₀₎	99
Fish Lake	3430	1.6	2.0	80*	10.5	13.6	77
Pope Ridge	3590	2.2	1.2	183*	7.1	7.1	100
Stevens Pass	3950	4.8	3.2	150*	17.0	19.9	85
Blewett Pass	4240	1.0	0.8	125*	6.1	5.9	103
Upper Wheeler	4330	2.1	0.6	350*	5.6	4.4	127
Park Creek Ridge	4600	-M	4.5	*	-M	13.0	*
Rainy Pass	4890	4.0	4.1	98	9.7	11.6	84
Grouse Camp	5390	4.6	1.6	288*	6.4	5.0	128
Trough	5480	3.9	1.2	325	5.8	4.2	138
Lyman Lake	5980	11.3	8.7	130	18.2	14.4	126
Basin Index (%)		155*			100
UPPER YAKIMA
Fish Lake	3430	1.6	2.0	80*	10.5	13.6	77
Stampede Pass	3850	2.1	2.2	95*	12.7	16.3	78
Olallie Meadows	4030	5.6	2.6	215*	21.1	24.7	85
Blewett Pass	4240	1.0	0.8	125*	6.1	5.9	103
Sasse Ridge	4340	-M	3.0	*	-M	10.8	*
Grouse Camp	5390	4.6	1.6	288*	6.4	5.0	128
Trough	5480	3.9	1.2	325	5.8	4.2	138
Basin Index (%)		181*			90
NACHES
White Pass E.S.	4440	4.6	1.0	460*	10.0	8.4	119
Bumping Ridge	4610	4.1	1.0	410*	11.9	13.2	90
Sawmill Ridge	4640	1.0	0.9₍₁₄₎	111*	9.2	12.5₍₁₄₎	74
Cayuse Pass	5240	13.6	4.0₍₁₄₎	340*	-M	14.4₍₁₂₎	*
Morse Lake	5410	11.7	4.4	266*	17.5	15.6	112
Corral Pass	5800	7.3	3.2₍₂₉₎	228*	10.3	10.1₍₂₉₎	102
Pigtail Peak	5800	-M	4.6	*	-M	14.2	*
Green Lake	5920	5.9	2.0	295*	7.7	5.4	143
Basin Index (%)		292*			102
LOWER YAKIMA
Satus Pass	3960	1.6	N/A	*	7.1	N/A	*
Lost Horse	5120	4.7	1.2	392*	4.9	4.8	102
Indian Rock	5360	8.0	1.4₍₁₂₎	571*	9.5	7.5₍₁₂₎	127
Green Lake	5920	5.9	2.0	295*	7.7	5.4	143
Basin Index (%)		404*			125
KLICKITAT
Satus Pass	3960	1.6	N/A	*	7.1	N/A	*
Potato Hill	4510	9.4	1.5	627*	16.0	11.5	139
Lost Horse	5120	4.7	1.2	392*	4.9	4.8	102
Indian Rock	5360	8.0	1.4₍₁₂₎	571*	9.5	7.5₍₁₂₎	127
Green Lake	5920	5.9	2.0	295*	7.7	5.4	143
Basin Index (%)		459*			130
LOWER SNAKE, WALLA WALLA
Sourdough Gulch	4000	-M	0.0₍₂₀₎	*	-M	2.3₍₂₀₎	*
Bowman Springs	4530	1.7	0.2	850*	4.7	3.8	124
County Line	4830	0.8	0.1	800*	3.2	3.3	97
High Ridge	4920	5.9	1.8	328*	8.5	7.4	115
Beaver Reservoir	5150	2.9	0.6	483*	5.4	4.2	129
Schneider Meadows	5400	9.4	2.1	448*	10.7	5.6	191
Touchet	5530	-M	2.7	*	-M	9.1	*
Milk Shakes	5580	-M	2.8₍₁₃₎	*	-M	10.6₍₁₃₎	*
Wolf Creek	5630	4.1	1.2	342*	5.1	3.9	131
Spruce Springs	5700	2.3	0.8₍₂₀₎	288*	4.6	5.2₍₂₀₎	88
Taylor Green	5740	-M	1.3	*	-M	5.0	*
Moss Springs	5760	5.0	2.6	192	8.1	7.8	104
Aneroid Lake #2	7400	4.4	2.5	176	7.0	6.2	113
Mt. Howard	7910	1.5	2.5	60	6.3	6.0	105
Basin Index (%)		264*			119
LOWER COLUMBIA
Pepper Creek	2140	1.0	0.0₍₁₃₎	*	15.8	10.8₍₁₃₎	146
Calamity	2500	1.9	0.0₍₁₂₎	*	26.2	21.6₍₁₂₎	121
Spencer Meadow	3400	3.0	1.5	200*	25.6	19.2	133
June Lake	3440	5.8	1.2	483*	37.7	33.0	114
Spirit Lake	3520	3.9	0.2	1950*	19.7	18.0	109
Skate Creek	3770	3.6	N/A	*	21.2	N/A	*
Lone Pine	3930	8.1	1.3	623*	24.4	18.4	133
Sheep Canyon	3990	6.5	1.4	464*	39.3	27.5	143
Surprise Lakes	4290	-M	2.0	*	-M	18.8	*
Pinto Rock	4440	7.7	N/A	*	14.7	N/A	*
Swift Creek	4440	16.7	4.9₍₁₈₎	341*	47.8	32.8₍₁₈₎	146
White Pass E.S.	4440	4.6	1.0	460*	10.0	8.4	119
Potato Hill	4510	9.4	1.5	627*	16.0	11.5	139
Paradise	5130	14.1	6.2	227*	23.6	21.4	110
Cayuse Pass	5240	13.6	4.0₍₁₄₎	340*	-M	14.4₍₁₂₎	*
Morse Lake	5410	11.7	4.4	266*	17.5	15.6	112
Pigtail Peak	5800	-M	4.6	*	-M	14.2	*
Basin Index (%)		363*			127
SOUTH PUGET SOUND
Huckleberry Creek	2250	0.1	0.0₍₂₃₎	*	6.9	7.5₍₂₃₎	92
Mowich	3160	-M	0.0₍₂₂₎	*	-M	10.2₍₂₂₎	*
Cougar Mountain	3200	1.5	0.6	250*	16.4	18.2	90
Meadows Pass	3230	2.1	0.7₍₂₇₎	300*	18.7	19.5₍₂₇₎	96
Skate Creek	3770	3.6	N/A	*	21.2	N/A	*
Rex River	3810	2.5	1.1₍₂₅₎	227*	21.9	21.3₍₂₅₎	103
Stampede Pass	3850	2.1	2.2	95*	12.7	16.3	78
Lynn Lake	3900	2.2	0.5₍₁₃₎	440*	17.5	20.6₍₁₃₎	85
Burnt Mountain	4170	1.2	0.7₍₂₁₎	171*	12.4	14.1₍₂₁₎	88
Sawmill Ridge	4640	1.0	0.9₍₁₄₎	111*	9.2	12.5₍₁₄₎	74
Paradise	5130	14.1	6.2	227*	23.6	21.4	110
Cayuse Pass	5240	13.6	4.0₍₁₄₎	340*	-M	14.4₍₁₂₎	*
Morse Lake	5410	11.7	4.4	266*	17.5	15.6	112
Corral Pass	5800	7.3	3.2₍₂₉₎	228*	10.3	10.1₍₂₉₎	102
Basin Index (%)		242*			94
CENTRAL PUGET SOUND
Mount Gardner	2920	1.0	0.1₍₂₇₎	1000*	17.5	20.9₍₂₇₎	84
Tinkham Creek	2990	-M	0.7₍₂₇₎	*	-M	21.6₍₂₇₎	*
Cougar Mountain	3200	1.5	0.6	250*	16.4	18.2	90
Meadows Pass	3230	2.1	0.7₍₂₇₎	300*	18.7	19.5₍₂₇₎	96
Skookum Creek	3310	2.6	0.8₍₂₅₎	325*	29.7	28.0₍₂₅₎	106
Alpine Meadows	3500	3.9	1.8₍₂₆₎	217*	32.5	30.7₍₂₆₎	106
Rex River	3810	2.5	1.1₍₂₅₎	227*	21.9	21.3₍₂₅₎	103
Stevens Pass	3950	4.8	3.2	150*	17.0	19.9	85
Olallie Meadows	4030	5.6	2.6	215*	21.1	24.7	85
Basin Index (%)		220*			95
NORTH PUGET SOUND
Hozomeen Camp	1690	-M	N/A	*	10.3	7.4₍₂₀₎	139
Elbow Lake	3040	5.0	1.3₍₂₅₎	385*	38.6	32.0₍₂₅₎	121
Marten Ridge	3520	9.4	4.6₍₁₄₎	204*	39.5	30.9₍₁₄₎	128
Beaver Pass	3630	5.4	2.2₍₁₉₎	245*	19.9	14.3₍₁₉₎	139
Swamp Creek	3930	-M	1.3₍₂₁₎	*	-M	8.7₍₂₁₎	*
Wells Creek	4030	8.2	2.1₍₂₅₎	390*	21.2	16.6₍₂₅₎	128
Thunder Basin	4320	6.5	3.1	210	17.7	15.4	115
Rainy Pass	4890	4.0	4.1	98	9.7	11.6	84
MF Nooksack	4970	9.6	5.8₍₁₈₎	166*	27.8	24.0₍₁₈₎	116
Easy Pass	5270	22.3	9.2₍₁₁₎	242*	-M	N/A	*
Brown Top	5830	11.1	8.0₍₁₁₎	139	-M	N/A	*
Lyman Lake	5980	11.3	8.7	130	18.2	14.4	126
Harts Pass	6490	7.9	7.9	100	8.0	8.8	91
Basin Index (%)		177*			120
OLYMPIC
Mount Crag	3960	8.6	1.0	860*	18.2	14.4	126
Dungeness	4010	5.3	0.2₍₂₂₎	2650*	12.5	10.0₍₂₂₎	125
Buckinghorse	4870	-M	3.8₍₁₂₎	*	-M	31.9₍₁₂₎	*
Waterhole	5010	7.2	2.6₍₂₁₎	277*	14.9	13.7₍₂₁₎	109
Basin Index (%)		555*			120

-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.