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 Friday, March 28, 2025

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	3190	4.2	6.7₍₂₉₎	63	25.2	27.2₍₂₉₎	93
Ragged Mountain	4210	20.5	20.6₍₁₄₎	100	34.4	32.8₍₁₄₎	105
Humboldt Gulch	4260	11.4	10.4₍₂₉₎	110	27.7	37.5	74
Mica Creek	4480	19.8	20.9	95	33.9	38.7	88
Quartz Peak	4710	24.1	19.0	127	36.8	32.6	113
Lookout	5180	20.0	26.2	76	28.8	37.2	77
Mosquito Ridge	5270	30.7	32.2	95	35.8	41.6	86
Sunset	5580	14.6	21.2	69	20.6	33.4	62
Lost Lake	6090	47.8	50.8	94	52.4	57.0	92
Basin Index (%)		93			87
LOWER PEND OREILLE
Quartz Peak	4710	24.1	19.0	127	36.8	32.6	113
Bunchgrass Mdw	5020	26.0	26.9	97	31.2	34.8	90
Hidden Lake	5000	31.3	34.4₍₂₀₎	91	42.5	53.1₍₂₀₎	80
Mosquito Ridge	5270	30.7	32.2	95	35.8	41.6	86
Schweitzer Basin	6090	51.3	47.4	108	43.2	38.6	112
Basin Index (%)		102			94
UPPER COLUMBIA
Swamp Creek	3930	7.3	18.0₍₂₁₎	41	24.7	35.7₍₂₁₎	69
Gold Mountain	4500	10.2	N/A	*	18.4	N/A	*
Salmon Meadows	4460	10.3	10.0	103	13.4	12.8	105
Muckamuck	4470	6.2	N/A	*	13.1	N/A	*
Sentinel Butte	4680	11.6	8.9₍₁₇₎	130	14.6	11.8₍₁₇₎	124
Rainy Pass	4880	24.0	36.4	66	31.7	45.6	70
Moses Mtn	5470	17.9	15.4₍₂₉₎	116	20.2	16.5₍₂₉₎	122
Gold Axe Camp	5380	10.2	10.4₍₁₀₎	98	13.0	9.7₍₁₀₎	134
Harts Pass	6490	32.5	43.7	74	29.5	37.2	79
Basin Index (%)		80			87
CENTRAL COLUMBIA
Trinity	2900	27.9	30.6₍₁₀₎	91	46.2	55.3₍₁₀₎	84
Fish Lake	3430	17.5	28.6	61	39.2	51.2	77
Pope Ridge	3600	16.0	16.0	100	24.5	27.4	89
Stevens Pass	3940	32.4	35.6	91	56.5	71.2	79
Blewett Pass	4240	9.0	12.7	71	23.7	26.8	88
Upper Wheeler	4330	10.3	11.3	91	18.3	19.2	95
Park Creek Ridge	4610	34.5	45.6	76	47.8	56.6	84
Rainy Pass	4880	24.0	36.4	66	31.7	45.6	70
Grouse Camp	5390	14.9	18.8	79	23.3	25.8	90
Trough	5480	12.5	10.2	123	21.4	19.8	108
Lyman Lake	5990	39.0	59.2	66	53.2	63.0	84
Basin Index (%)		78			84
UPPER YAKIMA
Fish Lake	3430	17.5	28.6	61	39.2	51.2	77
Stampede Pass	3850	24.5	36.1	68	48.2	67.3	72
Olallie Meadows	4010	43.2	47.6	91	71.8	95.5	75
Blewett Pass	4240	9.0	12.7	71	23.7	26.8	88
Sasse Ridge	4340	29.2	30.7	95	39.5	47.9	82
Grouse Camp	5390	14.9	18.8	79	23.3	25.8	90
Trough	5480	12.5	10.2	123	21.4	19.8	108
Basin Index (%)		82			80
NACHES
White Pass E.S.	4440	26.9	21.6	125	39.0	37.2	105
Bumping Ridge	4600	26.6	26.2	102	47.6	50.4	94
Sawmill Ridge	4640	16.7	38.0₍₁₄₎	44	36.2	54.5₍₁₄₎	66
Cayuse Pass	5260	62.6	59.8₍₁₄₎	105	-M	71.8₍₁₁₎	*
Morse Lake	5400	58.6	51.6	114	65.5	66.6	98
Corral Pass	5810	32.5	34.3₍₂₉₎	95	34.7	44.3₍₂₉₎	78
Pigtail Peak	5800	52.0	50.8	102	54.9	64.2	86
Green Lake	5930	26.4	23.2	114	30.0	28.6	105
Basin Index (%)		99			89
LOWER YAKIMA
Satus Pass	3960	11.0	N/A	*	30.8	N/A	*
Lost Horse	5100	15.0	18.0	83	19.5	24.2	81
Indian Rock	5310	7.7	N/A	*	34.3	39.8₍₁₂₎	86
Green Lake	5930	26.4	23.2	114	30.0	28.6	105
Basin Index (%)		100			90
KLICKITAT
Satus Pass	3960	11.0	N/A	*	30.8	N/A	*
Potato Hill	4480	35.7	29.4	121	47.6	50.8	94
Lost Horse	5100	15.0	18.0	83	19.5	24.2	81
Indian Rock	5310	7.7	N/A	*	34.3	39.8₍₁₂₎	86
Green Lake	5930	26.4	23.2	114	30.0	28.6	105
Basin Index (%)		109			92
LOWER SNAKE, WALLA WALLA
Sourdough Gulch	3970	0.0	0.0₍₂₀₎	*	9.1	11.0₍₂₀₎	83
Bowman Springs	4540	9.0	4.8	188	20.1	16.8	120
County Line	4840	1.2	0.1	1200*	16.1	13.0	124
High Ridge	4900	31.1	24.6	126	38.5	37.5	103
Beaver Reservoir	5140	13.4	10.1	133	20.6	19.6	105
Schneider Meadows	5400	45.5	25.4	179	46.1	35.0	132
Touchet	5520	31.9	27.8	115	39.6	43.3	91
Milk Shakes	5580	44.4	38.5₍₁₃₎	115	53.4	54.3₍₁₃₎	98
Wolf Creek	5730	11.9	15.4	77	22.7	20.0	114
Spruce Springs	5690	12.5	12.8₍₁₉₎	98	25.9	26.8₍₂₀₎	97
Taylor Green	5730	29.6	19.2	154	32.1	26.5	121
Moss Springs	5760	-M	24.6	*	-M	34.6	*
Aneroid Lake #2	7430	20.7	21.7	95	30.4	29.4	103
Mt. Howard	7840	15.9	15.3	104	29.0	26.1	111
Basin Index (%)		124			107
LOWER COLUMBIA
Pepper Creek	2140	0.2	5.5₍₁₃₎	4	51.8	49.1₍₁₃₎	105
Calamity	2510	0.0	1.0₍₁₂₎	0	77.1	77.0₍₁₂₎	100
Spencer Meadow	3400	25.8	29.4	88	76.5	77.2	99
June Lake	3440	45.4	39.8	114	119.3	128.9	93
Spirit Lake	3520	6.1	3.0	203	67.3	68.0	99
Skate Creek	3770	35.7	N/A	*	70.0	N/A	*
Lone Pine	3940	44.5	36.9	121	79.2	77.2	103
Sheep Canyon	3990	40.3	34.0	119	124.0	104.6	119
Surprise Lakes	4280	48.7	46.4	105	76.4	82.7	92
Pinto Rock	4450	38.6	N/A	*	53.5	N/A	*
Swift Creek	4440	83.7	66.7₍₁₈₎	125	154.0	123.6₍₁₈₎	125
White Pass E.S.	4440	26.9	21.6	125	39.0	37.2	105
Potato Hill	4480	35.7	29.4	121	47.6	50.8	94
Paradise	5150	64.9	70.3	92	79.1	92.5	86
Cayuse Pass	5260	62.6	59.8₍₁₄₎	105	-M	71.8₍₁₁₎	*
Morse Lake	5400	58.6	51.6	114	65.5	66.6	98
Pigtail Peak	5800	52.0	50.8	102	54.9	64.2	86
Basin Index (%)		109			101
SOUTH PUGET SOUND
Huckleberry Creek	2250	0.0	0.0₍₂₃₎	*	28.0	33.6₍₂₃₎	83
Mowich	3170	0.0	0.1₍₂₂₎	0*	37.6	39.9₍₂₂₎	94
Cougar Mountain	3210	2.6	13.4	19	55.4	70.8	78
Meadows Pass	3230	17.9	27.3₍₂₇₎	66	63.3	74.3₍₂₇₎	85
Skate Creek	3770	35.7	N/A	*	70.0	N/A	*
Rex River	3810	23.8	37.0₍₂₄₎	64	73.2	84.1₍₂₅₎	87
Stampede Pass	3850	24.5	36.1	68	48.2	67.3	72
Lynn Lake	3910	12.8	23.1₍₁₃₎	55	62.4	79.8₍₁₃₎	78
Burnt Mountain	4160	11.3	17.2₍₂₁₎	66	44.9	53.5₍₂₁₎	84
Sawmill Ridge	4640	16.7	38.0₍₁₄₎	44	36.2	54.5₍₁₄₎	66
Paradise	5150	64.9	70.3	92	79.1	92.5	86
Cayuse Pass	5260	62.6	59.8₍₁₄₎	105	-M	71.8₍₁₁₎	*
Morse Lake	5400	58.6	51.6	114	65.5	66.6	98
Corral Pass	5810	32.5	34.3₍₂₉₎	95	34.7	44.3₍₂₉₎	78
Basin Index (%)		80			83
CENTRAL PUGET SOUND
Mount Gardner	2930	0.5	13.2₍₂₇₎	4	59.3	73.9₍₂₇₎	80
Tinkham Creek	3000	17.8	26.2₍₂₇₎	68	65.5	79.8₍₂₇₎	82
Cougar Mountain	3210	2.6	13.4	19	55.4	70.8	78
Meadows Pass	3230	17.9	27.3₍₂₇₎	66	63.3	74.3₍₂₇₎	85
Skookum Creek	3310	24.3	34.2₍₂₅₎	71	93.4	109.0₍₂₅₎	86
Alpine Meadows	3500	32.3	50.0₍₂₆₎	65	100.2	121.2₍₂₆₎	83
Rex River	3810	23.8	37.0₍₂₄₎	64	73.2	84.1₍₂₅₎	87
Stevens Pass	3940	32.4	35.6	91	56.5	71.2	79
Olallie Meadows	4010	43.2	47.6	91	71.8	95.5	75
Basin Index (%)		68			82
NORTH PUGET SOUND
Hozomeen Camp	1680	-M	N/A	*	26.8	33.2₍₂₀₎	81
Elbow Lake	3050	24.3	38.3₍₂₅₎	63	105.1	112.7₍₂₅₎	93
Marten Ridge	3520	42.7	59.6₍₁₄₎	72	105.4	114.7₍₁₄₎	92
Beaver Pass	3630	31.0	42.7₍₁₉₎	73	54.6	60.2₍₁₈₎	91
Swamp Creek	3930	7.3	18.0₍₂₁₎	41	24.7	35.7₍₂₁₎	69
Wells Creek	4030	32.2	34.0₍₂₅₎	95	57.1	59.9₍₂₅₎	95
Thunder Basin	4310	27.9	29.8	94	45.6	54.8	83
Rainy Pass	4880	24.0	36.4	66	31.7	45.6	70
MF Nooksack	4940	44.6	59.9₍₁₈₎	74	76.0	85.3₍₁₈₎	89
Easy Pass	5280	83.2	92.3₍₁₁₎	90	-M	N/A	*
Brown Top	5840	47.4	63.0₍₁₁₎	75	-M	N/A	*
Lyman Lake	5990	39.0	59.2	66	53.2	63.0	84
Harts Pass	6490	32.5	43.7	74	29.5	37.2	79
Basin Index (%)		76			87
OLYMPIC
Mount Crag	3960	35.4	30.2	117	57.7	58.0₍₂₉₎	99
Dungeness	3990	9.8	8.6₍₂₂₎	114	33.4	35.2₍₂₂₎	95
Buckinghorse	4860	50.9	56.8₍₁₂₎	90	94.9	105.0₍₁₂₎	90
Waterhole	5010	32.1	39.7₍₂₁₎	81	50.1	58.8₍₂₁₎	85
Basin Index (%)		95			92

-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.