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 Sunday, March 23, 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	6.3	7.3₍₂₉₎	86	24.0	26.5₍₂₉₎	91
Ragged Mountain	4210	22.6	19.9₍₁₄₎	114	33.1	32.0₍₁₄₎	103
Humboldt Gulch	4260	12.3	10.3₍₂₉₎	119	25.8	36.5	71
Mica Creek	4480	20.4	20.9	98	32.7	37.2	88
Quartz Peak	4710	25.2	19.6	129	35.5	32.0	111
Lookout	5180	23.2	25.2	92	27.8	36.7	76
Mosquito Ridge	5270	31.1	31.4	99	33.1	40.2	82
Sunset	5580	17.1	20.6	83	19.7	32.0	62
Lost Lake	6090	47.2	49.1	96	45.4	55.7	82
Basin Index (%)		101			84
LOWER PEND OREILLE
Quartz Peak	4710	25.2	19.6	129	35.5	32.0	111
Bunchgrass Mdw	5020	25.8	26.0	99	29.5	33.7	88
Hidden Lake	5000	32.9	33.6₍₂₀₎	98	40.2	52.4₍₂₀₎	77
Mosquito Ridge	5270	31.1	31.4	99	33.1	40.2	82
Schweitzer Basin	6090	51.8	46.2	112	36.2	37.9	96
Basin Index (%)		106			89
UPPER COLUMBIA
Swamp Creek	3930	9.3	18.0₍₂₁₎	52	22.8	35.5₍₂₁₎	64
Gold Mountain	4500	13.0	N/A	*	18.1	N/A	*
Salmon Meadows	4460	11.8	10.0	118	13.2	12.6	105
Muckamuck	4470	8.4	N/A	*	12.7	N/A	*
Sentinel Butte	4680	13.4	9.2₍₁₇₎	146	14.1	11.8₍₁₇₎	119
Rainy Pass	4880	23.6	36.0	66	29.0	44.6	65
Moses Mtn	5470	19.7	15.0₍₂₉₎	131	19.4	16.3₍₂₉₎	119
Gold Axe Camp	5380	12.0	9.6₍₁₀₎	125	12.6	9.3₍₁₀₎	135
Harts Pass	6490	32.2	43.0	75	28.1	36.8	76
Basin Index (%)		87			83
CENTRAL COLUMBIA
Trinity	2900	29.0	31.0₍₁₀₎	94	44.1	55.0₍₁₀₎	80
Fish Lake	3430	18.7	28.9	65	35.7	50.2	71
Pope Ridge	3600	18.8	16.6	113	23.5	26.8	88
Stevens Pass	3940	33.9	36.0	94	51.3	70.2	73
Blewett Pass	4240	12.4	13.6	91	22.5	26.5	85
Upper Wheeler	4330	10.9	11.0	99	17.7	18.8	94
Park Creek Ridge	4610	23.6	45.6	52	45.0	56.3	80
Rainy Pass	4880	23.6	36.0	66	29.0	44.6	65
Grouse Camp	5390	17.9	18.2	98	22.6	25.3	89
Trough	5480	14.8	10.5	141	20.7	19.4	107
Lyman Lake	5990	40.0	58.6	68	48.7	61.4	79
Basin Index (%)		80			79
UPPER YAKIMA
Fish Lake	3430	18.7	28.9	65	35.7	50.2	71
Stampede Pass	3850	25.8	34.6	75	44.1	65.9	67
Olallie Meadows	4010	45.4	46.4	98	66.8	93.4	72
Blewett Pass	4240	12.4	13.6	91	22.5	26.5	85
Sasse Ridge	4340	31.2	29.4	106	36.9	47.1	78
Grouse Camp	5390	17.9	18.2	98	22.6	25.3	89
Trough	5480	14.8	10.5	141	20.7	19.4	107
Basin Index (%)		92			76
NACHES
White Pass E.S.	4440	27.8	21.2	131	37.1	36.6	101
Bumping Ridge	4600	28.0	25.6	109	45.1	49.4	91
Sawmill Ridge	4640	20.8	36.7₍₁₄₎	57	32.9	53.6₍₁₄₎	61
Cayuse Pass	5260	63.6	58.8₍₁₄₎	108	-M	71.1₍₁₁₎	*
Morse Lake	5400	55.4	50.6	109	62.4	65.8	95
Corral Pass	5810	32.5	32.8₍₂₉₎	99	32.5	43.4₍₂₉₎	75
Pigtail Peak	5800	49.1	48.8	101	49.3	62.4	79
Green Lake	5930	27.3	23.0	119	28.8	28.2	102
Basin Index (%)		102			85
LOWER YAKIMA
Satus Pass	3960	12.8	N/A	*	29.4	N/A	*
Lost Horse	5100	17.6	16.8	105	19.2	23.2	83
Indian Rock	5310	9.8	26.4₍₁₂₎	37	32.8	39.0₍₁₂₎	84
Green Lake	5930	27.3	23.0	119	28.8	28.2	102
Basin Index (%)		83			89
KLICKITAT
Satus Pass	3960	12.8	N/A	*	29.4	N/A	*
Potato Hill	4480	36.2	29.2	124	45.7	49.4	93
Lost Horse	5100	17.6	16.8	105	19.2	23.2	83
Indian Rock	5310	9.8	26.4₍₁₂₎	37	32.8	39.0₍₁₂₎	84
Green Lake	5930	27.3	23.0	119	28.8	28.2	102
Basin Index (%)		95			90
LOWER SNAKE, WALLA WALLA
Sourdough Gulch	3970	0.1	0.0₍₂₀₎	*	8.9	10.8₍₂₀₎	82
Bowman Springs	4540	12.3	5.4	228	19.7	16.3	121
County Line	4840	1.3	0.4	325	16.0	12.7	126
High Ridge	4900	32.4	24.5	132	38.0	36.8	103
Beaver Reservoir	5140	15.3	10.0	153	20.2	18.5	109
Schneider Meadows	5400	43.2	25.1	172	45.2	34.0	133
Touchet	5520	34.6	27.7	125	38.7	42.6	91
Milk Shakes	5580	43.4	37.5₍₁₃₎	116	49.1	53.8₍₁₃₎	91
Wolf Creek	5730	9.8	14.4	68	22.2	19.6	113
Spruce Springs	5690	16.0	12.2₍₁₉₎	131	24.6	26.1₍₂₀₎	94
Taylor Green	5730	30.2	19.0	159	31.7	25.9	122
Moss Springs	5760	-M	23.8	*	-M	33.8	*
Aneroid Lake #2	7430	20.9	20.6	101	30.0	28.1	107
Mt. Howard	7840	16.2	14.4	112	28.7	24.8	116
Basin Index (%)		131			107
LOWER COLUMBIA
Pepper Creek	2140	2.2	7.0₍₁₃₎	31	49.5	48.9₍₁₃₎	101
Calamity	2510	0.8	1.5₍₁₂₎	53	75.0	75.0₍₁₂₎	100
Spencer Meadow	3400	28.0	29.0	97	74.1	75.6	98
June Lake	3440	47.5	37.0	128	115.3	125.6	92
Spirit Lake	3520	11.9	2.2	541	65.3	66.4	98
Skate Creek	3770	38.2	N/A	*	67.0	N/A	*
Lone Pine	3940	45.5	35.8	127	76.1	75.7	101
Sheep Canyon	3990	41.8	34.0	123	119.6	103.6	115
Surprise Lakes	4280	49.4	45.4	109	73.1	80.4	91
Pinto Rock	4450	39.4	N/A	*	52.2	N/A	*
Swift Creek	4440	84.2	63.2₍₁₈₎	133	144.5	121.1₍₁₈₎	119
White Pass E.S.	4440	27.8	21.2	131	37.1	36.6	101
Potato Hill	4480	36.2	29.2	124	45.7	49.4	93
Paradise	5150	66.3	68.4	97	72.3	89.2	81
Cayuse Pass	5260	63.6	58.8₍₁₄₎	108	-M	71.1₍₁₁₎	*
Morse Lake	5400	55.4	50.6	109	62.4	65.8	95
Pigtail Peak	5800	49.1	48.8	101	49.3	62.4	79
Basin Index (%)		115			98
SOUTH PUGET SOUND
Huckleberry Creek	2250	0.0	0.0₍₂₃₎	*	26.1	33.1₍₂₃₎	79
Mowich	3170	1.1	0.2₍₂₂₎	550	35.0	39.2₍₂₂₎	89
Cougar Mountain	3210	6.9	13.7	50	52.2	69.2	75
Meadows Pass	3230	20.5	26.3₍₂₇₎	78	58.8	72.0₍₂₇₎	82
Skate Creek	3770	38.2	N/A	*	67.0	N/A	*
Rex River	3810	27.1	35.4₍₂₄₎	77	68.9	83.1₍₂₅₎	83
Stampede Pass	3850	25.8	34.6	75	44.1	65.9	67
Lynn Lake	3910	16.1	20.5₍₁₃₎	79	58.5	79.8₍₁₃₎	73
Burnt Mountain	4160	13.5	16.3₍₂₁₎	83	41.8	52.0₍₂₁₎	80
Sawmill Ridge	4640	20.8	36.7₍₁₄₎	57	32.9	53.6₍₁₄₎	61
Paradise	5150	66.3	68.4	97	72.3	89.2	81
Cayuse Pass	5260	63.6	58.8₍₁₄₎	108	-M	71.1₍₁₁₎	*
Morse Lake	5400	55.4	50.6	109	62.4	65.8	95
Corral Pass	5810	32.5	32.8₍₂₉₎	99	32.5	43.4₍₂₉₎	75
Basin Index (%)		89			78
CENTRAL PUGET SOUND
Mount Gardner	2930	4.2	13.4₍₂₇₎	31	55.2	72.5₍₂₇₎	76
Tinkham Creek	3000	19.2	24.4₍₂₇₎	79	61.1	77.4₍₂₇₎	79
Cougar Mountain	3210	6.9	13.7	50	52.2	69.2	75
Meadows Pass	3230	20.5	26.3₍₂₇₎	78	58.8	72.0₍₂₇₎	82
Skookum Creek	3310	28.0	33.6₍₂₅₎	83	85.6	107.2₍₂₅₎	80
Alpine Meadows	3500	33.8	47.6₍₂₆₎	71	94.2	118.4₍₂₆₎	80
Rex River	3810	27.1	35.4₍₂₄₎	77	68.9	83.1₍₂₅₎	83
Stevens Pass	3940	33.9	36.0	94	51.3	70.2	73
Olallie Meadows	4010	45.4	46.4	98	66.8	93.4	72
Basin Index (%)		79			78
NORTH PUGET SOUND
Hozomeen Camp	1680	-M	N/A	*	25.2	33.0₍₂₀₎	76
Elbow Lake	3050	25.8	36.1₍₂₅₎	71	97.7	112.2₍₂₅₎	87
Marten Ridge	3520	46.4	57.2₍₁₄₎	81	98.8	113.4₍₁₄₎	87
Beaver Pass	3630	31.0	41.7₍₁₉₎	74	51.8	58.8₍₁₈₎	88
Swamp Creek	3930	9.3	18.0₍₂₁₎	52	22.8	35.5₍₂₁₎	64
Wells Creek	4030	32.1	32.4₍₂₅₎	99	53.9	58.4₍₂₅₎	92
Thunder Basin	4310	27.9	29.2	96	42.0	54.3	77
Rainy Pass	4880	23.6	36.0	66	29.0	44.6	65
MF Nooksack	4940	45.6	58.5₍₁₈₎	78	71.4	84.0₍₁₈₎	85
Easy Pass	5280	80.1	88.1₍₁₁₎	91	-M	N/A	*
Brown Top	5840	46.3	62.0₍₁₁₎	75	-M	N/A	*
Lyman Lake	5990	40.0	58.6	68	48.7	61.4	79
Harts Pass	6490	32.2	43.0	75	28.1	36.8	76
Basin Index (%)		79			82
OLYMPIC
Mount Crag	3960	35.2	28.9	122	55.3	57.3₍₂₉₎	97
Dungeness	3990	12.4	8.7₍₂₂₎	143	31.7	34.0₍₂₂₎	93
Buckinghorse	4860	51.7	54.1₍₁₂₎	96	88.2	104.5₍₁₂₎	84
Waterhole	5010	32.6	38.8₍₂₁₎	84	48.1	58.4₍₂₁₎	82
Basin Index (%)		101			88

-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.