Washington SNOTEL Snowpack Update Report

Washington 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 Wednesday, April 23, 2025

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
SPOKANE
Sherwin	3190	0.0	0.0₍₂₉₎	9.6₍₂₉₎	Mar 06₍₂₉₎	*	0*
Ragged Mountain	4210	13.6	12.8₍₁₄₎	22.8₍₁₄₎	Apr 01₍₁₄₎	106	60
Humboldt Gulch	4260	8.0	5.3₍₂₉₎	11.7₍₂₉₎	Mar 16₍₂₉₎	151	68
Mica Creek	4480	14.2	15.8	23.0₍₂₉₎	Mar 29₍₂₉₎	90	62
Quartz Peak	4710	12.7	14.6	21.5	Mar 25	87	59
Lookout	5180	18.7	24.7	26.7	Apr 09	76	70
Mosquito Ridge	5270	28.2	31.2₍₂₉₎	34.2₍₂₉₎	Apr 15₍₂₉₎	90	82
Sunset	5580	13.8	20.2	23.0	Apr 15	68	60
Lost Lake	6090	49.2	52.2	55.2	Apr 23	94	89
Basin Index (%)		90
LOWER PEND OREILLE
Quartz Peak	4710	12.7	14.6	21.5	Mar 25	87	59
Bunchgrass Mdw	5020	26.6	27.4	29.3	Apr 17	97	91
Hidden Lake	5000	32.5	32.4₍₂₀₎	36.1₍₂₀₎	Apr 15₍₂₀₎	100	90
Mosquito Ridge	5270	28.2	31.2₍₂₉₎	34.2₍₂₉₎	Apr 15₍₂₉₎	90	82
Schweitzer Basin	6090	57.1	49.4	51.0	Apr 21	116	112
Basin Index (%)		101
UPPER COLUMBIA
Swamp Creek	3930	-M	10.3₍₂₁₎	19.0₍₂₁₎	Mar 20₍₂₁₎	*	*
Gold Mountain	4500	-M	N/A	N/A	N/A	*	*
Salmon Meadows	4460	0.1	4.5	10.5	Mar 27	2	1
Muckamuck	4470	-M	N/A	N/A	N/A	*	*
Sentinel Butte	4680	3.7	6.9₍₁₇₎	10.7₍₁₇₎	Apr 04₍₁₇₎	54	35
Rainy Pass	4880	23.2	36.2	39.6	Apr 18	64	59
Moses Mtn	5470	15.1	12.6₍₂₉₎	16.7₍₂₉₎	Apr 09₍₂₉₎	120	90
Gold Axe Camp	5380	4.7	5.4₍₁₀₎	11.8₍₁₀₎	Apr 05₍₁₀₎	87	40
Harts Pass	6490	35.3	44.4	47.9	Apr 27	80	74
Basin Index (%)		75
CENTRAL COLUMBIA
Trinity	2900	15.3	18.4₍₁₀₎	33.6₍₁₀₎	Mar 19₍₁₀₎	83	46
Fish Lake	3430	10.6	23.8	30.4	Mar 28	45	35
Pope Ridge	3600	3.6	9.4	17.3	Mar 17	38	21
Stevens Pass	3940	26.3	33.3	38.0	Mar 30	79	69
Blewett Pass	4240	-M	3.2	15.0	Mar 12	*	*
Upper Wheeler	4330	4.5	8.2	12.9	Mar 30	55	35
Park Creek Ridge	4610	26.4	41.1	49.2	Apr 10	64	54
Rainy Pass	4880	23.2	36.2	39.6	Apr 18	64	59
Grouse Camp	5390	8.8	14.0	20.2	Mar 28	63	44
Trough	5480	7.1	6.2	11.6	Mar 30	115	61
Lyman Lake	5990	40.0	63.0	66.0	Apr 29	63	61
Basin Index (%)		65
UPPER YAKIMA
Fish Lake	3430	10.6	23.8	30.4	Mar 28	45	35
Stampede Pass	3850	21.2	35.8	38.2	Apr 11	59	55
Olallie Meadows	4010	41.8	52.5	55.9	Apr 17	80	75
Blewett Pass	4240	-M	3.2	15.0	Mar 12	*	*
Sasse Ridge	4340	20.8	27.8	32.0	Apr 07	75	65
Grouse Camp	5390	8.8	14.0	20.2	Mar 28	63	44
Trough	5480	7.1	6.2	11.6	Mar 30	115	61
Basin Index (%)		69
NACHES
White Pass E.S.	4440	22.0	19.8	22.6	Apr 05	111	97
Bumping Ridge	4600	21.1	24.5	28.6	Apr 07	86	74
Sawmill Ridge	4640	11.9	39.2₍₁₄₎	40.3₍₁₄₎	Apr 11₍₁₄₎	30	30
Cayuse Pass	5260	61.2	58.0₍₁₄₎	65.3₍₁₄₎	Apr 19₍₁₄₎	106	94
Morse Lake	5400	54.9	52.8	57.8	Apr 21	104	95
Corral Pass	5810	30.4	37.7₍₂₉₎	38.2₍₂₉₎	Apr 25₍₂₉₎	81	80
Pigtail Peak	5800	50.2	55.6	59.2	Apr 29	90	85
Green Lake	5930	24.1	21.6	25.2	Apr 15	112	96
Basin Index (%)		89
LOWER YAKIMA
Satus Pass	3960	3.0	N/A	N/A	N/A	*	*
Lost Horse	5100	4.9	11.4	19.0	Mar 28	43	26
Indian Rock	5310	0.0	N/A	N/A	N/A	*	*
Green Lake	5930	24.1	21.6	25.2	Apr 15	112	96
Basin Index (%)		88
KLICKITAT
Satus Pass	3960	3.0	N/A	N/A	N/A	*	*
Potato Hill	4480	31.6	27.6	32.0	Apr 03	114	99
Lost Horse	5100	4.9	11.4	19.0	Mar 28	43	26
Indian Rock	5310	0.0	N/A	N/A	N/A	*	*
Green Lake	5930	24.1	21.6	25.2	Apr 15	112	96
Basin Index (%)		100
LOWER SNAKE, WALLA WALLA
Sourdough Gulch	3970	0.0	0.0₍₂₀₎	2.0₍₂₀₎	Jan 22₍₂₀₎	*	0*
Bowman Springs	4540	1.1	0.0	7.4	Mar 04	*	15*
County Line	4840	1.1	0.0	5.0	Feb 27	*	22*
High Ridge	4900	25.6	17.1	25.7	Mar 28	150	100
Beaver Reservoir	5140	3.7	2.0	11.4	Mar 26	185	32
Schneider Meadows	5400	36.3	20.2	27.4	Mar 30	180	132
Touchet	5520	28.6	24.6	30.7	Apr 10	116	93
Milk Shakes	5580	41.6	42.9₍₁₃₎	45.4₍₁₃₎	Apr 19₍₁₃₎	97	92
Wolf Creek	5730	6.9	10.6	16.6	Apr 03	65	42
Spruce Springs	5690	5.4	8.1₍₁₉₎	14.7₍₁₉₎	Mar 30₍₁₉₎	67	37
Taylor Green	5730	21.4	13.0	21.2	Apr 01	165	101
Moss Springs	5760	18.9	21.5	26.4	Apr 09	88	72
Aneroid Lake #2	7430	22.1	24.7	26.0	Apr 30	89	85
Mt. Howard	7840	15.7	18.2	20.6	Apr 25	86	76
Basin Index (%)		113
LOWER COLUMBIA
Pepper Creek	2140	0.0	0.0₍₁₃₎	9.7₍₁₃₎	Mar 03₍₁₃₎	*	0*
Calamity	2510	0.0	0.0₍₁₂₎	5.9₍₁₂₎	Mar 08₍₁₂₎	*	0*
Spencer Meadow	3400	18.8	26.1	32.3	Mar 28	72	58
June Lake	3440	39.9	33.0	45.4	Apr 03	121	88
Spirit Lake	3520	0.0	0.0	11.3	Mar 04	*	0*
Skate Creek	3770	29.8	N/A	N/A	N/A	*	*
Lone Pine	3940	43.7	37.9	41.9	Apr 15	115	104
Sheep Canyon	3990	38.9	31.9	40.0	Apr 07	122	97
Surprise Lakes	4280	45.3	45.0	49.0	Apr 10	101	92
Pinto Rock	4450	35.8	N/A	N/A	N/A	*	*
Swift Creek	4440	88.9	69.4₍₁₈₎	72.5₍₁₈₎	Apr 22₍₁₈₎	128	123
White Pass E.S.	4440	22.0	19.8	22.6	Apr 05	111	97
Potato Hill	4480	31.6	27.6	32.0	Apr 03	114	99
Paradise	5150	70.6	81.0	81.6	May 04	87	87
Cayuse Pass	5260	61.2	58.0₍₁₄₎	65.3₍₁₄₎	Apr 19₍₁₄₎	106	94
Morse Lake	5400	54.9	52.8	57.8	Apr 21	104	95
Pigtail Peak	5800	50.2	55.6	59.2	Apr 29	90	85
Basin Index (%)		105
SOUTH PUGET SOUND
Huckleberry Creek	2250	0.0	0.0₍₂₃₎	3.9₍₂₃₎	Feb 09₍₂₃₎	*	0*
Mowich	3170	0.0	0.0₍₂₂₎	3.8₍₂₂₎	Feb 25₍₂₂₎	*	0*
Cougar Mountain	3210	0.0	9.6	17.7	Mar 22	0	0
Meadows Pass	3230	11.4	18.4₍₂₇₎	30.3₍₂₇₎	Mar 28₍₂₇₎	62	38
Skate Creek	3770	29.8	N/A	N/A	N/A	*	*
Rex River	3810	20.6	30.8₍₂₄₎	40.4₍₂₄₎	Apr 07₍₂₄₎	67	51
Stampede Pass	3850	21.2	35.8	38.2	Apr 11	59	55
Lynn Lake	3910	10.5	24.4₍₁₃₎	29.3₍₁₃₎	Apr 16₍₁₃₎	43	36
Burnt Mountain	4160	9.1	15.0₍₂₁₎	20.0₍₂₁₎	Apr 06₍₂₁₎	61	46
Sawmill Ridge	4640	11.9	39.2₍₁₄₎	40.3₍₁₄₎	Apr 11₍₁₄₎	30	30
Paradise	5150	70.6	81.0	81.6	May 04	87	87
Cayuse Pass	5260	61.2	58.0₍₁₄₎	65.3₍₁₄₎	Apr 19₍₁₄₎	106	94
Morse Lake	5400	54.9	52.8	57.8	Apr 21	104	95
Corral Pass	5810	30.4	37.7₍₂₉₎	38.2₍₂₉₎	Apr 25₍₂₉₎	81	80
Basin Index (%)		75
CENTRAL PUGET SOUND
Mount Gardner	2930	0.1	6.8₍₂₇₎	17.1₍₂₇₎	Mar 16₍₂₇₎	1	1
Tinkham Creek	3000	12.9	22.7₍₂₇₎	28.4₍₂₇₎	Mar 28₍₂₇₎	57	45
Cougar Mountain	3210	0.0	9.6	17.7	Mar 22	0	0
Meadows Pass	3230	11.4	18.4₍₂₇₎	30.3₍₂₇₎	Mar 28₍₂₇₎	62	38
Skookum Creek	3310	20.2	34.3₍₂₄₎	41.2₍₂₄₎	Apr 08₍₂₄₎	59	49
Alpine Meadows	3500	31.9	56.1₍₂₆₎	58.7₍₂₆₎	Apr 19₍₂₆₎	57	54
Rex River	3810	20.6	30.8₍₂₄₎	40.4₍₂₄₎	Apr 07₍₂₄₎	67	51
Stevens Pass	3940	26.3	33.3	38.0	Mar 30	79	69
Olallie Meadows	4010	41.8	52.5	55.9	Apr 17	80	75
Basin Index (%)		62
NORTH PUGET SOUND
Hozomeen Camp	1680	-M	N/A	N/A	N/A	*	*
Elbow Lake	3050	16.5	34.9₍₂₅₎	40.5₍₂₅₎	Apr 01₍₂₅₎	47	41
Marten Ridge	3520	45.0	63.2₍₁₄₎	67.2₍₁₄₎	Apr 16₍₁₄₎	71	67
Beaver Pass	3630	28.4	40.5₍₁₉₎	44.3₍₁₉₎	Apr 09₍₁₉₎	70	64
Swamp Creek	3930	-M	10.3₍₂₁₎	19.0₍₂₁₎	Mar 20₍₂₁₎	*	*
Wells Creek	4030	31.7	30.1₍₂₅₎	35.7₍₂₃₎	Apr 12₍₂₃₎	105	89
Thunder Basin	4310	20.6	26.6	30.4	Apr 06	77	68
Rainy Pass	4880	23.2	36.2	39.6	Apr 18	64	59
MF Nooksack	4940	48.1	67.0₍₁₈₎	72.4₍₁₈₎	May 03₍₁₈₎	72	66
Easy Pass	5280	86.0	99.4₍₁₀₎	103.2₍₁₀₎	Apr 27₍₁₀₎	87	83
Brown Top	5840	48.7	70.4₍₁₁₎	72.6₍₁₁₎	Apr 25₍₁₁₎	69	67
Lyman Lake	5990	40.0	63.0	66.0	Apr 29	63	61
Harts Pass	6490	35.3	44.4	47.9	Apr 27	80	74
Basin Index (%)		74
OLYMPIC
Mount Crag	3960	34.4	27.0	32.4	Apr 09	127	106
Dungeness	3990	0.7	3.1₍₂₁₎	9.9₍₂₁₎	Mar 15₍₂₁₎	23	7
Buckinghorse	4860	49.9	56.2₍₁₂₎	62.7₍₁₂₎	Apr 17₍₁₂₎	89	80
Waterhole	5010	31.7	41.7₍₂₁₎	43.8₍₂₁₎	Apr 21₍₂₁₎	76	72
Basin Index (%)		91

-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.