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 Tuesday, March 31, 2026

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	6.2₍₂₉₎	9.6₍₂₉₎	Mar 06₍₂₉₎	0	0
Ragged Mountain	4210	3.8	20.4₍₁₄₎	22.8₍₁₄₎	Apr 01₍₁₄₎	19	17
Humboldt Gulch	4260	10.9	9.8₍₂₉₎	11.7₍₂₉₎	Mar 16₍₂₉₎	111	93
Mica Creek	4480	9.2	21.4	23.0₍₂₉₎	Mar 29₍₂₉₎	43	40
Quartz Peak	4710	4.5	19.3	21.5	Mar 25	23	21
Lookout	5180	12.2	25.8	26.7	Apr 09	47	46
Mosquito Ridge	5270	18.9	32.4	34.2₍₂₉₎	Apr 15₍₂₉₎	58	55
Sunset	5570	12.9	21.2	23.0	Apr 15	61	56
Lost Lake	6090	39.3	51.4	55.2	Apr 23	76	71
Basin Index (%)		54
LOWER PEND OREILLE
Quartz Peak	4710	4.5	19.3	21.5	Mar 25	23	21
Bunchgrass Mdw	5020	12.6	27.3	29.3	Apr 17	46	43
Hidden Lake	5000	25.4	35.0₍₂₀₎	36.1₍₂₀₎	Apr 15₍₂₀₎	73	70
Mosquito Ridge	5270	18.9	32.4	34.2₍₂₉₎	Apr 15₍₂₉₎	58	55
Schweitzer Basin	6090	33.0	48.0	51.0	Apr 21	69	65
Basin Index (%)		58
UPPER COLUMBIA
Swamp Creek	3930	11.5	17.6₍₂₁₎	19.0₍₂₁₎	Mar 20₍₂₁₎	65	61
Gold Mountain	4500	0.0	N/A	N/A	N/A	*	*
Salmon Meadows	4460	0.1	9.8	10.5	Mar 27	1	1
Muckamuck	4470	0.0	N/A	N/A	N/A	*	*
Sentinel Butte	4680	0.0	9.2₍₁₇₎	10.7₍₁₇₎	Apr 04₍₁₇₎	0	0
Rainy Pass	4880	33.5	37.0	39.6	Apr 18	91	85
Moses Mtn	5470	0.4	14.9₍₂₉₎	16.7₍₂₉₎	Apr 09₍₂₉₎	3	2
Gold Axe Camp	5380	0.0	10.6₍₁₀₎	11.8₍₁₀₎	Apr 05₍₁₀₎	0	0
Harts Pass	6490	57.3	43.8	47.9	Apr 27	131	120
Basin Index (%)		72
CENTRAL COLUMBIA
Trinity	2890	20.4	30.0₍₁₀₎	33.6₍₁₀₎	Mar 19₍₁₀₎	68	61
Fish Lake	3440	13.3	28.9	30.4	Mar 28	46	44
Pope Ridge	3590	4.2	15.6	17.3	Mar 17	27	24
Stevens Pass	3940	23.3	35.9	38.0	Mar 30	65	61
Blewett Pass	4240	0.0	12.8	15.0	Mar 12	0	0
Upper Wheeler	4330	-M	11.4	12.9	Mar 30	*	*
Park Creek Ridge	4610	26.6	47.2	49.2	Apr 10	56	54
Rainy Pass	4880	33.5	37.0	39.6	Apr 18	91	85
Grouse Camp	5390	0.6	19.3	20.2	Mar 28	3	3
Trough	5480	3.6	10.1	11.6	Mar 30	36	31
Lyman Lake	5990	48.1	59.8	66.0	Apr 29	80	73
Basin Index (%)		59
UPPER YAKIMA
Fish Lake	3440	13.3	28.9	30.4	Mar 28	46	44
Stampede Pass	3850	15.1	36.4	38.2	Apr 11	41	40
Olallie Meadows	4010	23.9	51.3	55.9	Apr 17	47	43
Blewett Pass	4240	0.0	12.8	15.0	Mar 12	0	0
Sasse Ridge	4340	11.7	31.2	32.0	Apr 07	38	37
Grouse Camp	5390	0.6	19.3	20.2	Mar 28	3	3
Trough	5480	3.6	10.1	11.6	Mar 30	36	31
Basin Index (%)		36
NACHES
White Pass E.S.	4440	15.6	21.6	22.6	Apr 05	72	69
Bumping Ridge	4600	16.4	26.7	28.6	Apr 07	61	57
Sawmill Ridge	4640	10.0	38.2₍₁₄₎	40.3₍₁₄₎	Apr 11₍₁₄₎	26	25
Cayuse Pass	5260	28.9	61.8₍₁₄₎	65.3₍₁₄₎	Apr 19₍₁₄₎	47	44
Morse Lake	5400	32.4	53.2	57.8	Apr 21	61	56
Corral Pass	5810	27.4	34.6₍₂₉₎	38.2₍₂₉₎	Apr 25₍₂₉₎	79	72
Pigtail Peak	5800	37.4	52.2	59.2	Apr 29	72	63
Green Lake	5920	17.7	23.4	25.2	Apr 15	76	70
Basin Index (%)		60
LOWER YAKIMA
Satus Pass	3960	-M	N/A	N/A	N/A	*	*
Lost Horse	5100	4.6	18.1	19.0	Mar 28	25	24
Indian Rock	5320	0.1	N/A	N/A	N/A	*	*
Green Lake	5920	17.7	23.4	25.2	Apr 15	76	70
Basin Index (%)		54
KLICKITAT
Satus Pass	3960	-M	N/A	N/A	N/A	*	*
Potato Hill	4480	18.1	29.8	32.0	Apr 03	61	57
Lost Horse	5100	4.6	18.1	19.0	Mar 28	25	24
Indian Rock	5320	0.1	N/A	N/A	N/A	*	*
Green Lake	5920	17.7	23.4	25.2	Apr 15	76	70
Basin Index (%)		57
LOWER SNAKE, WALLA WALLA
Sourdough Gulch	3960	0.1	0.0₍₂₀₎	2.0₍₂₀₎	Jan 22₍₂₀₎	*	5*
Bowman Springs	4550	0.0	3.6	7.4	Mar 04	0	0
County Line	4840	0.5	0.0	5.0	Feb 27	*	10*
High Ridge	4900	6.0	24.2	25.7	Mar 28	25	23
Beaver Reservoir	5140	0.0	9.2	11.4	Mar 26	0	0
Schneider Meadows	5400	10.5	24.5	27.4	Mar 30	43	38
Touchet	5520	10.9	29.1	30.7	Apr 10	37	36
Milk Shakes	5580	19.9	39.8₍₁₃₎	45.4₍₁₃₎	Apr 19₍₁₃₎	50	44
Wolf Creek	5730	0.0	15.8	16.6	Apr 03	0	0
Spruce Springs	5690	-M	13.2₍₁₉₎	14.7₍₁₉₎	Mar 30₍₁₉₎	*	*
Taylor Green	5730	1.7	19.2	21.2	Apr 01	9	8
Moss Springs	5760	13.4	24.2	26.4	Apr 09	55	51
Aneroid Lake #2	7430	10.7	22.5	26.0	Apr 30	48	41
Mt. Howard	7840	8.0	15.4	20.6	Apr 25	52	39
Basin Index (%)		36
LOWER COLUMBIA
Pepper Creek	2140	0.1	4.6₍₁₃₎	9.7₍₁₃₎	Mar 03₍₁₃₎	2	1
Calamity	2510	0.2	0.4₍₁₂₎	5.9₍₁₂₎	Mar 08₍₁₂₎	50	3
Spencer Meadow	3400	8.2	29.2	32.3	Mar 28	28	25
June Lake	3440	14.9	40.1	45.4	Apr 03	37	33
Spirit Lake	3520	0.4	1.9	11.3	Mar 04	21	4
Skate Creek	3770	20.2	N/A	N/A	N/A	*	*
Lone Pine	3940	15.0	37.7	41.9	Apr 15	40	36
Sheep Canyon	3990	13.4	33.8	40.0	Apr 07	40	34
Surprise Lakes	4280	22.5	46.2	49.0	Apr 10	49	46
Pinto Rock	4450	15.4	N/A	N/A	N/A	*	*
Swift Creek	4440	26.8	67.9₍₁₈₎	72.5₍₁₈₎	Apr 22₍₁₈₎	39	37
White Pass E.S.	4440	15.6	21.6	22.6	Apr 05	72	69
Potato Hill	4480	18.1	29.8	32.0	Apr 03	61	57
Paradise	5150	36.9	71.9	81.6	May 04	51	45
Cayuse Pass	5260	28.9	61.8₍₁₄₎	65.3₍₁₄₎	Apr 19₍₁₄₎	47	44
Morse Lake	5400	32.4	53.2	57.8	Apr 21	61	56
Pigtail Peak	5800	37.4	52.2	59.2	Apr 29	72	63
Basin Index (%)		49
SOUTH PUGET SOUND
Huckleberry Creek	2250	0.0	0.0₍₂₃₎	3.9₍₂₃₎	Feb 09₍₂₃₎	*	0*
Mowich	3170	-M	0.0₍₂₂₎	3.8₍₂₂₎	Feb 25₍₂₂₎	*	*
Cougar Mountain	3210	4.0	13.0	17.7	Mar 22	31	23
Meadows Pass	3230	13.4	27.4₍₂₇₎	30.3₍₂₇₎	Mar 28₍₂₇₎	49	44
Skate Creek	3770	20.2	N/A	N/A	N/A	*	*
Rex River	3810	14.7	37.3₍₂₄₎	40.4₍₂₄₎	Apr 07₍₂₄₎	39	36
Stampede Pass	3850	15.1	36.4	38.2	Apr 11	41	40
Lynn Lake	3900	6.2	22.8₍₁₃₎	29.3₍₁₃₎	Apr 16₍₁₃₎	27	21
Burnt Mountain	4160	6.8	17.2₍₂₁₎	20.0₍₂₁₎	Apr 06₍₂₁₎	40	34
Sawmill Ridge	4640	10.0	38.2₍₁₄₎	40.3₍₁₄₎	Apr 11₍₁₄₎	26	25
Paradise	5150	36.9	71.9	81.6	May 04	51	45
Cayuse Pass	5260	28.9	61.8₍₁₄₎	65.3₍₁₄₎	Apr 19₍₁₄₎	47	44
Morse Lake	5400	32.4	53.2	57.8	Apr 21	61	56
Corral Pass	5810	27.4	34.6₍₂₉₎	38.2₍₂₉₎	Apr 25₍₂₉₎	79	72
Basin Index (%)		47
CENTRAL PUGET SOUND
Mount Gardner	2930	1.3	12.7₍₂₇₎	17.1₍₂₇₎	Mar 16₍₂₇₎	10	8
Tinkham Creek	3000	11.2	26.9₍₂₇₎	28.4₍₂₇₎	Mar 28₍₂₇₎	42	39
Cougar Mountain	3210	4.0	13.0	17.7	Mar 22	31	23
Meadows Pass	3230	13.4	27.4₍₂₇₎	30.3₍₂₇₎	Mar 28₍₂₇₎	49	44
Skookum Creek	3320	21.5	35.3₍₂₅₎	41.2₍₂₄₎	Apr 08₍₂₄₎	61	52
Alpine Meadows	3500	32.1	52.0₍₂₆₎	58.7₍₂₆₎	Apr 19₍₂₆₎	62	55
Rex River	3810	14.7	37.3₍₂₄₎	40.4₍₂₄₎	Apr 07₍₂₄₎	39	36
Stevens Pass	3940	23.3	35.9	38.0	Mar 30	65	61
Olallie Meadows	4010	23.9	51.3	55.9	Apr 17	47	43
Basin Index (%)		50
NORTH PUGET SOUND
Hozomeen Camp	1680	-M	N/A	N/A	N/A	*	*
Elbow Lake	3050	7.4	40.2₍₂₅₎	40.5₍₂₅₎	Apr 01₍₂₅₎	18	18
Marten Ridge	3520	22.1	64.1₍₁₄₎	67.2₍₁₄₎	Apr 16₍₁₄₎	34	33
Beaver Pass	3630	14.6	42.7₍₁₉₎	44.3₍₁₉₎	Apr 09₍₁₉₎	34	33
Swamp Creek	3930	11.5	17.6₍₂₁₎	19.0₍₂₁₎	Mar 20₍₂₁₎	65	61
Wells Creek	4040	16.4	34.5₍₂₅₎	35.7₍₂₃₎	Apr 12₍₂₃₎	48	46
Thunder Basin	4310	25.0	29.8	30.4	Apr 06	84	82
Rainy Pass	4880	33.5	37.0	39.6	Apr 18	91	85
MF Nooksack	4940	31.0	62.6₍₁₈₎	72.4₍₁₈₎	May 03₍₁₈₎	50	43
Easy Pass	5280	94.3	94.6₍₁₀₎	103.2₍₁₀₎	Apr 27₍₁₀₎	100	91
Brown Top	5850	62.3	64.8₍₁₁₎	72.6₍₁₁₎	Apr 25₍₁₁₎	96	86
Lyman Lake	5990	48.1	59.8	66.0	Apr 29	80	73
Harts Pass	6490	57.3	43.8	47.9	Apr 27	131	120
Basin Index (%)		72
OLYMPIC
Mount Crag	3960	13.9	30.8	32.4	Apr 09	45	43
Dungeness	3990	0.7	7.4₍₂₂₎	9.9₍₂₁₎	Mar 15₍₂₁₎	9	7
Buckinghorse	4850	27.4	57.6₍₁₂₎	62.7₍₁₂₎	Apr 17₍₁₂₎	48	44
Waterhole	5010	17.3	41.6₍₂₁₎	43.8₍₂₁₎	Apr 21₍₂₁₎	42	39
Basin Index (%)		43

-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.