Columbia River Basin SNOTEL Snow/Precipitation Update Report

Columbia River Basin 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 Saturday, January 10, 2026

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
KOOTENAI RIVER IN MONTANA
Banfield Mountain	5580	8.8	8.4	105	22.2	12.9	172
Bear Mountain	5460	-M	24.6	*	52.7	35.6	148
Garver Creek	4250	4.6	5.8	79	16.8	10.7₍₂₄₎	157
Grave Creek	4350	4.3	8.4	51	31.2	17.2	181
Hand Creek	5030	4.5	5.5	82	12.8	9.2	139
Hawkins Lake	6460	16.7	12.3	136	28.4	17.8	160
Poorman Creek	5050	12.4	16.7₍₂₂₎	74	50.4	31.0₍₂₂₎	163
Stahl Peak	6040	23.4	17.6	133	29.8	21.3	140
Basin Index (%)		100			157
FLATHEAD RIVER BASIN
Ashley Divide	4820	-M	N/A	*	10.2	N/A	*
Badger Pass	6870	23.5	14.9₍₂₉₎	158	27.4	17.3₍₂₉₎	158
Bisson Creek	4880	2.4	4.4₍₂₉₎	55	14.8	8.8₍₂₈₎	168
Blacktail Mtn	5660	-M	5.8₍₁₀₎	*	-M	7.8₍₁₀₎	*
Emery Creek	4340	4.9	7.8	63	19.9	13.8	144
Flattop Mtn.	6280	-M	20.6	*	-M	27.3	*
Grave Creek	4350	4.3	8.4	51	31.2	17.2	181
Hand Creek	5030	4.5	5.5	82	12.8	9.2	139
Kraft Creek	4770	3.2	6.5	49	24.6	14.8	166
Many Glacier	4930	3.4	6.4	53	28.4	16.2	175
Moss Peak	6760	23.0	17.8	129	29.3	19.2	153
Noisy Basin	6070	20.4	20.6	99	27.2	25.1	108
North Fork Jocko	6110	24.2	19.2	126	33.8	27.2	124
Pike Creek	5930	6.0	N/A	*	25.7	N/A	*
Sleeping Woman	6120	7.4	7.2₍₂₉₎	103	20.2	12.1₍₂₈₎	167
Stahl Peak	6040	23.4	17.6	133	29.8	21.3	140
Stuart Mountain	7270	22.7	15.8₍₂₆₎	144	21.6	17.0₍₂₆₎	127
Basin Index (%)		110			146
UPPER CLARK FORK RIVER BASIN
Barker Lakes	8250	5.9	6.6	89	11.2	7.8	144
Basin Creek	7120	2.6	4.0	65	5.2	4.9	106
Black Pine	7170	6.0	5.0	120	10.3	7.0	147
Combination	5620	1.0	2.4	42	8.6	5.4	159
Copper Bottom	5200	3.3	4.8	69	17.4	9.0	193
Copper Camp	6980	22.9	23.5₍₁₇₎	97	29.8	16.2₍₁₇₎	184
Lubrecht Flume	4690	2.6	2.8	93	10.2	6.2	165
Nevada Ridge	7030	9.9	7.0₍₂₆₎	141	12.0	9.2₍₂₆₎	130
N Fk Elk Creek	6180	5.6	5.4	104	12.0	7.4	162
North Fork Jocko	6110	24.2	19.2	126	33.8	27.2	124
Peterson Meadows	7190	5.4	4.7	115	9.5	6.3₍₂₂₎	151
Rocker Peak	7960	8.8	7.0	126	9.9	6.9	143
Skalkaho Summit	7260	12.9	10.4	124	16.4	12.2	134
Stuart Mountain	7270	22.7	15.8₍₂₆₎	144	21.6	17.0₍₂₆₎	127
Warm Springs	7840	14.4	10.1	143	17.2	11.7	147
Basin Index (%)		115			146
BITTERROOT
Daly Creek	5780	5.2	5.0	104	-M	7.5	*
Lolo Pass	5280	10.7	13.0	82	26.9	19.2	140
Moose Creek	6170	8.0	8.6	93	13.9	11.4	122
Nez Perce Camp	5670	6.8	6.7	101	16.6	11.9	139
Saddle Mtn.	7890	13.8	12.9	107	13.8	11.2	123
Skalkaho Summit	7260	12.9	10.4	124	16.4	12.2	134
Twelvemile Creek	5530	-M	8.4	*	-M	18.4	*
Twin Lakes	6380	19.5	19.1	102	35.7	25.3	141
Basin Index (%)		102			135
LOWER CLARK FORK RIVER BASIN
Hoodoo Basin	6060	25.0	19.4	129	37.5	24.8	151
Humboldt Gulch	4260	4.5	7.1₍₂₉₎	63	29.5	20.0	148
Lolo Pass	5280	10.7	13.0	82	26.9	19.2	140
Lookout	5180	7.8	12.2	64	29.3	21.2	138
Poorman Creek	5050	12.4	16.7₍₂₂₎	74	50.4	31.0₍₂₂₎	163
Sleeping Woman	6120	7.4	7.2₍₂₉₎	103	20.2	12.1₍₂₈₎	167
Stuart Mountain	7270	22.7	15.8₍₂₆₎	144	21.6	17.0₍₂₆₎	127
Sunset	5570	6.2	9.7	64	23.9	18.9	126
Basin Index (%)		96			146
IDAHO PANHANDLE REGION
Bear Mountain	5460	-M	24.6	*	52.7	35.6	148
Bunchgrass Mdw	5020	8.5	14.2	60	23.5	19.8	119
Humboldt Gulch	4260	4.5	7.1₍₂₉₎	63	29.5	20.0	148
Lookout	5180	7.8	12.2	64	29.3	21.2	138
Lost Lake	6090	19.6	22.8	86	-M	30.0	*
Mica Creek	4480	4.2	11.4	37	25.8	22.8	113
Mosquito Ridge	5270	10.9	16.5	66	32.1	24.2	133
Quartz Peak	4710	3.8	11.8	32	23.3	18.9	123
Schweitzer Basin	6090	18.6	23.4	79	29.0	21.3	136
Sherwin	3190	2.3	4.8₍₂₉₎	48	19.2	15.3	125
Sunset	5570	6.2	9.7	64	23.9	18.9	126
Basin Index (%)		65			132
COLUMBIA ABOVE METHOW
Bunchgrass Mdw	5020	8.5	14.2	60	23.5	19.8	119
Harts Pass	6490	41.4	22.5	184	34.8	22.4	155
Moses Mtn	5470	2.8	6.5₍₂₉₎	43	8.0	8.7₍₂₉₎	92
Salmon Meadows	4460	2.6	5.4	48	12.1	7.6	159
Basin Index (%)		114			134
CHELAN, ENTIAT, WENATCHEE
Blewett Pass	4240	4.3	7.6	57	24.7	16.0	154
Lyman Lake	5990	32.8	28.2	116	52.5	35.4	148
Park Creek Ridge	4610	20.4	23.0	89	46.5	35.0	133
Pope Ridge	3590	6.6	9.3	71	28.9	18.8	154
Stevens Pass	3940	13.4	18.4	73	61.1	42.6	143
Trough	5480	3.3	6.3	52	17.2	12.3	140
Upper Wheeler	4330	-M	5.9	*	-M	11.8	*
Basin Index (%)		87			144
YAKIMA, AHTANUM
Bumping Ridge	4600	7.4	12.8	58	46.4	31.0	150
Fish Lake	3440	8.6	14.7	59	42.6	32.0	133
Green Lake	5920	10.4	10.7	97	26.2	16.0	164
Grouse Camp	5390	4.2	9.6	44	20.4	14.2	144
Lost Horse	5100	5.0	8.0	62	10.7	14.1	76
Morse Lake	5400	17.5	25.2	69	46.5	39.2	119
Sasse Ridge	4340	7.4	13.9	53	38.7	27.6	140
White Pass E.S.	4440	7.6	10.7	71	35.8	22.6	158
Basin Index (%)		64			136
SNAKE ABOVE PALISADES
Base Camp	7040	10.7	8.6	124	17.1	11.1	154
Blind Bull Sum	8880	16.8	11.0	153	12.8	9.3	138
Cottonwood Creek	7710	12.0	9.2	130	18.8	11.8	159
East Rim Divide	8010	5.4	5.0	108	8.4	5.8	145
Granite Creek	6770	8.8	7.5	117	15.2	10.0	152
Grassy Lake	7330	12.3	14.2	87	21.2	17.8	119
Gros Ventre Summit	8760	9.4	6.9	136	11.6	6.8	171
Lewis Lake Divide	7880	21.1	14.6	145	27.3	17.4	157
Loomis Park	8240	8.9	7.0	127	11.7	8.6	136
Phillips Bench	8170	14.7	11.8	125	19.4	13.4	145
Salt River Summit	7630	7.0	5.6	125	11.4	7.6	150
Spring Creek Divide	9020	14.7	11.0	134	17.5	11.6	151
Togwotee Pass	9590	15.2	12.0	127	19.6	12.4	158
Two Ocean Plateau	9240	23.8	15.1	158	-M	14.3	*
Willow Creek	8060	15.0	12.8	117	22.1	16.2	136
Basin Index (%)		129			146
HENRYS FORK, TETON, WILLOW, BLACKFOOT, PORTNEUF
Black Bear	8160	19.7	18.9	104	24.9	20.0	124
Crab Creek	6870	3.8	5.6	68	11.0	7.6	145
Grassy Lake	7330	12.3	14.2	87	21.2	17.8	119
Island Park	6300	5.8	6.8	85	10.4	9.0	116
Lewis Lake Divide	7880	21.1	14.6	145	27.3	17.4	157
Madison Plateau	7710	13.6	11.0	124	20.0	13.0	154
Phillips Bench	8170	14.7	11.8	125	19.4	13.4	145
Pine Creek Pass	6710	4.7	7.0	67	13.2	10.5	126
Sedgwick Peak	7800	7.0	7.7	91	15.0	9.2	163
Sheep Mtn.	6630	4.4	6.1	72	10.2	8.2	124
Slug Creek Divide	7240	8.1	6.2	131	14.5	9.9	146
Somsen Ranch	6830	4.9	5.6	88	12.7	8.8	144
Whiskey Creek	6790	8.7	7.0	124	17.1	10.8	158
White Elephant	7670	11.7	12.1	97	18.4	15.1	122
Wildhorse Divide	6480	3.8	6.6	58	11.9	9.8	121
Basin Index (%)		102			137
BIG AND LITTLE WOOD BASINS
Camas Creek Divide	5720	1.5	6.0₍₂₈₎	25	12.0	10.1₍₂₈₎	119
Chocolate Gulch	6310	6.8	6.1₍₂₇₎	111	12.8	8.7₍₂₇₎	147
Dollarhide Summit	8390	-M	11.4	*	-M	13.3	*
Galena	7470	10.4	8.8	118	13.8	9.6	144
Galena Summit	8790	13.9	10.0	139	13.9	10.5	132
Garfield R.S.	6580	3.9	4.8	81	12.0	6.5	185
Hyndman	7590	8.2	6.0	137	13.7	8.6	159
Lost-Wood Divide	7870	14.2	9.0	158	16.1	10.2	158
Swede Peak	7640	8.3	6.9	120	14.0	8.4	167
Vienna Mine	8930	21.9	15.1	145	22.8	16.0	142
Basin Index (%)		123			148
BIG AND LITTLE LOST BASINS
Bear Canyon	7920	10.6	7.1	149	16.5	9.0	183
Hilts Creek	8090	8.7	5.9	147	11.7	6.8	172
Lost-Wood Divide	7870	14.2	9.0	158	16.1	10.2	158
Meadow Lake	9190	11.5	7.6	151	13.5	8.8	153
Moonshine	7490	5.7	5.0	114	10.1	6.6	153
Stickney Mill	7440	5.8	4.0	145	10.7	5.6	191
Basin Index (%)		146			167
RAFT, GOOSE, SALMON FALLS, BRUNEAU
Bear Creek	8090	5.2	8.2	63	9.2	11.3	81
Big Bend	6890	0.7	3.9	18	6.2	5.8	107
Bostetter R.S.	7530	4.8	7.2	67	10.7	9.9	108
Howell Canyon	8010	-M	10.2	*	13.2	12.6	105
Magic Mountain	6940	5.2	8.2	63	9.5	10.9	87
Pole Creek R.S.	8370	7.4	9.9	75	7.8	5.8	134
Seventysix Creek	7360	3.1	4.7	66	7.8	7.6	103
Wilson Creek	7110	2.2	6.4	34	9.6	9.0	107
Basin Index (%)		59			102
WEISER, PAYETTE, BOISE
Atlanta Summit	7570	14.3	15.1	95	22.4	17.8	126
Banner Summit	7040	12.5	13.3	94	20.9	16.1	130
Bear Basin	5350	5.3	8.2	65	15.2	12.9	118
Bear Saddle	6170	4.6	10.1	46	10.7	12.8	84
Big Creek Summit	6550	13.5	14.8	91	21.3	19.0	112
Brundage Reservoir	6280	13.3	13.6	98	25.1	20.1	125
Cozy Cove	5410	3.5	6.7	52	15.7	12.4	127
Deadwood Summit	6990	22.6	20.2	112	27.3	22.4	122
Dollarhide Summit	8390	-M	11.4	*	-M	13.3	*
Graham Guard Sta.	5690	3.2	6.4	50	15.6	11.4	137
Jackson Peak	7060	10.9	12.0	91	20.9	18.0	116
Mores Creek Summit	6090	7.7	13.2	58	19.1	17.8	107
Prairie	4800	0.4	3.0	13	8.7	7.8	112
Secesh Summit	6530	16.1	14.8	109	26.3	15.8	166
Puhi Flat	6240	9.7	9.6	101	24.1	15.6	154
Trinity Mtn.	7790	18.0	18.0	100	24.0	21.4	112
Vienna Mine	8930	21.9	15.1	145	22.8	16.0	142
West Branch	5590	9.1	9.5	96	20.4	16.0	128
Basin Index (%)		92			125
OWYHEE MALHEUR
Big Bend	6890	0.7	3.9	18	6.2	5.8	107
Blue Mountain Spring	5880	4.5	7.7	58	12.3	12.8	96
Fawn Creek	7040	0.0	6.4	0	9.0	10.1	89
Jack Creek Upper	7380	1.6	6.4	25	9.1	9.6	95
Jacks Peak	8440	-M	N/A	*	10.2	11.4	89
Lake Creek R.S.	5250	2.9	5.8	50	10.0	10.2	98
Laurel Draw	6680	1.0	5.0	20	8.4	9.2	91
Mud Flat	5750	0.3	3.1	10	3.4	5.9	58
South Mtn.	6650	0.3	6.8	4	12.3	12.4	99
Taylor Canyon	6320	0.1	2.2	5	5.4	4.8	112
Basin Index (%)		24			94
GRAND RONDE, POWDER, BURNT, IMNAHA
Aneroid Lake #2	7430	7.5	9.9	76	18.7	15.1	124
Beaver Reservoir	5140	1.9	4.8	40	11.2	10.8	104
Bourne	5850	3.1	7.7	40	12.5	13.1	95
County Line	4840	0.5	2.8	18	8.5	7.4	115
Eilertson Meadows	5510	3.8	5.7	67	14.0	10.8	130
Gold Center	5400	1.6	5.6	29	9.8	10.0	98
Moss Springs	5760	7.7	12.0	64	19.7	18.9	104
Mt. Howard	7840	7.1	8.2	87	14.8	14.0	106
Schneider Meadows	5400	9.9	13.9	71	18.8	20.0	94
Taylor Green	5730	5.6	9.3	60	12.7	14.4	88
Wolf Creek	5730	2.9	6.9	42	9.9	11.0	90
Basin Index (%)		59			104
CLEARWATER AND SALMON
Banner Summit	7040	12.5	13.3	94	20.9	16.1	130
Beagle Springs	8880	5.4	4.4	123	8.3	5.2	160
Bear Basin	5350	5.3	8.2	65	15.2	12.9	118
Big Creek Summit	6550	13.5	14.8	91	21.3	19.0	112
Brundage Reservoir	6280	13.3	13.6	98	25.1	20.1	125
Cool Creek	6320	17.9	21.3₍₂₉₎	84	33.1	28.7₍₂₉₎	115
Crater Meadows	5960	-M	21.8	*	-M	28.0	*
Darkhorse Lake	8930	17.8	15.4	116	18.8	14.2	132
Deadwood Summit	6990	22.6	20.2	112	27.3	22.4	122
Elk Butte	5680	9.3	16.0	58	25.1	23.6	106
Galena	7470	10.4	8.8	118	13.8	9.6	144
Galena Summit	8790	13.9	10.0	139	13.9	10.5	132
Hemlock Butte	5800	15.3	21.5	71	25.2	N/A	*
Hoodoo Basin	6060	25.0	19.4	129	37.5	24.8	151
Lemhi Ridge	8080	4.8	5.4	89	6.7	6.8	99
Lolo Pass	5280	10.7	13.0	82	26.9	19.2	140
Lost Lake	6090	19.6	22.8	86	-M	30.0	*
Meadow Lake	9190	11.5	7.6	151	13.5	8.8	153
Mill Creek Summit	8780	13.3	9.5₍₂₉₎	140	12.6	9.6	131
Moonshine	7490	5.7	5.0	114	10.1	6.6	153
Moose Creek	6170	8.0	8.6	93	13.9	11.4	122
Morgan Creek	7620	7.4	5.4	137	9.9	8.0	124
Mountain Meadows	6340	9.1	10.5	87	15.5	14.6	106
Nez Perce Camp	5670	6.8	6.7	101	16.6	11.9	139
Saddle Mtn.	7890	13.8	12.9	107	13.8	11.2	123
Savage Pass	6170	12.3	12.2	101	24.2	17.6	138
Secesh Summit	6530	16.1	14.8	109	26.3	15.8	166
Shanghi Summit	4590	5.7	12.2	47	27.8	22.6	123
Sherwin	3190	2.3	4.8₍₂₉₎	48	19.2	15.3	125
Puhi Flat	6240	9.7	9.6	101	24.1	15.6	154
Twelvemile Creek	5530	-M	8.4	*	-M	18.4	*
Twin Lakes	6380	19.5	19.1	102	35.7	25.3	141
Vienna Mine	8930	21.9	15.1	145	22.8	16.0	142
West Branch	5590	9.1	9.5	96	20.4	16.0	128
Basin Index (%)		99			131
UMATILLA, WALLA WALLA, WILLOW
Arbuckle Mtn	5770	2.9	8.3	35	12.8	13.0	98
Bowman Springs	4550	1.1	4.0	28	10.0	9.5	105
Emigrant Springs	3790	0.1	3.0	3	13.2	13.1	101
High Ridge	4900	4.6	11.9	39	21.9	21.0	104
Touchet	5520	7.2	15.2	47	28.7	24.0	120
Basin Index (%)		38			107
DESCHUTES, CROOKED, JOHN DAY
Arbuckle Mtn	5770	2.9	8.3	35	12.8	13.0	98
Blue Mountain Spring	5880	4.5	7.7	58	12.3	12.8	96
Cascade Summit	5100	6.0	15.6	38	24.7	29.0	85
Chemult Alternate	4850	2.2	5.4	41	7.4	10.9	68
Derr.	5850	2.3	6.6	35	9.3	11.1	84
Hogg Pass	4800	5.7	12.2₍₁₇₎	47	29.5	30.8₍₁₇₎	96
Irish Taylor	5540	7.0	15.6	45	23.2	31.1	75
Lucky Strike	4970	0.9	3.8	24	10.7	9.2	116
New Crescent Lake	4910	3.2	6.0	53	17.4	17.3	101
Ochoco Meadows	5430	1.3	5.4	24	8.2	10.0	82
Starr Ridge	5240	0.3	3.4	9	6.4	7.4	86
Three Creeks Meadow	5680	2.2	8.0	28	20.4	18.1	113
Tipton	5150	3.1	5.8	53	7.8	9.4	83
Basin Index (%)		40			90
LOWER COLUMBIA, HOOD RIVER
Madison Butte	5150	0.2	2.7	7	6.4	6.7	96
Blazed Alder	3660	7.2	11.5	63	65.2	56.6	115
Clear Lake	3810	1.9	6.6	29	20.1	19.2	105
Greenpoint	3320	2.8	8.2	34	42.2	34.7	122
North Fork	3070	4.7	7.6	62	82.9	69.1	120
Red Hill	4410	10.8	20.6	52	64.3	51.6	125
Basin Index (%)		48			118
WILLAMETTE
Summit Lake	5610	7.8	17.2	45	24.6	29.4	84
Irish Taylor	5540	7.0	15.6	45	23.2	31.1	75
Cascade Summit	5100	6.0	15.6	38	24.7	29.0	85
Roaring River	4960	3.9	14.0	28	28.2	31.0	91
Holland Meadows	4930	5.2	10.6	49	26.6	34.6	77
Mckenzie	4770	6.5	18.8	35	38.9	42.1	92
Hogg Pass	4800	5.7	12.2₍₁₇₎	47	29.5	30.8₍₁₇₎	96
Salt Creek Falls	4220	2.8	9.5	29	28.8	30.8	94
Mud Ridge	4070	6.3	12.1	52	38.5	31.0	124
Little Meadows	4020	4.8	11.6	41	53.4	53.6	100
Clear Lake	3810	1.9	6.6	29	20.1	19.2	105
Santiam Jct.	3740	2.2	7.6	29	32.9	34.2	96
Daly Lake	3690	2.5	6.6	38	23.2	37.3	62
Jump Off Joe	3530	1.6	5.4	30	36.5	38.0	96
Peavine Ridge	3420	3.6	6.0	60	30.6	29.4	104
Clackamas Lake	3400	2.7	5.8	47	27.7	24.9	111
Saddle Mountain	3090	1.8	0.4	450	53.5	43.6	123
Railroad Overpass	2680	0.4	0.0	*	20.7	23.2	89
Marion Forks	2590	1.0	3.6	28	37.2	35.7	104
Seine Creek	2070	0.3	0.0	*	42.4	32.0	132
Miller Woods	420	0.4	0.0₍₁₄₎	*	29.6	27.8₍₁₄₎	106
Basin Index (%)		42			97
LEWIS, COWLITZ
June Lake	3440	12.6	20.8	61	92.4	76.8	120
Lone Pine	3940	10.8	17.4	62	54.2	44.3	122
Paradise	5150	15.9	32.8	48	71.8	53.8	133
Pigtail Peak	5800	18.7	23.0	81	45.2	33.9	133
Potato Hill	4480	8.8	15.4	57	35.7	30.6	117
Sheep Canyon	3990	10.6	16.2	65	87.2	60.2	145
Spencer Meadow	3400	8.2	15.4	53	53.0	47.0	113
Spirit Lake	3520	4.0	3.2	125	54.1	43.4	125
Lost Horse	5100	5.0	8.0	62	10.7	14.1	76
Surprise Lakes	4280	11.0	23.2	47	58.3	47.8	122
Basin Index (%)		60			124
WHITE, GREEN, CEDAR, SKYKOMISH, SNOQUALMI, BAKER, SKAGIT
Corral Pass	5810	14.2	17.1₍₂₉₎	83	31.2	24.3₍₂₉₎	128
Meadows Pass	3230	9.5	13.1₍₂₇₎	73	65.4	45.5₍₂₇₎	144
Mount Gardner	2930	3.0	9.7₍₂₇₎	31	59.5	44.7₍₂₇₎	133
Tinkham Creek	3000	7.7	13.2₍₂₇₎	58	65.0	47.4₍₂₇₎	137
Cougar Mountain	3210	5.0	7.2	69	59.4	39.5	150
Olallie Meadows	4010	13.3	24.1	55	71.6	52.9	135
Rainy Pass	4880	24.7	18.0	137	-M	27.2	*
Sawmill Ridge	4640	6.5	20.2₍₁₄₎	32	40.0	29.0₍₁₄₎	138
Stampede Pass	3850	9.8	18.1	54	50.9	39.2	130
Thunder Basin	4310	17.4	15.8	110	55.0	34.4	160
Basin Index (%)		71			140

-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.