Idaho SNOTEL Snow/Precipitation Update Report

Idaho 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 Thursday, March 30, 2023

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
NORTHERN PANHANDLE REGION
Bear Mountain	5400	38.1	53.8	71	47.4	67.8	70
Bunchgrass Mdw	5000	22.3	27.1	82	25.5	35.0	73
Garver Creek	4250	9.0	9.7	93	13.4	17.4₍₂₄₎	77
Hawkins Lake	6450	21.8	25.8	84	24.6	29.8	83
Hidden Lake	5040	27.1	34.6₍₂₀₎	78	34.0	54.3₍₂₀₎	63
Mosquito Ridge	5260	29.9	32.4	92	32.8	41.8	78
Moyie Mountain	6037	-M	18.7₍₂₃₎	*	-M	N/A	*
Myrtle Creek	3520	3.7	2.7₍₁₇₎	137	15.3	20.4₍₁₇₎	75
Quartz Peak	4700	22.6	19.6	115	31.2	32.6	96
Schweitzer Basin	6090	47.6	48.0	99	28.9	38.8	74
Basin Index (%)		88			75
COEUR D'ALENE-ST. JOE RIVER BASIN
Humboldt Gulch	4250	16.5	10.1₍₂₉₎	163	25.5	38.1	67
Lookout	5190	24.4	26.2	93	27.1	37.8	72
Lost Lake	6110	47.4	50.8	93	44.7	57.3	78
Mica Creek	4510	22.0	21.2	104	32.8	38.9	84
Mosquito Ridge	5260	29.9	32.4	92	32.8	41.8	78
Sherwin	3200	11.3	6.5₍₂₉₎	174	21.1	27.8₍₂₉₎	76
Sunset	5540	18.7	21.3	88	19.3	33.8	57
Basin Index (%)		101			74
CLEARWATER BASIN
Cool Creek	6280	38.2	43.0	89	34.2	52.2	66
Crater Meadows	5960	46.3	47.6	97	42.3	50.8	83
Elk Butte	5690	33.8	33.8	100	30.0	42.2	71
Hemlock Butte	5810	51.6	44.6	116	23.5	47.5	49
Hoodoo Basin	6050	34.0	37.5	91	33.4	45.8	73
Lolo Pass	5240	22.9	27.8	82	24.7	33.9	73
Lost Lake	6110	47.4	50.8	93	44.7	57.3	78
Moscow Mountain	4700	19.1	18.1₍₂₀₎	106	29.4	33.2₍₂₀₎	89
Mountain Meadows	6320	-M	21.0	*	-M	27.0	*
Nez Perce Camp	5650	13.6	13.0	105	14.3	20.0	72
Pierce R.S.	3080	12.5	9.0₍₁₁₎	139	24.6	30.3₍₁₁₎	81
Savage Pass	6190	23.7	26.1	91	24.9	30.6	81
Shanghi Summit	4600	26.5	22.8	116	32.3	40.2	80
Sherwin	3200	11.3	6.5₍₂₉₎	174	21.1	27.8₍₂₉₎	76
Twelvemile Creek	5600	13.2	16.4	80	24.3	33.3	73
Twin Lakes	6400	35.3	38.8	91	35.8	46.0	78
Basin Index (%)		99			74
SALMON BASIN
Banner Summit	7040	28.2	26.0	108	29.5	29.4	100
Bear Basin	5350	19.5	17.0	115	21.7	23.9	91
Big Creek Summit	6560	29.9	31.2	96	22.3	33.4	67
Brundage Reservoir	6250	31.4	30.3	104	28.9	36.1	80
Deadwood Summit	6860	38.3	39.2	98	-M	42.1	*
Galena	7470	19.9	15.2	131	19.1	16.7	114
Galena Summit	8780	24.7	19.0	130	20.2	18.9	107
Lemhi Ridge	8100	11.8	9.8	120	13.0	12.1	107
Meadow Lake	9150	17.9	14.8	121	18.1	15.6	116
Mill Creek Summit	8800	19.9	18.3₍₂₉₎	109	17.5	18.0	97
Moonshine	7440	14.7	9.0	163	15.1	12.2	124
Moose Creek	6200	16.2	15.4	105	16.4	19.3	85
Morgan Creek	7600	13.3	10.0	133	14.6	14.3	102
Mountain Meadows	6320	-M	21.0	*	-M	27.0	*
Saddle Mtn.	7940	21.1	22.9	92	17.9	21.4	84
Schwartz Lake	8630	-M	10.7₍₂₅₎	*	11.9	13.2₍₂₅₎	90
Secesh Summit	6540	33.7	30.3	111	29.0	27.8	104
Squaw Flat	6240	28.3	22.4	126	29.1	30.3	96
Vienna Mine	8960	34.5	30.4	113	33.8	30.2	112
West Branch	5560	20.8	21.0	99	25.6	29.4	87
Basin Index (%)		111			95
WEISER BASIN
Bear Saddle	6180	31.8	20.8	153	-M	25.1	*
Squaw Flat	6240	28.3	22.4	126	29.1	30.3	96
Van Wyck	4920	10.8	1.0₍₁₉₎	1080	15.1	17.5₍₁₉₎	86
West Branch	5560	20.8	21.0	99	25.6	29.4	87
Basin Index (%)		141			90
PAYETTE BASIN
Banner Summit	7040	28.2	26.0	108	29.5	29.4	100
Bear Basin	5350	19.5	17.0	115	21.7	23.9	91
Big Creek Summit	6560	29.9	31.2	96	22.3	33.4	67
Bogus Basin	6340	32.8	23.6₍₂₁₎	139	25.3	21.4₍₂₁₎	118
Brundage Reservoir	6250	31.4	30.3	104	28.9	36.1	80
Cozy Cove	5400	18.9	12.9	147	24.7	22.0	112
Deadwood Summit	6860	38.3	39.2	98	-M	42.1	*
Jackson Peak	7070	29.7	27.0	110	32.3	31.0	104
Long Valley	4890	10.9	2.5₍₁₉₎	436	15.6	15.9₍₁₉₎	98
Secesh Summit	6540	33.7	30.3	111	29.0	27.8	104
Squaw Flat	6240	28.3	22.4	126	29.1	30.3	96
Van Wyck	4920	10.8	1.0₍₁₉₎	1080	15.1	17.5₍₁₉₎	86
Basin Index (%)		119			95
BOISE BASIN
Atlanta Summit	7580	36.7	28.0	131	30.3	30.8	98
Bogus Basin	6340	32.8	23.6₍₂₁₎	139	25.3	21.4₍₂₁₎	118
Camas Creek Divide	5710	-M	11.0₍₂₈₎	*	20.7	16.8₍₂₈₎	123
Couch Summit	6800	23.9	N/A	*	-M	N/A	*
Dollarhide Summit	8420	31.1	22.9	136	19.9	24.0	83
Graham Guard Sta.	5690	16.0	12.3	130	23.0	21.5	107
Jackson Peak	7070	29.7	27.0	110	32.3	31.0	104
Mores Creek Summit	6100	33.6	30.8	109	33.0	35.0	94
Prairie	4800	7.3	0.0	*	15.9	15.1	105
Trinity Mtn.	7770	41.2	34.7	119	40.6	36.5	111
Vienna Mine	8960	34.5	30.4	113	33.8	30.2	112
Basin Index (%)		125			105
BIG WOOD BASIN
Camas Creek Divide	5710	-M	11.0₍₂₈₎	*	20.7	16.8₍₂₈₎	123
Chocolate Gulch	6310	17.8	11.9₍₂₇₎	150	19.2	14.1₍₂₇₎	136
Couch Summit	6800	23.9	N/A	*	-M	N/A	*
Dollarhide Summit	8420	31.1	22.9	136	19.9	24.0	83
Galena	7470	19.9	15.2	131	19.1	16.7	114
Galena Summit	8780	24.7	19.0	130	20.2	18.9	107
Hyndman	7620	16.9	11.8	143	17.6	14.3	123
Lost-Wood Divide	7900	24.8	18.5	134	21.7	19.4	112
Soldier R.S.	5740	17.7	9.2	192	19.0	16.4	116
Basin Index (%)		141			112
LITTLE WOOD BASIN
Bear Canyon	7900	18.4	13.7	134	20.8	16.1	129
Fish Ck	6330	17.6	N/A	*	17.6	N/A	*
Garfield R.S.	6560	16.0	8.2	195	16.7	11.8	142
Smiley Mountain	9520	23.9	17.8₍₁₉₎	134	22.4	17.4₍₁₉₎	129
Swede Peak	7640	20.9	13.4	156	21.8	15.5	141
Basin Index (%)		149			134
BIG LOST BASIN
Bear Canyon	7900	18.4	13.7	134	20.8	16.1	129
Hilts Creek	8000	17.9	12.0	149	17.7	12.2	145
Lost-Wood Divide	7900	24.8	18.5	134	21.7	19.4	112
Smiley Mountain	9520	23.9	17.8₍₁₉₎	134	22.4	17.4₍₁₉₎	129
Stickney Mill	7430	12.3	7.6	162	12.8	10.2	125
Basin Index (%)		140			127
LITTLE LOST
Hilts Creek	8000	17.9	12.0	149	17.7	12.2	145
Meadow Lake	9150	17.9	14.8	121	18.1	15.6	116
Moonshine	7440	14.7	9.0	163	15.1	12.2	124
Basin Index (%)		141			127
BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8850	12.0	9.1	132	-M	9.2	*
Crab Creek	6900	-M	12.9	*	21.2	14.7	144
Lakeview Ridge	7400	14.3	9.8	146	19.7	13.4	147
Meadow Lake	9150	17.9	14.8	121	18.1	15.6	116
Basin Index (%)		131			135
HENRYS FORK, TETON BASINS
Black Bear	8170	44.0	36.8	120	40.6	35.0	116
Grand Targhee	9260	43.6	39.8₍₁₄₎	110	22.8	29.4₍₁₄₎	78
Grassy Lake	7265	33.9	31.4	108	37.2	33.4	111
Island Park	6290	20.0	14.2	141	22.3	17.4	128
Lewis Lake Divide	7850	35.4	29.8	119	30.7	31.8	97
Phillips Bench	8200	29.0	25.9	112	-M	26.1	*
Pine Creek Pass	6720	19.5	14.1	138	23.8	20.9	114
White Elephant	7710	35.3	26.2	135	35.6	27.0	132
Basin Index (%)		119			109
SNAKE BASIN ABOVE PALISADES
Base Camp	7060	18.1	16.3	111	19.5	19.6	99
Blind Bull Sum	8650	24.7	23.6	105	16.8	17.4	97
Cottonwood Creek	7670	24.2	21.3	114	-M	24.3	*
East Rim Divide	7930	12.0	10.3	117	11.5	10.8	106
Granite Creek	6770	18.4	15.6	118	15.3	17.2	89
Grassy Lake	7265	33.9	31.4	108	37.2	33.4	111
Gros Ventre Summit	8750	12.0	12.4	97	10.9	11.8	92
Gunsight Pass	9820	13.5	12.6₍₂₂₎	107	12.7	13.2₍₂₂₎	96
Lewis Lake Divide	7850	35.4	29.8	119	30.7	31.8	97
Loomis Park	8240	16.0	15.3	105	16.0	16.4	98
Phillips Bench	8200	29.0	25.9	112	-M	26.1	*
Salt River Summit	7640	19.1	13.4	143	18.1	15.2	119
Snake River Station	6920	19.8	16.5	120	21.9	21.3	103
Somsen Ranch	6800	19.4	11.6	167	20.8	16.3	128
Spring Creek Divide	9000	26.0	24.0	108	19.0	22.9	83
Thumb Divide	7980	20.0	15.6	128	18.4	16.8	110
Togwotee Pass	9580	21.9	22.8	96	20.2	24.0	84
Triple Peak	8500	23.6	22.4	105	24.0	24.4	98
Two Ocean Plateau	9240	30.1	28.0	108	21.1	25.2	84
Willow Creek	8080	35.6	29.0	123	33.9	31.7	107
Younts Peak	8350	16.0	14.2₍₂₈₎	113	13.0	14.2₍₂₈₎	92
Basin Index (%)		114			99
WILLOW, BLACKFOOT, PORTNEUF BASINS
Oxford Spring	6740	22.3	8.1₍₂₉₎	275	25.5	15.5	165
Pebble Creek	6513	30.9	N/A	*	31.7	N/A	*
Sedgwick Peak	7850	32.9	19.2	171	30.6	19.6	156
Sheep Mtn.	6650	19.1	12.3	155	20.4	15.2	134
Slug Creek Divide	7225	25.4	14.5	175	25.9	19.6	132
Somsen Ranch	6800	19.4	11.6	167	20.8	16.3	128
Wildhorse Divide	6490	-M	15.8	*	25.4	18.8	135
Basin Index (%)		181			142
SNAKE BASIN ABOVE AMERICAN FALLS
Base Camp	7060	18.1	16.3	111	19.5	19.6	99
Black Bear	8170	44.0	36.8	120	40.6	35.0	116
Blind Bull Sum	8650	24.7	23.6	105	16.8	17.4	97
Cottonwood Creek	7670	24.2	21.3	114	-M	24.3	*
East Rim Divide	7930	12.0	10.3	117	11.5	10.8	106
Grand Targhee	9260	43.6	39.8₍₁₄₎	110	22.8	29.4₍₁₄₎	78
Granite Creek	6770	18.4	15.6	118	15.3	17.2	89
Grassy Lake	7265	33.9	31.4	108	37.2	33.4	111
Gros Ventre Summit	8750	12.0	12.4	97	10.9	11.8	92
Gunsight Pass	9820	13.5	12.6₍₂₂₎	107	12.7	13.2₍₂₂₎	96
Island Park	6290	20.0	14.2	141	22.3	17.4	128
Lewis Lake Divide	7850	35.4	29.8	119	30.7	31.8	97
Loomis Park	8240	16.0	15.3	105	16.0	16.4	98
Oxford Spring	6740	22.3	8.1₍₂₉₎	275	25.5	15.5	165
Phillips Bench	8200	29.0	25.9	112	-M	26.1	*
Pine Creek Pass	6720	19.5	14.1	138	23.8	20.9	114
Salt River Summit	7640	19.1	13.4	143	18.1	15.2	119
Sedgwick Peak	7850	32.9	19.2	171	30.6	19.6	156
Sheep Mtn.	6650	19.1	12.3	155	20.4	15.2	134
Slug Creek Divide	7225	25.4	14.5	175	25.9	19.6	132
Snake River Station	6920	19.8	16.5	120	21.9	21.3	103
Somsen Ranch	6800	19.4	11.6	167	20.8	16.3	128
Spring Creek Divide	9000	26.0	24.0	108	19.0	22.9	83
Thumb Divide	7980	20.0	15.6	128	18.4	16.8	110
Togwotee Pass	9580	21.9	22.8	96	20.2	24.0	84
Two Ocean Plateau	9240	30.1	28.0	108	21.1	25.2	84
White Elephant	7710	35.3	26.2	135	35.6	27.0	132
Wildhorse Divide	6490	-M	15.8	*	25.4	18.8	135
Willow Creek	8080	35.6	29.0	123	33.9	31.7	107
Basin Index (%)		123			109
RAFT BASIN
George Creek	8964	29.4	20.6₍₁₀₎	143	-M	19.8₍₁₀₎	*
Howell Canyon	7980	30.6	25.3	121	31.7	26.4	120
Basin Index (%)		131			120
GOOSE CREEK BASIN
Bostetter R.S.	7500	22.8	15.5	147	21.4	17.0	126
Magic Mountain	6880	26.7	18.4	145	22.7	20.9	109
Basin Index (%)		146			116
SALMON FALLS BASIN
Bostetter R.S.	7500	22.8	15.5	147	21.4	17.0	126
Jakes Creek	7380	-M	N/A	*	16.5	N/A	*
Magic Mountain	6880	26.7	18.4	145	22.7	20.9	109
ONeil Creek	6520	14.4	N/A	*	13.4	N/A	*
Pole Creek R.S.	8360	23.5	18.6	126	14.2	10.8	131
Wilson Creek	7120	20.5	12.4	165	18.4	16.4	112
Basin Index (%)		144			118
BRUNEAU BASIN
Bear Creek	8040	26.7	18.2	147	27.0	20.4	132
Big Bend	6898	14.3	7.8	183	-M	9.8	*
Merritt Mountain	6915	-M	N/A	*	10.8	N/A	*
ONeil Creek	6520	14.4	N/A	*	13.4	N/A	*
Pole Creek R.S.	8360	23.5	18.6	126	14.2	10.8	131
Seventysix Creek	7350	-M	8.7	*	16.0	13.1	122
Stag Mountain	7640	-M	N/A	*	8.8	N/A	*
Wilson Creek	7120	20.5	12.4	165	18.4	16.4	112
Basin Index (%)		149			125
OWYHEE BASIN
Big Bend	6898	14.3	7.8	183	-M	9.8	*
Columbia Basin	6483	-M	N/A	*	18.5	N/A	*
Fawn Creek	7031	22.0	15.0	147	19.7	19.8	99
Fry Canyon	6798	5.0	N/A	*	17.6	N/A	*
Jack Creek Upper	7377	21.9	16.0	137	21.5	17.6	122
Jacks Peak	8424	-M	N/A	*	27.2	22.5	121
Laurel Draw	6682	15.4	8.0	192	18.2	16.0	114
Merritt Mountain	6915	-M	N/A	*	10.8	N/A	*
Mud Flat	5730	7.3	2.6	281	9.2	10.2	90
South Mtn.	6500	22.5	13.6	165	25.5	22.2	115
Taylor Canyon	6325	16.2	0.4	4050*	-M	7.6	*
Toe Jam	7690	24.4	14.0₍₁₁₎	174	24.8	15.7₍₁₁₎	158
Basin Index (%)		186			118
BEAR RIVER BASIN
Bear River RS	8777	13.8	9.0₍₁₀₎	153	15.0	11.4₍₁₀₎	132
Bug Lake	7987	28.1	18.2	154	22.8	17.2	133
Burts Miller Ranch	8000	10.1	5.3₍₁₁₎	191	13.4	7.1₍₁₁₎	189
Chalk Creek #1	9171	31.6	22.0	144	-M	22.0	*
Emigrant Summit	7390	35.8	21.6	166	28.0	22.8	123
Franklin Basin	8140	40.4	25.4	159	38.1	27.5	139
Garden City Summit	7705	30.4	19.2₍₁₁₎	158	-M	18.0₍₁₁₎	*
Giveout	6930	15.3	8.1	189	15.0	11.4	132
Hayden Fork	9130	22.7	14.4	158	26.3	19.4	136
Kelley R.S.	8180	19.9	14.6	136	20.2	15.6	129
Klondike Narrows	7250	34.6	20.3₍₁₁₎	170	-M	23.8₍₁₁₎	*
Lily Lake	9133	14.8	12.1	122	16.4	14.3	115
Monte Cristo	8932	39.4	25.8	153	-M	24.6	*
Oxford Spring	6740	22.3	8.1₍₂₉₎	275	25.5	15.5	165
Salt River Summit	7640	19.1	13.4	143	18.1	15.2	119
Sedgwick Peak	7850	32.9	19.2	171	30.6	19.6	156
Slug Creek Divide	7225	25.4	14.5	175	25.9	19.6	132
Spring Creek Divide	9000	26.0	24.0	108	19.0	22.9	83
Tony Grove Lake	8474	51.6	35.0	147	-M	34.7	*
Trial Lake	9992	35.2	21.4	164	33.2	21.2	157
Usu Doc Daniel	8270	39.1	29.0₍₁₃₎	135	-M	28.6₍₁₃₎	*
Basin Index (%)		155			133

-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.

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