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 Wednesday, March 22, 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	37.5	51.8	72	46.4	65.2	71
Bunchgrass Mdw	5000	21.1	25.8	82	24.4	33.0	74
Garver Creek	4250	9.0	9.6	94	13.4	16.8₍₂₄₎	80
Hawkins Lake	6450	21.5	25.0	86	24.4	29.2	84
Hidden Lake	5040	26.4	33.4₍₂₀₎	79	33.2	51.9₍₂₀₎	64
Mosquito Ridge	5260	29.2	31.4	93	32.2	39.9	81
Moyie Mountain	6037	14.9	17.4₍₂₃₎	86₍₂₃₎	-M	N/A	*
Myrtle Creek	3520	5.4	4.7₍₁₇₎	115	15.3	20.0₍₁₇₎	76
Quartz Peak	4700	22.7	19.8	115	30.7	31.6	97
Schweitzer Basin	6090	46.8	46.0	102	28.6	37.6	76
Basin Index (%)		89			76
COEUR D'ALENE-ST. JOE RIVER BASIN
Humboldt Gulch	4250	15.9	10.4₍₂₉₎	153	24.7	36.0	69
Lookout	5190	23.6	25.2	94	26.6	36.0	74
Lost Lake	6110	46.2	48.6	95	44.2	55.6	79
Mica Creek	4510	21.0	21.2	99	31.7	36.6	87
Mosquito Ridge	5260	29.2	31.4	93	32.2	39.9	81
Sherwin	3200	11.2	7.2₍₂₉₎	156	20.3	26.4₍₂₉₎	77
Sunset	5540	17.8	20.6	86	18.3	31.8	58
Basin Index (%)		100			75
CLEARWATER BASIN
Cool Creek	6280	36.5	40.8	89	33.8	50.4	67
Crater Meadows	5960	44.7	45.0	99	40.7	48.4	84
Elk Butte	5690	32.2	32.8	98	29.2	40.2	73
Hemlock Butte	5810	49.9	42.0	119	23.5	45.4	52
Hoodoo Basin	6050	33.0	35.2	94	33.2	44.7	74
Lolo Pass	5240	21.9	26.4	83	23.8	33.0	72
Lost Lake	6110	46.2	48.6	95	44.2	55.6	79
Moscow Mountain	4700	18.3	18.6₍₂₀₎	98	28.2	31.6₍₂₀₎	89
Mountain Meadows	6320	-M	20.2	*	-M	25.8	*
Nez Perce Camp	5650	12.9	13.0	99	13.8	19.2	72
Pierce R.S.	3080	11.7	9.9₍₁₁₎	118	23.4	28.4₍₁₁₎	82
Savage Pass	6190	22.5	24.6	91	23.7	29.6	80
Shanghi Summit	4600	25.6	22.7	113	31.0	37.8	82
Sherwin	3200	11.2	7.2₍₂₉₎	156	20.3	26.4₍₂₉₎	77
Twelvemile Creek	5600	12.5	15.6	80	23.6	32.1	74
Twin Lakes	6400	34.0	37.6	90	34.7	43.8	79
Basin Index (%)		98			75
SALMON BASIN
Banner Summit	7040	26.4	24.6	107	27.7	27.6	100
Bear Basin	5350	18.4	16.3	113	20.2	22.2	91
Big Creek Summit	6560	27.6	28.8	96	-M	31.3	*
Brundage Reservoir	6250	29.9	28.8	104	28.0	33.6	83
Deadwood Summit	6860	36.5	37.3	98	-M	39.6	*
Galena	7470	19.6	15.4	127	18.4	16.4	112
Galena Summit	8780	23.3	18.2	128	-M	17.9	*
Lemhi Ridge	8100	10.8	9.4	115	11.3	11.5	98
Meadow Lake	9150	16.8	13.8	122	16.8	14.7	114
Mill Creek Summit	8800	18.7	17.8₍₂₉₎	105	16.2	16.8	96
Moonshine	7440	13.9	9.0	154	14.5	11.2	129
Moose Creek	6200	14.7	15.4	95	15.1	18.9	80
Morgan Creek	7600	12.0	10.0	120	13.5	13.8	98
Mountain Meadows	6320	-M	20.2	*	-M	25.8	*
Saddle Mtn.	7940	19.3	22.0	88	16.5	20.5	80
Schwartz Lake	8630	-M	9.7₍₂₅₎	*	11.0	12.0₍₂₅₎	92
Secesh Summit	6540	31.8	29.2	109	27.9	26.5	105
Squaw Flat	6240	26.8	21.0	128	27.5	27.8	99
Vienna Mine	8960	33.1	29.8	111	30.7	29.2	105
West Branch	5560	19.4	20.5	95	23.9	28.2	85
Basin Index (%)		109			96
WEISER BASIN
Bear Saddle	6180	29.6	20.4	145	-M	23.4	*
Squaw Flat	6240	26.8	21.0	128	27.5	27.8	99
Van Wyck	4920	8.9	4.3₍₁₉₎	207	13.6	15.8₍₁₉₎	86
West Branch	5560	19.4	20.5	95	23.9	28.2	85
Basin Index (%)		128			91
PAYETTE BASIN
Banner Summit	7040	26.4	24.6	107	27.7	27.6	100
Bear Basin	5350	18.4	16.3	113	20.2	22.2	91
Big Creek Summit	6560	27.6	28.8	96	-M	31.3	*
Bogus Basin	6340	29.8	21.1₍₂₁₎	141	24.0	20.2₍₂₁₎	119
Brundage Reservoir	6250	29.9	28.8	104	28.0	33.6	83
Cozy Cove	5400	17.8	13.6	131	23.7	21.4	111
Deadwood Summit	6860	36.5	37.3	98	-M	39.6	*
Jackson Peak	7070	28.0	24.8	113	31.7	29.2	109
Long Valley	4890	9.8	3.9₍₁₉₎	251	14.8	15.1₍₁₉₎	98
Secesh Summit	6540	31.8	29.2	109	27.9	26.5	105
Squaw Flat	6240	26.8	21.0	128	27.5	27.8	99
Van Wyck	4920	8.9	4.3₍₁₉₎	207	13.6	15.8₍₁₉₎	86
Basin Index (%)		115			100
BOISE BASIN
Atlanta Summit	7580	34.4	27.2	126	30.0	29.0	103
Bogus Basin	6340	29.8	21.1₍₂₁₎	141	24.0	20.2₍₂₁₎	119
Camas Creek Divide	5710	21.5	11.6₍₂₈₎	185	20.2	16.0₍₂₈₎	126
Couch Summit	6800	22.6	N/A	*	-M	N/A	*
Dollarhide Summit	8420	29.0	21.6	134	19.7	23.0	86
Graham Guard Sta.	5690	15.0	11.9	126	21.8	20.7	105
Jackson Peak	7070	28.0	24.8	113	31.7	29.2	109
Mores Creek Summit	6100	31.7	29.2	109	31.4	32.6	96
Prairie	4800	6.6	1.9	347	15.1	13.8	109
Trinity Mtn.	7770	39.0	32.8	119	39.7	34.4	115
Vienna Mine	8960	33.1	29.8	111	30.7	29.2	105
Basin Index (%)		127			107
BIG WOOD BASIN
Camas Creek Divide	5710	21.5	11.6₍₂₈₎	185	20.2	16.0₍₂₈₎	126
Chocolate Gulch	6310	17.0	11.9₍₂₇₎	143	18.4	13.6₍₂₇₎	135
Couch Summit	6800	22.6	N/A	*	-M	N/A	*
Dollarhide Summit	8420	29.0	21.6	134	19.7	23.0	86
Galena	7470	19.6	15.4	127	18.4	16.4	112
Galena Summit	8780	23.3	18.2	128	-M	17.9	*
Hyndman	7620	16.1	11.2	144	16.7	14.0	119
Lost-Wood Divide	7900	23.2	17.4	133	21.0	18.2	115
Soldier R.S.	5740	17.2	10.6	162	18.5	16.1	115
Basin Index (%)		142			113
LITTLE WOOD BASIN
Bear Canyon	7900	17.5	13.0	135	20.4	15.2	134
Fish Ck	6330	16.9	N/A	*	16.8	N/A	*
Garfield R.S.	6560	15.1	8.6	176	16.1	10.6	152
Smiley Mountain	9520	22.3	17.2₍₁₉₎	130	21.0	17.0₍₁₉₎	124
Swede Peak	7640	19.8	12.6	157	20.4	14.4	142
Basin Index (%)		145			136
BIG LOST BASIN
Bear Canyon	7900	17.5	13.0	135	20.4	15.2	134
Hilts Creek	8000	16.6	11.6	143	16.7	11.7	143
Lost-Wood Divide	7900	23.2	17.4	133	21.0	18.2	115
Smiley Mountain	9520	22.3	17.2₍₁₉₎	130	21.0	17.0₍₁₉₎	124
Stickney Mill	7430	11.6	7.6	153	12.2	9.2	133
Basin Index (%)		137			128
LITTLE LOST
Hilts Creek	8000	16.6	11.6	143	16.7	11.7	143
Meadow Lake	9150	16.8	13.8	122	16.8	14.7	114
Moonshine	7440	13.9	9.0	154	14.5	11.2	129
Basin Index (%)		138			128
BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8850	11.0	8.3	133	10.4	8.5	122
Crab Creek	6900	-M	12.0	*	20.9	13.6	154
Lakeview Ridge	7400	13.3	9.5	140	18.9	12.4	152
Meadow Lake	9150	16.8	13.8	122	16.8	14.7	114
Basin Index (%)		130			136
HENRYS FORK, TETON BASINS
Black Bear	8170	41.0	36.1	114	37.9	33.4	113
Grand Targhee	9260	39.5	37.6₍₁₄₎	105	-M	28.2₍₁₄₎	*
Grassy Lake	7265	31.7	29.8	106	34.7	32.2	108
Island Park	6290	18.6	13.8	135	21.0	16.7	126
Lewis Lake Divide	7850	33.4	29.0	115	-M	30.0	*
Phillips Bench	8200	27.5	23.8	116	25.8	24.2	107
Pine Creek Pass	6720	18.1	14.1	128	22.3	20.0	112
White Elephant	7710	33.3	24.0	139	34.0	26.0	131
Basin Index (%)		117			115
SNAKE BASIN ABOVE PALISADES
Base Camp	7060	16.5	16.2	102	18.0	18.8	96
Blind Bull Sum	8650	23.2	22.4	104	15.9	16.8	95
Cottonwood Creek	7670	22.2	19.8	112	23.4	22.7	103
East Rim Divide	7930	11.1	10.0	111	10.7	10.3	104
Granite Creek	6770	-M	15.8	*	-M	16.9	*
Grassy Lake	7265	31.7	29.8	106	34.7	32.2	108
Gros Ventre Summit	8750	11.0	11.5	96	10.1	11.2	90
Gunsight Pass	9820	12.1	12.1₍₂₂₎	100	11.4	12.7₍₂₂₎	90
Lewis Lake Divide	7850	33.4	29.0	115	-M	30.0	*
Loomis Park	8240	14.8	14.1	105	15.0	15.6	96
Phillips Bench	8200	27.5	23.8	116	25.8	24.2	107
Salt River Summit	7640	17.9	12.2	147	17.0	13.8	123
Snake River Station	6920	18.5	16.6	111	20.3	20.0	102
Somsen Ranch	6800	17.8	11.6	153	19.0	14.7	129
Spring Creek Divide	9000	24.4	22.6	108	17.6	22.0	80
Thumb Divide	7980	19.0	14.8	128	17.6	15.6	113
Togwotee Pass	9580	20.2	21.6	94	18.7	22.6	83
Triple Peak	8500	22.4	21.8	103	22.9	23.5	97
Two Ocean Plateau	9240	28.6	26.6	108	-M	23.6	*
Willow Creek	8080	33.3	27.2	122	31.7	30.1	105
Younts Peak	8350	15.2	13.7₍₂₈₎	111	12.4	13.4₍₂₈₎	93
Basin Index (%)		111			101
WILLOW, BLACKFOOT, PORTNEUF BASINS
Oxford Spring	6740	19.9	8.7₍₂₉₎	229	23.2	14.6	159
Pebble Creek	6513	28.5	N/A	*	29.9	N/A	*
Sedgwick Peak	7850	29.7	17.8	167	28.4	18.3	155
Sheep Mtn.	6650	16.9	13.0	130	18.9	14.8	128
Slug Creek Divide	7225	23.3	13.5	173	23.9	18.0	133
Somsen Ranch	6800	17.8	11.6	153	19.0	14.7	129
Wildhorse Divide	6490	21.5	14.2	151	23.4	18.1	129
Basin Index (%)		164			139
SNAKE BASIN ABOVE AMERICAN FALLS
Base Camp	7060	16.5	16.2	102	18.0	18.8	96
Black Bear	8170	41.0	36.1	114	37.9	33.4	113
Blind Bull Sum	8650	23.2	22.4	104	15.9	16.8	95
Cottonwood Creek	7670	22.2	19.8	112	23.4	22.7	103
East Rim Divide	7930	11.1	10.0	111	10.7	10.3	104
Grand Targhee	9260	39.5	37.6₍₁₄₎	105	-M	28.2₍₁₄₎	*
Granite Creek	6770	-M	15.8	*	-M	16.9	*
Grassy Lake	7265	31.7	29.8	106	34.7	32.2	108
Gros Ventre Summit	8750	11.0	11.5	96	10.1	11.2	90
Gunsight Pass	9820	12.1	12.1₍₂₂₎	100	11.4	12.7₍₂₂₎	90
Island Park	6290	18.6	13.8	135	21.0	16.7	126
Lewis Lake Divide	7850	33.4	29.0	115	-M	30.0	*
Loomis Park	8240	14.8	14.1	105	15.0	15.6	96
Oxford Spring	6740	19.9	8.7₍₂₉₎	229	23.2	14.6	159
Phillips Bench	8200	27.5	23.8	116	25.8	24.2	107
Pine Creek Pass	6720	18.1	14.1	128	22.3	20.0	112
Salt River Summit	7640	17.9	12.2	147	17.0	13.8	123
Sedgwick Peak	7850	29.7	17.8	167	28.4	18.3	155
Sheep Mtn.	6650	16.9	13.0	130	18.9	14.8	128
Slug Creek Divide	7225	23.3	13.5	173	23.9	18.0	133
Snake River Station	6920	18.5	16.6	111	20.3	20.0	102
Somsen Ranch	6800	17.8	11.6	153	19.0	14.7	129
Spring Creek Divide	9000	24.4	22.6	108	17.6	22.0	80
Thumb Divide	7980	19.0	14.8	128	17.6	15.6	113
Togwotee Pass	9580	20.2	21.6	94	18.7	22.6	83
Two Ocean Plateau	9240	28.6	26.6	108	-M	23.6	*
White Elephant	7710	33.3	24.0	139	34.0	26.0	131
Wildhorse Divide	6490	21.5	14.2	151	23.4	18.1	129
Willow Creek	8080	33.3	27.2	122	31.7	30.1	105
Basin Index (%)		121			112
RAFT BASIN
George Creek	8964	27.6	18.8₍₁₀₎	147	25.1	18.9₍₁₀₎	133
Howell Canyon	7980	27.3	24.8	110	28.6	25.2	113
Basin Index (%)		126			122
GOOSE CREEK BASIN
Bostetter R.S.	7500	20.6	14.8	139	19.6	16.1	122
Magic Mountain	6880	23.7	18.5	128	20.6	19.8	104
Basin Index (%)		133			112
SALMON FALLS BASIN
Bostetter R.S.	7500	20.6	14.8	139	19.6	16.1	122
Jakes Creek	7380	-M	N/A	*	15.7	N/A	*
Magic Mountain	6880	23.7	18.5	128	20.6	19.8	104
ONeil Creek	6520	13.4	N/A	*	12.7	N/A	*
Pole Creek R.S.	8360	21.5	17.9	120	13.2	10.0	132
Wilson Creek	7120	18.5	12.8	145	16.6	15.2	109
Basin Index (%)		132			115
BRUNEAU BASIN
Bear Creek	8040	24.2	17.6	138	24.7	19.2	129
Big Bend	6898	13.1	8.3	158	12.8	9.6	133
Merritt Mountain	6915	-M	N/A	*	9.6	N/A	*
ONeil Creek	6520	13.4	N/A	*	12.7	N/A	*
Pole Creek R.S.	8360	21.5	17.9	120	13.2	10.0	132
Seventysix Creek	7350	13.7	8.6	159	15.0	12.8	117
Stag Mountain	7640	-M	N/A	*	8.1	N/A	*
Wilson Creek	7120	18.5	12.8	145	16.6	15.2	109
Basin Index (%)		140			123
OWYHEE BASIN
Big Bend	6898	13.1	8.3	158	12.8	9.6	133
Columbia Basin	6483	-M	N/A	*	16.7	N/A	*
Fawn Creek	7031	19.9	13.8	144	18.1	18.8	96
Fry Canyon	6798	4.4	N/A	*	16.5	N/A	*
Jack Creek Upper	7377	19.8	14.8	134	19.9	16.6	120
Jacks Peak	8424	-M	N/A	*	24.9	21.7	115
Laurel Draw	6682	14.4	8.1	178	17.0	15.5	110
Merritt Mountain	6915	-M	N/A	*	9.6	N/A	*
Mud Flat	5730	6.9	3.8	182	8.7	9.9	88
South Mtn.	6500	20.3	13.7	148	23.8	20.4	117
Taylor Canyon	6325	15.6	3.2	488	13.9	7.0	199
Toe Jam	7690	22.4	13.6₍₁₁₎	165	23.3	15.0₍₁₁₎	155
Basin Index (%)		167			121
BEAR RIVER BASIN
Bear River RS	8777	13.3	8.0₍₁₀₎	166	14.3	10.2₍₁₀₎	140
Bug Lake	7987	26.1	16.9	154	21.5	15.9	135
Burts Miller Ranch	8000	9.2	5.3₍₁₁₎	174	12.7	6.7₍₁₁₎	190
Chalk Creek #1	9171	28.7	20.9	137	27.4	20.6	133
Emigrant Summit	7390	32.8	19.6	167	27.6	21.4	129
Franklin Basin	8140	37.0	23.4	158	35.8	25.5	140
Garden City Summit	7705	28.5	16.4₍₁₁₎	174	25.1	16.6₍₁₁₎	151
Giveout	6930	13.8	7.7	179	14.0	10.7	131
Hayden Fork	9130	20.0	13.0	154	24.1	18.2	132
Kelley R.S.	8180	18.8	13.3	141	19.2	14.6	132
Klondike Narrows	7250	31.5	18.3₍₁₁₎	172	32.8	21.6₍₁₁₎	152
Lily Lake	9133	14.8	11.1	133	15.6	13.8	113
Monte Cristo	8932	35.6	24.4	146	32.6	22.2	147
Oxford Spring	6740	19.9	8.7₍₂₉₎	229	23.2	14.6	159
Salt River Summit	7640	17.9	12.2	147	17.0	13.8	123
Sedgwick Peak	7850	29.7	17.8	167	28.4	18.3	155
Slug Creek Divide	7225	23.3	13.5	173	23.9	18.0	133
Spring Creek Divide	9000	24.4	22.6	108	17.6	22.0	80
Tony Grove Lake	8474	47.6	33.0	144	46.6	31.0	150
Trial Lake	9992	32.4	19.7	164	31.1	20.0	156
Usu Doc Daniel	8270	36.7	25.0₍₁₃₎	147	36.8	25.5₍₁₃₎	144
Basin Index (%)		155			138

-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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