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 Saturday, September 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	0.0	0.0	*	64.2	93.0	69
Bunchgrass Mdw	5000	0.0	0.0	*	48.1	54.1	89
Garver Creek	4250	0.0	0.0	*	23.5	27.3₍₂₄₎	86
Hawkins Lake	6450	0.0	0.0	*	43.8	47.1	93
Hidden Lake	5040	-M	0.0₍₂₀₎	*	57.2	76.0₍₂₀₎	75
Mosquito Ridge	5260	0.2	0.0	*	-M	57.9	*
Moyie Mountain	6037	-M	0.0₍₂₂₎	*	-M	N/A	*
Myrtle Creek	3520	0.0	0.0₍₁₇₎	*	25.6	29.6₍₁₇₎	86
Quartz Peak	4700	0.1	0.0	*	43.6	48.2	90
Schweitzer Basin	6090	0.1	0.0	*	44.1	54.2	81
Basin Index (%)		*			82
COEUR D'ALENE-ST. JOE RIVER BASIN
Humboldt Gulch	4250	0.0	0.0	*	38.3	52.0	74
Lookout	5190	0.0	0.0	*	37.6	49.2	76
Lost Lake	6110	0.0	0.0	*	67.1	77.9	86
Mica Creek	4510	0.0	0.0	*	46.4	55.6	83
Mosquito Ridge	5260	0.2	0.0	*	-M	57.9	*
Sherwin	3200	0.0	0.0	*	31.6	38.6₍₂₉₎	82
Sunset	5540	0.3	0.0	*	32.7	51.4	64
Basin Index (%)		*			78
CLEARWATER BASIN
Cool Creek	6280	0.0	0.0	*	54.5	69.3	79
Crater Meadows	5960	-M	0.0	*	65.5	72.0	91
Elk Butte	5690	0.0	0.0	*	44.2	56.3	79
Hemlock Butte	5810	-M	0.0	*	-M	65.6	*
Hoodoo Basin	6050	0.1	0.0	*	53.3	62.4	85
Lolo Pass	5240	-M	0.0	*	39.6	47.2	84
Lost Lake	6110	0.0	0.0	*	67.1	77.9	86
Moscow Mountain	4700	0.1	0.0₍₂₀₎	*	38.9	44.4₍₂₀₎	88
Mountain Meadows	6320	-M	0.0	*	45.6	44.7	102
Nez Perce Camp	5650	0.0	0.0	*	27.8	32.6	85
Pierce R.S.	3080	-M	0.0₍₁₂₎	*	37.7	43.5₍₁₁₎	87
Savage Pass	6190	-M	0.0	*	41.7	46.8	89
Shanghi Summit	4600	0.0	0.0	*	48.2	57.0	85
Sherwin	3200	0.0	0.0	*	31.6	38.6₍₂₉₎	82
Twelvemile Creek	5600	0.0	0.0	*	38.4	48.1	80
Twin Lakes	6400	0.0	0.0	*	54.3	65.1	83
Basin Index (%)		*			85
SALMON BASIN
Banner Summit	7040	0.0	0.0	*	44.6	41.8	107
Bear Basin	5350	-M	0.0	*	32.2	35.6	90
Big Creek Summit	6560	-M	0.0	*	37.9	45.3	84
Brundage Reservoir	6250	0.3	0.0	*	42.5	52.0	82
Deadwood Summit	6860	0.0	0.0	*	53.2	54.2	98
Galena	7470	0.1	0.0	*	31.5	25.8	122
Galena Summit	8780	0.0	0.0	*	37.5	28.6	131
Lemhi Ridge	8100	0.0	0.0	*	30.0	25.1	120
Meadow Lake	9150	0.1	0.0	*	37.0	31.0	119
Mill Creek Summit	8800	0.1	0.0	*	31.9	28.2	113
Moonshine	7440	0.0	0.0	*	30.1	21.3	141
Moose Creek	6200	0.4	0.0	*	32.5	30.6	106
Morgan Creek	7600	-M	0.0	*	30.3	23.0	132
Mountain Meadows	6320	-M	0.0	*	45.6	44.7	102
Saddle Mtn.	7940	0.0	0.0	*	31.7	35.3	90
Schwartz Lake	8630	0.2	0.0₍₂₆₎	*	30.6	26.3₍₂₅₎	116
Secesh Summit	6540	-M	0.0	*	43.2	40.3	107
Puhi Flat	6240	0.2	0.0	*	43.6	43.6	100
Vienna Mine	8960	0.1	0.0	*	51.6	42.0	123
West Branch	5560	-M	0.0	*	39.3	41.6	94
Basin Index (%)		*			106
WEISER BASIN
Bear Saddle	6180	0.1	0.0	*	40.7	33.6	121
Puhi Flat	6240	0.2	0.0	*	43.6	43.6	100
Van Wyck	4920	0.8	0.0₍₂₀₎	*	25.8	25.3₍₁₉₎	102
West Branch	5560	-M	0.0	*	39.3	41.6	94
Basin Index (%)		*			104
PAYETTE BASIN
Banner Summit	7040	0.0	0.0	*	44.6	41.8	107
Bear Basin	5350	-M	0.0	*	32.2	35.6	90
Big Creek Summit	6560	-M	0.0	*	37.9	45.3	84
Bogus Basin	6340	-M	0.0₍₂₂₎	*	38.6	29.6₍₂₁₎	130
Brundage Reservoir	6250	0.3	0.0	*	42.5	52.0	82
Cozy Cove	5400	0.0	0.0	*	34.4	31.4	110
Deadwood Summit	6860	0.0	0.0	*	53.2	54.2	98
Jackson Peak	7070	-M	0.0	*	48.0	44.5	108
Long Valley	4890	-M	0.0₍₁₉₎	*	25.9	23.9₍₁₉₎	108
Secesh Summit	6540	-M	0.0	*	43.2	40.3	107
Puhi Flat	6240	0.2	0.0	*	43.6	43.6	100
Van Wyck	4920	0.8	0.0₍₂₀₎	*	25.8	25.3₍₁₉₎	102
Basin Index (%)		*			101
BOISE BASIN
Atlanta Summit	7580	0.0	0.0	*	-M	43.1	*
Bogus Basin	6340	-M	0.0₍₂₂₎	*	38.6	29.6₍₂₁₎	130
Camas Creek Divide	5710	-M	0.0₍₂₉₎	*	27.0	23.0₍₂₈₎	117
Couch Summit	6800	0.1	N/A	*	36.7	N/A	*
Dollarhide Summit	8420	0.1	0.0	*	36.3	32.9	110
Graham Guard Sta.	5690	0.0	0.0	*	33.2	29.5	113
Jackson Peak	7070	-M	0.0	*	48.0	44.5	108
Mores Creek Summit	6100	-M	0.0	*	47.9	44.4	108
Prairie	4800	0.1	0.0	*	25.0	21.2	118
Trinity Mtn.	7770	-M	0.0	*	57.1	46.1	124
Vienna Mine	8960	0.1	0.0	*	51.6	42.0	123
Basin Index (%)		*			116
BIG WOOD BASIN
Camas Creek Divide	5710	-M	0.0₍₂₉₎	*	27.0	23.0₍₂₈₎	117
Chocolate Gulch	6310	0.4	0.0₍₂₈₎	*	31.4	22.0₍₂₇₎	143
Couch Summit	6800	0.1	N/A	*	36.7	N/A	*
Dollarhide Summit	8420	0.1	0.0	*	36.3	32.9	110
Galena	7470	0.1	0.0	*	31.5	25.8	122
Galena Summit	8780	0.0	0.0	*	37.5	28.6	131
Hyndman	7620	0.0	0.0	*	30.7	24.4	126
Lost-Wood Divide	7900	0.2	0.0	*	36.6	28.1	130
Soldier R.S.	5740	0.0	0.0	*	27.7	22.3	124
Basin Index (%)		*			125
LITTLE WOOD BASIN
Bear Canyon	7900	0.2	0.0	*	38.1	26.6	143
Fish Ck	6330	-M	N/A	*	28.3	N/A	*
Garfield R.S.	6560	0.0	0.0	*	26.4	19.6	135
Smiley Mountain	9520	-M	0.0₍₂₀₎	*	41.3	31.2₍₁₉₎	132
Swede Peak	7640	0.0	0.0	*	35.2	24.8	142
Basin Index (%)		*			138
BIG LOST BASIN
Bear Canyon	7900	0.2	0.0	*	38.1	26.6	143
Hilts Creek	8000	0.0	0.0	*	37.0	21.8	170
Lost-Wood Divide	7900	0.2	0.0	*	36.6	28.1	130
Smiley Mountain	9520	-M	0.0₍₂₀₎	*	41.3	31.2₍₁₉₎	132
Stickney Mill	7430	0.1	0.0	*	25.1	18.7	134
Basin Index (%)		*			141
LITTLE LOST
Hilts Creek	8000	0.0	0.0	*	37.0	21.8	170
Meadow Lake	9150	0.1	0.0	*	37.0	31.0	119
Moonshine	7440	0.0	0.0	*	30.1	21.3	141
Basin Index (%)		*			140
BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8850	0.0	0.0	*	22.7	23.2	98
Crab Creek	6900	-M	0.0	*	35.3	26.3	134
Lakeview Ridge	7400	0.0	0.0	*	34.2	26.7	128
Meadow Lake	9150	0.1	0.0	*	37.0	31.0	119
Basin Index (%)		*			121
HENRYS FORK, TETON BASINS
Black Bear	8170	0.0	0.0	*	59.5	54.0	110
Grand Targhee	9260	-M	0.0₍₁₄₎	*	49.1	50.6₍₁₄₎	97
Grassy Lake	7265	-M	0.0	*	56.1	50.7	111
Island Park	6290	0.0	0.0	*	32.9	28.0	118
Lewis Lake Divide	7850	0.1	0.0	*	56.4	48.6	116
Phillips Bench	8200	0.2	0.0	*	41.2	40.8	101
Pine Creek Pass	6720	-M	0.0	*	39.9	33.3	120
White Elephant	7710	0.1	0.0	*	53.2	44.5	120
Basin Index (%)		*			111
SNAKE BASIN ABOVE PALISADES
Base Camp	7060	-M	0.0	*	33.2	32.7	102
Blind Bull Sum	8650	0.1	0.0	*	31.3	29.2	107
Cottonwood Creek	7670	0.1	0.0	*	46.3	39.4	118
East Rim Divide	7930	-M	0.0	*	24.8	19.3	128
Granite Creek	6770	0.0	0.0	*	24.6	30.6	80
Grassy Lake	7265	-M	0.0	*	56.1	50.7	111
Gros Ventre Summit	8750	-M	0.0	*	22.9	22.6	101
Gunsight Pass	9820	0.2	0.0₍₂₂₎	*	28.4	25.0₍₂₂₎	114
Lewis Lake Divide	7850	0.1	0.0	*	56.4	48.6	116
Loomis Park	8240	0.2	0.0	*	27.8	27.8	100
Phillips Bench	8200	0.2	0.0	*	41.2	40.8	101
Salt River Summit	7640	0.0	0.0	*	30.0	26.2	115
Snake River Station	6920	-M	0.0	*	35.4	34.5	103
Somsen Ranch	6800	-M	0.0	*	35.0	26.6	132
Spring Creek Divide	9000	0.4	0.0	*	45.3	35.8	127
Thumb Divide	7980	0.1	0.0	*	34.3	29.4	117
Togwotee Pass	9580	0.0	0.0	*	36.1	38.2	95
Triple Peak	8500	-M	0.0	*	40.3	39.4	102
Two Ocean Plateau	9240	-M	0.0	*	44.0	41.4	106
Willow Creek	8080	-M	0.0	*	54.2	52.0	104
Younts Peak	8350	-M	0.0₍₂₉₎	*	-M	28.0₍₂₈₎	*
Basin Index (%)		*			108
WILLOW, BLACKFOOT, PORTNEUF BASINS
Oxford Spring	6740	-M	0.0₍₂₉₎	*	39.6	27.2	146
Pebble Creek	6513	0.1	N/A	*	50.5	N/A	*
Sedgwick Peak	7850	-M	0.0	*	49.2	32.2	153
Sheep Mtn.	6650	0.0	0.0	*	32.4	25.4	128
Slug Creek Divide	7225	0.0	0.0	*	41.3	33.2	124
Somsen Ranch	6800	-M	0.0	*	35.0	26.6	132
Wildhorse Divide	6490	-M	0.0	*	41.3	28.6	144
Basin Index (%)		*			138
SNAKE BASIN ABOVE AMERICAN FALLS
Base Camp	7060	-M	0.0	*	33.2	32.7	102
Black Bear	8170	0.0	0.0	*	59.5	54.0	110
Blind Bull Sum	8650	0.1	0.0	*	31.3	29.2	107
Cottonwood Creek	7670	0.1	0.0	*	46.3	39.4	118
East Rim Divide	7930	-M	0.0	*	24.8	19.3	128
Grand Targhee	9260	-M	0.0₍₁₄₎	*	49.1	50.6₍₁₄₎	97
Granite Creek	6770	0.0	0.0	*	24.6	30.6	80
Grassy Lake	7265	-M	0.0	*	56.1	50.7	111
Gros Ventre Summit	8750	-M	0.0	*	22.9	22.6	101
Gunsight Pass	9820	0.2	0.0₍₂₂₎	*	28.4	25.0₍₂₂₎	114
Island Park	6290	0.0	0.0	*	32.9	28.0	118
Lewis Lake Divide	7850	0.1	0.0	*	56.4	48.6	116
Loomis Park	8240	0.2	0.0	*	27.8	27.8	100
Oxford Spring	6740	-M	0.0₍₂₉₎	*	39.6	27.2	146
Phillips Bench	8200	0.2	0.0	*	41.2	40.8	101
Pine Creek Pass	6720	-M	0.0	*	39.9	33.3	120
Salt River Summit	7640	0.0	0.0	*	30.0	26.2	115
Sedgwick Peak	7850	-M	0.0	*	49.2	32.2	153
Sheep Mtn.	6650	0.0	0.0	*	32.4	25.4	128
Slug Creek Divide	7225	0.0	0.0	*	41.3	33.2	124
Snake River Station	6920	-M	0.0	*	35.4	34.5	103
Somsen Ranch	6800	-M	0.0	*	35.0	26.6	132
Spring Creek Divide	9000	0.4	0.0	*	45.3	35.8	127
Thumb Divide	7980	0.1	0.0	*	34.3	29.4	117
Togwotee Pass	9580	0.0	0.0	*	36.1	38.2	95
Two Ocean Plateau	9240	-M	0.0	*	44.0	41.4	106
White Elephant	7710	0.1	0.0	*	53.2	44.5	120
Wildhorse Divide	6490	-M	0.0	*	41.3	28.6	144
Willow Creek	8080	-M	0.0	*	54.2	52.0	104
Basin Index (%)		*			114
RAFT BASIN
George Creek	8964	0.0	0.0₍₁₁₎	*	43.6	33.3₍₁₀₎	131
Howell Canyon	7980	-M	0.0	*	50.6	40.1₍₂₉₎	126
Basin Index (%)		*			128
GOOSE CREEK BASIN
Bostetter R.S.	7500	0.1	0.0	*	37.1	28.0	132
Magic Mountain	6880	0.2	0.0	*	37.3	32.6	114
Basin Index (%)		*			123
SALMON FALLS BASIN
Bostetter R.S.	7500	0.1	0.0	*	37.1	28.0	132
Jakes Creek	7380	-M	N/A	*	28.3	N/A	*
Magic Mountain	6880	0.2	0.0	*	37.3	32.6	114
ONeil Creek	6520	-M	N/A	*	24.7	N/A	*
Pole Creek R.S.	8360	0.1	0.0	*	30.1	20.9	144
Wilson Creek	7120	-M	0.0	*	29.5	27.6	107
Basin Index (%)		*			123
BRUNEAU BASIN
Bear Creek	8040	0.1	0.0	*	41.4	33.8	122
Big Bend	6898	0.1	0.0	*	22.5	17.2	131
Merritt Mountain	6915	-M	N/A	*	20.1	N/A	*
ONeil Creek	6520	-M	N/A	*	24.7	N/A	*
Pole Creek R.S.	8360	0.1	0.0	*	30.1	20.9	144
Seventysix Creek	7350	0.1	0.0	*	25.3	21.6	117
Stag Mountain	7640	-M	N/A	*	-M	N/A	*
Wilson Creek	7120	-M	0.0	*	29.5	27.6	107
Basin Index (%)		*			123
OWYHEE BASIN
Big Bend	6898	0.1	0.0	*	22.5	17.2	131
Columbia Basin	6483	-M	N/A	*	27.8	N/A	*
Fawn Creek	7031	0.0	0.0	*	30.4	32.1	95
Fry Canyon	6798	0.1	N/A	*	30.3	N/A	*
Jack Creek Upper	7377	0.0	0.0	*	33.4	27.4	122
Jacks Peak	8424	-M	N/A	*	-M	33.2	*
Laurel Draw	6682	0.0	0.0	*	28.1	25.8	109
Merritt Mountain	6915	-M	N/A	*	20.1	N/A	*
Mud Flat	5730	-M	0.0	*	17.9	16.3	110
South Mtn.	6500	-M	0.0	*	36.9	31.8	116
Taylor Canyon	6325	0.0	0.0	*	17.5	13.2	133
Toe Jam	7690	0.2	0.0₍₁₁₎	*	37.7	25.6₍₁₁₎	147
Basin Index (%)		*			118
BEAR RIVER BASIN
Bear River RS	8777	0.0	0.0₍₁₀₎	*	25.1	23.0₍₁₀₎	109
Bug Lake	7987	0.2	0.0	*	37.0	27.6	134
Burts Miller Ranch	8000	0.2	0.0₍₁₂₎	*	23.7	13.3₍₁₁₎	178
Chalk Creek #1	9171	0.1	0.0	*	45.4	37.1	122
Emigrant Summit	7390	-M	0.0	*	45.6	38.2	119
Franklin Basin	8140	0.5	0.0	*	57.6	42.4	136
Garden City Summit	7705	0.1	0.0₍₁₂₎	*	37.7	28.6₍₁₁₎	132
Giveout	6930	-M	0.0	*	25.2	21.6	117
Hayden Fork	9130	1.5	0.0	*	41.1	34.6	119
Kelley R.S.	8180	0.3	0.0	*	33.0	27.2	121
Klondike Narrows	7250	0.0	0.0₍₁₂₎	*	51.7	34.4₍₁₁₎	150
Lily Lake	9133	0.0	0.0	*	27.6	28.3	98
Monte Cristo	8932	0.0	0.0	*	52.0	37.4	139
Oxford Spring	6740	-M	0.0₍₂₉₎	*	39.6	27.2	146
Salt River Summit	7640	0.0	0.0	*	30.0	26.2	115
Sedgwick Peak	7850	-M	0.0	*	49.2	32.2	153
Slug Creek Divide	7225	0.0	0.0	*	41.3	33.2	124
Spring Creek Divide	9000	0.4	0.0	*	45.3	35.8	127
Tony Grove Lake	8474	0.0	0.0	*	72.4	46.2	157
Trial Lake	9992	1.0	0.0	*	48.8	36.6	133
Usu Doc Daniel	8270	0.0	0.0₍₁₄₎	*	55.5	38.5₍₁₃₎	144
Basin Index (%)		*			132

-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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