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 Monday, May 18, 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
NORTHERN PANHANDLE REGION
Bear Mountain	5460	17.6	49.8₍₂₉₎	35	80.3	78.2	103
Bunchgrass Mdw	5020	0.0	17.9	0	35.0	41.3	85
Garver Creek	4250	0.0	0.0	*	24.2	20.4₍₂₄₎	119
Hawkins Lake	6460	8.3	18.0	46	46.2	35.8	129
Hidden Lake	5000	7.9	21.4₍₂₀₎	37	62.9	63.2₍₂₀₎	100
Mosquito Ridge	5270	0.0	20.9₍₂₉₎	0	51.2	48.3	106
Moyie Mountain	6037	0.1	3.4₍₂₂₎	3	-M	N/A	*
Myrtle Creek	3540	0.0	0.0₍₁₇₎	*	26.9	23.1₍₁₇₎	116
Quartz Peak	4710	0.0	0.0	*	38.3	39.2	98
Schweitzer Basin	6090	17.7	40.6	44	44.2	45.2	98
Basin Index (%)		30			104
COEUR D'ALENE-ST. JOE RIVER BASIN
Humboldt Gulch	4260	0.0	0.0	*	46.3	42.0	110
Lookout	5180	0.0	11.2	0	46.8	42.2	111
Lost Lake	6090	31.5	44.6	71	75.1	65.6	114
Mica Creek	4480	0.0	0.0	*	45.1	43.5	104
Mosquito Ridge	5270	0.0	20.9₍₂₉₎	0	51.2	48.3	106
Sherwin	3190	0.0	0.0	*	33.7	32.2₍₂₉₎	105
Sunset	5570	0.5	11.2	4	43.6	40.1	109
Basin Index (%)		36			109
CLEARWATER BASIN
Cool Creek	6320	29.3	43.1	68	57.9	60.2	96
Crater Meadows	5960	27.6	33.2	83	67.6	59.9	113
Elk Butte	5680	0.3	20.2	1	42.1	48.6	87
Hemlock Butte	5800	3.4	29.8	11	48.5	N/A	*
Hoodoo Basin	6060	38.4	36.1	106	63.5	51.4	124
Lolo Pass	5280	0.0	8.2	0	44.4	39.0	114
Lost Lake	6090	31.5	44.6	71	75.1	65.6	114
Moscow Mountain	4700	0.0	0.0₍₂₀₎	*	38.1	37.6₍₂₀₎	101
Mountain Meadows	6340	0.8	12.0	7	32.0	35.2	91
Nez Perce Camp	5670	0.0	0.2	0*	29.8	24.3	123
Pierce R.S.	3080	0.1	0.0₍₁₁₎	*	39.8	36.6₍₁₁₎	109
Savage Pass	6170	9.4	13.0	72	42.8	37.2	115
Shanghi Summit	4590	0.0	0.0	*	49.7	47.0	106
Sherwin	3190	0.0	0.0	*	33.7	32.2₍₂₉₎	105
Twelvemile Creek	5530	0.0	0.0	*	48.4	38.3	126
Twin Lakes	6380	20.8	26.6	78	62.7	53.7	117
Basin Index (%)		61			109
SALMON BASIN
Banner Summit	7040	0.0	12.6	0	35.0	34.4	102
Bear Basin	5350	0.0	3.0	0	27.3	29.3	93
Big Creek Summit	6550	1.3	18.8	7	38.3	38.7	99
Brundage Reservoir	6280	0.0	12.6	0	42.6	42.9	99
Deadwood Summit	6990	22.5	27.0	83	47.3	47.6	99
Galena	7470	0.0	5.8	0	21.4	19.8	108
Galena Summit	8790	0.1	12.7	1	21.7	23.6	92
Lemhi Ridge	8080	0.1	2.6	4	15.2	16.5	92
Meadow Lake	9190	3.5	12.2	29	22.3	22.0	101
Mill Creek Summit	8780	9.6	15.9₍₂₉₎	60	21.2	22.2	95
Moonshine	7490	0.0	0.0	*	15.7	15.0	105
Moose Creek	6170	0.0	0.0	*	24.3	23.4	104
Morgan Creek	7620	0.3	0.0	*	17.0	17.7	96
Mountain Meadows	6340	0.8	12.0	7	32.0	35.2	91
Saddle Mtn.	7890	13.2	18.1	73	25.8	26.7	97
Schwartz Lake	8620	0.0	3.6₍₂₅₎	0	16.1	17.9₍₂₅₎	90
Secesh Summit	6530	0.0	14.6	0	42.7	34.0	126
Puhi Flat	6240	0.0	2.0	0*	36.6	37.8	97
Vienna Mine	8930	16.5	27.8	59	36.9	35.4	104
West Branch	5590	0.0	0.0	*	33.6	34.8	97
Basin Index (%)		34			100
WEISER BASIN
Bear Saddle	6170	0.0	0.0	*	23.1	29.2	79
Puhi Flat	6240	0.0	2.0	0*	36.6	37.8	97
Van Wyck	4960	0.0	0.0₍₁₉₎	*	18.3	20.9₍₁₉₎	88
West Branch	5590	0.0	0.0	*	33.6	34.8	97
Basin Index (%)		0*			91
PAYETTE BASIN
Banner Summit	7040	0.0	12.6	0	35.0	34.4	102
Bear Basin	5350	0.0	3.0	0	27.3	29.3	93
Big Creek Summit	6550	1.3	18.8	7	38.3	38.7	99
Bogus Basin	6370	0.0	1.2₍₂₁₎	0*	26.8	25.8₍₂₁₎	104
Brundage Reservoir	6280	0.0	12.6	0	42.6	42.9	99
Cozy Cove	5410	0.0	0.0	*	25.2	25.8	98
Deadwood Summit	6990	22.5	27.0	83	47.3	47.6	99
Jackson Peak	7060	3.3	15.5	21	36.7	36.7	100
Long Valley	4890	0.0	0.0₍₁₉₎	*	20.2	19.3₍₁₉₎	105
Secesh Summit	6530	0.0	14.6	0	42.7	34.0	126
Puhi Flat	6240	0.0	2.0	0*	36.6	37.8	97
Van Wyck	4960	0.0	0.0₍₁₉₎	*	18.3	20.9₍₁₉₎	88
Basin Index (%)		25			101
BOISE BASIN
Atlanta Summit	7570	0.0	19.6	0	35.4	36.1	98
Bogus Basin	6370	0.0	1.2₍₂₁₎	0*	26.8	25.8₍₂₁₎	104
Camas Creek Divide	5720	0.0	0.0₍₂₉₎	*	18.4	19.8₍₂₈₎	93
Couch Summit	6780	0.0	N/A	*	20.2	N/A	*
Dollarhide Summit	8390	2.5	18.2	14	24.8	27.6	90
Graham Guard Sta.	5690	0.0	0.0	*	26.3	25.4	104
Jackson Peak	7060	3.3	15.5	21	36.7	36.7	100
Mores Creek Summit	6090	0.0	8.2	0	35.1	40.6	86
Prairie	4800	0.0	0.0	*	17.3	17.9	97
Trinity Mtn.	7790	6.8	29.8	23	36.6	43.6	84
Vienna Mine	8930	16.5	27.8	59	36.9	35.4	104
Basin Index (%)		24			95
BIG WOOD BASIN
Camas Creek Divide	5720	0.0	0.0₍₂₉₎	*	18.4	19.8₍₂₈₎	93
Chocolate Gulch	6310	0.0	0.0₍₂₇₎	*	17.7	16.8₍₂₇₎	105
Couch Summit	6780	0.0	N/A	*	20.2	N/A	*
Dollarhide Summit	8390	2.5	18.2	14	24.8	27.6	90
Galena	7470	0.0	5.8	0	21.4	19.8	108
Galena Summit	8790	0.1	12.7	1	21.7	23.6	92
Hyndman	7590	0.0	0.0	*	18.9	18.7	101
Lost-Wood Divide	7870	0.0	7.5	0	23.1	21.4	108
Soldier R.S.	5780	0.1	0.0	*	17.0	19.6	87
Basin Index (%)		6			97
LITTLE WOOD BASIN
Bear Canyon	7920	0.0	6.4	0	24.5	20.8	118
Fish Ck	6380	-M	N/A	*	-M	N/A	*
Garfield R.S.	6580	0.0	0.0	*	16.7	15.2	110
Smiley Mountain	9540	8.7	15.0₍₁₉₎	58	25.0	22.0₍₁₉₎	114
Swede Peak	7640	0.3	4.0	8	19.8	19.4	102
Basin Index (%)		35			111
BIG LOST BASIN
Bear Canyon	7920	0.0	6.4	0	24.5	20.8	118
Hilts Creek	8090	0.0	1.0	0*	17.9	16.0	112
Lost-Wood Divide	7870	0.0	7.5	0	23.1	21.4	108
Smiley Mountain	9540	8.7	15.0₍₁₉₎	58	25.0	22.0₍₁₉₎	114
Stickney Mill	7440	0.0	0.0	*	15.2	13.2	115
Basin Index (%)		29			113
LITTLE LOST
Hilts Creek	8090	0.0	1.0	0*	17.9	16.0	112
Meadow Lake	9190	3.5	12.2	29	22.3	22.0	101
Moonshine	7490	0.0	0.0	*	15.7	15.0	105
Basin Index (%)		27*			105
BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8880	0.0	1.5	0	14.3	13.8	104
Crab Creek	6870	0.0	0.1	0*	16.7	17.8	94
Lakeview Ridge	7340	0.0	0.0	*	20.1	17.3	116
Meadow Lake	9190	3.5	12.2	29	22.3	22.0	101
Basin Index (%)		25			104
HENRYS FORK, TETON BASINS
Black Bear	8160	19.6	36.0	54	39.7	42.8	93
Grand Targhee	9260	-M	44.0₍₁₄₎	*	-M	37.8₍₁₄₎	*
Grassy Lake	7330	0.0	18.3	0	36.1	41.2	88
Island Park	6300	0.0	0.0	*	17.5	20.5	85
Lewis Lake Divide	7880	7.8	22.8	34	43.6	39.2	111
Phillips Bench	8170	4.5	20.4	22	30.9	31.0	100
Pine Creek Pass	6710	0.0	0.0	*	21.5	24.8	87
White Elephant	7670	0.0	18.2	0	31.3	34.1	92
Basin Index (%)		28			94
SNAKE BASIN ABOVE PALISADES
Base Camp	7040	0.0	0.0	*	26.0	24.4	107
Blind Bull Sum	8880	14.8	22.5	66	17.5	20.8	84
Cottonwood Creek	7710	0.0	9.2	0	28.2	30.0	94
East Rim Divide	8010	0.0	0.0	*	13.1	13.9	94
Granite Creek	6770	0.0	0.5	0*	22.3	22.4	100
Grassy Lake	7330	0.0	18.3	0	36.1	41.2	88
Gros Ventre Summit	8760	0.0	6.8	0	17.1	15.4	111
Gunsight Pass	9820	0.1	11.0₍₂₂₎	1	18.1	17.4₍₂₂₎	104
Lewis Lake Divide	7880	7.8	22.8	34	43.6	39.2	111
Loomis Park	8240	0.0	3.9	0	18.5	20.5	90
Phillips Bench	8170	4.5	20.4	22	30.9	31.0	100
Salt River Summit	7630	0.0	0.0	*	17.9	18.9	95
Snake River Station	6900	0.0	0.0	*	24.1	26.8	90
Somsen Ranch	6830	0.0	0.0	*	18.9	19.6	96
Spring Creek Divide	9020	15.9	21.1	75	27.9	27.6	101
Thumb Divide	7970	0.0	2.2	0	23.5	22.3	105
Togwotee Pass	9590	13.4	23.2	58	32.5	29.0	112
Triple Peak	8520	0.0	12.0	0	30.7	30.3	101
Two Ocean Plateau	9240	30.9	30.4	102	36.4	31.2	117
Willow Creek	8060	0.0	18.6	0	36.8	40.2	92
Younts Peak	8340	0.0	8.8₍₂₈₎	0	24.4	18.4₍₂₈₎	133
Basin Index (%)		38			101
WILLOW, BLACKFOOT, PORTNEUF BASINS
Oxford Spring	6790	0.0	0.0₍₂₉₎	*	18.5	19.2	96
Pebble Creek	6520	0.0	N/A	*	23.0	N/A	*
Sedgwick Peak	7800	0.0	3.0	0	23.2	25.0	93
Sheep Mtn.	6630	0.0	0.0	*	16.2	19.2	84
Slug Creek Divide	7240	0.2	0.0	*	23.7	24.9	95
Somsen Ranch	6830	0.0	0.0	*	18.9	19.6	96
Wildhorse Divide	6480	0.0	0.0	*	20.6	22.7	91
Basin Index (%)		7*			93
SNAKE BASIN ABOVE AMERICAN FALLS
Base Camp	7040	0.0	0.0	*	26.0	24.4	107
Black Bear	8160	19.6	36.0	54	39.7	42.8	93
Blind Bull Sum	8880	14.8	22.5	66	17.5	20.8	84
Cottonwood Creek	7710	0.0	9.2	0	28.2	30.0	94
East Rim Divide	8010	0.0	0.0	*	13.1	13.9	94
Grand Targhee	9260	-M	44.0₍₁₄₎	*	-M	37.8₍₁₄₎	*
Granite Creek	6770	0.0	0.5	0*	22.3	22.4	100
Grassy Lake	7330	0.0	18.3	0	36.1	41.2	88
Gros Ventre Summit	8760	0.0	6.8	0	17.1	15.4	111
Gunsight Pass	9820	0.1	11.0₍₂₂₎	1	18.1	17.4₍₂₂₎	104
Island Park	6300	0.0	0.0	*	17.5	20.5	85
Lewis Lake Divide	7880	7.8	22.8	34	43.6	39.2	111
Loomis Park	8240	0.0	3.9	0	18.5	20.5	90
Oxford Spring	6790	0.0	0.0₍₂₉₎	*	18.5	19.2	96
Phillips Bench	8170	4.5	20.4	22	30.9	31.0	100
Pine Creek Pass	6710	0.0	0.0	*	21.5	24.8	87
Salt River Summit	7630	0.0	0.0	*	17.9	18.9	95
Sedgwick Peak	7800	0.0	3.0	0	23.2	25.0	93
Sheep Mtn.	6630	0.0	0.0	*	16.2	19.2	84
Slug Creek Divide	7240	0.2	0.0	*	23.7	24.9	95
Snake River Station	6900	0.0	0.0	*	24.1	26.8	90
Somsen Ranch	6830	0.0	0.0	*	18.9	19.6	96
Spring Creek Divide	9020	15.9	21.1	75	27.9	27.6	101
Thumb Divide	7970	0.0	2.2	0	23.5	22.3	105
Togwotee Pass	9590	13.4	23.2	58	32.5	29.0	112
Two Ocean Plateau	9240	30.9	30.4	102	36.4	31.2	117
White Elephant	7670	0.0	18.2	0	31.3	34.1	92
Wildhorse Divide	6480	0.0	0.0	*	20.6	22.7	91
Willow Creek	8060	0.0	18.6	0	36.8	40.2	92
Basin Index (%)		40			97
RAFT BASIN
George Creek	8960	0.0	9.7₍₁₀₎	0	20.2	23.4₍₁₀₎	86
Howell Canyon	8010	0.0	13.0	0	28.4	33.6	85
Basin Index (%)		0			85
GOOSE CREEK BASIN
Bostetter R.S.	7530	0.0	0.0	*	18.0	21.6	83
Magic Mountain	6940	0.0	0.6	0*	16.7	27.3	61
Basin Index (%)		0*			71
SALMON FALLS BASIN
Bostetter R.S.	7530	0.0	0.0	*	18.0	21.6	83
Jakes Creek	7380	-M	N/A	*	12.7	N/A	*
Magic Mountain	6940	0.0	0.6	0*	16.7	27.3	61
ONeil Creek	6490	0.0	N/A	*	8.8	N/A	*
Pole Creek R.S.	8370	0.3	16.0	2	13.0	15.0	87
Wilson Creek	7110	0.0	0.0	*	16.0	21.6	74
Basin Index (%)		2*			75
BRUNEAU BASIN
Bear Creek	8090	0.0	9.8	0	20.3	27.8	73
Big Bend	6890	0.0	0.0	*	10.8	12.9	84
Merritt Mountain	6920	-M	N/A	*	11.8	N/A	*
ONeil Creek	6490	0.0	N/A	*	8.8	N/A	*
Pole Creek R.S.	8370	0.3	16.0	2	13.0	15.0	87
Seventysix Creek	7360	0.0	0.0	*	12.4	16.4	76
Stag Mountain	7640	-M	N/A	*	7.6	N/A	*
Wilson Creek	7110	0.0	0.0	*	16.0	21.6	74
Basin Index (%)		1*			77
OWYHEE BASIN
Big Bend	6890	0.0	0.0	*	10.8	12.9	84
Columbia Basin	6490	-M	N/A	*	15.2	N/A	*
Fawn Creek	7040	0.0	0.0	*	17.8	27.0	66
Fry Canyon	6790	0.1	N/A	*	15.3	N/A	*
Jack Creek Upper	7380	0.0	0.1	0*	17.6	22.9	77
Jacks Peak	8440	-M	N/A	*	19.2	28.2	68
Laurel Draw	6680	0.0	0.0	*	17.0	20.0	85
Merritt Mountain	6920	-M	N/A	*	11.8	N/A	*
Mud Flat	5750	0.0	0.0	*	7.5	13.1	57
South Mtn.	6650	0.0	0.0	*	23.4	27.3	86
Taylor Canyon	6320	0.0	0.0	*	8.9	9.8	91
Toe Jam	7700	0.2	0.0₍₁₁₎	*	18.8	20.8₍₁₁₎	90
Basin Index (%)		200*			77
BEAR RIVER BASIN
Bear River RS	8510	0.4	0.0₍₁₀₎	*	13.1	14.4₍₁₀₎	91
Bug Lake	7980	0.2	7.2	3	23.1	20.2	114
Burts Miller Ranch	7900	0.3	0.0₍₁₁₎	*	12.6	9.4₍₁₁₎	134
Chalk Creek #1	9160	0.6	14.4	4	24.3	28.5	85
Emigrant Summit	7390	0.0	9.8	0	25.8	28.0	92
Franklin Basin	8140	0.9	14.0	6	35.3	33.3	106
Garden City Summit	7680	0.2	0.0₍₁₁₎	*	22.9	21.2₍₁₁₎	108
Giveout	6940	0.0	0.0	*	16.0	15.3	105
Hayden Fork	9170	0.5	0.0	*	22.0	24.8	89
Kelley R.S.	8240	0.2	2.9	7	19.9	20.0	100
Klondike Narrows	7280	0.1	0.0₍₁₁₎	*	32.2	28.9₍₁₁₎	111
Lily Lake	9130	0.4	0.0	*	15.1	20.2	75
Monte Cristo	8930	0.3	16.7	2	29.0	29.8	97
Oxford Spring	6790	0.0	0.0₍₂₉₎	*	18.5	19.2	96
Salt River Summit	7630	0.0	0.0	*	17.9	18.9	95
Sedgwick Peak	7800	0.0	3.0	0	23.2	25.0	93
Slug Creek Divide	7240	0.2	0.0	*	23.7	24.9	95
Spring Creek Divide	9020	15.9	21.1	75	27.9	27.6	101
Tony Grove Lake	8450	0.1	21.0	0	39.8	39.9	100
Trial Lake	9970	1.4	17.3	8	24.1	27.0	89
Usu Doc Daniel	8610	11.2	25.6₍₁₃₎	44	30.5	32.8₍₁₃₎	93
Basin Index (%)		22			98

-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.