Idaho Southern SNOTEL Snow/Precipitation Update Report

Idaho Southern 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 Sunday, March 22, 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
WEISER BASIN
Bear Saddle	6170	7.4	20.4	36	16.7	23.4	71
Puhi Flat	6240	13.4	21.0	64	30.0	27.8	108
Van Wyck	4960	0.0	4.3₍₁₉₎	0	13.7	15.8₍₁₉₎	87
West Branch	5590	10.6	20.5	52	27.4	28.2	97
Basin Index (%)		47			92
NF PAYETTE BASIN
Bear Basin	5350	8.2	16.3	50	21.3	22.2	96
Big Creek Summit	6550	19.7	28.8	68	29.8	31.3	95
Brundage Reservoir	6280	20.9	28.8	73	34.7	33.6	103
Long Valley	4890	0.0	3.9₍₁₉₎	0	16.4	15.1₍₁₉₎	109
Secesh Summit	6530	22.9	29.2	78	34.9	26.5	132
Puhi Flat	6240	13.4	21.0	64	30.0	27.8	108
Basin Index (%)		66			107
SF PAYETTE BASIN
Banner Summit	7040	17.8	24.6	72	27.4	27.6	99
Cozy Cove	5410	-M	13.6	*	19.9	21.4	93
Deadwood Summit	6990	32.5	37.3	87	38.4	39.6	97
Jackson Peak	7060	16.1	24.8	65	27.9	29.2	96
Basin Index (%)		77			96
PAYETTE BASIN
Banner Summit	7040	17.8	24.6	72	27.4	27.6	99
Bear Basin	5350	8.2	16.3	50	21.3	22.2	96
Big Creek Summit	6550	19.7	28.8	68	29.8	31.3	95
Bogus Basin	6370	10.0	21.1₍₂₁₎	47	19.2	20.2₍₂₁₎	95
Brundage Reservoir	6280	20.9	28.8	73	34.7	33.6	103
Cozy Cove	5410	-M	13.6	*	19.9	21.4	93
Deadwood Summit	6990	32.5	37.3	87	38.4	39.6	97
Jackson Peak	7060	16.1	24.8	65	27.9	29.2	96
Long Valley	4890	0.0	3.9₍₁₉₎	0	16.4	15.1₍₁₉₎	109
Secesh Summit	6530	22.9	29.2	78	34.9	26.5	132
Puhi Flat	6240	13.4	21.0	64	30.0	27.8	108
Basin Index (%)		68			102
MF AND NF BOISE BASINS
Atlanta Summit	7570	20.2	27.2	74	29.0	29.0	100
Graham Guard Sta.	5690	0.2	11.9	2	21.0	20.7	101
Jackson Peak	7060	16.1	24.8	65	27.9	29.2	96
Mores Creek Summit	6090	11.0	29.2	38	25.8	32.6	79
Trinity Mtn.	7790	22.4	32.8	68	30.3	34.4	88
Basin Index (%)		56			92
SF BOISE BASIN
Atlanta Summit	7570	20.2	27.2	74	29.0	29.0	100
Camas Creek Divide	5720	0.0	11.6₍₂₈₎	0	15.7	16.0₍₂₈₎	98
Dollarhide Summit	8390	28.2	21.6	131	20.7	23.0	90
Prairie	4800	0.0	1.9	0	12.4	13.8	90
Trinity Mtn.	7790	22.4	32.8	68	30.3	34.4	88
Vienna Mine	8930	28.7	29.8	96	30.5	29.2	104
Basin Index (%)		80			95
MORES CREEK BASIN
Bogus Basin	6370	10.0	21.1₍₂₁₎	47	19.2	20.2₍₂₁₎	95
Mores Creek Summit	6090	11.0	29.2	38	25.8	32.6	79
Basin Index (%)		42			85
BOISE BASIN
Atlanta Summit	7570	20.2	27.2	74	29.0	29.0	100
Bogus Basin	6370	10.0	21.1₍₂₁₎	47	19.2	20.2₍₂₁₎	95
Camas Creek Divide	5720	0.0	11.6₍₂₈₎	0	15.7	16.0₍₂₈₎	98
Dollarhide Summit	8390	28.2	21.6	131	20.7	23.0	90
Graham Guard Sta.	5690	0.2	11.9	2	21.0	20.7	101
Jackson Peak	7060	16.1	24.8	65	27.9	29.2	96
Mores Creek Summit	6090	11.0	29.2	38	25.8	32.6	79
Prairie	4800	0.0	1.9	0	12.4	13.8	90
Trinity Mtn.	7790	22.4	32.8	68	30.3	34.4	88
Vienna Mine	8930	28.7	29.8	96	30.5	29.2	104
Basin Index (%)		65			94
BIG WOOD BASIN ABOVE HAILEY
Chocolate Gulch	6310	5.9	11.9₍₂₇₎	50	15.5	13.6₍₂₇₎	114
Dollarhide Summit	8390	28.2	21.6	131	20.7	23.0	90
Galena	7470	12.5	15.4	81	18.2	16.4	111
Galena Summit	8790	17.9	18.2	98	18.7	17.9	104
Hyndman	7590	9.2	11.2	82	16.1	14.0	115
Lost-Wood Divide	7870	17.1	17.4	98	20.0	18.2	110
Vienna Mine	8930	28.7	29.8	96	30.5	29.2	104
Basin Index (%)		95			106
CAMAS BASIN
Camas Creek Divide	5720	0.0	11.6₍₂₈₎	0	15.7	16.0₍₂₈₎	98
Soldier R.S.	5780	0.0	10.6	0	14.6	16.1	91
Basin Index (%)		0			94
BIG WOOD BASIN
Camas Creek Divide	5720	0.0	11.6₍₂₈₎	0	15.7	16.0₍₂₈₎	98
Chocolate Gulch	6310	5.9	11.9₍₂₇₎	50	15.5	13.6₍₂₇₎	114
Dollarhide Summit	8390	28.2	21.6	131	20.7	23.0	90
Galena	7470	12.5	15.4	81	18.2	16.4	111
Galena Summit	8790	17.9	18.2	98	18.7	17.9	104
Hyndman	7590	9.2	11.2	82	16.1	14.0	115
Lost-Wood Divide	7870	17.1	17.4	98	20.0	18.2	110
Soldier R.S.	5780	0.0	10.6	0	14.6	16.1	91
Vienna Mine	8930	28.7	29.8	96	30.5	29.2	104
Basin Index (%)		81			103
LITTLE WOOD BASIN
Bear Canyon	7920	14.0	13.0	108	20.7	15.2	136
Garfield R.S.	6580	0.0	8.6	0	14.1	10.6	133
Hyndman	7590	9.2	11.2	82	16.1	14.0	115
Smiley Mountain	9540	20.1	17.2₍₁₉₎	117	20.7	17.0₍₁₉₎	122
Swede Peak	7640	8.6	12.6	68	17.0	14.4	118
Basin Index (%)		83			124
UPPER BIG LOST BASIN
Bear Canyon	7920	14.0	13.0	108	20.7	15.2	136
Lost-Wood Divide	7870	17.1	17.4	98	20.0	18.2	110
Smiley Mountain	9540	20.1	17.2₍₁₉₎	117	20.7	17.0₍₁₉₎	122
Stickney Mill	7440	6.4	7.6	84	13.3	9.2	145
Basin Index (%)		104			125
BIG LOST BASIN
Bear Canyon	7920	14.0	13.0	108	20.7	15.2	136
Hilts Creek	8090	11.0	11.6	95	14.9	11.7	127
Lost-Wood Divide	7870	17.1	17.4	98	20.0	18.2	110
Smiley Mountain	9540	20.1	17.2₍₁₉₎	117	20.7	17.0₍₁₉₎	122
Stickney Mill	7440	6.4	7.6	84	13.3	9.2	145
Basin Index (%)		103			126
LITTLE LOST BASIN
Hilts Creek	8090	11.0	11.6	95	14.9	11.7	127
Meadow Lake	9190	15.0	13.8	109	18.4	14.7	125
Moonshine	7490	6.9	9.0	77	13.1	11.2	117
Basin Index (%)		96			123
BIRCH BASIN
Meadow Lake	9190	15.0	13.8	109	18.4	14.7	125
Beagle Springs	8880	7.2	8.3	87	10.8	8.5	127
Basin Index (%)		100			126
MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8880	7.2	8.3	87	10.8	8.5	127
Crab Creek	6870	6.2	12.0	52	13.9	13.6	102
Lakeview Ridge	7340	3.7	9.5	39	15.6	12.4	126
Basin Index (%)		57			117
HENRYS FORK ABOVE ISLAND PARK
Black Bear	8160	24.5	36.1	68	32.0	33.4	96
Island Park	6300	6.7	13.8	49	13.3	16.7	80
White Elephant	7670	16.6	24.0	69	23.6	26.0	91
Basin Index (%)		65			91
FALLS BASIN
Grassy Lake	7330	16.3	29.8	55	28.7	32.2	89
Lewis Lake Divide	7880	27.6	29.0	95	36.0	30.0	120
Basin Index (%)		75			104
HENRYS FORK ABOVE ST. ANTHONY
Black Bear	8160	24.5	36.1	68	32.0	33.4	96
Grassy Lake	7330	16.3	29.8	55	28.7	32.2	89
Island Park	6300	6.7	13.8	49	13.3	16.7	80
Lewis Lake Divide	7880	27.6	29.0	95	36.0	30.0	120
White Elephant	7670	16.6	24.0	69	23.6	26.0	91
Basin Index (%)		69			97
TETON BASIN
Grand Targhee	9260	-M	37.6₍₁₄₎	*	-M	28.2₍₁₄₎	*
Phillips Bench	8170	19.3	23.8	81	25.9	24.2	107
Pine Creek Pass	6710	-M	14.1	*	17.5	20.0	88
Basin Index (%)		81*			98
HENRYS FORK ABOVE REXBURG
Black Bear	8160	24.5	36.1	68	32.0	33.4	96
Grand Targhee	9260	-M	37.6₍₁₄₎	*	-M	28.2₍₁₄₎	*
Grassy Lake	7330	16.3	29.8	55	28.7	32.2	89
Island Park	6300	6.7	13.8	49	13.3	16.7	80
Lewis Lake Divide	7880	27.6	29.0	95	36.0	30.0	120
Phillips Bench	8170	19.3	23.8	81	25.9	24.2	107
Pine Creek Pass	6710	-M	14.1	*	17.5	20.0	88
White Elephant	7670	16.6	24.0	69	23.6	26.0	91
Basin Index (%)		71			97
SNAKE BASIN ABOVE JACKSON LAKE
Grassy Lake	7330	16.3	29.8	55	28.7	32.2	89
Lewis Lake Divide	7880	27.6	29.0	95	36.0	30.0	120
Snake River Station	6900	9.5	16.6	57	20.2	20.0	101
Thumb Divide	7970	14.9	14.8	101	19.6	15.6	126
Two Ocean Plateau	9240	31.7	26.6	119	30.4	23.6	129
Basin Index (%)		86			111
PACIFIC AND BUFFALO BASINS
Base Camp	7040	13.5	16.2	83	22.3	18.8	119
Togwotee Pass	9590	20.9	21.6	97	26.8	22.6	119
Two Ocean Plateau	9240	31.7	26.6	119	30.4	23.6	129
Basin Index (%)		103			122
GROS VENTRE BASIN
Gros Ventre Summit	8760	11.3	11.5	98	14.4	11.2	129
Gunsight Pass	9820	11.9	12.1₍₂₂₎	98	15.1	12.7₍₂₂₎	119
Togwotee Pass	9590	20.9	21.6	97	26.8	22.6	119
Basin Index (%)		98			121
HOBACK BASIN
Blind Bull Sum	8880	22.2	22.4	99	15.7	16.8	93
East Rim Divide	8010	6.2	10.0	62	11.0	10.3	107
Granite Creek	6770	11.3	15.8	72	19.9	16.9	118
Gros Ventre Summit	8760	11.3	11.5	98	14.4	11.2	129
Loomis Park	8240	10.2	14.1	72	15.5	15.6	99
Basin Index (%)		83			108
GREYS BASIN
Blind Bull Sum	8880	22.2	22.4	99	15.7	16.8	93
Cottonwood Creek	7710	15.1	19.8	76	23.8	22.7	105
Spring Creek Divide	9020	21.0	22.6	93	23.3	22.0	106
Willow Creek	8060	21.1	27.2	78	29.2	30.1	97
Basin Index (%)		86			100
SALT BASIN
Cottonwood Creek	7710	15.1	19.8	76	23.8	22.7	105
Salt River Summit	7630	7.5	12.2	61	15.2	13.8	110
Willow Creek	8060	21.1	27.2	78	29.2	30.1	97
Basin Index (%)		74			102
SNAKE BASIN ABOVE PALISADES
Base Camp	7040	13.5	16.2	83	22.3	18.8	119
Blind Bull Sum	8880	22.2	22.4	99	15.7	16.8	93
Cottonwood Creek	7710	15.1	19.8	76	23.8	22.7	105
East Rim Divide	8010	6.2	10.0	62	11.0	10.3	107
Granite Creek	6770	11.3	15.8	72	19.9	16.9	118
Grassy Lake	7330	16.3	29.8	55	28.7	32.2	89
Gros Ventre Summit	8760	11.3	11.5	98	14.4	11.2	129
Gunsight Pass	9820	11.9	12.1₍₂₂₎	98	15.1	12.7₍₂₂₎	119
Lewis Lake Divide	7880	27.6	29.0	95	36.0	30.0	120
Loomis Park	8240	10.2	14.1	72	15.5	15.6	99
Phillips Bench	8170	19.3	23.8	81	25.9	24.2	107
Salt River Summit	7630	7.5	12.2	61	15.2	13.8	110
Snake River Station	6900	9.5	16.6	57	20.2	20.0	101
Spring Creek Divide	9020	21.0	22.6	93	23.3	22.0	106
Thumb Divide	7970	14.9	14.8	101	19.6	15.6	126
Togwotee Pass	9590	20.9	21.6	97	26.8	22.6	119
Two Ocean Plateau	9240	31.7	26.6	119	30.4	23.6	129
Willow Creek	8060	21.1	27.2	78	29.2	30.1	97
Basin Index (%)		84			109
WILLOW BASIN
Sheep Mtn.	6630	2.8	13.0	22	12.8	14.8	86
Somsen Ranch	6830	2.1	11.6	18	15.9	14.7	108
Basin Index (%)		20			97
BLACKFOOT BASIN
Slug Creek Divide	7240	7.6	13.5	56	19.4	18.0	108
Somsen Ranch	6830	2.1	11.6	18	15.9	14.7	108
Basin Index (%)		39			108
PORTNEUF BASIN
Oxford Spring	6790	0.2	8.7₍₂₉₎	2	15.5	14.6	106
Sedgwick Peak	7800	10.6	17.8	60	19.7	18.3	108
Wildhorse Divide	6480	5.9	14.2	42	18.3	18.1	101
Basin Index (%)		41			105
SNAKE BASIN AB AMERICAN FALLS
Base Camp	7040	13.5	16.2	83	22.3	18.8	119
Black Bear	8160	24.5	36.1	68	32.0	33.4	96
Blind Bull Sum	8880	22.2	22.4	99	15.7	16.8	93
Cottonwood Creek	7710	15.1	19.8	76	23.8	22.7	105
East Rim Divide	8010	6.2	10.0	62	11.0	10.3	107
Grand Targhee	9260	-M	37.6₍₁₄₎	*	-M	28.2₍₁₄₎	*
Granite Creek	6770	11.3	15.8	72	19.9	16.9	118
Grassy Lake	7330	16.3	29.8	55	28.7	32.2	89
Gros Ventre Summit	8760	11.3	11.5	98	14.4	11.2	129
Gunsight Pass	9820	11.9	12.1₍₂₂₎	98	15.1	12.7₍₂₂₎	119
Island Park	6300	6.7	13.8	49	13.3	16.7	80
Lewis Lake Divide	7880	27.6	29.0	95	36.0	30.0	120
Loomis Park	8240	10.2	14.1	72	15.5	15.6	99
Oxford Spring	6790	0.2	8.7₍₂₉₎	2	15.5	14.6	106
Phillips Bench	8170	19.3	23.8	81	25.9	24.2	107
Pine Creek Pass	6710	-M	14.1	*	17.5	20.0	88
Salt River Summit	7630	7.5	12.2	61	15.2	13.8	110
Sedgwick Peak	7800	10.6	17.8	60	19.7	18.3	108
Sheep Mtn.	6630	2.8	13.0	22	12.8	14.8	86
Slug Creek Divide	7240	7.6	13.5	56	19.4	18.0	108
Snake River Station	6900	9.5	16.6	57	20.2	20.0	101
Somsen Ranch	6830	2.1	11.6	18	15.9	14.7	108
Spring Creek Divide	9020	21.0	22.6	93	23.3	22.0	106
Thumb Divide	7970	14.9	14.8	101	19.6	15.6	126
Togwotee Pass	9590	20.9	21.6	97	26.8	22.6	119
Two Ocean Plateau	9240	31.7	26.6	119	30.4	23.6	129
White Elephant	7670	16.6	24.0	69	23.6	26.0	91
Wildhorse Divide	6480	5.9	14.2	42	18.3	18.1	101
Willow Creek	8060	21.1	27.2	78	29.2	30.1	97
Basin Index (%)		74			105
RAFT BASIN
George Creek	8960	14.5	18.8₍₁₀₎	77	18.1	18.9₍₁₀₎	96
Howell Canyon	8010	17.4	24.8	70	23.8	25.2	94
Basin Index (%)		73			95
GOOSE CREEK BASIN
Bostetter R.S.	7530	4.7	14.8	32	14.8	16.1	92
Magic Mountain	6940	5.2	18.5	28	13.4	19.8	68
Basin Index (%)		30			79
SALMON FALLS BASIN
Bear Creek	8090	-M	17.6	*	13.6	19.2	71
Bostetter R.S.	7530	4.7	14.8	32	14.8	16.1	92
Magic Mountain	6940	5.2	18.5	28	13.4	19.8	68
Pole Creek R.S.	8370	10.7	17.9	60	10.8	10.0	108
Wilson Creek	7110	-M	12.8	*	13.0	15.2	86
Basin Index (%)		40			82
JARBIDGE BASIN
Bear Creek	8090	-M	17.6	*	13.6	19.2	71
Seventysix Creek	7360	0.0	8.6	0	10.0	12.8	78
Pole Creek R.S.	8370	10.7	17.9	60	10.8	10.0	108
Basin Index (%)		40			82
BRUNEAU BASIN
Bear Creek	8090	-M	17.6	*	13.6	19.2	71
Big Bend	6890	0.0	8.3	0	8.9	9.6	93
Pole Creek R.S.	8370	10.7	17.9	60	10.8	10.0	108
Seventysix Creek	7360	0.0	8.6	0	10.0	12.8	78
Wilson Creek	7110	-M	12.8	*	13.0	15.2	86
Basin Index (%)		31			84
OWYHEE BASIN
Big Bend	6890	0.0	8.3	0	8.9	9.6	93
Fawn Creek	7040	0.0	13.8	0	13.3	18.8	71
Jack Creek Upper	7380	-M	14.8	*	12.9	16.6	78
Laurel Draw	6680	0.0	8.1	0	13.0	15.5	84
Mud Flat	5750	0.0	3.8	0	6.4	9.9	65
Reynolds Creek	5590	0.0	N/A	*	12.0	11.6₍₁₈₎	103
South Mtn.	6650	0.0	13.7	0	16.9	20.4	83
Taylor Canyon	6320	0.2	3.2	6	7.6	7.0	109
Basin Index (%)		0			83
BEAR BASIN ABOVE WOODRUFF
Bug Lake	7980	10.7	16.9	63	18.8	15.9	118
Dry Bread Pond	8290	9.3	16.6	56	17.5	17.2	102
Hayden Fork	9170	8.5	13.0	65	17.1	18.2	94
Lily Lake	9130	5.9	11.1	53	11.6	13.8	84
Monte Cristo	8930	17.1	24.4	70	23.8	22.2	107
Trial Lake	9970	16.4	19.7	83	19.0	20.0	95
Basin Index (%)		67			100
SMITH FORK
Kelley R.S.	8240	10.7	13.3	80	16.2	14.6	111
Salt River Summit	7630	7.5	12.2	61	15.2	13.8	110
Spring Creek Divide	9020	21.0	22.6	93	23.3	22.0	106
Basin Index (%)		81			109
BEAR BASIN ABOVE PRESTON
Bug Lake	7980	10.7	16.9	63	18.8	15.9	118
Dry Bread Pond	8290	9.3	16.6	56	17.5	17.2	102
Emigrant Summit	7390	11.7	19.6	60	22.1	21.4	103
Franklin Basin	8140	20.3	23.4	87	29.2	25.5	115
Giveout	6940	-M	7.7	*	13.5	10.7	126
Hayden Fork	9170	8.5	13.0	65	17.1	18.2	94
Kelley R.S.	8240	10.7	13.3	80	16.2	14.6	111
Lily Lake	9130	5.9	11.1	53	11.6	13.8	84
Monte Cristo	8930	17.1	24.4	70	23.8	22.2	107
Oxford Spring	6790	0.2	8.7₍₂₉₎	2	15.5	14.6	106
Salt River Summit	7630	7.5	12.2	61	15.2	13.8	110
Sedgwick Peak	7800	10.6	17.8	60	19.7	18.3	108
Slug Creek Divide	7240	7.6	13.5	56	19.4	18.0	108
Spring Creek Divide	9020	21.0	22.6	93	23.3	22.0	106
Trial Lake	9970	16.4	19.7	83	19.0	20.0	95
Basin Index (%)		68			106
MALAD BASIN
Oxford Spring	6790	0.2	8.7₍₂₉₎	2	15.5	14.6	106
Basin Index (%)		2			106

-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.