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 Tuesday, March 24, 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	7.1	20.2	35	16.8	23.5	71
Puhi Flat	6240	12.6	21.4	59	30.1	29.0	104
Van Wyck	4960	0.0	4.2₍₁₉₎	0	13.7	16.5₍₁₉₎	83
West Branch	5590	10.0	20.3	49	27.5	28.7	96
Basin Index (%)		45			90
NF PAYETTE BASIN
Bear Basin	5350	7.9	16.1	49	21.3	22.8	93
Big Creek Summit	6550	19.3	29.8	65	29.8	31.8	94
Brundage Reservoir	6280	20.4	29.1	70	34.8	34.5	101
Long Valley	4890	0.0	3.2₍₁₉₎	0	16.4	15.3₍₁₉₎	107
Secesh Summit	6530	22.7	29.8	76	34.9	26.7	131
Puhi Flat	6240	12.6	21.4	59	30.1	29.0	104
Basin Index (%)		64			104
SF PAYETTE BASIN
Banner Summit	7040	17.1	25.0	68	27.5	28.3	97
Cozy Cove	5410	-M	13.2	*	19.9	21.8	91
Deadwood Summit	6990	31.9	38.2	84	38.4	40.8	94
Jackson Peak	7060	15.7	25.2	62	27.9	29.8	94
Basin Index (%)		73			94
PAYETTE BASIN
Banner Summit	7040	17.1	25.0	68	27.5	28.3	97
Bear Basin	5350	7.9	16.1	49	21.3	22.8	93
Big Creek Summit	6550	19.3	29.8	65	29.8	31.8	94
Bogus Basin	6370	9.6	21.6₍₂₁₎	44	19.3	20.4₍₂₁₎	95
Brundage Reservoir	6280	20.4	29.1	70	34.8	34.5	101
Cozy Cove	5410	-M	13.2	*	19.9	21.8	91
Deadwood Summit	6990	31.9	38.2	84	38.4	40.8	94
Jackson Peak	7060	15.7	25.2	62	27.9	29.8	94
Long Valley	4890	0.0	3.2₍₁₉₎	0	16.4	15.3₍₁₉₎	107
Secesh Summit	6530	22.7	29.8	76	34.9	26.7	131
Puhi Flat	6240	12.6	21.4	59	30.1	29.0	104
Basin Index (%)		66			100
MF AND NF BOISE BASINS
Atlanta Summit	7570	19.9	27.6	72	29.1	30.0	97
Graham Guard Sta.	5690	0.1	11.9	1	21.3	20.9	102
Jackson Peak	7060	15.7	25.2	62	27.9	29.8	94
Mores Creek Summit	6090	10.6	29.2	36	26.0	32.6	80
Trinity Mtn.	7790	22.2	33.2	67	30.3	35.4	86
Basin Index (%)		54			91
SF BOISE BASIN
Atlanta Summit	7570	19.9	27.6	72	29.1	30.0	97
Camas Creek Divide	5720	0.0	11.5₍₂₈₎	0	15.7	16.4₍₂₈₎	96
Dollarhide Summit	8390	27.5	21.9	126	20.7	23.2	89
Prairie	4800	0.1	0.8	12	12.4	14.3	87
Trinity Mtn.	7790	22.2	33.2	67	30.3	35.4	86
Vienna Mine	8930	28.2	30.0	94	30.6	29.2	105
Basin Index (%)		78			93
MORES CREEK BASIN
Bogus Basin	6370	9.6	21.6₍₂₁₎	44	19.3	20.4₍₂₁₎	95
Mores Creek Summit	6090	10.6	29.2	36	26.0	32.6	80
Basin Index (%)		40			85
BOISE BASIN
Atlanta Summit	7570	19.9	27.6	72	29.1	30.0	97
Bogus Basin	6370	9.6	21.6₍₂₁₎	44	19.3	20.4₍₂₁₎	95
Camas Creek Divide	5720	0.0	11.5₍₂₈₎	0	15.7	16.4₍₂₈₎	96
Dollarhide Summit	8390	27.5	21.9	126	20.7	23.2	89
Graham Guard Sta.	5690	0.1	11.9	1	21.3	20.9	102
Jackson Peak	7060	15.7	25.2	62	27.9	29.8	94
Mores Creek Summit	6090	10.6	29.2	36	26.0	32.6	80
Prairie	4800	0.1	0.8	12	12.4	14.3	87
Trinity Mtn.	7790	22.2	33.2	67	30.3	35.4	86
Vienna Mine	8930	28.2	30.0	94	30.6	29.2	105
Basin Index (%)		63			93
BIG WOOD BASIN ABOVE HAILEY
Chocolate Gulch	6310	5.4	11.4₍₂₇₎	47	15.5	13.9₍₂₇₎	112
Dollarhide Summit	8390	27.5	21.9	126	20.7	23.2	89
Galena	7470	11.9	15.4	77	18.2	16.6	110
Galena Summit	8790	17.8	18.2	98	18.7	18.2	103
Hyndman	7590	8.4	11.2	75	16.2	14.0	116
Lost-Wood Divide	7870	16.3	17.6	93	19.9	18.6	107
Vienna Mine	8930	28.2	30.0	94	30.6	29.2	105
Basin Index (%)		92			105
CAMAS BASIN
Camas Creek Divide	5720	0.0	11.5₍₂₈₎	0	15.7	16.4₍₂₈₎	96
Soldier R.S.	5780	0.0	10.2	0	14.6	16.1	91
Basin Index (%)		0			93
BIG WOOD BASIN
Camas Creek Divide	5720	0.0	11.5₍₂₈₎	0	15.7	16.4₍₂₈₎	96
Chocolate Gulch	6310	5.4	11.4₍₂₇₎	47	15.5	13.9₍₂₇₎	112
Dollarhide Summit	8390	27.5	21.9	126	20.7	23.2	89
Galena	7470	11.9	15.4	77	18.2	16.6	110
Galena Summit	8790	17.8	18.2	98	18.7	18.2	103
Hyndman	7590	8.4	11.2	75	16.2	14.0	116
Lost-Wood Divide	7870	16.3	17.6	93	19.9	18.6	107
Soldier R.S.	5780	0.0	10.2	0	14.6	16.1	91
Vienna Mine	8930	28.2	30.0	94	30.6	29.2	105
Basin Index (%)		78			102
LITTLE WOOD BASIN
Bear Canyon	7920	13.5	13.6	99	20.6	15.5	133
Garfield R.S.	6580	0.0	8.4	0	14.4	11.2	129
Hyndman	7590	8.4	11.2	75	16.2	14.0	116
Smiley Mountain	9540	19.7	17.3₍₁₉₎	114	20.7	17.0₍₁₉₎	122
Swede Peak	7640	7.7	13.2	58	17.0	14.9	114
Basin Index (%)		77			122
UPPER BIG LOST BASIN
Bear Canyon	7920	13.5	13.6	99	20.6	15.5	133
Lost-Wood Divide	7870	16.3	17.6	93	19.9	18.6	107
Smiley Mountain	9540	19.7	17.3₍₁₉₎	114	20.7	17.0₍₁₉₎	122
Stickney Mill	7440	5.8	7.4	78	13.3	9.8	136
Basin Index (%)		99			122
BIG LOST BASIN
Bear Canyon	7920	13.5	13.6	99	20.6	15.5	133
Hilts Creek	8090	10.6	11.6	91	14.9	11.7	127
Lost-Wood Divide	7870	16.3	17.6	93	19.9	18.6	107
Smiley Mountain	9540	19.7	17.3₍₁₉₎	114	20.7	17.0₍₁₉₎	122
Stickney Mill	7440	5.8	7.4	78	13.3	9.8	136
Basin Index (%)		98			123
LITTLE LOST BASIN
Hilts Creek	8090	10.6	11.6	91	14.9	11.7	127
Meadow Lake	9190	15.0	13.9	108	18.4	14.8	124
Moonshine	7490	6.2	8.8	70	13.1	11.6	113
Basin Index (%)		93			122
BIRCH BASIN
Meadow Lake	9190	15.0	13.9	108	18.4	14.8	124
Beagle Springs	8880	6.9	8.3	83	10.8	8.6	126
Basin Index (%)		99			125
MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8880	6.9	8.3	83	10.8	8.6	126
Crab Creek	6870	5.8	12.4	47	13.9	13.9	100
Lakeview Ridge	7340	3.1	9.4	33	15.5	12.8	121
Basin Index (%)		52			114
HENRYS FORK ABOVE ISLAND PARK
Black Bear	8160	24.6	36.2	68	32.0	33.4	96
Island Park	6300	5.8	13.7	42	13.3	17.0	78
White Elephant	7670	15.9	24.4	65	23.7	26.0	91
Basin Index (%)		62			90
FALLS BASIN
Grassy Lake	7330	15.4	30.6	50	28.7	32.5	88
Lewis Lake Divide	7880	27.3	29.0	94	36.0	30.4	118
Basin Index (%)		72			103
HENRYS FORK ABOVE ST. ANTHONY
Black Bear	8160	24.6	36.2	68	32.0	33.4	96
Grassy Lake	7330	15.4	30.6	50	28.7	32.5	88
Island Park	6300	5.8	13.7	42	13.3	17.0	78
Lewis Lake Divide	7880	27.3	29.0	94	36.0	30.4	118
White Elephant	7670	15.9	24.4	65	23.7	26.0	91
Basin Index (%)		66			96
TETON BASIN
Grand Targhee	9260	-M	38.1₍₁₄₎	*	-M	28.6₍₁₄₎	*
Phillips Bench	8170	18.9	23.8	79	25.9	25.1	103
Pine Creek Pass	6710	3.1	14.2	22	17.4	20.4	85
Basin Index (%)		58			95
HENRYS FORK ABOVE REXBURG
Black Bear	8160	24.6	36.2	68	32.0	33.4	96
Grand Targhee	9260	-M	38.1₍₁₄₎	*	-M	28.6₍₁₄₎	*
Grassy Lake	7330	15.4	30.6	50	28.7	32.5	88
Island Park	6300	5.8	13.7	42	13.3	17.0	78
Lewis Lake Divide	7880	27.3	29.0	94	36.0	30.4	118
Phillips Bench	8170	18.9	23.8	79	25.9	25.1	103
Pine Creek Pass	6710	3.1	14.2	22	17.4	20.4	85
White Elephant	7670	15.9	24.4	65	23.7	26.0	91
Basin Index (%)		65			96
SNAKE BASIN ABOVE JACKSON LAKE
Grassy Lake	7330	15.4	30.6	50	28.7	32.5	88
Lewis Lake Divide	7880	27.3	29.0	94	36.0	30.4	118
Snake River Station	6900	8.3	16.6	50	20.1	20.1	100
Thumb Divide	7970	14.4	14.9	97	19.5	15.8	123
Two Ocean Plateau	9240	31.8	26.8	119	30.4	24.0	127
Basin Index (%)		82			110
PACIFIC AND BUFFALO BASINS
Base Camp	7040	13.1	15.9	82	22.3	18.9	118
Togwotee Pass	9590	19.4	21.9	89	26.9	22.6	119
Two Ocean Plateau	9240	31.8	26.8	119	30.4	24.0	127
Basin Index (%)		100			122
GROS VENTRE BASIN
Gros Ventre Summit	8760	10.9	11.6	94	14.3	11.2	128
Gunsight Pass	9820	11.5	12.1₍₂₂₎	95	15.1	12.7₍₂₂₎	119
Togwotee Pass	9590	19.4	21.9	89	26.9	22.6	119
Basin Index (%)		92			121
HOBACK BASIN
Blind Bull Sum	8880	21.9	22.4	98	15.7	16.8	93
East Rim Divide	8010	5.3	10.2	52	11.0	10.4	106
Granite Creek	6770	10.7	15.6	69	19.9	17.0	117
Gros Ventre Summit	8760	10.9	11.6	94	14.3	11.2	128
Loomis Park	8240	9.6	14.4	67	15.4	15.6	99
Basin Index (%)		79			107
GREYS BASIN
Blind Bull Sum	8880	21.9	22.4	98	15.7	16.8	93
Cottonwood Creek	7710	14.8	20.6	72	23.8	23.3	102
Spring Creek Divide	9020	20.7	23.0	90	23.3	22.1	105
Willow Creek	8060	20.1	27.5	73	29.2	30.2	97
Basin Index (%)		83			100
SALT BASIN
Cottonwood Creek	7710	14.8	20.6	72	23.8	23.3	102
Salt River Summit	7630	6.5	12.6	52	15.2	14.2	107
Willow Creek	8060	20.1	27.5	73	29.2	30.2	97
Basin Index (%)		68			101
SNAKE BASIN ABOVE PALISADES
Base Camp	7040	13.1	15.9	82	22.3	18.9	118
Blind Bull Sum	8880	21.9	22.4	98	15.7	16.8	93
Cottonwood Creek	7710	14.8	20.6	72	23.8	23.3	102
East Rim Divide	8010	5.3	10.2	52	11.0	10.4	106
Granite Creek	6770	10.7	15.6	69	19.9	17.0	117
Grassy Lake	7330	15.4	30.6	50	28.7	32.5	88
Gros Ventre Summit	8760	10.9	11.6	94	14.3	11.2	128
Gunsight Pass	9820	11.5	12.1₍₂₂₎	95	15.1	12.7₍₂₂₎	119
Lewis Lake Divide	7880	27.3	29.0	94	36.0	30.4	118
Loomis Park	8240	9.6	14.4	67	15.4	15.6	99
Phillips Bench	8170	18.9	23.8	79	25.9	25.1	103
Salt River Summit	7630	6.5	12.6	52	15.2	14.2	107
Snake River Station	6900	8.3	16.6	50	20.1	20.1	100
Spring Creek Divide	9020	20.7	23.0	90	23.3	22.1	105
Thumb Divide	7970	14.4	14.9	97	19.5	15.8	123
Togwotee Pass	9590	19.4	21.9	89	26.9	22.6	119
Two Ocean Plateau	9240	31.8	26.8	119	30.4	24.0	127
Willow Creek	8060	20.1	27.5	73	29.2	30.2	97
Basin Index (%)		80			108
WILLOW BASIN
Sheep Mtn.	6630	-M	13.0	*	12.8	14.8	86
Somsen Ranch	6830	-M	11.6	*	15.9	15.0	106
Basin Index (%)		*			96
BLACKFOOT BASIN
Slug Creek Divide	7240	6.4	13.6	47	19.4	18.6	104
Somsen Ranch	6830	-M	11.6	*	15.9	15.0	106
Basin Index (%)		47			105
PORTNEUF BASIN
Oxford Spring	6790	0.2	8.4₍₂₉₎	2	15.6	14.8	105
Sedgwick Peak	7800	10.0	18.1	55	19.7	19.0	104
Wildhorse Divide	6480	5.2	14.7	35	18.2	18.7	97
Basin Index (%)		37			102
SNAKE BASIN AB AMERICAN FALLS
Base Camp	7040	13.1	15.9	82	22.3	18.9	118
Black Bear	8160	24.6	36.2	68	32.0	33.4	96
Blind Bull Sum	8880	21.9	22.4	98	15.7	16.8	93
Cottonwood Creek	7710	14.8	20.6	72	23.8	23.3	102
East Rim Divide	8010	5.3	10.2	52	11.0	10.4	106
Grand Targhee	9260	-M	38.1₍₁₄₎	*	-M	28.6₍₁₄₎	*
Granite Creek	6770	10.7	15.6	69	19.9	17.0	117
Grassy Lake	7330	15.4	30.6	50	28.7	32.5	88
Gros Ventre Summit	8760	10.9	11.6	94	14.3	11.2	128
Gunsight Pass	9820	11.5	12.1₍₂₂₎	95	15.1	12.7₍₂₂₎	119
Island Park	6300	5.8	13.7	42	13.3	17.0	78
Lewis Lake Divide	7880	27.3	29.0	94	36.0	30.4	118
Loomis Park	8240	9.6	14.4	67	15.4	15.6	99
Oxford Spring	6790	0.2	8.4₍₂₉₎	2	15.6	14.8	105
Phillips Bench	8170	18.9	23.8	79	25.9	25.1	103
Pine Creek Pass	6710	3.1	14.2	22	17.4	20.4	85
Salt River Summit	7630	6.5	12.6	52	15.2	14.2	107
Sedgwick Peak	7800	10.0	18.1	55	19.7	19.0	104
Sheep Mtn.	6630	-M	13.0	*	12.8	14.8	86
Slug Creek Divide	7240	6.4	13.6	47	19.4	18.6	104
Snake River Station	6900	8.3	16.6	50	20.1	20.1	100
Somsen Ranch	6830	-M	11.6	*	15.9	15.0	106
Spring Creek Divide	9020	20.7	23.0	90	23.3	22.1	105
Thumb Divide	7970	14.4	14.9	97	19.5	15.8	123
Togwotee Pass	9590	19.4	21.9	89	26.9	22.6	119
Two Ocean Plateau	9240	31.8	26.8	119	30.4	24.0	127
White Elephant	7670	15.9	24.4	65	23.7	26.0	91
Wildhorse Divide	6480	5.2	14.7	35	18.2	18.7	97
Willow Creek	8060	20.1	27.5	73	29.2	30.2	97
Basin Index (%)		71			104
RAFT BASIN
George Creek	8960	14.4	19.0₍₁₀₎	76	18.1	19.0₍₁₀₎	95
Howell Canyon	8010	16.5	25.0	66	23.8	25.4	94
Basin Index (%)		70			94
GOOSE CREEK BASIN
Bostetter R.S.	7530	3.7	15.2	24	14.8	16.6	89
Magic Mountain	6940	4.5	18.4	24	13.3	20.3	66
Basin Index (%)		24			76
SALMON FALLS BASIN
Bear Creek	8090	-M	17.5	*	13.7	19.2	71
Bostetter R.S.	7530	3.7	15.2	24	14.8	16.6	89
Magic Mountain	6940	4.5	18.4	24	13.3	20.3	66
Pole Creek R.S.	8370	10.6	18.0	59	10.8	10.2	106
Wilson Creek	7110	-M	13.0	*	13.1	15.4	85
Basin Index (%)		36			80
JARBIDGE BASIN
Bear Creek	8090	-M	17.5	*	13.7	19.2	71
Seventysix Creek	7360	0.1	9.0	1	10.0	13.0	77
Pole Creek R.S.	8370	10.6	18.0	59	10.8	10.2	106
Basin Index (%)		40			81
BRUNEAU BASIN
Bear Creek	8090	-M	17.5	*	13.7	19.2	71
Big Bend	6890	0.0	8.2	0	8.8	9.6	92
Pole Creek R.S.	8370	10.6	18.0	59	10.8	10.2	106
Seventysix Creek	7360	0.1	9.0	1	10.0	13.0	77
Wilson Creek	7110	-M	13.0	*	13.1	15.4	85
Basin Index (%)		30			84
OWYHEE BASIN
Big Bend	6890	0.0	8.2	0	8.8	9.6	92
Fawn Creek	7040	0.0	14.0	0	13.2	19.0	69
Jack Creek Upper	7380	0.0	15.2	0	12.9	16.9	76
Laurel Draw	6680	0.0	8.2	0	13.0	15.6	83
Mud Flat	5750	0.0	3.3	0	6.8	10.0	68
Reynolds Creek	5590	0.0	N/A	*	12.0	11.8₍₁₈₎	102
South Mtn.	6650	0.0	13.5	0	17.0	20.8	82
Taylor Canyon	6320	0.1	2.5	4	7.6	7.2	106
Basin Index (%)		0			82
BEAR BASIN ABOVE WOODRUFF
Bug Lake	7980	9.8	17.1	57	18.7	16.0	117
Dry Bread Pond	8290	8.4	16.8	50	17.6	17.7	99
Hayden Fork	9170	7.5	13.6	55	17.1	18.3	93
Lily Lake	9130	5.3	11.6	46	11.6	13.9	83
Monte Cristo	8930	16.4	24.6	67	23.8	22.8	104
Trial Lake	9970	15.7	20.4	77	19.0	20.1	95
Basin Index (%)		61			99
SMITH FORK
Kelley R.S.	8240	10.3	13.8	75	16.2	14.7	110
Salt River Summit	7630	6.5	12.6	52	15.2	14.2	107
Spring Creek Divide	9020	20.7	23.0	90	23.3	22.1	105
Basin Index (%)		76			107
BEAR BASIN ABOVE PRESTON
Bug Lake	7980	9.8	17.1	57	18.7	16.0	117
Dry Bread Pond	8290	8.4	16.8	50	17.6	17.7	99
Emigrant Summit	7390	11.0	20.2	54	22.1	21.8	101
Franklin Basin	8140	19.4	24.4	80	29.2	26.0	112
Giveout	6940	-M	7.8	*	13.5	10.7	126
Hayden Fork	9170	7.5	13.6	55	17.1	18.3	93
Kelley R.S.	8240	10.3	13.8	75	16.2	14.7	110
Lily Lake	9130	5.3	11.6	46	11.6	13.9	83
Monte Cristo	8930	16.4	24.6	67	23.8	22.8	104
Oxford Spring	6790	0.2	8.4₍₂₉₎	2	15.6	14.8	105
Salt River Summit	7630	6.5	12.6	52	15.2	14.2	107
Sedgwick Peak	7800	10.0	18.1	55	19.7	19.0	104
Slug Creek Divide	7240	6.4	13.6	47	19.4	18.6	104
Spring Creek Divide	9020	20.7	23.0	90	23.3	22.1	105
Trial Lake	9970	15.7	20.4	77	19.0	20.1	95
Basin Index (%)		62			104
MALAD BASIN
Oxford Spring	6790	0.2	8.4₍₂₉₎	2	15.6	14.8	105
Basin Index (%)		2			105

-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.