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, April 01, 2025

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	30.9	20.0	154	30.7	25.3	121
Puhi Flat	6240	31.5	23.0	137	36.6	30.5	120
Van Wyck	4960	0.0	0.2₍₁₉₎	0*	18.4	17.8₍₁₉₎	103
West Branch	5590	28.0	21.0	133	37.6	29.4	128
Basin Index (%)		141			120
NF PAYETTE BASIN
Bear Basin	5350	22.9	16.9	136	27.8	24.1	115
Big Creek Summit	6560	38.3	31.4	122	35.2	34.1	103
Brundage Reservoir	6280	40.5	30.9	131	40.9	36.5	112
Long Valley	4890	7.6	1.7₍₁₉₎	447	21.0	16.1₍₁₉₎	130
Secesh Summit	6520	43.2	30.4	142	39.7	28.0	142
Puhi Flat	6240	31.5	23.0	137	36.6	30.5	120
Basin Index (%)		137			119
SF PAYETTE BASIN
Banner Summit	7040	30.3	26.1	116	32.2	29.6	109
Cozy Cove	5410	-M	12.7	*	24.1	22.0	110
Deadwood Summit	6990	50.2	39.2	128	47.3	42.1	112
Jackson Peak	7060	32.6	27.1	120	36.3	31.4	116
Basin Index (%)		122			112
PAYETTE BASIN
Banner Summit	7040	30.3	26.1	116	32.2	29.6	109
Bear Basin	5350	22.9	16.9	136	27.8	24.1	115
Big Creek Summit	6560	38.3	31.4	122	35.2	34.1	103
Bogus Basin	6370	33.1	24.3₍₂₁₎	136	30.4	21.6₍₂₁₎	141
Brundage Reservoir	6280	40.5	30.9	131	40.9	36.5	112
Cozy Cove	5410	-M	12.7	*	24.1	22.0	110
Deadwood Summit	6990	50.2	39.2	128	47.3	42.1	112
Jackson Peak	7060	32.6	27.1	120	36.3	31.4	116
Long Valley	4890	7.6	1.7₍₁₉₎	447	21.0	16.1₍₁₉₎	130
Secesh Summit	6520	43.2	30.4	142	39.7	28.0	142
Puhi Flat	6240	31.5	23.0	137	36.6	30.5	120
Basin Index (%)		132			118
MF AND NF BOISE BASINS
Atlanta Summit	7570	37.0	28.0	132	32.6	31.0	105
Graham Guard Sta.	5680	16.8	11.8	142	24.6	21.6	114
Jackson Peak	7060	32.6	27.1	120	36.3	31.4	116
Mores Creek Summit	6090	37.5	31.1	121	39.0	35.1	111
Trinity Mtn.	7790	39.0	35.1	111	39.1	36.6	107
Basin Index (%)		122			110
SF BOISE BASIN
Atlanta Summit	7570	37.0	28.0	132	32.6	31.0	105
Camas Creek Divide	5720	15.7	10.8₍₂₈₎	145	19.6	16.8₍₂₈₎	117
Dollarhide Summit	8390	25.1	23.0	109	19.2	24.2	79
Prairie	4800	2.4	0.0	*	17.3	15.2	114
Trinity Mtn.	7790	39.0	35.1	111	39.1	36.6	107
Vienna Mine	8930	32.0	30.4	105	29.6	30.5	97
Basin Index (%)		119			102
MORES CREEK BASIN
Bogus Basin	6370	33.1	24.3₍₂₁₎	136	30.4	21.6₍₂₁₎	141
Mores Creek Summit	6090	37.5	31.1	121	39.0	35.1	111
Basin Index (%)		127			122
BOISE BASIN
Atlanta Summit	7570	37.0	28.0	132	32.6	31.0	105
Bogus Basin	6370	33.1	24.3₍₂₁₎	136	30.4	21.6₍₂₁₎	141
Camas Creek Divide	5720	15.7	10.8₍₂₈₎	145	19.6	16.8₍₂₈₎	117
Dollarhide Summit	8390	25.1	23.0	109	19.2	24.2	79
Graham Guard Sta.	5680	16.8	11.8	142	24.6	21.6	114
Jackson Peak	7060	32.6	27.1	120	36.3	31.4	116
Mores Creek Summit	6090	37.5	31.1	121	39.0	35.1	111
Prairie	4800	2.4	0.0	*	17.3	15.2	114
Trinity Mtn.	7790	39.0	35.1	111	39.1	36.6	107
Vienna Mine	8930	32.0	30.4	105	29.6	30.5	97
Basin Index (%)		122			109
BIG WOOD BASIN ABOVE HAILEY
Chocolate Gulch	6310	13.1	11.7₍₂₇₎	112	14.3	14.1₍₂₇₎	101
Dollarhide Summit	8390	25.1	23.0	109	19.2	24.2	79
Galena	7470	17.6	15.3	115	17.5	16.8	104
Galena Summit	8780	21.1	19.2	110	20.9	18.9	111
Hyndman	7590	12.1	11.8	103	13.1	14.4	91
Lost-Wood Divide	7870	20.7	18.5	112	18.1	19.4	93
Vienna Mine	8930	32.0	30.4	105	29.6	30.5	97
Basin Index (%)		109			96
CAMAS BASIN
Camas Creek Divide	5720	15.7	10.8₍₂₈₎	145	19.6	16.8₍₂₈₎	117
Soldier R.S.	5780	8.9	8.7	102	17.1	16.4	104
Basin Index (%)		126			111
BIG WOOD BASIN
Camas Creek Divide	5720	15.7	10.8₍₂₈₎	145	19.6	16.8₍₂₈₎	117
Chocolate Gulch	6310	13.1	11.7₍₂₇₎	112	14.3	14.1₍₂₇₎	101
Dollarhide Summit	8390	25.1	23.0	109	19.2	24.2	79
Galena	7470	17.6	15.3	115	17.5	16.8	104
Galena Summit	8780	21.1	19.2	110	20.9	18.9	111
Hyndman	7590	12.1	11.8	103	13.1	14.4	91
Lost-Wood Divide	7870	20.7	18.5	112	18.1	19.4	93
Soldier R.S.	5780	8.9	8.7	102	17.1	16.4	104
Vienna Mine	8930	32.0	30.4	105	29.6	30.5	97
Basin Index (%)		111			99
LITTLE WOOD BASIN
Bear Canyon	7920	15.1	13.6	111	15.4	16.1	96
Garfield R.S.	6580	6.3	7.8	81	10.1	11.8	86
Hyndman	7590	12.1	11.8	103	13.1	14.4	91
Smiley Mountain	9540	17.1	17.8₍₁₉₎	96	16.2	17.9₍₁₉₎	91
Swede Peak	7640	12.1	13.4	90	13.6	15.5	88
Basin Index (%)		97			90
UPPER BIG LOST BASIN
Bear Canyon	7920	15.1	13.6	111	15.4	16.1	96
Lost-Wood Divide	7870	20.7	18.5	112	18.1	19.4	93
Smiley Mountain	9540	17.1	17.8₍₁₉₎	96	16.2	17.9₍₁₉₎	91
Stickney Mill	7440	7.8	7.9	99	9.1	10.2	89
Basin Index (%)		105			92
BIG LOST BASIN
Bear Canyon	7920	15.1	13.6	111	15.4	16.1	96
Hilts Creek	8090	10.3	12.0	86	10.4	12.2	85
Lost-Wood Divide	7870	20.7	18.5	112	18.1	19.4	93
Smiley Mountain	9540	17.1	17.8₍₁₉₎	96	16.2	17.9₍₁₉₎	91
Stickney Mill	7440	7.8	7.9	99	9.1	10.2	89
Basin Index (%)		102			91
LITTLE LOST BASIN
Hilts Creek	8090	10.3	12.0	86	10.4	12.2	85
Meadow Lake	9190	14.2	14.8	96	14.4	15.8	91
Moonshine	7490	9.9	8.8	112	10.8	12.2	89
Basin Index (%)		97			89
BIRCH BASIN
Meadow Lake	9190	14.2	14.8	96	14.4	15.8	91
Beagle Springs	8880	9.4	9.3	101	8.7	9.4	93
Basin Index (%)		98			92
MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8880	9.4	9.3	101	8.7	9.4	93
Crab Creek	6870	10.8	13.0	83	12.3	15.0	82
Lakeview Ridge	7340	6.7	9.8	68	10.8	13.4	81
Basin Index (%)		84			84
HENRYS FORK ABOVE ISLAND PARK
Black Bear	8160	33.1	37.0	89	33.9	35.6	95
Island Park	6300	13.1	14.0	94	16.4	17.4	94
White Elephant	7670	25.4	26.6	95	26.0	27.2	96
Basin Index (%)		92			95
FALLS BASIN
Grassy Lake	7330	31.5	31.8	99	34.4	33.4	103
Lewis Lake Divide	7880	32.1	30.0	107	34.8	31.8	109
Basin Index (%)		103			106
HENRYS FORK ABOVE ST. ANTHONY
Black Bear	8160	33.1	37.0	89	33.9	35.6	95
Grassy Lake	7330	31.5	31.8	99	34.4	33.4	103
Island Park	6300	13.1	14.0	94	16.4	17.4	94
Lewis Lake Divide	7880	32.1	30.0	107	34.8	31.8	109
White Elephant	7670	25.4	26.6	95	26.0	27.2	96
Basin Index (%)		97			100
TETON BASIN
Grand Targhee	9260	39.5	40.8₍₁₄₎	97	29.8	29.9₍₁₄₎	100
Phillips Bench	8160	26.3	25.9	102	26.7	26.1	102
Pine Creek Pass	6710	18.0	14.4	125	21.6	21.3	101
Basin Index (%)		103			101
HENRYS FORK ABOVE REXBURG
Black Bear	8160	33.1	37.0	89	33.9	35.6	95
Grand Targhee	9260	39.5	40.8₍₁₄₎	97	29.8	29.9₍₁₄₎	100
Grassy Lake	7330	31.5	31.8	99	34.4	33.4	103
Island Park	6300	13.1	14.0	94	16.4	17.4	94
Lewis Lake Divide	7880	32.1	30.0	107	34.8	31.8	109
Phillips Bench	8160	26.3	25.9	102	26.7	26.1	102
Pine Creek Pass	6710	18.0	14.4	125	21.6	21.3	101
White Elephant	7670	25.4	26.6	95	26.0	27.2	96
Basin Index (%)		99			100
SNAKE BASIN ABOVE JACKSON LAKE
Grassy Lake	7330	31.5	31.8	99	34.4	33.4	103
Lewis Lake Divide	7880	32.1	30.0	107	34.8	31.8	109
Snake River Station	6900	19.2	16.8	114	21.8	21.3	102
Thumb Divide	7970	14.8	15.8	94	14.4	17.0	85
Two Ocean Plateau	9240	28.6	28.2	101	24.7	25.4	97
Basin Index (%)		103			101
PACIFIC AND BUFFALO BASINS
Base Camp	7040	18.2	16.6	110	20.7	19.6	106
Togwotee Pass	9590	24.2	22.9	106	25.6	24.0	107
Two Ocean Plateau	9240	28.6	28.2	101	24.7	25.4	97
Basin Index (%)		105			103
GROS VENTRE BASIN
Gros Ventre Summit	8760	13.1	12.8	102	13.3	12.0	111
Gunsight Pass	9830	13.7	12.6₍₂₂₎	109	13.7	13.4₍₂₂₎	102
Togwotee Pass	9590	24.2	22.9	106	25.6	24.0	107
Basin Index (%)		106			106
HOBACK BASIN
Blind Bull Sum	8880	26.6	23.5	113	18.7	17.5	107
East Rim Divide	8010	10.7	10.4	103	11.6	10.9	106
Granite Creek	6770	18.0	15.8	114	18.1	17.8	102
Gros Ventre Summit	8760	13.1	12.8	102	13.3	12.0	111
Loomis Park	8240	14.9	15.3	97	16.6	16.4	101
Basin Index (%)		107			105
GREYS BASIN
Blind Bull Sum	8880	26.6	23.5	113	18.7	17.5	107
Cottonwood Creek	7710	24.7	21.5	115	27.9	24.4	114
Spring Creek Divide	9020	26.7	24.2	110	25.4	23.1	110
Willow Creek	8060	35.4	29.0	122	36.1	31.8	114
Basin Index (%)		115			112
SALT BASIN
Cottonwood Creek	7710	24.7	21.5	115	27.9	24.4	114
Salt River Summit	7630	15.5	13.4	116	13.7	15.5	88
Willow Creek	8060	35.4	29.0	122	36.1	31.8	114
Basin Index (%)		118			108
SNAKE BASIN ABOVE PALISADES
Base Camp	7040	18.2	16.6	110	20.7	19.6	106
Blind Bull Sum	8880	26.6	23.5	113	18.7	17.5	107
Cottonwood Creek	7710	24.7	21.5	115	27.9	24.4	114
East Rim Divide	8010	10.7	10.4	103	11.6	10.9	106
Granite Creek	6770	18.0	15.8	114	18.1	17.8	102
Grassy Lake	7330	31.5	31.8	99	34.4	33.4	103
Gros Ventre Summit	8760	13.1	12.8	102	13.3	12.0	111
Gunsight Pass	9830	13.7	12.6₍₂₂₎	109	13.7	13.4₍₂₂₎	102
Lewis Lake Divide	7880	32.1	30.0	107	34.8	31.8	109
Loomis Park	8240	14.9	15.3	97	16.6	16.4	101
Phillips Bench	8160	26.3	25.9	102	26.7	26.1	102
Salt River Summit	7630	15.5	13.4	116	13.7	15.5	88
Snake River Station	6900	19.2	16.8	114	21.8	21.3	102
Spring Creek Divide	9020	26.7	24.2	110	25.4	23.1	110
Thumb Divide	7970	14.8	15.8	94	14.4	17.0	85
Togwotee Pass	9590	24.2	22.9	106	25.6	24.0	107
Two Ocean Plateau	9240	28.6	28.2	101	24.7	25.4	97
Willow Creek	8060	35.4	29.0	122	36.1	31.8	114
Basin Index (%)		108			104
WILLOW BASIN
Sheep Mtn.	6630	13.1	12.0	109	15.8	15.6	101
Somsen Ranch	6830	13.8	11.4	121	16.7	16.3	102
Basin Index (%)		115			102
BLACKFOOT BASIN
Slug Creek Divide	7240	18.1	14.5	125	22.1	20.1	110
Somsen Ranch	6830	13.8	11.4	121	16.7	16.3	102
Basin Index (%)		123			107
PORTNEUF BASIN
Oxford Spring	6790	8.2	7.9₍₂₉₎	104	17.3	15.6	111
Sedgwick Peak	7800	21.4	19.4	110	22.0	19.6	112
Wildhorse Divide	6480	21.5	15.6	138	23.7	18.8	126
Basin Index (%)		119			117
SNAKE BASIN AB AMERICAN FALLS
Base Camp	7040	18.2	16.6	110	20.7	19.6	106
Black Bear	8160	33.1	37.0	89	33.9	35.6	95
Blind Bull Sum	8880	26.6	23.5	113	18.7	17.5	107
Cottonwood Creek	7710	24.7	21.5	115	27.9	24.4	114
East Rim Divide	8010	10.7	10.4	103	11.6	10.9	106
Grand Targhee	9260	39.5	40.8₍₁₄₎	97	29.8	29.9₍₁₄₎	100
Granite Creek	6770	18.0	15.8	114	18.1	17.8	102
Grassy Lake	7330	31.5	31.8	99	34.4	33.4	103
Gros Ventre Summit	8760	13.1	12.8	102	13.3	12.0	111
Gunsight Pass	9830	13.7	12.6₍₂₂₎	109	13.7	13.4₍₂₂₎	102
Island Park	6300	13.1	14.0	94	16.4	17.4	94
Lewis Lake Divide	7880	32.1	30.0	107	34.8	31.8	109
Loomis Park	8240	14.9	15.3	97	16.6	16.4	101
Oxford Spring	6790	8.2	7.9₍₂₉₎	104	17.3	15.6	111
Phillips Bench	8160	26.3	25.9	102	26.7	26.1	102
Pine Creek Pass	6710	18.0	14.4	125	21.6	21.3	101
Salt River Summit	7630	15.5	13.4	116	13.7	15.5	88
Sedgwick Peak	7800	21.4	19.4	110	22.0	19.6	112
Sheep Mtn.	6630	13.1	12.0	109	15.8	15.6	101
Slug Creek Divide	7240	18.1	14.5	125	22.1	20.1	110
Snake River Station	6900	19.2	16.8	114	21.8	21.3	102
Somsen Ranch	6830	13.8	11.4	121	16.7	16.3	102
Spring Creek Divide	9020	26.7	24.2	110	25.4	23.1	110
Thumb Divide	7970	14.8	15.8	94	14.4	17.0	85
Togwotee Pass	9590	24.2	22.9	106	25.6	24.0	107
Two Ocean Plateau	9240	28.6	28.2	101	24.7	25.4	97
White Elephant	7670	25.4	26.6	95	26.0	27.2	96
Wildhorse Divide	6480	21.5	15.6	138	23.7	18.8	126
Willow Creek	8060	35.4	29.0	122	36.1	31.8	114
Basin Index (%)		107			104
RAFT BASIN
George Creek	8960	20.3	20.6₍₁₀₎	99	19.7	20.0₍₁₀₎	98
Howell Canyon	8010	28.0	25.4	110	28.5	27.0	106
Basin Index (%)		105			103
GOOSE CREEK BASIN
Bostetter R.S.	7530	19.8	15.5	128	20.5	17.4	118
Magic Mountain	6940	24.5	18.2	135	22.3	21.2	105
Basin Index (%)		131			111
SALMON FALLS BASIN
Bear Creek	8090	20.1	18.0	112	21.2	20.4	104
Bostetter R.S.	7530	19.8	15.5	128	20.5	17.4	118
Magic Mountain	6940	24.5	18.2	135	22.3	21.2	105
Pole Creek R.S.	8360	22.7	18.8	121	12.5	10.8	116
Wilson Creek	7110	11.4	11.2	102	18.1	16.4	110
Basin Index (%)		121			110
JARBIDGE BASIN
Bear Creek	8090	20.1	18.0	112	21.2	20.4	104
Seventysix Creek	7360	11.9	8.8	135	15.6	13.1	119
Pole Creek R.S.	8360	22.7	18.8	121	12.5	10.8	116
Basin Index (%)		120			111
BRUNEAU BASIN
Bear Creek	8090	20.1	18.0	112	21.2	20.4	104
Big Bend	6890	8.6	7.8	110	12.7	9.8	130
Pole Creek R.S.	8360	22.7	18.8	121	12.5	10.8	116
Seventysix Creek	7360	11.9	8.8	135	15.6	13.1	119
Wilson Creek	7110	11.4	11.2	102	18.1	16.4	110
Basin Index (%)		116			114
OWYHEE BASIN
Big Bend	6890	8.6	7.8	110	12.7	9.8	130
Fawn Creek	7040	17.6	14.8	119	21.0	19.8	106
Jack Creek Upper	7380	19.3	16.1	120	19.4	17.6	110
Laurel Draw	6680	11.9	8.0	149	20.5	16.1	127
Mud Flat	5750	0.0	1.2	0	11.4	10.2	112
Reynolds Creek	5590	0.0	N/A	*	15.5	12.7₍₁₈₎	122
South Mtn.	6650	18.7	13.9	135	30.1	22.4	134
Taylor Canyon	6320	0.0	0.0	*	7.6	7.6	100
Basin Index (%)		123			119
BEAR BASIN ABOVE WOODRUFF
Bug Lake	7980	18.4	18.6	99	19.4	17.6	110
Dry Bread Pond	8290	18.6	17.8	104	19.8	19.0	104
Hayden Fork	9160	13.0	14.6	89	21.0	19.8	106
Lily Lake	9130	11.9	12.2	98	14.9	14.6	102
Monte Cristo	8930	25.2	26.4	95	24.4	25.6	95
Trial Lake	9970	24.6	21.5	114	24.1	21.8	111
Basin Index (%)		101			104
SMITH FORK
Kelley R.S.	8240	17.3	14.6	118	18.0	15.6	115
Salt River Summit	7630	15.5	13.4	116	13.7	15.5	88
Spring Creek Divide	9020	26.7	24.2	110	25.4	23.1	110
Basin Index (%)		114			105
BEAR BASIN ABOVE PRESTON
Bug Lake	7980	18.4	18.6	99	19.4	17.6	110
Dry Bread Pond	8290	18.6	17.8	104	19.8	19.0	104
Emigrant Summit	7390	25.1	22.0	114	25.8	23.4	110
Franklin Basin	8140	28.3	26.2	108	29.8	28.0	106
Giveout	6940	9.0	8.2	110	12.4	11.6	107
Hayden Fork	9160	13.0	14.6	89	21.0	19.8	106
Kelley R.S.	8240	17.3	14.6	118	18.0	15.6	115
Lily Lake	9130	11.9	12.2	98	14.9	14.6	102
Monte Cristo	8930	25.2	26.4	95	24.4	25.6	95
Oxford Spring	6790	8.2	7.9₍₂₉₎	104	17.3	15.6	111
Salt River Summit	7630	15.5	13.4	116	13.7	15.5	88
Sedgwick Peak	7800	21.4	19.4	110	22.0	19.6	112
Slug Creek Divide	7240	18.1	14.5	125	22.1	20.1	110
Spring Creek Divide	9020	26.7	24.2	110	25.4	23.1	110
Trial Lake	9970	24.6	21.5	114	24.1	21.8	111
Basin Index (%)		108			107
MALAD BASIN
Oxford Spring	6790	8.2	7.9₍₂₉₎	104	17.3	15.6	111
Basin Index (%)		104			111

-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.