Idaho SNOTEL Snowpack Update Report

Idaho SNOTEL Snowpack 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 Wednesday, April 26, 2017

Basin Site Name	Elev (ft)	Snow Water Equivalent				Percent of
Basin Site Name	Elev (ft)	Current (in)	Today's Median (in)	Median Peak (in)	Median Peak Date	Today's Median	Median Peak
NORTHERN PANHANDLE REGION
Bear Mountain	5460	52.2	58.2₍₂₉₎	58.9₍₂₉₎	Apr 23₍₂₉₎	90	89
Bunchgrass Mdw	5020	27.7	26.7	29.3	Apr 17	104	95
Garver Creek	4250	8.5	5.1	10.2	Apr 03	167	83
Hawkins Lake	6460	33.5	26.4	29.5	Apr 23	127	114
Hidden Lake	5000	33.4	31.6₍₂₀₎	36.1₍₂₀₎	Apr 15₍₂₀₎	106	93
Mosquito Ridge	5270	28.2	30.7₍₂₉₎	34.2₍₂₉₎	Apr 15₍₂₉₎	92	82
Moyie Mountain	6037	22.6	17.6₍₂₂₎	20.4₍₂₂₎	Apr 15₍₂₂₎	128₍₂₂₎	111₍₂₂₎
Myrtle Creek	3540	0.0	0.0₍₁₇₎	5.7₍₁₇₎	Feb 27₍₁₇₎	*	0*
Quartz Peak	4710	14.4	13.4	21.5	Mar 25	107	67
Schweitzer Basin	6090	54.5	49.0	51.0	Apr 21	111	107
Basin Index (%)		106
COEUR D'ALENE-ST. JOE RIVER BASIN
Humboldt Gulch	4260	4.6	4.5₍₂₉₎	11.7₍₂₉₎	Mar 16₍₂₉₎	102	39
Lookout	5180	21.9	23.9	26.7	Apr 09	92	82
Lost Lake	6090	54.4	52.5	55.2	Apr 23	104	99
Mica Creek	4480	17.1	14.4	23.0₍₂₉₎	Mar 29₍₂₉₎	119	74
Mosquito Ridge	5270	28.2	30.7₍₂₉₎	34.2₍₂₉₎	Apr 15₍₂₉₎	92	82
Sherwin	3190	0.0	0.0₍₂₉₎	9.6₍₂₉₎	Mar 06₍₂₉₎	*	0*
Sunset	5580	20.8	19.9	23.0	Apr 15	105	90
Basin Index (%)		101
CLEARWATER BASIN
Cool Creek	6310	47.6	45.8	46.4₍₂₉₎	Apr 27₍₂₉₎	104	103
Crater Meadows	5960	45.2	45.1	50.1	Apr 17	100	90
Elk Butte	5680	35.9	31.8	35.8	Apr 13	113	100
Hemlock Butte	5800	46.6	43.4	48.0	Apr 19	107	97
Hoodoo Basin	6060	45.1	39.7	42.0	Apr 28	114	107
Lolo Pass	5280	23.8	22.0	28.8	Apr 05	108	83
Lost Lake	6090	54.4	52.5	55.2	Apr 23	104	99
Moscow Mountain	4700	11.3	7.4₍₂₀₎	20.2₍₂₀₎	Mar 14₍₂₀₎	153	56
Mountain Meadows	6340	20.9	20.3	23.2	Apr 17	103	90
Nez Perce Camp	5670	11.0	10.7	13.9	Apr 04	103	79
Pierce R.S.	3080	0.0	0.0₍₁₁₎	11.2₍₁₁₎	Mar 10₍₁₁₎	*	0*
Savage Pass	6170	26.3	24.6	27.0	Apr 18	107	97
Shanghi Summit	4590	11.9	15.2	24.8	Mar 30	78	48
Sherwin	3190	0.0	0.0₍₂₉₎	9.6₍₂₉₎	Mar 06₍₂₉₎	*	0*
Twelvemile Creek	5530	8.2	6.8	17.3	Mar 28	121	47
Twin Lakes	6390	37.9	38.6	41.6	Apr 18	98	91
Basin Index (%)		105
SALMON BASIN
Banner Summit	7040	40.7	22.8	27.3	Apr 12	179	149
Bear Basin	5350	14.0	13.0	17.8	Mar 30	108	79
Big Creek Summit	6560	37.9	28.6	32.5	Apr 15	133	117
Brundage Reservoir	6280	32.6	25.2	32.0	Apr 12	129	102
Deadwood Summit	6990	62.8	39.4	42.1	Apr 20	159	149
Galena	7470	25.9	13.2	16.0	Apr 11	196	162
Galena Summit	8780	35.4	18.9	20.8	Apr 21	187	170
Lemhi Ridge	8080	11.1	11.2	12.4	Apr 22	99	90
Meadow Lake	9190	24.7	15.7	17.2	Apr 27	157	144
Mill Creek Summit	8790	35.3	21.4₍₂₉₎	21.9₍₂₉₎	Apr 26₍₂₉₎	165	161
Moonshine	7490	11.3	5.2	10.0	Mar 30	217	113
Moose Creek	6170	8.7	12.2	16.4	Apr 05	71	53
Morgan Creek	7620	9.7	6.4	10.5	Apr 05	152	92
Mountain Meadows	6340	20.9	20.3	23.2	Apr 17	103	90
Saddle Mtn.	7890	26.8	24.2	25.6	Apr 24	111	105
Schwartz Lake	8620	16.8	10.8₍₂₅₎	12.4₍₂₅₎	Apr 20₍₂₅₎	156	135
Secesh Summit	6520	30.8	26.4	32.2	Apr 11	117	96
Puhi Flat	6240	26.0	15.0	23.6	Apr 04	173	110
Vienna Mine	8930	57.3	32.8	34.8	Apr 25	175	165
West Branch	5590	17.0	11.9	22.2	Mar 28	143	77
Basin Index (%)		146
WEISER BASIN
Bear Saddle	6170	19.6	12.2	22.7	Mar 30	161	86
Puhi Flat	6240	26.0	15.0	23.6	Apr 04	173	110
Van Wyck	4960	0.0	0.0₍₁₉₎	7.6₍₁₈₎	Mar 03₍₁₈₎	*	0*
West Branch	5590	17.0	11.9	22.2	Mar 28	143	77
Basin Index (%)		160
PAYETTE BASIN
Banner Summit	7040	40.7	22.8	27.3	Apr 12	179	149
Bear Basin	5350	14.0	13.0	17.8	Mar 30	108	79
Big Creek Summit	6560	37.9	28.6	32.5	Apr 15	133	117
Bogus Basin	6370	23.4	17.5₍₂₁₎	25.9₍₂₁₎	Apr 07₍₂₁₎	134	90
Brundage Reservoir	6280	32.6	25.2	32.0	Apr 12	129	102
Cozy Cove	5410	10.8	2.6	14.1	Mar 22	415	77
Deadwood Summit	6990	62.8	39.4	42.1	Apr 20	159	149
Jackson Peak	7060	38.2	24.4	27.9	Apr 17	157	137
Long Valley	4890	0.0	0.0₍₁₉₎	7.5₍₁₉₎	Mar 12₍₁₉₎	*	0*
Secesh Summit	6520	30.8	26.4	32.2	Apr 11	117	96
Puhi Flat	6240	26.0	15.0	23.6	Apr 04	173	110
Van Wyck	4960	0.0	0.0₍₁₉₎	7.6₍₁₈₎	Mar 03₍₁₈₎	*	0*
Basin Index (%)		148
BOISE BASIN
Atlanta Summit	7570	49.1	26.8	29.1	Apr 17	183	169
Bogus Basin	6370	23.4	17.5₍₂₁₎	25.9₍₂₁₎	Apr 07₍₂₁₎	134	90
Camas Creek Divide	5720	0.0	0.0₍₂₈₎	12.4₍₂₈₎	Mar 16₍₂₈₎	*	0*
Couch Summit	6770	-M	N/A	N/A	N/A	*	*
Dollarhide Summit	8390	47.7	22.2	24.2	Apr 26	215	197
Graham Guard Sta.	5680	4.5	0.9	13.4	Mar 19	500*	34*
Jackson Peak	7060	38.2	24.4	27.9	Apr 17	157	137
Mores Creek Summit	6090	28.2	23.6	31.2	Apr 07	119	90
Prairie	4800	0.0	0.0	5.8	Feb 25	*	0*
Trinity Mtn.	7790	59.4	35.0	37.8	Apr 21	170	157
Vienna Mine	8930	57.3	32.8	34.8	Apr 25	175	165
Basin Index (%)		168
BIG WOOD BASIN
Camas Creek Divide	5720	0.0	0.0₍₂₈₎	12.4₍₂₈₎	Mar 16₍₂₈₎	*	0*
Chocolate Gulch	6310	15.5	5.9₍₂₇₎	12.5₍₂₇₎	Mar 31₍₂₇₎	263	124
Couch Summit	6770	-M	N/A	N/A	N/A	*	*
Dollarhide Summit	8390	47.7	22.2	24.2	Apr 26	215	197
Galena	7470	25.9	13.2	16.0	Apr 11	196	162
Galena Summit	8780	35.4	18.9	20.8	Apr 21	187	170
Hyndman	7590	19.9	7.2	12.2	Apr 06	276	163
Lost-Wood Divide	7870	36.5	14.3	19.0	Apr 12	255	192
Soldier R.S.	5780	0.0	0.0	12.0	Mar 13	*	0*
Basin Index (%)		221
LITTLE WOOD BASIN
Bear Canyon	7920	24.8	12.8	14.2	Apr 18	194	175
Fish Ck	6380	-M	N/A	N/A	N/A	*	*
Garfield R.S.	6580	7.1	0.0	9.2	Mar 20	*	77*
Smiley Mountain	9540	35.8	18.1₍₁₉₎	20.2₍₁₉₎	Apr 25₍₁₉₎	198	177
Swede Peak	7640	24.7	10.4	13.8	Apr 09	238	179
Basin Index (%)		224
BIG LOST BASIN
Bear Canyon	7920	24.8	12.8	14.2	Apr 18	194	175
Hilts Creek	8080	16.7	10.7	12.9	Apr 12	156	129
Lost-Wood Divide	7870	36.5	14.3	19.0	Apr 12	255	192
Smiley Mountain	9540	35.8	18.1₍₁₉₎	20.2₍₁₉₎	Apr 25₍₁₉₎	198	177
Stickney Mill	7440	5.5	1.0	8.4	Mar 31	550	65
Basin Index (%)		210
LITTLE LOST
Hilts Creek	8080	16.7	10.7	12.9	Apr 12	156	129
Meadow Lake	9190	24.7	15.7	17.2	Apr 27	157	144
Moonshine	7490	11.3	5.2	10.0	Mar 30	217	113
Basin Index (%)		167
BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS
Beagle Springs	8880	13.7	9.8	11.2	Apr 24	140	122
Crab Creek	6870	13.5	9.5	13.5	Apr 07	142	100
Lakeview Ridge	7340	2.7	7.8	10.0	Apr 09	35	27
Meadow Lake	9190	24.7	15.7	17.2	Apr 27	157	144
Basin Index (%)		128
HENRYS FORK, TETON BASINS
Black Bear	8160	51.0	40.0	41.4	Apr 29	128	123
Grand Targhee	9260	54.8	47.4₍₁₄₎	48.8₍₁₄₎	May 01₍₁₄₎	116	112
Grassy Lake	7330	37.6	31.0	34.2	Apr 15	121	110
Island Park	6300	5.1	8.2	14.8	Mar 27	62	34
Lewis Lake Divide	7880	47.1	31.3	33.4	Apr 20	150	141
Phillips Bench	8160	40.2	27.3	28.5	Apr 21	147	141
Pine Creek Pass	6710	6.8	9.1	16.1	Apr 01	75	42
White Elephant	7670	31.4	26.3	28.6	Apr 19	119	110
Basin Index (%)		124
SNAKE BASIN ABOVE PALISADES
Base Camp	7040	20.6	12.2	17.8	Apr 02	169	116
Blind Bull Sum	8890	45.8	25.0	26.1	May 03	183	175
Cottonwood Creek	7710	28.2	19.2	22.6	Apr 10	147	125
East Rim Divide	8010	10.6	8.6	11.1	Apr 11	123	95
Granite Creek	6770	21.8	11.4	16.4	Apr 03	191	133
Grassy Lake	7330	37.6	31.0	34.2	Apr 15	121	110
Gros Ventre Summit	8760	20.9	12.9	13.6	Apr 23	162	154
Gunsight Pass	9830	24.9	13.4₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	186	180
Lewis Lake Divide	7880	47.1	31.3	33.4	Apr 20	150	141
Loomis Park	8240	24.0	12.0	16.2	Apr 09	200	148
Phillips Bench	8160	40.2	27.3	28.5	Apr 21	147	141
Salt River Summit	7630	17.2	10.2	13.6	Apr 07	169	126
Snake River Station	6900	13.6	13.2	18.0	Apr 03	103	76
Somsen Ranch	6830	6.6	4.7	12.8	Mar 28	140	52
Spring Creek Divide	9020	43.0	25.4	26.0	Apr 27	169	165
Thumb Divide	7970	19.5	16.0	17.7	Apr 13	122	110
Togwotee Pass	9590	35.5	25.1	26.6	May 03	141	133
Triple Peak	8520	35.5	19.9	24.4	Apr 15	178	145
Two Ocean Plateau	9240	53.3	32.6	34.9	May 03	163	153
Willow Creek	8060	44.3	28.1	31.4	Apr 14	158	141
Younts Peak	8340	24.2	15.0₍₂₈₎	15.6₍₂₈₎	Apr 25₍₂₈₎	161	155
Basin Index (%)		156
WILLOW, BLACKFOOT, PORTNEUF BASINS
Oxford Spring	6800	0.0	0.0₍₂₉₎	10.2₍₂₉₎	Mar 10₍₂₉₎	*	0*
Pebble Creek	6520	-M	N/A	N/A	N/A	*	*
Sedgwick Peak	7780	27.5	16.5	20.2	Apr 09	167	136
Sheep Mtn.	6630	7.3	3.5	13.8	Mar 25	209	53
Slug Creek Divide	7240	12.5	9.1	15.2	Apr 02	137	82
Somsen Ranch	6830	6.6	4.7	12.8	Mar 28	140	52
Wildhorse Divide	6480	11.6	11.4	15.8	Apr 02	102	73
Basin Index (%)		145
SNAKE BASIN ABOVE AMERICAN FALLS
Base Camp	7040	20.6	12.2	17.8	Apr 02	169	116
Black Bear	8160	51.0	40.0	41.4	Apr 29	128	123
Blind Bull Sum	8890	45.8	25.0	26.1	May 03	183	175
Cottonwood Creek	7710	28.2	19.2	22.6	Apr 10	147	125
East Rim Divide	8010	10.6	8.6	11.1	Apr 11	123	95
Grand Targhee	9260	54.8	47.4₍₁₄₎	48.8₍₁₄₎	May 01₍₁₄₎	116	112
Granite Creek	6770	21.8	11.4	16.4	Apr 03	191	133
Grassy Lake	7330	37.6	31.0	34.2	Apr 15	121	110
Gros Ventre Summit	8760	20.9	12.9	13.6	Apr 23	162	154
Gunsight Pass	9830	24.9	13.4₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	186	180
Island Park	6300	5.1	8.2	14.8	Mar 27	62	34
Lewis Lake Divide	7880	47.1	31.3	33.4	Apr 20	150	141
Loomis Park	8240	24.0	12.0	16.2	Apr 09	200	148
Oxford Spring	6800	0.0	0.0₍₂₉₎	10.2₍₂₉₎	Mar 10₍₂₉₎	*	0*
Phillips Bench	8160	40.2	27.3	28.5	Apr 21	147	141
Pine Creek Pass	6710	6.8	9.1	16.1	Apr 01	75	42
Salt River Summit	7630	17.2	10.2	13.6	Apr 07	169	126
Sedgwick Peak	7780	27.5	16.5	20.2	Apr 09	167	136
Sheep Mtn.	6630	7.3	3.5	13.8	Mar 25	209	53
Slug Creek Divide	7240	12.5	9.1	15.2	Apr 02	137	82
Snake River Station	6900	13.6	13.2	18.0	Apr 03	103	76
Somsen Ranch	6830	6.6	4.7	12.8	Mar 28	140	52
Spring Creek Divide	9020	43.0	25.4	26.0	Apr 27	169	165
Thumb Divide	7970	19.5	16.0	17.7	Apr 13	122	110
Togwotee Pass	9590	35.5	25.1	26.6	May 03	141	133
Two Ocean Plateau	9240	53.3	32.6	34.9	May 03	163	153
White Elephant	7670	31.4	26.3	28.6	Apr 19	119	110
Wildhorse Divide	6480	11.6	11.4	15.8	Apr 02	102	73
Willow Creek	8060	44.3	28.1	31.4	Apr 14	158	141
Basin Index (%)		144
RAFT BASIN
George Creek	8960	32.9	21.8₍₁₀₎	23.2₍₁₀₎	Apr 23₍₁₀₎	151	142
Howell Canyon	8010	38.4	24.6	27.2	Apr 15	156	141
Basin Index (%)		154
GOOSE CREEK BASIN
Bostetter R.S.	7530	15.6	11.6	17.3	Apr 01	134	90
Magic Mountain	6940	18.4	14.0	19.3	Mar 31	131	95
Basin Index (%)		133
SALMON FALLS BASIN
Bostetter R.S.	7530	15.6	11.6	17.3	Apr 01	134	90
Jakes Creek	7380	-M	N/A	N/A	N/A	*	*
Magic Mountain	6940	18.4	14.0	19.3	Mar 31	131	95
ONeil Creek	6500	-M	N/A	N/A	N/A	*	*
Pole Creek R.S.	8360	24.1	20.6	21.4	Apr 25	117	113
Wilson Creek	7110	6.8	6.8	13.8	Mar 26	100	49
Basin Index (%)		122
BRUNEAU BASIN
Bear Creek	8090	24.3	18.0	20.4	Apr 15	135	119
Big Bend	6890	2.1	0.0	10.0	Mar 18	*	21*
Merritt Mountain	6920	-M	N/A	N/A	N/A	*	*
ONeil Creek	6500	-M	N/A	N/A	N/A	*	*
Pole Creek R.S.	8360	24.1	20.6	21.4	Apr 25	117	113
Seventysix Creek	7360	8.0	1.2	11.0	Mar 22	667	73
Stag Mountain	7640	-M	N/A	N/A	N/A	*	*
Wilson Creek	7110	6.8	6.8	13.8	Mar 26	100	49
Basin Index (%)		140
OWYHEE BASIN
Big Bend	6890	2.1	0.0	10.0	Mar 18	*	21*
Columbia Basin	6480	-M	N/A	N/A	N/A	*	*
Fawn Creek	7040	16.4	10.9	17.8	Apr 07	150	92
Fry Canyon	6790	0.0	N/A	N/A	N/A	*	*
Jack Creek Upper	7380	15.9	15.0	18.2	Apr 12	106	87
Jacks Peak	8440	-M	N/A	N/A	N/A	*	*
Laurel Draw	6680	0.0	0.0	11.3	Mar 15	*	0*
Merritt Mountain	6920	-M	N/A	N/A	N/A	*	*
Mud Flat	5750	0.0	0.0	7.0	Mar 09	*	0*
South Mtn.	6650	5.0	4.8	15.6	Mar 22	104	32
Taylor Canyon	6320	0.0	0.0	6.0	Mar 08	*	0*
Toe Jam	7700	30.9	4.4₍₁₁₎	15.4₍₁₁₎	Apr 06₍₁₁₎	702	201
Basin Index (%)		200
BEAR RIVER BASIN
Bear River RS	8510	1.5	0.9₍₁₀₎	10.0₍₁₀₎	Apr 01₍₁₀₎	167*	15*
Bug Lake	7980	31.9	16.0	19.0	Apr 14	199	168
Burts Miller Ranch	7900	0.0	0.0₍₁₁₎	6.4₍₁₁₎	Mar 29₍₁₁₎	*	0*
Chalk Creek #1	9160	33.0	21.9	24.6	Apr 17	151	134
Emigrant Summit	7390	25.7	19.7	22.6	Apr 09	130	114
Franklin Basin	8140	41.9	25.0	28.2	Apr 17	168	149
Garden City Summit	7680	24.0	13.9₍₁₁₎	19.3₍₁₁₎	Apr 08₍₁₁₎	173	124
Giveout	6940	1.0	0.2	8.8	Mar 20	500*	11*
Hayden Fork	9160	14.5	10.2	15.9	Apr 06	142	91
Kelley R.S.	8240	23.7	13.0	15.2	Apr 09	182	156
Klondike Narrows	7280	16.8	8.1₍₁₁₎	20.3₍₁₁₎	Mar 31₍₁₁₎	207	83
Lily Lake	9130	12.0	10.2	13.6	Apr 15	118	88
Monte Cristo	8930	37.2	26.0	29.6	Apr 17	143	126
Oxford Spring	6800	0.0	0.0₍₂₉₎	10.2₍₂₉₎	Mar 10₍₂₉₎	*	0*
Salt River Summit	7630	17.2	10.2	13.6	Apr 07	169	126
Sedgwick Peak	7780	27.5	16.5	20.2	Apr 09	167	136
Slug Creek Divide	7240	12.5	9.1	15.2	Apr 02	137	82
Spring Creek Divide	9020	43.0	25.4	26.0	Apr 27	169	165
Tony Grove Lake	8450	52.0	30.8	36.2	Apr 15	169	144
Trial Lake	9970	43.8	22.7	24.2	Apr 25	193	181
Usu Doc Daniel	8610	51.1	29.0₍₁₃₎	30.1₍₁₃₎	Apr 25₍₁₃₎	176	170
Basin Index (%)		165

-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.

The snow water equivalent percent of median (or average) represents the current snow water
equivalent found at selected SNOTEL sites in or near the basin compared to the median (or average) value
for those sites on this day.

The snow water equivalent percent of median (or average) peak represents the current
snow water equivalent at selected SNOTEL sites in or near the basin compared to the median (or average)
of the maximum seasonal values observed each water year for those sites.

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.