Idaho Northern SNOTEL Snow/Precipitation Update Report

Idaho Northern 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 Thursday, June 08, 2023

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
IDAHO KOOTENAI RIVER REGION
Bear Mountain	5400	-M	20.0	*	56.6	81.3	70
Garver Creek	4250	0.0	0.0	*	17.5	22.5₍₂₄₎	78
Hawkins Lake	6450	0.0	0.2	0*	33.3	38.4	87
Hidden Lake	5040	-M	0.0₍₂₀₎	*	46.7	65.3₍₂₀₎	72
Myrtle Creek	3520	-M	0.0₍₁₇₎	*	20.4	25.1₍₁₇₎	81
Basin Index (%)		0*			75
IDAHO PEND OREILLE RIVER REGION
Bear Mountain	5400	-M	20.0	*	56.6	81.3	70
Bunchgrass Mdw	5000	0.0	1.4	0*	38.2	45.6	84
Mosquito Ridge	5260	0.1	0.8	12*	39.4	51.4	77
Quartz Peak	4700	0.0	0.0	*	37.6	41.4	91
Ragged Mountain	4210	0.1	0.0₍₁₄₎	*	35.7	40.5₍₁₄₎	88
Schweitzer Basin	6090	-M	19.4	*	40.9	47.5	86
Basin Index (%)		9*			81
COEUR d'ALENE BASIN
Humboldt Gulch	4250	0.2	0.0	*	34.2	45.8	75
Lookout	5190	0.0	0.0	*	32.4	44.5	73
Mosquito Ridge	5260	0.1	0.8	12*	39.4	51.4	77
Sunset	5540	0.2	0.0	*	27.0	43.3	62
Basin Index (%)		62*			72
ST. JOE BASIN
Hoodoo Basin	6050	8.9	20.6	43	43.9	53.4	82
Lost Lake	6110	6.3	24.0	26	60.5	69.0	88
Mica Creek	4510	0.0	0.0	*	40.8	46.2	88
Sherwin	3200	0.0	0.0	*	27.9	34.8₍₂₉₎	80
Basin Index (%)		34			85
SPOKANE BASIN
Hoodoo Basin	6050	8.9	20.6	43	43.9	53.4	82
Humboldt Gulch	4250	0.2	0.0	*	34.2	45.8	75
Lookout	5190	0.0	0.0	*	32.4	44.5	73
Lost Lake	6110	6.3	24.0	26	60.5	69.0	88
Mica Creek	4510	0.0	0.0	*	40.8	46.2	88
Mosquito Ridge	5260	0.1	0.8	12*	39.4	51.4	77
Quartz Peak	4700	0.0	0.0	*	37.6	41.4	91
Ragged Mountain	4210	0.1	0.0₍₁₄₎	*	35.7	40.5₍₁₄₎	88
Sherwin	3200	0.0	0.0	*	27.9	34.8₍₂₉₎	80
Sunset	5540	0.2	0.0	*	27.0	43.3	62
Basin Index (%)		35*			81
SELWAY BASIN
Mountain Meadows	6320	-M	0.0	*	37.2	37.8	98
Nez Perce Camp	5650	0.0	0.0	*	20.5	26.8	76
Twelvemile Creek	5600	-M	0.0	*	32.0	41.0	78
Twin Lakes	6400	0.0	3.7	0*	44.7	56.2	80
Basin Index (%)		0*			83
LOCHSA BASIN
Lolo Pass	5240	0.0	0.0	*	31.4	40.4	78
Savage Pass	6190	-M	0.0	*	32.5	39.5	82
Basin Index (%)		*			80
NF CLEARWATER BASIN
Cool Creek	6280	0.9	24.4	4	49.0	63.0	78
Crater Meadows	5960	4.0	9.4	43	54.2	62.9	86
Elk Butte	5690	-M	0.0	*	37.6	51.5	73
Hemlock Butte	5810	0.1	4.4	2*	36.4	59.2	61
Hoodoo Basin	6050	8.9	20.6	43	43.9	53.4	82
Lolo Pass	5240	0.0	0.0	*	31.4	40.4	78
Lost Lake	6110	6.3	24.0	26	60.5	69.0	88
Pierce R.S.	3080	-M	0.0₍₁₁₎	*	32.7	37.7₍₁₁₎	87
Shanghi Summit	4600	0.0	0.0	*	41.7	50.4	83
Basin Index (%)		24*			79
CLEARWATER BASIN
Cool Creek	6280	0.9	24.4	4	49.0	63.0	78
Crater Meadows	5960	4.0	9.4	43	54.2	62.9	86
Elk Butte	5690	-M	0.0	*	37.6	51.5	73
Hemlock Butte	5810	0.1	4.4	2*	36.4	59.2	61
Hoodoo Basin	6050	8.9	20.6	43	43.9	53.4	82
Lolo Pass	5240	0.0	0.0	*	31.4	40.4	78
Lost Lake	6110	6.3	24.0	26	60.5	69.0	88
Moscow Mountain	4700	0.1	0.0₍₂₀₎	*	34.8	39.0₍₂₀₎	89
Mountain Meadows	6320	-M	0.0	*	37.2	37.8	98
Nez Perce Camp	5650	0.0	0.0	*	20.5	26.8	76
Pierce R.S.	3080	-M	0.0₍₁₁₎	*	32.7	37.7₍₁₁₎	87
Savage Pass	6190	-M	0.0	*	32.5	39.5	82
Shanghi Summit	4600	0.0	0.0	*	41.7	50.4	83
Sherwin	3200	0.0	0.0	*	27.9	34.8₍₂₉₎	80
Twelvemile Creek	5600	-M	0.0	*	32.0	41.0	78
Twin Lakes	6400	0.0	3.7	0*	44.7	56.2	80
Basin Index (%)		23*			81
SALMON RIVER ABOVE SALMON BASIN
Banner Summit	7040	0.0	0.0	*	36.3	35.4	103
Galena	7470	0.1	0.0	*	25.0	21.5	116
Galena Summit	8780	0.1	0.0	*	30.0	25.5	118
Mill Creek Summit	8800	0.7	0.4₍₂₉₎	175*	25.2	23.9	105
Moonshine	7440	0.0	0.0	*	20.6	16.5	125
Morgan Creek	7600	0.1	0.0	*	21.3	19.6	109
Vienna Mine	8960	12.5	15.7	80	43.2	38.6	112
Basin Index (%)		84*			111
LEMHI BASIN
Beagle Springs	8850	0.0	0.0	*	-M	16.8	*
Darkhorse Lake	8945	7.7	19.0	41	34.3	36.9	93
Lemhi Ridge	8100	-M	0.0	*	21.1	19.2	110
Meadow Lake	9150	0.3	0.4	75*	27.0	25.0	108
Moonshine	7440	0.0	0.0	*	20.6	16.5	125
Schwartz Lake	8630	-M	0.0₍₂₅₎	*	21.0	20.1₍₂₅₎	104
Basin Index (%)		41*			105
MF SALMON BASIN
Banner Summit	7040	0.0	0.0	*	36.3	35.4	103
Deadwood Summit	6860	10.5	10.9	96	45.6	49.7	92
Morgan Creek	7600	0.1	0.0	*	21.3	19.6	109
Basin Index (%)		97*			99
SF SALMON BASIN
Big Creek Summit	6560	-M	1.4	*	31.9	41.3	77
Deadwood Summit	6860	10.5	10.9	96	45.6	49.7	92
Secesh Summit	6540	-M	0.0	*	36.0	35.9	100
Basin Index (%)		96*			89
LITTLE SALMON BASIN
Bear Basin	5350	-M	0.0	*	26.8	31.2	86
Brundage Reservoir	6250	0.2	0.0	*	36.9	45.7	81
Puhi Flat	6240	0.0	0.0	*	37.3	40.4	92
West Branch	5560	-M	0.0	*	33.2	36.7	90
Basin Index (%)		*			87
SALMON BASIN
Banner Summit	7040	0.0	0.0	*	36.3	35.4	103
Beagle Springs	8850	0.0	0.0	*	-M	16.8	*
Bear Basin	5350	-M	0.0	*	26.8	31.2	86
Big Creek Summit	6560	-M	1.4	*	31.9	41.3	77
Brundage Reservoir	6250	0.2	0.0	*	36.9	45.7	81
Darkhorse Lake	8945	7.7	19.0	41	34.3	36.9	93
Deadwood Summit	6860	10.5	10.9	96	45.6	49.7	92
Galena	7470	0.1	0.0	*	25.0	21.5	116
Galena Summit	8780	0.1	0.0	*	30.0	25.5	118
Lemhi Ridge	8100	-M	0.0	*	21.1	19.2	110
Meadow Lake	9150	0.3	0.4	75*	27.0	25.0	108
Mill Creek Summit	8800	0.7	0.4₍₂₉₎	175*	25.2	23.9	105
Moonshine	7440	0.0	0.0	*	20.6	16.5	125
Moose Creek	6200	0.3	0.0	*	23.7	25.2	94
Morgan Creek	7600	0.1	0.0	*	21.3	19.6	109
Mountain Meadows	6320	-M	0.0	*	37.2	37.8	98
Saddle Mtn.	7940	0.1	5.3	2	25.2	29.1	87
Schwartz Lake	8630	-M	0.0₍₂₅₎	*	21.0	20.1₍₂₅₎	104
Secesh Summit	6540	-M	0.0	*	36.0	35.9	100
Puhi Flat	6240	0.0	0.0	*	37.3	40.4	92
Vienna Mine	8960	12.5	15.7	80	43.2	38.6	112
West Branch	5560	-M	0.0	*	33.2	36.7	90
Basin Index (%)		63*			97

-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.

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