Wyoming SNOTEL Snow/Precipitation Update Report

Wyoming 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, December 17, 2024

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
SNAKE RIVER
Base Camp	7060	3.6	5.5	65	4.4	8.5	52
Blind Bull Sum	8650	4.8	7.7	62	4.4	6.9	64
Cottonwood Creek	7670	5.1	6.6	77	6.1	8.8	69
East Rim Divide	7930	2.3	3.2	72	2.6	4.3	60
Grand Targhee	9260	-M	16.2₍₁₄₎	*	-M	13.2₍₁₄₎	*
Granite Creek	6770	4.2	4.6	91	4.5	7.0	64
Grassy Lake	7265	6.3	9.3	68	8.4	11.9	71
Gros Ventre Summit	8750	3.0	4.8	62	3.2	5.2	62
Gunsight Pass	9820	4.0	4.6₍₂₂₎	87	3.9	5.8₍₂₂₎	67
Lewis Lake Divide	7850	6.6	9.4	70	8.2	12.0	68
Loomis Park	8240	3.8	4.8	79	4.0	6.1	66
Phillips Bench	8200	5.7	8.2	70	5.8	9.4	62
Salt River Summit	7640	2.6	3.6	72	2.4	5.5	44
Snake River Station	6920	3.8	5.0	76	4.5	8.9	51
Somsen Ranch	6800	2.9	3.4	85	4.1	6.2	66
Spring Creek Divide	9000	4.3	7.6	57	5.6	8.2	68
Thumb Divide	7980	3.4	4.7	72	3.6	7.0	51
Togwotee Pass	9580	5.6	9.0	62	6.3	9.4	67
Triple Peak	8500	5.9	7.0	84	6.3	8.4	75
Two Ocean Plateau	9240	6.7	11.0	61	5.8	10.3	56
Willow Creek	8080	6.2	8.6	72	8.6	12.2	70
Younts Peak	8350	1.8	5.2₍₂₈₎	35	3.0	5.8₍₂₈₎	52
Basin Index (%)		69			63
MADISON HEADWATERS IN WYOMING
Black Bear	8170	9.2	12.8	72	9.9	13.8	72
Canyon	7870	3.0	N/A	*	3.4	N/A	*
Madison Plateau	7750	5.6	7.3	77	7.8	9.6	81
West Yellowstone	6700	3.1	3.4	91	4.3	5.8₍₂₂₎	74
Whiskey Creek	6800	4.1	4.4	93	6.9	7.5	92
Basin Index (%)		79			79
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake	9360	4.7	8.0	59	4.1	7.7	53
Canyon	7870	3.0	N/A	*	3.4	N/A	*
Evening Star	9200	4.5	9.4	48	6.0	11.8	51
Fisher Creek	9100	6.7	11.8	57	8.0	12.0	67
Monument Peak	8850	4.4	7.2	61	5.9	8.6	69
Northeast Entrance	7350	2.4	2.8	86	3.2	5.4	59
Parker Peak	9400	5.5	8.2	67	5.8	8.2	71
Sylvan Lake	8420	3.8	7.0	54	5.5	9.6	57
Thumb Divide	7980	3.4	4.7	72	3.6	7.0	51
Two Ocean Plateau	9240	6.7	11.0	61	5.8	10.3	56
White Mill	8700	5.2	8.4	62	5.3	8.8	60
Wolverine	7650	2.5	4.0	62	3.5	5.2	67
Basin Index (%)		60			60
WIND RIVER
Burroughs Creek	8750	2.2	N/A	*	3.4	N/A	*
Castle Creek	8400	1.1	2.6₍₁₀₎	42	1.7	4.0₍₁₀₎	42
Cold Springs	9630	2.6	3.1	84	2.6	4.0	65
Deer Park	9700	4.6	5.1₍₂₂₎	90	5.8	6.6₍₂₃₎	88
Hobbs Park	10100	3.7	5.2	71	4.2	5.0	84
Kirwin	9550	2.1	4.5	47	2.7	5.1	53
Little Warm	9370	2.8	3.6	78	3.6	5.2	69
South Pass	9040	3.6	5.0	72	4.9	6.3	78
St. Lawrence Alt	8620	1.4	N/A	*	2.9	N/A	*
Togwotee Pass	9580	5.6	9.0	62	6.3	9.4	67
Townsend Creek	8700	2.5	3.2	78	4.1	4.9	84
Basin Index (%)		69			71
BIGHORN BASIN
Bald Mtn.	9380	6.6	7.0	94	6.1	6.4	95
Bear Trap Meadow	8200	2.1	2.3	91	2.7	3.8	71
Bone Springs Div	9350	3.7	6.2	60	3.9	6.0	65
Grave Springs	8550	2.2	2.5₍₂₈₎	88	3.4	3.8₍₂₈₎	89
Kirwin	9550	2.1	4.5	47	2.7	5.1	53
Marquette	8760	2.4	3.2	75	3.3	4.2	79
Middle Powder	7760	2.7	3.3	82	3.0	4.4	68
Owl Creek	8975	1.2	2.2	55	1.8	2.9	62
Powder River Pass	9480	2.0	4.2	48	3.4	5.3	64
Shell Creek	9580	4.1	6.2	66	3.9	5.6	70
Timber Creek	7950	1.8	1.9	95	1.9	3.8	50
Basin Index (%)		71			70
SHOSHONE RIVER
Blackwater	9780	6.0	9.2	65	5.4	8.8	61
Evening Star	9200	4.5	9.4	48	6.0	11.8	51
Marquette	8760	2.4	3.2	75	3.3	4.2	79
Sylvan Lake	8420	3.8	7.0	54	5.5	9.6	57
Sylvan Road	7120	1.9	4.4	43	3.2	7.4	43
Younts Peak	8350	1.8	5.2₍₂₈₎	35	3.0	5.8₍₂₈₎	52
Basin Index (%)		53			55
POWDER RIVER
Bear Trap Meadow	8200	2.1	2.3	91	2.7	3.8	71
Cloud Peak Reservoir	9860	3.0	5.2	58	3.5	5.6	62
Grave Springs	8550	2.2	2.5₍₂₈₎	88	3.4	3.8₍₂₈₎	89
Hansen Sawmill	8360	1.5	2.4	62	2.5	3.7	68
Middle Powder	7760	2.7	3.3	82	3.0	4.4	68
Powder River Pass	9480	2.0	4.2	48	3.4	5.3	64
Soldier Park	8720	0.6	2.0₍₁₀₎	30	2.2	3.8₍₁₀₎	58
Basin Index (%)		64			68
TONGUE RIVER
Big Goose	7990	2.0	2.8₍₂₂₎	71	3.6	4.3₍₂₂₎	84
Bone Springs Div	9350	3.7	6.2	60	3.9	6.0	65
Burgess Junction	7880	2.8	3.5	80	3.9	4.8	81
Dome Lake	8880	2.9	3.8	76	2.2	5.1	43
Little Goose	8870	2.7	3.2₍₁₀₎	84	3.8	5.1₍₁₀₎	75
Sucker Creek	8880	3.0	4.4	68	4.4	5.4	81
Tie Creek	6870	2.1	1.4₍₂₆₎	150	4.0	4.6₍₂₆₎	87
Basin Index (%)		76			73
BELLE FOURCHE
Blind Park	6890	1.6	2.4	67	3.4	4.4	77
Cole Canyon	5910	1.3	1.6₍₂₀₎	81	3.1	3.4₍₂₀₎	91
North Rapid Creek	6130	2.3	2.4₍₂₄₎	96	2.6	3.3₍₂₄₎	79
Basin Index (%)		81			82
CHEYENNE RIVER BASIN
Blind Park	6890	1.6	2.4	67	3.4	4.4	77
North Rapid Creek	6130	2.3	2.4₍₂₄₎	96	2.6	3.3₍₂₄₎	79
Basin Index (%)		81			78
UPPER N. PLATTE
Arapaho Ridge	10976	7.0	7.9₍₁₈₎	89	7.6	8.6₍₁₈₎	88
Blackhall Mtn	9839	6.5	9.8₍₁₁₎	66	7.9	11.6₍₁₁₎	68
Cinnabar Park	9707	3.5	6.9₍₁₇₎	51	4.4	8.7₍₁₇₎	51
Columbine	9167	5.5	6.0	92	8.1	8.6	94
Divide Peak	8730	3.5	5.8	60	5.5	8.0	69
Joe Wright	10158	5.8	7.0	83	8.8	9.7	91
Laprele Creek	8390	2.0	2.7	74	2.4	4.6	52
Med Bow	10512	6.5	N/A	*	7.1	N/A	*
Never Summer	10323	5.1	6.8₍₁₈₎	75	4.8	6.8₍₁₈₎	71
North French Creek	10153	5.6	9.1	62	5.9	9.4	63
Old Battle	9860	6.2	9.8	63	7.5	12.2	61
Rawah	9069	3.8	3.7₍₁₈₎	103	5.8	6.6₍₁₈₎	88
Sage Creek Basin	7850	2.6	4.0₍₁₉₎	65	3.9	5.4₍₁₉₎	72
Sand Lake	10098	5.4	9.2	59	5.9	9.2	64
South Brush Creek	8495	2.4	3.6	67	3.5	5.4	65
Tower	10620	9.9	13.5	73	11.6	14.2	82
Webber Springs	9260	4.2	7.4	57	5.4	9.7	56
Whiskey Park	9020	5.8	7.6	76	7.8	10.0	78
Willow Creek Pass	9523	4.3	4.8	90	4.6	5.4	85
Zirkel	9338	4.4	7.6₍₁₈₎	58	6.9	11.0₍₁₈₎	63
Basin Index (%)		70			72
SWEETWATER
Deer Park	9700	4.6	5.1₍₂₂₎	90	5.8	6.6₍₂₃₎	88
Larsen Creek	9000	1.6	2.6₍₁₀₎	62	3.9	4.6₍₁₀₎	85
South Pass	9040	3.6	5.0	72	4.9	6.3	78
Basin Index (%)		77			83
LOWER N. PLATTE
Casper Mtn.	7920	2.8	4.3	65	4.1	5.8	71
Laprele Creek	8390	2.0	2.7	74	2.4	4.6	52
Reno Hill	8430	3.4	4.8	71	5.0	5.4	93
Windy Peak	7915	1.5	2.4	62	1.7	4.1	41
Basin Index (%)		68			66
LARAMIE RIVER
Brooklyn Lake	10250	3.8	6.7	57	4.4	7.0	63
Cinnabar Park	9707	3.5	6.9₍₁₇₎	51	4.4	8.7₍₁₇₎	51
Crow Creek	8335	0.5	3.2₍₁₇₎	16	2.0	4.3₍₁₇₎	47
Deadman Hill	10239	5.0	6.2	81	5.7	6.6	86
Rawah	9069	3.8	3.7₍₁₈₎	103	5.8	6.6₍₁₈₎	88
Roach	9740	3.9	5.3	74	5.3	7.1	75
Windy Peak	7915	1.5	2.4	62	1.7	4.1	41
Basin Index (%)		64			66
S. PLATTE
Crow Creek	8335	0.5	3.2₍₁₇₎	16	2.0	4.3₍₁₇₎	47
Basin Index (%)		16			47
LITTLE SNAKE RIVER
Battle Mountain	7498	2.7	3.2	84	5.5	5.6	98
Divide Peak	8730	3.5	5.8	60	5.5	8.0	69
Elk River	8739	3.9	4.8	81	6.4	6.6	97
Elkhead Divide	8800	3.9	N/A	*	5.9	N/A	*
Little Snake River	8928	4.8	7.2₍₁₆₎	67	8.9	12.0₍₁₆₎	74
Old Battle	9860	6.2	9.8	63	7.5	12.2	61
Sage Creek Basin	7850	2.6	4.0₍₁₉₎	65	3.9	5.4₍₁₉₎	72
Sandstone RS	8152	3.3	3.6	92	4.3	6.6	65
Whiskey Park	9020	5.8	7.6	76	7.8	10.0	78
Basin Index (%)		71			75
UPPER GREEN RIVER
Big Sandy Opening	9080	2.6	4.5	58	3.2	4.6	70
Blind Bull Sum	8650	4.8	7.7	62	4.4	6.9	64
East Rim Divide	7930	2.3	3.2	72	2.6	4.3	60
Elkhart Park G.S.	9400	3.4	4.2	81	3.9	5.2	75
Gros Ventre Summit	8750	3.0	4.8	62	3.2	5.2	62
Gunsight Pass	9820	4.0	4.6₍₂₂₎	87	3.9	5.8₍₂₂₎	67
Indian Creek	9425	4.9	7.4	66	5.1	7.2	71
Kendall R.S.	7740	3.0	3.8	79	3.1	5.2	60
Larsen Creek	9000	1.6	2.6₍₁₀₎	62	3.9	4.6₍₁₀₎	85
Loomis Park	8240	3.8	4.8	79	4.0	6.1	66
New Fork Lake	8340	3.1	3.7	84	-M	4.2	*
Pocket Creek	9360	-M	N/A	*	-M	N/A	*
Snider Basin	8060	2.4	3.6	67	3.5	4.9	71
Spring Creek Divide	9000	4.3	7.6	57	5.6	8.2	68
Triple Peak	8500	5.9	7.0	84	6.3	8.4	75
Basin Index (%)		71			69
LOWER GREEN RIVER
Blacks Fork Jct	8869	3.3	2.4₍₁₀₎	138	4.5	4.8₍₁₀₎	94
Buck Pasture	9632	3.3	N/A	*	6.3	N/A	*
EF Blacks Fork GS	9360	2.4	3.1₍₁₀₎	77	5.0	4.6₍₁₀₎	109
Hams Fork	7840	2.2	3.4	65	2.9	4.4	66
Henrys Fork	10182	-M	N/A	*	4.8	N/A	*
Hewinta	9500	2.1	2.8	75	5.3	5.5	96
Hickerson Park	9122	2.5	2.0	125	4.8	4.5	107
Hole-in-Rock	9168	1.7	2.2	77	4.6	4.2	110
Indian Creek	9425	4.9	7.4	66	5.1	7.2	71
Kelley R.S.	8180	3.5	4.5	78	4.3	6.0	72
Spirit Lk	10235	3.8	4.2₍₁₁₎	90	5.5	6.8₍₁₁₎	81
Steel Creek Park	10158	5.2	5.0	104	6.5	6.4	102
Basin Index (%)		85			89
UPPER BEAR RIVER
Bear River RS	8777	2.7	2.6₍₁₀₎	104	5.0	4.8₍₁₀₎	104
Bug Lake	7987	3.8	5.0	76	4.6	6.6	70
Burts Miller Ranch	8000	2.4	2.1₍₁₁₎	114	5.1	3.3₍₁₁₎	155
Chalk Creek #1	9171	4.2	7.1	59	7.5	8.5	88
Giveout	6930	1.3	2.6	50	2.6	4.7	55
Hayden Fork	9130	2.7	4.0	68	6.8	7.4	92
Kelley R.S.	8180	3.5	4.5	78	4.3	6.0	72
Lily Lake	9133	3.0	4.3	70	5.6	6.4	88
Monte Cristo	8932	5.1	7.2	71	5.8	8.7	67
Salt River Summit	7640	2.6	3.6	72	2.4	5.5	44
Spring Creek Divide	9000	4.3	7.6	57	5.6	8.2	68
Trial Lake	9992	4.4	6.0	73	5.9	7.3	81
Basin Index (%)		71			79

-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.