Wyoming SNOTEL Snowpack Update Report

Wyoming 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 Friday, April 04, 2025

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
SNAKE RIVER
Base Camp	7040	18.3	16.6	17.8	Apr 02	110	103
Blind Bull Sum	8880	25.9	23.6	26.1	May 03	110	99
Cottonwood Creek	7710	25.3	21.4	22.6	Apr 10	118	112
East Rim Divide	8010	11.1	10.4	11.1	Apr 11	107	100
Grand Targhee	9260	39.7	42.0₍₁₄₎	48.8₍₁₄₎	May 01₍₁₄₎	95	81
Granite Creek	6770	18.3	15.3	16.4	Apr 03	120	112
Grassy Lake	7330	31.9	32.2	34.2	Apr 15	99	93
Gros Ventre Summit	8760	12.8	12.8	13.6	Apr 23	100	94
Gunsight Pass	9830	13.9	12.8₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	109	101
Lewis Lake Divide	7880	32.5	30.2	33.4	Apr 20	108	97
Loomis Park	8240	15.3	15.4	16.2	Apr 09	99	94
Phillips Bench	8160	26.4	26.0	28.5	Apr 21	102	93
Salt River Summit	7630	15.5	13.4	13.6	Apr 07	116	114
Snake River Station	6900	19.6	16.7	18.0	Apr 03	117	109
Somsen Ranch	6830	14.0	10.8	12.8	Mar 28	130	109
Spring Creek Divide	9020	26.6	24.6	26.0	Apr 27	108	102
Thumb Divide	7970	15.0	16.2	17.7	Apr 13	93	85
Togwotee Pass	9590	24.4	23.2	26.6	May 03	105	92
Triple Peak	8520	28.7	22.8	24.4	Apr 15	126	118
Two Ocean Plateau	9240	28.8	28.4	34.9	May 03	101	83
Willow Creek	8060	35.2	29.6	31.4	Apr 14	119	112
Younts Peak	8340	15.3	14.2₍₂₈₎	15.6₍₂₈₎	Apr 25₍₂₈₎	108	98
Basin Index (%)		108
MADISON HEADWATERS IN WYOMING
Black Bear	8160	34.2	37.8	41.4	Apr 29	90	83
Canyon	7870	12.4	N/A	N/A	N/A	*	*
Madison Plateau	7710	22.3	22.4	24.7	Apr 24	100	90
West Yellowstone	6680	10.8	10.0	11.6	Apr 03	108	93
Whiskey Creek	6790	15.7	15.4	16.5	Apr 17	102	95
Basin Index (%)		97
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake	9360	21.5	21.2	25.2	May 07	101	85
Canyon	7870	12.4	N/A	N/A	N/A	*	*
Evening Star	9040	25.5	24.7	29.3	May 01	103	87
Fisher Creek	9110	29.2	32.2	37.0	May 05	91	79
Monument Peak	8740	18.2	20.2	23.4	Apr 27	90	78
Northeast Entrance	7420	9.8	9.0	10.2	Apr 04	109	96
Parker Peak	9420	24.3	20.3	25.9	May 04	120	94
Sylvan Lake	8440	18.4	19.4	22.0	Apr 23	95	84
Thumb Divide	7970	15.0	16.2	17.7	Apr 13	93	85
Two Ocean Plateau	9240	28.8	28.4	34.9	May 03	101	83
White Mill	8730	23.0	23.2	27.4	May 05	99	84
Wolverine	7650	12.0	10.6	11.8	Mar 30	113	102
Basin Index (%)		100
WIND RIVER
Burroughs Creek	8760	12.5	N/A	N/A	N/A	*	*
Castle Creek	8410	6.1	6.3₍₁₀₎	7.9₍₁₀₎	Apr 03₍₁₀₎	97	77
Cold Springs	9640	7.4	7.0	8.3	Apr 09	106	89
Deer Park	9690	17.5	14.7₍₂₂₎	16.6₍₂₂₎	Apr 25₍₂₂₎	119	105
Hobbs Park	10080	14.4	14.2	18.1	May 06	101	80
Kirwin	9580	11.9	10.5	13.2	May 01	113	90
Little Warm	9370	10.8	10.0	10.6	Apr 17	108	102
South Pass	9040	14.7	14.6	16.6	Apr 22	101	89
St. Lawrence Alt	8610	5.2	N/A	N/A	N/A	*	*
Togwotee Pass	9590	24.4	23.2	26.6	May 03	105	92
Townsend Creek	8720	10.4	9.2	10.6	Apr 19	113	98
Basin Index (%)		107
BIGHORN BASIN
Bald Mtn.	9360	20.6	19.2	22.6	May 07	107	91
Bear Trap Meadow	8200	5.5	5.8	7.4	Apr 07	95	74
Bone Springs Div	9340	15.7	16.8	19.2	May 05	93	82
Grave Springs	8560	8.1	8.2₍₂₈₎	10.0₍₂₈₎	Apr 19₍₂₈₎	99	81
Kirwin	9580	11.9	10.5	13.2	May 01	113	90
Marquette	8800	10.1	7.2	9.9	May 04	140	102
Middle Powder	7760	9.9	10.8	13.2	Apr 23	92	75
Owl Creek	8990	5.8	5.6	6.4	Apr 12	104	91
Powder River Pass	9480	7.6	10.4	12.2	Apr 19	73	62
Shell Creek	9570	13.0	15.0	18.2	May 05	87	71
Timber Creek	7910	6.8	4.8	6.0	Apr 17	142	113
Basin Index (%)		101
SHOSHONE RIVER
Blackwater	9840	23.8	22.4	26.8	May 09	106	89
Evening Star	9040	25.5	24.7	29.3	May 01	103	87
Marquette	8800	10.1	7.2	9.9	May 04	140	102
Sylvan Lake	8440	18.4	19.4	22.0	Apr 23	95	84
Sylvan Road	7140	8.8	10.6	12.3	Apr 07	83	72
Younts Peak	8340	15.3	14.2₍₂₈₎	15.6₍₂₈₎	Apr 25₍₂₈₎	108	98
Basin Index (%)		103
POWDER RIVER
Bear Trap Meadow	8200	5.5	5.8	7.4	Apr 07	95	74
Cloud Peak Reservoir	9830	11.1	14.4	18.0	May 05	77	62
Grave Springs	8560	8.1	8.2₍₂₈₎	10.0₍₂₈₎	Apr 19₍₂₈₎	99	81
Hansen Sawmill	8360	5.4	6.2	7.0	Apr 13	87	77
Middle Powder	7760	9.9	10.8	13.2	Apr 23	92	75
Powder River Pass	9480	7.6	10.4	12.2	Apr 19	73	62
Soldier Park	8680	3.7	7.7₍₁₀₎	8.4₍₁₀₎	Apr 17₍₁₀₎	48	44
Basin Index (%)		81
TONGUE RIVER
Big Goose	8010	8.2	8.6₍₂₂₎	10.1₍₂₂₎	Apr 25₍₂₂₎	95	81
Bone Springs Div	9340	15.7	16.8	19.2	May 05	93	82
Burgess Junction	7900	11.4	10.6	13.0	May 03	108	88
Dome Lake	8890	11.0	11.6	13.5	Apr 27	95	81
Little Goose	8560	10.0	9.5₍₁₀₎	12.2₍₁₀₎	Apr 27₍₁₀₎	105	82
Sucker Creek	8840	12.0	11.8	14.9	May 03	102	81
Tie Creek	7050	7.1	4.8₍₂₆₎	6.6₍₂₆₎	Apr 05₍₂₆₎	148	108
Basin Index (%)		102
BELLE FOURCHE
Blind Park	6900	4.2	7.1	8.1	Mar 30	59	52
Cole Canyon	5930	5.7	5.4₍₂₀₎	6.3₍₂₀₎	Apr 03₍₂₀₎	106	90
North Rapid Creek	6150	3.0	6.4₍₂₄₎	7.4₍₂₄₎	Apr 02₍₂₄₎	47	41
Basin Index (%)		68
CHEYENNE RIVER BASIN
Blind Park	6900	4.2	7.1	8.1	Mar 30	59	52
North Rapid Creek	6150	3.0	6.4₍₂₄₎	7.4₍₂₄₎	Apr 02₍₂₄₎	47	41
Basin Index (%)		53
UPPER N. PLATTE
Arapaho Ridge	10960	20.6	21.8₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	94	82
Blackhall Mtn	9830	29.8	30.4₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	98	86
Cinnabar Park	9670	17.7	20.6₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	86	79
Columbine	9170	24.7	21.8	24.6	Apr 05	113	100
Divide Peak	8700	16.9	19.6	21.4	Apr 15	86	79
Joe Wright	10140	23.1	20.1	24.0	May 05	115	96
Laprele Creek	8370	8.1	9.6	10.4	Apr 05	84	78
Med Bow	10500	41.2	N/A	N/A	N/A	*	*
Never Summer	10300	20.9	20.4₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	102	88
North French Creek	10150	32.1	28.3	34.2	Apr 30	113	94
Old Battle	9850	29.8	31.0	38.8	May 05	96	77
Rawah	9100	11.0	10.6₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	104	90
Sage Creek Basin	7830	9.7	12.6₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	77	66
Sand Lake	10080	29.7	27.0	33.1	May 05	110	90
South Brush Creek	8480	10.5	11.8	12.4	Apr 03	89	85
Tower	10610	43.4	42.8	49.0	May 07	101	89
Webber Springs	9250	19.2	22.2	23.9	Apr 15	86	80
Whiskey Park	8950	27.4	27.1	30.8	Apr 17	101	89
Willow Creek Pass	9520	13.3	13.0	16.4	May 03	102	81
Zirkel	9320	24.5	27.6₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	89	86
Basin Index (%)		99
SWEETWATER
Deer Park	9690	17.5	14.7₍₂₂₎	16.6₍₂₂₎	Apr 25₍₂₂₎	119	105
Larsen Creek	8880	6.8	10.1₍₁₀₎	11.0₍₁₀₎	Apr 03₍₁₀₎	67	62
South Pass	9040	14.7	14.6	16.6	Apr 22	101	89
Basin Index (%)		99
LOWER N. PLATTE
Casper Mtn.	7940	9.3	13.0	16.0	Apr 19	72	58
Laprele Creek	8370	8.1	9.6	10.4	Apr 05	84	78
Reno Hill	8410	12.0	14.0	16.3	Apr 21	86	74
Windy Peak	7900	6.5	8.0	8.4	Apr 08	81	77
Basin Index (%)		80
LARAMIE RIVER
Brooklyn Lake	10250	23.5	21.4	25.4	Apr 25	110	93
Cinnabar Park	9670	17.7	20.6₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	86	79
Crow Creek	8320	2.4	6.2₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	39	32
Deadman Hill	10240	17.8	15.8	21.8	May 04	113	82
Rawah	9100	11.0	10.6₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	104	90
Roach	9710	13.6	15.4	17.5	Apr 25	88	78
Windy Peak	7900	6.5	8.0	8.4	Apr 08	81	77
Basin Index (%)		94
S. PLATTE
Crow Creek	8320	2.4	6.2₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	39	32
Basin Index (%)		39
LITTLE SNAKE RIVER
Battle Mountain	7460	8.8	10.5	12.6	Mar 27	84	70
Divide Peak	8700	16.9	19.6	21.4	Apr 15	86	79
Elk River	8710	15.2	18.2	19.4	Apr 05	84	78
Elkhead Divide	8780	15.9	N/A	N/A	N/A	*	*
Little Snake River	8930	24.7	26.5₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	93	85
Old Battle	9850	29.8	31.0	38.8	May 05	96	77
Sage Creek Basin	7830	9.7	12.6₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	77	66
Sandstone RS	8150	12.6	12.8	14.2	Apr 05	98	89
Whiskey Park	8950	27.4	27.1	30.8	Apr 17	101	89
Basin Index (%)		92
UPPER GREEN RIVER
Big Sandy Opening	9100	11.2	12.9	14.2	Apr 17	87	79
Blind Bull Sum	8880	25.9	23.6	26.1	May 03	110	99
East Rim Divide	8010	11.1	10.4	11.1	Apr 11	107	100
Elkhart Park G.S.	9410	12.7	12.4	13.6	Apr 23	102	93
Gros Ventre Summit	8760	12.8	12.8	13.6	Apr 23	100	94
Gunsight Pass	9830	13.9	12.8₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	109	101
Indian Creek	9400	26.3	23.4	24.9	Apr 21	112	106
Kendall R.S.	7790	13.8	11.2	12.2	Apr 01	123	113
Larsen Creek	8880	6.8	10.1₍₁₀₎	11.0₍₁₀₎	Apr 03₍₁₀₎	67	62
Loomis Park	8240	15.3	15.4	16.2	Apr 09	99	94
New Fork Lake	8380	9.9	10.5	10.9	Apr 08	94	91
Pocket Creek	9370	-M	N/A	N/A	N/A	*	*
Snider Basin	8080	14.0	12.6	13.4	Apr 09	111	104
Spring Creek Divide	9020	26.6	24.6	26.0	Apr 27	108	102
Triple Peak	8520	28.7	22.8	24.4	Apr 15	126	118
Basin Index (%)		106
LOWER GREEN RIVER
Blacks Fork Jct	8880	10.9	9.0₍₁₀₎	9.4₍₁₀₎	Apr 05₍₁₀₎	121	116
Buck Pasture	9620	14.1	N/A	N/A	N/A	*	*
EF Blacks Fork GS	9360	10.0	11.4₍₁₀₎	12.4₍₁₀₎	Apr 05₍₁₀₎	88	81
Hams Fork	7870	11.4	11.1	11.5	Apr 01	103	99
Henrys Fork	10180	-M	N/A	N/A	N/A	*	*
Hewinta	9510	9.2	10.8	12.7	Apr 09	85	72
Hickerson Park	9130	6.4	7.4	8.8	Apr 07	86	73
Hole-in-Rock	9170	6.6	6.9	8.0	Apr 09	96	82
Indian Creek	9400	26.3	23.4	24.9	Apr 21	112	106
Kelley R.S.	8240	17.2	14.9	15.2	Apr 09	115	113
Spirit Lk	10240	13.1	13.2₍₁₁₎	14.1₍₁₁₎	Apr 11₍₁₁₎	99	93
Steel Creek Park	10140	16.1	14.2	18.8	May 05	113	86
Basin Index (%)		104
UPPER BEAR RIVER
Bear River RS	8510	7.2	9.2₍₁₀₎	10.0₍₁₀₎	Apr 01₍₁₀₎	78	72
Bug Lake	7980	18.6	18.6	19.0	Apr 14	100	98
Burts Miller Ranch	7900	4.8	5.7₍₁₁₎	6.4₍₁₁₎	Mar 29₍₁₁₎	84	75
Chalk Creek #1	9160	20.1	22.8	24.6	Apr 17	88	82
Giveout	6940	9.2	8.0	8.8	Mar 20	115	105
Hayden Fork	9160	13.6	15.0	15.9	Apr 06	91	86
Kelley R.S.	8240	17.2	14.9	15.2	Apr 09	115	113
Lily Lake	9130	12.5	12.4	13.6	Apr 15	101	92
Monte Cristo	8930	25.6	27.2	29.6	Apr 17	94	86
Salt River Summit	7630	15.5	13.4	13.6	Apr 07	116	114
Spring Creek Divide	9020	26.6	24.6	26.0	Apr 27	108	102
Trial Lake	9970	25.1	21.4	24.2	Apr 25	117	104
Basin Index (%)		101

-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.