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 Saturday, April 26, 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	12.4	12.2	17.8	Apr 02	102	70
Blind Bull Sum	8880	28.4	25.0	26.1	May 03	114	109
Cottonwood Creek	7710	21.4	19.2	22.6	Apr 10	111	95
East Rim Divide	8010	5.4	8.6	11.1	Apr 11	63	49
Grand Targhee	9260	41.3	47.4₍₁₄₎	48.8₍₁₄₎	May 01₍₁₄₎	87	85
Granite Creek	6770	12.5	11.4	16.4	Apr 03	110	76
Grassy Lake	7330	26.9	31.0	34.2	Apr 15	87	79
Gros Ventre Summit	8760	12.5	12.9	13.6	Apr 23	97	92
Gunsight Pass	9830	13.9	13.4₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	104	101
Lewis Lake Divide	7880	28.5	31.3	33.4	Apr 20	91	85
Loomis Park	8240	12.9	12.0	16.2	Apr 09	108	80
Phillips Bench	8160	24.7	27.3	28.5	Apr 21	90	87
Salt River Summit	7630	11.3	10.2	13.6	Apr 07	111	83
Snake River Station	6900	11.6	13.2	18.0	Apr 03	88	64
Somsen Ranch	6830	3.0	4.7	12.8	Mar 28	64	23
Spring Creek Divide	9020	28.6	25.4	26.0	Apr 27	113	110
Thumb Divide	7970	-M	16.0	17.7	Apr 13	*	*
Togwotee Pass	9590	24.8	25.1	26.6	May 03	99	93
Triple Peak	8520	25.1	19.9	24.4	Apr 15	126	103
Two Ocean Plateau	9240	30.8	32.6	34.9	May 03	94	88
Willow Creek	8060	31.6	28.1	31.4	Apr 14	112	101
Younts Peak	8340	13.0	15.0₍₂₈₎	15.6₍₂₈₎	Apr 25₍₂₈₎	87	83
Basin Index (%)		99
MADISON HEADWATERS IN WYOMING
Black Bear	8160	33.2	40.0	41.4	Apr 29	83	80
Canyon	7870	11.5	13.1	14.5	Apr 17	88	79
Madison Plateau	7710	21.6	23.2	24.7	Apr 24	93	87
West Yellowstone	6680	2.4	4.2	11.6	Apr 03	57	21
Whiskey Creek	6790	13.6	15.0	16.5	Apr 17	91	82
Basin Index (%)		86
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake	9360	24.4	24.1	25.2	May 07	101	97
Canyon	7870	11.5	13.1	14.5	Apr 17	88	79
Evening Star	9040	27.5	26.8	29.3	May 01	103	94
Fisher Creek	9110	32.2	35.6	37.0	May 05	90	87
Monument Peak	8740	20.0	22.4	23.4	Apr 27	89	85
Northeast Entrance	7420	4.2	4.8	10.2	Apr 04	88	41
Parker Peak	9420	26.8	23.5	25.9	May 04	114	103
Sylvan Lake	8440	15.5	20.2	22.0	Apr 23	77	70
Thumb Divide	7970	-M	16.0	17.7	Apr 13	*	*
Two Ocean Plateau	9240	30.8	32.6	34.9	May 03	94	88
White Mill	8730	26.6	25.8	27.4	May 05	103	97
Wolverine	7650	9.4	5.3	11.8	Mar 30	177	80
Basin Index (%)		98
WIND RIVER
Burroughs Creek	8760	10.6	N/A	N/A	N/A	*	*
Castle Creek	8410	2.2	2.4₍₁₀₎	7.9₍₁₀₎	Apr 03₍₁₀₎	92	28
Cold Springs	9640	4.4	5.9	8.3	Apr 09	75	53
Deer Park	9690	17.5	15.6₍₂₂₎	16.6₍₂₂₎	Apr 25₍₂₂₎	112	105
Hobbs Park	10080	15.1	16.1	18.1	May 06	94	83
Kirwin	9580	12.7	12.1	13.2	May 01	105	96
Little Warm	9370	9.9	10.1	10.6	Apr 17	98	93
South Pass	9040	14.4	14.7	16.6	Apr 22	98	87
St. Lawrence Alt	8610	0.6	N/A	N/A	N/A	*	*
Togwotee Pass	9590	24.8	25.1	26.6	May 03	99	93
Townsend Creek	8720	11.4	9.5	10.6	Apr 19	120	108
Basin Index (%)		101
BIGHORN BASIN
Bald Mtn.	9360	22.1	20.6	22.6	May 07	107	98
Bear Trap Meadow	8200	0.5	3.0	7.4	Apr 07	17	7
Bone Springs Div	9340	17.7	17.4	19.2	May 05	102	92
Grave Springs	8560	6.0	8.2₍₂₈₎	10.0₍₂₈₎	Apr 19₍₂₈₎	73	60
Kirwin	9580	12.7	12.1	13.2	May 01	105	96
Marquette	8800	9.6	8.0	9.9	May 04	120	97
Middle Powder	7760	9.3	11.8	13.2	Apr 23	79	70
Owl Creek	8990	1.2	2.7	6.4	Apr 12	44	19
Powder River Pass	9480	6.3	11.0	12.2	Apr 19	57	52
Shell Creek	9570	14.5	16.6	18.2	May 05	87	80
Timber Creek	7910	5.5	3.8	6.0	Apr 17	145	92
Basin Index (%)		91
SHOSHONE RIVER
Blackwater	9840	27.1	25.5	26.8	May 09	106	101
Evening Star	9040	27.5	26.8	29.3	May 01	103	94
Marquette	8800	9.6	8.0	9.9	May 04	120	97
Sylvan Lake	8440	15.5	20.2	22.0	Apr 23	77	70
Sylvan Road	7140	0.0	7.6	12.3	Apr 07	0	0
Younts Peak	8340	13.0	15.0₍₂₈₎	15.6₍₂₈₎	Apr 25₍₂₈₎	87	83
Basin Index (%)		90
POWDER RIVER
Bear Trap Meadow	8200	0.5	3.0	7.4	Apr 07	17	7
Cloud Peak Reservoir	9830	11.9	15.8	18.0	May 05	75	66
Grave Springs	8560	6.0	8.2₍₂₈₎	10.0₍₂₈₎	Apr 19₍₂₈₎	73	60
Hansen Sawmill	8360	4.0	4.8	7.0	Apr 13	83	57
Middle Powder	7760	9.3	11.8	13.2	Apr 23	79	70
Powder River Pass	9480	6.3	11.0	12.2	Apr 19	57	52
Soldier Park	8680	1.5	6.2₍₁₀₎	8.4₍₁₀₎	Apr 17₍₁₀₎	24	18
Basin Index (%)		65
TONGUE RIVER
Big Goose	8010	8.1	9.0₍₂₂₎	10.1₍₂₂₎	Apr 25₍₂₂₎	90	80
Bone Springs Div	9340	17.7	17.4	19.2	May 05	102	92
Burgess Junction	7900	12.7	12.0	13.0	May 03	106	98
Dome Lake	8890	11.2	11.4	13.5	Apr 27	98	83
Little Goose	8560	9.9	11.0₍₁₀₎	12.2₍₁₀₎	Apr 27₍₁₀₎	90	81
Sucker Creek	8840	12.0	13.3	14.9	May 03	90	81
Tie Creek	7050	5.1	3.0₍₂₆₎	6.6₍₂₆₎	Apr 05₍₂₆₎	170	77
Basin Index (%)		99
BELLE FOURCHE
Blind Park	6900	0.2	3.2	8.1	Mar 30	6	2
Cole Canyon	5930	-M	1.2₍₂₀₎	6.3₍₂₀₎	Apr 03₍₂₀₎	*	*
North Rapid Creek	6150	0.0	2.6₍₂₄₎	7.4₍₂₄₎	Apr 02₍₂₄₎	0	0
Basin Index (%)		3
CHEYENNE RIVER BASIN
Blind Park	6900	0.2	3.2	8.1	Mar 30	6	2
North Rapid Creek	6150	0.0	2.6₍₂₄₎	7.4₍₂₄₎	Apr 02₍₂₄₎	0	0
Basin Index (%)		3
UPPER N. PLATTE
Arapaho Ridge	10960	19.8	23.9₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	83	79
Blackhall Mtn	9830	30.0	32.3₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	93	87
Cinnabar Park	9670	14.7	20.1₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	73	66
Columbine	9170	15.0	20.6	24.6	Apr 05	73	61
Divide Peak	8700	11.5	17.3	21.4	Apr 15	66	54
Joe Wright	10140	22.4	22.8	24.0	May 05	98	93
Laprele Creek	8370	4.3	7.2	10.4	Apr 05	60	41
Med Bow	10500	41.3	N/A	N/A	N/A	*	*
Never Summer	10300	21.2	22.1₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	96	89
North French Creek	10150	32.8	31.4	34.2	Apr 30	104	96
Old Battle	9850	30.2	35.2	38.8	May 05	86	78
Rawah	9100	5.7	8.6₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	66	47
Sage Creek Basin	7830	0.0	2.6₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	0	0
Sand Lake	10080	29.4	31.1	33.1	May 05	95	89
South Brush Creek	8480	3.8	8.4	12.4	Apr 03	45	31
Tower	10610	43.0	46.8	49.0	May 07	92	88
Webber Springs	9250	17.5	22.1	23.9	Apr 15	79	73
Whiskey Park	8950	24.8	27.4	30.8	Apr 17	91	81
Willow Creek Pass	9520	13.6	14.9	16.4	May 03	91	83
Zirkel	9320	15.2	24.3₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	63	53
Basin Index (%)		85
SWEETWATER
Deer Park	9690	17.5	15.6₍₂₂₎	16.6₍₂₂₎	Apr 25₍₂₂₎	112	105
Larsen Creek	8880	1.3	5.8₍₁₀₎	11.0₍₁₀₎	Apr 03₍₁₀₎	22	12
South Pass	9040	14.4	14.7	16.6	Apr 22	98	87
Basin Index (%)		92
LOWER N. PLATTE
Casper Mtn.	7940	8.2	13.6	16.0	Apr 19	60	51
Laprele Creek	8370	4.3	7.2	10.4	Apr 05	60	41
Reno Hill	8410	12.2	14.0	16.3	Apr 21	87	75
Windy Peak	7900	3.3	6.0	8.4	Apr 08	55	39
Basin Index (%)		69
LARAMIE RIVER
Brooklyn Lake	10250	22.1	23.1	25.4	Apr 25	96	87
Cinnabar Park	9670	14.7	20.1₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	73	66
Crow Creek	8320	0.1	0.8₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	12	1
Deadman Hill	10240	17.2	19.4	21.8	May 04	89	79
Rawah	9100	5.7	8.6₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	66	47
Roach	9710	11.3	16.3	17.5	Apr 25	69	65
Windy Peak	7900	3.3	6.0	8.4	Apr 08	55	39
Basin Index (%)		79
S. PLATTE
Crow Creek	8320	0.1	0.8₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	12	1
Basin Index (%)		12
LITTLE SNAKE RIVER
Battle Mountain	7460	0.0	2.7	12.6	Mar 27	0	0
Divide Peak	8700	11.5	17.3	21.4	Apr 15	66	54
Elk River	8710	7.5	14.2	19.4	Apr 05	53	39
Elkhead Divide	8780	10.5	N/A	N/A	N/A	*	*
Little Snake River	8930	19.7	24.2₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	81	68
Old Battle	9850	30.2	35.2	38.8	May 05	86	78
Sage Creek Basin	7830	0.0	2.6₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	0	0
Sandstone RS	8150	4.7	8.0	14.2	Apr 05	59	33
Whiskey Park	8950	24.8	27.4	30.8	Apr 17	91	81
Basin Index (%)		75
UPPER GREEN RIVER
Big Sandy Opening	9100	12.3	12.6	14.2	Apr 17	98	87
Blind Bull Sum	8880	28.4	25.0	26.1	May 03	114	109
East Rim Divide	8010	5.4	8.6	11.1	Apr 11	63	49
Elkhart Park G.S.	9410	11.8	12.1	13.6	Apr 23	98	87
Gros Ventre Summit	8760	12.5	12.9	13.6	Apr 23	97	92
Gunsight Pass	9830	13.9	13.4₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	104	101
Indian Creek	9400	25.4	23.4	24.9	Apr 21	109	102
Kendall R.S.	7790	8.9	6.6	12.2	Apr 01	135	73
Larsen Creek	8880	1.3	5.8₍₁₀₎	11.0₍₁₀₎	Apr 03₍₁₀₎	22	12
Loomis Park	8240	12.9	12.0	16.2	Apr 09	108	80
New Fork Lake	8380	6.7	7.4	10.9	Apr 08	91	61
Pocket Creek	9370	-M	N/A	N/A	N/A	*	*
Snider Basin	8080	9.5	9.4	13.4	Apr 09	101	71
Spring Creek Divide	9020	28.6	25.4	26.0	Apr 27	113	110
Triple Peak	8520	25.1	19.9	24.4	Apr 15	126	103
Basin Index (%)		104
LOWER GREEN RIVER
Blacks Fork Jct	8880	5.4	5.6₍₁₀₎	9.4₍₁₀₎	Apr 05₍₁₀₎	96	57
Buck Pasture	9620	9.1	N/A	N/A	N/A	*	*
EF Blacks Fork GS	9360	4.5	8.4₍₁₀₎	12.4₍₁₀₎	Apr 05₍₁₀₎	54	36
Hams Fork	7870	-M	5.6	11.5	Apr 01	*	*
Henrys Fork	10180	-M	N/A	N/A	N/A	*	*
Hewinta	9510	2.9	6.7	12.7	Apr 09	43	23
Hickerson Park	9130	0.0	4.8	8.8	Apr 07	0	0
Hole-in-Rock	9170	0.0	4.6	8.0	Apr 09	0	0
Indian Creek	9400	25.4	23.4	24.9	Apr 21	109	102
Kelley R.S.	8240	13.8	13.0	15.2	Apr 09	106	91
Spirit Lk	10240	10.2	13.2₍₁₁₎	14.1₍₁₁₎	Apr 11₍₁₁₎	77	72
Steel Creek Park	10140	15.9	16.8	18.8	May 05	95	85
Basin Index (%)		81
UPPER BEAR RIVER
Bear River RS	8510	0.0	0.9₍₁₀₎	10.0₍₁₀₎	Apr 01₍₁₀₎	0*	0*
Bug Lake	7980	12.1	16.0	19.0	Apr 14	76	64
Burts Miller Ranch	7900	0.0	0.0₍₁₁₎	6.4₍₁₁₎	Mar 29₍₁₁₎	*	0*
Chalk Creek #1	9160	16.8	21.9	24.6	Apr 17	77	68
Giveout	6940	0.0	0.2	8.8	Mar 20	0*	0*
Hayden Fork	9160	4.4	10.2	15.9	Apr 06	43	28
Kelley R.S.	8240	13.8	13.0	15.2	Apr 09	106	91
Lily Lake	9130	6.9	10.2	13.6	Apr 15	68	51
Monte Cristo	8930	19.6	26.0	29.6	Apr 17	75	66
Salt River Summit	7630	11.3	10.2	13.6	Apr 07	111	83
Spring Creek Divide	9020	28.6	25.4	26.0	Apr 27	113	110
Trial Lake	9970	21.6	22.7	24.2	Apr 25	95	89
Basin Index (%)		86

-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.