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 Thursday, September 10, 2026

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	0.0	0.0	17.8	Apr 02	*	0*
Blind Bull Sum	8880	0.0	0.0	26.1	May 03	*	0*
Cottonwood Creek	7710	0.0	0.0	22.6	Apr 10	*	0*
East Rim Divide	8010	0.0	0.0	11.1	Apr 11	*	0*
Grand Targhee	9260	0.0	0.0₍₁₄₎	48.8₍₁₄₎	May 01₍₁₄₎	*	0*
Granite Creek	6770	0.7	0.0	16.4	Apr 03	*	4*
Grassy Lake	7330	-M	0.0	34.2	Apr 15	*	*
Gros Ventre Summit	8760	0.0	0.0	13.6	Apr 23	*	0*
Gunsight Pass	9820	0.0	0.0₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	*	0*
Lewis Lake Divide	7880	0.0	0.0	33.4	Apr 20	*	0*
Loomis Park	8240	0.0	0.0	16.2	Apr 09	*	0*
Phillips Bench	8170	0.0	0.0	28.5	Apr 21	*	0*
Salt River Summit	7630	0.0	0.0	13.6	Apr 07	*	0*
Snake River Station	6900	0.0	0.0	18.0	Apr 03	*	0*
Somsen Ranch	6830	0.4	0.0	12.8	Mar 28	*	3*
Spring Creek Divide	9020	0.2	0.0	26.0	Apr 27	*	1*
Thumb Divide	7970	0.0	0.0	17.7	Apr 13	*	0*
Togwotee Pass	9590	0.0	0.0	26.6	May 03	*	0*
Triple Peak	8520	0.0	0.0	24.4	Apr 15	*	0*
Two Ocean Plateau	9240	0.0	0.0	34.9	May 03	*	0*
Willow Creek	8060	0.0	0.0	31.4	Apr 14	*	0*
Younts Peak	8340	2.2	0.0₍₂₉₎	15.6₍₂₈₎	Apr 25₍₂₈₎	*	14*
Basin Index (%)		*
MADISON HEADWATERS IN WYOMING
Black Bear	8160	0.0	0.0	41.4	Apr 29	*	0*
Canyon	7870	0.1	0.0	14.5	Apr 17	*	1*
Madison Plateau	7710	0.0	0.0	24.7	Apr 24	*	0*
West Yellowstone	6680	0.4	0.0	11.6	Apr 03	*	3*
Whiskey Creek	6790	0.1	0.0	16.5	Apr 17	*	1*
Basin Index (%)		*
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake	9360	0.0	0.0	25.2	May 07	*	0*
Canyon	7870	0.1	0.0	14.5	Apr 17	*	1*
Evening Star	9030	0.1	0.0	29.3	May 01	*	0*
Fisher Creek	9110	0.0	0.0	37.0	May 05	*	0*
Monument Peak	8740	0.1	0.0	23.4	Apr 27	*	0*
Northeast Entrance	7420	0.0	0.0	10.2	Apr 04	*	0*
Parker Peak	9420	0.0	0.0	25.9	May 04	*	0*
Sylvan Lake	8440	0.0	0.0	22.0	Apr 23	*	0*
Thumb Divide	7970	0.0	0.0	17.7	Apr 13	*	0*
Two Ocean Plateau	9240	0.0	0.0	34.9	May 03	*	0*
White Mill	8730	0.0	0.0	27.4	May 05	*	0*
Wolverine	7660	0.0	0.0	11.8	Mar 30	*	0*
Basin Index (%)		*
WIND RIVER
Burroughs Creek	8760	-M	N/A	N/A	N/A	*	*
Castle Creek	8410	0.3	0.0₍₁₁₎	7.9₍₁₀₎	Apr 03₍₁₀₎	*	4*
Cold Springs	9640	0.0	0.0	8.3	Apr 09	*	0*
Deer Park	9690	0.0	0.0₍₂₃₎	16.6₍₂₂₎	Apr 25₍₂₂₎	*	0*
Hobbs Park	10080	0.0	0.0	18.1	May 06	*	0*
Kirwin	9580	0.0	0.0	13.2	May 01	*	0*
Little Warm	9370	0.0	0.0	10.6	Apr 17	*	0*
South Pass	9040	0.0	0.0	16.6	Apr 22	*	0*
St. Lawrence Alt	8610	0.0	N/A	N/A	N/A	*	*
Togwotee Pass	9590	0.0	0.0	26.6	May 03	*	0*
Townsend Creek	8720	0.2	0.0	10.6	Apr 19	*	2*
Basin Index (%)		*
BIGHORN BASIN
Bald Mtn.	9360	0.1	0.0	22.6	May 07	*	0*
Bear Trap Meadow	8200	0.2	0.0	7.4	Apr 07	*	3*
Bone Springs Div	9340	0.0	0.0	19.2	May 05	*	0*
Grave Springs	8560	0.1	0.0₍₂₉₎	10.0₍₂₈₎	Apr 19₍₂₈₎	*	1*
Kirwin	9580	0.0	0.0	13.2	May 01	*	0*
Marquette	8800	0.0	0.0	9.9	May 04	*	0*
Middle Powder	7760	0.0	0.0	13.2	Apr 23	*	0*
Owl Creek	8990	0.1	0.0	6.4	Apr 12	*	2*
Powder River Pass	9480	0.0	0.0	12.2	Apr 19	*	0*
Shell Creek	9570	0.1	0.0	18.2	May 05	*	1*
Timber Creek	7910	0.0	0.0	6.0	Apr 17	*	0*
Basin Index (%)		*
SHOSHONE RIVER
Blackwater	9830	0.0	0.0	26.8	May 09	*	0*
Evening Star	9030	0.1	0.0	29.3	May 01	*	0*
Marquette	8800	0.0	0.0	9.9	May 04	*	0*
Sylvan Lake	8440	0.0	0.0	22.0	Apr 23	*	0*
Sylvan Road	7140	0.0	0.0	12.3	Apr 07	*	0*
Younts Peak	8340	2.2	0.0₍₂₉₎	15.6₍₂₈₎	Apr 25₍₂₈₎	*	14*
Basin Index (%)		*
POWDER RIVER
Bear Trap Meadow	8200	0.2	0.0	7.4	Apr 07	*	3*
Cloud Peak Reservoir	9830	0.0	0.0	18.0	May 05	*	0*
Grave Springs	8560	0.1	0.0₍₂₉₎	10.0₍₂₈₎	Apr 19₍₂₈₎	*	1*
Hanson Sawmill	8360	0.1	0.0	7.0	Apr 13	*	1*
Middle Powder	7760	0.0	0.0	13.2	Apr 23	*	0*
Powder River Pass	9480	0.0	0.0	12.2	Apr 19	*	0*
Soldier Park	8680	0.0	0.0₍₁₁₎	8.4₍₁₀₎	Apr 17₍₁₀₎	*	0*
Basin Index (%)		*
TONGUE RIVER
Big Goose	8010	-M	0.0₍₂₃₎	10.1₍₂₂₎	Apr 25₍₂₂₎	*	*
Bone Springs Div	9340	0.0	0.0	19.2	May 05	*	0*
Burgess Junction	7910	0.0	0.0	13.0	May 03	*	0*
Dome Lake	8890	0.0	0.0	13.5	Apr 27	*	0*
Little Goose	8560	0.0	0.0₍₁₁₎	12.2₍₁₀₎	Apr 27₍₁₀₎	*	0*
Sucker Creek	8840	0.0	0.0	14.9	May 03	*	0*
Tie Creek	7050	0.0	0.0₍₂₇₎	6.6₍₂₆₎	Apr 05₍₂₆₎	*	0*
Basin Index (%)		*
BELLE FOURCHE
Blind Park	6900	0.0	0.0	8.1	Mar 30	*	0*
Cole Canyon	5930	0.0	0.0₍₂₁₎	6.3₍₂₀₎	Apr 03₍₂₀₎	*	0*
North Rapid Creek	6150	0.1	0.0₍₂₅₎	7.4₍₂₄₎	Apr 02₍₂₄₎	*	1*
Basin Index (%)		*
CHEYENNE RIVER BASIN
Blind Park	6900	0.0	0.0	8.1	Mar 30	*	0*
North Rapid Creek	6150	0.1	0.0₍₂₅₎	7.4₍₂₄₎	Apr 02₍₂₄₎	*	1*
Basin Index (%)		*
UPPER N. PLATTE
Arapaho Ridge	10960	0.0	0.0₍₁₉₎	25.2₍₁₈₎	May 01₍₁₈₎	*	0*
Blackhall Mtn	9830	0.0	0.0₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	*	0*
Cinnabar Park	9670	0.0	0.0₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	*	0*
Columbine	9170	0.3	0.0	24.6	Apr 05	*	1*
Divide Peak	8700	0.2	0.0	21.4	Apr 15	*	1*
Joe Wright	10140	0.2	0.0	24.0	May 05	*	1*
Laprele Creek	8370	0.2	0.0	10.4	Apr 05	*	2*
Med Bow	10500	0.0	N/A	N/A	N/A	*	*
Never Summer	10300	-M	0.0₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	*	*
North French Creek	10150	1.2	0.0	34.2	Apr 30	*	4*
Old Battle	9840	0.0	0.0	38.8	May 05	*	0*
Rawah	9100	0.0	0.0₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	*	0*
Sage Creek Basin	7830	0.0	0.0₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	*	0*
Sand Lake	10080	1.0	0.0	33.1	May 05	*	3*
South Brush Creek	8480	0.0	0.0	12.4	Apr 03	*	0*
Tower	10610	0.0	0.0	49.0	May 07	*	0*
Webber Springs	9250	0.1	0.0	23.9	Apr 15	*	0*
Whiskey Park	8950	0.0	0.0	30.8	Apr 17	*	0*
Willow Creek Pass	9520	0.5	0.0	16.4	May 03	*	3*
Zirkel	9320	0.0	0.0₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	*	0*
Basin Index (%)		*
SWEETWATER
Deer Park	9690	0.0	0.0₍₂₃₎	16.6₍₂₂₎	Apr 25₍₂₂₎	*	0*
Larsen Creek	8880	0.0	0.0₍₁₁₎	11.0₍₁₀₎	Apr 03₍₁₀₎	*	0*
South Pass	9040	0.0	0.0	16.6	Apr 22	*	0*
Basin Index (%)		*
LOWER N. PLATTE
Casper Mtn.	7940	0.0	0.0	16.0	Apr 19	*	0*
Laprele Creek	8370	0.2	0.0	10.4	Apr 05	*	2*
Reno Hill	8410	0.3	0.0	16.3	Apr 21	*	2*
Windy Peak	7890	0.0	0.0	8.4	Apr 08	*	0*
Basin Index (%)		*
LARAMIE RIVER
Brooklyn Lake	10250	0.0	0.0	25.4	Apr 25	*	0*
Cinnabar Park	9670	0.0	0.0₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	*	0*
Crow Creek	8320	0.5	0.0₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	*	7*
Deadman Hill	10240	0.0	0.0	21.8	May 04	*	0*
Rawah	9100	0.0	0.0₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	*	0*
Roach	9710	0.0	0.0	17.5	Apr 25	*	0*
Windy Peak	7890	0.0	0.0	8.4	Apr 08	*	0*
Basin Index (%)		*
S. PLATTE
Crow Creek	8320	0.5	0.0₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	*	7*
Basin Index (%)		*
LITTLE SNAKE RIVER
Battle Mountain	7460	0.1	0.0	12.6	Mar 27	*	1*
Divide Peak	8700	0.2	0.0	21.4	Apr 15	*	1*
Elk River	8710	0.1	0.0	19.4	Apr 05	*	1*
Elkhead Divide	8780	0.0	N/A	N/A	N/A	*	*
Little Snake River	8930	0.4	0.0₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	*	1*
Old Battle	9840	0.0	0.0	38.8	May 05	*	0*
Sage Creek Basin	7830	0.0	0.0₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	*	0*
Sandstone RS	8150	0.0	0.0	14.2	Apr 05	*	0*
Whiskey Park	8950	0.0	0.0	30.8	Apr 17	*	0*
Basin Index (%)		*
UPPER GREEN RIVER
Big Sandy Opening	9100	-M	0.0	14.2	Apr 17	*	*
Blind Bull Sum	8880	0.0	0.0	26.1	May 03	*	0*
East Rim Divide	8010	0.0	0.0	11.1	Apr 11	*	0*
Elkhart Park G.S.	9410	0.0	0.0	13.6	Apr 23	*	0*
Gros Ventre Summit	8760	0.0	0.0	13.6	Apr 23	*	0*
Gunsight Pass	9820	0.0	0.0₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	*	0*
Indian Creek	9400	0.0	0.0	24.9	Apr 21	*	0*
Kendall R.S.	7790	0.0	0.0	12.2	Apr 01	*	0*
Larsen Creek	8880	0.0	0.0₍₁₁₎	11.0₍₁₀₎	Apr 03₍₁₀₎	*	0*
Loomis Park	8240	0.0	0.0	16.2	Apr 09	*	0*
New Fork Lake	8380	0.0	0.0	10.9	Apr 08	*	0*
Pocket Creek	9370	-M	N/A	N/A	N/A	*	*
Snider Basin	8080	0.0	0.0	13.4	Apr 09	*	0*
Spring Creek Divide	9020	0.2	0.0	26.0	Apr 27	*	1*
Triple Peak	8520	0.0	0.0	24.4	Apr 15	*	0*
Basin Index (%)		*
LOWER GREEN RIVER
Blacks Fork Jct	8880	0.0	0.0₍₁₀₎	9.4₍₁₀₎	Apr 05₍₁₀₎	*	0*
Buck Pasture	9630	0.0	N/A	N/A	N/A	*	*
EF Blacks Fork GS	9360	0.0	0.0₍₁₀₎	12.4₍₁₀₎	Apr 05₍₁₀₎	*	0*
Hams Fork	7860	0.0	0.0	11.5	Apr 01	*	0*
Henrys Fork	10180	-M	N/A	N/A	N/A	*	*
Hewinta	9510	0.0	0.0	12.7	Apr 09	*	0*
Hickerson Park	9120	0.0	0.0	8.8	Apr 07	*	0*
Hole-in-Rock	9170	0.0	0.0	8.0	Apr 09	*	0*
Indian Creek	9400	0.0	0.0	24.9	Apr 21	*	0*
Kelley R.S.	8240	0.0	0.0	15.2	Apr 09	*	0*
Spirit Lk	10240	0.0	0.0₍₁₁₎	14.1₍₁₁₎	Apr 11₍₁₁₎	*	0*
Steel Creek Park	10140	0.0	0.0	18.8	May 05	*	0*
Basin Index (%)		*
UPPER BEAR RIVER
Bear River RS	8510	0.0	0.0₍₁₀₎	10.0₍₁₀₎	Apr 01₍₁₀₎	*	0*
Bug Lake	7980	0.0	0.0	19.0	Apr 14	*	0*
Burts Miller Ranch	7900	0.0	0.0₍₁₂₎	6.4₍₁₁₎	Mar 29₍₁₁₎	*	0*
Chalk Creek #1	9160	0.0	0.0	24.6	Apr 17	*	0*
Giveout	6940	0.0	0.0	8.8	Mar 20	*	0*
Hayden Fork	9170	0.0	0.0	15.9	Apr 06	*	0*
Kelley R.S.	8240	0.0	0.0	15.2	Apr 09	*	0*
Lily Lake	9130	0.0	0.0	13.6	Apr 15	*	0*
Monte Cristo	8930	0.0	0.0	29.6	Apr 17	*	0*
Salt River Summit	7630	0.0	0.0	13.6	Apr 07	*	0*
Spring Creek Divide	9020	0.2	0.0	26.0	Apr 27	*	1*
Trial Lake	9970	0.8	0.0	24.2	Apr 25	*	3*
Basin Index (%)		*

-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.