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, June 09, 2023

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	7060	-M	0.0	17.8	Apr 02	*	*
Blind Bull Sum	8650	5.0	9.6	26.1	May 03	52	19
Cottonwood Creek	7670	0.1	0.0	22.6	Apr 10	*	0*
East Rim Divide	7930	-M	0.0	11.1	Apr 11	*	*
Grand Targhee	9260	22.6	27.4₍₁₄₎	48.8₍₁₄₎	May 01₍₁₄₎	82	46
Granite Creek	6770	-M	0.0	16.4	Apr 03	*	*
Grassy Lake	7265	-M	0.0	34.2	Apr 15	*	*
Gros Ventre Summit	8750	0.0	0.0	13.6	Apr 23	*	0*
Gunsight Pass	9820	0.2	0.2₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	100*	1*
Lewis Lake Divide	7850	-M	1.0	33.4	Apr 20	*	*
Loomis Park	8240	0.2	0.0	16.2	Apr 09	*	1*
Phillips Bench	8200	0.3	2.8	28.5	Apr 21	11	1
Salt River Summit	7640	-M	0.0	13.6	Apr 07	*	*
Snake River Station	6920	0.0	0.0	18.0	Apr 03	*	0*
Somsen Ranch	6800	-M	0.0	12.8	Mar 28	*	*
Spring Creek Divide	9000	10.1	5.4	26.0	Apr 27	187	39
Thumb Divide	7980	0.1	0.0	17.7	Apr 13	*	1*
Togwotee Pass	9580	0.1	14.8	26.6	May 03	1	0
Triple Peak	8500	-M	0.0	24.4	Apr 15	*	*
Two Ocean Plateau	9240	10.6	17.8	34.9	May 03	60	30
Willow Creek	8080	0.3	0.8	31.4	Apr 14	38*	1*
Younts Peak	8350	0.0	0.0₍₂₈₎	15.6₍₂₈₎	Apr 25₍₂₈₎	*	0*
Basin Index (%)		63*
MADISON HEADWATERS IN WYOMING
Black Bear	8170	18.0	18.3	41.4	Apr 29	98	43
Canyon	7870	0.0	N/A	N/A	N/A	*	*
Madison Plateau	7750	0.6	0.0	24.7	Apr 24	*	2*
West Yellowstone	6700	0.0	0.0	11.6	Apr 03	*	0*
Whiskey Creek	6800	0.0	0.0	16.5	Apr 17	*	0*
Basin Index (%)		102*
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake	9360	7.4	14.0	25.2	May 07	53	29
Canyon	7870	0.0	N/A	N/A	N/A	*	*
Evening Star	9200	0.0	12.4	29.3	May 01	0	0
Fisher Creek	9100	14.0	23.6	37.0	May 05	59	38
Monument Peak	8850	0.0	5.8	23.4	Apr 27	0	0
Northeast Entrance	7350	0.1	0.0	10.2	Apr 04	*	1*
Parker Peak	9400	0.0	8.0	25.9	May 04	0	0
Sylvan Lake	8420	0.1	0.0	22.0	Apr 23	*	0*
Thumb Divide	7980	0.1	0.0	17.7	Apr 13	*	1*
Two Ocean Plateau	9240	10.6	17.8	34.9	May 03	60	30
White Mill	8700	2.3	12.2	27.4	May 05	19	8
Wolverine	7650	0.1	0.0	11.8	Mar 30	*	1*
Basin Index (%)		37
WIND RIVER
Burroughs Creek	8750	0.0	N/A	N/A	N/A	*	*
Castle Creek	8400	0.0	0.0₍₁₀₎	7.9₍₁₀₎	Apr 03₍₁₀₎	*	0*
Cold Springs	9630	0.2	0.0	8.3	Apr 09	*	2*
Deer Park	9700	2.7	0.0₍₂₂₎	16.6₍₂₂₎	Apr 25₍₂₂₎	*	16*
Hobbs Park	10100	0.7	1.9	18.1	May 06	37	4
Kirwin	9550	0.0	0.0	13.2	May 01	*	0*
Little Warm	9370	0.0	0.0	10.6	Apr 17	*	0*
South Pass	9040	0.1	0.0	16.6	Apr 22	*	1*
St. Lawrence Alt	8620	0.0	N/A	N/A	N/A	*	*
Togwotee Pass	9580	0.1	14.8	26.6	May 03	1	0
Townsend Creek	8700	0.0	0.0	10.6	Apr 19	*	0*
Basin Index (%)		23*
BIGHORN BASIN
Bald Mtn.	9380	0.2	7.8	22.6	May 07	3	1
Bear Trap Meadow	8200	0.0	0.0	7.4	Apr 07	*	0*
Bone Springs Div	9350	0.0	0.9	19.2	May 05	0*	0*
Grave Springs	8550	0.1	0.0₍₂₈₎	10.0₍₂₈₎	Apr 19₍₂₈₎	*	1*
Kirwin	9550	0.0	0.0	13.2	May 01	*	0*
Marquette	8760	0.0	0.0	9.9	May 04	*	0*
Middle Powder	7760	0.0	0.0	13.2	Apr 23	*	0*
Owl Creek	8975	0.0	0.0	6.4	Apr 12	*	0*
Powder River Pass	9480	0.0	0.0	12.2	Apr 19	*	0*
Shell Creek	9580	0.0	3.2	18.2	May 05	0	0
Timber Creek	7950	0.0	0.0	6.0	Apr 17	*	0*
Basin Index (%)		3*
SHOSHONE RIVER
Blackwater	9780	2.9	14.8	26.8	May 09	20	11
Evening Star	9200	0.0	12.4	29.3	May 01	0	0
Marquette	8760	0.0	0.0	9.9	May 04	*	0*
Sylvan Lake	8420	0.1	0.0	22.0	Apr 23	*	0*
Sylvan Road	7120	0.0	0.0	12.3	Apr 07	*	0*
Younts Peak	8350	0.0	0.0₍₂₈₎	15.6₍₂₈₎	Apr 25₍₂₈₎	*	0*
Basin Index (%)		11*
POWDER RIVER
Bear Trap Meadow	8200	0.0	0.0	7.4	Apr 07	*	0*
Cloud Peak Reservoir	9860	0.1	1.4	18.0	May 05	7*	1*
Grave Springs	8550	0.1	0.0₍₂₈₎	10.0₍₂₈₎	Apr 19₍₂₈₎	*	1*
Hansen Sawmill	8360	0.0	0.0	7.0	Apr 13	*	0*
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	8720	0.0	0.0₍₁₀₎	8.4₍₁₀₎	Apr 17₍₁₀₎	*	0*
Basin Index (%)		14*
TONGUE RIVER
Big Goose	7990	0.2	0.0₍₂₂₎	10.1₍₂₂₎	Apr 25₍₂₂₎	*	2*
Bone Springs Div	9350	0.0	0.9	19.2	May 05	0*	0*
Burgess Junction	7880	0.0	0.0	13.0	May 03	*	0*
Dome Lake	8880	0.0	0.0	13.5	Apr 27	*	0*
Little Goose	8870	0.0	0.0₍₁₀₎	12.2₍₁₀₎	Apr 27₍₁₀₎	*	0*
Sucker Creek	8880	0.0	0.0	14.9	May 03	*	0*
Tie Creek	6870	0.0	0.0₍₂₆₎	6.6₍₂₆₎	Apr 05₍₂₆₎	*	0*
Basin Index (%)		22*
BELLE FOURCHE
Blind Park	6890	0.1	0.0	8.1	Mar 30	*	1*
Cole Canyon	5910	0.0	0.0₍₂₀₎	6.3₍₂₀₎	Apr 03₍₂₀₎	*	0*
North Rapid Creek	6130	0.1	0.0₍₂₄₎	7.4₍₂₄₎	Apr 02₍₂₄₎	*	1*
Basin Index (%)		*
CHEYENNE RIVER BASIN
Blind Park	6890	0.1	0.0	8.1	Mar 30	*	1*
North Rapid Creek	6130	0.1	0.0₍₂₄₎	7.4₍₂₄₎	Apr 02₍₂₄₎	*	1*
Basin Index (%)		*
UPPER N. PLATTE
Arapaho Ridge	10976	8.6	4.2₍₁₈₎	25.2₍₁₈₎	May 01₍₁₈₎	205	34
Blackhall Mtn	9839	4.6	14.5₍₁₁₎	34.6₍₁₁₎	Apr 27₍₁₁₎	32	13
Cinnabar Park	9707	0.0	0.0₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	*	0*
Columbine	9167	-M	0.0	24.6	Apr 05	*	*
Divide Peak	8730	0.0	0.0	21.4	Apr 15	*	0*
Joe Wright	10158	9.1	8.0	24.0	May 05	114	38
Laprele Creek	8390	0.0	0.0	10.4	Apr 05	*	0*
Med Bow	10512	17.8	N/A	N/A	N/A	*	*
Never Summer	10323	11.0	11.2₍₁₈₎	23.8₍₁₈₎	May 11₍₁₈₎	98	46
North French Creek	10153	5.8	15.3	34.2	Apr 30	38	17
Old Battle	9860	25.9	17.2	38.8	May 05	151	67
Rawah	9069	0.0	0.0₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	*	0*
Sage Creek Basin	7850	0.0	0.0₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	*	0*
Sand Lake	10098	-M	18.0	33.1	May 05	*	*
South Brush Creek	8495	0.0	0.0	12.4	Apr 03	*	0*
Tower	10620	22.4	23.6	49.0	May 07	95	46
Webber Springs	9260	1.2	0.0	23.9	Apr 15	*	5*
Whiskey Park	9020	0.0	0.0	30.8	Apr 17	*	0*
Willow Creek Pass	9523	0.0	0.0	16.4	May 03	*	0*
Zirkel	9338	-M	0.0₍₁₈₎	28.5₍₁₈₎	Apr 07₍₁₈₎	*	*
Basin Index (%)		94*
SWEETWATER
Deer Park	9700	2.7	0.0₍₂₂₎	16.6₍₂₂₎	Apr 25₍₂₂₎	*	16*
Larsen Creek	9000	-M	0.0₍₁₀₎	11.0₍₁₀₎	Apr 03₍₁₀₎	*	*
South Pass	9040	0.1	0.0	16.6	Apr 22	*	1*
Basin Index (%)		*
LOWER N. PLATTE
Casper Mtn.	7920	0.0	0.0	16.0	Apr 19	*	0*
Laprele Creek	8390	0.0	0.0	10.4	Apr 05	*	0*
Reno Hill	8430	0.0	0.0	16.3	Apr 21	*	0*
Windy Peak	7915	-M	0.0	8.4	Apr 08	*	*
Basin Index (%)		*
LARAMIE RIVER
Brooklyn Lake	10250	0.0	0.0	25.4	Apr 25	*	0*
Cinnabar Park	9707	0.0	0.0₍₁₇₎	22.4₍₁₇₎	Apr 19₍₁₇₎	*	0*
Crow Creek	8335	0.0	0.0₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	*	0*
Deadman Hill	10239	0.2	1.6	21.8	May 04	12*	1*
Rawah	9069	0.0	0.0₍₁₈₎	12.2₍₁₈₎	Apr 07₍₁₈₎	*	0*
Roach	9740	0.1	0.0	17.5	Apr 25	*	1*
Windy Peak	7915	-M	0.0	8.4	Apr 08	*	*
Basin Index (%)		19*
S. PLATTE
Crow Creek	8335	0.0	0.0₍₁₇₎	7.4₍₁₇₎	Apr 01₍₁₇₎	*	0*
Basin Index (%)		*
LITTLE SNAKE RIVER
Battle Mountain	7498	0.0	0.0	12.6	Mar 27	*	0*
Divide Peak	8730	0.0	0.0	21.4	Apr 15	*	0*
Elk River	8739	-M	0.0	19.4	Apr 05	*	*
Elkhead Divide	8800	0.1	N/A	N/A	N/A	*	*
Little Snake River	8928	0.0	0.0₍₁₆₎	29.0₍₁₆₎	Apr 09₍₁₆₎	*	0*
Old Battle	9860	25.9	17.2	38.8	May 05	151	67
Sage Creek Basin	7850	0.0	0.0₍₁₉₎	14.8₍₁₉₎	Apr 03₍₁₉₎	*	0*
Sandstone RS	8152	0.0	0.0	14.2	Apr 05	*	0*
Whiskey Park	9020	0.0	0.0	30.8	Apr 17	*	0*
Basin Index (%)		151*
UPPER GREEN RIVER
Big Sandy Opening	9080	-M	0.0	14.2	Apr 17	*	*
Blind Bull Sum	8650	5.0	9.6	26.1	May 03	52	19
East Rim Divide	7930	-M	0.0	11.1	Apr 11	*	*
Elkhart Park G.S.	9400	-M	0.0	13.6	Apr 23	*	*
Gros Ventre Summit	8750	0.0	0.0	13.6	Apr 23	*	0*
Gunsight Pass	9820	0.2	0.2₍₂₂₎	13.8₍₂₂₎	Apr 29₍₂₂₎	100*	1*
Indian Creek	9425	3.3	2.2	24.9	Apr 21	150*	13*
Kendall R.S.	7740	0.0	0.0	12.2	Apr 01	*	0*
Larsen Creek	9000	-M	0.0₍₁₀₎	11.0₍₁₀₎	Apr 03₍₁₀₎	*	*
Loomis Park	8240	0.2	0.0	16.2	Apr 09	*	1*
New Fork Lake	8340	-M	0.0	10.9	Apr 08	*	*
Pocket Creek	9360	-M	N/A	N/A	N/A	*	*
Snider Basin	8060	-M	0.0	13.4	Apr 09	*	*
Spring Creek Divide	9000	10.1	5.4	26.0	Apr 27	187	39
Triple Peak	8500	-M	0.0	24.4	Apr 15	*	*
Basin Index (%)		108*
LOWER GREEN RIVER
Blacks Fork Jct	8869	0.4	0.0₍₁₀₎	9.4₍₁₀₎	Apr 05₍₁₀₎	*	4*
Buck Pasture	9632	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	7840	-M	0.0	11.5	Apr 01	*	*
Henrys Fork	10182	-M	N/A	N/A	N/A	*	*
Hewinta	9500	0.0	0.0	12.7	Apr 09	*	0*
Hickerson Park	9122	0.0	0.0	8.8	Apr 07	*	0*
Hole-in-Rock	9168	0.1	0.0	8.0	Apr 09	*	1*
Indian Creek	9425	3.3	2.2	24.9	Apr 21	150*	13*
Kelley R.S.	8180	-M	0.0	15.2	Apr 09	*	*
Spirit Lk	10235	0.0	0.0₍₁₁₎	14.1₍₁₁₎	Apr 11₍₁₁₎	*	0*
Steel Creek Park	10158	1.5	0.0	18.8	May 05	*	8*
Basin Index (%)		241*
UPPER BEAR RIVER
Bear River RS	8777	0.0	0.0₍₁₀₎	10.0₍₁₀₎	Apr 01₍₁₀₎	*	0*
Bug Lake	7987	0.0	0.0	19.0	Apr 14	*	0*
Burts Miller Ranch	8000	0.2	0.0₍₁₁₎	6.4₍₁₁₎	Mar 29₍₁₁₎	*	3*
Chalk Creek #1	9171	0.2	0.0	24.6	Apr 17	*	1*
Giveout	6930	0.0	0.0	8.8	Mar 20	*	0*
Hayden Fork	9130	0.0	0.0	15.9	Apr 06	*	0*
Kelley R.S.	8180	-M	0.0	15.2	Apr 09	*	*
Lily Lake	9133	0.3	0.0	13.6	Apr 15	*	2*
Monte Cristo	8932	8.4	0.0	29.6	Apr 17	*	28*
Salt River Summit	7640	-M	0.0	13.6	Apr 07	*	*
Spring Creek Divide	9000	10.1	5.4	26.0	Apr 27	187	39
Trial Lake	9992	7.4	0.1	24.2	Apr 25	7400*	31*
Basin Index (%)		484*

-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.

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