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 Tuesday, April 23, 2024
Basin   Site Name Elev (ft) Snow Water Equivalent Percent of Current (in) Today's Median (in) Median Peak (in) Median Peak Date Today's Median Median Peak SNAKE RIVER   Base Camp 7060 11.5    13.2    17.8    Apr 02 87    65      Blind Bull Sum 8650 24.4    25.0    26.1    May 03 98    93      Cottonwood Creek 7670 15.9    19.9    22.6    Apr 10 80    70      East Rim Divide 7930 1.0    9.3    11.1    Apr 11 11    9      Grand Targhee 9260 41.0    46.7(14) 48.8(14) May 01(14) 88    84      Granite Creek 6770 11.1    11.9    16.4    Apr 03 93    68      Grassy Lake 7265 26.2    31.2    34.2    Apr 15 84    77      Gros Ventre Summit 8750 10.8    13.1    13.6    Apr 23 82    79      Gunsight Pass 9820 12.4    13.2(22) 13.8(22) Apr 29(22) 94    90      Lewis Lake Divide 7850 29.7    32.4    33.4    Apr 20 92    89      Loomis Park 8240 8.5    13.0    16.2    Apr 09 65    52      Phillips Bench 8200 23.2    26.6    28.5    Apr 21 87    81      Salt River Summit 7640 10.8    11.0    13.6    Apr 07 98    79      Snake River Station 6920 11.3    14.1    18.0    Apr 03 80    63      Somsen Ranch 6800 10.3    6.0    12.8    Mar 28 172    80      Spring Creek Divide 9000 23.8    25.6    26.0    Apr 27 93    92      Thumb Divide 7980 15.4    16.7    17.7    Apr 13 92    87      Togwotee Pass 9580 19.8    24.9    26.6    May 03 80    74      Triple Peak 8500 19.0    20.6    24.4    Apr 15 92    78      Two Ocean Plateau 9240 29.5    32.7    34.9    May 03 90    85      Willow Creek 8080 29.7    28.2    31.4    Apr 14 105    95      Younts Peak 8350 12.2    15.2(28) 15.6(28) Apr 25(28) 80    78    Basin Index (%) 88    MADISON HEADWATERS IN WYOMING   Black Bear 8170 33.3    39.4    41.4    Apr 29 85    80      Canyon 7870 10.3    N/A    N/A    N/A    *   *     Madison Plateau 7750 20.3    23.4    24.7    Apr 24 87    82      West Yellowstone 6700 3.6    5.3    11.6    Apr 03 68    31      Whiskey Creek 6800 12.4    15.4    16.5    Apr 17 81    75    Basin Index (%) 83    YELLOWSTONE HEADWATERS IN WYOMING   Beartooth Lake 9360 16.7    23.8    25.2    May 07 70    66      Canyon 7870 10.3    N/A    N/A    N/A    *   *     Evening Star 9200 20.6    26.8    29.3    May 01 77    70      Fisher Creek 9100 23.3    35.6    37.0    May 05 65    63      Monument Peak 8850 14.8    22.4    23.4    Apr 27 66    63      Northeast Entrance 7350 0.8    6.0    10.2    Apr 04 13    8      Parker Peak 9400 21.2    24.2    25.9    May 04 88    82      Sylvan Lake 8420 14.2    20.2    22.0    Apr 23 70    65      Thumb Divide 7980 15.4    16.7    17.7    Apr 13 92    87      Two Ocean Plateau 9240 29.5    32.7    34.9    May 03 90    85      White Mill 8700 18.1    25.6    27.4    May 05 71    66      Wolverine 7650 3.0    7.0    11.8    Mar 30 43    25    Basin Index (%) 74    WIND RIVER   Burroughs Creek 8750 7.5    N/A    N/A    N/A    *   *     Castle Creek 8400 2.0    3.4(10) 7.9(10) Apr 03(10) 59    25      Cold Springs 9630 4.4    6.4    8.3    Apr 09 69    53      Deer Park 9700 16.5    15.8(22) 16.6(22) Apr 25(22) 104    99      Hobbs Park 10100 16.0    15.8    18.1    May 06 101    88      Kirwin 9550 13.2    11.6    13.2    May 01 114    100      Little Warm 9370 9.2    10.2    10.6    Apr 17 90    87      South Pass 9040 14.0    15.1    16.6    Apr 22 93    84      St. Lawrence Alt 8620 0.8    N/A    N/A    N/A    *   *     Togwotee Pass 9580 19.8    24.9    26.6    May 03 80    74      Townsend Creek 8700 8.7    9.8    10.6    Apr 19 89    82    Basin Index (%) 92    BIGHORN BASIN   Bald Mtn. 9380 14.8    20.2    22.6    May 07 73    65      Bear Trap Meadow 8200 4.9    3.4    7.4    Apr 07 144    66      Bone Springs Div 9350 14.5    17.8    19.2    May 05 81    76      Grave Springs 8550 7.0    8.2(28) 10.0(28) Apr 19(28) 85    70      Kirwin 9550 13.2    11.6    13.2    May 01 114    100      Marquette 8760 14.1    8.0    9.9    May 04 176    142      Middle Powder 7760 11.6    11.4    13.2    Apr 23 102    88      Owl Creek 8975 4.3    3.4    6.4    Apr 12 126    67      Powder River Pass 9480 5.6    10.5    12.2    Apr 19 53    46      Shell Creek 9580 14.3    16.6    18.2    May 05 86    79      Timber Creek 7950 6.3    4.8    6.0    Apr 17 131    105    Basin Index (%) 95    SHOSHONE RIVER   Blackwater 9780 23.3    25.5    26.8    May 09 91    87      Evening Star 9200 20.6    26.8    29.3    May 01 77    70      Marquette 8760 14.1    8.0    9.9    May 04 176    142      Sylvan Lake 8420 14.2    20.2    22.0    Apr 23 70    65      Sylvan Road 7120 0.0    8.4    12.3    Apr 07 0    0      Younts Peak 8350 12.2    15.2(28) 15.6(28) Apr 25(28) 80    78    Basin Index (%) 81    POWDER RIVER   Bear Trap Meadow 8200 4.9    3.4    7.4    Apr 07 144    66      Cloud Peak Reservoir 9860 12.8    15.8    18.0    May 05 81    71      Grave Springs 8550 7.0    8.2(28) 10.0(28) Apr 19(28) 85    70      Hansen Sawmill 8360 4.2    5.0    7.0    Apr 13 84    60      Middle Powder 7760 11.6    11.4    13.2    Apr 23 102    88      Powder River Pass 9480 5.6    10.5    12.2    Apr 19 53    46      Soldier Park 8720 2.3    6.2(10) 8.4(10) Apr 17(10) 37    27    Basin Index (%) 80    TONGUE RIVER   Big Goose 7990 6.9    8.4(22) 10.1(22) Apr 25(22) 82    68      Bone Springs Div 9350 14.5    17.8    19.2    May 05 81    76      Burgess Junction 7880 9.6    11.8    13.0    May 03 81    74      Dome Lake 8880 9.2    12.1    13.5    Apr 27 76    68      Little Goose 8870 9.2    10.4(10) 12.2(10) Apr 27(10) 88    75      Sucker Creek 8880 10.6    12.6    14.9    May 03 84    71      Tie Creek 6870 0.4    4.0(26) 6.6(26) Apr 05(26) 10    6    Basin Index (%) 78    BELLE FOURCHE   Blind Park 6890 0.0    3.6    8.1    Mar 30 0    0      Cole Canyon 5910 0.0    2.0(20) 6.3(20) Apr 03(20) 0    0      North Rapid Creek 6130 0.7    3.8(24) 7.4(24) Apr 02(24) 18    9    Basin Index (%) 7    CHEYENNE RIVER BASIN   Blind Park 6890 0.0    3.6    8.1    Mar 30 0    0      North Rapid Creek 6130 0.7    3.8(24) 7.4(24) Apr 02(24) 18    9    Basin Index (%) 9    UPPER N. PLATTE   Arapaho Ridge 10976 22.0    23.9(18) 25.2(18) May 01(18) 92    87      Blackhall Mtn 9839 33.4    32.9(11) 34.6(11) Apr 27(11) 102    97      Cinnabar Park 9707 18.9    19.4(17) 22.4(17) Apr 19(17) 97    84      Columbine 9167 19.4    20.8    24.6    Apr 05 93    79      Divide Peak 8730 16.8    18.0    21.4    Apr 15 93    79      Joe Wright 10158 21.1    22.4    24.0    May 05 94    88      Laprele Creek 8390 5.4    6.8    10.4    Apr 05 79    52      Med Bow 10512 41.6    N/A    N/A    N/A    *   *     Never Summer 10323 22.1    21.9(18) 23.8(18) May 11(18) 101    93      North French Creek 10153 28.0    31.6    34.2    Apr 30 89    82      Old Battle 9860 33.5    34.2    38.8    May 05 98    86      Rawah 9069 10.7    9.4(18) 12.2(18) Apr 07(18) 114    88      Sage Creek Basin 7850 6.4    5.4(19) 14.8(19) Apr 03(19) 119    43      Sand Lake 10098 32.2    30.6    33.1    May 05 105    97      South Brush Creek 8495 8.3    8.4    12.4    Apr 03 99    67      Tower 10620 43.1    45.3    49.0    May 07 95    88      Webber Springs 9260 20.6    21.6    23.9    Apr 15 95    86      Whiskey Park 9020 28.6    26.6    30.8    Apr 17 108    93      Willow Creek Pass 9523 15.4    14.9    16.4    May 03 103    94      Zirkel 9338 20.3    24.7(18) 28.5(18) Apr 07(18) 82    71    Basin Index (%) 97    SWEETWATER   Deer Park 9700 16.5    15.8(22) 16.6(22) Apr 25(22) 104    99      Larsen Creek 9000 4.0    7.2(10) 11.0(10) Apr 03(10) 56    36      South Pass 9040 14.0    15.1    16.6    Apr 22 93    84    Basin Index (%) 91    LOWER N. PLATTE   Casper Mtn. 7920 10.2    13.7    16.0    Apr 19 74    64      Laprele Creek 8390 5.4    6.8    10.4    Apr 05 79    52      Reno Hill 8430 9.7    13.6    16.3    Apr 21 71    60      Windy Peak 7915 7.3    7.3    8.4    Apr 08 100    87    Basin Index (%) 79    LARAMIE RIVER   Brooklyn Lake 10250 23.8    23.2    25.4    Apr 25 103    94      Cinnabar Park 9707 18.9    19.4(17) 22.4(17) Apr 19(17) 97    84      Crow Creek 8335 1.7    2.2(17) 7.4(17) Apr 01(17) 77    23      Deadman Hill 10239 20.9    18.6    21.8    May 04 112    96      Rawah 9069 10.7    9.4(18) 12.2(18) Apr 07(18) 114    88      Roach 9740 13.8    16.8    17.5    Apr 25 82    79      Windy Peak 7915 7.3    7.3    8.4    Apr 08 100    87    Basin Index (%) 100    S. PLATTE   Crow Creek 8335 1.7    2.2(17) 7.4(17) Apr 01(17) 77    23    Basin Index (%) 77    LITTLE SNAKE RIVER   Battle Mountain 7498 2.7    4.2    12.6    Mar 27 64    21      Divide Peak 8730 16.8    18.0    21.4    Apr 15 93    79      Elk River 8739 12.1    14.6    19.4    Apr 05 83    62      Elkhead Divide 8800 19.0    N/A    N/A    N/A    *   *     Little Snake River 8928 25.4    23.7(16) 29.0(16) Apr 09(16) 107    88      Old Battle 9860 33.5    34.2    38.8    May 05 98    86      Sage Creek Basin 7850 6.4    5.4(19) 14.8(19) Apr 03(19) 119    43      Sandstone RS 8152 9.8    9.6    14.2    Apr 05 102    69      Whiskey Park 9020 28.6    26.6    30.8    Apr 17 108    93    Basin Index (%) 99    UPPER GREEN RIVER   Big Sandy Opening 9080 11.6    12.8    14.2    Apr 17 91    82      Blind Bull Sum 8650 24.4    25.0    26.1    May 03 98    93      East Rim Divide 7930 1.0    9.3    11.1    Apr 11 11    9      Elkhart Park G.S. 9400 9.0    12.9    13.6    Apr 23 70    66      Gros Ventre Summit 8750 10.8    13.1    13.6    Apr 23 82    79      Gunsight Pass 9820 12.4    13.2(22) 13.8(22) Apr 29(22) 94    90      Indian Creek 9425 21.4    24.2    24.9    Apr 21 88    86      Kendall R.S. 7740 4.0    7.7    12.2    Apr 01 52    33      Larsen Creek 9000 4.0    7.2(10) 11.0(10) Apr 03(10) 56    36      Loomis Park 8240 8.5    13.0    16.2    Apr 09 65    52      New Fork Lake 8340 3.4    8.4    10.9    Apr 08 40    31      Pocket Creek 9360 -M    N/A    N/A    N/A    *   *     Snider Basin 8060 5.2    10.2    13.4    Apr 09 51    39      Spring Creek Divide 9000 23.8    25.6    26.0    Apr 27 93    92      Triple Peak 8500 19.0    20.6    24.4    Apr 15 92    78    Basin Index (%) 78    LOWER GREEN RIVER   Blacks Fork Jct 8869 6.2    6.4(10) 9.4(10) Apr 05(10) 97    66      Buck Pasture 9632 11.5    N/A    N/A    N/A    *   *     EF Blacks Fork GS 9360 7.0    10.0(10) 12.4(10) Apr 05(10) 70    56      Hams Fork 7840 -M    6.8    11.5    Apr 01 *   *     Henrys Fork 10182 -M    N/A    N/A    N/A    *   *     Hewinta 9500 6.5    7.3    12.7    Apr 09 89    51      Hickerson Park 9122 4.8    4.8    8.8    Apr 07 100    55      Hole-in-Rock 9168 4.2    5.6    8.0    Apr 09 75    52      Indian Creek 9425 21.4    24.2    24.9    Apr 21 88    86      Kelley R.S. 8180 12.8    13.8    15.2    Apr 09 93    84      Spirit Lk 10235 12.6    13.2(11) 14.1(11) Apr 11(11) 95    89      Steel Creek Park 10158 15.2    16.2    18.8    May 05 94    81    Basin Index (%) 89    UPPER BEAR RIVER   Bear River RS 8777 3.9    1.5(10) 10.0(10) Apr 01(10) 260    39      Bug Lake 7987 17.2    16.7    19.0    Apr 14 103    91      Burts Miller Ranch 8000 0.4    0.0(11) 6.4(11) Mar 29(11) *   6*     Chalk Creek #1 9171 22.2    22.2    24.6    Apr 17 100    90      Giveout 6930 1.8    1.9    8.8    Mar 20 95    20      Hayden Fork 9130 9.5    11.2    15.9    Apr 06 85    60      Kelley R.S. 8180 12.8    13.8    15.2    Apr 09 93    84      Lily Lake 9133 9.9    10.8    13.6    Apr 15 92    73      Monte Cristo 8932 27.6    25.8    29.6    Apr 17 107    93      Salt River Summit 7640 10.8    11.0    13.6    Apr 07 98    79      Spring Creek Divide 9000 23.8    25.6    26.0    Apr 27 93    92      Trial Lake 9992 27.7    22.0    24.2    Apr 25 126    114    Basin Index (%) 103

-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.