Colorado 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 Wednesday, May 08, 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 GUNNISON RIVER BASIN   Butte 10200 7.4    6.8    13.7    Apr 08 109    54      Cochetopa Pass 10061 -M    0.0(16) 4.8(16) Mar 29(16) *   *     Columbine Pass 9171 0.3    0.0    18.0    Mar 26 *   2*     Idarado 9812 -M    5.2    14.4    Apr 06 *   *     Mc Clure Pass 8774 0.4    4.2    16.6    Apr 04 10    2      Mesa Lakes 10168 8.6    13.3    19.0    Apr 15 65    45      Overland Res. 9893 0.9    3.8    12.4    Apr 05 24    7      Park Cone 9621 6.0    2.4    10.4    Apr 09 250    58      Park Reservoir 9987 17.3    24.4    27.4    Apr 26 71    63      Porphyry Creek 10788 14.4    11.6    17.0    Apr 15 124    85      Red Mountain Pass 11080 19.0    21.6    25.0    Apr 25 88    76      Sargents Mesa 11499 6.3    8.2(12) 11.4(12) Apr 13(12) 77    55      Schofield Pass 10653 25.5    30.4    35.1    Apr 19 84    73      Slumgullion 11560 1.9    11.5    15.0    Apr 21 17    13      Upper Taylor 10717 6.6    6.9(11) 13.6(11) Apr 03(11) 96    49      Wager Gulch 11132 0.5    N/A    N/A    N/A    *   *   Basin Index (%) 79    UPPER COLORADO RIVER BASIN   Arapaho Ridge 10976 23.6    22.1(18) 25.2(18) May 01(18) 107    94      Bear River 9112 8.4    9.8(16) 12.0(16) Apr 21(16) 86    70      Beaver Ck Village 8565 3.7    1.9(17) 11.7(17) Apr 02(17) 195    32      Berthoud Summit 11314 23.5    21.4    23.2    May 03 110    101      Bison Lake 10964 25.7    25.8    26.9    Apr 29 100    96      Buffalo Park 9249 12.5    11.4(25) 14.9(25) Apr 14(25) 110    84      Chapman Tunnel 10100 13.1    8.8(13) 15.4(13) Apr 19(13) 149    85      Columbine 9167 14.8    14.0    24.6    Apr 05 106    60      Copper Mountain 10523 15.6    13.8    17.4    Apr 26 113    90      Elliot Ridge 10549 24.6    20.2(11) 23.2(11) Apr 25(11) 122    106      Fool Creek 11156 24.0    N/A    N/A    N/A    *   *     Fremont Pass 11326 20.3    19.6    20.8    May 11 104    98      Grizzly Peak 11139 18.2    15.4    19.6    Apr 21 118    93      High Lonesome 10638 24.4    N/A    N/A    N/A    *   *     Hoosier Pass 11611 18.4    15.9    17.3    Apr 27 116    106      Independence Pass 10598 12.4    13.6    17.4    Apr 18 91    71      Ivanhoe 10541 20.9    14.0(29) 17.2(29) Apr 26(29) 149    122      Jones Pass 10426 14.0    15.5(21) 16.8(21) Apr 27(21) 90    83      Kiln 9624 5.4    3.7    13.2    Apr 07 146    41      Lake Irene 10682 23.8    22.4    25.4    Apr 26 106    94      Lynx Pass 8919 0.5    0.0    11.5    Apr 04 *   4*     Mc Clure Pass 8774 0.4    4.2    16.6    Apr 04 10    2      Mccoy Park 9516 7.4    5.2(18) 14.6(18) Apr 07(18) 142    51      Mesa Lakes 10168 8.6    13.3    19.0    Apr 15 65    45      Middle Fork Camp 8969 3.5    3.6(19) 11.5(19) Apr 04(19) 97    30      Nast Lake 8731 0.6    0.0    8.8    Mar 28 *   7*     North Lost Trail 9219 4.7    6.2    17.4    Apr 04 76    27      Overland Res. 9893 0.9    3.8    12.4    Apr 05 24    7      Park Reservoir 9987 17.3    24.4    27.4    Apr 26 71    63      Phantom Valley 9045 7.0    2.0    10.4    Mar 30 350    67      Schofield Pass 10653 25.5    30.4    35.1    Apr 19 84    73      Stillwater Creek 8880 0.4    N/A    N/A    N/A    *   *     Summit Ranch 9371 1.2    2.8    11.4    Apr 09 43    11      Vail Mountain 10310 17.8    18.2    20.8    Apr 27 98    86      Willow Creek Pass 9523 16.1    14.7    16.4    May 03 110    98    Basin Index (%) 103    SOUTH PLATTE RIVER BASIN   Bear Lake 9522 21.5    17.2    19.8    Apr 27 125    109      Berthoud Summit 11314 23.5    21.4    23.2    May 03 110    101      Black Mountain 8980 8.6    5.5(10) 12.5(10) Apr 17(10) 156    69      Buckskin Joe 11166 13.5    11.5(21) 12.6(21) May 02(21) 117    107      Copeland Lake 8555 0.5    0.0    6.0    Mar 08 *   8*     Deadman Hill 10239 23.2    19.4    21.8    May 04 120    106      Echo Lake 10694 9.2    7.4(22) 9.0(22) Apr 29(22) 124    102      Hoosier Pass 11611 18.4    15.9    17.3    Apr 27 116    106      Hourglass Lake 9417 4.2    9.2(12) 13.0(12) Apr 19(12) 46    32      Jackwhacker Gulch 11054 10.0    11.6(22) 14.4(22) Apr 25(22) 86    69      Joe Wright 10158 23.4    22.2    24.0    May 05 105    98      Lake Eldora 9728 5.3    5.4    14.0    Apr 09 98    38      Lake Irene 10682 23.8    22.4    25.4    Apr 26 106    94      Long Draw Resv 10008 15.2    16.4(11) 18.3(11) Apr 27(11) 93    83      Loveland Basin 11427 22.6    22.4(28) 24.4(28) May 02(28) 101    93      Michigan Creek 10702 11.4    11.2(22) 13.2(22) Apr 26(22) 102    86      Niwot 9979 13.4    11.7    15.0    Apr 19 115    89      Rough And Tumble 10432 4.3    5.6(22) 8.3(22) Apr 24(22) 77    52      Sawtooth 9676 28.6    N/A    N/A    N/A    *   *     University Camp 10360 20.7    18.6    19.9    May 07 111    104      Wild Basin 9439 21.5    15.0(15) 18.6(15) Apr 25(15) 143    116      Willow Park 10732 21.4    17.8    21.0    Apr 29 120    102    Basin Index (%) 110    LARAMIE AND NORTH PLATTE RIVER BASINS   Arapaho Ridge 10976 23.6    22.1(18) 25.2(18) May 01(18) 107    94      Blackhall Mtn 9839 37.8    32.8(11) 34.6(11) Apr 27(11) 115    109      Columbine 9167 14.8    14.0    24.6    Apr 05 106    60      Deadman Hill 10239 23.2    19.4    21.8    May 04 120    106      Joe Wright 10158 23.4    22.2    24.0    May 05 105    98      Never Summer 10323 25.1    22.2(18) 23.8(18) May 11(18) 113    105      Rawah 9069 9.9    4.2(18) 12.2(18) Apr 07(18) 236    81      Roach 9740 13.5    15.7    17.5    Apr 25 86    77      Tower 10620 47.3    47.2    49.0    May 07 100    97      Whiskey Park 9020 28.9    27.4    30.8    Apr 17 105    94      Willow Creek Pass 9523 16.1    14.7    16.4    May 03 110    98      Zirkel 9338 17.6    20.4(18) 28.5(18) Apr 07(18) 86    62    Basin Index (%) 107    YAMPA AND WHITE RIVER BASINS   Battle Mountain 7498 0.6    0.0    12.6    Mar 27 *   5*     Bear River 9112 8.4    9.8(16) 12.0(16) Apr 21(16) 86    70      Bison Lake 10964 25.7    25.8    26.9    Apr 29 100    96      Buffalo Park 9249 12.5    11.4(25) 14.9(25) Apr 14(25) 110    84      Burro Mountain 9317 3.4    8.8    16.6    Apr 13 39    20      Columbine 9167 14.8    14.0    24.6    Apr 05 106    60      Crosho 8973 4.0    0.6    12.6    Apr 05 667*   32*     Divide Peak 8730 16.6    13.2    21.4    Apr 15 126    78      Dry Lake 8271 17.3    10.2    22.3    Apr 04 170    78      Elk River 8739 7.6    8.5    19.4    Apr 05 89    39      Elkhead Divide 8800 16.2    N/A    N/A    N/A    *   *     Little Snake River 8928 25.2    20.6(16) 29.0(16) Apr 09(16) 122    87      Lost Dog 9327 21.8    19.0(22) 24.5(22) Apr 10(22) 115    89      Lynx Pass 8919 0.5    0.0    11.5    Apr 04 *   4*     Old Battle 9860 36.3    35.4    38.8    May 05 103    94      Rabbit Ears 9411 26.1    21.2    27.9    Apr 21 123    94      Ripple Creek 10350 27.7    26.2    29.3    Apr 25 106    95      Sage Creek Basin 7850 1.0    0.0(19) 14.8(19) Apr 03(19) *   7*     Sandstone RS 8152 6.6    3.2    14.2    Apr 05 206    46      Tower 10620 47.3    47.2    49.0    May 07 100    97      Trapper Lake 9759 4.0    N/A    N/A    N/A    *   *     Whiskey Park 9020 28.9    27.4    30.8    Apr 17 105    94    Basin Index (%) 110    ARKANSAS RIVER BASIN   Apishapa 10027 0.1    0.0    7.6    Mar 16 *   1*     Brumley 10594 7.5    7.6    11.8    Apr 19 99    64      Fremont Pass 11326 20.3    19.6    20.8    May 11 104    98      Glen Cove 11391 5.8    3.4(16) 5.7(16) Apr 23(16) 171    102      Hayden Pass 10699 6.5    13.6(13) 16.3(13) Apr 18(13) 48    40      Medano Pass 9668 0.0    0.0(25) 7.4(25) Mar 09(25) *   0*     Porphyry Creek 10788 14.4    11.6    17.0    Apr 15 124    85      Saint Elmo 10450 2.2    3.6(13) 11.5(13) Apr 09(13) 61    19      South Colony 10868 8.1    17.1(29) 20.9(29) Apr 23(29) 47    39      Ute Creek 10734 -M    7.0(20) 12.4(20) Apr 04(20) *   *     Whiskey Ck 10290 0.0    1.0    11.1    Apr 01 0*   0*   Basin Index (%) 84    UPPER RIO GRANDE BASIN   Beartown 11600 13.0    12.8    23.2    Apr 17 102    56      Cochetopa Pass 10061 -M    0.0(16) 4.8(16) Mar 29(16) *   *     Culebra #2 10562 0.3    4.1    14.0    Apr 05 7    2      Cumbres Trestle 10035 9.2    17.6    26.2    Apr 06 52    35      Grayback 11626 0.0    N/A    N/A    N/A    *   *     Hayden Pass 10699 6.5    13.6(13) 16.3(13) Apr 18(13) 48    40      Lily Pond 11069 0.1    6.2    14.8    Apr 04 2    1      Medano Pass 9668 0.0    0.0(25) 7.4(25) Mar 09(25) *   0*     Middle Creek 11269 9.0    15.6    19.2    Apr 15 58    47      Moon Pass 11128 0.0    0.0(12) 6.8(12) Apr 08(12) *   0*     North Costilla 10598 0.1    0.0    7.0    Mar 20 *   1*     San Antonio Sink 9143 0.0    N/A    N/A    N/A    *   *     Sargents Mesa 11499 6.3    8.2(12) 11.4(12) Apr 13(12) 77    55      Shuree 10092 0.0    0.0(10) 6.0(10) Mar 08(10) *   0*     Slumgullion 11560 1.9    11.5    15.0    Apr 21 17    13      Trinchera 10922 0.1    1.0    11.2    Apr 05 10*   1*     Upper Rio Grande 9379 0.0    0.0    6.6    Mar 18 *   0*     Ute Creek 10734 -M    7.0(20) 12.4(20) Apr 04(20) *   *     Wager Gulch 11132 0.5    N/A    N/A    N/A    *   *     Wolf Creek Summit 10957 16.9    33.6    35.5    Apr 29 50    48    Basin Index (%) 51    SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS   Beartown 11600 13.0    12.8    23.2    Apr 17 102    56      Black Mesa 11564 20.5    N/A    N/A    N/A    *   *     Cascade 8880 -M    0.0    12.7    Mar 10 *   *     Cascade #2 9012 0.0    0.0    10.4    Mar 06 *   0*     Columbine Pass 9171 0.3    0.0    18.0    Mar 26 *   2*     Columbus Basin 10781 19.1    19.9(26) 25.8(26) Apr 17(26) 96    74      El Diente Peak 10217 3.9    3.0    14.6    Apr 04 130    27      Lizard Head Pass 10193 5.3    6.9    15.2    Apr 05 77    35      Lone Cone 9755 -M    0.0    15.2    Apr 01 *   *     Mancos 10044 -M    0.0(26) 16.3(26) Mar 23(26) *   *     Mineral Creek 10046 2.3    6.9    15.6    Apr 09 33    15      Molas Lake 10631 3.0    10.3    22.0    Apr 11 29    14      Red Mountain Pass 11080 19.0    21.6    25.0    Apr 25 88    76      Scotch Creek 9195 0.1    0.0    12.0    Mar 18 *   1*     Sharkstooth 10747 7.1    12.1(16) 18.8(16) Apr 12(16) 59    38      Spud Mountain 10674 8.2    13.0    25.6    Apr 04 63    32      Stump Lakes 11248 12.4    15.6    18.8    Apr 22 79    66      Upper San Juan 10140 -M    21.4    29.7    Apr 09 *   *     Vallecito 10782 3.6    5.2    14.8    Apr 05 69    24      Weminuche Creek 10749 0.1    1.8(10) 16.4(10) Mar 28(10) 6    1      Wolf Creek Summit 10957 16.9    33.6    35.5    Apr 29 50    48    Basin Index (%) 70

-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.