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 Thursday, April 25, 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 9.2    11.3    13.7    Apr 08 81    67      Cochetopa Pass 10061 0.0    0.0(16) 4.8(16) Mar 29(16) *   0*     Columbine Pass 9171 3.0    7.0    18.0    Mar 26 43    17      Idarado 9812 3.6    10.0    14.4    Apr 06 36    25      Mc Clure Pass 8774 4.3    11.4    16.6    Apr 04 38    26      Mesa Lakes 10168 9.3    16.4    19.0    Apr 15 57    49      Overland Res. 9893 2.4    8.0    12.4    Apr 05 30    19      Park Cone 9621 9.1    8.4    10.4    Apr 09 108    88      Park Reservoir 9987 16.9    25.7    27.4    Apr 26 66    62      Porphyry Creek 10788 15.4    14.8    17.0    Apr 15 104    91      Red Mountain Pass 11080 18.4    23.5    25.0    Apr 25 78    74      Sargents Mesa 11499 7.5    10.4(12) 11.4(12) Apr 13(12) 72    66      Schofield Pass 10653 26.3    32.0    35.1    Apr 19 82    75      Slumgullion 11560 6.9    13.2    15.0    Apr 21 52    46      Upper Taylor 10717 7.9    10.9(11) 13.6(11) Apr 03(11) 72    58      Wager Gulch 11132 5.1    N/A    N/A    N/A    *   *   Basin Index (%) 69    UPPER COLORADO RIVER BASIN   Arapaho Ridge 10976 21.5    23.8(18) 25.2(18) May 01(18) 90    85      Bear River 9112 10.3    11.6(16) 12.0(16) Apr 21(16) 89    86      Beaver Ck Village 8565 6.6    6.1(17) 11.7(17) Apr 02(17) 108    56      Berthoud Summit 11314 22.9    22.0    23.2    May 03 104    99      Bison Lake 10964 24.5    25.6    26.9    Apr 29 96    91      Buffalo Park 9249 13.1    12.8(25) 14.9(25) Apr 14(25) 102    88      Chapman Tunnel 10100 13.2    13.8(13) 15.4(13) Apr 19(13) 96    86      Columbine 9167 17.4    21.0    24.6    Apr 05 83    71      Copper Mountain 10523 15.1    16.8    17.4    Apr 26 90    87      Elliot Ridge 10549 22.6    21.8(11) 23.2(11) Apr 25(11) 104    97      Fool Creek 11156 22.1    N/A    N/A    N/A    *   *     Fremont Pass 11326 17.8    19.0    20.8    May 11 94    86      Grizzly Peak 11139 17.7    18.4    19.6    Apr 21 96    90      High Lonesome 10638 22.8    N/A    N/A    N/A    *   *     Hoosier Pass 11611 17.2    16.8    17.3    Apr 27 102    99      Independence Pass 10598 14.5    15.7    17.4    Apr 18 92    83      Ivanhoe 10541 19.6    16.3(29) 17.2(29) Apr 26(29) 120    114      Jones Pass 10426 14.8    16.3(21) 16.8(21) Apr 27(21) 91    88      Kiln 9624 8.2    10.0    13.2    Apr 07 82    62      Lake Irene 10682 21.9    23.6    25.4    Apr 26 93    86      Lynx Pass 8919 3.3    6.4    11.5    Apr 04 52    29      Mc Clure Pass 8774 4.3    11.4    16.6    Apr 04 38    26      Mccoy Park 9516 10.0    10.2(18) 14.6(18) Apr 07(18) 98    68      Mesa Lakes 10168 9.3    16.4    19.0    Apr 15 57    49      Middle Fork Camp 8969 6.7    8.4(19) 11.5(19) Apr 04(19) 80    58      Nast Lake 8731 0.0    0.4    8.8    Mar 28 0*   0*     North Lost Trail 9219 8.4    10.6    17.4    Apr 04 79    48      Overland Res. 9893 2.4    8.0    12.4    Apr 05 30    19      Park Reservoir 9987 16.9    25.7    27.4    Apr 26 66    62      Phantom Valley 9045 7.3    6.2    10.4    Mar 30 118    70      Schofield Pass 10653 26.3    32.0    35.1    Apr 19 82    75      Stillwater Creek 8880 0.0    N/A    N/A    N/A    *   *     Summit Ranch 9371 5.5    9.2    11.4    Apr 09 60    48      Vail Mountain 10310 18.1    19.8    20.8    Apr 27 91    87      Willow Creek Pass 9523 14.9    14.8    16.4    May 03 101    91    Basin Index (%) 88    SOUTH PLATTE RIVER BASIN   Bear Lake 9522 19.1    18.4    19.8    Apr 27 104    96      Berthoud Summit 11314 22.9    22.0    23.2    May 03 104    99      Black Mountain 8980 9.9    10.9(10) 12.5(10) Apr 17(10) 91    79      Buckskin Joe 11166 12.0    11.8(21) 12.6(21) May 02(21) 102    95      Copeland Lake 8555 0.1    0.0    6.0    Mar 08 *   2*     Deadman Hill 10239 21.1    19.2    21.8    May 04 110    97      Echo Lake 10694 9.0    8.4(22) 9.0(22) Apr 29(22) 107    100      Hoosier Pass 11611 17.2    16.8    17.3    Apr 27 102    99      Hourglass Lake 9417 6.1    11.5(12) 13.0(12) Apr 19(12) 53    47      Jackwhacker Gulch 11054 10.8    13.7(22) 14.4(22) Apr 25(22) 79    75      Joe Wright 10158 21.0    22.6    24.0    May 05 93    88      Lake Eldora 9728 7.8    9.8    14.0    Apr 09 80    56      Lake Irene 10682 21.9    23.6    25.4    Apr 26 93    86      Long Draw Resv 10008 15.1    16.7(11) 18.3(11) Apr 27(11) 90    83      Loveland Basin 11427 20.0    22.3(28) 24.4(28) May 02(28) 90    82      Michigan Creek 10702 11.7    12.1(22) 13.2(22) Apr 26(22) 97    89      Niwot 9979 12.6    12.4    15.0    Apr 19 102    84      Rough And Tumble 10432 5.0    7.8(22) 8.3(22) Apr 24(22) 64    60      Sawtooth 9676 24.9    N/A    N/A    N/A    *   *     University Camp 10360 17.8    18.2    19.9    May 07 98    89      Wild Basin 9439 19.2    18.2(15) 18.6(15) Apr 25(15) 105    103      Willow Park 10732 18.6    19.2    21.0    Apr 29 97    89    Basin Index (%) 95    LARAMIE AND NORTH PLATTE RIVER BASINS   Arapaho Ridge 10976 21.5    23.8(18) 25.2(18) May 01(18) 90    85      Blackhall Mtn 9839 33.6    32.8(11) 34.6(11) Apr 27(11) 102    97      Columbine 9167 17.4    21.0    24.6    Apr 05 83    71      Deadman Hill 10239 21.1    19.2    21.8    May 04 110    97      Joe Wright 10158 21.0    22.6    24.0    May 05 93    88      Never Summer 10323 21.6    22.0(18) 23.8(18) May 11(18) 98    91      Rawah 9069 10.0    9.0(18) 12.2(18) Apr 07(18) 111    82      Roach 9740 13.1    16.4    17.5    Apr 25 80    75      Tower 10620 42.5    46.7    49.0    May 07 91    87      Whiskey Park 9020 27.6    27.4    30.8    Apr 17 101    90      Willow Creek Pass 9523 14.9    14.8    16.4    May 03 101    91      Zirkel 9338 18.1    24.2(18) 28.5(18) Apr 07(18) 75    64    Basin Index (%) 94    YAMPA AND WHITE RIVER BASINS   Battle Mountain 7498 0.5    3.6    12.6    Mar 27 14    4      Bear River 9112 10.3    11.6(16) 12.0(16) Apr 21(16) 89    86      Bison Lake 10964 24.5    25.6    26.9    Apr 29 96    91      Buffalo Park 9249 13.1    12.8(25) 14.9(25) Apr 14(25) 102    88      Burro Mountain 9317 6.8    13.0    16.6    Apr 13 52    41      Columbine 9167 17.4    21.0    24.6    Apr 05 83    71      Crosho 8973 7.5    7.0    12.6    Apr 05 107    60      Divide Peak 8730 15.0    17.2    21.4    Apr 15 87    70      Dry Lake 8271 19.1    16.8    22.3    Apr 04 114    86      Elk River 8739 9.8    14.4    19.4    Apr 05 68    51      Elkhead Divide 8800 17.3    N/A    N/A    N/A    *   *     Little Snake River 8928 23.6    24.2(16) 29.0(16) Apr 09(16) 98    81      Lost Dog 9327 21.6    22.2(22) 24.5(22) Apr 10(22) 97    88      Lynx Pass 8919 3.3    6.4    11.5    Apr 04 52    29      Old Battle 9860 33.2    35.0    38.8    May 05 95    86      Rabbit Ears 9411 26.8    26.4    27.9    Apr 21 102    96      Ripple Creek 10350 27.0    27.4    29.3    Apr 25 99    92      Sage Creek Basin 7850 4.6    3.6(19) 14.8(19) Apr 03(19) 128    31      Sandstone RS 8152 7.8    8.9    14.2    Apr 05 88    55      Tower 10620 42.5    46.7    49.0    May 07 91    87      Trapper Lake 9759 6.9    N/A    N/A    N/A    *   *     Whiskey Park 9020 27.6    27.4    30.8    Apr 17 101    90    Basin Index (%) 92    ARKANSAS RIVER BASIN   Apishapa 10027 0.4    0.6    7.6    Mar 16 67*   5*     Brumley 10594 9.8    10.4    11.8    Apr 19 94    83      Fremont Pass 11326 17.8    19.0    20.8    May 11 94    86      Glen Cove 11391 7.8    5.2(16) 5.7(16) Apr 23(16) 150    137      Hayden Pass 10699 9.5    13.0(13) 16.3(13) Apr 18(13) 73    58      Medano Pass 9668 0.0    0.0(25) 7.4(25) Mar 09(25) *   0*     Porphyry Creek 10788 15.4    14.8    17.0    Apr 15 104    91      Saint Elmo 10450 6.1    8.9(13) 11.5(13) Apr 09(13) 69    53      South Colony 10868 11.6    19.1(29) 20.9(29) Apr 23(29) 61    56      Ute Creek 10734 1.5    10.4(20) 12.4(20) Apr 04(20) 14    12      Whiskey Ck 10290 1.4    7.4    11.1    Apr 01 19    13    Basin Index (%) 75    UPPER RIO GRANDE BASIN   Beartown 11600 18.4    20.5    23.2    Apr 17 90    79      Cochetopa Pass 10061 0.0    0.0(16) 4.8(16) Mar 29(16) *   0*     Culebra #2 10562 6.5    10.2    14.0    Apr 05 64    46      Cumbres Trestle 10035 18.9    21.8    26.2    Apr 06 87    72      Grayback 11626 0.2    N/A    N/A    N/A    *   *     Hayden Pass 10699 9.5    13.0(13) 16.3(13) Apr 18(13) 73    58      Lily Pond 11069 7.0    10.2    14.8    Apr 04 69    47      Medano Pass 9668 0.0    0.0(25) 7.4(25) Mar 09(25) *   0*     Middle Creek 11269 12.8    17.6    19.2    Apr 15 73    67      Moon Pass 11128 1.0    3.0(12) 6.8(12) Apr 08(12) 33    15      North Costilla 10598 0.1    1.1    7.0    Mar 20 9    1      San Antonio Sink 9143 0.0    N/A    N/A    N/A    *   *     Sargents Mesa 11499 7.5    10.4(12) 11.4(12) Apr 13(12) 72    66      Shuree 10092 0.0    0.0(10) 6.0(10) Mar 08(10) *   0*     Slumgullion 11560 6.9    13.2    15.0    Apr 21 52    46      Trinchera 10922 4.8    7.9    11.2    Apr 05 61    43      Upper Rio Grande 9379 0.0    0.0    6.6    Mar 18 *   0*     Ute Creek 10734 1.5    10.4(20) 12.4(20) Apr 04(20) 14    12      Wager Gulch 11132 5.1    N/A    N/A    N/A    *   *     Wolf Creek Summit 10957 21.6    33.3    35.5    Apr 29 65    61    Basin Index (%) 67    SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS   Beartown 11600 18.4    20.5    23.2    Apr 17 90    79      Black Mesa 11564 19.5    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 3.0    7.0    18.0    Mar 26 43    17      Columbus Basin 10781 20.5    23.2(26) 25.8(26) Apr 17(26) 88    79      El Diente Peak 10217 6.9    9.6    14.6    Apr 04 72    47      Lizard Head Pass 10193 9.1    12.6    15.2    Apr 05 72    60      Lone Cone 9755 0.8    6.9    15.2    Apr 01 12    5      Mancos 10044 3.5    6.4(26) 16.3(26) Mar 23(26) 55    21      Mineral Creek 10046 6.5    11.8    15.6    Apr 09 55    42      Molas Lake 10631 8.1    18.6    22.0    Apr 11 44    37      Red Mountain Pass 11080 18.4    23.5    25.0    Apr 25 78    74      Scotch Creek 9195 0.1    0.3    12.0    Mar 18 33*   1*     Sharkstooth 10747 9.9    16.6(16) 18.8(16) Apr 12(16) 60    53      Spud Mountain 10674 10.5    19.3    25.6    Apr 04 54    41      Stump Lakes 11248 14.7    16.8    18.8    Apr 22 88    78      Upper San Juan 10140 17.0    26.0    29.7    Apr 09 65    57      Vallecito 10782 8.2    10.3    14.8    Apr 05 80    55      Weminuche Creek 10749 6.9    7.6(10) 16.4(10) Mar 28(10) 91    42      Wolf Creek Summit 10957 21.6    33.3    35.5    Apr 29 65    61    Basin Index (%) 68

-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.