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 Friday, March 15, 2019
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 18.1    11.6    13.7    Apr 08 156    132      Cochetopa Pass 10061 8.5    4.1(16) 4.8(16) Mar 29(16) 207    177      Columbine Pass 9171 26.5    16.3    18.0    Mar 26 163    147      Idarado 9812 17.9    12.0    14.4    Apr 06 149    124      Mc Clure Pass 8774 22.0    14.8    16.6    Apr 04 149    133      Mesa Lakes 10168 22.3    14.0    19.0    Apr 15 159    117      Overland Res. 9893 17.5    10.5    12.4    Apr 05 167    141      Park Cone 9621 13.5    9.0    10.4    Apr 09 150    130      Park Reservoir 9987 33.6    21.7    27.4    Apr 26 155    123      Porphyry Creek 10788 21.3    13.6    17.0    Apr 15 157    125      Red Mountain Pass 11080 31.2    19.2    25.0    Apr 25 162    125      Sargents Mesa 11499 14.4    10.0(12) 11.4(12) Apr 13(12) 144    126      Schofield Pass 10653 41.7    26.2    35.1    Apr 19 159    119      Slumgullion 11560 20.0    11.9    15.0    Apr 21 168    133      Upper Taylor 10717 20.5    11.3(11) 13.6(11) Apr 03(11) 181    151      Wager Gulch 11132 16.5    N/A    N/A    N/A    *   *   Basin Index (%) 160    UPPER COLORADO RIVER BASIN   Arapaho Ridge 10976 24.4    18.6(18) 25.2(18) May 01(18) 131    97      Bear River 9112 11.6    9.4(16) 12.0(16) Apr 21(16) 123    97      Beaver Ck Village 8565 15.0    10.7(17) 11.7(17) Apr 02(17) 140    128      Berthoud Summit 11314 19.6    15.8    23.2    May 03 124    84      Bison Lake 10964 30.7    20.6    26.9    Apr 29 149    114      Buffalo Park 9249 15.4    12.8(25) 14.9(25) Apr 14(25) 120    103      Chapman Tunnel 10100 18.5    13.2(13) 15.4(13) Apr 19(13) 140    120      Columbine 9167 28.3    20.6    24.6    Apr 05 137    115      Copper Mountain 10523 18.3    12.4    17.4    Apr 26 148    105      Elliot Ridge 10549 21.9    15.2(11) 23.2(11) Apr 25(11) 144    94      Fool Creek 11156 21.0    N/A    N/A    N/A    *   *     Fremont Pass 11326 21.0    13.6    20.8    May 11 154    101      Grizzly Peak 11139 21.2    15.0    19.6    Apr 21 141    108      High Lonesome 10638 19.5    N/A    N/A    N/A    *   *     Hoosier Pass 11611 19.3    12.6    17.3    Apr 27 153    112      Independence Pass 10598 19.4    13.9    17.4    Apr 18 140    111      Ivanhoe 10541 22.7    12.4(29) 17.2(29) Apr 26(29) 183    132      Jones Pass 10426 17.7    13.0(21) 16.8(21) Apr 27(21) 136    105      Kiln 9624 16.6    10.9    13.2    Apr 07 152    126      Lake Irene 10682 23.7    21.7    25.4    Apr 26 109    93      Lynx Pass 8919 13.3    9.9    11.5    Apr 04 134    116      Mc Clure Pass 8774 22.0    14.8    16.6    Apr 04 149    133      Mccoy Park 9516 17.3    12.4(18) 14.6(18) Apr 07(18) 140    118      Mesa Lakes 10168 22.3    14.0    19.0    Apr 15 159    117      Middle Fork Camp 8969 12.6    10.5(19) 11.5(19) Apr 04(19) 120    110      Nast Lake 8731 14.1    7.5    8.8    Mar 28 188    160      North Lost Trail 9219 21.7    15.0    17.4    Apr 04 145    125      Overland Res. 9893 17.5    10.5    12.4    Apr 05 167    141      Park Reservoir 9987 33.6    21.7    27.4    Apr 26 155    123      Phantom Valley 9045 10.2    8.9    10.4    Mar 30 115    98      Schofield Pass 10653 41.7    26.2    35.1    Apr 19 159    119      Stillwater Creek 8880 9.4    N/A    N/A    N/A    *   *     Summit Ranch 9371 13.5    9.8    11.4    Apr 09 138    118      Vail Mountain 10310 20.5    16.2    20.8    Apr 27 127    99      Willow Creek Pass 9523 15.3    11.0    16.4    May 03 139    93    Basin Index (%) 142    SOUTH PLATTE RIVER BASIN   Bear Lake 9522 19.2    14.9    19.8    Apr 27 129    97      Berthoud Summit 11314 19.6    15.8    23.2    May 03 124    84      Black Mountain 8980 11.2    9.5(10) 12.5(10) Apr 17(10) 118    90      Buckskin Joe 11166 13.6    8.3(21) 12.6(21) May 02(21) 164    108      Copeland Lake 8555 8.9    4.1    6.0    Mar 08 217    148      Deadman Hill 10239 20.0    14.4    21.8    May 04 139    92      Echo Lake 10694 7.8    5.2(22) 9.0(22) Apr 29(22) 150    87      Hoosier Pass 11611 19.3    12.6    17.3    Apr 27 153    112      Hourglass Lake 9417 11.4    10.2(12) 13.0(12) Apr 19(12) 112    88      Jackwhacker Gulch 11054 16.4    10.0(22) 14.4(22) Apr 25(22) 164    114      Joe Wright 10158 20.8    18.0    24.0    May 05 116    87      Lake Eldora 9728 12.8    11.0    14.0    Apr 09 116    91      Lake Irene 10682 23.7    21.7    25.4    Apr 26 109    93      Long Draw Resv 10008 17.2    14.6(11) 18.3(11) Apr 27(11) 118    94      Loveland Basin 11427 20.5    15.8(28) 24.4(28) May 02(28) 130    84      Michigan Creek 10702 14.0    8.8(22) 13.2(22) Apr 26(22) 159    106      Niwot 9979 12.5    10.4    15.0    Apr 19 120    83      Rough And Tumble 10432 8.3    5.4(22) 8.3(22) Apr 24(22) 154    100      Sawtooth 9676 31.3    N/A    N/A    N/A    *   *     University Camp 10360 16.5    12.6    19.9    May 07 131    83      Wild Basin 9439 17.8    13.6(15) 18.6(15) Apr 25(15) 131    96      Willow Park 10732 18.6    14.2    21.0    Apr 29 131    89    Basin Index (%) 131    LARAMIE AND NORTH PLATTE RIVER BASINS   Arapaho Ridge 10976 24.4    18.6(18) 25.2(18) May 01(18) 131    97      Blackhall Mtn 9839 30.8    24.5(11) 34.6(11) Apr 27(11) 126    89      Columbine 9167 28.3    20.6    24.6    Apr 05 137    115      Deadman Hill 10239 20.0    14.4    21.8    May 04 139    92      Joe Wright 10158 20.8    18.0    24.0    May 05 116    87      Never Summer 10323 21.1    17.2(18) 23.8(18) May 11(18) 123    89      Rawah 9069 14.5    9.6(18) 12.2(18) Apr 07(18) 151    119      Roach 9740 17.2    13.4    17.5    Apr 25 128    98      Tower 10620 49.0    37.8    49.0    May 07 130    100      Whiskey Park 9020 29.6    24.2    30.8    Apr 17 122    96      Willow Creek Pass 9523 15.3    11.0    16.4    May 03 139    93      Zirkel 9338 32.4    25.1(18) 28.5(18) Apr 07(18) 129    114    Basin Index (%) 129    YAMPA AND WHITE RIVER BASINS   Battle Mountain 7498 13.4    10.7    12.6    Mar 27 125    106      Bear River 9112 11.6    9.4(16) 12.0(16) Apr 21(16) 123    97      Bison Lake 10964 30.7    20.6    26.9    Apr 29 149    114      Buffalo Park 9249 15.4    12.8(25) 14.9(25) Apr 14(25) 120    103      Burro Mountain 9317 17.3    13.2    16.6    Apr 13 131    104      Columbine 9167 28.3    20.6    24.6    Apr 05 137    115      Crosho 8973 14.8    10.6    12.6    Apr 05 140    117      Divide Peak 8730 20.2    17.0    21.4    Apr 15 119    94      Dry Lake 8271 25.1    18.6    22.3    Apr 04 135    113      Elk River 8739 20.1    16.4    19.4    Apr 05 123    104      Elkhead Divide 8800 22.0    N/A    N/A    N/A    *   *     Little Snake River 8928 28.2    23.6(16) 29.0(16) Apr 09(16) 119    97      Lost Dog 9327 24.1    21.3(22) 24.5(22) Apr 10(22) 113    98      Lynx Pass 8919 13.3    9.9    11.5    Apr 04 134    116      Old Battle 9860 34.6    26.0    38.8    May 05 133    89      Rabbit Ears 9411 25.2    22.3    27.9    Apr 21 113    90      Ripple Creek 10350 31.0    22.4    29.3    Apr 25 138    106      Sage Creek Basin 7850 17.5    12.5(19) 14.8(19) Apr 03(19) 140    118      Sandstone RS 8152 17.5    11.3    14.2    Apr 05 155    123      Tower 10620 49.0    37.8    49.0    May 07 130    100      Trapper Lake 9759 7.3    N/A    N/A    N/A    *   *     Whiskey Park 9020 29.6    24.2    30.8    Apr 17 122    96    Basin Index (%) 129    ARKANSAS RIVER BASIN   Apishapa 10027 12.7    5.2    7.6    Mar 16 244    167      Brumley 10594 14.7    8.8    11.8    Apr 19 167    125      Fremont Pass 11326 21.0    13.6    20.8    May 11 154    101      Glen Cove 11391 4.8    3.5(16) 5.7(16) Apr 23(16) 137    84      Hayden Pass 10699 19.2    13.4(13) 16.3(13) Apr 18(13) 143    118      Medano Pass 9668 10.3    5.7(25) 7.4(25) Mar 09(25) 181    139      Porphyry Creek 10788 21.3    13.6    17.0    Apr 15 157    125      Saint Elmo 10450 14.6    9.5(13) 11.5(13) Apr 09(13) 154    127      South Colony 10868 22.1    15.3(29) 20.9(29) Apr 23(29) 144    106      Ute Creek 10734 14.0    11.4(20) 12.4(20) Apr 04(20) 123    113      Whiskey Ck 10290 16.9    9.7    11.1    Apr 01 174    152    Basin Index (%) 156    UPPER RIO GRANDE BASIN   Beartown 11600 32.3    18.5    23.2    Apr 17 175    139      Cochetopa Pass 10061 8.5    4.1(16) 4.8(16) Mar 29(16) 207    177      Culebra #2 10562 16.7    11.8    14.0    Apr 05 142    119      Cumbres Trestle 10035 33.6    22.7    26.2    Apr 06 148    128      Grayback 11626 8.3    N/A    N/A    N/A    *   *     Hayden Pass 10699 19.2    13.4(13) 16.3(13) Apr 18(13) 143    118      Lily Pond 11069 20.4    12.0    14.8    Apr 04 170    138      Medano Pass 9668 10.3    5.7(25) 7.4(25) Mar 09(25) 181    139      Middle Creek 11269 24.6    15.8    19.2    Apr 15 156    128      Moon Pass 11128 11.1    5.6(12) 6.8(12) Apr 08(12) 198    163      North Costilla 10598 11.0    6.0    7.0    Mar 20 183    157      San Antonio Sink 9143 12.3    N/A    N/A    N/A    *   *     Sargents Mesa 11499 14.4    10.0(12) 11.4(12) Apr 13(12) 144    126      Shuree 10092 10.5    5.2(10) 6.0(10) Mar 08(10) 202    175      Slumgullion 11560 20.0    11.9    15.0    Apr 21 168    133      Trinchera 10922 14.0    9.4    11.2    Apr 05 149    125      Upper Rio Grande 9379 12.5    6.0    6.6    Mar 18 208    189      Ute Creek 10734 14.0    11.4(20) 12.4(20) Apr 04(20) 123    113      Wager Gulch 11132 16.5    N/A    N/A    N/A    *   *     Wolf Creek Summit 10957 44.1    25.4    35.5    Apr 29 174    124    Basin Index (%) 163    SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS   Beartown 11600 32.3    18.5    23.2    Apr 17 175    139      Black Mesa 11564 30.5    N/A    N/A    N/A    *   *     Cascade 8880 23.3    11.1    12.7    Mar 10 210    183      Cascade #2 9012 18.9    9.2    10.4    Mar 06 205    182      Columbine Pass 9171 26.5    16.3    18.0    Mar 26 163    147      Columbus Basin 10781 38.5    21.2(26) 25.8(26) Apr 17(26) 182    149      El Diente Peak 10217 23.2    11.7    14.6    Apr 04 198    159      Lizard Head Pass 10193 20.9    13.6    15.2    Apr 05 154    138      Lone Cone 9755 23.0    14.4    15.2    Apr 01 160    151      Mancos 10044 24.4    14.2(26) 16.3(26) Mar 23(26) 172    150      Mineral Creek 10046 21.9    12.6    15.6    Apr 09 174    140      Molas Lake 10631 25.8    16.9    22.0    Apr 11 153    117      Red Mountain Pass 11080 31.2    19.2    25.0    Apr 25 162    125      Scotch Creek 9195 19.1    11.0    12.0    Mar 18 174    159      Sharkstooth 10747 25.6    16.6(16) 18.8(16) Apr 12(16) 154    136      Spud Mountain 10674 36.4    21.4    25.6    Apr 04 170    142      Stump Lakes 11248 27.6    15.0    18.8    Apr 22 184    147      Upper San Juan 10140 39.1    26.2    29.7    Apr 09 149    132      Vallecito 10782 23.3    13.6    14.8    Apr 05 171    157      Weminuche Creek 10749 28.6    15.2(10) 16.4(10) Mar 28(10) 188    174      Wolf Creek Summit 10957 44.1    25.4    35.5    Apr 29 174    124    Basin Index (%) 171

-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.