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Water Resources Data System
Dept 3943
1000 E. University Ave.
Laramie, WY 82071

wrds@uwyo.edu
Ph (307) 766-6651
Fax (307) 766-3785

At 11:38p, 10/21/18
Temperature 45.7°F
Wind 0.0 mph


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United States           Natural Resources             Water and Climate Center
Department of           Conservation                          Portland, Oregon
Agriculture             Service                                               
 
          S N O W  -  P R E C I P I T A T I O N    U P D A T E
 
              Based on Mountain Data from NRCS SNOTEL Sites
                    As of SATURDAY: MAY 27 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    2.9      .0       *   43.3    25.2    172 
 Black Bear               8170   41.7    29.9    139    61.9    45.6    136 
 Blind Bull Sum           8650     -M    15.8       *   39.9    23.9    167 
 Cottonwood Creek         7670   12.9      .3   4300*   46.0    30.9    149 
 East Rim Divide          7930     .0      .0       *   23.7    14.7    161 
 Grand Targhee            9260   52.4    41.1    127    53.3    38.1    140 
 Granite Creek            6770     .1      .0       *   38.9    23.6    165 
 Grassy Lake              7265   18.9    10.3    183    62.9    42.9    147 
 Gros Ventre Summit       8750    9.8      .9   1089*   27.4    16.6    165 
 Gunsight Pass            9820   18.5     5.8    319    30.2    18.2    166 
 Lewis Lake Divide        7850   29.3    16.7    175    60.4    42.0    144 
 Phillips Bench           8200   26.4    13.6    194    51.7    33.6    154 
 Salt River Summit        7760     .1      .0       *   32.8    20.5    160 
 Snake River Station      6920     .0      .0       *   40.0    27.2    147 
 Spring Creek Divide      9000   33.7    15.1    223    46.5    28.7    162 
 Thumb Divide             7980     .1      .0       *   31.5    23.4    135 
 Togwotee Pass            9580   31.1    21.7    143    44.9    30.5    147 
 Two Ocean Plateau        9240     -M    27.4       *     -M    33.8       *
 Willow Creek             8380     -M     8.6       *   60.0    41.9    143 
 Younts Peak              8350     .0     8.3      0    34.1    20.3    168 
                                                -----                  -----
                Basin Index (%)                  170*                   151 
 

MADISON-GALLATIN

 Black Bear               8170   41.7    29.9    139    61.9    45.6    136 
 Canyon                   7870    3.4      .0       *   29.8    20.5    145 
 Madison Plateau          7750   14.6    10.7    136    41.5    32.4    128 
 West Yellowstone         6700     .0      .0       *   26.9    18.1    149 
 Whiskey Creek            6800     .0     1.1      0*   31.1    25.0    124 
                                                -----                  -----
                Basin Index (%)                  143*                   135 
 

YELLOWSTONE

 Beartooth Lake           9360   32.2    19.8    163    33.2    24.8    134 
 Burnt Mtn                5880     .0      .0       *   23.7    20.4    116 
 Canyon                   7870    3.4      .0       *   29.8    20.5    145 
 Cole Creek               7850   14.1    12.5    113    19.3    20.6     94 
 Evening Star             9200   33.7    20.9    161    51.1    34.4    149 
 Fisher Creek             9100   46.0    30.2    152    53.7    39.4    136 
 Northeast Entrance       7350     .0      .0       *   23.8    16.2    147 
 Parker Peak              9400   31.8    17.4    183    41.4    23.3    178 
 Sylvan Lake              8420   12.7    11.4    111    43.6    28.6    152 
 Thumb Divide             7980     .1      .0       *   31.5    23.4    135 
 Two Ocean Plateau        9240     -M    27.4       *     -M    33.8       *
 White Mill               8700   29.2    20.0    146    40.6    29.8    136 
 Wolverine                7650     -M      .0       *   24.7    16.1    153 
                                                -----                  -----
                Basin Index (%)                  154                    140 
 

WIND RIVER

 Burroughs Creek          8750    3.8      -M       *   29.7      -M       *
 Castle Creek             8400     .2      -M       *   19.4      -M       *
 Cold Springs             9630    4.1      .0       *   24.6    15.0    164 
 Deer Park                9700   32.0     7.0    457    47.8    26.8    178 
 Hobbs Park              10100   30.7     9.6    320    38.0    20.0    190 
 Kirwin                   9550   17.9     5.0    358    31.0    16.5    188 
 Little Warm              9370    9.1      .0       *   28.2    18.0    157 
 Owl Creek                8975     .0      .0       *   17.4    10.3    169 
 South Pass               9040   27.4     1.5   1827*   37.4    23.2    161 
 St. Lawrence Alt         8620     .2      .0       *   23.4    14.1    166 
 Togwotee Pass            9580   31.1    21.7    143    44.9    30.5    147 
 Townsend Creek           8700   11.4      .0       *   31.6    17.8    178 
                                                -----                  -----
                Basin Index (%)                  366*                   169 
 

BIGHORN BASIN

 Bald Mtn.                9380   20.2    16.3    124    23.3    23.0    101 
 Bear Trap Meadow         8200     .0      .0       *   17.0    13.5    126 
 Bone Springs Div         9350   16.3    11.8    138    23.4    21.8    107 
 Grave Springs            8550    1.9      .0       *   15.4    15.9     97 
 Kirwin                   9550   17.9     5.0    358    31.0    16.5    188 
 Marquette                8760   14.5      -M       *   26.6      -M       *
 Middle Powder            7760     .0      .0       *   15.5    17.0     91 
 Owl Creek                8975     .0      .0       *   17.4    10.3    169 
 Powder River Pass        9480     .9      .2    450*   19.2    18.2    105 
 Shell Creek              9580   13.1    12.6    104    19.7    19.4    102 
 Timber Creek             7950     .6      .0       *   19.1    13.0    147 
                                                -----                  -----
                Basin Index (%)                  154*                   119 
 

SHOSHONE RIVER

 Blackwater               9780   36.5    22.7    161    48.3    26.9    180 
 Evening Star             9200   33.7    20.9    161    51.1    34.4    149 
 Marquette                8760   14.5      -M       *   26.6      -M       *
 Sylvan Road              7120     .0      .0       *   33.5    20.9    160 
 Younts Peak              8350     .0     8.3      0    34.1    20.3    168 
                                                -----                  -----
                Basin Index (%)                  135                    163 
 

POWDER RIVER

 Bear Trap Meadow         8200     .0      .0       *   17.0    13.5    126 
 Cloud Peak Reservoir     9860   17.2    10.3    167    28.7    20.7    139 
 Grave Springs            8550    1.9      .0       *   15.4    15.9     97 
 Hansen Sawmill           8360    3.6      .0       *   18.9    13.8    137 
 Middle Powder            7760     .0      .0       *   15.5    17.0     91 
 Powder River Pass        9480     .9      .2    450*   19.2    18.2    105 
 Soldier Park             8720    5.2      -M       *   22.7      -M       *
                                                -----                  -----
                Basin Index (%)                  225*                   116 
 

TONGUE RIVER

 Big Goose                7990    6.3      .0       *   21.6    18.0    120 
 Bone Springs Div         9350   16.3    11.8    138    23.4    21.8    107 
 Burgess Junction         7880    4.2     3.0    140    17.7    17.7    100 
 Dome Lake                8880   12.6      .8   1575*   25.1    19.9    126 
 Little Goose             8870   10.1      -M       *   26.1      -M       *
 Sucker Creek             8880    9.4     4.0    235    21.1    21.1    100 
 Tie Creek                6870     .1      .0       *   24.8    18.3    136 
                                                -----                  -----
                Basin Index (%)                  249*                   114 
 

BELLE FOURCHE

 Cole Canyon              5910     .0      .0       *   14.3    16.0     89 
                                                -----                  -----
                Basin Index (%)                     *                    89 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0      .0       *   14.8    17.8     83 
 North Rapid Creek        6130     .0      .0       *   13.1    15.5     85 
                                                -----                  -----
                Basin Index (%)                     *                    84 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   20.6    12.0    172    33.1    28.9    115 
 Blackhall Mtn            9820   28.5      -M       *   44.9      -M       *
 Columbine                9160     .0      .0       *   35.1    31.1    113 
 Divide Peak              8880     .0      .1      0*   28.1    27.0    104 
 Joe Wright              10120   14.5    17.1     85    37.4    33.7    111 
 Laprele Creek            8375     .2      .0       *   17.8    17.6    101 
 Med Bow                 10500   36.1      -M       *   44.0      -M       *
 North French Creek      10130   22.1    24.7     89    36.7    34.6    106 
 Never Summer            10280   21.8    17.3    126    25.7      -M       *
 Old Battle              10000   37.3    28.2    132    45.9    43.1    106 
 Rawah                    9020     .3      .0       *   22.6    19.3    117 
 Sage Creek Basin         7850     -M      .0       *   19.6    17.7    111 
 Sand Lake               10050   31.1    23.6    132    35.1    32.6    108 
 South Brush Creek        8440     .0      .0       *   16.9    20.7     82 
 Tower                   10500   39.7    42.6     93    55.4    48.7    114 
 Webber Springs           9250    9.3     4.0    232    40.3    32.6    124 
 Willow Creek Pass        9540   10.4     3.9    267    23.3    18.0    129 
 Zirkel                   9340    6.2      .0       *   50.6    33.8    150 
                                                -----                  -----
                Basin Index (%)                  123                    113 
 

SWEETWATER

 Deer Park                9700   32.0     7.0    457    47.8    26.8    178 
 Larsen Creek             9000     .2     1.5     13    28.3      -M       *
 South Pass               9040   27.4     1.5   1827*   37.4    23.2    161 
                                                -----                  -----
                Basin Index (%)                  596                    170 
 

LOWER N. PLATTE

 Casper Mtn.              7900     .2      .3     67*   21.9    21.2    103 
 Laprele Creek            8375     .2      .0       *   17.8    17.6    101 
 Reno Hill                8400     .3      .0       *   22.0    22.2     99 
 Windy Peak               7900     .0      .0       *   18.4    15.6    118 
                                                -----                  -----
                Basin Index (%)                  233*                   105 
 

LARAMIE RIVER

 Brooklyn Lake           10240   11.4    10.0    114    29.4    27.9    105 
 Cinnabar Park            9574    4.7     5.5     85    29.4    30.0     98 
 Crow Creek               8330     .0      .0       *   16.0    15.8    101 
 Deadman Hill            10220   16.4    11.8    139    29.4    23.6    125 
 Rawah                    9020     .3      .0       *   22.6    19.3    117 
 Roach                    9700    7.2     5.6    129    28.8    25.3    114 
                                                -----                  -----
                Basin Index (%)                  122                    110 
 

S. PLATTE

 Black Mountain           8920     .1      -M       *   21.0      -M       *
 Crow Creek               8330     .0      .0       *   16.0    15.8    101 
 Deadman Hill            10220   16.4    11.8    139    29.4    23.6    125 
                                                -----                  -----
                Basin Index (%)                  139*                   115 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0      .0       *   20.9    19.0    110 
 Divide Peak              8880     .0      .1      0*   28.1    27.0    104 
 Elk River                8700     .3      .0       *   25.1    25.1    100 
 Little Snake River       8915    8.9     5.9    151    45.7    35.8    128 
 Old Battle              10000   37.3    28.2    132    45.9    43.1    106 
 Sage Creek Basin         7850     -M      .0       *   19.6    17.7    111 
 Sandstone RS             8150     .0      .0       *   19.5    23.0     85 
 Whiskey Park             8950   12.0    13.0     92    37.7    34.4    110 
                                                -----                  -----
                Basin Index (%)                  124*                   108 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    9.1      .0       *   27.6    17.5    158 
 Blind Bull Sum           8650     -M    15.8       *   39.9    23.9    167 
 East Rim Divide          7930     .0      .0       *   23.7    14.7    161 
 Elkhart Park G.S.        9400    8.9     2.1    424    27.8    17.4    160 
 Gros Ventre Summit       8750    9.8      .9   1089*   27.4    16.6    165 
 Gunsight Pass            9820   18.5     5.8    319    30.2    18.2    166 
 Kendall R.S.             7740     .0      .0       *   31.9    17.3    184 
 Loomis Park              8240    9.1      .0       *   35.5    21.1    168 
 New Fork Lake            8340     -M      .0       *   22.1    14.1    157 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060     -M      .0       *   30.0    17.2    174 
 Spring Creek Divide      9000   33.7    15.1    223    46.5    28.7    162 
 Triple Peak              8500   18.3     1.7   1076*   46.2    31.0    149 
                                                -----                  -----
                Basin Index (%)                  420*                   164 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869     .0      -M       *   19.8      -M       *
 Buck Pasture             9632     .4      -M       *   28.9      -M       *
 EF Blacks Fork GS        9360     -M      -M       *   24.1      -M       *
 Hams Fork                7840     .0      .0       *   24.9    14.9    167 
 Hewinta                  9500     .0      .0       *   22.3    18.2    123 
 Hickerson Park           9122     .0      .0       *   16.3    14.1    116 
 Hole-in-Rock             9168     .0      .0       *   17.2    13.6    126 
 Indian Creek             9425   31.4    13.6    231    46.9    27.7    169 
 Kelley R.S.              8180    1.1      .0       *   35.6    22.4    159 
 Spirit Lk               10235     .9      -M       *   22.6      -M       *
 Steel Creek Park        10158   14.1    11.2    126    26.8    21.6    124 
                                                -----                  -----
                Basin Index (%)                  188*                   143 
 

UPPER BEAR RIVER

 Bear River RS            8777     .0      -M       *   22.3      -M       *
 Bug Lake                 7987   13.0      .0       *   39.3    24.1    163 
 Burts Miller Ranch       8000     .0      -M       *   12.3      -M       *
 Chalk Creek #1           9171   18.3     9.5    193    42.6    31.6    135 
 Hayden Fork              9130     .2      .0       *   33.3    26.4    126 
 Kelley R.S.              8180    1.1      .0       *   35.6    22.4    159 
 Lily Lake                9133     .0      .0       *   24.1    22.0    110 
 Monte Cristo             8932   22.2     7.9    281    46.5    32.4    144 
 Salt River Summit        7760     .1      .0       *   32.8    20.5    160 
                                                -----                  -----
                Basin Index (%)                  316*                   142 

-----------------------------------------------------------------------------


 -M   = Missing data
  *   = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and 
	Total Precipitation values
 
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.

The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.

The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.

Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1981-2010.

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 for the day is less than 10% of the maximum 
median value for  the year.
   	 
* Basin - More than half of the sites within the basin are flagged with *, 
preventing the calculation of a meaningful basin index. 

The basin index is calculated as the sum of the valid current values 
divided by the sum of the corresponding medians (for snow water equivalent) 
or averages (for precipitation) and the resulting fraction multiplied by 100.