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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 7:48a, 5/26/18
Temperature 63.3°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 MONDAY: MAY 29 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030     .6      .0       *   43.3    25.4    170 
 Black Bear               8170   40.4    28.0    144    61.9    45.9    135 
 Blind Bull Sum           8650   47.4    14.2    334    40.0    24.1    166 
 Cottonwood Creek         7670   10.5      .0       *   46.0    31.1    148 
 East Rim Divide          7930     .1      .0       *   23.7    14.8    160 
 Grand Targhee            9260   52.2    40.8    128    53.5    38.2    140 
 Granite Creek            6770     .0      .0       *   39.5    23.8    166 
 Grassy Lake              7265   17.6     8.3    212    62.9    43.3    145 
 Gros Ventre Summit       8750    8.8      .0       *   27.4    16.8    163 
 Gunsight Pass            9820   18.0     4.6    391    30.1    18.4    164 
 Lewis Lake Divide        7850   27.2    14.6    186    60.3    42.3    143 
 Phillips Bench           8200   25.6    12.1    212    51.7    33.9    153 
 Salt River Summit        7760     .0      .0       *   32.9    20.6    160 
 Snake River Station      6920     .0      .0       *   40.0    27.5    145 
 Spring Creek Divide      9000   32.4    13.6    238    46.5    28.9    161 
 Thumb Divide             7980     .3      .0       *   31.5    23.6    133 
 Togwotee Pass            9580   30.2    20.6    147    44.9    30.7    146 
 Two Ocean Plateau        9240     -M    26.5       *     -M    34.1       *
 Willow Creek             8380     -M     6.4       *   60.0    42.2    142 
 Younts Peak              8350     .0     6.3      0    34.8    20.4    171 
                                                -----                  -----
                Basin Index (%)                  191                    151 
 

MADISON-GALLATIN

 Black Bear               8170   40.4    28.0    144    61.9    45.9    135 
 Canyon                   7870    1.4      .0       *   30.0    20.7    145 
 Madison Plateau          7750   13.2     9.0    147    41.6    32.8    127 
 West Yellowstone         6700     .0      .0       *   26.8    18.3    146 
 Whiskey Creek            6800     -M      .0       *   31.7    25.3    125 
                                                -----                  -----
                Basin Index (%)                  149*                   134 
 

YELLOWSTONE

 Beartooth Lake           9360   31.4    18.9    166    33.3    25.0    133 
 Burnt Mtn                5880     .0      .0       *   23.7    20.5    116 
 Canyon                   7870    1.4      .0       *   30.0    20.7    145 
 Cole Creek               7850   13.2    11.4    116    19.6    21.0     93 
 Evening Star             9200   33.2    19.8    168    51.2    34.6    148 
 Fisher Creek             9100   43.4    29.2    149    53.7    39.7    135 
 Northeast Entrance       7350     .0      .0       *   23.8    16.4    145 
 Parker Peak              9400   30.9    15.9    194    41.5    23.5    177 
 Sylvan Lake              8420   11.8     9.6    123    43.7    29.0    151 
 Thumb Divide             7980     .3      .0       *   31.5    23.6    133 
 Two Ocean Plateau        9240     -M    26.5       *     -M    34.1       *
 White Mill               8700   27.9    18.9    148    40.7    30.1    135 
 Wolverine                7650     -M      .0       *   24.9    16.3    153 
                                                -----                  -----
                Basin Index (%)                  156                    139 
 

WIND RIVER

 Burroughs Creek          8750    1.5      -M       *   30.1      -M       *
 Castle Creek             8400     .0      -M       *   19.3      -M       *
 Cold Springs             9630    2.3      .0       *   24.9    15.1    165 
 Deer Park                9700   30.9     5.4    572    47.9    26.9    178 
 Hobbs Park              10100   30.8     8.1    380    38.7    20.2    192 
 Kirwin                   9550   17.1     3.6    475    31.5    16.7    189 
 Little Warm              9370    8.5      .0       *   28.3    18.2    155 
 Owl Creek                8975     .0      .0       *   17.4    10.5    166 
 South Pass               9040   27.4      .7   3914*   38.0    23.4    162 
 St. Lawrence Alt         8620     .0      .0       *   23.4    14.3    164 
 Togwotee Pass            9580   30.2    20.6    147    44.9    30.7    146 
 Townsend Creek           8700   10.4      .0       *   32.0    17.9    179 
                                                -----                  -----
                Basin Index (%)                  410*                   169 
 

BIGHORN BASIN

 Bald Mtn.                9380   20.0    15.3    131    23.7    23.2    102 
 Bear Trap Meadow         8200     .0      .0       *   17.2    13.6    126 
 Bone Springs Div         9350   15.7    10.8    145    23.7    22.0    108 
 Grave Springs            8550     .7      .0       *   15.8    16.0     99 
 Kirwin                   9550   17.1     3.6    475    31.5    16.7    189 
 Marquette                8760   13.7      -M       *   26.7      -M       *
 Middle Powder            7760     .0      .0       *   15.9    17.1     93 
 Owl Creek                8975     .0      .0       *   17.4    10.5    166 
 Powder River Pass        9480     .2      .0       *   19.4    18.4    105 
 Shell Creek              9580   12.9    11.2    115    19.8    19.6    101 
 Timber Creek             7950     .0      .0       *   19.1    13.2    145 
                                                -----                  -----
                Basin Index (%)                  163*                   119 
 

SHOSHONE RIVER

 Blackwater               9780   36.6    21.7    169    48.5    27.1    179 
 Evening Star             9200   33.2    19.8    168    51.2    34.6    148 
 Marquette                8760   13.7      -M       *   26.7      -M       *
 Sylvan Road              7120     .0      .0       *   33.4    21.1    158 
 Younts Peak              8350     .0     6.3      0    34.8    20.4    171 
                                                -----                  -----
                Basin Index (%)                  146                    163 
 

POWDER RIVER

 Bear Trap Meadow         8200     .0      .0       *   17.2    13.6    126 
 Cloud Peak Reservoir     9860   17.1     8.4    204    28.9    20.9    138 
 Grave Springs            8550     .7      .0       *   15.8    16.0     99 
 Hansen Sawmill           8360    2.4      .0       *   19.0    13.9    137 
 Middle Powder            7760     .0      .0       *   15.9    17.1     93 
 Powder River Pass        9480     .2      .0       *   19.4    18.4    105 
 Soldier Park             8720    4.2      -M       *   23.0      -M       *
                                                -----                  -----
                Basin Index (%)                  243*                   116 
 

TONGUE RIVER

 Big Goose                7990    5.4      .0       *   21.8    18.1    120 
 Bone Springs Div         9350   15.7    10.8    145    23.7    22.0    108 
 Burgess Junction         7880    3.0     1.4    214    18.6    17.8    104 
 Dome Lake                8880   12.0      .0       *   25.3    20.1    126 
 Little Goose             8870    9.4      -M       *   26.3      -M       *
 Sucker Creek             8880    8.7     2.3    378    21.5    21.2    101 
 Tie Creek                6870     .2      .0       *   24.8    18.4    135 
                                                -----                  -----
                Basin Index (%)                  310*                   115 
 

BELLE FOURCHE

 Cole Canyon              5910     .0      .0       *   14.3    16.1     89 
                                                -----                  -----
                Basin Index (%)                     *                    89 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0      .0       *   15.2    18.0     84 
 North Rapid Creek        6130     .0      .0       *   13.3    15.7     85 
                                                -----                  -----
                Basin Index (%)                     *                    85 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   20.6    10.2    202    33.5    29.0    116 
 Blackhall Mtn            9820   28.1      -M       *   45.3      -M       *
 Columbine                9160     .0      .0       *   35.4    31.3    113 
 Divide Peak              8880     .0      .0       *   28.3    27.2    104 
 Joe Wright              10120   14.8    15.7     94    38.1    33.9    112 
 Laprele Creek            8375     .2      .0       *   18.1    17.7    102 
 Med Bow                 10500   35.9      -M       *   44.2      -M       *
 North French Creek      10130   21.8    23.0     95    36.8    34.8    106 
 Never Summer            10280   22.7    16.6    137    26.2      -M       *
 Old Battle              10000   37.4    26.5    141    46.7    43.2    108 
 Rawah                    9020     .2      .0       *   23.1    19.3    120 
 Sage Creek Basin         7850     -M      .0       *   19.6    17.8    110 
 Sand Lake               10050   31.1    22.1    141    35.8    32.8    109 
 South Brush Creek        8440     .0      .0       *   17.5    20.9     84 
 Tower                   10500   40.5    40.1    101    56.2    48.9    115 
 Webber Springs           9250    9.3     1.1    845*   40.5    32.8    123 
 Willow Creek Pass        9540   10.6     1.9    558    23.7    18.2    130 
 Zirkel                   9340    5.4      .0       *   50.6    33.8    150 
                                                -----                  -----
                Basin Index (%)                  137*                   114 
 

SWEETWATER

 Deer Park                9700   30.9     5.4    572    47.9    26.9    178 
 Larsen Creek             9000     .2      .9     22*   28.4      -M       *
 South Pass               9040   27.4      .7   3914*   38.0    23.4    162 
                                                -----                  -----
                Basin Index (%)                  836*                   171 
 

LOWER N. PLATTE

 Casper Mtn.              7900     .4      .0       *   22.2    21.4    104 
 Laprele Creek            8375     .2      .0       *   18.1    17.7    102 
 Reno Hill                8400     .1      .0       *   22.5    22.4    100 
 Windy Peak               7900     .0      .0       *   18.7    15.8    118 
                                                -----                  -----
                Basin Index (%)                     *                   105 
 

LARAMIE RIVER

 Brooklyn Lake           10240   10.2     8.0    128    29.9    28.1    106 
 Cinnabar Park            9574    3.4     3.7     92    29.5    30.1     98 
 Crow Creek               8330     .0      .0       *   16.1    15.9    101 
 Deadman Hill            10220   17.0    10.3    165    30.0    23.8    126 
 Rawah                    9020     .2      .0       *   23.1    19.3    120 
 Roach                    9700    6.9     3.9    177    29.0    25.4    114 
                                                -----                  -----
                Basin Index (%)                  146                    111 
 

S. PLATTE

 Black Mountain           8920     -M      -M       *   21.2      -M       *
 Crow Creek               8330     .0      .0       *   16.1    15.9    101 
 Deadman Hill            10220   17.0    10.3    165    30.0    23.8    126 
                                                -----                  -----
                Basin Index (%)                  165*                   116 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0      .0       *   20.9    19.1    109 
 Divide Peak              8880     .0      .0       *   28.3    27.2    104 
 Elk River                8700     .1      .0       *   25.2    25.2    100 
 Little Snake River       8915    7.9     4.1    193    45.8    35.9    128 
 Old Battle              10000   37.4    26.5    141    46.7    43.2    108 
 Sage Creek Basin         7850     -M      .0       *   19.6    17.8    110 
 Sandstone RS             8150     .0      .0       *   20.0    23.1     87 
 Whiskey Park             8950   12.2    10.2    120    37.8    34.6    109 
                                                -----                  -----
                Basin Index (%)                  141*                   108 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    8.0      .0       *   27.5    17.7    155 
 Blind Bull Sum           8650   47.4    14.2    334    40.0    24.1    166 
 East Rim Divide          7930     .1      .0       *   23.7    14.8    160 
 Elkhart Park G.S.        9400    7.5     1.0    750*   27.7    17.6    157 
 Gros Ventre Summit       8750    8.8      .0       *   27.4    16.8    163 
 Gunsight Pass            9820   18.0     4.6    391    30.1    18.4    164 
 Kendall R.S.             7740     .0      .0       *   31.9    17.4    183 
 Loomis Park              8240    7.5      .0       *   35.5    21.3    167 
 New Fork Lake            8340     -M      .0       *   22.5    14.3    157 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060     -M      .0       *   30.2    17.4    174 
 Spring Creek Divide      9000   32.4    13.6    238    46.5    28.9    161 
 Triple Peak              8500   16.7      .1  16700*   46.4    31.2    149 
                                                -----                  -----
                Basin Index (%)                  437*                   162 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869     .0      -M       *   19.8      -M       *
 Buck Pasture             9632     .2      -M       *   28.9      -M       *
 EF Blacks Fork GS        9360     -M      -M       *   24.1      -M       *
 Hams Fork                7840     .0      .0       *   25.0    15.0    167 
 Hewinta                  9500     .0      .0       *   22.4    18.4    122 
 Hickerson Park           9122     .0      .0       *   16.3    14.2    115 
 Hole-in-Rock             9168     .0      .0       *   17.2    13.7    126 
 Indian Creek             9425   29.6    12.6    235    47.1    27.8    169 
 Kelley R.S.              8180     -M      .0       *   35.6    22.6    158 
 Spirit Lk               10235     .2      -M       *   22.6      -M       *
 Steel Creek Park        10158   13.3    10.5    127    26.9    21.7    124 
                                                -----                  -----
                Basin Index (%)                  186*                   143 
 

UPPER BEAR RIVER

 Bear River RS            8777     .0      -M       *   22.3      -M       *
 Bug Lake                 7987   10.6      .0       *   39.3    24.3    162 
 Burts Miller Ranch       8000     .0      -M       *   12.4      -M       *
 Chalk Creek #1           9171   15.7     8.1    194    42.5    31.7    134 
 Hayden Fork              9130     .1      .0       *   33.2    26.6    125 
 Kelley R.S.              8180     -M      .0       *   35.6    22.6    158 
 Lily Lake                9133     .0      .0       *   24.1    22.1    109 
 Monte Cristo             8932   20.2     6.3    321    46.5    32.5    143 
 Salt River Summit        7760     .0      .0       *   32.9    20.6    160 
                                                -----                  -----
                Basin Index (%)                  324*                   141 

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


 -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.