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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 9:08p, 5/24/18
Temperature 63.7°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 MONDAY: MAY 16 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030     .1      .0       *   21.6    24.1     90 
 Black Bear               8170   22.4    35.8     63    38.3    44.0     87 
 Blind Bull Sum           8650   23.4    21.8    107    19.1    22.9     83 
 Cottonwood Creek         7670     -M     9.6       *     -M    29.6       *
 East Rim Divide          7930     .0     3.3      0    13.8    13.9     99 
 Grand Targhee            9260     -M    44.6       *     -M    36.7       *
 Granite Creek            6770     .0      .4      0*   20.7    22.6     92 
 Grassy Lake              7265    8.9    21.3     42    38.0    41.3     92 
 Gros Ventre Summit       8750    2.4     8.2     29    13.1    15.8     83 
 Gunsight Pass            9820     -M    12.0       *     -M    17.5       *
 Lewis Lake Divide        7850    9.0    25.3     36    34.0    40.5     84 
 Phillips Bench           8200     -M    21.5       *     -M    32.5       *
 Salt River Summit        7760     .0     1.0      0*   19.7    19.6    101 
 Snake River Station      6920     .1      .0       *   24.1    26.1     92 
 Spring Creek Divide      9000   21.1    22.3     95    28.1    27.8    101 
 Thumb Divide             7980     .0     4.3      0    16.3    22.4     73 
 Togwotee Pass            9580   18.9    24.1     78    28.8    29.2     99 
 Two Ocean Plateau        9240     -M    29.1       *     -M    32.3       *
 Willow Creek             8380   10.9    19.3     56    39.0    40.3     97 
 Younts Peak              8350     .0    13.3      0    16.3    19.2     85 
                                                -----                  -----
                Basin Index (%)                   58                     91 
 

MADISON-GALLATIN

 Black Bear               8170   22.4    35.8     63    38.3    44.0     87 
 Canyon                   7870     .0     4.8      0    14.8    19.5     76 
 Madison Plateau          7750    7.9    16.5     48    25.1    30.9     81 
 West Yellowstone         6700     .1      .0       *   14.9    17.2     87 
 Whiskey Creek            6800     .0     8.1      0    18.7    23.8     79 
                                                -----                  -----
                Basin Index (%)                   47                     83 
 

YELLOWSTONE

 Beartooth Lake           9360   15.6    22.5     69    20.0    23.8     84 
 Burnt Mtn                5880     .0      .0       *   16.1    18.8     86 
 Canyon                   7870     .0     4.8      0    14.8    19.5     76 
 Cole Creek               7850   10.2    16.9     60    16.8    19.0     88 
 Evening Star             9200   19.8    25.1     79    31.6    32.7     97 
 Fisher Creek             9100   23.7    33.9     70    27.6    37.7     73 
 Northeast Entrance       7350     .0      .0       *   12.5    15.1     83 
 Parker Peak              9400   13.2    21.3     62    23.9    22.0    109 
 Sylvan Lake              8420    4.2    16.7     25    26.2    27.1     97 
 Thumb Divide             7980     .0     4.3      0    16.3    22.4     73 
 Two Ocean Plateau        9240     -M    29.1       *     -M    32.3       *
 White Mill               8700   15.1    24.1     63    23.2    28.4     82 
 Wolverine                7650     .1      .0       *   13.7    15.2     90 
                                                -----                  -----
                Basin Index (%)                   60                     86 
 

WIND RIVER

 Burroughs Creek          8750     .0      -M       *   17.3      -M       *
 Castle Creek             8400     .0      -M       *   10.8      -M       *
 Cold Springs             9630    6.0      .0       *   16.7    14.1    118 
 Deer Park                9700   18.5    13.0    142    26.9    25.6    105 
 Hobbs Park              10100   22.6    14.6    155    26.4    18.7    141 
 Kirwin                   9550   11.1    10.1    110    19.0    15.5    123 
 Little Warm              9370    3.7     5.6     66    14.8    17.0     87 
 Owl Creek                8975     .1      .0       *   12.1     9.3    130 
 South Pass               9040   15.3     9.7    158    21.9    22.2     99 
 St. Lawrence Alt         8620    2.7      .0       *   18.4    13.2    139 
 Togwotee Pass            9580   18.9    24.1     78    28.8    29.2     99 
 Townsend Creek           8700   11.0      .6   1833*   23.7    16.7    142 
                                                -----                  -----
                Basin Index (%)                  141                    115 
 

BIGHORN BASIN

 Bald Mtn.                9380   14.9    20.5     73    16.5    21.8     76 
 Bear Trap Meadow         8200     .2      .0       *   11.1    12.2     91 
 Bone Springs Div         9350   11.7    15.6     75    15.4    20.4     75 
 Grave Springs            8550    5.7     5.9     97    11.4    14.8     77 
 Kirwin                   9550   11.1    10.1    110    19.0    15.5    123 
 Marquette                8760    4.3      -M       *   15.9      -M       *
 Middle Powder            7760    8.4     8.3    101    13.4    15.9     84 
 Owl Creek                8975     .1      .0       *   12.1     9.3    130 
 Powder River Pass        9480    3.4     8.0     42    12.1    16.8     72 
 Shell Creek              9580   12.7    16.4     77    14.2    18.2     78 
 Timber Creek             7950     .0      .0       *   17.2    11.8    146 
                                                -----                  -----
                Basin Index (%)                   80                     91 
 

SHOSHONE RIVER

 Blackwater               9780   21.5    24.9     86    28.4    25.4    112 
 Evening Star             9200   19.8    25.1     79    31.6    32.7     97 
 Marquette                8760    4.3      -M       *   15.9      -M       *
 Sylvan Road              7120     .1      .0       *   17.0    19.9     85 
 Younts Peak              8350     .0    13.3      0    16.3    19.2     85 
                                                -----                  -----
                Basin Index (%)                   65                     96 
 

POWDER RIVER

 Bear Trap Meadow         8200     .2      .0       *   11.1    12.2     91 
 Cloud Peak Reservoir     9860   12.0    16.1     75    18.6    19.1     97 
 Grave Springs            8550    5.7     5.9     97    11.4    14.8     77 
 Hansen Sawmill           8360     .6      .0       *   12.4    12.5     99 
 Middle Powder            7760    8.4     8.3    101    13.4    15.9     84 
 Powder River Pass        9480    3.4     8.0     42    12.1    16.8     72 
 Soldier Park             8720     .5      -M       *   12.3      -M       *
                                                -----                  -----
                Basin Index (%)                   79                     87 
 

TONGUE RIVER

 Big Goose                7990    6.8     8.2     83    14.9    16.7     89 
 Bone Springs Div         9350   11.7    15.6     75    15.4    20.4     75 
 Burgess Junction         7880    8.7    10.2     85    14.4    16.6     87 
 Dome Lake                8880    8.5     9.2     92    16.2    18.6     87 
 Little Goose             8870    9.6      -M       *   17.7      -M       *
 Sucker Creek             8880    8.5    10.8     79    16.6    19.8     84 
 Tie Creek                6870     .0      .0       *   13.5    16.9     80 
                                                -----                  -----
                Basin Index (%)                   82                     83 
 

BELLE FOURCHE

 Cole Canyon              5910     .0      .0       *   12.2    14.5     84 
                                                -----                  -----
                Basin Index (%)                     *                    84 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0      .0       *   12.6    16.3     77 
 North Rapid Creek        6130     .0      .0       *    9.9    14.2     70 
                                                -----                  -----
                Basin Index (%)                     *                    74 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   27.9    21.1    132    31.8    28.4    112 
 Blackhall Mtn            9820   35.6      -M       *   40.1      -M       *
 Columbine                9160   12.9     7.5    172    32.3    30.3    107 
 Divide Peak              8880   18.0     9.6    188    34.9    26.1    134 
 Joe Wright              10120     -M    22.6       *     -M    32.3       *
 Laprele Creek            8375    1.4      .0       *   17.8    16.5    108 
 Med Bow                 10500   41.5      -M       *   42.9      -M       *
 North French Creek      10130   33.4    31.8    105    37.6    33.2    113 
 Never Summer            10280   23.0    22.0    105    22.8      -M       *
 Old Battle              10000   39.1    34.5    113    40.7    41.6     98 
 Rawah                    9020    7.6     1.2    633    25.0    18.8    133 
 Sage Creek Basin         7850    1.3      .0       *   18.2    17.2    106 
 Sand Lake               10050   35.1    29.9    117    36.7    31.4    117 
 South Brush Creek        8440    3.3     1.0    330*   22.2    19.7    113 
 Tower                   10500   48.6    49.5     98    49.0    47.3    104 
 Webber Springs           9250   21.3    15.6    137    34.8    31.8    109 
 Willow Creek Pass        9540   15.2    11.0    138    20.5    17.0    121 
 Zirkel                   9340     -M    15.6       *   38.3    33.3    115 
                                                -----                  -----
                Basin Index (%)                  123                    112 
 

SWEETWATER

 Deer Park                9700   18.5    13.0    142    26.9    25.6    105 
 Larsen Creek             9000     .3     4.7      6    18.2      -M       *
 South Pass               9040   15.3     9.7    158    21.9    22.2     99 
                                                -----                  -----
                Basin Index (%)                  124                    102 
 

LOWER N. PLATTE

 Casper Mtn.              7900   14.7     8.3    177    22.9    20.0    114 
 Laprele Creek            8375    1.4      .0       *   17.8    16.5    108 
 Reno Hill                8400   13.9     7.2    193    25.7    21.0    122 
 Windy Peak               7900    2.8      .0       *   18.4    14.3    129 
                                                -----                  -----
                Basin Index (%)                  212                    118 
 

LARAMIE RIVER

 Brooklyn Lake           10240   23.7    19.2    123    31.5    26.7    118 
 Cinnabar Park            9574   21.4    14.8    145    31.4    29.2    108 
 Crow Creek               8330     .2      .0       *     -M    15.0       *
 Deadman Hill            10220   22.5    18.2    124    26.6    22.5    118 
 Rawah                    9020    7.6     1.2    633    25.0    18.8    133 
 Roach                    9700   20.3    13.5    150    30.5    24.1    127 
                                                -----                  -----
                Basin Index (%)                  143                    120 
 

S. PLATTE

 Black Mountain           8920    7.0      -M       *   23.4      -M       *
 Crow Creek               8330     .2      .0       *     -M    15.0       *
 Deadman Hill            10220   22.5    18.2    124    26.6    22.5    118 
                                                -----                  -----
                Basin Index (%)                  125*                   118*
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0      .0       *   23.7    18.4    129 
 Divide Peak              8880   18.0     9.6    188    34.9    26.1    134 
 Elk River                8700    8.4     2.2    382    24.0    24.3     99 
 Little Snake River       8915   23.3    17.3    135    42.9    35.0    123 
 Old Battle              10000   39.1    34.5    113    40.7    41.6     98 
 Sage Creek Basin         7850    1.3      .0       *   18.2    17.2    106 
 Sandstone RS             8150    3.2      .0       *   20.2    22.3     91 
 Whiskey Park             8950     -M    24.2       *   39.0    33.6    116 
                                                -----                  -----
                Basin Index (%)                  147                    111 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    6.2     7.0     89    16.9    16.6    102 
 Blind Bull Sum           8650   23.4    21.8    107    19.1    22.9     83 
 East Rim Divide          7930     .0     3.3      0    13.8    13.9     99 
 Elkhart Park G.S.        9400     -M     8.0       *     -M    16.4       *
 Gros Ventre Summit       8750    2.4     8.2     29    13.1    15.8     83 
 Gunsight Pass            9820     -M    12.0       *     -M    17.5       *
 Kendall R.S.             7740     -M      .0       *   15.0    16.5     91 
 Loomis Park              8240     -M     5.4       *     -M    20.3       *
 New Fork Lake            8340     .1      .7     14*   14.5    13.3    109 
 Pocket Creek             9360    5.6      -M       *   14.2      -M       *
 Snider Basin             8060     .0     3.9      0    17.6    16.6    106 
 Spring Creek Divide      9000   21.1    22.3     95    28.1    27.8    101 
 Triple Peak              8500   10.3    12.0     86    31.5    29.9    105 
                                                -----                  -----
                Basin Index (%)                   80                     98 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870     -M      -M       *     -M      -M       *
 Buck Pasture             9700    8.5      -M       *   23.7      -M       *
 EF Blacks Fork GS        9360    2.7      -M       *   18.4      -M       *
 Hams Fork                7840     .0      .0       *   14.6    14.2    103 
 Hewinta                  9519    4.2      .0       *   19.1    17.5    109 
 Hickerson Park           9145    4.8      .0       *   19.7    13.2    149 
 Hole-in-Rock             9150     -M      .0       *   18.8    12.8    147 
 Indian Creek             9425   15.3    20.9     73    22.9    26.7     86 
 Kelley R.S.              8180     .5     5.8      9    20.4    21.5     95 
 Spirit Lk               10235   18.7      -M       *   26.7      -M       *
 Steel Creek Park        10200   20.8    16.1    129    26.9    20.7    130 
                                                -----                  -----
                Basin Index (%)                  107*                   112 
 

UPPER BEAR RIVER

 Bear River RS            8777     .0      -M       *   17.2      -M       *
 Bug Lake                 7950    3.1     9.4     33    22.7    23.2     98 
 Burts Miller Ranch       8000     .0      -M       *    9.0      -M       *
 Chalk Creek #1           8993   12.0    18.7     64    28.0    30.5     92 
 Hayden Fork              9212     .1     2.1      5    25.5    25.5    100 
 Kelley R.S.              8180     .5     5.8      9    20.4    21.5     95 
 Lily Lake                9156    4.5      .7    643*   20.3    21.1     96 
 Monte Cristo             8960   15.9    18.4     86    32.6    31.3    104 
 Salt River Summit        7760     .0     1.0      0*   19.7    19.6    101 
                                                -----                  -----
                Basin Index (%)                   64                     98 

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


 -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.