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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 2:23p, 5/25/18
Temperature 78.9°F
Wind 1.0 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 TUESDAY: MAY 10 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030     .0     4.4      0    21.5    23.6     91 
 Black Bear               8170   25.4    36.8     69    37.5    43.1     87 
 Blind Bull Sum           8650   26.3    22.4    117    18.9    22.2     85 
 Cottonwood Creek         7670   11.7    12.8     91    31.5    28.8    109 
 East Rim Divide          7930     .0     5.9      0    13.6    13.5    101 
 Grand Targhee            9260   38.1    46.4     82    35.2    36.1     98 
 Granite Creek            6770     .0     5.5      0    20.4    22.1     92 
 Grassy Lake              7265   12.3    25.9     47    37.4    40.6     92 
 Gros Ventre Summit       8750    5.6     9.6     58    12.9    15.4     84 
 Gunsight Pass            9820   12.1    12.1    100    17.4    16.9    103 
 Lewis Lake Divide        7850   12.7    29.3     43    33.8    39.7     85 
 Phillips Bench           8200   12.9    23.1     56    29.2    31.8     92 
 Salt River Summit        7760     .0     4.5      0    19.1    19.1    100 
 Snake River Station      6920     .0     2.5      0    23.7    25.6     93 
 Spring Creek Divide      9000   23.4    23.7     99    27.6    27.1    102 
 Thumb Divide             7980     .0     8.4      0    16.1    21.8     74 
 Togwotee Pass            9580   19.8    25.4     78    27.8    28.5     98 
 Two Ocean Plateau        9240   20.9    29.6     71    26.2    31.2     84 
 Willow Creek             8380   15.0    21.1     71    38.4    39.2     98 
 Younts Peak              8350     .0    15.4      0    15.6    18.5     84 
                                                -----                  -----
                Basin Index (%)                   65                     92 
 

MADISON-GALLATIN

 Black Bear               8170   25.4    36.8     69    37.5    43.1     87 
 Canyon                   7870     .2     7.4      3    14.9    18.8     79 
 Madison Plateau          7750   10.8    20.0     54    24.6    30.0     82 
 West Yellowstone         6700     .0      .0       *   14.7    16.6     89 
 Whiskey Creek            6800    3.3    10.7     31    18.1    23.1     78 
                                                -----                  -----
                Basin Index (%)                   53                     83 
 

YELLOWSTONE

 Beartooth Lake           9360   16.5    23.0     72    19.6    23.1     85 
 Burnt Mtn                5880     .2      .0       *   14.7    17.4     84 
 Canyon                   7870     .2     7.4      3    14.9    18.8     79 
 Cole Creek               7850    9.7    17.2     56    15.6    18.0     87 
 Evening Star             9200   20.1    25.4     79    31.2    31.8     98 
 Fisher Creek             9100   25.0    34.3     73    27.4    36.6     75 
 Northeast Entrance       7350     .0      .9      0*   12.3    14.6     84 
 Parker Peak              9400   14.7    22.0     67    23.1    21.2    109 
 Sylvan Lake              8420    6.7    18.1     37    25.7    26.3     98 
 Thumb Divide             7980     .0     8.4      0    16.1    21.8     74 
 Two Ocean Plateau        9240   20.9    29.6     71    26.2    31.2     84 
 White Mill               8700   16.6    24.7     67    22.8    27.5     83 
 Wolverine                7650     .0      .0       *   13.3    14.6     91 
                                                -----                  -----
                Basin Index (%)                   62                     87 
 

WIND RIVER

 Burroughs Creek          8750    2.6      -M       *   16.5      -M       *
 Castle Creek             8400     .0      -M       *   10.3      -M       *
 Cold Springs             9630    7.3     1.5    487    16.2    13.4    121 
 Deer Park                9700   20.6    14.4    143    26.6    24.6    108 
 Hobbs Park              10100   23.5    15.9    148    26.2    17.8    147 
 Kirwin                   9550   12.7    10.9    117    18.6    14.8    126 
 Little Warm              9370    6.2     6.6     94    14.4    16.2     89 
 Owl Creek                8975    1.1      .5    220*   11.6     8.6    135 
 South Pass               9040   17.7    11.8    150    21.7    21.3    102 
 St. Lawrence Alt         8620    4.4     1.0    440    17.8    12.4    144 
 Togwotee Pass            9580   19.8    25.4     78    27.8    28.5     98 
 Townsend Creek           8700   12.9     3.9    331    23.5    15.8    149 
                                                -----                  -----
                Basin Index (%)                  137                    118 
 

BIGHORN BASIN

 Bald Mtn.                9380   14.2    20.6     69    15.5    21.1     73 
 Bear Trap Meadow         8200     .1      .0       *   10.4    11.6     90 
 Bone Springs Div         9350   11.9    16.6     72    14.9    19.7     76 
 Grave Springs            8550    6.1     7.7     79    10.8    14.1     77 
 Kirwin                   9550   12.7    10.9    117    18.6    14.8    126 
 Marquette                8760    4.4      -M       *   15.0      -M       *
 Middle Powder            7760    8.0    10.8     74    12.5    15.4     81 
 Owl Creek                8975    1.1      .5    220*   11.6     8.6    135 
 Powder River Pass        9480    3.7     9.0     41    11.6    16.3     71 
 Shell Creek              9580   12.2    16.8     73    13.4    17.6     76 
 Timber Creek             7950     .6     1.5     40    16.3    11.0    148 
                                                -----                  -----
                Basin Index (%)                   75                     90 
 

SHOSHONE RIVER

 Blackwater               9780   21.5    24.8     87    27.6    24.6    112 
 Evening Star             9200   20.1    25.4     79    31.2    31.8     98 
 Marquette                8760    4.4      -M       *   15.0      -M       *
 Sylvan Road              7120     .0     1.5      0    16.5    19.3     85 
 Younts Peak              8350     .0    15.4      0    15.6    18.5     84 
                                                -----                  -----
                Basin Index (%)                   62                     96 
 

POWDER RIVER

 Bear Trap Meadow         8200     .1      .0       *   10.4    11.6     90 
 Cloud Peak Reservoir     9860   12.4    16.8     74    17.8    18.2     98 
 Grave Springs            8550    6.1     7.7     79    10.8    14.1     77 
 Hansen Sawmill           8360     .0     1.2      0    11.6    11.9     97 
 Middle Powder            7760    8.0    10.8     74    12.5    15.4     81 
 Powder River Pass        9480    3.7     9.0     41    11.6    16.3     71 
 Soldier Park             8720     .0      -M       *   11.5      -M       *
                                                -----                  -----
                Basin Index (%)                   67                     85 
 

TONGUE RIVER

 Big Goose                7990    7.3    10.4     70    14.2    15.7     90 
 Bone Springs Div         9350   11.9    16.6     72    14.9    19.7     76 
 Burgess Junction         7880    9.2    11.4     81    13.8    16.1     86 
 Dome Lake                8880    8.8    11.2     79    15.6    17.9     87 
 Little Goose             8870    9.5      -M       *   16.9      -M       *
 Sucker Creek             8880    9.0    12.6     71    15.6    19.0     82 
 Tie Creek                6870     .6     1.5     40    13.1    15.9     82 
                                                -----                  -----
                Basin Index (%)                   73                     84 
 

BELLE FOURCHE

 Cole Canyon              5910     .0      .0       *   11.6    13.5     86 
                                                -----                  -----
                Basin Index (%)                     *                    86 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0      .0       *   12.3    15.5     79 
 North Rapid Creek        6130     .0      .0       *    9.8    13.4     73 
                                                -----                  -----
                Basin Index (%)                     *                    76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   28.6    22.4    128    31.2    27.5    113 
 Blackhall Mtn            9820   37.2      -M       *   39.6      -M       *
 Columbine                9160   18.0    12.7    142    31.6    29.6    107 
 Divide Peak              8880   21.3    14.3    149    34.3    25.5    135 
 Joe Wright              10120     -M    23.2       *     -M    31.4       *
 Laprele Creek            8375    4.9     2.8    175    17.5    16.1    109 
 Med Bow                 10500   41.8      -M       *   42.2      -M       *
 North French Creek      10130   34.4    32.7    105    37.0    32.4    114 
 Never Summer            10280   23.7    22.2    107    22.2      -M       *
 Old Battle              10000   39.9    36.8    108    39.4    40.8     97 
 Rawah                    9020   10.6     2.7    393    24.4    18.2    134 
 Sage Creek Basin         7850    7.7      .0       *   18.1    16.9    107 
 Sand Lake               10050   35.8    31.8    113    36.1    30.5    118 
 South Brush Creek        8440    7.3     5.2    140    21.6    19.1    113 
 Tower                   10500   48.4    51.4     94    47.7    46.4    103 
 Webber Springs           9250   23.5    19.4    121    34.2    31.1    110 
 Willow Creek Pass        9540   17.9    13.4    134    20.1    16.5    122 
 Zirkel                   9340     -M    19.7       *   37.9    32.4    117 
                                                -----                  -----
                Basin Index (%)                  120                    113 
 

SWEETWATER

 Deer Park                9700   20.6    14.4    143    26.6    24.6    108 
 Larsen Creek             9000    2.3     6.5     35    17.8      -M       *
 South Pass               9040   17.7    11.8    150    21.7    21.3    102 
                                                -----                  -----
                Basin Index (%)                  124                    105 
 

LOWER N. PLATTE

 Casper Mtn.              7900   16.3    11.4    143    22.5    19.4    116 
 Laprele Creek            8375    4.9     2.8    175    17.5    16.1    109 
 Reno Hill                8400   15.7    10.5    150    25.3    20.1    126 
 Windy Peak               7900    5.9      .8    738    18.2    13.9    131 
                                                -----                  -----
                Basin Index (%)                  168                    120 
 

LARAMIE RIVER

 Brooklyn Lake           10240   26.4    21.4    123    31.1    26.0    120 
 Cinnabar Park            9574   23.5    17.4    135    31.1    28.2    110 
 Crow Creek               8330     -M      .0       *     -M    14.3       *
 Deadman Hill            10220   24.1    18.5    130    26.1    21.7    120 
 Rawah                    9020   10.6     2.7    393    24.4    18.2    134 
 Roach                    9700   22.8    15.9    143    30.0    23.3    129 
                                                -----                  -----
                Basin Index (%)                  142                    122 
 

S. PLATTE

 Black Mountain           8920   11.6      -M       *   23.1      -M       *
 Crow Creek               8330     -M      .0       *     -M    14.3       *
 Deadman Hill            10220   24.1    18.5    130    26.1    21.7    120 
                                                -----                  -----
                Basin Index (%)                  130*                   120*
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .8      .0       *   23.2    18.0    129 
 Divide Peak              8880   21.3    14.3    149    34.3    25.5    135 
 Elk River                8700   12.1     7.8    155    23.7    23.7    100 
 Little Snake River       8915   26.4    20.4    129    42.3    34.4    123 
 Old Battle              10000   39.9    36.8    108    39.4    40.8     97 
 Sage Creek Basin         7850    7.7      .0       *   18.1    16.9    107 
 Sandstone RS             8150    7.4     1.9    389    19.7    21.8     90 
 Whiskey Park             8950   32.2    26.8    120    38.3    32.9    116 
                                                -----                  -----
                Basin Index (%)                  137                    112 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    9.7     8.6    113    16.5    16.1    102 
 Blind Bull Sum           8650   26.3    22.4    117    18.9    22.2     85 
 East Rim Divide          7930     .0     5.9      0    13.6    13.5    101 
 Elkhart Park G.S.        9400    6.7     9.6     70    14.9    15.8     94 
 Gros Ventre Summit       8750    5.6     9.6     58    12.9    15.4     84 
 Gunsight Pass            9820   12.1    12.1    100    17.4    16.9    103 
 Kendall R.S.             7740     -M      .0       *   14.8    16.2     91 
 Loomis Park              8240    2.8     7.3     38    19.1    19.7     97 
 New Fork Lake            8340     .0     2.6      0    14.1    12.8    110 
 Pocket Creek             9360    8.2      -M       *   13.7      -M       *
 Snider Basin             8060     .0     7.4      0    17.4    16.2    107 
 Spring Creek Divide      9000   23.4    23.7     99    27.6    27.1    102 
 Triple Peak              8500   13.7    14.9     92    31.0    29.1    107 
                                                -----                  -----
                Basin Index (%)                   81                     99 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    5.1      -M       *   16.9      -M       *
 Buck Pasture             9700   11.9      -M       *   23.3      -M       *
 EF Blacks Fork GS        9360    6.8      -M       *   17.8      -M       *
 Hams Fork                7840     .0      .1      0*   14.3    13.8    104 
 Hewinta                  9519    8.2     2.0    410    19.4    17.1    113 
 Hickerson Park           9145    8.7      .1   8700*   19.4    12.8    152 
 Hole-in-Rock             9150    2.3      .0       *   18.1    12.3    147 
 Indian Creek             9425   18.2    21.0     87    22.4    26.0     86 
 Kelley R.S.              8180    4.7     8.4     56    19.8    21.0     94 
 Spirit Lk               10235   21.1      -M       *   26.3      -M       *
 Steel Creek Park        10200   22.5    17.7    127    26.6    20.1    132 
                                                -----                  -----
                Basin Index (%)                  131*                   114 
 

UPPER BEAR RIVER

 Bear River RS            8777     .0      -M       *   16.7      -M       *
 Bug Lake                 7950    7.7    12.2     63    22.4    22.6     99 
 Burts Miller Ranch       8000     .0      -M       *    8.8      -M       *
 Chalk Creek #1           8993   15.1    21.5     70    27.2    29.7     92 
 Hayden Fork              9212    3.2     5.9     54    24.6    24.8     99 
 Kelley R.S.              8180    4.7     8.4     56    19.8    21.0     94 
 Lily Lake                9156    8.5     5.4    157    19.6    20.5     96 
 Monte Cristo             8960   21.4    21.5    100    32.2    30.6    105 
 Salt River Summit        7760     .0     4.5      0    19.1    19.1    100 
                                                -----                  -----
                Basin Index (%)                   76                     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.