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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


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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 WEDNESDAY: APRIL 27 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    7.3    10.4     70    21.1    22.3     95 
 Black Bear               8170   30.1    37.0     81    36.8    41.0     90 
 Blind Bull Sum           8650   25.7    24.1    107    17.4    20.8     84 
 Cottonwood Creek         7670   17.9    16.7    107    28.9    26.8    108 
 East Rim Divide          7930     .0     8.8      0    12.0    12.5     96 
 Grand Targhee            9260   41.6    43.6     95    34.2    33.6    102 
 Granite Creek            6770    6.2     9.0     69    18.8    20.8     90 
 Grassy Lake              7265   21.4    30.0     71    36.6    38.5     95 
 Gros Ventre Summit       8750    9.9    12.1     82    11.9    14.2     84 
 Gunsight Pass            9820   13.6    13.3    102    15.9    15.5    103 
 Lewis Lake Divide        7850   21.5    30.7     70    33.1    37.8     88 
 Phillips Bench           8200   19.5    25.6     76    27.6    30.0     92 
 Salt River Summit        7760    7.1     8.2     87    17.2    18.0     96 
 Snake River Station      6920    5.6     9.4     60    23.3    24.2     96 
 Spring Creek Divide      9000   25.3    24.0    105    25.2    25.6     98 
 Thumb Divide             7980    4.9    13.9     35    15.8    20.4     77 
 Togwotee Pass            9580   21.9    24.6     89    26.5    26.6    100 
 Two Ocean Plateau        9240   26.0    29.3     89    26.0    29.5     88 
 Willow Creek             8380   22.7    24.9     91    36.2    36.7     99 
 Younts Peak              8350    6.0    15.1     40    14.4    17.2     84 
                                                -----                  -----
                Basin Index (%)                   81                     94 
 

MADISON-GALLATIN

 Black Bear               8170   30.1    37.0     81    36.8    41.0     90 
 Canyon                   7870    6.3    11.5     55    14.0    17.6     80 
 Madison Plateau          7750   17.8    22.2     80    24.2    28.3     86 
 West Yellowstone         6700     .0     4.2      0    14.5    15.6     93 
 Whiskey Creek            6800    9.2    15.4     60    17.8    21.9     81 
                                                -----                  -----
                Basin Index (%)                   70                     86 
 

YELLOWSTONE

 Beartooth Lake           9360   18.6    23.4     79    19.3    21.4     90 
 Burnt Mtn                5880     -M      .0       *   13.0    15.0     87 
 Canyon                   7870    6.3    11.5     55    14.0    17.6     80 
 Cole Creek               7850   11.0    16.3     67    13.9    15.7     89 
 Evening Star             9200   24.6    24.6    100    30.3    29.7    102 
 Fisher Creek             9100   27.6    33.2     83    27.1    34.4     79 
 Northeast Entrance       7350     -M     4.6       *   12.2    13.4     91 
 Parker Peak              9400   19.8    21.8     91    22.5    19.6    115 
 Sylvan Lake              8420   13.5    20.3     67    25.2    24.5    103 
 Thumb Divide             7980    4.9    13.9     35    15.8    20.4     77 
 Two Ocean Plateau        9240   26.0    29.3     89    26.0    29.5     88 
 White Mill               8700   21.0    23.7     89    22.6    25.7     88 
 Wolverine                7650     .0     4.8      0    13.0    13.4     97 
                                                -----                  -----
                Basin Index (%)                   78                     91 
 

WIND RIVER

 Burroughs Creek          8750    5.6      -M       *   13.4      -M       *
 Castle Creek             8400     .1      -M       *    8.5      -M       *
 Cold Springs             9630    6.6     2.4    275    11.8    11.9     99 
 Deer Park                9700   18.3    16.3    112    21.6    22.9     94 
 Hobbs Park              10100   19.5    15.8    123    20.3    16.2    125 
 Kirwin                   9550   12.3    10.2    121    15.6    13.3    117 
 Little Warm              9370    7.6     9.2     83    12.3    14.7     84 
 Owl Creek                8975    2.3     2.0    115     8.0     7.5    107 
 South Pass               9040   15.8    15.2    104    16.4    19.8     83 
 St. Lawrence Alt         8620    4.8     4.2    114    12.6    11.0    115 
 Togwotee Pass            9580   21.9    24.6     89    26.5    26.6    100 
 Townsend Creek           8700   11.7     8.4    139    16.9    14.5    117 
                                                -----                  -----
                Basin Index (%)                  112                    102 
 

BIGHORN BASIN

 Bald Mtn.                9380   16.7    20.6     81    14.6    19.1     76 
 Bear Trap Meadow         8200    3.6     1.6    225     9.4    10.1     93 
 Bone Springs Div         9350   14.1    16.5     85    13.8    17.6     78 
 Grave Springs            8550    8.8     9.1     97     9.6    12.3     78 
 Kirwin                   9550   12.3    10.2    121    15.6    13.3    117 
 Marquette                8760    8.3      -M       *   13.9      -M       *
 Middle Powder            7760   12.5    12.2    102    11.3    13.7     82 
 Owl Creek                8975    2.3     2.0    115     8.0     7.5    107 
 Powder River Pass        9480    7.9    10.0     79    11.0    14.5     76 
 Shell Creek              9580   13.8    15.9     87    12.4    15.7     79 
 Timber Creek             7950    5.3     3.6    147    13.6     9.3    146 
                                                -----                  -----
                Basin Index (%)                   96                     90 
 

SHOSHONE RIVER

 Blackwater               9780   23.6    24.7     96    26.5    22.8    116 
 Evening Star             9200   24.6    24.6    100    30.3    29.7    102 
 Marquette                8760    8.3      -M       *   13.9      -M       *
 Sylvan Road              7120     .0     7.5      0    16.3    18.1     90 
 Younts Peak              8350    6.0    15.1     40    14.4    17.2     84 
                                                -----                  -----
                Basin Index (%)                   75                    100 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.6     1.6    225     9.4    10.1     93 
 Cloud Peak Reservoir     9860   13.6    16.5     82    17.0    16.0    106 
 Grave Springs            8550    8.8     9.1     97     9.6    12.3     78 
 Hansen Sawmill           8360    4.1     3.8    108    10.3    10.4     99 
 Middle Powder            7760   12.5    12.2    102    11.3    13.7     82 
 Powder River Pass        9480    7.9    10.0     79    11.0    14.5     76 
 Soldier Park             8720    1.3      -M       *   10.5      -M       *
                                                -----                  -----
                Basin Index (%)                   95                     89 
 

TONGUE RIVER

 Big Goose                7990    9.8     9.1    108    13.1    13.5     97 
 Bone Springs Div         9350   14.1    16.5     85    13.8    17.6     78 
 Burgess Junction         7880   11.2    12.3     91    12.9    14.3     90 
 Dome Lake                8880   10.6    11.7     91    14.2    15.9     89 
 Little Goose             8870   11.5      -M       *   15.9      -M       *
 Sucker Creek             8880   11.1    12.5     89    14.8    16.7     89 
 Tie Creek                6870     .2     3.0      7    11.8    13.7     86 
                                                -----                  -----
                Basin Index (%)                   88                     88 
 

BELLE FOURCHE

 Cole Canyon              5910     .5      .4    125*   10.8    11.2     96 
                                                -----                  -----
                Basin Index (%)                  125*                    96 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .4     2.7     15    11.6    13.8     84 
 North Rapid Creek        6130     .1     2.7      4     9.3    11.8     79 
                                                -----                  -----
                Basin Index (%)                    9                     82 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   26.4    22.1    119    28.1    25.7    109 
 Blackhall Mtn            9820   34.7      -M       *   34.8      -M       *
 Columbine                9160   20.0    19.9    101    28.6    28.0    102 
 Divide Peak              8880   20.4    17.9    114    29.7    23.8    125 
 Joe Wright              10120     -M    23.4       *     -M    29.2       *
 Laprele Creek            8375    8.3     7.1    117    14.4    14.6     99 
 Med Bow                 10500   38.0      -M       *   37.0      -M       *
 North French Creek      10130   31.9    32.9     97    32.3    30.0    108 
 Never Summer            10280   22.5    21.4    105    20.0      -M       *
 Old Battle              10000   36.6    34.4    106    34.5    38.4     90 
 Rawah                    9020   12.1     7.8    155    21.7    16.8    129 
 Sage Creek Basin         7850   11.4     1.7    671    16.0    15.8    101 
 Sand Lake               10050   33.1    31.2    106    32.1    28.4    113 
 South Brush Creek        8440    9.0    10.0     90    18.3    17.4    105 
 Tower                   10500   44.0    49.7     89    42.4    43.8     97 
 Webber Springs           9250   22.7    22.0    103    30.2    29.4    103 
 Willow Creek Pass        9540   17.5    13.8    127    18.2    15.3    119 
 Zirkel                   9340   25.0    21.9    114    34.2    30.5    112 
                                                -----                  -----
                Basin Index (%)                  109                    106 
 

SWEETWATER

 Deer Park                9700   18.3    16.3    112    21.6    22.9     94 
 Larsen Creek             9000    6.3     9.6     66    15.8      -M       *
 South Pass               9040   15.8    15.2    104    16.4    19.8     83 
                                                -----                  -----
                Basin Index (%)                   98                     89 
 

LOWER N. PLATTE

 Casper Mtn.              7900   19.8    14.1    140    19.5    17.5    111 
 Laprele Creek            8375    8.3     7.1    117    14.4    14.6     99 
 Reno Hill                8400   18.0    13.6    132    22.9    18.3    125 
 Windy Peak               7900    8.4     5.5    153    13.9    12.6    110 
                                                -----                  -----
                Basin Index (%)                  135                    112 
 

LARAMIE RIVER

 Brooklyn Lake           10240   25.4    23.0    110    27.4    24.1    114 
 Cinnabar Park            9574   21.7    20.1    108    27.1    26.4    103 
 Crow Creek               8330    7.4      .0       *   19.0    13.0    146 
 Deadman Hill            10220   23.1    18.5    125    23.4    20.1    116 
 Rawah                    9020   12.1     7.8    155    21.7    16.8    129 
 Roach                    9700   21.4    17.0    126    26.1    21.8    120 
                                                -----                  -----
                Basin Index (%)                  129                    118 
 

S. PLATTE

 Black Mountain           8920   13.9      -M       *   20.7      -M       *
 Crow Creek               8330    7.4      .0       *   19.0    13.0    146 
 Deadman Hill            10220   23.1    18.5    125    23.4    20.1    116 
                                                -----                  -----
                Basin Index (%)                  165*                   128 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    4.9     1.0    490*   19.0    16.8    113 
 Divide Peak              8880   20.4    17.9    114    29.7    23.8    125 
 Elk River                8700   12.5    14.3     87    21.3    22.2     96 
 Little Snake River       8915   24.7    23.1    107    37.5    32.0    117 
 Old Battle              10000   36.6    34.4    106    34.5    38.4     90 
 Sage Creek Basin         7850   11.4     1.7    671    16.0    15.8    101 
 Sandstone RS             8150    7.5     7.7     97    15.4    20.4     75 
 Whiskey Park             8950   28.7    25.7    112    33.3    30.8    108 
                                                -----                  -----
                Basin Index (%)                  117                    103 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   11.4    11.8     97    14.2    14.8     96 
 Blind Bull Sum           8650   25.7    24.1    107    17.4    20.8     84 
 East Rim Divide          7930     .0     8.8      0    12.0    12.5     96 
 Elkhart Park G.S.        9400    8.8    11.8     75    13.1    14.6     90 
 Gros Ventre Summit       8750    9.9    12.1     82    11.9    14.2     84 
 Gunsight Pass            9820   13.6    13.3    102    15.9    15.5    103 
 Kendall R.S.             7740     -M     5.9       *   12.4    15.1     82 
 Loomis Park              8240    8.2    11.5     71    17.6    18.5     95 
 New Fork Lake            8340    2.8     7.1     39    11.7    11.7    100 
 Pocket Creek             9360    9.0      -M       *   11.5      -M       *
 Snider Basin             8060    6.5    10.0     65    15.0    15.2     99 
 Spring Creek Divide      9000   25.3    24.0    105    25.2    25.6     98 
 Triple Peak              8500   19.4    18.8    103    28.7    27.3    105 
                                                -----                  -----
                Basin Index (%)                   86                     95 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    8.8      -M       *   14.6      -M       *
 Buck Pasture             9700   11.7      -M       *   19.8      -M       *
 EF Blacks Fork GS        9360    7.7      -M       *   13.7      -M       *
 Hams Fork                7840    4.4     4.4    100    11.9    12.7     94 
 Hewinta                  9519    8.6     6.1    141    16.5    15.7    105 
 Hickerson Park           9145    9.5     5.0    190    15.2    11.7    130 
 Hole-in-Rock             9150    4.5     4.2    107    14.9    11.2    133 
 Indian Creek             9425   20.5    23.8     86    20.0    24.4     82 
 Kelley R.S.              8180   10.0    11.8     85    17.0    19.7     86 
 Spirit Lk               10235   18.0      -M       *   21.4      -M       *
 Steel Creek Park        10200   19.7    16.7    118    22.4    18.6    120 
                                                -----                  -----
                Basin Index (%)                  107                    103 
 

UPPER BEAR RIVER

 Bear River RS            8777    1.2      -M       *   14.1      -M       *
 Bug Lake                 7950   13.1    16.1     81    20.8    21.2     98 
 Burts Miller Ranch       8000     .7      -M       *    7.1      -M       *
 Chalk Creek #1           8993   17.5    24.7     71    24.8    27.8     89 
 Hayden Fork              9212    7.2    10.1     71    22.3    23.2     96 
 Kelley R.S.              8180   10.0    11.8     85    17.0    19.7     86 
 Lily Lake                9156   10.1     9.7    104    16.4    19.0     86 
 Monte Cristo             8960   24.5    27.3     90    30.5    28.6    107 
 Salt River Summit        7760    7.1     8.2     87    17.2    18.0     96 
                                                -----                  -----
                Basin Index (%)                   83                     95 

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


 -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.