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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 11:08p, 5/22/18
Temperature 48.6°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 SUNDAY: APRIL 24 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    8.2    11.0     75    21.1    22.0     96 
 Black Bear               8170   29.5    36.9     80    36.0    40.5     89 
 Blind Bull Sum           8650   25.9    24.3    107    17.4    20.6     84 
 Cottonwood Creek         7670   17.3    17.5     99    28.0    26.3    106 
 East Rim Divide          7930     .0     9.2      0    11.7    12.4     94 
 Grand Targhee            9260   41.0    42.9     96    33.6    33.2    101 
 Granite Creek            6770    7.2     9.8     73    18.5    20.5     90 
 Grassy Lake              7265   22.0    30.4     72    36.2    38.0     95 
 Gros Ventre Summit       8750    9.9    12.7     78    11.7    14.0     84 
 Gunsight Pass            9820   13.2    13.6     97    15.7    15.3    103 
 Lewis Lake Divide        7850   22.8    30.7     74    32.9    37.4     88 
 Phillips Bench           8200   19.8    25.3     78    27.4    29.6     93 
 Salt River Summit        7760    7.1     8.7     82    16.7    17.7     94 
 Snake River Station      6920    6.5    10.5     62    23.1    23.9     97 
 Spring Creek Divide      9000   25.0    23.6    106    24.6    25.3     97 
 Thumb Divide             7980    5.5    14.2     39    15.7    20.1     78 
 Togwotee Pass            9580   20.8    24.4     85    26.0    26.1    100 
 Two Ocean Plateau        9240   25.7    28.8     89    26.0    29.0     90 
 Willow Creek             8380   22.2    26.1     85    35.5    36.1     98 
 Younts Peak              8350    6.6    15.1     44    14.2    16.9     84 
                                                -----                  -----
                Basin Index (%)                   81                     93 
 

MADISON-GALLATIN

 Black Bear               8170   29.5    36.9     80    36.0    40.5     89 
 Canyon                   7870    6.2    11.8     53    13.5    17.3     78 
 Madison Plateau          7750   18.1    22.7     80    23.9    28.0     85 
 West Yellowstone         6700     .1     5.6      2    14.3    15.4     93 
 Whiskey Creek            6800   10.3    15.4     67    17.7    21.6     82 
                                                -----                  -----
                Basin Index (%)                   69                     86 
 

YELLOWSTONE

 Beartooth Lake           9360   18.7    23.6     79    19.2    21.1     91 
 Burnt Mtn                5880     .0      .0       *   12.5    14.8     84 
 Canyon                   7870    6.2    11.8     53    13.5    17.3     78 
 Cole Creek               7850   10.9    16.3     67      -M    15.1       *
 Evening Star             9200   24.4    24.4    100    29.9    29.3    102 
 Fisher Creek             9100   27.3    33.1     82    26.9    34.0     79 
 Northeast Entrance       7350     -M     5.4       *   12.1    13.2     92 
 Parker Peak              9400   18.9    21.6     88    21.8    19.2    114 
 Sylvan Lake              8420   12.8    20.3     63    24.5    24.1    102 
 Thumb Divide             7980    5.5    14.2     39    15.7    20.1     78 
 Two Ocean Plateau        9240   25.7    28.8     89    26.0    29.0     90 
 White Mill               8700   21.2    23.8     89    22.5    25.3     89 
 Wolverine                7650     .3     5.8      5    13.0    13.1     99 
                                                -----                  -----
                Basin Index (%)                   77                     91 
 

WIND RIVER

 Burroughs Creek          8750    5.7      -M       *   13.2      -M       *
 Castle Creek             8400     .1      -M       *    7.9      -M       *
 Cold Springs             9630    5.7     3.4    168    10.7    11.5     93 
 Deer Park                9700   16.5    16.3    101    19.7    22.4     88 
 Hobbs Park              10100   16.9    15.5    109    17.7    15.5    114 
 Kirwin                   9550   11.9    10.1    118    15.1    12.9    117 
 Little Warm              9370    7.6     9.7     78    12.1    14.3     85 
 Owl Creek                8975    1.2     3.0     40     6.9     7.2     96 
 South Pass               9040   13.6    15.3     89    14.4    19.2     75 
 St. Lawrence Alt         8620    3.4     5.1     67    11.0    10.5    105 
 Togwotee Pass            9580   20.8    24.4     85    26.0    26.1    100 
 Townsend Creek           8700    9.3     8.9    104    14.6    13.9    105 
                                                -----                  -----
                Basin Index (%)                   96                     97 
 

BIGHORN BASIN

 Bald Mtn.                9380   16.0    20.2     79    14.1    18.6     76 
 Bear Trap Meadow         8200    1.9     2.2     86     7.5     9.8     77 
 Bone Springs Div         9350   12.6    16.4     77    13.0    17.2     76 
 Grave Springs            8550    5.7     9.3     61     6.9    12.0     58 
 Kirwin                   9550   11.9    10.1    118    15.1    12.9    117 
 Marquette                8760    8.2      -M       *   13.5      -M       *
 Middle Powder            7760    8.3    12.3     67     8.4    13.2     64 
 Owl Creek                8975    1.2     3.0     40     6.9     7.2     96 
 Powder River Pass        9480    6.9    10.3     67     9.9    14.1     70 
 Shell Creek              9580   12.4    15.8     78    11.3    15.2     74 
 Timber Creek             7950    5.2     3.9    133    13.1     8.8    149 
                                                -----                  -----
                Basin Index (%)                   79                     82 
 

SHOSHONE RIVER

 Blackwater               9780   23.3    24.3     96    26.2    22.3    117 
 Evening Star             9200   24.4    24.4    100    29.9    29.3    102 
 Marquette                8760    8.2      -M       *   13.5      -M       *
 Sylvan Road              7120     .0     8.6      0    15.9    17.9     89 
 Younts Peak              8350    6.6    15.1     44    14.2    16.9     84 
                                                -----                  -----
                Basin Index (%)                   75                    100 
 

POWDER RIVER

 Bear Trap Meadow         8200    1.9     2.2     86     7.5     9.8     77 
 Cloud Peak Reservoir     9860   11.1    16.2     69    14.7    15.4     95 
 Grave Springs            8550    5.7     9.3     61     6.9    12.0     58 
 Hansen Sawmill           8360    3.3     4.4     75     9.4    10.0     94 
 Middle Powder            7760    8.3    12.3     67     8.4    13.2     64 
 Powder River Pass        9480    6.9    10.3     67     9.9    14.1     70 
 Soldier Park             8720     .1      -M       *    9.3      -M       *
                                                -----                  -----
                Basin Index (%)                   68                     76 
 

TONGUE RIVER

 Big Goose                7990    8.0     9.1     88    11.2    13.2     85 
 Bone Springs Div         9350   12.6    16.4     77    13.0    17.2     76 
 Burgess Junction         7880    9.9    12.5     79    11.8    13.9     85 
 Dome Lake                8880    8.7    11.8     74    12.3    15.3     80 
 Little Goose             8870    8.9      -M       *   13.3      -M       *
 Sucker Creek             8880    9.6    12.7     76    13.3    16.2     82 
 Tie Creek                6870     .0     3.8      0    10.9    13.4     81 
                                                -----                  -----
                Basin Index (%)                   74                     81 
 

BELLE FOURCHE

 Cole Canyon              5910     .3     1.1     27    10.2    10.8     94 
                                                -----                  -----
                Basin Index (%)                   27                     94 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .2     3.8      5    11.2    13.5     83 
 North Rapid Creek        6130     .0     3.8      0     9.1    11.5     79 
                                                -----                  -----
                Basin Index (%)                    3                     81 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   25.1    21.6    116    26.9    25.2    107 
 Blackhall Mtn            9820   33.1      -M       *   32.7      -M       *
 Columbine                9160   19.5    20.7     94    27.7    27.5    101 
 Divide Peak              8880   17.8    18.2     98    26.7    23.3    115 
 Joe Wright              10120     -M    23.0       *     -M    28.5       *
 Laprele Creek            8375    6.9     7.3     95    12.5    14.2     88 
 Med Bow                 10500   34.1      -M       *   33.7      -M       *
 North French Creek      10130   27.3    32.4     84    28.4    29.3     97 
 Never Summer            10280   22.0    20.9    105    19.4      -M       *
 Old Battle              10000   33.2    33.8     98    31.4    37.7     83 
 Rawah                    9020   11.6     8.0    145    20.8    16.4    127 
 Sage Creek Basin         7850    9.7     3.5    277    13.9    15.6     89 
 Sand Lake               10050   30.4    30.9     98    29.4    27.6    107 
 South Brush Creek        8440    6.7     9.9     68    15.8    16.9     93 
 Tower                   10500   41.3    49.1     84    40.5    43.1     94 
 Webber Springs           9250   21.4    21.9     98    28.3    28.9     98 
 Willow Creek Pass        9540   17.4    13.6    128    17.8    14.9    119 
 Zirkel                   9340   23.7    22.5    105    32.4    30.2    107 
                                                -----                  -----
                Basin Index (%)                  100                    100 
 

SWEETWATER

 Deer Park                9700   16.5    16.3    101    19.7    22.4     88 
 Larsen Creek             9000    6.1     9.9     62    15.1      -M       *
 South Pass               9040   13.6    15.3     89    14.4    19.2     75 
                                                -----                  -----
                Basin Index (%)                   87                     82 
 

LOWER N. PLATTE

 Casper Mtn.              7900   16.7    14.2    118    17.0    17.0    100 
 Laprele Creek            8375    6.9     7.3     95    12.5    14.2     88 
 Reno Hill                8400   15.5    13.9    112    20.4    17.8    115 
 Windy Peak               7900    6.9     6.2    111    12.2    12.2    100 
                                                -----                  -----
                Basin Index (%)                  111                    101 
 

LARAMIE RIVER

 Brooklyn Lake           10240   23.2    22.7    102    25.2    23.5    107 
 Cinnabar Park            9574   19.1    19.9     96    24.5    26.0     94 
 Crow Creek               8330    5.2      .0       *   16.6    12.6    132 
 Deadman Hill            10220   22.0    17.9    123    22.4    19.6    114 
 Rawah                    9020   11.6     8.0    145    20.8    16.4    127 
 Roach                    9700   19.5    16.7    117    23.9    21.3    112 
                                                -----                  -----
                Basin Index (%)                  118                    112 
 

S. PLATTE

 Black Mountain           8920   13.7      -M       *   19.7      -M       *
 Crow Creek               8330    5.2      .0       *   16.6    12.6    132 
 Deadman Hill            10220   22.0    17.9    123    22.4    19.6    114 
                                                -----                  -----
                Basin Index (%)                  152*                   121 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.6     2.4    150    17.2    16.4    105 
 Divide Peak              8880   17.8    18.2     98    26.7    23.3    115 
 Elk River                8700   11.5    14.7     78    20.0    21.8     92 
 Little Snake River       8915   21.6    23.5     92    34.4    31.5    109 
 Old Battle              10000   33.2    33.8     98    31.4    37.7     83 
 Sage Creek Basin         7850    9.7     3.5    277    13.9    15.6     89 
 Sandstone RS             8150    5.5     9.2     60    13.6    20.0     68 
 Whiskey Park             8950   25.9    25.6    101    30.3    30.3    100 
                                                -----                  -----
                Basin Index (%)                   98                     95 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   11.1    12.2     91    13.6    14.5     94 
 Blind Bull Sum           8650   25.9    24.3    107    17.4    20.6     84 
 East Rim Divide          7930     .0     9.2      0    11.7    12.4     94 
 Elkhart Park G.S.        9400    8.4    11.8     71    12.6    14.3     88 
 Gros Ventre Summit       8750    9.9    12.7     78    11.7    14.0     84 
 Gunsight Pass            9820   13.2    13.6     97    15.7    15.3    103 
 Kendall R.S.             7740     .0     7.0      0    12.3    14.9     83 
 Loomis Park              8240    8.7    12.1     72    17.4    18.2     96 
 New Fork Lake            8340    3.2     7.7     42    11.7    11.5    102 
 Pocket Creek             9360    8.1      -M       *   10.8      -M       *
 Snider Basin             8060    6.8    10.2     67    14.7    15.1     97 
 Spring Creek Divide      9000   25.0    23.6    106    24.6    25.3     97 
 Triple Peak              8500   19.0    19.1     99    28.3    26.8    106 
                                                -----                  -----
                Basin Index (%)                   80                     94 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    8.0      -M       *   13.7      -M       *
 Buck Pasture             9700   10.3      -M       *   18.6      -M       *
 EF Blacks Fork GS        9360    6.7      -M       *   12.8      -M       *
 Hams Fork                7840    4.5     5.3     85    11.5    12.4     93 
 Hewinta                  9519    7.6     7.2    106    15.5    15.4    101 
 Hickerson Park           9145    8.9     5.1    175    14.0    11.4    123 
 Hole-in-Rock             9150    4.2     5.3     79    14.0    10.9    128 
 Indian Creek             9425   19.9    23.6     84    19.6    24.1     81 
 Kelley R.S.              8180   10.0    11.9     84    16.7    19.3     87 
 Spirit Lk               10235   16.2      -M       *   19.8      -M       *
 Steel Creek Park        10200   18.3    16.5    111    21.0    18.2    115 
                                                -----                  -----
                Basin Index (%)                   98                    101 
 

UPPER BEAR RIVER

 Bear River RS            8777     .0      -M       *   12.8      -M       *
 Bug Lake                 7950   13.1    16.2     81    20.5    20.8     99 
 Burts Miller Ranch       8000     .0      -M       *    6.5      -M       *
 Chalk Creek #1           8993   16.5    24.6     67    23.9    27.3     88 
 Hayden Fork              9212    5.6    10.9     51    20.6    22.8     90 
 Kelley R.S.              8180   10.0    11.9     84    16.7    19.3     87 
 Lily Lake                9156    8.7    10.0     87    15.0    18.7     80 
 Monte Cristo             8960   23.4    27.3     86    29.7    28.0    106 
 Salt River Summit        7760    7.1     8.7     82    16.7    17.7     94 
                                                -----                  -----
                Basin Index (%)                   77                     93 

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


 -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.