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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 1:27a, 8/17/18
Temperature 62.4°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 WEDNESDAY: APRIL 20 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   10.6    11.9     89    20.9    21.7     96 
 Black Bear               8170   31.1    36.9     84    35.8    39.8     90 
 Blind Bull Sum           8650   25.3    24.0    105    17.3    20.2     86 
 Cottonwood Creek         7670   18.6    18.6    100    27.5    25.8    107 
 East Rim Divide          7930    3.8     9.5     40    11.7    12.2     96 
 Grand Targhee            9260   43.0    42.0    102    33.3    32.6    102 
 Granite Creek            6770    9.5    10.8     88    18.4    20.3     91 
 Grassy Lake              7265   25.8    31.3     82    36.0    37.3     97 
 Gros Ventre Summit       8750   11.3    13.2     86    11.8    13.7     86 
 Gunsight Pass            9820   13.7    13.6    101    15.5    14.9    104 
 Lewis Lake Divide        7850   25.7    30.4     85    32.8    36.8     89 
 Phillips Bench           8200   21.4    25.6     84    27.2    29.2     93 
 Salt River Summit        7760    9.4     9.7     97    16.3    17.4     94 
 Snake River Station      6920    9.8    11.3     87    23.2    23.5     99 
 Spring Creek Divide      9000   26.0    23.5    111    24.5    24.7     99 
 Thumb Divide             7980    8.5    14.5     59    15.7    19.6     80 
 Togwotee Pass            9580   21.4    23.8     90    25.7    25.7    100 
 Two Ocean Plateau        9240   27.0    28.1     96    25.8    28.5     91 
 Willow Creek             8380   24.7    26.8     92    34.4    35.3     97 
 Younts Peak              8350   10.1    15.1     67    14.0    16.6     84 
                                                -----                  -----
                Basin Index (%)                   90                     94 
 

MADISON-GALLATIN

 Black Bear               8170   31.1    36.9     84    35.8    39.8     90 
 Canyon                   7870    8.3    12.2     68    13.6    17.0     80 
 Madison Plateau          7750   20.4    22.9     89    23.7    27.5     86 
 West Yellowstone         6700    2.7     7.4     36    14.2    15.1     94 
 Whiskey Creek            6800   11.8    15.3     77    17.7    21.2     83 
                                                -----                  -----
                Basin Index (%)                   78                     87 
 

YELLOWSTONE

 Beartooth Lake           9360   18.7    23.4     80    18.9    20.8     91 
 Burnt Mtn                5880     .0      .0       *   12.3    14.2     87 
 Canyon                   7870    8.3    12.2     68    13.6    17.0     80 
 Cole Creek               7850   11.6    16.3     71    13.1    14.5     90 
 Evening Star             9200   25.6    24.8    103    29.5    28.7    103 
 Fisher Creek             9100   28.1    32.4     87    26.8    33.3     80 
 Northeast Entrance       7350    1.3     6.7     19    11.9    13.0     92 
 Parker Peak              9400   20.9    20.9    100    21.6    18.7    116 
 Sylvan Lake              8420   15.1    20.4     74    24.3    23.6    103 
 Thumb Divide             7980    8.5    14.5     59    15.7    19.6     80 
 Two Ocean Plateau        9240   27.0    28.1     96    25.8    28.5     91 
 White Mill               8700   22.3    23.7     94    22.5    24.9     90 
 Wolverine                7650    5.3     7.2     74    12.3    12.8     96 
                                                -----                  -----
                Basin Index (%)                   84                     92 
 

WIND RIVER

 Burroughs Creek          8750    8.1      -M       *   13.2      -M       *
 Castle Creek             8400     .8      -M       *    7.6      -M       *
 Cold Springs             9630    7.4     4.6    161    10.5    10.9     96 
 Deer Park                9700   17.1    16.3    105    19.5    21.5     91 
 Hobbs Park              10100   17.1    14.8    116    17.6    14.8    119 
 Kirwin                   9550   11.6    10.0    116    14.6    12.4    118 
 Little Warm              9370    8.7    10.1     86    12.1    13.9     87 
 Owl Creek                8975    3.2     4.0     80     6.6     6.9     96 
 South Pass               9040   14.3    15.5     92    14.3    18.6     77 
 St. Lawrence Alt         8620    5.6     5.3    106    10.9     9.9    110 
 Togwotee Pass            9580   21.4    23.8     90    25.7    25.7    100 
 Townsend Creek           8700   10.9     9.4    116    14.3    13.3    108 
                                                -----                  -----
                Basin Index (%)                  103                     99 
 

BIGHORN BASIN

 Bald Mtn.                9380   16.6    19.8     84    14.0    18.2     77 
 Bear Trap Meadow         8200    4.2     3.2    131     7.4     9.4     79 
 Bone Springs Div         9350   14.4    16.1     89    12.9    16.7     77 
 Grave Springs            8550    6.7     9.6     70     6.8    11.7     58 
 Kirwin                   9550   11.6    10.0    116    14.6    12.4    118 
 Marquette                8760    8.6      -M       *   13.7      -M       *
 Middle Powder            7760    9.4    12.5     75     8.2    12.8     64 
 Owl Creek                8975    3.2     4.0     80     6.6     6.9     96 
 Powder River Pass        9480    7.9    10.2     77     9.7    13.7     71 
 Shell Creek              9580   13.2    15.4     86    11.2    14.8     76 
 Timber Creek             7950    6.1     4.8    127    12.9     8.4    154 
                                                -----                  -----
                Basin Index (%)                   88                     83 
 

SHOSHONE RIVER

 Blackwater               9780   23.5    23.8     99    26.2    21.8    120 
 Evening Star             9200   25.6    24.8    103    29.5    28.7    103 
 Marquette                8760    8.6      -M       *   13.7      -M       *
 Sylvan Road              7120     .0     9.8      0    16.0    17.6     91 
 Younts Peak              8350   10.1    15.1     67    14.0    16.6     84 
                                                -----                  -----
                Basin Index (%)                   81                    101 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.2     3.2    131     7.4     9.4     79 
 Cloud Peak Reservoir     9860   11.8    15.8     75    14.5    14.9     97 
 Grave Springs            8550    6.7     9.6     70     6.8    11.7     58 
 Hansen Sawmill           8360    5.5     4.8    115     9.1     9.6     95 
 Middle Powder            7760    9.4    12.5     75     8.2    12.8     64 
 Powder River Pass        9480    7.9    10.2     77     9.7    13.7     71 
 Soldier Park             8720    1.5      -M       *    8.9      -M       *
                                                -----                  -----
                Basin Index (%)                   81                     77 
 

TONGUE RIVER

 Big Goose                7990    8.9     9.3     96    11.0    12.6     87 
 Bone Springs Div         9350   14.4    16.1     89    12.9    16.7     77 
 Burgess Junction         7880   10.7    12.5     86    11.7    13.4     87 
 Dome Lake                8880   10.0    11.8     85    12.2    14.9     82 
 Little Goose             8870    9.9      -M       *   13.2      -M       *
 Sucker Creek             8880   10.4    12.7     82    13.3    15.8     84 
 Tie Creek                6870    1.6     4.4     36    10.9    12.8     85 
                                                -----                  -----
                Basin Index (%)                   84                     84 
 

BELLE FOURCHE

 Cole Canyon              5910     .7     2.0     35    10.1    10.4     97 
                                                -----                  -----
                Basin Index (%)                   35                     97 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0     4.1      0    11.2    13.1     85 
 North Rapid Creek        6130     .0     4.2      0     9.0    11.0     82 
                                                -----                  -----
                Basin Index (%)                    0                     84 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   25.4    21.4    119    26.6    24.3    109 
 Blackhall Mtn            9820   33.3      -M       *   32.6      -M       *
 Columbine                9160   21.8    20.6    106    27.4    26.9    102 
 Divide Peak              8880   19.1    18.9    101    26.3    22.8    115 
 Joe Wright              10120     -M    22.2       *     -M    27.8       *
 Laprele Creek            8375    8.2     8.0    102    12.3    13.7     90 
 Med Bow                 10500   35.8      -M       *   33.3      -M       *
 North French Creek      10130   27.5    32.0     86    27.9    28.6     98 
 Never Summer            10280   21.9    20.7    106    19.2      -M       *
 Old Battle              10000   32.7    32.7    100    30.9    37.0     84 
 Rawah                    9020   13.0     8.4    155    20.7    15.5    134 
 Sage Creek Basin         7850   11.9     6.0    198    13.8    15.3     90 
 Sand Lake               10050   29.9    30.5     98    29.0    26.8    108 
 South Brush Creek        8440    9.2     9.8     94    15.7    16.5     95 
 Tower                   10500   40.5    48.0     84    39.8    42.0     95 
 Webber Springs           9250   22.8    22.0    104    28.1    28.4     99 
 Willow Creek Pass        9540   17.4    13.1    133    17.6    14.4    122 
 Zirkel                   9340   25.6    22.7    113    32.1    29.7    108 
                                                -----                  -----
                Basin Index (%)                  104                    102 
 

SWEETWATER

 Deer Park                9700   17.1    16.3    105    19.5    21.5     91 
 Larsen Creek             9000    8.0    10.3     78    14.9      -M       *
 South Pass               9040   14.3    15.5     92    14.3    18.6     77 
                                                -----                  -----
                Basin Index (%)                   94                     84 
 

LOWER N. PLATTE

 Casper Mtn.              7900   17.6    14.4    122    16.6    16.6    100 
 Laprele Creek            8375    8.2     8.0    102    12.3    13.7     90 
 Reno Hill                8400   16.6    13.9    119    20.2    17.2    117 
 Windy Peak               7900    8.4     6.6    127    12.0    11.6    103 
                                                -----                  -----
                Basin Index (%)                  118                    103 
 

LARAMIE RIVER

 Brooklyn Lake           10240   23.9    22.2    108    25.0    22.8    110 
 Cinnabar Park            9574   19.9    20.1     99    24.4    25.3     96 
 Crow Creek               8330    7.4      .7   1057*   16.6    12.0    138 
 Deadman Hill            10220   22.2    17.0    131    22.2    18.9    117 
 Rawah                    9020   13.0     8.4    155    20.7    15.5    134 
 Roach                    9700   20.2    16.6    122    23.7    20.6    115 
                                                -----                  -----
                Basin Index (%)                  125                    115 
 

S. PLATTE

 Black Mountain           8920   14.7      -M       *   19.7      -M       *
 Crow Creek               8330    7.4      .7   1057*   16.6    12.0    138 
 Deadman Hill            10220   22.2    17.0    131    22.2    18.9    117 
                                                -----                  -----
                Basin Index (%)                  167*                   126 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    6.5     4.3    151    17.2    16.1    107 
 Divide Peak              8880   19.1    18.9    101    26.3    22.8    115 
 Elk River                8700   13.3    15.5     86    19.9    21.2     94 
 Little Snake River       8915   22.8    24.3     94    34.0    31.2    109 
 Old Battle              10000   32.7    32.7    100    30.9    37.0     84 
 Sage Creek Basin         7850   11.9     6.0    198    13.8    15.3     90 
 Sandstone RS             8150    7.9    10.1     78    13.5    19.5     69 
 Whiskey Park             8950   26.6    25.9    103    29.9    29.6    101 
                                                -----                  -----
                Basin Index (%)                  102                     96 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   11.4    12.7     90    13.4    14.1     95 
 Blind Bull Sum           8650   25.3    24.0    105    17.3    20.2     86 
 East Rim Divide          7930    3.8     9.5     40    11.7    12.2     96 
 Elkhart Park G.S.        9400    9.0    11.9     76    12.3    14.0     88 
 Gros Ventre Summit       8750   11.3    13.2     86    11.8    13.7     86 
 Gunsight Pass            9820   13.7    13.6    101    15.5    14.9    104 
 Kendall R.S.             7740     .8     8.4     10    12.3    14.8     83 
 Loomis Park              8240   10.7    13.0     82    17.3    18.0     96 
 New Fork Lake            8340    5.4     8.8     61    11.6    11.3    103 
 Pocket Creek             9360    8.5      -M       *   10.7      -M       *
 Snider Basin             8060    9.5    10.7     89    14.6    14.8     99 
 Spring Creek Divide      9000   26.0    23.5    111    24.5    24.7     99 
 Triple Peak              8500   21.8    19.3    113    28.1    26.3    107 
                                                -----                  -----
                Basin Index (%)                   88                     96 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    9.9      -M       *   13.5      -M       *
 Buck Pasture             9700   11.1      -M       *   18.2      -M       *
 EF Blacks Fork GS        9360    8.3      -M       *   12.5      -M       *
 Hams Fork                7840    7.3     6.7    109    11.7    12.0     98 
 Hewinta                  9519    8.6     8.1    106    15.4    15.0    103 
 Hickerson Park           9145   10.7     5.4    198    13.9    11.0    126 
 Hole-in-Rock             9150    7.1     5.9    120    13.8    10.5    131 
 Indian Creek             9425   22.1    23.3     95    19.5    23.6     83 
 Kelley R.S.              8180   11.6    12.7     91    16.3    18.9     86 
 Spirit Lk               10235   16.7      -M       *   19.4      -M       *
 Steel Creek Park        10200   18.4    16.2    114    20.8    17.8    117 
                                                -----                  -----
                Basin Index (%)                  110                    102 
 

UPPER BEAR RIVER

 Bear River RS            8777     .7      -M       *   12.7      -M       *
 Bug Lake                 7950   15.9    17.2     92    20.3    20.4    100 
 Burts Miller Ranch       8000     .0      -M       *    6.5      -M       *
 Chalk Creek #1           8993   18.2    24.6     74    23.6    26.7     88 
 Hayden Fork              9212    8.0    11.8     68    20.2    22.4     90 
 Kelley R.S.              8180   11.6    12.7     91    16.3    18.9     86 
 Lily Lake                9156   10.3    10.6     97    14.8    18.3     81 
 Monte Cristo             8960   25.5    27.5     93    29.4    27.3    108 
 Salt River Summit        7760    9.4     9.7     97    16.3    17.4     94 
                                                -----                  -----
                Basin Index (%)                   87                     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.