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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 12:53p, 8/15/18
Temperature 74.2°F
Wind 4.0 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 26 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   20.6    10.6    194    41.4    22.2    186 
 Black Bear               8170   50.1    37.0    135    58.0    40.9    142 
 Blind Bull Sum           8650   45.8    24.2    189    38.0    20.8    183 
 Cottonwood Creek         7670   28.2    17.0    166    41.7    26.6    157 
 East Rim Divide          7930   10.6     8.9    119    22.1    12.5    177 
 Grand Targhee            9260   54.8    43.3    127    48.2    33.5    144 
 Granite Creek            6770   21.8     9.3    234    37.4    20.7    181 
 Grassy Lake              7265   37.6    30.1    125    58.9    38.4    153 
 Gros Ventre Summit       8750   20.9    12.3    170    25.5    14.1    181 
 Gunsight Pass            9820     -M    13.4       *   27.0    15.5    174 
 Lewis Lake Divide        7850   47.1    30.7    153    58.3    37.7    155 
 Phillips Bench           8200   40.2    25.5    158    49.2    29.9    165 
 Salt River Summit        7760   17.2     8.4    205      -M    17.9       *
 Snake River Station      6920   13.6     9.8    139    38.1    24.2    157 
 Spring Creek Divide      9000   43.0    23.9    180    42.7    25.5    167 
 Thumb Divide             7980   19.5    14.1    138    29.5    20.3    145 
 Togwotee Pass            9580   35.5    24.5    145    41.4    26.5    156 
 Two Ocean Plateau        9240     -M    29.2       *     -M    29.3       *
 Willow Creek             8380   28.4    25.3    112    55.0    36.5    151 
 Younts Peak              8350   24.2    15.1    160    32.8    17.1    192 
                                                -----                  -----
                Basin Index (%)                  151                    161 
 

MADISON-GALLATIN

 Black Bear               8170   50.1    37.0    135    58.0    40.9    142 
 Canyon                   7870   18.1    11.6    156    27.8    17.5    159 
 Madison Plateau          7750   29.2    22.4    130    39.3    28.2    139 
 West Yellowstone         6700     .7     4.7     15    25.6    15.5    165 
 Whiskey Creek            6800   12.6    15.4     82    29.1    21.8    133 
                                                -----                  -----
                Basin Index (%)                  122                    145 
 

YELLOWSTONE

 Beartooth Lake           9360   35.2    23.5    150    30.2    21.3    142 
 Burnt Mtn                5880     .0      .0       *   16.5    14.9    111 
 Canyon                   7870   18.1    11.6    156    27.8    17.5    159 
 Cole Creek               7850   13.7    16.3     84    11.1    15.5     72 
 Evening Star             9200   40.3    24.6    164    47.6    29.6    161 
 Fisher Creek             9100   46.7    33.2    141    51.1    34.3    149 
 Northeast Entrance       7350    3.3     4.9     67    22.3    13.4    166 
 Parker Peak              9400   40.8    21.8    187    38.4    19.4    198 
 Sylvan Lake              8420   25.8    20.3    127    40.6    24.3    167 
 Thumb Divide             7980   19.5    14.1    138    29.5    20.3    145 
 Two Ocean Plateau        9240     -M    29.2       *     -M    29.3       *
 White Mill               8700   40.0    23.8    168    38.8    25.6    152 
 Wolverine                7650    3.0     5.2     58    22.7    13.3    171 
                                                -----                  -----
                Basin Index (%)                  144                    151 
 

WIND RIVER

 Burroughs Creek          8750   19.9      -M       *   28.4      -M       *
 Castle Creek             8400    8.0      -M       *   17.1      -M       *
 Cold Springs             9630   15.2     2.7    563    20.8    11.7    178 
 Deer Park                9700   34.7    16.3    213    41.2    22.8    181 
 Hobbs Park              10100   32.1    15.7    204    31.3    15.9    197 
 Kirwin                   9550   24.3    10.2    238    27.4    13.1    209 
 Little Warm              9370   18.8     9.4    200    25.9    14.6    177 
 Owl Creek                8975    8.2     2.3    357    14.4     7.4    195 
 South Pass               9040   31.8    15.2    209    30.8    19.6    157 
 St. Lawrence Alt         8620    7.7     4.6    167    18.9    10.9    173 
 Togwotee Pass            9580   35.5    24.5    145    41.4    26.5    156 
 Townsend Creek           8700   17.5     8.7    201    25.2    14.3    176 
                                                -----                  -----
                Basin Index (%)                  206                    177 
 

BIGHORN BASIN

 Bald Mtn.                9380   22.4    20.5    109    19.5    18.9    103 
 Bear Trap Meadow         8200    6.5     1.7    382    13.7    10.0    137 
 Bone Springs Div         9350   22.4    16.4    137    20.0    17.4    115 
 Grave Springs            8550   10.1     9.2    110    11.9    12.3     97 
 Kirwin                   9550   24.3    10.2    238    27.4    13.1    209 
 Marquette                8760   16.7      -M       *   20.7      -M       *
 Middle Powder            7760   12.4    12.2    102    13.1    13.5     97 
 Owl Creek                8975    8.2     2.3    357    14.4     7.4    195 
 Powder River Pass        9480   10.6    10.1    105    16.2    14.3    113 
 Shell Creek              9580   19.5    15.9    123    17.1    15.5    110 
 Timber Creek             7950    6.9     3.6    192    13.3     9.2    145 
                                                -----                  -----
                Basin Index (%)                  140                    127 
 

SHOSHONE RIVER

 Blackwater               9780   40.7    24.6    165    45.0    22.7    198 
 Evening Star             9200   40.3    24.6    164    47.6    29.6    161 
 Marquette                8760   16.7      -M       *   20.7      -M       *
 Sylvan Road              7120     .0     7.9      0    31.9    18.0    177 
 Younts Peak              8350   24.2    15.1    160    32.8    17.1    192 
                                                -----                  -----
                Basin Index (%)                  146                    180 
 

POWDER RIVER

 Bear Trap Meadow         8200    6.5     1.7    382    13.7    10.0    137 
 Cloud Peak Reservoir     9860   19.8    16.4    121    24.1    15.8    153 
 Grave Springs            8550   10.1     9.2    110    11.9    12.3     97 
 Hansen Sawmill           8360   14.0     4.1    341    18.9    10.3    183 
 Middle Powder            7760   12.4    12.2    102    13.1    13.5     97 
 Powder River Pass        9480   10.6    10.1    105    16.2    14.3    113 
 Soldier Park             8720   16.5      -M       *   18.4      -M       *
                                                -----                  -----
                Basin Index (%)                  137                    128 
 

TONGUE RIVER

 Big Goose                7990   13.4     9.1    147    17.6    13.5    130 
 Bone Springs Div         9350   22.4    16.4    137    20.0    17.4    115 
 Burgess Junction         7880   12.0    12.4     97    14.0    14.1     99 
 Dome Lake                8880   17.9    11.8    152    19.9    15.6    128 
 Little Goose             8870   16.8      -M       *   21.7      -M       *
 Sucker Creek             8880   14.5    12.6    115    16.6    16.6    100 
 Tie Creek                6870    2.2     3.2     69    17.1    13.6    126 
                                                -----                  -----
                Basin Index (%)                  126                    116 
 

BELLE FOURCHE

 Cole Canyon              5910    1.5      .6    250    10.9    11.0     99 
                                                -----                  -----
                Basin Index (%)                  250                     99 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .2     3.2      6    10.7    13.7     78 
 North Rapid Creek        6130     .2     3.1      6     9.3    11.7     79 
                                                -----                  -----
                Basin Index (%)                    6                     79 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   25.1    21.9    115    28.3    25.6    111 
 Blackhall Mtn            9820   35.2      -M       *   40.1      -M       *
 Columbine                9160   11.1    20.3     55    29.7    27.8    107 
 Divide Peak              8880   10.6    18.0     59    24.3    23.7    103 
 Joe Wright              10120   17.6    23.4     75    31.5    29.0    109 
 Laprele Creek            8375    6.1     7.2     85    13.9    14.5     96 
 Med Bow                 10500   37.4      -M       *   38.3      -M       *
 North French Creek      10130   25.8    32.8     79    30.8    29.8    103 
 Never Summer            10280   24.0    21.3    113    21.6      -M       *
 Old Battle              10000   38.0    34.3    111    40.7    38.2    107 
 Rawah                    9020    5.3     8.0     66    19.5    16.7    117 
 Sage Creek Basin         7850     -M     2.2       *   17.5    15.7    111 
 Sand Lake               10050   31.4    31.1    101    30.1    28.1    107 
 South Brush Creek        8440     .3    10.0      3    14.3    17.2     83 
 Tower                   10500   42.1    49.5     85    47.6    43.6    109 
 Webber Springs           9250   21.9    21.9    100    35.3    29.2    121 
 Willow Creek Pass        9540   18.4    13.8    133    19.8    15.2    130 
 Zirkel                   9340   23.2    22.1    105    44.7    30.4    147 
                                                -----                  -----
                Basin Index (%)                   90                    111 
 

SWEETWATER

 Deer Park                9700   34.7    16.3    213    41.2    22.8    181 
 Larsen Creek             9000   12.9     9.7    133    25.3      -M       *
 South Pass               9040   31.8    15.2    209    30.8    19.6    157 
                                                -----                  -----
                Basin Index (%)                  193                    170 
 

LOWER N. PLATTE

 Casper Mtn.              7900   11.1    14.2     78    16.6    17.3     96 
 Laprele Creek            8375    6.1     7.2     85    13.9    14.5     96 
 Reno Hill                8400   12.3    13.7     90    17.0    18.1     94 
 Windy Peak               7900    3.8     5.8     66    13.0    12.5    104 
                                                -----                  -----
                Basin Index (%)                   81                     97 
 

LARAMIE RIVER

 Brooklyn Lake           10240   19.9    22.9     87    24.6    23.9    103 
 Cinnabar Park            9574   12.7    20.0     64    24.3    26.3     92 
 Crow Creek               8330     .0      .0       *   11.4    12.9     88 
 Deadman Hill            10220   20.7    18.3    113    23.0    20.0    115 
 Rawah                    9020    5.3     8.0     66    19.5    16.7    117 
 Roach                    9700   15.0    16.9     89    23.2    21.6    107 
                                                -----                  -----
                Basin Index (%)                   85                    104 
 

S. PLATTE

 Black Mountain           8920    7.7      -M       *   14.9      -M       *
 Crow Creek               8330     .0      .0       *   11.4    12.9     88 
 Deadman Hill            10220   20.7    18.3    113    23.0    20.0    115 
                                                -----                  -----
                Basin Index (%)                  113*                   105 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0     1.6      0    18.9    16.7    113 
 Divide Peak              8880   10.6    18.0     59    24.3    23.7    103 
 Elk River                8700    5.0    14.4     35    22.3    22.1    101 
 Little Snake River       8915   21.8    23.2     94    41.4    31.8    130 
 Old Battle              10000   38.0    34.3    111    40.7    38.2    107 
 Sage Creek Basin         7850     -M     2.2       *   17.5    15.7    111 
 Sandstone RS             8150     -M     8.2       *   17.6    20.2     87 
 Whiskey Park             8950   22.8    25.6     89    33.1    30.7    108 
                                                -----                  -----
                Basin Index (%)                   84                    108 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   22.6    12.0    188    25.3    14.7    172 
 Blind Bull Sum           8650   45.8    24.2    189    38.0    20.8    183 
 East Rim Divide          7930   10.6     8.9    119    22.1    12.5    177 
 Elkhart Park G.S.        9400   20.5    11.8    174    25.8    14.5    178 
 Gros Ventre Summit       8750   20.9    12.3    170    25.5    14.1    181 
 Gunsight Pass            9820     -M    13.4       *   27.0    15.5    174 
 Kendall R.S.             7740   15.3     6.3    243    30.2    15.0    201 
 Loomis Park              8240   24.0    11.6    207    33.6    18.4    183 
 New Fork Lake            8340   12.6     7.2    175    19.1    11.6    165 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   16.2    10.0    162    28.4    15.2    187 
 Spring Creek Divide      9000   43.0    23.9    180    42.7    25.5    167 
 Triple Peak              8500   35.5    18.9    188    43.2    27.1    159 
                                                -----                  -----
                Basin Index (%)                  182                    176 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    4.8      -M       *   18.0      -M       *
 Buck Pasture             9632   15.7      -M       *   26.0      -M       *
 EF Blacks Fork GS        9360   11.7      -M       *   20.0      -M       *
 Hams Fork                7840    9.6     4.6    209    23.1    12.6    183 
 Hewinta                  9500    6.6     6.5    102    19.8    15.6    127 
 Hickerson Park           9122    4.4     5.1     86    14.2    11.6    122 
 Hole-in-Rock             9168    4.7     4.6    102    15.0    11.1    135 
 Indian Creek             9425   42.1    23.8    177    43.6    24.3    179 
 Kelley R.S.              8180   23.7    11.8    201    32.7    19.6    167 
 Spirit Lk               10235   14.7      -M       *   20.1      -M       *
 Steel Creek Park        10158   21.3    16.6    128    23.9    18.5    129 
                                                -----                  -----
                Basin Index (%)                  154                    152 
 

UPPER BEAR RIVER

 Bear River RS            8777    1.5      -M       *   20.5      -M       *
 Bug Lake                 7987   31.9    16.2    197    36.2    21.1    172 
 Burts Miller Ranch       8000     .0      -M       *   11.5      -M       *
 Chalk Creek #1           9171   33.0    24.7    134    39.6    27.7    143 
 Hayden Fork              9130   14.5    10.4    139    32.6    23.1    141 
 Kelley R.S.              8180   23.7    11.8    201    32.7    19.6    167 
 Lily Lake                9133   12.0     9.8    122    22.2    19.0    117 
 Monte Cristo             8932   37.2    27.3    136    43.0    28.4    151 
 Salt River Summit        7760   17.2     8.4    205      -M    17.9       *
                                                -----                  -----
                Basin Index (%)                  156                    149 

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


 -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.