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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 12:23p, 5/21/18
Temperature 68.7°F
Wind 2.0 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 MONDAY: JANUARY 9 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   12.0     8.3    145    19.8    11.2    177 
 Black Bear               8170   17.3    19.4     89    26.9    20.0    134 
 Blind Bull Sum           8650   16.2    10.8    150    15.7    10.3    152 
 Cottonwood Creek         7670   11.6     9.2    126    18.7    12.6    148 
 East Rim Divide          7930    8.4     5.0    168    11.0     6.2    177 
 Grand Targhee            9260   25.7    20.0    128    23.6    17.1    138 
 Granite Creek            6770   11.8     7.3    162    18.0    10.7    168 
 Grassy Lake              7265   17.3    14.8    117    29.1    19.2    152 
 Gros Ventre Summit       8750    7.5     6.9    109    11.7     6.7    175 
 Gunsight Pass            9820    8.2     6.9    119    12.5     7.2    174 
 Lewis Lake Divide        7850   14.6    15.0     97    26.0    18.8    138 
 Phillips Bench           8200   13.6    12.7    107    23.1    14.6    158 
 Salt River Summit        7760    7.2     5.5    131    13.2     8.5    155 
 Snake River Station      6920   11.3     7.8    145    20.1    12.4    162 
 Spring Creek Divide      9000   14.8    11.0    135    19.9    12.3    162 
 Thumb Divide             7980    7.6     7.1    107    13.6     9.8    139 
 Togwotee Pass            9580   15.4    12.2    126    19.1    12.9    148 
 Two Ocean Plateau        9240   19.1    14.2    135    20.3    14.1    144 
 Willow Creek             8380   13.7    12.5    110    24.7    17.4    142 
 Younts Peak              8350    9.3     7.5    124    13.9     8.6    162 
                                                -----                  -----
                Basin Index (%)                  123                    152 
 

MADISON-GALLATIN

 Black Bear               8170   17.3    19.4     89    26.9    20.0    134 
 Canyon                   7870    7.6     6.4    119    13.8     8.7    159 
 Madison Plateau          7750   10.2    11.1     92    20.0    14.1    142 
 West Yellowstone         6700    6.4     5.5    116    13.7     7.9    173 
 Whiskey Creek            6800    6.8     7.8     87    14.1    10.9    129 
                                                -----                  -----
                Basin Index (%)                   96                    144 
 

YELLOWSTONE

 Beartooth Lake           9360   13.0    11.1    117    10.3    10.3    100 
 Burnt Mtn                5880    3.9     1.9    205     7.9     7.1    111 
 Canyon                   7870    7.6     6.4    119    13.8     8.7    159 
 Cole Creek               7850    5.5     6.6     83     5.2     6.7     78 
 Evening Star             9200   15.4    12.8    120    21.6    14.7    147 
 Fisher Creek             9100   15.0    16.8     89    20.3    16.8    121 
 Northeast Entrance       7350    5.2     4.9    106    10.5     6.8    154 
 Parker Peak              9400   13.6    11.1    123    16.6     9.4    177 
 Sylvan Lake              8420   10.4    10.4    100    20.9    12.2    171 
 Thumb Divide             7980    7.6     7.1    107    13.6     9.8    139 
 Two Ocean Plateau        9240   19.1    14.2    135    20.3    14.1    144 
 White Mill               8700   12.3    11.4    108    15.9    12.6    126 
 Wolverine                7650    7.7     5.5    140    11.4     6.8    168 
                                                -----                  -----
                Basin Index (%)                  113                    138 
 

WIND RIVER

 Burroughs Creek          8750    9.5      -M       *   12.0      -M       *
 Castle Creek             8400    5.6      -M       *    7.8      -M       *
 Cold Springs             9630    5.0     3.6    139     7.6     5.3    143 
 Deer Park                9700   11.5     7.0    164    15.4    10.0    154 
 Hobbs Park              10100    9.5     7.1    134    10.0     6.7    149 
 Kirwin                   9550    7.8     4.7    166    10.7     6.1    175 
 Little Warm              9370    5.3     5.0    106    10.2     6.7    152 
 Owl Creek                8975    3.1     2.8    111     4.5     3.1    145 
 South Pass               9040   10.6     7.1    149    10.5     9.1    115 
 St. Lawrence Alt         8620    2.6     3.3     79     6.4     4.6    139 
 Togwotee Pass            9580   15.4    12.2    126    19.1    12.9    148 
 Townsend Creek           8700    4.9     4.2    117     7.8     6.2    126 
                                                -----                  -----
                Basin Index (%)                  133                    145 
 

BIGHORN BASIN

 Bald Mtn.                9380   10.7     9.4    114     9.7     8.7    111 
 Bear Trap Meadow         8200    2.8     2.7    104     4.5     4.4    102 
 Bone Springs Div         9350    8.0     7.9    101     8.6     7.8    110 
 Grave Springs            8550    3.2     3.9     82     4.7     5.5     85 
 Kirwin                   9550    7.8     4.7    166    10.7     6.1    175 
 Marquette                8760    3.9      -M       *    7.5      -M       *
 Middle Powder            7760    4.0     5.4     74     5.0     6.4     78 
 Owl Creek                8975    3.1     2.8    111     4.5     3.1    145 
 Powder River Pass        9480    2.9     5.4     54     6.1     6.6     92 
 Shell Creek              9580    8.9     7.5    119     7.4     7.2    103 
 Timber Creek             7950    3.2     2.3    139     4.5     4.1    110 
                                                -----                  -----
                Basin Index (%)                  105                    110 
 

SHOSHONE RIVER

 Blackwater               9780   16.4    11.7    140    20.3    10.9    186 
 Evening Star             9200   15.4    12.8    120    21.6    14.7    147 
 Marquette                8760    3.9      -M       *    7.5      -M       *
 Sylvan Road              7120    7.5     6.0    125    17.4     9.9    176 
 Younts Peak              8350    9.3     7.5    124    13.9     8.6    162 
                                                -----                  -----
                Basin Index (%)                  128                    166 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.8     2.7    104     4.5     4.4    102 
 Cloud Peak Reservoir     9860    6.0     6.7     90     8.1     6.7    121 
 Grave Springs            8550    3.2     3.9     82     4.7     5.5     85 
 Hansen Sawmill           8360    3.9     3.3    118     5.7     4.3    133 
 Middle Powder            7760    4.0     5.4     74     5.0     6.4     78 
 Powder River Pass        9480    2.9     5.4     54     6.1     6.6     92 
 Soldier Park             8720    6.7      -M       *    6.2      -M       *
                                                -----                  -----
                Basin Index (%)                   83                    101 
 

TONGUE RIVER

 Big Goose                7990    4.7     4.0    118     5.7     5.6    102 
 Bone Springs Div         9350    8.0     7.9    101     8.6     7.8    110 
 Burgess Junction         7880    4.5     5.1     88     6.3     6.3    100 
 Dome Lake                8880    5.5     5.7     96     7.2     7.2    100 
 Little Goose             8870    5.0      -M       *    7.2      -M       *
 Sucker Creek             8880    5.4     5.8     93     6.3     7.2     88 
 Tie Creek                6870    3.3     2.3    143     6.3     6.0    105 
                                                -----                  -----
                Basin Index (%)                  102                    101 
 

BELLE FOURCHE

 Cole Canyon              5910    3.0     2.4    125     4.1     4.9     84 
                                                -----                  -----
                Basin Index (%)                  125                     84 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.5     3.8     92     4.6     6.5     71 
 North Rapid Creek        6130    3.7     3.4    109     4.0     5.4     74 
                                                -----                  -----
                Basin Index (%)                  100                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   14.6    10.6    138    15.8    12.1    131 
 Blackhall Mtn            9820   17.1      -M       *   18.9      -M       *
 Columbine                9160   14.2    10.6    134    16.6    12.9    129 
 Divide Peak              8880    9.0     9.6     94    11.6    11.3    103 
 Joe Wright              10120   10.7    10.4    103    16.3    13.3    123 
 Laprele Creek            8375    5.5     4.4    125     5.4     6.4     84 
 Med Bow                 10500   20.2      -M       *   19.9      -M       *
 North French Creek      10130   12.8    12.9     99    14.6    13.4    109 
 Never Summer            10280     -M    10.0       *     -M      -M       *
 Old Battle              10000   16.3    14.6    112    18.0    18.1     99 
 Rawah                    9020    7.5     5.1    147    10.3     8.0    129 
 Sage Creek Basin         7850    7.5     6.6    114     8.0     8.2     98 
 Sand Lake               10050   14.4    13.3    108    14.0    12.3    114 
 South Brush Creek        8440    5.7     5.5    104     7.1     7.9     90 
 Tower                   10500   20.6    20.1    102    23.7    20.4    116 
 Webber Springs           9250   13.0    11.0    118    16.5    13.7    120 
 Willow Creek Pass        9540    9.3     6.0    155    10.4     7.0    149 
 Zirkel                   9340   18.9    12.8    148    21.7    15.6    139 
                                                -----                  -----
                Basin Index (%)                  117                    116 
 

SWEETWATER

 Deer Park                9700   11.5     7.0    164    15.4    10.0    154 
 Larsen Creek             9000    8.9     5.5    162    12.7      -M       *
 South Pass               9040   10.6     7.1    149    10.5     9.1    115 
                                                -----                  -----
                Basin Index (%)                  158                    136 
 

LOWER N. PLATTE

 Casper Mtn.              7900    5.6     6.5     86     6.0     7.9     76 
 Laprele Creek            8375    5.5     4.4    125     5.4     6.4     84 
 Reno Hill                8400     -M     6.3       *     -M     7.7       *
 Windy Peak               7900    4.1     3.2    128     5.2     5.5     95 
                                                -----                  -----
                Basin Index (%)                  108                     84 
 

LARAMIE RIVER

 Brooklyn Lake           10240   11.9     9.4    127    11.2    10.2    110 
 Cinnabar Park            9574   10.1    10.7     94    12.9    13.3     97 
 Crow Creek               8330    3.8     4.8     79     5.4     5.9     92 
 Deadman Hill            10220   10.5     7.7    136    10.5     8.5    124 
 Rawah                    9020    7.5     5.1    147    10.3     8.0    129 
 Roach                    9700    8.2     7.7    106     9.9     9.8    101 
                                                -----                  -----
                Basin Index (%)                  115                    108 
 

S. PLATTE

 Black Mountain           8920    5.6      -M       *    6.9      -M       *
 Crow Creek               8330    3.8     4.8     79     5.4     5.9     92 
 Deadman Hill            10220   10.5     7.7    136    10.5     8.5    124 
                                                -----                  -----
                Basin Index (%)                  114                    110 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    6.8     4.9    139     9.6     7.9    122 
 Divide Peak              8880    9.0     9.6     94    11.6    11.3    103 
 Elk River                8700   11.4     8.2    139    12.2    10.2    120 
 Little Snake River       8915   15.7    10.8    145    21.0    16.5    127 
 Old Battle              10000   16.3    14.6    112    18.0    18.1     99 
 Sage Creek Basin         7850    7.5     6.6    114     8.0     8.2     98 
 Sandstone RS             8150    7.8     5.6    139     8.2     9.6     85 
 Whiskey Park             8950   14.6    10.9    134    17.6    13.7    128 
                                                -----                  -----
                Basin Index (%)                  125                    111 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   10.2     6.8    150    12.9     7.0    184 
 Blind Bull Sum           8650   16.2    10.8    150    15.7    10.3    152 
 East Rim Divide          7930    8.4     5.0    168    11.0     6.2    177 
 Elkhart Park G.S.        9400    7.3     5.9    124    12.8     7.0    183 
 Gros Ventre Summit       8750    7.5     6.9    109    11.7     6.7    175 
 Gunsight Pass            9820    8.2     6.9    119    12.5     7.2    174 
 Kendall R.S.             7740    9.2     5.6    164    13.6     7.3    186 
 Loomis Park              8240   11.4     7.1    161    16.5     9.1    181 
 New Fork Lake            8340    7.6     5.1    149     8.1     5.8    140 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    8.3     6.0    138    13.3     7.4    180 
 Spring Creek Divide      9000   14.8    11.0    135    19.9    12.3    162 
 Triple Peak              8500   16.5     9.7    170    21.3    12.5    170 
                                                -----                  -----
                Basin Index (%)                  145                    171 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    6.3      -M       *    8.0      -M       *
 Buck Pasture             9700    9.1      -M       *   12.1      -M       *
 EF Blacks Fork GS        9360    8.7      -M       *    6.6      -M       *
 Hams Fork                7840    7.2     5.2    138    10.9     5.8    188 
 Hewinta                  9519    6.4     4.3    149     8.7     7.1    123 
 Hickerson Park           9145    5.3     3.1    171     5.7     5.3    108 
 Hole-in-Rock             9150    4.2     3.2    131     6.0     5.0    120 
 Indian Creek             9425   14.6    11.1    132    16.6    11.1    150 
 Kelley R.S.              8180   10.2     6.9    148    15.8     9.4    168 
 Spirit Lk               10235    7.6      -M       *    9.4      -M       *
 Steel Creek Park        10200    8.8     6.6    133    10.5     8.2    128 
                                                -----                  -----
                Basin Index (%)                  140                    143 
 

UPPER BEAR RIVER

 Bear River RS            8777    6.4      -M       *    8.4      -M       *
 Bug Lake                 7950   11.7     7.2    162    15.0    10.0    150 
 Burts Miller Ranch       8000    3.4      -M       *    4.5      -M       *
 Chalk Creek #1           8993   13.8    10.8    128      -M    12.8       *
 Hayden Fork              9212   10.6     6.5    163    15.0    10.6    142 
 Kelley R.S.              8180   10.2     6.9    148    15.8     9.4    168 
 Lily Lake                9156    7.5     5.7    132     9.7     8.8    110 
 Monte Cristo             8960   13.3    12.1    110    16.2    13.2    123 
 Salt River Summit        7760    7.2     5.5    131    13.2     8.5    155 
                                                -----                  -----
                Basin Index (%)                  136                    140 

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


 -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.