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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 12:38p, 8/18/18
Temperature 54.2°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: JANUARY 1 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   10.3     7.2    143    18.1    10.0    181 
 Black Bear               8170   15.8    17.8     89    25.1    18.0    139 
 Blind Bull Sum           8650   13.5     9.1    148    15.0     9.4    160 
 Cottonwood Creek         7670    9.6     8.5    113    16.4    11.2    146 
 East Rim Divide          7930    7.0     4.3    163     9.5     5.5    173 
 Grand Targhee            9260   23.5    17.5    134    22.2    14.8    150 
 Granite Creek            6770    9.5     6.5    146    15.8     9.5    166 
 Grassy Lake              7265   15.2    12.8    119    26.7    17.1    156 
 Gros Ventre Summit       8750    6.3     6.2    102    10.5     6.2    169 
 Gunsight Pass            9820    7.0     6.1    115    11.3     6.5    174 
 Lewis Lake Divide        7850   12.4    13.3     93    24.1    17.0    142 
 Phillips Bench           8200   11.4    11.0    104    20.9    12.9    162 
 Salt River Summit        7760    5.3     4.9    108    11.2     7.6    147 
 Snake River Station      6920    9.8     6.4    153    18.4    11.0    167 
 Spring Creek Divide      9000   12.2    10.2    120    17.6    10.9    161 
 Thumb Divide             7980    6.4     6.2    103    12.4     8.8    141 
 Togwotee Pass            9580   13.9    11.1    125    17.6    11.6    152 
 Two Ocean Plateau        9240   17.8    12.5    142    19.1    12.7    150 
 Willow Creek             8380   11.3    10.8    105    22.2    15.7    141 
 Younts Peak              8350    7.9     7.0    113    12.6     7.8    162 
                                                -----                  -----
                Basin Index (%)                  119                    155 
 

MADISON-GALLATIN

 Black Bear               8170   15.8    17.8     89    25.1    18.0    139 
 Canyon                   7870    6.8     5.5    124    12.8     7.9    162 
 Madison Plateau          7750    9.2    10.3     89    18.7    12.5    150 
 West Yellowstone         6700    5.3     4.7    113    12.8     7.2    178 
 Whiskey Creek            6800    5.9     6.7     88    13.8     9.8    141 
                                                -----                  -----
                Basin Index (%)                   96                    150 
 

YELLOWSTONE

 Beartooth Lake           9360   11.8    10.0    118     5.8     9.2     63 
 Burnt Mtn                5880    3.7     1.8    206     7.5     6.8    110 
 Canyon                   7870    6.8     5.5    124    12.8     7.9    162 
 Cole Creek               7850    5.4     6.3     86     4.7     6.4     73 
 Evening Star             9200   14.3    11.5    124    20.3    13.2    154 
 Fisher Creek             9100   13.5    14.7     92    18.9    15.1    125 
 Northeast Entrance       7350    4.6     4.1    112     9.8     6.2    158 
 Parker Peak              9400   12.1     9.9    122    15.2     8.6    177 
 Sylvan Lake              8420    9.6     9.2    104    19.7    11.2    176 
 Thumb Divide             7980    6.4     6.2    103    12.4     8.8    141 
 Two Ocean Plateau        9240   17.8    12.5    142    19.1    12.7    150 
 White Mill               8700   11.3     9.9    114    14.6    11.3    129 
 Wolverine                7650    7.1     4.8    148    10.7     6.2    173 
                                                -----                  -----
                Basin Index (%)                  117                    139 
 

WIND RIVER

 Burroughs Creek          8750    8.1      -M       *   10.8      -M       *
 Castle Creek             8400    4.7      -M       *    6.8      -M       *
 Cold Springs             9630    4.2     3.2    131     6.6     5.0    132 
 Deer Park                9700    9.7     6.6    147    13.7     9.0    152 
 Hobbs Park              10100    8.1     6.6    123     8.8     6.2    142 
 Kirwin                   9550    6.8     4.3    158     9.8     5.6    175 
 Little Warm              9370    4.2     4.5     93     9.0     6.2    145 
 Owl Creek                8975    2.6     2.6    100     4.1     2.9    141 
 South Pass               9040    9.2     6.7    137     9.6     8.4    114 
 St. Lawrence Alt         8620    1.6     3.1     52     5.6     4.3    130 
 Togwotee Pass            9580   13.9    11.1    125    17.6    11.6    152 
 Townsend Creek           8700    3.8     4.1     93     6.6     5.8    114 
                                                -----                  -----
                Basin Index (%)                  121                    141 
 

BIGHORN BASIN

 Bald Mtn.                9380   10.4     8.5    122     9.3     7.9    118 
 Bear Trap Meadow         8200    2.3     2.6     88     3.8     4.2     90 
 Bone Springs Div         9350    7.6     7.3    104     8.3     7.2    115 
 Grave Springs            8550    2.9     3.4     85     4.1     5.1     80 
 Kirwin                   9550    6.8     4.3    158     9.8     5.6    175 
 Marquette                8760    3.5      -M       *    6.7      -M       *
 Middle Powder            7760    3.7     5.0     74     3.9     6.0     65 
 Owl Creek                8975    2.6     2.6    100     4.1     2.9    141 
 Powder River Pass        9480    2.5     4.8     52     5.3     6.0     88 
 Shell Creek              9580    8.5     7.2    118     6.9     6.5    106 
 Timber Creek             7950    2.8     2.2    127     4.2     3.9    108 
                                                -----                  -----
                Basin Index (%)                  105                    108 
 

SHOSHONE RIVER

 Blackwater               9780   15.2    10.5    145    19.0    10.0    190 
 Evening Star             9200   14.3    11.5    124    20.3    13.2    154 
 Marquette                8760    3.5      -M       *    6.7      -M       *
 Sylvan Road              7120    6.7     5.4    124    16.6     9.0    184 
 Younts Peak              8350    7.9     7.0    113    12.6     7.8    162 
                                                -----                  -----
                Basin Index (%)                  128                    171 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.3     2.6     88     3.8     4.2     90 
 Cloud Peak Reservoir     9860    5.6     6.3     89     7.6     6.2    123 
 Grave Springs            8550    2.9     3.4     85     4.1     5.1     80 
 Hansen Sawmill           8360    3.5     3.0    117     5.2     4.0    130 
 Middle Powder            7760    3.7     5.0     74     3.9     6.0     65 
 Powder River Pass        9480    2.5     4.8     52     5.3     6.0     88 
 Soldier Park             8720    6.2      -M       *    5.9      -M       *
                                                -----                  -----
                Basin Index (%)                   82                     95 
 

TONGUE RIVER

 Big Goose                7990    4.4     3.7    119     5.4     5.3    102 
 Bone Springs Div         9350    7.6     7.3    104     8.3     7.2    115 
 Burgess Junction         7880    4.2     4.7     89     5.5     5.9     93 
 Dome Lake                8880    5.2     5.4     96     6.6     6.7     99 
 Little Goose             8870    4.8      -M       *    6.9      -M       *
 Sucker Creek             8880    5.2     5.2    100     5.7     6.7     85 
 Tie Creek                6870    3.0     2.1    143     5.9     5.6    105 
                                                -----                  -----
                Basin Index (%)                  104                    100 
 

BELLE FOURCHE

 Cole Canyon              5910    2.7     2.2    123     3.8     4.7     81 
                                                -----                  -----
                Basin Index (%)                  123                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.1     3.2     97     4.7     6.0     78 
 North Rapid Creek        6130    3.4     3.2    106     3.7     5.0     74 
                                                -----                  -----
                Basin Index (%)                  102                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   11.3     9.5    119    12.9    10.9    118 
 Blackhall Mtn            9820   12.7      -M       *   14.8      -M       *
 Columbine                9160   10.6     8.8    120    12.8    11.6    110 
 Divide Peak              8880    6.4     8.5     75     9.1    10.4     88 
 Joe Wright              10120    7.5     9.4     80    13.1    12.1    108 
 Laprele Creek            8375    4.3     4.0    108     4.5     6.0     75 
 Med Bow                 10500   16.4      -M       *   16.6      -M       *
 North French Creek      10130    9.9    11.7     85    11.8    12.1     98 
 Never Summer            10280     -M     8.7       *     -M      -M       *
 Old Battle              10000   11.8    12.6     94    13.7    16.4     84 
 Rawah                    9020    5.4     4.4    123     8.0     7.3    110 
 Sage Creek Basin         7850    4.9     5.8     84     6.3     7.6     83 
 Sand Lake               10050   11.3    11.8     96    11.2    11.2    100 
 South Brush Creek        8440    4.0     4.8     83     5.4     7.2     75 
 Tower                   10500   14.7    18.6     79    18.5    18.5    100 
 Webber Springs           9250    9.1     9.6     95    12.5    12.6     99 
 Willow Creek Pass        9540    7.4     5.4    137     8.6     6.5    132 
 Zirkel                   9340   12.5    10.0    125    16.2    13.8    117 
                                                -----                  -----
                Basin Index (%)                   97                    100 
 

SWEETWATER

 Deer Park                9700    9.7     6.6    147    13.7     9.0    152 
 Larsen Creek             9000    7.4     4.9    151    11.3      -M       *
 South Pass               9040    9.2     6.7    137     9.6     8.4    114 
                                                -----                  -----
                Basin Index (%)                  145                    134 
 

LOWER N. PLATTE

 Casper Mtn.              7900    5.0     5.9     85     5.6     7.4     76 
 Laprele Creek            8375    4.3     4.0    108     4.5     6.0     75 
 Reno Hill                8400     -M     5.8       *     -M     7.2       *
 Windy Peak               7900    3.4     3.1    110     4.4     5.2     85 
                                                -----                  -----
                Basin Index (%)                   98                     78 
 

LARAMIE RIVER

 Brooklyn Lake           10240    8.7     7.9    110     8.9     9.3     96 
 Cinnabar Park            9574    7.6     9.1     84    10.4    11.6     90 
 Crow Creek               8330    2.2     4.5     49     4.1     5.5     75 
 Deadman Hill            10220    8.1     7.2    112     8.2     7.8    105 
 Rawah                    9020    5.4     4.4    123     8.0     7.3    110 
 Roach                    9700    5.8     6.9     84     7.5     9.0     83 
                                                -----                  -----
                Basin Index (%)                   94                     93 
 

S. PLATTE

 Black Mountain           8920    4.3      -M       *    5.6      -M       *
 Crow Creek               8330    2.2     4.5     49     4.1     5.5     75 
 Deadman Hill            10220    8.1     7.2    112     8.2     7.8    105 
                                                -----                  -----
                Basin Index (%)                   88                     92 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    4.1     4.1    100      -M     7.0       *
 Divide Peak              8880    6.4     8.5     75     9.1    10.4     88 
 Elk River                8700    8.3     6.8    122     9.5     9.1    104 
 Little Snake River       8915   11.5     9.0    128    16.8    14.9    113 
 Old Battle              10000   11.8    12.6     94    13.7    16.4     84 
 Sage Creek Basin         7850    4.9     5.8     84     6.3     7.6     83 
 Sandstone RS             8150    5.0     4.4    114     5.7     8.6     66 
 Whiskey Park             8950    9.9     9.6    103    13.3    12.2    109 
                                                -----                  -----
                Basin Index (%)                  102                     94 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    8.4     6.0    140    11.2     6.3    178 
 Blind Bull Sum           8650   13.5     9.1    148    15.0     9.4    160 
 East Rim Divide          7930    7.0     4.3    163     9.5     5.5    173 
 Elkhart Park G.S.        9400    5.8     5.7    102    11.3     6.4    177 
 Gros Ventre Summit       8750    6.3     6.2    102    10.5     6.2    169 
 Gunsight Pass            9820    7.0     6.1    115    11.3     6.5    174 
 Kendall R.S.             7740    7.6     4.8    158    11.8     6.5    182 
 Loomis Park              8240    9.5     6.6    144    14.8     8.2    180 
 New Fork Lake            8340    6.3     4.5    140     7.1     5.1    139 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    6.2     5.2    119    11.5     6.6    174 
 Spring Creek Divide      9000   12.2    10.2    120    17.6    10.9    161 
 Triple Peak              8500   14.0     8.3    169    18.9    11.0    172 
                                                -----                  -----
                Basin Index (%)                  135                    170 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    4.5      -M       *    6.6      -M       *
 Buck Pasture             9700    6.7      -M       *    9.9      -M       *
 EF Blacks Fork GS        9360    6.7      -M       *    6.0      -M       *
 Hams Fork                7840    4.9     4.6    107     8.6     5.2    165 
 Hewinta                  9519    4.6     3.8    121     6.8     6.4    106 
 Hickerson Park           9145    4.2     2.9    145     4.4     5.0     88 
 Hole-in-Rock             9150    2.9     2.9    100     4.8     4.6    104 
 Indian Creek             9425   11.6    10.0    116    15.9    10.0    159 
 Kelley R.S.              8180    8.0     6.2    129    13.6     8.5    160 
 Spirit Lk               10235    6.4      -M       *    8.4      -M       *
 Steel Creek Park        10200    6.9     6.2    111     8.8     7.5    117 
                                                -----                  -----
                Basin Index (%)                  118                    133 
 

UPPER BEAR RIVER

 Bear River RS            8777    4.5      -M       *    6.6      -M       *
 Bug Lake                 7950    8.1     6.3    129    11.8     9.0    131 
 Burts Miller Ranch       8000    2.1      -M       *    3.2      -M       *
 Chalk Creek #1           8993   10.3     9.7    106    12.9    11.6    111 
 Hayden Fork              9212    7.8     5.9    132    12.2     9.6    127 
 Kelley R.S.              8180    8.0     6.2    129    13.6     8.5    160 
 Lily Lake                9156    5.1     5.2     98     7.8     8.0     98 
 Monte Cristo             8960   10.3    10.1    102    14.1    11.8    119 
 Salt River Summit        7760    5.3     4.9    108    11.2     7.6    147 
                                                -----                  -----
                Basin Index (%)                  114                    126 

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


 -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.