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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 11:57a, 8/16/18
Temperature 77.3°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 THURSDAY: DECEMBER 22 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    9.4     6.0    157    17.0     8.7    195 
 Black Bear               8170   13.8    14.7     94    23.1    15.6    148 
 Blind Bull Sum           8650   12.5     7.9    158    14.2     8.1    175 
 Cottonwood Creek         7670    8.8     7.2    122    15.6     9.7    161 
 East Rim Divide          7930    5.0     3.6    139     8.3     4.8    173 
 Grand Targhee            9260   21.5    14.8    145    21.0    13.0    162 
 Granite Creek            6770    7.9     4.9    161    14.4     8.0    180 
 Grassy Lake              7265   13.3    10.4    128    24.9    14.4    173 
 Gros Ventre Summit       8750    5.3     5.0    106     9.4     5.4    174 
 Gunsight Pass            9820    6.2     4.5    138    10.4     5.5    189 
 Lewis Lake Divide        7850   11.1    10.7    104    22.7    14.5    157 
 Phillips Bench           8200    9.2     8.9    103    18.4    10.9    169 
 Salt River Summit        7760    4.6     3.9    118    10.5     6.5    162 
 Snake River Station      6920    8.8     5.3    166    17.6     9.5    185 
 Spring Creek Divide      9000   11.0     8.2    134    16.3     9.4    173 
 Thumb Divide             7980    5.6     5.2    108    11.6     7.6    153 
 Togwotee Pass            9580   12.6     9.7    130    16.2    10.1    160 
 Two Ocean Plateau        9240   16.8    10.9    154    18.2    11.2    162 
 Willow Creek             8380   10.4     9.2    113    21.2    13.6    156 
 Younts Peak              8350    6.9     5.9    117    11.5     6.7    172 
                                                -----                  -----
                Basin Index (%)                  128                    167 
 

MADISON-GALLATIN

 Black Bear               8170   13.8    14.7     94    23.1    15.6    148 
 Canyon                   7870    6.0     4.5    133    12.0     6.8    176 
 Madison Plateau          7750    7.5     8.9     84    17.4    10.6    164 
 West Yellowstone         6700    4.1     3.8    108    11.7     6.0    195 
 Whiskey Creek            6800    4.5     5.6     80    12.3     8.5    145 
                                                -----                  -----
                Basin Index (%)                   96                    161 
 

YELLOWSTONE

 Beartooth Lake           9360   11.1     8.7    128      -M     8.0       *
 Burnt Mtn                5880    3.0     1.8    167     6.7     6.2    108 
 Canyon                   7870    6.0     4.5    133    12.0     6.8    176 
 Cole Creek               7850    4.6     5.7     81     4.6     6.0     77 
 Evening Star             9200   13.2     9.6    138    19.3    11.6    166 
 Fisher Creek             9100   12.6    13.1     96    17.9    13.1    137 
 Northeast Entrance       7350    4.2     2.9    145     9.4     5.5    171 
 Parker Peak              9400     -M     8.5       *   14.5     7.6    191 
 Sylvan Lake              8420    9.0     8.0    112    19.0     9.9    192 
 Thumb Divide             7980    5.6     5.2    108    11.6     7.6    153 
 Two Ocean Plateau        9240   16.8    10.9    154    18.2    11.2    162 
 White Mill               8700   10.5     8.7    121    13.8     9.9    139 
 Wolverine                7650     -M     3.9       *     -M     5.6       *
                                                -----                  -----
                Basin Index (%)                  122                    154 
 

WIND RIVER

 Burroughs Creek          8750    7.4      -M       *    9.7      -M       *
 Castle Creek             8400    4.1      -M       *    6.1      -M       *
 Cold Springs             9630    3.6     2.9    124     6.0     4.5    133 
 Deer Park                9700    7.8     5.2    150    11.6     7.6    153 
 Hobbs Park              10100     -M     6.0       *    7.8     5.6    139 
 Kirwin                   9550    6.1     4.1    149     8.9     5.0    178 
 Little Warm              9370    3.4     3.9     87     8.1     5.5    147 
 Owl Creek                8975    2.1     2.3     91     3.6     2.6    138 
 South Pass               9040    7.6     5.6    136     8.3     7.4    112 
 St. Lawrence Alt         8620    1.4     2.6     54     5.2     4.0    130 
 Togwotee Pass            9580   12.6     9.7    130    16.2    10.1    160 
 Townsend Creek           8700    3.0     3.4     88     5.7     5.3    108 
                                                -----                  -----
                Basin Index (%)                  120                    141 
 

BIGHORN BASIN

 Bald Mtn.                9380    9.2     7.3    126     8.1     7.0    116 
 Bear Trap Meadow         8200    1.4     2.3     61     3.3     3.9     85 
 Bone Springs Div         9350    6.3     6.6     95     7.2     6.4    112 
 Grave Springs            8550    2.2     2.8     79     3.7     4.6     80 
 Kirwin                   9550    6.1     4.1    149     8.9     5.0    178 
 Marquette                8760    3.3      -M       *    6.4      -M       *
 Middle Powder            7760    2.8     4.3     65     3.6     5.6     64 
 Owl Creek                8975    2.1     2.3     91     3.6     2.6    138 
 Powder River Pass        9480    1.6     4.0     40     4.5     5.3     85 
 Shell Creek              9580    6.8     6.5    105     6.0     5.9    102 
 Timber Creek             7950    2.5     1.9    132     4.0     3.7    108 
                                                -----                  -----
                Basin Index (%)                   97                    106 
 

SHOSHONE RIVER

 Blackwater               9780   14.6     9.3    157    17.8     9.0    198 
 Evening Star             9200   13.2     9.6    138    19.3    11.6    166 
 Marquette                8760    3.3      -M       *    6.4      -M       *
 Sylvan Road              7120    6.2     4.5    138    16.0     8.1    198 
 Younts Peak              8350    6.9     5.9    117    11.5     6.7    172 
                                                -----                  -----
                Basin Index (%)                  140                    182 
 

POWDER RIVER

 Bear Trap Meadow         8200    1.4     2.3     61     3.3     3.9     85 
 Cloud Peak Reservoir     9860    3.5     5.3     66     5.6     5.8     97 
 Grave Springs            8550    2.2     2.8     79     3.7     4.6     80 
 Hansen Sawmill           8360    2.4     2.6     92     4.1     3.7    111 
 Middle Powder            7760    2.8     4.3     65     3.6     5.6     64 
 Powder River Pass        9480    1.6     4.0     40     4.5     5.3     85 
 Soldier Park             8720    2.9      -M       *    4.6      -M       *
                                                -----                  -----
                Basin Index (%)                   65                     86 
 

TONGUE RIVER

 Big Goose                7990    3.2     3.2    100     4.4     4.9     90 
 Bone Springs Div         9350    6.3     6.6     95     7.2     6.4    112 
 Burgess Junction         7880    3.4     4.1     83     5.0     5.4     93 
 Dome Lake                8880    3.6     4.7     77     5.9     6.2     95 
 Little Goose             8870    3.6      -M       *    5.6      -M       *
 Sucker Creek             8880    4.1     4.4     93     5.0     6.1     82 
 Tie Creek                6870    2.6     1.4    186     5.5     5.1    108 
                                                -----                  -----
                Basin Index (%)                   95                     97 
 

BELLE FOURCHE

 Cole Canyon              5910    2.1     1.1    191     3.4     4.2     81 
                                                -----                  -----
                Basin Index (%)                  191                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    2.9     2.4    121     4.2     5.3     79 
 North Rapid Creek        6130    2.6     2.5    104     3.0     4.5     67 
                                                -----                  -----
                Basin Index (%)                  112                     73 
 

UPPER N. PLATTE

 Arapaho Ridge           10960    9.5     8.3    114    11.3     9.7    116 
 Blackhall Mtn            9820   11.0      -M       *   13.2      -M       *
 Columbine                9160    8.8     7.7    114    11.3    10.2    111 
 Divide Peak              8880    5.7     7.1     80     8.2     9.2     89 
 Joe Wright              10120    6.7     8.6     78    11.5    10.9    106 
 Laprele Creek            8375    3.6     3.3    109     4.0     5.3     75 
 Med Bow                 10500   13.9      -M       *   14.5      -M       *
 North French Creek      10130    8.6    10.3     83    10.7    10.7    100 
 Never Summer            10280    8.2     7.5    109     8.5      -M       *
 Old Battle              10000   10.3    11.2     92    11.5    14.4     80 
 Rawah                    9020    4.8     3.8    126     7.5     6.7    112 
 Sage Creek Basin         7850    4.1     4.7     87     5.5     6.3     87 
 Sand Lake               10050    9.6    10.0     96     9.6    10.0     96 
 South Brush Creek        8440    3.2     4.2     76     4.8     6.5     74 
 Tower                   10500   12.9    17.7     73    16.2    16.4     99 
 Webber Springs           9250    7.9     8.4     94    11.3    11.0    103 
 Willow Creek Pass        9540    6.6     4.9    135     7.9     5.8    136 
 Zirkel                   9340   10.5     8.1    130    14.3    12.0    119 
                                                -----                  -----
                Basin Index (%)                   96                    100 
 

SWEETWATER

 Deer Park                9700    7.8     5.2    150    11.6     7.6    153 
 Larsen Creek             9000    5.7     4.1    139     9.9      -M       *
 South Pass               9040    7.6     5.6    136     8.3     7.4    112 
                                                -----                  -----
                Basin Index (%)                  142                    133 
 

LOWER N. PLATTE

 Casper Mtn.              7900    3.8     5.2     73     4.6     6.8     68 
 Laprele Creek            8375    3.6     3.3    109     4.0     5.3     75 
 Reno Hill                8400     -M     5.2       *     -M     6.4       *
 Windy Peak               7900    3.2     2.8    114     4.0     4.7     85 
                                                -----                  -----
                Basin Index (%)                   94                     75 
 

LARAMIE RIVER

 Brooklyn Lake           10240    7.0     7.1     99     7.5     8.2     91 
 Cinnabar Park            9574    6.5     7.6     86     9.2    10.0     92 
 Crow Creek               8330    2.0     3.9     51     3.7     4.9     76 
 Deadman Hill            10220    7.0     6.4    109     7.5     7.0    107 
 Rawah                    9020    4.8     3.8    126     7.5     6.7    112 
 Roach                    9700    5.0     5.9     85     6.7     7.9     85 
                                                -----                  -----
                Basin Index (%)                   93                     94 
 

S. PLATTE

 Black Mountain           8920    3.6      -M       *    5.2      -M       *
 Crow Creek               8330    2.0     3.9     51     3.7     4.9     76 
 Deadman Hill            10220    7.0     6.4    109     7.5     7.0    107 
                                                -----                  -----
                Basin Index (%)                   87                     94 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.3     3.2    103     6.2     6.3     98 
 Divide Peak              8880    5.7     7.1     80     8.2     9.2     89 
 Elk River                8700    7.2     5.6    129     8.4     8.0    105 
 Little Snake River       8915   10.1     7.0    144    15.0    12.9    116 
 Old Battle              10000   10.3    11.2     92    11.5    14.4     80 
 Sage Creek Basin         7850    4.1     4.7     87     5.5     6.3     87 
 Sandstone RS             8150    4.5     3.9    115     5.3     7.6     70 
 Whiskey Park             8950    8.3     8.2    101    11.5    10.6    108 
                                                -----                  -----
                Basin Index (%)                  105                     95 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    7.2     4.8    150    10.0     5.5    182 
 Blind Bull Sum           8650   12.5     7.9    158    14.2     8.1    175 
 East Rim Divide          7930    5.0     3.6    139     8.3     4.8    173 
 Elkhart Park G.S.        9400    4.7     4.6    102    10.0     5.6    179 
 Gros Ventre Summit       8750    5.3     5.0    106     9.4     5.4    174 
 Gunsight Pass            9820    6.2     4.5    138    10.4     5.5    189 
 Kendall R.S.             7740    6.8     4.1    166    11.1     5.6    198 
 Loomis Park              8240    7.9     5.2    152    13.2     6.9    191 
 New Fork Lake            8340    5.2     3.7    141     6.1     4.5    136 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    5.0     4.4    114    10.2     5.7    179 
 Spring Creek Divide      9000   11.0     8.2    134    16.3     9.4    173 
 Triple Peak              8500   12.7     7.3    174    17.5     9.6    182 
                                                -----                  -----
                Basin Index (%)                  141                    178 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    4.1      -M       *    5.9      -M       *
 Buck Pasture             9700    5.8      -M       *    8.6      -M       *
 EF Blacks Fork GS        9360    5.3      -M       *    5.8      -M       *
 Hams Fork                7840    4.2     3.7    114     8.0     4.5    178 
 Hewinta                  9519    3.9     3.2    122     6.3     5.9    107 
 Hickerson Park           9145    3.4     2.2    155     3.9     4.6     85 
 Hole-in-Rock             9150    2.3     2.5     92     4.2     4.2    100 
 Indian Creek             9425   10.2     8.9    115    14.3     8.6    166 
 Kelley R.S.              8180    7.0     5.1    137    12.6     7.3    173 
 Spirit Lk               10235    4.3      -M       *    6.8      -M       *
 Steel Creek Park        10200    6.0     5.7    105     7.9     6.8    116 
                                                -----                  -----
                Basin Index (%)                  118                    137 
 

UPPER BEAR RIVER

 Bear River RS            8777    4.1      -M       *    6.1      -M       *
 Bug Lake                 7950    8.7     5.5    158    10.3     7.9    130 
 Burts Miller Ranch       8000    2.4      -M       *    3.4      -M       *
 Chalk Creek #1           8993    9.7     9.1    107    12.0    10.3    117 
 Hayden Fork              9212    6.9     4.6    150    10.9     8.4    130 
 Kelley R.S.              8180    7.0     5.1    137    12.6     7.3    173 
 Lily Lake                9156    4.6     4.6    100     6.9     7.3     95 
 Monte Cristo             8960    9.2     8.8    105    12.9    10.2    126 
 Salt River Summit        7760    4.6     3.9    118    10.5     6.5    162 
                                                -----                  -----
                Basin Index (%)                  122                    131 

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


 -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.