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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 5:03a, 5/23/18
Temperature 44.5°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 TUESDAY: JANUARY 10 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   12.9     8.5    152    20.5    11.4    180 
 Black Bear               8170   18.8    19.6     96    27.9    20.2    138 
 Blind Bull Sum           8650   18.2    11.1    164    16.1    10.5    153 
 Cottonwood Creek         7670   13.2     9.3    142    19.5    12.9    151 
 East Rim Divide          7930    9.2     5.1    180    11.6     6.3    184 
 Grand Targhee            9260   25.3    20.4    124    23.6    17.3    136 
 Granite Creek            6770   13.2     7.5    176    19.3    10.8    179 
 Grassy Lake              7265   18.6    15.2    122    30.2    19.4    156 
 Gros Ventre Summit       8750    8.2     7.0    117    12.4     6.7    185 
 Gunsight Pass            9820    8.9     7.0    127    13.0     7.3    178 
 Lewis Lake Divide        7850   15.9    15.2    105    27.0    19.1    141 
 Phillips Bench           8200   15.1    13.0    116    24.3    14.8    164 
 Salt River Summit        7760    8.9     5.6    159    14.6     8.6    170 
 Snake River Station      6920   12.1     8.0    151    21.0    12.5    168 
 Spring Creek Divide      9000   16.7    11.1    150    21.0    12.5    168 
 Thumb Divide             7980    8.5     7.3    116    14.2    10.0    142 
 Togwotee Pass            9580   16.0    12.4    129    19.7    13.0    152 
 Two Ocean Plateau        9240   20.5    14.4    142    21.4    14.2    151 
 Willow Creek             8380   16.0    12.7    126    26.7    17.6    152 
 Younts Peak              8350   10.1     7.6    133    14.6     8.7    168 
                                                -----                  -----
                Basin Index (%)                  131                    157 
 

MADISON-GALLATIN

 Black Bear               8170   18.8    19.6     96    27.9    20.2    138 
 Canyon                   7870    8.2     6.5    126    14.2     8.8    161 
 Madison Plateau          7750   11.1    11.2     99    20.5    14.2    144 
 West Yellowstone         6700    6.7     5.6    120    14.0     8.0    175 
 Whiskey Creek            6800    7.3     7.9     92    14.9    11.0    135 
                                                -----                  -----
                Basin Index (%)                  103                    147 
 

YELLOWSTONE

 Beartooth Lake           9360   13.8    11.3    122    10.3    10.4     99 
 Burnt Mtn                5880    4.2     1.9    221     8.1     7.1    114 
 Canyon                   7870    8.2     6.5    126    14.2     8.8    161 
 Cole Creek               7850    5.8     6.7     87     5.1     6.7     76 
 Evening Star             9200   16.0    13.1    122    22.2    14.9    149 
 Fisher Creek             9100   16.3    17.0     96    21.5    17.0    126 
 Northeast Entrance       7350    5.5     4.9    112    10.9     6.9    158 
 Parker Peak              9400   14.3    11.1    129    17.0     9.5    179 
 Sylvan Lake              8420   10.9    10.6    103    21.4    12.4    173 
 Thumb Divide             7980    8.5     7.3    116    14.2    10.0    142 
 Two Ocean Plateau        9240   20.5    14.4    142    21.4    14.2    151 
 White Mill               8700   13.3    11.6    115    16.7    12.7    131 
 Wolverine                7650    8.1     5.5    147    11.4     6.9    165 
                                                -----                  -----
                Basin Index (%)                  119                    141 
 

WIND RIVER

 Burroughs Creek          8750   10.4      -M       *   12.9      -M       *
 Castle Creek             8400    5.8      -M       *    7.9      -M       *
 Cold Springs             9630    5.3     3.6    147     7.5     5.4    139 
 Deer Park                9700     -M     7.0       *     -M    10.1       *
 Hobbs Park              10100   10.5     7.1    148    10.4     6.7    155 
 Kirwin                   9550    8.3     4.8    173    11.3     6.2    182 
 Little Warm              9370    5.7     5.1    112    10.4     6.8    153 
 Owl Creek                8975    3.0     2.8    107     4.5     3.1    145 
 South Pass               9040     -M     7.2       *   12.9     9.1    142 
 St. Lawrence Alt         8620    2.8     3.3     85     6.7     4.6    146 
 Togwotee Pass            9580   16.0    12.4    129    19.7    13.0    152 
 Townsend Creek           8700    5.5     4.2    131     8.1     6.2    131 
                                                -----                  -----
                Basin Index (%)                  132                    150 
 

BIGHORN BASIN

 Bald Mtn.                9380   10.8     9.4    115     9.6     8.8    109 
 Bear Trap Meadow         8200    2.7     2.7    100     4.5     4.5    100 
 Bone Springs Div         9350    8.2     8.0    102     8.6     7.9    109 
 Grave Springs            8550    3.3     4.0     82     4.6     5.5     84 
 Kirwin                   9550    8.3     4.8    173    11.3     6.2    182 
 Marquette                8760    3.7      -M       *    7.2      -M       *
 Middle Powder            7760    4.1     5.5     75     5.0     6.4     78 
 Owl Creek                8975    3.0     2.8    107     4.5     3.1    145 
 Powder River Pass        9480    3.1     5.5     56     6.1     6.6     92 
 Shell Creek              9580    8.9     7.6    117     7.5     7.3    103 
 Timber Creek             7950    3.2     2.3    139     4.5     4.1    110 
                                                -----                  -----
                Basin Index (%)                  106                    110 
 

SHOSHONE RIVER

 Blackwater               9780   16.9    11.9    142    20.6    11.0    187 
 Evening Star             9200   16.0    13.1    122    22.2    14.9    149 
 Marquette                8760    3.7      -M       *    7.2      -M       *
 Sylvan Road              7120    7.9     6.1    130    17.8    10.0    178 
 Younts Peak              8350   10.1     7.6    133    14.6     8.7    168 
                                                -----                  -----
                Basin Index (%)                  132                    169 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.7     2.7    100     4.5     4.5    100 
 Cloud Peak Reservoir     9860    6.2     6.8     91     8.1     6.7    121 
 Grave Springs            8550    3.3     4.0     82     4.6     5.5     84 
 Hansen Sawmill           8360    4.0     3.3    121     5.7     4.4    130 
 Middle Powder            7760    4.1     5.5     75     5.0     6.4     78 
 Powder River Pass        9480    3.1     5.5     56     6.1     6.6     92 
 Soldier Park             8720    6.6      -M       *    6.2      -M       *
                                                -----                  -----
                Basin Index (%)                   84                    100 
 

TONGUE RIVER

 Big Goose                7990    4.7     4.0    118     5.7     5.6    102 
 Bone Springs Div         9350    8.2     8.0    102     8.6     7.9    109 
 Burgess Junction         7880    4.7     5.1     92     6.3     6.4     98 
 Dome Lake                8880    5.6     5.7     98     7.2     7.2    100 
 Little Goose             8870    5.1      -M       *    7.2      -M       *
 Sucker Creek             8880    5.5     5.9     93     6.3     7.3     86 
 Tie Creek                6870    3.3     2.3    143     6.3     6.1    103 
                                                -----                  -----
                Basin Index (%)                  103                    100 
 

BELLE FOURCHE

 Cole Canyon              5910    3.0     2.5    120     4.2     5.0     84 
                                                -----                  -----
                Basin Index (%)                  120                     84 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.6     3.8     95     4.8     6.6     73 
 North Rapid Creek        6130    3.8     3.5    109     4.2     5.5     76 
                                                -----                  -----
                Basin Index (%)                  101                     74 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   15.7    10.7    147    16.7    12.2    137 
 Blackhall Mtn            9820   18.9      -M       *     -M      -M       *
 Columbine                9160   15.7    11.0    143    17.6    13.2    133 
 Divide Peak              8880    9.7     9.7    100    12.1    11.4    106 
 Joe Wright              10120   12.8    10.5    122    18.1    13.4    135 
 Laprele Creek            8375    5.9     4.5    131     5.6     6.4     88 
 Med Bow                 10500   21.7      -M       *   21.2      -M       *
 North French Creek      10130   13.8    13.0    106    15.5    13.6    114 
 Never Summer            10280     -M    10.1       *     -M      -M       *
 Old Battle              10000   18.3    14.8    124    20.0    18.3    109 
 Rawah                    9020    8.4     5.1    165    10.8     8.1    133 
 Sage Creek Basin         7850    7.9     6.7    118     8.5     8.3    102 
 Sand Lake               10050   15.9    13.5    118    15.2    12.5    122 
 South Brush Creek        8440    6.0     5.6    107     7.4     8.0     92 
 Tower                   10500   22.7    20.5    111    25.6    20.7    124 
 Webber Springs           9250   14.9    11.2    133    18.4    13.9    132 
 Willow Creek Pass        9540   10.6     6.0    177    11.7     7.1    165 
 Zirkel                   9340   21.0    13.4    157    22.7    15.8    144 
                                                -----                  -----
                Basin Index (%)                  128                    124 
 

SWEETWATER

 Deer Park                9700     -M     7.0       *     -M    10.1       *
 Larsen Creek             9000    9.9     5.6    177    13.6      -M       *
 South Pass               9040     -M     7.2       *   12.9     9.1    142 
                                                -----                  -----
                Basin Index (%)                  177*                   142*
 

LOWER N. PLATTE

 Casper Mtn.              7900    5.8     6.6     88     6.1     7.9     77 
 Laprele Creek            8375    5.9     4.5    131     5.6     6.4     88 
 Reno Hill                8400     -M     6.4       *     -M     7.7       *
 Windy Peak               7900    4.4     3.3    133     5.3     5.6     95 
                                                -----                  -----
                Basin Index (%)                  112                     85 
 

LARAMIE RIVER

 Brooklyn Lake           10240   13.0     9.6    135    12.1    10.4    116 
 Cinnabar Park            9574   11.1    10.9    102    13.8    13.3    104 
 Crow Creek               8330    3.9     4.8     81     5.5     5.9     93 
 Deadman Hill            10220   11.8     7.8    151    11.7     8.6    136 
 Rawah                    9020    8.4     5.1    165    10.8     8.1    133 
 Roach                    9700    9.3     7.9    118    11.3     9.9    114 
                                                -----                  -----
                Basin Index (%)                  125                    116 
 

S. PLATTE

 Black Mountain           8920    6.2      -M       *    7.5      -M       *
 Crow Creek               8330    3.9     4.8     81     5.5     5.9     93 
 Deadman Hill            10220   11.8     7.8    151    11.7     8.6    136 
                                                -----                  -----
                Basin Index (%)                  125                    119 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    7.1     5.0    142     9.7     8.0    121 
 Divide Peak              8880    9.7     9.7    100    12.1    11.4    106 
 Elk River                8700   12.4     8.4    148    12.7    10.3    123 
 Little Snake River       8915   17.1    11.1    154    22.3    16.9    132 
 Old Battle              10000   18.3    14.8    124    20.0    18.3    109 
 Sage Creek Basin         7850    7.9     6.7    118     8.5     8.3    102 
 Sandstone RS             8150    8.6     5.7    151     8.6     9.7     89 
 Whiskey Park             8950   15.2    11.2    136    18.2    13.9    131 
                                                -----                  -----
                Basin Index (%)                  133                    116 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   11.2     6.9    162    13.8     7.0    197 
 Blind Bull Sum           8650   18.2    11.1    164    16.1    10.5    153 
 East Rim Divide          7930    9.2     5.1    180    11.6     6.3    184 
 Elkhart Park G.S.        9400    8.1     6.0    135    13.4     7.1    189 
 Gros Ventre Summit       8750    8.2     7.0    117    12.4     6.7    185 
 Gunsight Pass            9820    8.9     7.0    127    13.0     7.3    178 
 Kendall R.S.             7740   10.1     5.8    174    14.4     7.4    195 
 Loomis Park              8240   12.4     7.2    172    17.5     9.2    190 
 New Fork Lake            8340    8.4     5.2    162     8.8     5.8    152 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   10.0     6.0    167    14.7     7.5    196 
 Spring Creek Divide      9000   16.7    11.1    150    21.0    12.5    168 
 Triple Peak              8500   18.8    10.0    188    23.1    12.7    182 
                                                -----                  -----
                Basin Index (%)                  159                    180 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    7.8      -M       *    8.9      -M       *
 Buck Pasture             9700   10.5      -M       *   12.8      -M       *
 EF Blacks Fork GS        9360    8.0      -M       *    9.0      -M       *
 Hams Fork                7840    8.3     5.2    160    11.4     6.0    190 
 Hewinta                  9519    7.2     4.5    160     9.6     7.1    135 
 Hickerson Park           9145    5.5     3.1    177     5.9     5.3    111 
 Hole-in-Rock             9150    4.5     3.2    141     6.4     5.0    128 
 Indian Creek             9425   16.9    11.3    150    16.5    11.3    146 
 Kelley R.S.              8180   11.7     7.0    167    17.0     9.5    179 
 Spirit Lk               10235    8.1      -M       *    9.8      -M       *
 Steel Creek Park        10200   10.1     6.7    151    11.8     8.3    142 
                                                -----                  -----
                Basin Index (%)                  157                    150 
 

UPPER BEAR RIVER

 Bear River RS            8777    7.5      -M       *    9.3      -M       *
 Bug Lake                 7950   14.5     7.4    196    15.4    10.1    152 
 Burts Miller Ranch       8000    4.0      -M       *    4.8      -M       *
 Chalk Creek #1           8993   16.1    10.9    148    15.8    13.0    122 
 Hayden Fork              9212   12.1     6.6    183    16.5    10.8    153 
 Kelley R.S.              8180   11.7     7.0    167    17.0     9.5    179 
 Lily Lake                9156    8.6     5.8    148    10.7     8.9    120 
 Monte Cristo             8960   14.9    12.4    120    16.1    13.4    120 
 Salt River Summit        7760    8.9     5.6    159    14.6     8.6    170 
                                                -----                  -----
                Basin Index (%)                  156                    143 

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


 -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.