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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


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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: NOVEMBER 22 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030    6.1     2.4    254     7.6     4.8    158 
 Black Bear               8170   11.7     7.2    162    10.7     8.4    127 
 Blind Bull Sum           8650   10.3     3.9    264     6.7     4.4    152 
 Cottonwood Creek         7670    4.3     3.0    143     5.7     5.5    104 
 East Rim Divide          7930    3.1     1.5    207     3.7     2.8    132 
 Grand Targhee            9260   17.2     9.0    191    10.3     8.9    116 
 Granite Creek            6770     -M     1.6       *     -M     4.2       *
 Grassy Lake              7265    7.2     4.7    153     9.4     7.7    122 
 Gros Ventre Summit       8750    6.3     3.0    210     5.8     3.4    171 
 Gunsight Pass            9820    5.0     2.6    192     5.7     3.5    163 
 Lewis Lake Divide        7850    9.5     5.2    183    11.0     7.8    141 
 Phillips Bench           8200    7.4     3.9    190     8.2     5.7    144 
 Salt River Summit        7760    2.2     1.3    169     3.7     3.5    106 
 Snake River Station      6920    4.6     1.9    242     7.2     5.2    138 
 Spring Creek Divide      9000    6.6     3.9    169     7.0     5.1    137 
 Thumb Divide             7980    5.7     2.3    248     6.8     4.4    155 
 Togwotee Pass            9580   10.8     5.5    196    10.3     5.8    178 
 Two Ocean Plateau        9240   15.2     7.0    217    10.0     6.5    154 
 Willow Creek             8380    7.1     4.0    178     9.6     7.5    128 
 Younts Peak              8350     -M     3.3       *     -M     4.2       *
                                                -----                  -----
                Basin Index (%)                  194                    138 
 

MADISON-GALLATIN

 Black Bear               8170   11.7     7.2    162    10.7     8.4    127 
 Canyon                   7870    3.7     2.2    168     4.8     4.0    120 
 Madison Plateau          7750    7.0     3.8    184     7.3     5.7    128 
 West Yellowstone         6700    2.8     1.4    200     4.4     3.4    129 
 Whiskey Creek            6800    3.0     2.2    136     4.7     4.6    102 
                                                -----                  -----
                Basin Index (%)                  168                    122 
 

YELLOWSTONE

 Beartooth Lake           9360   11.8     5.2    227    10.0     4.5    222 
 Burnt Mtn                5880    2.5      .8    312     5.2     4.6    113 
 Canyon                   7870    3.7     2.2    168     4.8     4.0    120 
 Cole Creek               7850    4.7     3.4    138     3.5     4.4     80 
 Evening Star             9200   12.8     5.8    221    12.5     6.8    184 
 Fisher Creek             9100   15.3     7.0    219    12.8     7.4    173 
 Northeast Entrance       7350    2.9     1.1    264     5.0     3.4    147 
 Parker Peak              9400   11.6     4.9    237     9.0     4.7    191 
 Sylvan Lake              8420    8.3     4.1    202     8.5     5.9    144 
 Thumb Divide             7980    5.7     2.3    248     6.8     4.4    155 
 Two Ocean Plateau        9240   15.2     7.0    217    10.0     6.5    154 
 White Mill               8700   12.6     4.8    262     7.9     5.8    136 
 Wolverine                7650    4.3     1.2    358     6.1     3.4    179 
                                                -----                  -----
                Basin Index (%)                  224                    155 
 

WIND RIVER

 Burroughs Creek          8750    5.0      -M       *    5.5      -M       *
 Castle Creek             8400    2.3      -M       *    3.7      -M       *
 Cold Springs             9630    2.8     1.8    156     3.6     3.1    116 
 Deer Park                9700    5.2     3.4    153     5.9     4.8    123 
 Hobbs Park              10100    7.5     3.8    197     6.2     3.8    163 
 Kirwin                   9550    7.4     3.0    247     5.9     3.4    174 
 Little Warm              9370    6.9     2.3    300     6.2     3.5    177 
 Owl Creek                8975    1.3     1.4     93     2.8     2.0    140 
 South Pass               9040    4.2     3.1    135     3.6     4.4     82 
 St. Lawrence Alt         8620    1.8     1.6    112     3.7     2.8    132 
 Togwotee Pass            9580   10.8     5.5    196    10.3     5.8    178 
 Townsend Creek           8700    2.8     2.0    140     4.1     3.6    114 
                                                -----                  -----
                Basin Index (%)                  182                    141 
 

BIGHORN BASIN

 Bald Mtn.                9380    6.0     4.8    125     3.9     4.5     87 
 Bear Trap Meadow         8200    2.2     1.2    183     3.3     2.8    118 
 Bone Springs Div         9350    4.1     4.5     91     3.8     4.3     88 
 Grave Springs            8550    1.6     1.5    107     1.9     3.3     58 
 Kirwin                   9550    7.4     3.0    247     5.9     3.4    174 
 Marquette                8760    2.1      -M       *    4.6      -M       *
 Middle Powder            7760    2.1     2.1    100     1.9     3.9     49 
 Owl Creek                8975    1.3     1.4     93     2.8     2.0    140 
 Powder River Pass        9480    5.2     2.3    226     4.6     3.5    131 
 Shell Creek              9580    7.4     4.2    176     4.5     3.9    115 
 Timber Creek             7950    1.4     1.4    100     1.1     2.9     38 
                                                -----                  -----
                Basin Index (%)                  147                     98 
 

SHOSHONE RIVER

 Blackwater               9780   13.3     5.6    238    10.5     5.4    194 
 Evening Star             9200   12.8     5.8    221    12.5     6.8    184 
 Marquette                8760    2.1      -M       *    4.6      -M       *
 Sylvan Road              7120    4.3     1.8    239     6.7     4.7    143 
 Younts Peak              8350     -M     3.3       *     -M     4.2       *
                                                -----                  -----
                Basin Index (%)                  230                    176 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.2     1.2    183     3.3     2.8    118 
 Cloud Peak Reservoir     9860    3.4     3.4    100     4.6     4.2    110 
 Grave Springs            8550    1.6     1.5    107     1.9     3.3     58 
 Hansen Sawmill           8360    2.4     1.3    185     3.3     2.7    122 
 Middle Powder            7760    2.1     2.1    100     1.9     3.9     49 
 Powder River Pass        9480    5.2     2.3    226     4.6     3.5    131 
 Soldier Park             8720    1.5      -M       *    3.5      -M       *
                                                -----                  -----
                Basin Index (%)                  143                     96 
 

TONGUE RIVER

 Big Goose                7990    1.5     2.0     75     2.2     3.5     63 
 Bone Springs Div         9350    4.1     4.5     91     3.8     4.3     88 
 Burgess Junction         7880    1.7     2.6     65     2.4     3.7     65 
 Dome Lake                8880    2.8     3.1     90     3.0     4.2     71 
 Little Goose             8870    1.8      -M       *    3.5      -M       *
 Sucker Creek             8880    2.0     2.9     69     1.3     4.2     31 
 Tie Creek                6870    1.2      .6    200     2.5     3.7     68 
                                                -----                  -----
                Basin Index (%)                   85                     64 
 

BELLE FOURCHE

 Cole Canyon              5910     .8      .6    133     2.0     3.1     65 
                                                -----                  -----
                Basin Index (%)                  133                     65 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    1.2     1.4     86     3.1     3.9     79 
 North Rapid Creek        6130    1.5     1.1    136     2.1     3.4     62 
                                                -----                  -----
                Basin Index (%)                  108                     71 
 

UPPER N. PLATTE

 Arapaho Ridge           10960    5.2     4.9    106     5.7     5.9     97 
 Blackhall Mtn            9820    6.6      -M       *    7.1      -M       *
 Columbine                9160    3.4     3.5     97     7.1     5.5    129 
 Divide Peak              8880    3.0     3.6     83     5.9     5.6    105 
 Joe Wright              10120    4.2     4.9     86     9.3     6.7    139 
 Laprele Creek            8375    1.3     2.0     65     2.7     3.5     77 
 Med Bow                 10500    9.3      -M       *    8.2      -M       *
 North French Creek      10130    6.6     5.1    129     7.3     6.3    116 
 Never Summer            10280    5.8     4.3    135     5.8      -M       *
 Old Battle              10000    6.1     6.1    100     6.1     8.1     75 
 Rawah                    9020    2.7     1.9    142     5.9     4.2    140 
 Sage Creek Basin         7850    1.7     1.7    100     3.3     3.7     89 
 Sand Lake               10050    7.7     5.7    135     6.8     6.0    113 
 South Brush Creek        8440    3.1     2.0    155     4.4     4.0    110 
 Tower                   10500    7.0     9.2     76     9.5     9.2    103 
 Webber Springs           9250    3.6     3.8     95     5.8     6.2     94 
 Willow Creek Pass        9540    4.7     2.9    162     5.0     3.7    135 
 Zirkel                   9340    4.1     3.5    117     8.5     7.0    121 
                                                -----                  -----
                Basin Index (%)                  108                    109 
 

SWEETWATER

 Deer Park                9700    5.2     3.4    153     5.9     4.8    123 
 Larsen Creek             9000    2.0     1.8    111     3.5      -M       *
 South Pass               9040    4.2     3.1    135     3.6     4.4     82 
                                                -----                  -----
                Basin Index (%)                  137                    103 
 

LOWER N. PLATTE

 Casper Mtn.              7900    1.9     3.0     63     2.1     4.6     46 
 Laprele Creek            8375    1.3     2.0     65     2.7     3.5     77 
 Reno Hill                8400    2.6     2.7     96     3.7     4.2     88 
 Windy Peak               7900    1.3     1.4     93     2.7     3.0     90 
                                                -----                  -----
                Basin Index (%)                   78                     73 
 

LARAMIE RIVER

 Brooklyn Lake           10240    4.3     3.8    113     5.6     4.8    117 
 Cinnabar Park            9574    6.0     4.0    150     7.8     5.4    144 
 Crow Creek               8330     .8     1.3     62     4.0     3.1    129 
 Deadman Hill            10220    6.7     3.9    172     7.0     4.5    156 
 Rawah                    9020    2.7     1.9    142     5.9     4.2    140 
 Roach                    9700    4.5     3.2    141     6.4     4.7    136 
                                                -----                  -----
                Basin Index (%)                  138                    137 
 

S. PLATTE

 Black Mountain           8920    3.1      -M       *    5.2      -M       *
 Crow Creek               8330     .8     1.3     62     4.0     3.1    129 
 Deadman Hill            10220    6.7     3.9    172     7.0     4.5    156 
                                                -----                  -----
                Basin Index (%)                  144                    145 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .6     1.0     60*    3.2     3.8     84 
 Divide Peak              8880    3.0     3.6     83     5.9     5.6    105 
 Elk River                8700    2.7     2.1    129     5.1     4.6    111 
 Little Snake River       8915    3.4     3.0    113     6.9     7.1     97 
 Old Battle              10000    6.1     6.1    100     6.1     8.1     75 
 Sage Creek Basin         7850    1.7     1.7    100     3.3     3.7     89 
 Sandstone RS             8150    1.4     1.3    108*    2.9     4.4     66 
 Whiskey Park             8950    3.3     3.8     87     6.1     6.0    102 
                                                -----                  -----
                Basin Index (%)                   98                     91 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    3.4     3.1    110     3.9     3.4    115 
 Blind Bull Sum           8650   10.3     3.9    264     6.7     4.4    152 
 East Rim Divide          7930    3.1     1.5    207     3.7     2.8    132 
 Elkhart Park G.S.        9400    3.3     2.6    127     3.5     3.5    100 
 Gros Ventre Summit       8750    6.3     3.0    210     5.8     3.4    171 
 Gunsight Pass            9820    5.0     2.6    192     5.7     3.5    163 
 Kendall R.S.             7740    3.9     1.9    205     4.8     3.3    145 
 Loomis Park              8240    4.7     2.2    214     5.2     3.8    137 
 New Fork Lake            8340    2.8     1.8    156     2.3     2.8     82 
 Pocket Creek             9360    4.0      -M       *    3.6      -M       *
 Snider Basin             8060    3.0     1.9    158     4.2     3.1    135 
 Spring Creek Divide      9000    6.6     3.9    169     7.0     5.1    137 
 Triple Peak              8500    7.1     3.9    182     9.0     5.3    170 
                                                -----                  -----
                Basin Index (%)                  184                    139 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    1.7      -M       *    2.4      -M       *
 Buck Pasture             9632    2.9      -M       *    3.4      -M       *
 EF Blacks Fork GS        9360    1.9      -M       *    2.7      -M       *
 Hams Fork                7840    1.7     1.6    106     2.8     2.7    104 
 Hewinta                  9500     .9     1.4     64     2.9     3.8     76 
 Hickerson Park           9122    1.9     1.3    146     1.7     3.3     52 
 Hole-in-Rock             9168    1.6     1.2    133     2.1     3.2     66 
 Indian Creek             9425    5.6     4.7    119     4.8     4.7    102 
 Kelley R.S.              8180    3.3     2.3    143     3.8     4.0     95 
 Spirit Lk               10235    2.1      -M       *    2.3      -M       *
 Steel Creek Park        10158    3.7     3.2    116     3.6     4.4     82 
                                                -----                  -----
                Basin Index (%)                  119                     83 
 

UPPER BEAR RIVER

 Bear River RS            8777    1.6      -M       *    2.8      -M       *
 Bug Lake                 7987    3.4     2.6    131     5.1     4.4    116 
 Burts Miller Ranch       8000    1.5      -M       *    1.7      -M       *
 Chalk Creek #1           9171    3.7     3.9     95     4.4     6.1     72 
 Hayden Fork              9130    2.5     2.3    109     3.7     5.0     74 
 Kelley R.S.              8180    3.3     2.3    143     3.8     4.0     95 
 Lily Lake                9133    1.9     2.2     86     2.8     4.5     62 
 Monte Cristo             8932    5.3     3.6    147     5.4     5.7     95 
 Salt River Summit        7760    2.2     1.3    169     3.7     3.5    106 
                                                -----                  -----
                Basin Index (%)                  123                     87 
----------------------------------------------------------------------------

 -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.