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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: FEBRUARY 15 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   21.8    12.6    173    29.4    15.5    190 
 Black Bear               8170   29.7    27.1    110    38.9    27.6    141 
 Blind Bull Sum           8650   32.6    15.9    205      -M    14.4       *
 Cottonwood Creek         7670   21.2    14.6    145    28.2    17.6    160 
 East Rim Divide          7930   15.3     7.3    210    17.2     8.5    202 
 Grand Targhee            9260   32.8    26.4    124    31.0    23.0    135 
 Granite Creek            6770   23.0    12.2    189    26.3    15.0    175 
 Grassy Lake              7265   29.2    23.8    123    41.5    26.8    155 
 Gros Ventre Summit       8750     -M     8.9       *     -M     9.0       *
 Gunsight Pass            9820   15.6     9.4    166    18.9    10.0    189 
 Lewis Lake Divide        7850   29.0    23.0    126    39.6    25.9    153 
 Phillips Bench           8200   26.1    17.7    147    35.3    20.3    174 
 Salt River Summit        7760   16.9     9.2    184    22.5    11.9    189 
 Snake River Station      6920   17.5    13.0    135    28.7    17.1    168 
 Spring Creek Divide      9000   28.7    16.3    176    29.5    17.3    171 
 Thumb Divide             7980   17.0    10.6    160    21.0    13.3    158 
 Togwotee Pass            9580   24.6    16.4    150    28.6    17.6    162 
 Two Ocean Plateau        9240     -M    19.4       *     -M    19.4       *
 Willow Creek             8380   26.7    19.3    138    36.4    24.1    151 
 Younts Peak              8350   19.5    10.7    182    23.4    11.6    202 
                                                -----                  -----
                Basin Index (%)                  150                    164 
 

MADISON-GALLATIN

 Black Bear               8170   29.7    27.1    110    38.9    27.6    141 
 Canyon                   7870   13.6     9.3    146    20.2    11.9    170 
 Madison Plateau          7750   18.8    15.6    121    27.4    19.0    144 
 West Yellowstone         6700   10.0     7.6    132    18.0    10.7    168 
 Whiskey Creek            6800   11.7    10.7    109    20.1    14.6    138 
                                                -----                  -----
                Basin Index (%)                  119                    149 
 

YELLOWSTONE

 Beartooth Lake           9360   23.6    15.3    154    19.6    14.3    137 
 Burnt Mtn                5880    4.9     3.4    144    10.2     8.6    119 
 Canyon                   7870   13.6     9.3    146    20.2    11.9    170 
 Cole Creek               7850    7.5     8.8     85     5.7     8.3     69 
 Evening Star             9200   27.7    17.5    158    30.0    20.1    149 
 Fisher Creek             9100   29.1    23.0    127    33.5    23.0    146 
 Northeast Entrance       7350    9.2     7.3    126    15.0     9.1    165 
 Parker Peak              9400   23.8    14.0    170    23.0    12.7    181 
 Sylvan Lake              8420   18.1    14.0    129    29.1    16.3    179 
 Thumb Divide             7980   17.0    10.6    160    21.0    13.3    158 
 Two Ocean Plateau        9240     -M    19.4       *     -M    19.4       *
 White Mill               8700   22.6    16.2    140    24.9    17.2    145 
 Wolverine                7650   13.8     7.8    177    16.9     9.1    186 
                                                -----                  -----
                Basin Index (%)                  143                    152 
 

WIND RIVER

 Burroughs Creek          8750   18.4      -M       *   20.7      -M       *
 Castle Creek             8400   10.0      -M       *   12.1      -M       *
 Cold Springs             9630    9.3     5.1    182    11.6     6.7    173 
 Deer Park                9700   22.9     9.7    236    26.5    13.9    191 
 Hobbs Park              10100   16.2     8.5    191    15.6     8.6    181 
 Kirwin                   9550   13.9     6.2    224    17.1     7.9    216 
 Little Warm              9370   11.2     7.2    156    16.9     8.9    190 
 Owl Creek                8975    5.6     3.3    170     7.2     3.9    185 
 South Pass               9040   21.4    10.1    212    20.0    12.1    165 
 St. Lawrence Alt         8620    5.1     4.5    113     9.4     5.8    162 
 Togwotee Pass            9580   24.6    16.4    150    28.6    17.6    162 
 Townsend Creek           8700    8.5     5.8    147    11.7     7.8    150 
                                                -----                  -----
                Basin Index (%)                  181                    177 
 

BIGHORN BASIN

 Bald Mtn.                9380   13.9    12.8    109    12.3    11.8    104 
 Bear Trap Meadow         8200    3.8     3.8    100     5.1     5.6     91 
 Bone Springs Div         9350   11.7    10.7    109    11.7    10.6    110 
 Grave Springs            8550    4.2     5.5     76     4.8     7.1     68 
 Kirwin                   9550   13.9     6.2    224    17.1     7.9    216 
 Marquette                8760    6.3      -M       *   10.0      -M       *
 Middle Powder            7760    5.0     7.1     70     5.5     8.0     69 
 Owl Creek                8975    5.6     3.3    170     7.2     3.9    185 
 Powder River Pass        9480    4.9     7.1     69     7.8     8.6     91 
 Shell Creek              9580   11.5    10.1    114     9.1     9.6     95 
 Timber Creek             7950    4.4     3.1    142     5.8     4.8    121 
                                                -----                  -----
                Basin Index (%)                  113                    111 
 

SHOSHONE RIVER

 Blackwater               9780   27.5    15.5    177    30.8    14.6    211 
 Evening Star             9200   27.7    17.5    158    30.0    20.1    149 
 Marquette                8760    6.3      -M       *   10.0      -M       *
 Sylvan Road              7120   13.3     8.6    155    24.4    12.9    189 
 Younts Peak              8350   19.5    10.7    182    23.4    11.6    202 
                                                -----                  -----
                Basin Index (%)                  168                    183 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.8     3.8    100     5.1     5.6     91 
 Cloud Peak Reservoir     9860    8.7     9.5     92    10.3     8.6    120 
 Grave Springs            8550    4.2     5.5     76     4.8     7.1     68 
 Hansen Sawmill           8360    6.0     4.3    140     7.8     5.5    142 
 Middle Powder            7760    5.0     7.1     70     5.5     8.0     69 
 Powder River Pass        9480    4.9     7.1     69     7.8     8.6     91 
 Soldier Park             8720    9.4      -M       *    7.8      -M       *
                                                -----                  -----
                Basin Index (%)                   87                     95 
 

TONGUE RIVER

 Big Goose                7990    6.4     5.6    114     7.4     7.2    103 
 Bone Springs Div         9350   11.7    10.7    109    11.7    10.6    110 
 Burgess Junction         7880    6.9     7.4     93     8.1     8.2     99 
 Dome Lake                8880    8.1     7.7    105     9.5     9.1    104 
 Little Goose             8870    6.9      -M       *    9.2      -M       *
 Sucker Creek             8880    7.8     7.9     99     7.9     9.5     83 
 Tie Creek                6870    4.4     3.8    116     8.0     7.7    104 
                                                -----                  -----
                Basin Index (%)                  105                    101 
 

BELLE FOURCHE

 Cole Canyon              5910    3.2     4.4     73     4.7     6.5     72 
                                                -----                  -----
                Basin Index (%)                   73                     72 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.5     5.6     80     5.9     8.5     69 
 North Rapid Creek        6130    4.4     5.3     83     5.2     6.9     75 
                                                -----                  -----
                Basin Index (%)                   82                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   21.4    14.6    147    21.8    16.0    136 
 Blackhall Mtn            9820   30.0      -M       *   29.6      -M       *
 Columbine                9160   21.6    17.1    126    23.1    18.4    126 
 Divide Peak              8880   15.3    13.9    110    17.8    15.3    116 
 Joe Wright              10120   15.9    14.4    110    23.0    17.9    128 
 Laprele Creek            8375    9.0     6.4    141     8.5     8.4    101 
 Med Bow                 10500   29.8      -M       *   27.6      -M       *
 North French Creek      10130   19.1    18.9    101    20.4    18.9    108 
 Never Summer            10280   18.6    13.9    134    15.4      -M       *
 Old Battle              10000   29.7    21.7    137    31.2    25.3    123 
 Rawah                    9020   10.9     7.3    149    13.5     9.8    138 
 Sage Creek Basin         7850   12.6     9.5    133    12.8    10.9    117 
 Sand Lake               10050   22.2    18.3    121    21.0    16.9    124 
 South Brush Creek        8440    8.4     8.2    102     9.2    10.5     88 
 Tower                   10500   35.4    32.0    111    37.0    28.6    129 
 Webber Springs           9250   23.4    16.4    143    27.4    19.0    144 
 Willow Creek Pass        9540   15.0     8.4    179    15.9     9.3    171 
 Zirkel                   9340   34.5    20.6    167    35.9    21.3    169 
                                                -----                  -----
                Basin Index (%)                  130                    129 
 

SWEETWATER

 Deer Park                9700   22.9     9.7    236    26.5    13.9    191 
 Larsen Creek             9000   16.1     8.4    192    18.6      -M       *
 South Pass               9040   21.4    10.1    212    20.0    12.1    165 
                                                -----                  -----
                Basin Index (%)                  214                    179 
 

LOWER N. PLATTE

 Casper Mtn.              7900    7.6     8.7     87     7.5    10.0     75 
 Laprele Creek            8375    9.0     6.4    141     8.5     8.4    101 
 Reno Hill                8400    8.6     8.6    100     9.0    10.0     90 
 Windy Peak               7900    7.2     5.0    144     7.7     7.1    108 
                                                -----                  -----
                Basin Index (%)                  113                     92 
 

LARAMIE RIVER

 Brooklyn Lake           10240   19.3    13.6    142    17.4    14.4    121 
 Cinnabar Park            9574   15.0    15.6     96    17.7    18.0     98 
 Crow Creek               8330    3.8     6.2     61     6.2     7.1     87 
 Deadman Hill            10220   16.4    11.3    145    15.9    11.4    139 
 Rawah                    9020   10.9     7.3    149    13.5     9.8    138 
 Roach                    9700   14.0    11.3    124    16.5    13.2    125 
                                                -----                  -----
                Basin Index (%)                  122                    118 
 

S. PLATTE

 Black Mountain           8920    7.6      -M       *    8.7      -M       *
 Crow Creek               8330    3.8     6.2     61     6.2     7.1     87 
 Deadman Hill            10220   16.4    11.3    145    15.9    11.4    139 
                                                -----                  -----
                Basin Index (%)                  115                    119 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    9.1     8.4    108    12.5    11.0    114 
 Divide Peak              8880   15.3    13.9    110    17.8    15.3    116 
 Elk River                8700   16.4    13.5    121    16.8    14.4    117 
 Little Snake River       8915   26.3    18.0    146    32.1    23.0    140 
 Old Battle              10000   29.7    21.7    137    31.2    25.3    123 
 Sage Creek Basin         7850   12.6     9.5    133    12.8    10.9    117 
 Sandstone RS             8150   10.6     9.6    110    12.9    13.5     96 
 Whiskey Park             8950   21.7    18.8    115    24.0    20.3    118 
                                                -----                  -----
                Basin Index (%)                  125                    120 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   17.0     8.9    191    19.2     9.3    206 
 Blind Bull Sum           8650   32.6    15.9    205      -M    14.4       *
 East Rim Divide          7930   15.3     7.3    210    17.2     8.5    202 
 Elkhart Park G.S.        9400   14.1     8.4    168    19.1     9.3    205 
 Gros Ventre Summit       8750     -M     8.9       *     -M     9.0       *
 Gunsight Pass            9820   15.6     9.4    166    18.9    10.0    189 
 Kendall R.S.             7740   18.4     8.8    209    22.8    10.3    221 
 Loomis Park              8240   21.6    10.5    206    26.1    12.5    209 
 New Fork Lake            8340   13.9     7.4    188    14.1     7.8    181 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   15.7     8.9    176    21.6    10.3    210 
 Spring Creek Divide      9000   28.7    16.3    176    29.5    17.3    171 
 Triple Peak              8500   30.3    15.3    198    31.1    17.9    174 
                                                -----                  -----
                Basin Index (%)                  191                    194 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    8.7      -M       *   11.4      -M       *
 Buck Pasture             9632   14.9      -M       *   17.9      -M       *
 EF Blacks Fork GS        9360   12.5      -M       *     -M      -M       *
 Hams Fork                7840   14.1     8.2    172    16.0     8.2    195 
 Hewinta                  9519    9.7     6.8    143    11.5     9.7    119 
 Hickerson Park           9145    6.4     4.9    131     6.5     6.8     96 
 Hole-in-Rock             9150    5.2     4.7    111     7.1     6.4    111 
 Indian Creek             9425   28.8    16.3    177      -M    15.8       *
 Kelley R.S.              8180   20.4    10.3    198    24.1    13.0    185 
 Spirit Lk               10235   10.5      -M       *   12.2      -M       *
 Steel Creek Park        10200   12.5    10.1    124    14.4    11.1    130 
                                                -----                  -----
                Basin Index (%)                  158                    144 
 

UPPER BEAR RIVER

 Bear River RS            8777   10.8      -M       *   13.0      -M       *
 Bug Lake                 7950   25.9    13.0    199    24.2    13.8    175 
 Burts Miller Ranch       8000    5.6      -M       *    6.6      -M       *
 Chalk Creek #1           8993   25.7    15.7    164    27.0    17.5    154 
 Hayden Fork              9212   17.9    10.6    169      -M    14.7       *
 Kelley R.S.              8180   20.4    10.3    198    24.1    13.0    185 
 Lily Lake                9156   12.4     8.7    143    14.4    11.9    121 
 Monte Cristo             8960   26.4    18.4    143      -M    18.2       *
 Salt River Summit        7760   16.9     9.2    184    22.5    11.9    189 
                                                -----                  -----
                Basin Index (%)                  169                    165 

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


 -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.