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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 THURSDAY: FEBRUARY 16 , 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    12.7    172    29.4    15.6    188 
 Black Bear               8170   29.9    27.2    110    38.9    27.9    139 
 Blind Bull Sum           8650   32.7    16.1    203      -M    14.5       *
 Cottonwood Creek         7670   21.4    14.8    145    28.3    17.7    160 
 East Rim Divide          7930   15.4     7.3    211    17.2     8.5    202 
 Grand Targhee            9260   32.9    26.6    124    31.0    23.3    133 
 Granite Creek            6770   23.0    12.4    185    26.3    15.1    174 
 Grassy Lake              7265   29.2    24.1    121    41.6    27.0    154 
 Gros Ventre Summit       8750     -M     8.9       *     -M     9.1       *
 Gunsight Pass            9820   15.7     9.5    165    18.9    10.0    189 
 Lewis Lake Divide        7850   29.1    23.2    125    39.7    26.1    152 
 Phillips Bench           8200   26.2    17.9    146    36.0    20.5    176 
 Salt River Summit        7760   16.9     9.3    182    22.5    12.1    186 
 Snake River Station      6920   17.4    13.1    133    28.7    17.2    167 
 Spring Creek Divide      9000   28.7    16.4    175    29.6    17.4    170 
 Thumb Divide             7980   17.0    10.7    159    21.0    13.3    158 
 Togwotee Pass            9580   24.6    16.5    149    28.6    17.7    162 
 Two Ocean Plateau        9240     -M    19.5       *     -M    19.6       *
 Willow Creek             8380   26.7    19.6    136    36.5    24.2    151 
 Younts Peak              8350   19.6    10.9    180    23.4    11.6    202 
                                                -----                  -----
                Basin Index (%)                  149                    163 
 

MADISON-GALLATIN

 Black Bear               8170   29.9    27.2    110    38.9    27.9    139 
 Canyon                   7870   13.6     9.4    145    20.3    12.0    169 
 Madison Plateau          7750   18.8    15.7    120    27.4    19.1    143 
 West Yellowstone         6700   10.0     7.7    130    18.0    10.7    168 
 Whiskey Creek            6800   11.8    10.8    109    20.2    14.8    136 
                                                -----                  -----
                Basin Index (%)                  119                    148 
 

YELLOWSTONE

 Beartooth Lake           9360   23.7    15.4    154    19.6    14.4    136 
 Burnt Mtn                5880    4.9     3.5    140    10.1     8.7    116 
 Canyon                   7870   13.6     9.4    145    20.3    12.0    169 
 Cole Creek               7850    7.5     8.9     84     5.8     8.4     69 
 Evening Star             9200   27.7    17.7    156    30.0    20.2    149 
 Fisher Creek             9100   29.1    23.3    125    33.5    23.2    144 
 Northeast Entrance       7350    9.1     7.4    123    15.0     9.2    163 
 Parker Peak              9400   23.9    14.1    170    23.1    12.7    182 
 Sylvan Lake              8420   18.1    14.2    127    29.1    16.4    177 
 Thumb Divide             7980   17.0    10.7    159    21.0    13.3    158 
 Two Ocean Plateau        9240     -M    19.5       *     -M    19.6       *
 White Mill               8700   22.6    16.3    139    24.8    17.3    143 
 Wolverine                7650   13.9     7.9    176    16.9     9.1    186 
                                                -----                  -----
                Basin Index (%)                  142                    151 
 

WIND RIVER

 Burroughs Creek          8750   18.5      -M       *   20.8      -M       *
 Castle Creek             8400   10.0      -M       *   12.1      -M       *
 Cold Springs             9630    9.3     5.1    182    11.7     6.8    172 
 Deer Park                9700   22.9     9.8    234    26.5    14.0    189 
 Hobbs Park              10100   16.3     8.6    190    15.7     8.6    183 
 Kirwin                   9550   14.0     6.2    226    17.2     8.0    215 
 Little Warm              9370   11.3     7.3    155    17.0     9.0    189 
 Owl Creek                8975    5.7     3.3    173     7.2     3.9    185 
 South Pass               9040   21.4    10.2    210    20.1    12.2    165 
 St. Lawrence Alt         8620    5.1     4.6    111     9.4     5.9    159 
 Togwotee Pass            9580   24.6    16.5    149    28.6    17.7    162 
 Townsend Creek           8700    8.5     5.8    147    11.8     7.9    149 
                                                -----                  -----
                Basin Index (%)                  180                    176 
 

BIGHORN BASIN

 Bald Mtn.                9380   13.9    13.0    107    12.4    11.8    105 
 Bear Trap Meadow         8200    3.8     3.8    100     5.1     5.6     91 
 Bone Springs Div         9350   11.7    10.8    108    11.7    10.6    110 
 Grave Springs            8550    4.2     5.6     75     4.9     7.2     68 
 Kirwin                   9550   14.0     6.2    226    17.2     8.0    215 
 Marquette                8760    6.3      -M       *   10.0      -M       *
 Middle Powder            7760    5.1     7.1     72     5.6     8.0     70 
 Owl Creek                8975    5.7     3.3    173     7.2     3.9    185 
 Powder River Pass        9480    4.8     7.2     67     7.9     8.7     91 
 Shell Creek              9580   11.6    10.1    115     9.2     9.7     95 
 Timber Creek             7950    4.5     3.1    145     5.8     4.8    121 
                                                -----                  -----
                Basin Index (%)                  113                    111 
 

SHOSHONE RIVER

 Blackwater               9780   27.6    15.6    177    30.8    14.7    210 
 Evening Star             9200   27.7    17.7    156    30.0    20.2    149 
 Marquette                8760    6.3      -M       *   10.0      -M       *
 Sylvan Road              7120   13.3     8.7    153    24.4    13.0    188 
 Younts Peak              8350   19.6    10.9    180    23.4    11.6    202 
                                                -----                  -----
                Basin Index (%)                  167                    183 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.8     3.8    100     5.1     5.6     91 
 Cloud Peak Reservoir     9860    8.7     9.6     91    10.5     8.7    121 
 Grave Springs            8550    4.2     5.6     75     4.9     7.2     68 
 Hansen Sawmill           8360    6.1     4.3    142     7.9     5.5    144 
 Middle Powder            7760    5.1     7.1     72     5.6     8.0     70 
 Powder River Pass        9480    4.8     7.2     67     7.9     8.7     91 
 Soldier Park             8720    9.3      -M       *    7.8      -M       *
                                                -----                  -----
                Basin Index (%)                   87                     96 
 

TONGUE RIVER

 Big Goose                7990    6.5     5.7    114     7.4     7.3    101 
 Bone Springs Div         9350   11.7    10.8    108    11.7    10.6    110 
 Burgess Junction         7880    7.0     7.4     95     8.1     8.2     99 
 Dome Lake                8880    8.2     7.8    105     9.5     9.2    103 
 Little Goose             8870    6.9      -M       *    9.2      -M       *
 Sucker Creek             8880    7.8     8.0     98     8.0     9.6     83 
 Tie Creek                6870    4.4     3.9    113     8.0     7.8    103 
                                                -----                  -----
                Basin Index (%)                  105                    100 
 

BELLE FOURCHE

 Cole Canyon              5910    3.2     4.5     71     4.8     6.5     74 
                                                -----                  -----
                Basin Index (%)                   71                     74 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.6     5.6     82     5.9     8.5     69 
 North Rapid Creek        6130    4.4     5.3     83     5.3     7.0     76 
                                                -----                  -----
                Basin Index (%)                   83                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   21.4    14.7    146    21.9    16.1    136 
 Blackhall Mtn            9820   30.0      -M       *   29.6      -M       *
 Columbine                9160   21.6    17.3    125    23.1    18.5    125 
 Divide Peak              8880   15.4    14.0    110    17.9    15.4    116 
 Joe Wright              10120   16.2    14.6    111    23.0    18.0    128 
 Laprele Creek            8375    9.1     6.6    138     8.5     8.4    101 
 Med Bow                 10500   29.8      -M       *   27.7      -M       *
 North French Creek      10130   19.2    19.1    101    20.4    19.0    107 
 Never Summer            10280   18.6    14.1    132    15.4      -M       *
 Old Battle              10000   29.8    22.0    135    31.2    25.5    122 
 Rawah                    9020   11.0     7.4    149    13.6     9.9    137 
 Sage Creek Basin         7850   12.8     9.6    133    12.8    10.9    117 
 Sand Lake               10050   22.4    18.5    121    21.2    17.0    125 
 South Brush Creek        8440    8.4     8.4    100     9.3    10.6     88 
 Tower                   10500   35.6    32.4    110    37.1    28.8    129 
 Webber Springs           9250   23.6    16.6    142    27.6    19.1    145 
 Willow Creek Pass        9540   15.1     8.5    178    15.9     9.3    171 
 Zirkel                   9340   34.6    20.8    166    36.0    21.3    169 
                                                -----                  -----
                Basin Index (%)                  129                    129 
 

SWEETWATER

 Deer Park                9700   22.9     9.8    234    26.5    14.0    189 
 Larsen Creek             9000   16.2     8.5    191    18.7      -M       *
 South Pass               9040   21.4    10.2    210    20.1    12.2    165 
                                                -----                  -----
                Basin Index (%)                  212                    178 
 

LOWER N. PLATTE

 Casper Mtn.              7900    7.7     8.8     88     7.5    10.1     74 
 Laprele Creek            8375    9.1     6.6    138     8.5     8.4    101 
 Reno Hill                8400    8.6     8.8     98     9.1    10.1     90 
 Windy Peak               7900    7.2     5.1    141     7.7     7.1    108 
                                                -----                  -----
                Basin Index (%)                  111                     92 
 

LARAMIE RIVER

 Brooklyn Lake           10240   19.4    13.8    141    17.5    14.5    121 
 Cinnabar Park            9574   15.0    15.8     95    17.7    18.1     98 
 Crow Creek               8330    3.8     6.3     60     6.1     7.1     86 
 Deadman Hill            10220   16.4    11.4    144    15.9    11.5    138 
 Rawah                    9020   11.0     7.4    149    13.6     9.9    137 
 Roach                    9700   14.1    11.5    123    16.6    13.3    125 
                                                -----                  -----
                Basin Index (%)                  120                    117 
 

S. PLATTE

 Black Mountain           8920    7.6      -M       *    8.8      -M       *
 Crow Creek               8330    3.8     6.3     60     6.1     7.1     86 
 Deadman Hill            10220   16.4    11.4    144    15.9    11.5    138 
                                                -----                  -----
                Basin Index (%)                  114                    118 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    9.3     8.6    108    12.5    11.0    114 
 Divide Peak              8880   15.4    14.0    110    17.9    15.4    116 
 Elk River                8700   16.7    13.7    122    16.8    14.5    116 
 Little Snake River       8915   26.4    18.2    145    32.1    23.1    139 
 Old Battle              10000   29.8    22.0    135    31.2    25.5    122 
 Sage Creek Basin         7850   12.8     9.6    133    12.8    10.9    117 
 Sandstone RS             8150   10.8     9.8    110    12.9    13.6     95 
 Whiskey Park             8950   21.9    19.1    115    24.0    20.4    118 
                                                -----                  -----
                Basin Index (%)                  124                    119 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   17.1     9.0    190    19.2     9.3    206 
 Blind Bull Sum           8650   32.7    16.1    203      -M    14.5       *
 East Rim Divide          7930   15.4     7.3    211    17.2     8.5    202 
 Elkhart Park G.S.        9400   14.1     8.5    166    19.1     9.4    203 
 Gros Ventre Summit       8750     -M     8.9       *     -M     9.1       *
 Gunsight Pass            9820   15.7     9.5    165    18.9    10.0    189 
 Kendall R.S.             7740   18.4     8.9    207    22.8    10.4    219 
 Loomis Park              8240   21.6    10.5    206    26.0    12.6    206 
 New Fork Lake            8340   13.9     7.5    185    14.2     7.8    182 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   15.8     8.9    178    21.6    10.4    208 
 Spring Creek Divide      9000   28.7    16.4    175    29.6    17.4    170 
 Triple Peak              8500   30.2    15.4    196    31.1    18.0    173 
                                                -----                  -----
                Basin Index (%)                  189                    193 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    8.8      -M       *   11.4      -M       *
 Buck Pasture             9632   15.0      -M       *   17.9      -M       *
 EF Blacks Fork GS        9360   12.6      -M       *    9.9      -M       *
 Hams Fork                7840   14.1     8.3    170    16.0     8.2    195 
 Hewinta                  9519    9.9     6.9    143    11.5     9.8    117 
 Hickerson Park           9145    6.5     5.0    130     6.5     6.9     94 
 Hole-in-Rock             9150    5.2     4.7    111     7.1     6.4    111 
 Indian Creek             9425   28.9    16.5    175      -M    16.0       *
 Kelley R.S.              8180   20.4    10.5    194    24.1    13.1    184 
 Spirit Lk               10235   10.7      -M       *   12.2      -M       *
 Steel Creek Park        10200   12.4    10.2    122    14.4    11.2    129 
                                                -----                  -----
                Basin Index (%)                  157                    143 
 

UPPER BEAR RIVER

 Bear River RS            8777   10.8      -M       *   13.0      -M       *
 Bug Lake                 7950   26.0    13.1    198    24.3    13.9    175 
 Burts Miller Ranch       8000    5.5      -M       *    6.8      -M       *
 Chalk Creek #1           8993   25.7    15.9    162    27.0    17.6    153 
 Hayden Fork              9212   18.0    10.8    167      -M    14.8       *
 Kelley R.S.              8180   20.4    10.5    194    24.1    13.1    184 
 Lily Lake                9156   12.5     8.9    140    14.3    12.0    119 
 Monte Cristo             8960   26.4    18.7    141    25.0    18.3    137 
 Salt River Summit        7760   16.9     9.3    182    22.5    12.1    186 
                                                -----                  -----
                Basin Index (%)                  167                    158 

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


 -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.