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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 11:23p, 8/21/18
Temperature 56.4°F
Wind 2.0 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 FRIDAY: FEBRUARY 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   20.8    11.5    181      -M    14.9       *
 Black Bear               8170     -M    25.6       *   37.4    26.5    141 
 Blind Bull Sum           8650   31.1    15.1    206      -M    13.7       *
 Cottonwood Creek         7670   20.1    13.8    146    27.2    16.9    161 
 East Rim Divide          7930   15.7     7.0    224    16.9     8.2    206 
 Grand Targhee            9260   31.8    25.0    127    30.0    22.1    136 
 Granite Creek            6770   23.7    11.6    204    25.4    14.5    175 
 Grassy Lake              7265     -M    22.2       *   41.3    25.6    161 
 Gros Ventre Summit       8750   13.9     8.7    160    17.8     8.7    205 
 Gunsight Pass            9820   15.3     8.8    174    18.4     9.5    194 
 Lewis Lake Divide        7850   27.8    21.8    128      -M    24.8       *
 Phillips Bench           8200     -M    16.9       *     -M    19.5       *
 Salt River Summit        7760   16.2     8.5    191    21.7    11.4    190 
 Snake River Station      6920   17.2    12.2    141    27.9    16.4    170 
 Spring Creek Divide      9000   27.1    15.7    173    28.8    16.5    175 
 Thumb Divide             7980   16.1    10.0    161    20.3    12.9    157 
 Togwotee Pass            9580   24.2    15.7    154    28.0    16.9    166 
 Two Ocean Plateau        9240     -M    18.9       *     -M    18.5       *
 Willow Creek             8380   25.1    18.2    138    35.6    23.0    155 
 Younts Peak              8350   19.7    10.2    193    22.7    11.1    205 
                                                -----                  -----
                Basin Index (%)                  162                    166 
 

MADISON-GALLATIN

 Black Bear               8170     -M    25.6       *   37.4    26.5    141 
 Canyon                   7870   13.4     8.7    154    19.8    11.5    172 
 Madison Plateau          7750   19.3    15.1    128    26.8    18.4    146 
 West Yellowstone         6700    9.5     7.3    130    17.7    10.3    172 
 Whiskey Creek            6800   11.7    10.0    117    19.6    14.1    139 
                                                -----                  -----
                Basin Index (%)                  131                    150 
 

YELLOWSTONE

 Beartooth Lake           9360     -M    14.8       *     -M    13.7       *
 Burnt Mtn                5880    5.2     2.9    179    10.1     8.4    120 
 Canyon                   7870   13.4     8.7    154    19.8    11.5    172 
 Cole Creek               7850    7.3     8.8     83     5.8     8.1     72 
 Evening Star             9200   26.4    16.7    158    29.4    19.2    153 
 Fisher Creek             9100     -M    22.0       *   31.8    22.1    144 
 Northeast Entrance       7350    9.3     6.9    135    14.8     8.8    168 
 Parker Peak              9400   22.9    13.7    167    22.9    12.1    189 
 Sylvan Lake              8420   17.6    13.5    130    28.3    15.7    180 
 Thumb Divide             7980   16.1    10.0    161    20.3    12.9    157 
 Two Ocean Plateau        9240     -M    18.9       *     -M    18.5       *
 White Mill               8700   21.8    15.6    140    24.0    16.5    145 
 Wolverine                7650     -M     7.4       *     -M     8.7       *
                                                -----                  -----
                Basin Index (%)                  145                    153 
 

WIND RIVER

 Burroughs Creek          8750   18.0      -M       *   19.9      -M       *
 Castle Creek             8400   10.1      -M       *   12.4      -M       *
 Cold Springs             9630    9.1     4.8    190      -M     6.5       *
 Deer Park                9700   21.6     9.5    227    25.2    13.2    191 
 Hobbs Park              10100   15.6     8.1    193    14.8     8.2    180 
 Kirwin                   9550   13.7     6.1    225    16.6     7.6    218 
 Little Warm              9370   10.9     6.7    163      -M     8.7       *
 Owl Creek                8975    5.8     3.2    181     7.3     3.7    197 
 South Pass               9040   20.3     9.8    207    18.9    11.6    163 
 St. Lawrence Alt         8620    5.1     4.3    119     9.2     5.6    164 
 Togwotee Pass            9580   24.2    15.7    154    28.0    16.9    166 
 Townsend Creek           8700    8.2     5.7    144    11.0     7.5    147 
                                                -----                  -----
                Basin Index (%)                  182                    176 
 

BIGHORN BASIN

 Bald Mtn.                9380   13.9    11.7    119    12.3    11.4    108 
 Bear Trap Meadow         8200    3.9     3.6    108     5.2     5.4     96 
 Bone Springs Div         9350   11.7    10.1    116    11.8    10.2    116 
 Grave Springs            8550    4.3     5.2     83     5.0     6.8     74 
 Kirwin                   9550   13.7     6.1    225    16.6     7.6    218 
 Marquette                8760    6.3      -M       *   10.2      -M       *
 Middle Powder            7760    5.1     6.8     75     5.6     7.8     72 
 Owl Creek                8975    5.8     3.2    181     7.3     3.7    197 
 Powder River Pass        9480    4.8     6.9     70     7.8     8.3     94 
 Shell Creek              9580   11.6     9.6    121     9.0     9.4     96 
 Timber Creek             7950    4.5     3.1    145     5.8     4.7    123 
                                                -----                  -----
                Basin Index (%)                  120                    115 
 

SHOSHONE RIVER

 Blackwater               9780   26.5    15.1    175    29.1    14.0    208 
 Evening Star             9200   26.4    16.7    158    29.4    19.2    153 
 Marquette                8760    6.3      -M       *   10.2      -M       *
 Sylvan Road              7120   13.1     8.2    160    23.9    12.5    191 
 Younts Peak              8350   19.7    10.2    193    22.7    11.1    205 
                                                -----                  -----
                Basin Index (%)                  171                    185 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.9     3.6    108     5.2     5.4     96 
 Cloud Peak Reservoir     9860    8.7     9.0     97    10.3     8.4    123 
 Grave Springs            8550    4.3     5.2     83     5.0     6.8     74 
 Hansen Sawmill           8360    6.0     4.2    143     7.9     5.3    149 
 Middle Powder            7760    5.1     6.8     75     5.6     7.8     72 
 Powder River Pass        9480    4.8     6.9     70     7.8     8.3     94 
 Soldier Park             8720    9.4      -M       *    7.8      -M       *
                                                -----                  -----
                Basin Index (%)                   92                    100 
 

TONGUE RIVER

 Big Goose                7990    6.4     5.3    121     7.3     7.0    104 
 Bone Springs Div         9350   11.7    10.1    116    11.8    10.2    116 
 Burgess Junction         7880    6.9     7.1     97     7.9     7.9    100 
 Dome Lake                8880    8.0     7.3    110     9.4     8.8    107 
 Little Goose             8870    7.0      -M       *    9.2      -M       *
 Sucker Creek             8880    7.8     7.5    104     7.8     9.2     85 
 Tie Creek                6870    4.6     3.6    128     8.0     7.5    107 
                                                -----                  -----
                Basin Index (%)                  111                    103 
 

BELLE FOURCHE

 Cole Canyon              5910    3.6     3.9     92     4.7     6.2     76 
                                                -----                  -----
                Basin Index (%)                   92                     76 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.8     5.3     91     5.9     8.2     72 
 North Rapid Creek        6130    4.7     4.9     96     5.3     6.6     80 
                                                -----                  -----
                Basin Index (%)                   93                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   21.0    14.0    150    21.5    15.2    141 
 Blackhall Mtn            9820   28.7      -M       *   29.0      -M       *
 Columbine                9160   21.1    16.0    132    23.1    17.5    132 
 Divide Peak              8880   13.9    13.5    103    16.5    14.6    113 
 Joe Wright              10120   15.6    13.5    116    22.4    17.0    132 
 Laprele Creek            8375    8.6     5.9    146     7.8     8.1     96 
 Med Bow                 10500   28.7      -M       *   26.9      -M       *
 North French Creek      10130   18.2    17.3    105    19.7    17.9    110 
 Never Summer            10280   17.7    13.2    134    14.7      -M       *
 Old Battle              10000   27.9    20.8    134    29.3    24.0    122 
 Rawah                    9020   10.3     6.9    149    13.3     9.5    140 
 Sage Creek Basin         7850   11.7     9.0    130    11.9    10.5    113 
 Sand Lake               10050   21.5    17.6    122    20.1    16.0    126 
 South Brush Creek        8440    7.8     7.6    103     9.2    10.1     91 
 Tower                   10500   34.0    30.3    112    36.5    27.2    134 
 Webber Springs           9250   22.7    15.4    147    26.3    18.1    145 
 Willow Creek Pass        9540     -M     8.1       *     -M     8.8       *
 Zirkel                   9340   33.2    19.6    169    34.8    20.3    171 
                                                -----                  -----
                Basin Index (%)                  129                    129 
 

SWEETWATER

 Deer Park                9700   21.6     9.5    227    25.2    13.2    191 
 Larsen Creek             9000   15.4     8.0    192    17.9      -M       *
 South Pass               9040   20.3     9.8    207    18.9    11.6    163 
                                                -----                  -----
                Basin Index (%)                  210                    178 
 

LOWER N. PLATTE

 Casper Mtn.              7900    7.5     8.1     93     7.3     9.6     76 
 Laprele Creek            8375    8.6     5.9    146     7.8     8.1     96 
 Reno Hill                8400    8.3     8.2    101     8.8     9.5     93 
 Windy Peak               7900    6.8     4.5    151     7.2     6.7    107 
                                                -----                  -----
                Basin Index (%)                  117                     92 
 

LARAMIE RIVER

 Brooklyn Lake           10240   18.9    12.7    149    17.1    13.7    125 
 Cinnabar Park            9574   14.7    14.1    104    17.4    17.0    102 
 Crow Creek               8330    4.2     5.8     72     6.1     6.7     91 
 Deadman Hill            10220   15.9    10.8    147    15.3    10.9    140 
 Rawah                    9020   10.3     6.9    149    13.3     9.5    140 
 Roach                    9700   13.7    10.7    128    16.2    12.6    129 
                                                -----                  -----
                Basin Index (%)                  127                    121 
 

S. PLATTE

 Black Mountain           8920    7.5      -M       *    8.7      -M       *
 Crow Creek               8330    4.2     5.8     72     6.1     6.7     91 
 Deadman Hill            10220   15.9    10.8    147    15.3    10.9    140 
                                                -----                  -----
                Basin Index (%)                  121                    122 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.4     7.7    109    12.1    10.3    117 
 Divide Peak              8880   13.9    13.5    103    16.5    14.6    113 
 Elk River                8700   16.0    12.5    128    16.1    13.6    118 
 Little Snake River       8915   24.9    17.0    146    30.7    22.1    139 
 Old Battle              10000   27.9    20.8    134    29.3    24.0    122 
 Sage Creek Basin         7850   11.7     9.0    130    11.9    10.5    113 
 Sandstone RS             8150   10.6     8.9    119    12.0    12.8     94 
 Whiskey Park             8950   22.0    17.4    126    23.4    19.2    122 
                                                -----                  -----
                Basin Index (%)                  127                    120 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   16.0     8.7    184    18.0     8.8    205 
 Blind Bull Sum           8650   31.1    15.1    206      -M    13.7       *
 East Rim Divide          7930   15.7     7.0    224    16.9     8.2    206 
 Elkhart Park G.S.        9400   13.8     8.0    172    18.3     9.0    203 
 Gros Ventre Summit       8750   13.9     8.7    160    17.8     8.7    205 
 Gunsight Pass            9820   15.3     8.8    174    18.4     9.5    194 
 Kendall R.S.             7740   17.3     8.3    208      -M     9.9       *
 Loomis Park              8240   21.3    10.2    209    23.3    12.0    194 
 New Fork Lake            8340   13.9     7.1    196    13.8     7.5    184 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060     -M     8.4       *   20.4     9.9    206 
 Spring Creek Divide      9000   27.1    15.7    173    28.8    16.5    175 
 Triple Peak              8500   28.9    14.4    201    28.7    17.1    168 
                                                -----                  -----
                Basin Index (%)                  191                    191 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    8.5      -M       *   11.0      -M       *
 Buck Pasture             9700   14.4      -M       *   17.0      -M       *
 EF Blacks Fork GS        9360   11.9      -M       *    9.8      -M       *
 Hams Fork                7840   13.3     7.8    171    15.2     7.8    195 
 Hewinta                  9519    8.8     6.4    138    11.0     9.2    120 
 Hickerson Park           9145    6.1     4.3    142     6.5     6.5    100 
 Hole-in-Rock             9150    5.2     4.3    121     7.1     6.1    116 
 Indian Creek             9425   26.7    15.6    171      -M    15.1       *
 Kelley R.S.              8180   18.3     9.6    191    23.3    12.4    188 
 Spirit Lk               10235   10.2      -M       *   11.8      -M       *
 Steel Creek Park        10200   12.2     9.5    128    13.9    10.6    131 
                                                -----                  -----
                Basin Index (%)                  158                    146 
 

UPPER BEAR RIVER

 Bear River RS            8777   10.2      -M       *   12.3      -M       *
 Bug Lake                 7950   25.2    12.2    207    23.7    13.2    180 
 Burts Miller Ranch       8000    5.3      -M       *    6.3      -M       *
 Chalk Creek #1           8993   24.1    14.6    165    25.5    16.7    153 
 Hayden Fork              9212   16.6     9.5    175    21.7    14.0    155 
 Kelley R.S.              8180   18.3     9.6    191    23.3    12.4    188 
 Lily Lake                9156   12.3     8.0    154    13.8    11.3    122 
 Monte Cristo             8960   24.8    17.2    144      -M    17.4       *
 Salt River Summit        7760   16.2     8.5    191    21.7    11.4    190 
                                                -----                  -----
                Basin Index (%)                  173                    164 

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


 -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.