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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 8:43p, 5/20/18
Temperature 49.3°F
Wind 1.0 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 SATURDAY: FEBRUARY 11 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   21.6    11.7    185    29.2    15.0    195 
 Black Bear               8170     -M    26.0       *   37.9    26.6    142 
 Blind Bull Sum           8650   33.3    15.3    218      -M    13.8       *
 Cottonwood Creek         7670   21.0    13.9    151    27.7    17.0    163 
 East Rim Divide          7930   15.5     7.1    218    17.2     8.2    210 
 Grand Targhee            9260   32.7    25.2    130    30.5    22.2    137 
 Granite Creek            6770   23.7    11.7    203    26.0    14.6    178 
 Grassy Lake              7265   29.8    22.5    132    41.4    25.7    161 
 Gros Ventre Summit       8750   14.0     8.8    159    18.2     8.8    207 
 Gunsight Pass            9820   15.6     8.8    177    18.6     9.6    194 
 Lewis Lake Divide        7850   28.9    22.1    131    39.8    24.9    160 
 Phillips Bench           8200   25.5    17.1    149    35.2    19.6    180 
 Salt River Summit        7760   17.0     8.6    198    21.8    11.5    190 
 Snake River Station      6920   17.5    12.4    141    28.3    16.6    170 
 Spring Creek Divide      9000   28.9    15.9    182    29.4    16.6    177 
 Thumb Divide             7980   17.0    10.1    168    20.6    12.9    160 
 Togwotee Pass            9580   24.7    15.9    155    28.5    17.0    168 
 Two Ocean Plateau        9240     -M    19.0       *     -M    18.6       *
 Willow Creek             8380   26.9    18.3    147    36.1    23.1    156 
 Younts Peak              8350   19.6    10.3    190    23.3    11.2    208 
                                                -----                  -----
                Basin Index (%)                  162                    169 
 

MADISON-GALLATIN

 Black Bear               8170     -M    26.0       *   37.9    26.6    142 
 Canyon                   7870   13.6     8.8    155    20.1    11.6    173 
 Madison Plateau          7750   19.2    15.2    126    27.2    18.5    147 
 West Yellowstone         6700    9.9     7.4    134    18.1    10.4    174 
 Whiskey Creek            6800   11.9    10.1    118    20.0    14.1    142 
                                                -----                  -----
                Basin Index (%)                  132                    152 
 

YELLOWSTONE

 Beartooth Lake           9360   23.5    14.9    158    19.5    13.8    141 
 Burnt Mtn                5880    5.0     3.0    167    10.1     8.4    120 
 Canyon                   7870   13.6     8.8    155    20.1    11.6    173 
 Cole Creek               7850    7.4     8.8     84     5.7     8.1     70 
 Evening Star             9200   27.5    16.8    164    29.5    19.4    152 
 Fisher Creek             9100   29.2    22.1    132    33.4    22.3    150 
 Northeast Entrance       7350    9.4     7.0    134    15.1     8.9    170 
 Parker Peak              9400   23.8    13.7    174    22.9    12.2    188 
 Sylvan Lake              8420   18.0    13.5    133    28.9    15.8    183 
 Thumb Divide             7980   17.0    10.1    168    20.6    12.9    160 
 Two Ocean Plateau        9240     -M    19.0       *     -M    18.6       *
 White Mill               8700   22.6    15.7    144    24.5    16.6    148 
 Wolverine                7650     -M     7.5       *     -M     8.7       *
                                                -----                  -----
                Basin Index (%)                  147                    154 
 

WIND RIVER

 Burroughs Creek          8750   18.3      -M       *   20.4      -M       *
 Castle Creek             8400   10.1      -M       *   12.3      -M       *
 Cold Springs             9630     -M     4.9       *   11.4     6.6    173 
 Deer Park                9700   22.9     9.5    241    26.5    13.4    198 
 Hobbs Park              10100   16.3     8.2    199    15.4     8.3    186 
 Kirwin                   9550   13.9     6.1    228    17.0     7.7    221 
 Little Warm              9370   11.3     6.8    166    16.8     8.7    193 
 Owl Creek                8975    5.7     3.2    178     7.2     3.8    189 
 South Pass               9040   21.4     9.8    218    19.9    11.7    170 
 St. Lawrence Alt         8620    5.1     4.3    119     9.5     5.7    167 
 Togwotee Pass            9580   24.7    15.9    155    28.5    17.0    168 
 Townsend Creek           8700    8.5     5.7    149    11.4     7.6    150 
                                                -----                  -----
                Basin Index (%)                  187                    181 
 

BIGHORN BASIN

 Bald Mtn.                9380   13.9    11.9    117    12.3    11.5    107 
 Bear Trap Meadow         8200    3.8     3.7    103     5.2     5.4     96 
 Bone Springs Div         9350   11.7    10.2    115    11.7    10.2    115 
 Grave Springs            8550    4.2     5.3     79     5.0     7.0     71 
 Kirwin                   9550   13.9     6.1    228    17.0     7.7    221 
 Marquette                8760    6.2      -M       *    9.8      -M       *
 Middle Powder            7760    5.1     6.8     75     5.5     7.9     70 
 Owl Creek                8975    5.7     3.2    178     7.2     3.8    189 
 Powder River Pass        9480    4.8     6.9     70     7.8     8.4     93 
 Shell Creek              9580   11.6     9.7    120     9.0     9.4     96 
 Timber Creek             7950    4.4     3.1    142     5.8     4.8    121 
                                                -----                  -----
                Basin Index (%)                  118                    114 
 

SHOSHONE RIVER

 Blackwater               9780   27.3    15.2    180    29.2    14.1    207 
 Evening Star             9200   27.5    16.8    164    29.5    19.4    152 
 Marquette                8760    6.2      -M       *    9.8      -M       *
 Sylvan Road              7120   13.3     8.3    160    24.4    12.6    194 
 Younts Peak              8350   19.6    10.3    190    23.3    11.2    208 
                                                -----                  -----
                Basin Index (%)                  173                    186 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.8     3.7    103     5.2     5.4     96 
 Cloud Peak Reservoir     9860    8.8     9.1     97    10.3     8.4    123 
 Grave Springs            8550    4.2     5.3     79     5.0     7.0     71 
 Hansen Sawmill           8360    6.1     4.2    145     7.9     5.4    146 
 Middle Powder            7760    5.1     6.8     75     5.5     7.9     70 
 Powder River Pass        9480    4.8     6.9     70     7.8     8.4     93 
 Soldier Park             8720    9.4      -M       *    7.8      -M       *
                                                -----                  -----
                Basin Index (%)                   91                     98 
 

TONGUE RIVER

 Big Goose                7990    6.4     5.4    119     7.3     7.0    104 
 Bone Springs Div         9350   11.7    10.2    115    11.7    10.2    115 
 Burgess Junction         7880    7.0     7.2     97     7.9     8.0     99 
 Dome Lake                8880    8.1     7.4    109     9.4     8.9    106 
 Little Goose             8870    7.0      -M       *    9.2      -M       *
 Sucker Creek             8880    7.8     7.6    103     8.0     9.3     86 
 Tie Creek                6870    4.5     3.7    122     8.0     7.5    107 
                                                -----                  -----
                Basin Index (%)                  110                    103 
 

BELLE FOURCHE

 Cole Canyon              5910    3.5     4.1     85     4.7     6.3     75 
                                                -----                  -----
                Basin Index (%)                   85                     75 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.6     5.4     85     5.9     8.3     71 
 North Rapid Creek        6130    4.7     5.0     94     5.2     6.8     76 
                                                -----                  -----
                Basin Index (%)                   89                     74 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   21.0    14.2    148    21.5    15.2    141 
 Blackhall Mtn            9820   29.0      -M       *   29.4      -M       *
 Columbine                9160   21.1    16.3    129    23.1    17.7    131 
 Divide Peak              8880   14.7    13.6    108    17.0    14.7    116 
 Joe Wright              10120   15.6    13.6    115    22.4    17.2    130 
 Laprele Creek            8375    8.7     6.0    145     7.9     8.1     98 
 Med Bow                 10500   29.0      -M       *   27.1      -M       *
 North French Creek      10130   18.5    17.6    105    19.9    18.1    110 
 Never Summer            10280   17.9    13.3    135    14.8      -M       *
 Old Battle              10000   28.7    21.0    137    29.7    24.1    123 
 Rawah                    9020   10.2     7.0    146    13.3     9.5    140 
 Sage Creek Basin         7850   12.0     9.1    132    12.4    10.5    118 
 Sand Lake               10050   21.8    17.7    123    20.3    16.2    125 
 South Brush Creek        8440    7.9     7.7    103     9.3    10.1     92 
 Tower                   10500   34.6    30.7    113    36.7    27.5    133 
 Webber Springs           9250   23.3    15.6    149    26.9    18.2    148 
 Willow Creek Pass        9540   14.4     8.1    178    15.4     8.9    173 
 Zirkel                   9340   33.7    19.7    171    34.9    20.4    171 
                                                -----                  -----
                Basin Index (%)                  132                    131 
 

SWEETWATER

 Deer Park                9700   22.9     9.5    241    26.5    13.4    198 
 Larsen Creek             9000   16.2     8.1    200    18.7      -M       *
 South Pass               9040   21.4     9.8    218    19.9    11.7    170 
                                                -----                  -----
                Basin Index (%)                  221                    185 
 

LOWER N. PLATTE

 Casper Mtn.              7900    7.6     8.2     93     7.3     9.7     75 
 Laprele Creek            8375    8.7     6.0    145     7.9     8.1     98 
 Reno Hill                8400    8.3     8.3    100     8.8     9.6     92 
 Windy Peak               7900    7.0     4.6    152     7.2     6.8    106 
                                                -----                  -----
                Basin Index (%)                  117                     91 
 

LARAMIE RIVER

 Brooklyn Lake           10240   19.1    12.9    148    17.1    13.8    124 
 Cinnabar Park            9574   14.7    14.4    102    17.4    17.1    102 
 Crow Creek               8330    3.9     5.8     67     6.1     6.7     91 
 Deadman Hill            10220   15.9    10.9    146    15.4    11.0    140 
 Rawah                    9020   10.2     7.0    146    13.3     9.5    140 
 Roach                    9700   13.8    10.8    128    16.3    12.7    128 
                                                -----                  -----
                Basin Index (%)                  126                    121 
 

S. PLATTE

 Black Mountain           8920    7.4      -M       *    8.6      -M       *
 Crow Creek               8330    3.9     5.8     67     6.1     6.7     91 
 Deadman Hill            10220   15.9    10.9    146    15.4    11.0    140 
                                                -----                  -----
                Basin Index (%)                  119                    121 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.2     7.8    105    12.2    10.4    117 
 Divide Peak              8880   14.7    13.6    108    17.0    14.7    116 
 Elk River                8700   15.8    12.7    124    16.1    13.8    117 
 Little Snake River       8915   25.3    17.2    147    31.0    22.2    140 
 Old Battle              10000   28.7    21.0    137    29.7    24.1    123 
 Sage Creek Basin         7850   12.0     9.1    132    12.4    10.5    118 
 Sandstone RS             8150   10.8     9.1    119    12.1    12.9     94 
 Whiskey Park             8950   21.9    17.6    124    23.6    19.3    122 
                                                -----                  -----
                Basin Index (%)                  127                    120 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   17.2     8.7    198    19.1     8.9    215 
 Blind Bull Sum           8650   33.3    15.3    218      -M    13.8       *
 East Rim Divide          7930   15.5     7.1    218    17.2     8.2    210 
 Elkhart Park G.S.        9400   14.1     8.0    176    18.7     9.1    205 
 Gros Ventre Summit       8750   14.0     8.8    159    18.2     8.8    207 
 Gunsight Pass            9820   15.6     8.8    177    18.6     9.6    194 
 Kendall R.S.             7740   18.4     8.4    219      -M     9.9       *
 Loomis Park              8240   21.8    10.3    212    25.6    12.1    212 
 New Fork Lake            8340   14.0     7.2    194    14.0     7.6    184 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   16.1     8.5    189    21.3     9.9    215 
 Spring Creek Divide      9000   28.9    15.9    182    29.4    16.6    177 
 Triple Peak              8500   30.8    14.7    210    31.0    17.2    180 
                                                -----                  -----
                Basin Index (%)                  197                    197 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    8.4      -M       *   11.0      -M       *
 Buck Pasture             9700   14.6      -M       *   17.1      -M       *
 EF Blacks Fork GS        9360   12.0      -M       *     -M      -M       *
 Hams Fork                7840   14.1     7.9    178    15.9     7.8    204 
 Hewinta                  9519    8.6     6.5    132    11.3     9.3    122 
 Hickerson Park           9145    6.1     4.4    139     6.5     6.6     98 
 Hole-in-Rock             9150    5.1     4.4    116     7.1     6.2    115 
 Indian Creek             9425   28.6    15.8    181      -M    15.2       *
 Kelley R.S.              8180   19.1     9.7    197    24.0    12.4    194 
 Spirit Lk               10235   10.2      -M       *   11.8      -M       *
 Steel Creek Park        10200   12.2     9.6    127    13.9    10.7    130 
                                                -----                  -----
                Basin Index (%)                  161                    148 
 

UPPER BEAR RIVER

 Bear River RS            8777   10.1      -M       *   12.6      -M       *
 Bug Lake                 7950   26.0    12.4    210    24.1    13.3    181 
 Burts Miller Ranch       8000    5.2      -M       *    6.4      -M       *
 Chalk Creek #1           8993   25.1    14.9    168    25.6    16.8    152 
 Hayden Fork              9212   17.0     9.7    175      -M    14.1       *
 Kelley R.S.              8180   19.1     9.7    197    24.0    12.4    194 
 Lily Lake                9156   12.0     8.2    146    14.0    11.5    122 
 Monte Cristo             8960   26.0    17.6    148      -M    17.5       *
 Salt River Summit        7760   17.0     8.6    198    21.8    11.5    190 
                                                -----                  -----
                Basin Index (%)                  175                    167 

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


 -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.