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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 11:08p, 11/13/18
Temperature 27.0°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 FRIDAY: MAY 12 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   11.4     3.3    345    42.3    23.8    178 
 Black Bear               8170   46.9    36.8    127    59.8    43.4    138 
 Blind Bull Sum           8650     -M    22.4       *   39.2    22.5    174 
 Cottonwood Creek         7670   21.9    12.1    181    44.1    29.1    152 
 East Rim Divide          7930     .1     5.4      2    23.1    13.7    169 
 Grand Targhee            9260   56.9    46.1    123    51.8    36.3    143 
 Granite Creek            6770   14.3     4.0    358    38.4    22.3    172 
 Grassy Lake              7265   29.1    24.6    118    61.4    40.8    150 
 Gros Ventre Summit       8750   16.2     9.4    172    26.7    15.5    172 
 Gunsight Pass            9820   21.8    12.3    177    28.6    17.2    166 
 Lewis Lake Divide        7850   40.3    28.5    141    59.8    40.0    150 
 Phillips Bench           8200   35.0    22.8    154    50.8    32.2    158 
 Salt River Summit        7760    7.5     3.2    234    32.0    19.3    166 
 Snake River Station      6920    2.1     1.1    191*   39.2    25.7    153 
 Spring Creek Divide      9000   41.6    23.3    179    44.9    27.4    164 
 Thumb Divide             7980    9.7     7.4    131    30.6    22.0    139 
 Togwotee Pass            9580   33.6    25.3    133    43.4    28.8    151 
 Two Ocean Plateau        9240     -M    29.5       *     -M    31.8       *
 Willow Creek             8380     -M    20.6       *   57.7    39.6    146 
 Younts Peak              8350   10.4    14.9     70    33.8    18.8    180 
                                                -----                  -----
                Basin Index (%)                  142                    156 
 

MADISON-GALLATIN

 Black Bear               8170   46.9    36.8    127    59.8    43.4    138 
 Canyon                   7870   11.5     6.7    172    28.9    19.1    151 
 Madison Plateau          7750   21.4    19.0    113    40.1    30.2    133 
 West Yellowstone         6700     .0      .0       *   26.0    16.8    155 
 Whiskey Creek            6800    6.7     9.9     68    30.0    23.3    129 
                                                -----                  -----
                Basin Index (%)                  119                    139 
 

YELLOWSTONE

 Beartooth Lake           9360   33.3    22.9    145    31.8    23.3    136 
 Burnt Mtn                5880     .0      .0       *   18.6    18.4    101 
 Canyon                   7870   11.5     6.7    172    28.9    19.1    151 
 Cole Creek               7850   13.5    17.2     78    14.3    18.6     77 
 Evening Star             9200   35.3    25.6    138    49.6    32.1    155 
 Fisher Creek             9100   46.5    34.4    135    52.9    36.9    143 
 Northeast Entrance       7350     .0      .6      0*   23.2    14.8    157 
 Parker Peak              9400   37.6    22.1    170    40.1    21.5    187 
 Sylvan Lake              8420   22.0    17.8    124    42.1    26.6    158 
 Thumb Divide             7980    9.7     7.4    131    30.6    22.0    139 
 Two Ocean Plateau        9240     -M    29.5       *     -M    31.8       *
 White Mill               8700   36.3    24.9    146    40.1    27.8    144 
 Wolverine                7650     .0      .0       *   23.8    14.9    160 
                                                -----                  -----
                Basin Index (%)                  137                    143 
 

WIND RIVER

 Burroughs Creek          8750   12.5      -M       *   29.4      -M       *
 Castle Creek             8400     .0      -M       *   17.7      -M       *
 Cold Springs             9630    9.3     1.0    930    22.5    13.8    163 
 Deer Park                9700   32.8    14.3    229    43.5    25.3    172 
 Hobbs Park              10100   32.1    15.8    203    34.9    18.3    191 
 Kirwin                   9550   20.9    10.8    194    29.4    15.1    195 
 Little Warm              9370   14.3     6.6    217    27.6    16.6    166 
 Owl Creek                8975     .4      .4    100*   15.6     9.0    173 
 South Pass               9040   29.3    11.2    262    33.9    21.8    156 
 St. Lawrence Alt         8620     .9      .6    150*   20.8    12.9    161 
 Togwotee Pass            9580   33.6    25.3    133    43.4    28.8    151 
 Townsend Creek           8700   15.1     2.8    539    28.4    16.3    174 
                                                -----                  -----
                Basin Index (%)                  212                    169 
 

BIGHORN BASIN

 Bald Mtn.                9380   21.6    20.8    104    21.6    21.4    101 
 Bear Trap Meadow         8200     .0      .0       *   14.9    11.9    125 
 Bone Springs Div         9350   20.1    16.5    122    22.2    20.0    111 
 Grave Springs            8550    7.5     7.3    103    13.7    14.5     94 
 Kirwin                   9550   20.9    10.8    194    29.4    15.1    195 
 Marquette                8760   16.1      -M       *   23.9      -M       *
 Middle Powder            7760    8.0    10.2     78    14.5    15.6     93 
 Owl Creek                8975     .4      .4    100*   15.6     9.0    173 
 Powder River Pass        9480    6.7     8.9     75    18.2    16.5    110 
 Shell Creek              9580   16.8    16.8    100    18.7    17.8    105 
 Timber Creek             7950     .5     1.1     45    15.1    11.4    132 
                                                -----                  -----
                Basin Index (%)                  110                    120 
 

SHOSHONE RIVER

 Blackwater               9780   40.3    24.5    164    46.7    24.9    188 
 Evening Star             9200   35.3    25.6    138    49.6    32.1    155 
 Marquette                8760   16.1      -M       *   23.9      -M       *
 Sylvan Road              7120     .0      .7      0*   32.5    19.5    167 
 Younts Peak              8350   10.4    14.9     70    33.8    18.8    180 
                                                -----                  -----
                Basin Index (%)                  131                    171 
 

POWDER RIVER

 Bear Trap Meadow         8200     .0      .0       *   14.9    11.9    125 
 Cloud Peak Reservoir     9860   19.0    16.7    114    26.6    18.6    143 
 Grave Springs            8550    7.5     7.3    103    13.7    14.5     94 
 Hansen Sawmill           8360   10.7      .6   1783*   20.0    12.2    164 
 Middle Powder            7760    8.0    10.2     78    14.5    15.6     93 
 Powder River Pass        9480    6.7     8.9     75    18.2    16.5    110 
 Soldier Park             8720   13.0      -M       *   20.7      -M       *
                                                -----                  -----
                Basin Index (%)                  119                    121 
 

TONGUE RIVER

 Big Goose                7990   11.4    10.0    114    20.2    16.3    124 
 Bone Springs Div         9350   20.1    16.5    122    22.2    20.0    111 
 Burgess Junction         7880    9.9    11.3     88    16.1    16.3     99 
 Dome Lake                8880   15.9    10.9    146    22.1    18.3    121 
 Little Goose             8870   14.6      -M       *   24.3      -M       *
 Sucker Creek             8880   12.6    12.5    101    19.2    19.3     99 
 Tie Creek                6870     .0      .9      0    19.9    16.4    121 
                                                -----                  -----
                Basin Index (%)                  113                    112 
 

BELLE FOURCHE

 Cole Canyon              5910     .0      .0       *   12.3    14.0     88 
                                                -----                  -----
                Basin Index (%)                     *                    88 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0      .0       *   12.3    15.9     77 
 North Rapid Creek        6130     .0      .0       *   10.2    14.0     73 
                                                -----                  -----
                Basin Index (%)                     *                    75 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   23.9    22.3    107    30.4    27.9    109 
 Blackhall Mtn            9820   33.4      -M       *   42.2      -M       *
 Columbine                9160    4.8    11.2     43    32.5    29.8    109 
 Divide Peak              8880    3.8    13.0     29    26.3    25.7    102 
 Joe Wright              10120   16.7    23.2     72    34.0    31.7    107 
 Laprele Creek            8375     .2     1.1     18    15.7    16.3     96 
 Med Bow                 10500   37.5      -M       *   41.3      -M       *
 North French Creek      10130   25.1    32.5     77    34.3    32.7    105 
 Never Summer            10280   23.6    22.2    106    23.1      -M       *
 Old Battle              10000   37.4    36.8    102    43.6    41.1    106 
 Rawah                    9020     .2     2.1     10    20.8    18.6    112 
 Sage Creek Basin         7850     -M      .0       *   18.3    17.0    108 
 Sand Lake               10050   32.0    31.6    101    32.3    30.9    105 
 South Brush Creek        8440     .5     3.6     14    16.6    19.3     86 
 Tower                   10500   42.8    50.9     84    51.9    46.8    111 
 Webber Springs           9250   17.1    18.4     93    37.5    31.3    120 
 Willow Creek Pass        9540   15.9    12.6    126    21.0    16.6    127 
 Zirkel                   9340   17.1    18.9     90    47.4    32.9    144 
                                                -----                  -----
                Basin Index (%)                   87                    111 
 

SWEETWATER

 Deer Park                9700   32.8    14.3    229    43.5    25.3    172 
 Larsen Creek             9000    3.1     5.9     53    26.2      -M       *
 South Pass               9040   29.3    11.2    262    33.9    21.8    156 
                                                -----                  -----
                Basin Index (%)                  208                    164 
 

LOWER N. PLATTE

 Casper Mtn.              7900    5.8    10.8     54    19.6    19.7     99 
 Laprele Creek            8375     .2     1.1     18    15.7    16.3     96 
 Reno Hill                8400    5.9     9.4     63    19.9    20.6     97 
 Windy Peak               7900     .0      .0       *   15.4    14.0    110 
                                                -----                  -----
                Basin Index (%)                   56                    100 
 

LARAMIE RIVER

 Brooklyn Lake           10240   16.8    20.8     81    27.0    26.2    103 
 Cinnabar Park            9574   10.2    16.7     61    27.0    28.8     94 
 Crow Creek               8330     .0      .0       *   12.5    14.6     86 
 Deadman Hill            10220   19.2    18.5    104    25.3    22.0    115 
 Rawah                    9020     .2     2.1     10    20.8    18.6    112 
 Roach                    9700   13.0    15.0     87    25.8    23.6    109 
                                                -----                  -----
                Basin Index (%)                   81                    103 
 

S. PLATTE

 Black Mountain           8920     .7      -M       *   16.8      -M       *
 Crow Creek               8330     .0      .0       *   12.5    14.6     86 
 Deadman Hill            10220   19.2    18.5    104    25.3    22.0    115 
                                                -----                  -----
                Basin Index (%)                  104*                   103 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0      .0       *   19.6    18.1    108 
 Divide Peak              8880    3.8    13.0     29    26.3    25.7    102 
 Elk River                8700     .1     6.2      2    23.2    24.0     97 
 Little Snake River       8915   17.5    19.8     88    43.7    34.6    126 
 Old Battle              10000   37.4    36.8    102    43.6    41.1    106 
 Sage Creek Basin         7850     -M      .0       *   18.3    17.0    108 
 Sandstone RS             8150     -M      .8       *   19.6    22.0     89 
 Whiskey Park             8950   22.4    26.0     86    35.4    33.2    107 
                                                -----                  -----
                Basin Index (%)                   80                    106 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   15.8     8.5    186    25.8    16.3    158 
 Blind Bull Sum           8650     -M    22.4       *   39.2    22.5    174 
 East Rim Divide          7930     .1     5.4      2    23.1    13.7    169 
 Elkhart Park G.S.        9400   15.1     9.4    161    26.9    16.2    166 
 Gros Ventre Summit       8750   16.2     9.4    172    26.7    15.5    172 
 Gunsight Pass            9820   21.8    12.3    177    28.6    17.2    166 
 Kendall R.S.             7740    4.1      .0       *   31.3    16.3    192 
 Loomis Park              8240   16.5     6.7    246    35.2    20.0    176 
 New Fork Lake            8340    3.5     2.1    167    20.6    13.0    158 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    3.1     6.9     45    29.2    16.4    178 
 Spring Creek Divide      9000   41.6    23.3    179    44.9    27.4    164 
 Triple Peak              8500   28.2    14.2    199    44.9    29.4    153 
                                                -----                  -----
                Basin Index (%)                  169                    168 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869     .1      -M       *   19.1      -M       *
 Buck Pasture             9632    9.6      -M       *   27.6      -M       *
 EF Blacks Fork GS        9360    3.8      -M       *   22.9      -M       *
 Hams Fork                7840     .0      .0       *   24.0    14.0    171 
 Hewinta                  9500     .0     1.1      0    21.1    17.3    122 
 Hickerson Park           9122     .1      .0       *   15.0    13.0    115 
 Hole-in-Rock             9168     .0      .0       *   15.8    12.5    126 
 Indian Creek             9425   37.2    21.2    175    45.2    26.4    171 
 Kelley R.S.              8180   11.6     7.8    149    33.9    21.3    159 
 Spirit Lk               10235    8.5      -M       *   21.0      -M       *
 Steel Creek Park        10158   18.2    17.4    105    25.5    20.4    125 
                                                -----                  -----
                Basin Index (%)                  141*                   145 
 

UPPER BEAR RIVER

 Bear River RS            8777     .0      -M       *   21.5      -M       *
 Bug Lake                 7987   23.4    11.7    200    37.7    22.9    165 
 Burts Miller Ranch       8000     .0      -M       *   11.9      -M       *
 Chalk Creek #1           9171   28.6    20.7    138    41.1    30.1    137 
 Hayden Fork              9130    3.3     5.0     66    32.7    25.2    130 
 Kelley R.S.              8180   11.6     7.8    149    33.9    21.3    159 
 Lily Lake                9133    3.6     3.6    100    23.0    20.8    111 
 Monte Cristo             8932   31.8    20.6    154    44.7    30.9    145 
 Salt River Summit        7760    7.5     3.2    234    32.0    19.3    166 
                                                -----                  -----
                Basin Index (%)                  151                    144 

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


 -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.