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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 11:48a, 10/19/18
Temperature 50.4°F
Wind 3.0 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 5 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   18.2     7.2    253    42.2    23.2    182 
 Black Bear               8170   50.8    37.2    137    59.8    42.3    141 
 Blind Bull Sum           8650   48.4    22.7    213    39.0    21.7    180 
 Cottonwood Creek         7670   27.7    14.1    196    44.0    28.0    157 
 East Rim Divide          7930    6.9     7.4     93    22.5    13.1    172 
 Grand Targhee            9260   60.4    46.0    131    51.1    35.3    145 
 Granite Creek            6770   19.4     7.4    262    38.4    21.6    178 
 Grassy Lake              7265   39.2    27.6    142    61.5    39.8    155 
 Gros Ventre Summit       8750   20.1    10.8    186    26.5    14.9    178 
 Gunsight Pass            9820   26.4    11.8    224    28.2    16.3    173 
 Lewis Lake Divide        7850   47.1    29.5    160    59.9    39.1    153 
 Phillips Bench           8200   40.9    24.2    169    50.7    31.1    163 
 Salt River Summit        7760   15.9     7.1    224    31.9    18.6    172 
 Snake River Station      6920   11.7     5.1    229    39.2    25.1    156 
 Spring Creek Divide      9000   44.4    24.2    183    44.6    26.6    168 
 Thumb Divide             7980   17.8    10.3    173    30.5    21.3    143 
 Togwotee Pass            9580   36.7    24.8    148    43.1    27.8    155 
 Two Ocean Plateau        9240     -M    29.9       *     -M    30.6       *
 Willow Creek             8380   28.8    21.8    132    57.6    38.3    150 
 Younts Peak              8350   20.5    15.7    131    33.7    18.0    187 
                                                -----                  -----
                Basin Index (%)                  164                    160 
 

MADISON-GALLATIN

 Black Bear               8170   50.8    37.2    137    59.8    42.3    141 
 Canyon                   7870   17.4     8.8    198    28.9    18.3    158 
 Madison Plateau          7750   29.5    20.8    142    40.0    29.4    136 
 West Yellowstone         6700     .0      .0       *   26.0    16.2    160 
 Whiskey Creek            6800   11.4    12.9     88    29.9    22.6    132 
                                                -----                  -----
                Basin Index (%)                  137                    143 
 

YELLOWSTONE

 Beartooth Lake           9360   36.2    22.7    159    31.7    22.3    142 
 Burnt Mtn                5880     .0      .0       *   18.5    16.2    114 
 Canyon                   7870   17.4     8.8    198    28.9    18.3    158 
 Cole Creek               7850   16.8    16.8    100    14.2    16.8     85 
 Evening Star             9200   41.6    24.9    167    49.3    30.9    160 
 Fisher Creek             9100   48.5    32.9    147    52.7    35.7    148 
 Northeast Entrance       7350     .0     1.2      0    23.0    14.0    164 
 Parker Peak              9400   43.1    21.3    202    40.1    20.4    197 
 Sylvan Lake              8420   26.1    18.7    140    42.0    25.5    165 
 Thumb Divide             7980   17.8    10.3    173    30.5    21.3    143 
 Two Ocean Plateau        9240     -M    29.9       *     -M    30.6       *
 White Mill               8700   40.8    24.0    170    40.0    26.7    150 
 Wolverine                7650     .2      .8     25*   23.8    14.0    170 
                                                -----                  -----
                Basin Index (%)                  158                    151 
 

WIND RIVER

 Burroughs Creek          8750   18.1      -M       *   29.3      -M       *
 Castle Creek             8400    5.0      -M       *   17.3      -M       *
 Cold Springs             9630   14.5     1.5    967    22.4    12.8    175 
 Deer Park                9700   36.2    15.1    240    43.4    23.8    182 
 Hobbs Park              10100   34.7    15.9    218    34.5    17.1    202 
 Kirwin                   9550   24.9    10.7    233    29.3    14.2    206 
 Little Warm              9370   18.6     7.8    238    27.2    15.7    173 
 Owl Creek                8975    6.6      .6   1100    15.3     8.2    187 
 South Pass               9040   33.4    13.8    242    33.8    20.8    162 
 St. Lawrence Alt         8620    8.3     1.8    461    20.6    11.8    175 
 Togwotee Pass            9580   36.7    24.8    148    43.1    27.8    155 
 Townsend Creek           8700   18.9     6.2    305    28.2    15.2    186 
                                                -----                  -----
                Basin Index (%)                  237                    178 
 

BIGHORN BASIN

 Bald Mtn.                9380   24.0    20.4    118    21.5    20.1    107 
 Bear Trap Meadow         8200    5.9      .3   1967*   14.9    11.0    135 
 Bone Springs Div         9350   23.8    16.4    145    21.7    18.6    117 
 Grave Springs            8550   11.1     9.1    122    13.7    13.1    105 
 Kirwin                   9550   24.9    10.7    233    29.3    14.2    206 
 Marquette                8760   20.1      -M       *   23.9      -M       *
 Middle Powder            7760   13.2    11.3    117    14.2    14.5     98 
 Owl Creek                8975    6.6      .6   1100    15.3     8.2    187 
 Powder River Pass        9480   11.3     9.1    124    18.2    15.4    118 
 Shell Creek              9580   20.1    16.2    124    18.4    16.7    110 
 Timber Creek             7950    6.6     2.3    287    15.1    10.3    147 
                                                -----                  -----
                Basin Index (%)                  153                    128 
 

SHOSHONE RIVER

 Blackwater               9780   42.0    25.8    163    46.4    23.9    194 
 Evening Star             9200   41.6    24.9    167    49.3    30.9    160 
 Marquette                8760   20.1      -M       *   23.9      -M       *
 Sylvan Road              7120     .0     3.7      0    32.4    18.9    171 
 Younts Peak              8350   20.5    15.7    131    33.7    18.0    187 
                                                -----                  -----
                Basin Index (%)                  149                    176 
 

POWDER RIVER

 Bear Trap Meadow         8200    5.9      .3   1967*   14.9    11.0    135 
 Cloud Peak Reservoir     9860   20.9    16.4    127    26.4    17.1    154 
 Grave Springs            8550   11.1     9.1    122    13.7    13.1    105 
 Hansen Sawmill           8360   14.8     1.7    871    18.9    11.1    170 
 Middle Powder            7760   13.2    11.3    117    14.2    14.5     98 
 Powder River Pass        9480   11.3     9.1    124    18.2    15.4    118 
 Soldier Park             8720   17.3      -M       *   20.5      -M       *
                                                -----                  -----
                Basin Index (%)                  161                    129 
 

TONGUE RIVER

 Big Goose                7990   14.8     9.6    154    20.1    14.5    139 
 Bone Springs Div         9350   23.8    16.4    145    21.7    18.6    117 
 Burgess Junction         7880   13.1    11.7    112    15.9    15.1    105 
 Dome Lake                8880   19.5    11.3    173    22.0    16.8    131 
 Little Goose             8870   18.7      -M       *   24.0      -M       *
 Sucker Creek             8880   15.8    12.0    132    19.0    17.8    107 
 Tie Creek                6870    3.5     2.4    146    19.7    14.8    133 
                                                -----                  -----
                Basin Index (%)                  143                    121 
 

BELLE FOURCHE

 Cole Canyon              5910     .6      .0       *   12.1    12.4     98 
                                                -----                  -----
                Basin Index (%)                     *                    98 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0      .0       *   11.7    14.7     80 
 North Rapid Creek        6130     .0      .0       *   10.0    12.6     79 
                                                -----                  -----
                Basin Index (%)                     *                    79 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   26.2    22.2    118    29.9    26.8    112 
 Blackhall Mtn            9820   37.0      -M       *   42.2      -M       *
 Columbine                9160   11.9    16.5     72    32.1    29.1    110 
 Divide Peak              8880   11.4    17.1     67    26.1    24.8    105 
 Joe Wright              10120   19.3    22.8     85    33.4    30.6    109 
 Laprele Creek            8375    5.0     5.2     96    15.2    15.4     99 
 Med Bow                 10500   39.5      -M       *   41.3      -M       *
 North French Creek      10130   28.5    32.7     87    34.0    31.3    109 
 Never Summer            10280   25.0    21.9    114    22.7      -M       *
 Old Battle              10000   40.4    35.0    115    43.2    39.8    109 
 Rawah                    9020    4.9     4.4    111    20.7    17.7    117 
 Sage Creek Basin         7850     -M      .6       *   18.0    16.5    109 
 Sand Lake               10050   33.7    31.6    107    32.3    29.6    109 
 South Brush Creek        8440     .4     7.5      5    15.9    18.3     87 
 Tower                   10500   44.5    51.0     87    51.0    45.5    112 
 Webber Springs           9250   23.3    20.8    112    37.0    30.4    122 
 Willow Creek Pass        9540   19.0    14.5    131    20.5    16.1    127 
 Zirkel                   9340   24.6    20.6    119    46.8    31.5    149 
                                                -----                  -----
                Basin Index (%)                   98                    113 
 

SWEETWATER

 Deer Park                9700   36.2    15.1    240    43.4    23.8    182 
 Larsen Creek             9000   10.6     8.0    132    26.0      -M       *
 South Pass               9040   33.4    13.8    242    33.8    20.8    162 
                                                -----                  -----
                Basin Index (%)                  217                    173 
 

LOWER N. PLATTE

 Casper Mtn.              7900   12.6    12.2    103    18.7    18.5    101 
 Laprele Creek            8375    5.0     5.2     96    15.2    15.4     99 
 Reno Hill                8400   13.0    12.0    108    18.8    19.4     97 
 Windy Peak               7900    2.7     2.8     96    14.1    13.3    106 
                                                -----                  -----
                Basin Index (%)                  103                    100 
 

LARAMIE RIVER

 Brooklyn Lake           10240   21.2    22.8     93    26.8    25.2    106 
 Cinnabar Park            9574   14.1    18.5     76    26.8    27.5     97 
 Crow Creek               8330     .0      .0       *   12.3    13.8     89 
 Deadman Hill            10220   22.4    19.1    117    24.9    21.1    118 
 Rawah                    9020    4.9     4.4    111    20.7    17.7    117 
 Roach                    9700   16.5    17.0     97    25.3    22.8    111 
                                                -----                  -----
                Basin Index (%)                   97                    107 
 

S. PLATTE

 Black Mountain           8920    7.7      -M       *   16.4      -M       *
 Crow Creek               8330     .0      .0       *   12.3    13.8     89 
 Deadman Hill            10220   22.4    19.1    117    24.9    21.1    118 
                                                -----                  -----
                Basin Index (%)                  117*                   107 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0      .0       *   19.4    17.4    111 
 Divide Peak              8880   11.4    17.1     67    26.1    24.8    105 
 Elk River                8700    3.9    11.3     35    23.2    23.2    100 
 Little Snake River       8915   22.7    21.4    106    43.5    33.3    131 
 Old Battle              10000   40.4    35.0    115    43.2    39.8    109 
 Sage Creek Basin         7850     -M      .6       *   18.0    16.5    109 
 Sandstone RS             8150     -M     4.1       *   19.2    21.1     91 
 Whiskey Park             8950   24.5    27.0     91    35.2    32.1    110 
                                                -----                  -----
                Basin Index (%)                   92                    109 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   21.7     9.0    241    25.7    15.5    166 
 Blind Bull Sum           8650   48.4    22.7    213    39.0    21.7    180 
 East Rim Divide          7930    6.9     7.4     93    22.5    13.1    172 
 Elkhart Park G.S.        9400   20.5    10.3    199    26.3    15.3    172 
 Gros Ventre Summit       8750   20.1    10.8    186    26.5    14.9    178 
 Gunsight Pass            9820   26.4    11.8    224    28.2    16.3    173 
 Kendall R.S.             7740   11.9     2.0    595    30.6    15.7    195 
 Loomis Park              8240   22.0     9.5    232    34.5    19.2    180 
 New Fork Lake            8340   10.1     5.0    202    19.7    12.4    159 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   12.6     8.2    154    29.2    15.8    185 
 Spring Creek Divide      9000   44.4    24.2    183    44.6    26.6    168 
 Triple Peak              8500   36.2    15.9    228    44.9    28.3    159 
                                                -----                  -----
                Basin Index (%)                  206                    173 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    3.4      -M       *   18.7      -M       *
 Buck Pasture             9632   15.8      -M       *   27.3      -M       *
 EF Blacks Fork GS        9360   11.6      -M       *   21.6      -M       *
 Hams Fork                7840    7.0     1.1    636    23.9    13.3    180 
 Hewinta                  9500    6.2     4.0    155    20.9    16.6    126 
 Hickerson Park           9122    1.5     2.7     56    14.9    12.3    121 
 Hole-in-Rock             9168    2.1     1.5    140    15.7    11.9    132 
 Indian Creek             9425   43.6    21.8    200    45.1    25.4    178 
 Kelley R.S.              8180     -M    10.0       *   33.7    20.5    164 
 Spirit Lk               10235   15.2      -M       *   20.9      -M       *
 Steel Creek Park        10158   22.1    17.5    126    25.3    19.6    129 
                                                -----                  -----
                Basin Index (%)                  170                    150 
 

UPPER BEAR RIVER

 Bear River RS            8777     .1      -M       *   21.3      -M       *
 Bug Lake                 7987   32.6    13.4    243    37.6    22.1    170 
 Burts Miller Ranch       8000     .0      -M       *   11.9      -M       *
 Chalk Creek #1           9171   34.5    23.2    149    41.1    29.1    141 
 Hayden Fork              9130   13.0     8.1    160    33.3    24.3    137 
 Kelley R.S.              8180     -M    10.0       *   33.7    20.5    164 
 Lily Lake                9133   11.6     9.2    126    23.0    20.0    115 
 Monte Cristo             8932   38.9    24.6    158    44.6    29.9    149 
 Salt River Summit        7760   15.9     7.1    224    31.9    18.6    172 
                                                -----                  -----
                Basin Index (%)                  171                    149 

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


 -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.