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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 10:28a, 10/16/18
Temperature 37.9°F
Wind 0.0 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 MONDAY: MAY 8 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   15.1     5.5    275    42.2    23.5    180 
 Black Bear               8170   49.6    36.9    134    59.9    42.8    140 
 Blind Bull Sum           8650     -M    22.6       *   39.0    22.0    177 
 Cottonwood Creek         7670   25.5    13.3    192    44.0    28.6    154 
 East Rim Divide          7930    3.1     6.6     47    22.6    13.4    169 
 Grand Targhee            9260   57.7    46.4    124    51.4    35.9    143 
 Granite Creek            6770   15.9     6.3    252    38.4    21.9    175 
 Grassy Lake              7265   33.9    26.7    127    61.5    40.3    153 
 Gros Ventre Summit       8750   18.6    10.0    186    26.5    15.2    174 
 Gunsight Pass            9820   24.0    11.8    203    28.2    16.7    169 
 Lewis Lake Divide        7850   43.2    29.5    146    59.8    39.5    151 
 Phillips Bench           8200   38.6    23.4    165    50.7    31.6    160 
 Salt River Summit        7760   12.1     5.7    212    31.8    18.9    168 
 Snake River Station      6920    7.1     3.5    203    39.3    25.4    155 
 Spring Creek Divide      9000   44.6    24.0    186    44.5    26.9    165 
 Thumb Divide             7980   14.2     9.4    151    30.5    21.6    141 
 Togwotee Pass            9580   35.9    25.2    142    43.2    28.3    153 
 Two Ocean Plateau        9240     -M    29.7       *     -M    30.9       *
 Willow Creek             8380   24.7    21.5    115    57.6    38.9    148 
 Younts Peak              8350   16.7    15.6    107    33.6    18.3    184 
                                                -----                  -----
                Basin Index (%)                  150                    158 
 

MADISON-GALLATIN

 Black Bear               8170   49.6    36.9    134    59.9    42.8    140 
 Canyon                   7870   14.6     8.0    182    28.8    18.6    155 
 Madison Plateau          7750   25.4    20.6    123    40.0    29.8    134 
 West Yellowstone         6700     .0      .0       *   26.0    16.5    158 
 Whiskey Creek            6800    9.2    11.5     80    29.9    22.9    131 
                                                -----                  -----
                Basin Index (%)                  128                    141 
 

YELLOWSTONE

 Beartooth Lake           9360   35.2    23.0    153    31.8    22.8    139 
 Burnt Mtn                5880     .0      .0       *   18.6    16.9    110 
 Canyon                   7870   14.6     8.0    182    28.8    18.6    155 
 Cole Creek               7850   15.2    17.0     89    14.2    17.5     81 
 Evening Star             9200   36.4    25.2    144    49.4    31.5    157 
 Fisher Creek             9100   46.3    33.8    137    52.6    36.3    145 
 Northeast Entrance       7350     .0     1.0      0    23.1    14.4    160 
 Parker Peak              9400   40.7    21.7    188    40.1    20.9    192 
 Sylvan Lake              8420   26.5    18.2    146    42.1    26.0    162 
 Thumb Divide             7980   14.2     9.4    151    30.5    21.6    141 
 Two Ocean Plateau        9240     -M    29.7       *     -M    30.9       *
 White Mill               8700   39.8    24.5    162    40.0    27.2    147 
 Wolverine                7650     -M      .4       *   23.8    14.3    166 
                                                -----                  -----
                Basin Index (%)                  148                    147 
 

WIND RIVER

 Burroughs Creek          8750   15.1      -M       *   29.3      -M       *
 Castle Creek             8400    1.9      -M       *   17.3      -M       *
 Cold Springs             9630   12.0     1.6    750    22.4    13.2    170 
 Deer Park                9700   34.9    14.6    239    43.4    24.3    179 
 Hobbs Park              10100   34.1    15.9    214    34.5    17.6    196 
 Kirwin                   9550   23.1    10.8    214    29.3    14.6    201 
 Little Warm              9370   16.6     6.9    241    27.2    16.1    169 
 Owl Creek                8975    3.0      .5    600*   15.3     8.4    182 
 South Pass               9040   32.1    12.6    255    33.8    21.1    160 
 St. Lawrence Alt         8620    5.0     1.4    357    20.6    12.2    169 
 Togwotee Pass            9580   35.9    25.2    142    43.2    28.3    153 
 Townsend Creek           8700   17.2     4.8    358    28.2    15.6    181 
                                                -----                  -----
                Basin Index (%)                  227                    174 
 

BIGHORN BASIN

 Bald Mtn.                9380   22.7    20.4    111    21.5    20.7    104 
 Bear Trap Meadow         8200    2.6      .2   1300*   14.9    11.4    131 
 Bone Springs Div         9350   21.9    16.4    134    21.8    19.3    113 
 Grave Springs            8550    9.5     8.2    116    13.7    13.7    100 
 Kirwin                   9550   23.1    10.8    214    29.3    14.6    201 
 Marquette                8760   17.9      -M       *   23.8      -M       *
 Middle Powder            7760   10.9    11.1     98    14.3    15.0     95 
 Owl Creek                8975    3.0      .5    600*   15.3     8.4    182 
 Powder River Pass        9480    8.8     9.0     98    18.1    16.0    113 
 Shell Creek              9580   17.9    16.6    108    18.5    17.3    107 
 Timber Creek             7950    3.5     1.8    194    15.0    10.7    140 
                                                -----                  -----
                Basin Index (%)                  130                    124 
 

SHOSHONE RIVER

 Blackwater               9780   41.1    25.2    163    46.5    24.3    191 
 Evening Star             9200   36.4    25.2    144    49.4    31.5    157 
 Marquette                8760   17.9      -M       *   23.8      -M       *
 Sylvan Road              7120     .0     2.4      0    32.3    19.2    168 
 Younts Peak              8350   16.7    15.6    107    33.6    18.3    184 
                                                -----                  -----
                Basin Index (%)                  138                    173 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.6      .2   1300*   14.9    11.4    131 
 Cloud Peak Reservoir     9860   20.0    16.6    120    26.5    17.8    149 
 Grave Springs            8550    9.5     8.2    116    13.7    13.7    100 
 Hansen Sawmill           8360   12.4     1.5    827    18.9    11.6    163 
 Middle Powder            7760   10.9    11.1     98    14.3    15.0     95 
 Powder River Pass        9480    8.8     9.0     98    18.1    16.0    113 
 Soldier Park             8720   14.6      -M       *   20.5      -M       *
                                                -----                  -----
                Basin Index (%)                  138                    124 
 

TONGUE RIVER

 Big Goose                7990   12.8    10.3    124    20.1    15.4    131 
 Bone Springs Div         9350   21.9    16.4    134    21.8    19.3    113 
 Burgess Junction         7880   11.4    11.4    100    16.0    15.7    102 
 Dome Lake                8880   17.9    11.2    160    22.0    17.5    126 
 Little Goose             8870   16.1      -M       *   24.1      -M       *
 Sucker Creek             8880   13.7    12.3    111    19.1    18.6    103 
 Tie Creek                6870     .5     1.8     28    19.9    15.5    128 
                                                -----                  -----
                Basin Index (%)                  123                    117 
 

BELLE FOURCHE

 Cole Canyon              5910     .0      .0       *   12.2    13.2     92 
                                                -----                  -----
                Basin Index (%)                     *                    92 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .1      .0       *   11.6    15.1     77 
 North Rapid Creek        6130     .0      .0       *   10.0    13.0     77 
                                                -----                  -----
                Basin Index (%)                     *                    77 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   25.0    22.3    112    30.0    27.0    111 
 Blackhall Mtn            9820   35.4      -M       *   42.0      -M       *
 Columbine                9160    8.6    14.4     60    32.1    29.3    110 
 Divide Peak              8880    8.1    15.6     52    26.1    25.2    104 
 Joe Wright              10120   17.6    22.9     77    33.5    30.9    108 
 Laprele Creek            8375    1.0     4.0     25    15.5    15.8     98 
 Med Bow                 10500   38.2      -M       *   41.2      -M       *
 North French Creek      10130   26.7    32.8     81    34.1    31.9    107 
 Never Summer            10280   24.3    22.1    110    22.7      -M       *
 Old Battle              10000   38.6    36.2    107    43.3    40.4    107 
 Rawah                    9020    2.0     3.4     59    20.7    17.9    116 
 Sage Creek Basin         7850     -M      .0       *   18.0    16.7    108 
 Sand Lake               10050   32.9    31.8    103    32.3    30.1    107 
 South Brush Creek        8440     .5     6.2      8    16.5    18.7     88 
 Tower                   10500   43.9    51.4     85    51.0    46.1    111 
 Webber Springs           9250   19.7    20.2     98    37.1    30.8    120 
 Willow Creek Pass        9540   17.6    14.0    126    20.5    16.3    126 
 Zirkel                   9340   20.6    20.1    102    46.8    32.0    146 
                                                -----                  -----
                Basin Index (%)                   90                    112 
 

SWEETWATER

 Deer Park                9700   34.9    14.6    239    43.4    24.3    179 
 Larsen Creek             9000    7.4     7.1    104    26.1      -M       *
 South Pass               9040   32.1    12.6    255    33.8    21.1    160 
                                                -----                  -----
                Basin Index (%)                  217                    170 
 

LOWER N. PLATTE

 Casper Mtn.              7900   10.1    11.9     85    18.9    19.0     99 
 Laprele Creek            8375    1.0     4.0     25    15.5    15.8     98 
 Reno Hill                8400   10.0    11.4     88    19.0    19.9     95 
 Windy Peak               7900     .2     1.6     12    14.0    13.6    103 
                                                -----                  -----
                Basin Index (%)                   74                     99 
 

LARAMIE RIVER

 Brooklyn Lake           10240   19.4    21.9     89    26.8    25.7    104 
 Cinnabar Park            9574   12.6    18.0     70    26.8    28.0     96 
 Crow Creek               8330     .0      .0       *   12.4    14.1     88 
 Deadman Hill            10220   20.8    18.7    111    24.9    21.5    116 
 Rawah                    9020    2.0     3.4     59    20.7    17.9    116 
 Roach                    9700   14.6    16.4     89    25.3    23.1    110 
                                                -----                  -----
                Basin Index (%)                   89                    105 
 

S. PLATTE

 Black Mountain           8920    3.9      -M       *   16.4      -M       *
 Crow Creek               8330     .0      .0       *   12.4    14.1     88 
 Deadman Hill            10220   20.8    18.7    111    24.9    21.5    116 
                                                -----                  -----
                Basin Index (%)                  111*                   105 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0      .0       *   19.5    17.7    110 
 Divide Peak              8880    8.1    15.6     52    26.1    25.2    104 
 Elk River                8700     .3     9.3      3    23.2    23.5     99 
 Little Snake River       8915   20.5    20.9     98    43.6    34.0    128 
 Old Battle              10000   38.6    36.2    107    43.3    40.4    107 
 Sage Creek Basin         7850     -M      .0       *   18.0    16.7    108 
 Sandstone RS             8150     -M     2.7       *   19.5    21.5     91 
 Whiskey Park             8950   23.1    27.0     86    35.2    32.6    108 
                                                -----                  -----
                Basin Index (%)                   83                    108 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.3     8.7    222    25.7    15.9    162 
 Blind Bull Sum           8650     -M    22.6       *   39.0    22.0    177 
 East Rim Divide          7930    3.1     6.6     47    22.6    13.4    169 
 Elkhart Park G.S.        9400   17.8     9.8    182    26.3    15.7    168 
 Gros Ventre Summit       8750   18.6    10.0    186    26.5    15.2    174 
 Gunsight Pass            9820   24.0    11.8    203    28.2    16.7    169 
 Kendall R.S.             7740    9.4      .2   4700*   30.6    16.0    191 
 Loomis Park              8240   19.6     8.0    245    34.6    19.6    177 
 New Fork Lake            8340    7.3     3.5    209    20.1    12.7    158 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    8.2     7.6    108    29.3    16.1    182 
 Spring Creek Divide      9000   44.6    24.0    186    44.5    26.9    165 
 Triple Peak              8500   32.7    15.3    214    44.9    28.9    155 
                                                -----                  -----
                Basin Index (%)                  194                    170 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869     .3      -M       *   18.8      -M       *
 Buck Pasture             9632   12.7      -M       *   27.3      -M       *
 EF Blacks Fork GS        9360    7.5      -M       *   21.6      -M       *
 Hams Fork                7840    3.1      .3   1033*   23.9    13.6    176 
 Hewinta                  9500    1.9     2.9     66    21.0    16.9    124 
 Hickerson Park           9122     .0     1.2      0    14.9    12.6    118 
 Hole-in-Rock             9168     .0      .7      0*   15.8    12.1    131 
 Indian Creek             9425   40.5    21.1    192    45.1    25.8    175 
 Kelley R.S.              8180   16.2     8.9    182    33.7    20.8    162 
 Spirit Lk               10235   11.7      -M       *   21.0      -M       *
 Steel Creek Park        10158   20.3    17.7    115    25.3    19.9    127 
                                                -----                  -----
                Basin Index (%)                  155*                   148 
 

UPPER BEAR RIVER

 Bear River RS            8777     .0      -M       *   21.4      -M       *
 Bug Lake                 7987   28.4    12.6    225    37.6    22.4    168 
 Burts Miller Ranch       8000     .0      -M       *   12.0      -M       *
 Chalk Creek #1           9171   31.8    22.2    143    41.1    29.4    140 
 Hayden Fork              9130    8.1     6.6    123    33.5    24.6    136 
 Kelley R.S.              8180   16.2     8.9    182    33.7    20.8    162 
 Lily Lake                9133    7.5     7.0    107    23.0    20.3    113 
 Monte Cristo             8932   36.1    22.7    159    44.7    30.3    148 
 Salt River Summit        7760   12.1     5.7    212    31.8    18.9    168 
                                                -----                  -----
                Basin Index (%)                  164                    147 

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


 -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.