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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 12:38p, 10/16/18
Temperature 44.0°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 TUESDAY: JANUARY 31 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   15.6    10.8    144    23.5    14.0    168 
 Black Bear               8170   22.6    23.2     97    31.7    24.8    128 
 Blind Bull Sum           8650   22.7    13.7    166    16.1    12.8    126 
 Cottonwood Creek         7670   16.4    12.7    129    22.7    15.8    144 
 East Rim Divide          7930   11.1     6.8    163    13.3     7.7    173 
 Grand Targhee            9260   28.6    23.5    122    26.5    20.5    129 
 Granite Creek            6770   15.9    10.4    153    21.0    13.6    154 
 Grassy Lake              7265   23.6    20.0    118    34.9    23.8    147 
 Gros Ventre Summit       8750    9.6     8.3    116    14.0     8.2    171 
 Gunsight Pass            9820   10.4     8.2    127    14.4     8.8    164 
 Lewis Lake Divide        7850   20.0    19.8    101    31.8    23.1    138 
 Phillips Bench           8200   18.7    15.9    118    28.4    18.1    157 
 Salt River Summit        7760   12.5     7.7    162    17.9    10.6    169 
 Snake River Station      6920   14.2    10.7    133    23.3    15.4    151 
 Spring Creek Divide      9000   20.6    14.3    144    23.2    15.3    152 
 Thumb Divide             7980   10.5     9.6    109    15.8    12.1    131 
 Togwotee Pass            9580   18.4    14.9    123    22.2    15.8    141 
 Two Ocean Plateau        9240     -M    17.4       *     -M    17.2       *
 Willow Creek             8380   20.1    17.0    118    31.1    21.5    145 
 Younts Peak              8350   12.6     9.5    133    16.9    10.4    162 
                                                -----                  -----
                Basin Index (%)                  126                    147 
 

MADISON-GALLATIN

 Black Bear               8170   22.6    23.2     97    31.7    24.8    128 
 Canyon                   7870    9.4     8.1    116    15.8    10.7    148 
 Madison Plateau          7750   13.7    14.0     98    22.8    17.3    132 
 West Yellowstone         6700    7.8     7.0    111    15.2     9.6    158 
 Whiskey Creek            6800    8.9     9.6     93    16.8    13.2    127 
                                                -----                  -----
                Basin Index (%)                  101                    135 
 

YELLOWSTONE

 Beartooth Lake           9360   15.6    13.8    113    12.0    12.8     94 
 Burnt Mtn                5880    4.5     2.4    188     8.6     7.8    110 
 Canyon                   7870    9.4     8.1    116    15.8    10.7    148 
 Cole Creek               7850    6.1     8.3     73     5.3     7.6     70 
 Evening Star             9200   19.0    16.2    117    25.2    17.8    142 
 Fisher Creek             9100   18.4    20.5     90    23.6    20.6    115 
 Northeast Entrance       7350    6.6     6.3    105    11.8     8.2    144 
 Parker Peak              9400   16.5    12.9    128    19.3    11.3    171 
 Sylvan Lake              8420   13.0    12.9    101    23.6    14.8    159 
 Thumb Divide             7980   10.5     9.6    109    15.8    12.1    131 
 Two Ocean Plateau        9240     -M    17.4       *     -M    17.2       *
 White Mill               8700   15.2    14.5    105    18.3    15.3    120 
 Wolverine                7650     -M     7.0       *     -M     8.1       *
                                                -----                  -----
                Basin Index (%)                  107                    129 
 

WIND RIVER

 Burroughs Creek          8750   12.2      -M       *   15.1      -M       *
 Castle Creek             8400    6.9      -M       *    9.1      -M       *
 Cold Springs             9630    6.4     4.5    142     9.0     6.2    145 
 Deer Park                9700   18.1     9.3    195    21.5    12.2    176 
 Hobbs Park              10100   12.6     7.9    159    12.6     7.7    164 
 Kirwin                   9550   10.0     5.8    172    13.0     7.2    181 
 Little Warm              9370    6.8     6.3    108    12.0     8.1    148 
 Owl Creek                8975    4.1     3.1    132     5.6     3.6    156 
 South Pass               9040   17.1     8.7    197    16.5    10.9    151 
 St. Lawrence Alt         8620    3.9     4.2     93     7.7     5.3    145 
 Togwotee Pass            9580   18.4    14.9    123    22.2    15.8    141 
 Townsend Creek           8700    7.0     5.1    137    10.0     7.0    143 
                                                -----                  -----
                Basin Index (%)                  150                    155 
 

BIGHORN BASIN

 Bald Mtn.                9380   12.3    10.8    114    11.0    10.6    104 
 Bear Trap Meadow         8200    3.4     3.4    100     4.8     5.1     94 
 Bone Springs Div         9350    9.5     9.8     97    10.0     9.6    104 
 Grave Springs            8550    3.8     4.9     78     4.9     6.4     77 
 Kirwin                   9550   10.0     5.8    172    13.0     7.2    181 
 Marquette                8760    5.0      -M       *    8.4      -M       *
 Middle Powder            7760    4.7     6.3     75     5.3     7.3     73 
 Owl Creek                8975    4.1     3.1    132     5.6     3.6    156 
 Powder River Pass        9480    3.8     6.4     59     6.8     7.8     87 
 Shell Creek              9580   10.0     9.1    110     8.2     8.9     92 
 Timber Creek             7950    3.7     2.9    128     5.0     4.5    111 
                                                -----                  -----
                Basin Index (%)                  104                    105 
 

SHOSHONE RIVER

 Blackwater               9780   19.5    14.7    133    23.3    13.2    177 
 Evening Star             9200   19.0    16.2    117    25.2    17.8    142 
 Marquette                8760    5.0      -M       *    8.4      -M       *
 Sylvan Road              7120    9.5     7.8    122    19.6    11.8    166 
 Younts Peak              8350   12.6     9.5    133    16.9    10.4    162 
                                                -----                  -----
                Basin Index (%)                  126                    160 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.4     3.4    100     4.8     5.1     94 
 Cloud Peak Reservoir     9860    7.4     8.2     90     9.3     7.9    118 
 Grave Springs            8550    3.8     4.9     78     4.9     6.4     77 
 Hansen Sawmill           8360    4.9     4.0    122     6.7     5.0    134 
 Middle Powder            7760    4.7     6.3     75     5.3     7.3     73 
 Powder River Pass        9480    3.8     6.4     59     6.8     7.8     87 
 Soldier Park             8720    7.5      -M       *    6.9      -M       *
                                                -----                  -----
                Basin Index (%)                   84                     96 
 

TONGUE RIVER

 Big Goose                7990    5.4     4.9    110     6.4     6.5     98 
 Bone Springs Div         9350    9.5     9.8     97    10.0     9.6    104 
 Burgess Junction         7880    5.5     6.6     83     6.9     7.4     93 
 Dome Lake                8880    6.5     6.8     96     8.0     8.3     96 
 Little Goose             8870    5.8      -M       *    8.0      -M       *
 Sucker Creek             8880    6.5     7.0     93     7.0     8.6     81 
 Tie Creek                6870    3.8     3.4    112     7.0     7.0    100 
                                                -----                  -----
                Basin Index (%)                   97                     96 
 

BELLE FOURCHE

 Cole Canyon              5910    3.4     3.2    106     4.3     5.6     77 
                                                -----                  -----
                Basin Index (%)                  106                     77 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.1     4.6     89     5.2     7.7     68 
 North Rapid Creek        6130    4.4     4.2    105     4.7     6.2     76 
                                                -----                  -----
                Basin Index (%)                   97                     71 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   18.8    13.1    144    19.6    14.0    140 
 Blackhall Mtn            9820   25.4      -M       *   26.8      -M       *
 Columbine                9160   19.0    14.5    131    21.0    16.3    129 
 Divide Peak              8880   13.5    12.2    111    16.0    13.5    119 
 Joe Wright              10120   15.0    12.9    116    20.6    15.9    130 
 Laprele Creek            8375    7.2     5.4    133     7.0     7.5     93 
 Med Bow                 10500   26.4      -M       *   25.0      -M       *
 North French Creek      10130   16.9    15.9    106    18.4    16.8    110 
 Never Summer            10280   16.4    12.4    132    13.9      -M       *
 Old Battle              10000   25.1    19.0    132    26.6    22.2    120 
 Rawah                    9020   10.0     6.1    164    12.6     9.0    140 
 Sage Creek Basin         7850   11.3     8.3    136    11.8     9.8    120 
 Sand Lake               10050   19.5    16.3    120    18.8    15.0    125 
 South Brush Creek        8440    7.2     7.3     99     8.6     9.5     91 
 Tower                   10500   30.5    27.2    112    32.4    25.3    128 
 Webber Springs           9250   19.9    13.5    147    23.6    16.9    140 
 Willow Creek Pass        9540   13.2     7.5    176    14.0     8.3    169 
 Zirkel                   9340   27.7    18.3    151    29.7    18.7    159 
                                                -----                  -----
                Basin Index (%)                  129                    128 
 

SWEETWATER

 Deer Park                9700   18.1     9.3    195    21.5    12.2    176 
 Larsen Creek             9000   12.1     7.2    168    15.6      -M       *
 South Pass               9040   17.1     8.7    197    16.5    10.9    151 
                                                -----                  -----
                Basin Index (%)                  188                    165 
 

LOWER N. PLATTE

 Casper Mtn.              7900    6.8     7.5     91     6.9     9.0     77 
 Laprele Creek            8375    7.2     5.4    133     7.0     7.5     93 
 Reno Hill                8400     -M     7.6       *     -M     8.8       *
 Windy Peak               7900     -M     4.1       *     -M     6.3       *
                                                -----                  -----
                Basin Index (%)                  109                     84 
 

LARAMIE RIVER

 Brooklyn Lake           10240   16.3    12.0    136    15.1    12.8    118 
 Cinnabar Park            9574   13.3    13.1    102    16.0    15.7    102 
 Crow Creek               8330    4.1     5.7     72     6.0     6.4     94 
 Deadman Hill            10220   14.2    10.0    142    14.0    10.2    137 
 Rawah                    9020   10.0     6.1    164    12.6     9.0    140 
 Roach                    9700   12.4     9.9    125    14.7    11.7    126 
                                                -----                  -----
                Basin Index (%)                  124                    119 
 

S. PLATTE

 Black Mountain           8920    7.2      -M       *    8.4      -M       *
 Crow Creek               8330    4.1     5.7     72     6.0     6.4     94 
 Deadman Hill            10220   14.2    10.0    142    14.0    10.2    137 
                                                -----                  -----
                Basin Index (%)                  117                    120 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.7     7.0    124      -M     9.6       *
 Divide Peak              8880   13.5    12.2    111    16.0    13.5    119 
 Elk River                8700   15.8    11.1    142    15.7    12.6    125 
 Little Snake River       8915   22.9    15.4    149    28.4    20.4    139 
 Old Battle              10000   25.1    19.0    132    26.6    22.2    120 
 Sage Creek Basin         7850   11.3     8.3    136    11.8     9.8    120 
 Sandstone RS             8150   10.7     8.0    134    11.8    11.9     99 
 Whiskey Park             8950   19.9    15.8    126    22.3    17.7    126 
                                                -----                  -----
                Basin Index (%)                  132                    123 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   13.4     8.1    165    15.7     8.3    189 
 Blind Bull Sum           8650   22.7    13.7    166    16.1    12.8    126 
 East Rim Divide          7930   11.1     6.8    163    13.3     7.7    173 
 Elkhart Park G.S.        9400   10.1     7.4    136    15.4     8.4    183 
 Gros Ventre Summit       8750    9.6     8.3    116    14.0     8.2    171 
 Gunsight Pass            9820   10.4     8.2    127    14.4     8.8    164 
 Kendall R.S.             7740   12.5     7.8    160    16.9     9.2    184 
 Loomis Park              8240   15.3     9.4    163    20.3    11.2    181 
 New Fork Lake            8340   10.1     6.8    149    10.6     7.0    151 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   12.3     7.4    166    17.2     9.2    187 
 Spring Creek Divide      9000   20.6    14.3    144    23.2    15.3    152 
 Triple Peak              8500   22.2    13.1    169    23.5    15.9    148 
                                                -----                  -----
                Basin Index (%)                  153                    164 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    8.4      -M       *   10.6      -M       *
 Buck Pasture             9700   13.9      -M       *   16.4      -M       *
 EF Blacks Fork GS        9360    9.3      -M       *    9.5      -M       *
 Hams Fork                7840   11.4     7.0    163    13.4     7.3    184 
 Hewinta                  9519    8.8     5.6    157    11.0     8.6    128 
 Hickerson Park           9145    6.0     3.8    158     6.4     6.1    105 
 Hole-in-Rock             9150    5.1     4.0    128     6.9     5.7    121 
 Indian Creek             9425   21.6    14.5    149      -M    13.9       *
 Kelley R.S.              8180   15.4     8.9    173    20.6    11.5    179 
 Spirit Lk               10235    9.8      -M       *   11.4      -M       *
 Steel Creek Park        10200   11.9     8.6    138    13.5     9.8    138 
                                                -----                  -----
                Basin Index (%)                  153                    147 
 

UPPER BEAR RIVER

 Bear River RS            8777    9.8      -M       *   11.8      -M       *
 Bug Lake                 7950   21.5    10.5    205    19.1    12.3    155 
 Burts Miller Ranch       8000    5.6      -M       *    6.0      -M       *
 Chalk Creek #1           8993   21.9    13.3    165    23.4    15.6    150 
 Hayden Fork              9212   15.7     8.5    185      -M    13.0       *
 Kelley R.S.              8180   15.4     8.9    173    20.6    11.5    179 
 Lily Lake                9156   10.8     7.4    146    13.1    10.6    124 
 Monte Cristo             8960   22.0    15.8    139      -M    16.2       *
 Salt River Summit        7760   12.5     7.7    162    17.9    10.6    169 
                                                -----                  -----
                Basin Index (%)                  166                    155 

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


 -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.