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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


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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: MARCH 6 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   25.0    13.7    182    31.9    17.8    179 
 Black Bear               8170   38.4    30.5    126    44.7    32.0    140 
 Blind Bull Sum           8650   37.6    18.7    201      -M    16.5       *
 Cottonwood Creek         7670   25.5    17.9    142    32.4    20.2    160 
 East Rim Divide          7930   17.8     8.8    202    19.1     9.9    193 
 Grand Targhee            9260   37.4    31.0    121    32.8    25.3    130 
 Granite Creek            6770   28.4    14.2    200      -M    17.1       *
 Grassy Lake              7265   33.2    26.9    123    46.0    30.4    151 
 Gros Ventre Summit       8750     -M    10.4       *     -M    10.5       *
 Gunsight Pass            9820   18.6    11.1    168    21.3    11.1    192 
 Lewis Lake Divide        7850   33.6    25.7    131    42.4    29.9    142 
 Phillips Bench           8200   31.7    20.4    155    39.4    23.5    168 
 Salt River Summit        7760   19.5    10.9    179    25.2    13.9    181 
 Snake River Station      6920   20.5    14.7    139    30.5    19.2    159 
 Spring Creek Divide      9000   34.0    19.3    176      -M    19.9       *
 Thumb Divide             7980   20.3    12.6    161    21.7    15.3    142 
 Togwotee Pass            9580   28.3    18.8    151    32.4    20.0    162 
 Two Ocean Plateau        9240     -M    22.1       *     -M    22.5       *
 Willow Creek             8380   28.8    23.4    123    42.2    27.7    152 
 Younts Peak              8350   23.1    12.0    192    25.7    13.0    198 
                                                -----                  -----
                Basin Index (%)                  152                    158 
 

MADISON-GALLATIN

 Black Bear               8170   38.4    30.5    126    44.7    32.0    140 
 Canyon                   7870   15.7    11.1    141    21.8    13.5    161 
 Madison Plateau          7750   23.4    18.4    127    31.1    22.1    141 
 West Yellowstone         6700   12.0     9.2    130    20.1    12.0    168 
 Whiskey Creek            6800   14.3    12.5    114    22.8    16.9    135 
                                                -----                  -----
                Basin Index (%)                  127                    146 
 

YELLOWSTONE

 Beartooth Lake           9360   26.2    17.7    148    21.6    16.3    133 
 Burnt Mtn                5880    5.5     4.3    128    11.2     9.8    114 
 Canyon                   7870   15.7    11.1    141    21.8    13.5    161 
 Cole Creek               7850    8.6    10.7     80     6.3     9.4     67 
 Evening Star             9200   31.1    20.1    155    34.1    22.8    150 
 Fisher Creek             9100   33.6    26.3    128    37.8    26.4    143 
 Northeast Entrance       7350   10.6     8.5    125    16.2    10.2    159 
 Parker Peak              9400   27.2    16.3    167    23.4    14.5    161 
 Sylvan Lake              8420   20.9    16.4    127    32.1    18.5    174 
 Thumb Divide             7980   20.3    12.6    161    21.7    15.3    142 
 Two Ocean Plateau        9240     -M    22.1       *     -M    22.5       *
 White Mill               8700   26.0    18.8    138    27.6    19.7    140 
 Wolverine                7650   13.4     8.8    152    18.0    10.2    176 
                                                -----                  -----
                Basin Index (%)                  139                    146 
 

WIND RIVER

 Burroughs Creek          8750   20.9      -M       *   22.9      -M       *
 Castle Creek             8400   11.5      -M       *   13.6      -M       *
 Cold Springs             9630   12.0     5.7    211    14.2     7.8    182 
 Deer Park                9700   28.2    11.2    252    30.1    15.6    193 
 Hobbs Park              10100   21.8    10.4    210    19.9    10.0    199 
 Kirwin                   9550   16.5     7.4    223    19.2     9.1    211 
 Little Warm              9370   14.5     8.3    175    20.0    10.2    196 
 Owl Creek                8975    6.8     4.1    166     8.5     4.4    193 
 South Pass               9040   25.9    12.0    216    23.2    14.0    166 
 St. Lawrence Alt         8620    7.3     5.6    130    12.0     6.8    176 
 Togwotee Pass            9580   28.3    18.8    151    32.4    20.0    162 
 Townsend Creek           8700   12.4     7.1    175    15.6     9.0    173 
                                                -----                  -----
                Basin Index (%)                  192                    183 
 

BIGHORN BASIN

 Bald Mtn.                9380   15.5    15.5    100    13.6    13.5    101 
 Bear Trap Meadow         8200    4.6     4.6    100     5.8     6.4     91 
 Bone Springs Div         9350   13.7    12.9    106    13.4    12.2    110 
 Grave Springs            8550    5.3     7.1     75     5.9     8.2     72 
 Kirwin                   9550   16.5     7.4    223    19.2     9.1    211 
 Marquette                8760    7.7      -M       *   11.4      -M       *
 Middle Powder            7760    6.1     8.4     73     6.1     9.0     68 
 Owl Creek                8975    6.8     4.1    166     8.5     4.4    193 
 Powder River Pass        9480    6.4     8.2     78     9.3     9.9     94 
 Shell Creek              9580   13.2    12.0    110    10.4    10.9     95 
 Timber Creek             7950    5.4     3.9    138     6.9     5.4    128 
                                                -----                  -----
                Basin Index (%)                  111                    111 
 

SHOSHONE RIVER

 Blackwater               9780   31.1    18.1    172    34.4    16.6    207 
 Evening Star             9200   31.1    20.1    155    34.1    22.8    150 
 Marquette                8760    7.7      -M       *   11.4      -M       *
 Sylvan Road              7120   14.3     9.8    146    25.8    14.3    180 
 Younts Peak              8350   23.1    12.0    192    25.7    13.0    198 
                                                -----                  -----
                Basin Index (%)                  166                    180 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.6     4.6    100     5.8     6.4     91 
 Cloud Peak Reservoir     9860   10.3    11.0     94    11.7     9.9    118 
 Grave Springs            8550    5.3     7.1     75     5.9     8.2     72 
 Hansen Sawmill           8360    6.9     4.8    144     8.8     6.3    140 
 Middle Powder            7760    6.1     8.4     73     6.1     9.0     68 
 Powder River Pass        9480    6.4     8.2     78     9.3     9.9     94 
 Soldier Park             8720   10.1      -M       *    8.6      -M       *
                                                -----                  -----
                Basin Index (%)                   90                     96 
 

TONGUE RIVER

 Big Goose                7990    7.4     6.5    114     8.3     8.1    102 
 Bone Springs Div         9350   13.7    12.9    106    13.4    12.2    110 
 Burgess Junction         7880    7.5     8.8     85     8.6     9.4     91 
 Dome Lake                8880    9.9     9.0    110    10.8    10.2    106 
 Little Goose             8870    8.0      -M       *   10.4      -M       *
 Sucker Creek             8880    8.9     9.5     94     9.0    10.9     83 
 Tie Creek                6870    5.0     4.6    109     9.1     8.7    105 
                                                -----                  -----
                Basin Index (%)                  102                     99 
 

BELLE FOURCHE

 Cole Canyon              5910    3.0     4.9     61     5.8     7.3     79 
                                                -----                  -----
                Basin Index (%)                   61                     79 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.4     6.5     68     6.9     9.7     71 
 North Rapid Creek        6130    4.7     6.1     77     5.9     7.8     76 
                                                -----                  -----
                Basin Index (%)                   72                     73 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   22.7    17.2    132    22.9    18.2    126 
 Blackhall Mtn            9820   33.6      -M       *   32.2      -M       *
 Columbine                9160   23.5    20.5    115    24.9    20.9    119 
 Divide Peak              8880   18.3    16.5    111    20.3    17.4    117 
 Joe Wright              10120   18.0    17.6    102    25.0    20.7    121 
 Laprele Creek            8375   10.7     7.9    135    10.1     9.7    104 
 Med Bow                 10500   34.2      -M       *   30.5      -M       *
 North French Creek      10130   22.9    21.6    106    23.6    21.6    109 
 Never Summer            10280   20.8    16.5    126    17.0      -M       *
 Old Battle              10000   33.9    24.7    137    34.6    28.8    120 
 Rawah                    9020   11.8     9.0    131    14.8    11.2    132 
 Sage Creek Basin         7850   15.3    10.9    140    14.7    12.1    121 
 Sand Lake               10050   26.4    21.7    122    24.2    19.6    123 
 South Brush Creek        8440   10.5    10.8     97    11.1    12.1     92 
 Tower                   10500   38.8    37.4    104    39.3    32.9    119 
 Webber Springs           9250   26.9    19.4    139    30.3    21.9    138 
 Willow Creek Pass        9540   16.0     9.9    162    16.8    10.7    157 
 Zirkel                   9340   38.9    24.2    161    38.7    23.8    163 
                                                -----                  -----
                Basin Index (%)                  124                    125 
 

SWEETWATER

 Deer Park                9700   28.2    11.2    252    30.1    15.6    193 
 Larsen Creek             9000   18.3     9.9    185    20.6      -M       *
 South Pass               9040   25.9    12.0    216    23.2    14.0    166 
                                                -----                  -----
                Basin Index (%)                  219                    180 
 

LOWER N. PLATTE

 Casper Mtn.              7900   10.0    10.9     92     9.3    11.5     81 
 Laprele Creek            8375   10.7     7.9    135    10.1     9.7    104 
 Reno Hill                8400   10.2    10.8     94    10.4    11.6     90 
 Windy Peak               7900    9.4     6.1    154     9.6     8.1    119 
                                                -----                  -----
                Basin Index (%)                  113                     96 
 

LARAMIE RIVER

 Brooklyn Lake           10240   22.3    15.9    140    20.0    16.7    120 
 Cinnabar Park            9574   17.5    17.5    100    19.7    20.0     98 
 Crow Creek               8330    4.9     6.9     71     7.5     8.2     91 
 Deadman Hill            10220   18.6    12.7    146    17.7    13.4    132 
 Rawah                    9020   11.8     9.0    131    14.8    11.2    132 
 Roach                    9700   15.2    12.8    119    17.9    15.3    117 
                                                -----                  -----
                Basin Index (%)                  121                    115 
 

S. PLATTE

 Black Mountain           8920    9.3      -M       *   10.3      -M       *
 Crow Creek               8330    4.9     6.9     71     7.5     8.2     91 
 Deadman Hill            10220   18.6    12.7    146    17.7    13.4    132 
                                                -----                  -----
                Basin Index (%)                  120                    117 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440   10.8    10.1    107    14.9    12.5    119 
 Divide Peak              8880   18.3    16.5    111    20.3    17.4    117 
 Elk River                8700   20.0    16.3    123    18.7    16.5    113 
 Little Snake River       8915   30.1    20.0    150    34.3    25.4    135 
 Old Battle              10000   33.9    24.7    137    34.6    28.8    120 
 Sage Creek Basin         7850   15.3    10.9    140    14.7    12.1    121 
 Sandstone RS             8150   11.9    11.3    105    14.7    15.5     95 
 Whiskey Park             8950   26.1    22.4    117    27.1    23.1    117 
                                                -----                  -----
                Basin Index (%)                  126                    119 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.4    10.4    187    20.9    10.8    194 
 Blind Bull Sum           8650   37.6    18.7    201      -M    16.5       *
 East Rim Divide          7930   17.8     8.8    202    19.1     9.9    193 
 Elkhart Park G.S.        9400   16.5     9.7    170    20.8    10.9    191 
 Gros Ventre Summit       8750     -M    10.4       *     -M    10.5       *
 Gunsight Pass            9820   18.6    11.1    168    21.3    11.1    192 
 Kendall R.S.             7740   21.5    10.1    213    24.6    12.1    203 
 Loomis Park              8240   25.0    12.3    203    27.7    14.5    191 
 New Fork Lake            8340   15.3     8.6    178    15.3     9.1    168 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   19.3    10.3    187    24.0    11.9    202 
 Spring Creek Divide      9000   34.0    19.3    176      -M    19.9       *
 Triple Peak              8500   33.3    17.8    187    35.3    20.9    169 
                                                -----                  -----
                Basin Index (%)                  188                    188 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869   10.5      -M       *   13.4      -M       *
 Buck Pasture             9632   17.8      -M       *   19.8      -M       *
 EF Blacks Fork GS        9360   14.7      -M       *   13.7      -M       *
 Hams Fork                7840   16.5     9.6    172    17.8     9.4    189 
 Hewinta                  9500   12.4     8.3    149    14.2    11.2    127 
 Hickerson Park           9122    8.3     6.2    134     8.5     7.9    108 
 Hole-in-Rock             9168    6.8     5.8    117     9.0     7.4    122 
 Indian Creek             9425   35.1    19.5    180      -M    18.4       *
 Kelley R.S.              8180   24.3    12.4    196    27.1    15.0    181 
 Spirit Lk               10235   13.6      -M       *   14.5      -M       *
 Steel Creek Park        10158   15.0    12.1    124    16.6    12.9    129 
                                                -----                  -----
                Basin Index (%)                  160                    146 
 

UPPER BEAR RIVER

 Bear River RS            8777   12.8      -M       *   15.1      -M       *
 Bug Lake                 7987   29.1    15.4    189    28.5    16.0    178 
 Burts Miller Ranch       8000    7.8      -M       *    8.4      -M       *
 Chalk Creek #1           9171   31.1    19.0    164    31.5    20.3    155 
 Hayden Fork              9130   22.4    12.5    179    26.0    17.0    153 
 Kelley R.S.              8180   24.3    12.4    196    27.1    15.0    181 
 Lily Lake                9133   13.9    10.7    130    16.7    13.8    121 
 Monte Cristo             8932   32.5    22.1    147    30.3    21.2    143 
 Salt River Summit        7760   19.5    10.9    179    25.2    13.9    181 
                                                -----                  -----
                Basin Index (%)                  168                    158 

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


 -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.