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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 THURSDAY: MARCH 30 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   23.9    14.7    163    38.1    20.0    190 
 Black Bear               8170   44.0    35.7    123    51.5    36.3    142 
 Blind Bull Sum           8650   42.0    22.0    191      -M    18.6       *
 Cottonwood Creek         7670   26.4    21.0    126    36.0    23.4    154 
 East Rim Divide          7930   17.2     9.9    174    20.6    11.2    184 
 Grand Targhee            9260   43.0    35.7    120    38.6    28.8    134 
 Granite Creek            6770   27.8    15.0    185    35.0    18.9    185 
 Grassy Lake              7265   35.4    31.5    112    52.1    34.3    152 
 Gros Ventre Summit       8750     -M    12.7       *     -M    12.2       *
 Gunsight Pass            9820   20.9    13.2    158    23.2    13.0    178 
 Lewis Lake Divide        7850   42.9    29.4    146    53.1    33.8    157 
 Phillips Bench           8200   36.0    23.9    151    45.1    26.8    168 
 Salt River Summit        7760   19.6    12.7    154      -M    15.8       *
 Snake River Station      6920   18.8    15.8    119    34.3    21.5    160 
 Spring Creek Divide      9000   38.8    22.4    173    38.6    22.7    170 
 Thumb Divide             7980   22.8    15.0    152    26.9    17.6    153 
 Togwotee Pass            9580   31.8    21.5    148    36.5    23.0    159 
 Two Ocean Plateau        9240     -M    25.4       *     -M    25.9       *
 Willow Creek             8380   28.4    27.3    104    46.8    31.8    147 
 Younts Peak              8350   25.1    14.0    179    30.2    15.0    201 
                                                -----                  -----
                Basin Index (%)                  143                    160 
 

MADISON-GALLATIN

 Black Bear               8170   44.0    35.7    123    51.5    36.3    142 
 Canyon                   7870   17.1    12.3    139    24.6    15.4    160 
 Madison Plateau          7750   26.1    21.2    123    34.7    25.0    139 
 West Yellowstone         6700    8.6    10.2     84    22.2    13.4    166 
 Whiskey Creek            6800   13.6    14.9     91    25.7    19.2    134 
                                                -----                  -----
                Basin Index (%)                  116                    145 
 

YELLOWSTONE

 Beartooth Lake           9360   31.3    20.8    150    26.6    18.6    143 
 Burnt Mtn                5880     .0     4.4      0    12.7    11.8    108 
 Canyon                   7870   17.1    12.3    139    24.6    15.4    160 
 Cole Creek               7850   10.0    13.2     76     7.1    11.8     60 
 Evening Star             9200   37.2    23.9    156    43.2    25.8    167 
 Fisher Creek             9100   42.5    29.7    143    45.4    30.2    150 
 Northeast Entrance       7350    9.5     9.7     98    19.8    11.6    171 
 Parker Peak              9400   32.6    18.6    175    32.8    16.7    196 
 Sylvan Lake              8420   22.7    19.0    119    35.7    21.1    169 
 Thumb Divide             7980   22.8    15.0    152    26.9    17.6    153 
 Two Ocean Plateau        9240     -M    25.4       *     -M    25.9       *
 White Mill               8700   34.5    21.4    161    34.8    22.5    155 
 Wolverine                7650    7.5     9.0     83    20.3    11.5    177 
                                                -----                  -----
                Basin Index (%)                  136                    154 
 

WIND RIVER

 Burroughs Creek          8750   23.0      -M       *   26.4      -M       *
 Castle Creek             8400   10.6      -M       *   14.7      -M       *
 Cold Springs             9630   13.5     7.1    190    16.2     9.4    172 
 Deer Park                9700   29.4    14.5    203    34.5    18.5    186 
 Hobbs Park              10100   24.8    13.1    189    23.4    12.3    190 
 Kirwin                   9550   20.4     9.2    222    22.8    10.9    209 
 Little Warm              9370   16.7    10.1    165    22.4    12.1    185 
 Owl Creek                8975    7.7     5.2    148    10.2     5.6    182 
 South Pass               9040   28.0    14.7    190    25.2    16.4    154 
 St. Lawrence Alt         8620    6.5     6.7     97    13.7     8.3    165 
 Togwotee Pass            9580   31.8    21.5    148    36.5    23.0    159 
 Townsend Creek           8700   14.1     8.8    160    18.3    11.1    165 
                                                -----                  -----
                Basin Index (%)                  174                    175 
 

BIGHORN BASIN

 Bald Mtn.                9380   18.2    18.1    101    15.8    16.0     99 
 Bear Trap Meadow         8200    4.3     5.1     84     7.4     7.9     94 
 Bone Springs Div         9350   18.0    15.4    117    16.8    14.6    115 
 Grave Springs            8550    6.3     8.7     72     6.9     9.8     70 
 Kirwin                   9550   20.4     9.2    222    22.8    10.9    209 
 Marquette                8760    8.9      -M       *   13.4      -M       *
 Middle Powder            7760    6.8    11.0     62     6.9    10.9     63 
 Owl Creek                8975    7.7     5.2    148    10.2     5.6    182 
 Powder River Pass        9480    7.9     9.9     80    11.7    11.8     99 
 Shell Creek              9580   16.3    14.2    115    13.4    13.0    103 
 Timber Creek             7950    5.3     4.6    115     8.5     6.9    123 
                                                -----                  -----
                Basin Index (%)                  110                    112 
 

SHOSHONE RIVER

 Blackwater               9780   36.4    21.8    167    40.3    19.4    208 
 Evening Star             9200   37.2    23.9    156    43.2    25.8    167 
 Marquette                8760    8.9      -M       *   13.4      -M       *
 Sylvan Road              7120    9.6    11.1     86    29.7    16.0    186 
 Younts Peak              8350   25.1    14.0    179    30.2    15.0    201 
                                                -----                  -----
                Basin Index (%)                  153                    188 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.3     5.1     84     7.4     7.9     94 
 Cloud Peak Reservoir     9860   14.1    13.9    101    15.7    12.4    127 
 Grave Springs            8550    6.3     8.7     72     6.9     9.8     70 
 Hansen Sawmill           8360    9.5     6.3    151    11.9     8.0    149 
 Middle Powder            7760    6.8    11.0     62     6.9    10.9     63 
 Powder River Pass        9480    7.9     9.9     80    11.7    11.8     99 
 Soldier Park             8720   13.2      -M       *   11.9      -M       *
                                                -----                  -----
                Basin Index (%)                   89                    100 
 

TONGUE RIVER

 Big Goose                7990   10.1     8.6    117    11.9    10.4    114 
 Bone Springs Div         9350   18.0    15.4    117    16.8    14.6    115 
 Burgess Junction         7880    9.5    11.1     86    10.7    11.5     93 
 Dome Lake                8880   14.6    11.4    128    14.6    12.7    115 
 Little Goose             8870   11.2      -M       *   14.4      -M       *
 Sucker Creek             8880   11.4    11.3    101    11.6    13.4     87 
 Tie Creek                6870    3.0     5.4     56    11.5    10.7    107 
                                                -----                  -----
                Basin Index (%)                  105                    105 
 

BELLE FOURCHE

 Cole Canyon              5910     .0     5.8      0     6.9     8.5     81 
                                                -----                  -----
                Basin Index (%)                    0                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0     7.2      0     8.3    11.1     75 
 North Rapid Creek        6130    1.1     6.7     16     6.9     9.1     76 
                                                -----                  -----
                Basin Index (%)                    8                     75 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   24.1    19.4    124    25.0    21.0    119 
 Blackhall Mtn            9820   35.4      -M       *   36.4      -M       *
 Columbine                9160   19.6    22.4     88    26.4    24.1    110 
 Divide Peak              8880   15.5    19.3     80    21.5    20.2    106 
 Joe Wright              10120   17.8    20.0     89    27.0    24.3    111 
 Laprele Creek            8375   10.5     9.4    112    11.2    11.6     97 
 Med Bow                 10500   36.8      -M       *   33.6      -M       *
 North French Creek      10130   23.5    27.5     85    26.1    25.3    103 
 Never Summer            10280   21.1    19.2    110    18.1      -M       *
 Old Battle              10000   35.6    28.9    123    37.0    33.1    112 
 Rawah                    9020    9.5    10.2     93    16.1    13.3    121 
 Sage Creek Basin         7850    7.6    12.6     60    15.5    13.6    114 
 Sand Lake               10050   29.7    27.0    110    26.6    23.2    115 
 South Brush Creek        8440    5.6    12.2     46    11.9    14.4     83 
 Tower                   10500   39.5    43.2     91    42.2    37.7    112 
 Webber Springs           9250   25.8    22.7    114    32.3    25.3    128 
 Willow Creek Pass        9540   17.0    11.6    147    17.8    12.6    141 
 Zirkel                   9340   33.3    26.3    127    40.9    26.9    152 
                                                -----                  -----
                Basin Index (%)                  101                    116 
 

SWEETWATER

 Deer Park                9700   29.4    14.5    203    34.5    18.5    186 
 Larsen Creek             9000   16.7    12.0    139    22.2      -M       *
 South Pass               9040   28.0    14.7    190    25.2    16.4    154 
                                                -----                  -----
                Basin Index (%)                  180                    171 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.7    13.0     75    11.0    13.8     80 
 Laprele Creek            8375   10.5     9.4    112    11.2    11.6     97 
 Reno Hill                8400   11.4    12.8     89    12.8    14.3     90 
 Windy Peak               7900    8.3     7.8    106    10.8     9.8    110 
                                                -----                  -----
                Basin Index (%)                   93                     93 
 

LARAMIE RIVER

 Brooklyn Lake           10240   22.6    19.4    116    22.2    19.8    112 
 Cinnabar Park            9574   17.3    19.7     88    21.4    22.8     94 
 Crow Creek               8330     .5     6.8      7     8.8    10.0     88 
 Deadman Hill            10220   20.3    15.2    134    19.5    16.2    120 
 Rawah                    9020    9.5    10.2     93    16.1    13.3    121 
 Roach                    9700   16.3    15.2    107    20.2    18.0    112 
                                                -----                  -----
                Basin Index (%)                  100                    108 
 

S. PLATTE

 Black Mountain           8920   10.5      -M       *   12.1      -M       *
 Crow Creek               8330     .5     6.8      7     8.8    10.0     88 
 Deadman Hill            10220   20.3    15.2    134    19.5    16.2    120 
                                                -----                  -----
                Basin Index (%)                   95                    108 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     -M    10.8       *   16.0    14.3    112 
 Divide Peak              8880   15.5    19.3     80    21.5    20.2    106 
 Elk River                8700   13.0    18.1     72    19.4    19.0    102 
 Little Snake River       8915   26.5    22.6    117    37.5    27.9    134 
 Old Battle              10000   35.6    28.9    123    37.0    33.1    112 
 Sage Creek Basin         7850    7.6    12.6     60    15.5    13.6    114 
 Sandstone RS             8150    7.6    13.1     58    15.8    17.5     90 
 Whiskey Park             8950   25.4    25.2    101    28.9    26.5    109 
                                                -----                  -----
                Basin Index (%)                   94                    111 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   20.5    12.2    168    22.7    12.5    182 
 Blind Bull Sum           8650   42.0    22.0    191      -M    18.6       *
 East Rim Divide          7930   17.2     9.9    174    20.6    11.2    184 
 Elkhart Park G.S.        9400   18.7    11.8    158    23.6    12.6    187 
 Gros Ventre Summit       8750     -M    12.7       *     -M    12.2       *
 Gunsight Pass            9820   20.9    13.2    158    23.2    13.0    178 
 Kendall R.S.             7740   20.5    11.4    180    28.3    13.6    208 
 Loomis Park              8240   26.5    14.4    184    31.4    16.5    190 
 New Fork Lake            8340   15.7    10.2    154    17.3    10.3    168 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.1    12.0    151    26.2    13.5    194 
 Spring Creek Divide      9000   38.8    22.4    173    38.6    22.7    170 
 Triple Peak              8500   35.1    21.3    165    39.2    24.1    163 
                                                -----                  -----
                Basin Index (%)                  170                    181 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    8.6      -M       *   15.1      -M       *
 Buck Pasture             9632   17.0      -M       *   22.5      -M       *
 EF Blacks Fork GS        9360   14.6      -M       *   16.1      -M       *
 Hams Fork                7840   13.2    10.7    123    19.8    10.8    183 
 Hewinta                  9500    7.9    10.6     75    16.2    13.2    123 
 Hickerson Park           9122    8.4     7.3    115    11.7     9.5    123 
 Hole-in-Rock             9168    6.5     7.0     93    12.3     9.0    137 
 Indian Creek             9425   39.0    23.5    166      -M    21.4       *
 Kelley R.S.              8180   24.5    14.7    167    29.4    17.3    170 
 Spirit Lk               10235   15.1      -M       *   17.4      -M       *
 Steel Creek Park        10158   17.5    14.8    118    19.6    15.4    127 
                                                -----                  -----
                Basin Index (%)                  132                    145 
 

UPPER BEAR RIVER

 Bear River RS            8777    9.3      -M       *   17.7      -M       *
 Bug Lake                 7987   30.3    18.0    168    32.1    18.4    174 
 Burts Miller Ranch       8000    2.9      -M       *    9.4      -M       *
 Chalk Creek #1           9171   32.2    23.0    140    34.6    23.8    145 
 Hayden Fork              9130   19.4    14.9    130    28.6    19.9    144 
 Kelley R.S.              8180   24.5    14.7    167    29.4    17.3    170 
 Lily Lake                9133   13.3    11.9    112    19.2    16.1    119 
 Monte Cristo             8932   33.9    25.8    131    37.0    24.6    150 
 Salt River Summit        7760   19.6    12.7    154      -M    15.8       *
                                                -----                  -----
                Basin Index (%)                  143                    151 

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


 -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.