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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 WEDNESDAY: MARCH 29 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   24.2    14.7    165    38.1    19.9    191 
 Black Bear               8170   43.5    35.4    123    51.0    36.1    141 
 Blind Bull Sum           8650   41.7    21.8    191      -M    18.5       *
 Cottonwood Creek         7670   26.5    20.9    127    35.8    23.3    154 
 East Rim Divide          7930   17.4     9.8    178    20.5    11.2    183 
 Grand Targhee            9260   42.4    35.4    120    38.4    28.7    134 
 Granite Creek            6770   27.9    14.9    187    34.9    18.9    185 
 Grassy Lake              7265   35.0    31.3    112    51.9    34.2    152 
 Gros Ventre Summit       8750     -M    12.6       *     -M    12.2       *
 Gunsight Pass            9820   21.2    13.1    162    23.1    12.9    179 
 Lewis Lake Divide        7850   42.2    29.3    144    53.0    33.6    158 
 Phillips Bench           8200   35.7    23.8    150    45.0    26.7    169 
 Salt River Summit        7760   19.6    12.7    154    27.8    15.8    176 
 Snake River Station      6920   19.0    15.8    120    34.2    21.4    160 
 Spring Creek Divide      9000   38.6    22.4    172    38.5    22.6    170 
 Thumb Divide             7980   22.8    15.1    151    26.9    17.5    154 
 Togwotee Pass            9580   32.0    21.5    149    36.5    22.9    159 
 Two Ocean Plateau        9240     -M    25.3       *     -M    25.8       *
 Willow Creek             8380   28.2    27.0    104    46.7    31.6    148 
 Younts Peak              8350   24.8    13.9    178    30.2    14.9    203 
                                                -----                  -----
                Basin Index (%)                  143                    161 
 

MADISON-GALLATIN

 Black Bear               8170   43.5    35.4    123    51.0    36.1    141 
 Canyon                   7870   17.2    12.2    141    24.6    15.2    162 
 Madison Plateau          7750   25.9    21.1    123    34.5    24.9    139 
 West Yellowstone         6700    8.7    10.2     85    22.1    13.3    166 
 Whiskey Creek            6800   13.5    14.8     91    25.7    19.1    135 
                                                -----                  -----
                Basin Index (%)                  116                    145 
 

YELLOWSTONE

 Beartooth Lake           9360   31.1    20.7    150    26.6    18.5    144 
 Burnt Mtn                5880     .7     4.5     16    12.7    11.6    109 
 Canyon                   7870   17.2    12.2    141    24.6    15.2    162 
 Cole Creek               7850   10.1    13.0     78     7.1    11.7     61 
 Evening Star             9200   36.8    23.8    155    43.2    25.7    168 
 Fisher Creek             9100   42.2    29.4    144    45.5    30.0    152 
 Northeast Entrance       7350    9.6     9.8     98    19.8    11.5    172 
 Parker Peak              9400   32.3    18.5    175    32.6    16.5    198 
 Sylvan Lake              8420   22.6    18.9    120    35.5    21.0    169 
 Thumb Divide             7980   22.8    15.1    151    26.9    17.5    154 
 Two Ocean Plateau        9240     -M    25.3       *     -M    25.8       *
 White Mill               8700   34.1    21.3    160    34.8    22.3    156 
 Wolverine                7650    7.4     8.9     83    20.2    11.4    177 
                                                -----                  -----
                Basin Index (%)                  136                    155 
 

WIND RIVER

 Burroughs Creek          8750   23.4      -M       *   26.4      -M       *
 Castle Creek             8400   10.9      -M       *   14.6      -M       *
 Cold Springs             9630   13.5     7.1    190    16.0     9.2    174 
 Deer Park                9700   29.4    14.3    206    34.5    18.3    189 
 Hobbs Park              10100   24.6    13.0    189    22.9    12.1    189 
 Kirwin                   9550   20.4     9.1    224    22.7    10.7    212 
 Little Warm              9370   16.7    10.1    165    22.3    12.0    186 
 Owl Creek                8975    7.8     5.1    153    10.2     5.5    185 
 South Pass               9040   28.0    14.6    192    25.2    16.3    155 
 St. Lawrence Alt         8620    6.3     6.7     94    13.5     8.2    165 
 Togwotee Pass            9580   32.0    21.5    149    36.5    22.9    159 
 Townsend Creek           8700   14.1     8.8    160    18.1    11.0    165 
                                                -----                  -----
                Basin Index (%)                  175                    176 
 

BIGHORN BASIN

 Bald Mtn.                9380   18.2    17.8    102    15.7    15.9     99 
 Bear Trap Meadow         8200    4.4     5.1     86     7.3     7.7     95 
 Bone Springs Div         9350   18.0    15.1    119    16.6    14.4    115 
 Grave Springs            8550    6.3     8.6     73     6.8     9.7     70 
 Kirwin                   9550   20.4     9.1    224    22.7    10.7    212 
 Marquette                8760    8.8      -M       *   13.2      -M       *
 Middle Powder            7760    6.8    10.8     63     6.7    10.8     62 
 Owl Creek                8975    7.8     5.1    153    10.2     5.5    185 
 Powder River Pass        9480    7.9     9.8     81    11.6    11.6    100 
 Shell Creek              9580   16.2    14.0    116    13.2    12.8    103 
 Timber Creek             7950    5.3     4.5    118     8.5     6.8    125 
                                                -----                  -----
                Basin Index (%)                  111                    113 
 

SHOSHONE RIVER

 Blackwater               9780   36.3    21.7    167    40.2    19.2    209 
 Evening Star             9200   36.8    23.8    155    43.2    25.7    168 
 Marquette                8760    8.8      -M       *   13.2      -M       *
 Sylvan Road              7120   10.2    11.0     93    29.7    15.8    188 
 Younts Peak              8350   24.8    13.9    178    30.2    14.9    203 
                                                -----                  -----
                Basin Index (%)                  154                    190 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.4     5.1     86     7.3     7.7     95 
 Cloud Peak Reservoir     9860   14.0    13.7    102    15.5    12.2    127 
 Grave Springs            8550    6.3     8.6     73     6.8     9.7     70 
 Hansen Sawmill           8360    9.5     6.2    153    11.9     7.9    151 
 Middle Powder            7760    6.8    10.8     63     6.7    10.8     62 
 Powder River Pass        9480    7.9     9.8     81    11.6    11.6    100 
 Soldier Park             8720   13.2      -M       *   11.8      -M       *
                                                -----                  -----
                Basin Index (%)                   90                    100 
 

TONGUE RIVER

 Big Goose                7990   10.1     8.4    120    11.8    10.1    117 
 Bone Springs Div         9350   18.0    15.1    119    16.6    14.4    115 
 Burgess Junction         7880    9.5    10.9     87    10.5    11.4     92 
 Dome Lake                8880   14.5    11.2    129    14.5    12.5    116 
 Little Goose             8870   11.2      -M       *   14.4      -M       *
 Sucker Creek             8880   11.4    11.2    102    11.4    13.2     86 
 Tie Creek                6870    3.0     5.4     56    11.5    10.5    110 
                                                -----                  -----
                Basin Index (%)                  107                    106 
 

BELLE FOURCHE

 Cole Canyon              5910     .0     5.7      0     6.9     8.4     82 
                                                -----                  -----
                Basin Index (%)                    0                     82 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0     7.2      0     8.3    11.0     75 
 North Rapid Creek        6130    1.5     6.7     22     6.9     9.0     77 
                                                -----                  -----
                Basin Index (%)                   11                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   24.0    19.3    124    25.0    20.8    120 
 Blackhall Mtn            9820   35.3      -M       *   36.4      -M       *
 Columbine                9160   19.5    22.3     87    26.5    24.0    110 
 Divide Peak              8880   15.4    19.1     81    21.4    20.1    106 
 Joe Wright              10120   17.7    19.9     89    27.0    24.2    112 
 Laprele Creek            8375   10.2     9.4    109    11.1    11.5     97 
 Med Bow                 10500   36.8      -M       *   33.6      -M       *
 North French Creek      10130   23.4    27.3     86    26.1    25.2    104 
 Never Summer            10280   21.1    19.1    110    18.1      -M       *
 Old Battle              10000   35.7    28.6    125    36.8    32.9    112 
 Rawah                    9020    9.6    10.1     95    16.1    13.1    123 
 Sage Creek Basin         7850    7.5    12.5     60    15.5    13.6    114 
 Sand Lake               10050   29.5    26.7    110    26.4    23.1    114 
 South Brush Creek        8440    5.8    12.1     48    11.8    14.2     83 
 Tower                   10500   39.2    42.7     92    42.1    37.5    112 
 Webber Springs           9250   25.7    22.6    114    32.3    25.1    129 
 Willow Creek Pass        9540   17.0    11.6    147    17.8    12.5    142 
 Zirkel                   9340   33.3    26.2    127    40.9    26.8    153 
                                                -----                  -----
                Basin Index (%)                  102                    116 
 

SWEETWATER

 Deer Park                9700   29.4    14.3    206    34.5    18.3    189 
 Larsen Creek             9000   16.8    11.9    141    22.1      -M       *
 South Pass               9040   28.0    14.6    192    25.2    16.3    155 
                                                -----                  -----
                Basin Index (%)                  182                    173 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.6    12.9     74    10.9    13.7     80 
 Laprele Creek            8375   10.2     9.4    109    11.1    11.5     97 
 Reno Hill                8400   11.3    12.8     88    12.7    14.1     90 
 Windy Peak               7900    8.1     7.7    105    10.7     9.7    110 
                                                -----                  -----
                Basin Index (%)                   92                     93 
 

LARAMIE RIVER

 Brooklyn Lake           10240   22.5    19.1    118    22.0    19.6    112 
 Cinnabar Park            9574   17.0    19.6     87    21.4    22.7     94 
 Crow Creek               8330     .5     6.8      7     8.8     9.9     89 
 Deadman Hill            10220   20.1    15.1    133    19.4    16.0    121 
 Rawah                    9020    9.6    10.1     95    16.1    13.1    123 
 Roach                    9700   16.2    15.0    108    20.2    17.9    113 
                                                -----                  -----
                Basin Index (%)                  100                    109 
 

S. PLATTE

 Black Mountain           8920   10.4      -M       *   12.1      -M       *
 Crow Creek               8330     .5     6.8      7     8.8     9.9     89 
 Deadman Hill            10220   20.1    15.1    133    19.4    16.0    121 
                                                -----                  -----
                Basin Index (%)                   94                    109 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.2    10.9     29    16.1    14.2    113 
 Divide Peak              8880   15.4    19.1     81    21.4    20.1    106 
 Elk River                8700   13.3    18.0     74    19.4    18.9    103 
 Little Snake River       8915   26.6    22.3    119    37.5    27.8    135 
 Old Battle              10000   35.7    28.6    125    36.8    32.9    112 
 Sage Creek Basin         7850    7.5    12.5     60    15.5    13.6    114 
 Sandstone RS             8150    8.1    13.1     62    15.7    17.4     90 
 Whiskey Park             8950   25.3    25.0    101    29.0    26.4    110 
                                                -----                  -----
                Basin Index (%)                   90                    112 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   20.3    12.2    166    22.6    12.5    181 
 Blind Bull Sum           8650   41.7    21.8    191      -M    18.5       *
 East Rim Divide          7930   17.4     9.8    178    20.5    11.2    183 
 Elkhart Park G.S.        9400   18.7    11.7    160    23.5    12.5    188 
 Gros Ventre Summit       8750     -M    12.6       *     -M    12.2       *
 Gunsight Pass            9820   21.2    13.1    162    23.1    12.9    179 
 Kendall R.S.             7740   20.6    11.3    182    28.2    13.6    207 
 Loomis Park              8240   26.9    14.4    187    31.5    16.4    192 
 New Fork Lake            8340   16.1    10.2    158    17.2    10.2    169 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.2    11.8    154    26.1    13.4    195 
 Spring Creek Divide      9000   38.6    22.4    172    38.5    22.6    170 
 Triple Peak              8500   35.1    21.1    166    39.2    24.0    163 
                                                -----                  -----
                Basin Index (%)                  172                    181 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    8.7      -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   13.9    10.6    131    19.6    10.8    181 
 Hewinta                  9500    7.9    10.4     76    16.0    13.1    122 
 Hickerson Park           9122    8.5     7.2    118    11.5     9.4    122 
 Hole-in-Rock             9168    6.4     7.0     91    12.1     8.9    136 
 Indian Creek             9425   38.8    23.2    167      -M    21.3       *
 Kelley R.S.              8180   24.5    14.7    167    29.3    17.2    170 
 Spirit Lk               10235   15.0      -M       *   17.4      -M       *
 Steel Creek Park        10158   17.5    14.6    120    19.6    15.3    128 
                                                -----                  -----
                Basin Index (%)                  134                    145 
 

UPPER BEAR RIVER

 Bear River RS            8777    9.6      -M       *   17.7      -M       *
 Bug Lake                 7987   30.3    17.9    169    32.1    18.3    175 
 Burts Miller Ranch       8000    3.1      -M       *    9.3      -M       *
 Chalk Creek #1           9171   32.2    22.7    142    34.6    23.6    147 
 Hayden Fork              9130   19.5    14.8    132    28.6    19.7    145 
 Kelley R.S.              8180   24.5    14.7    167    29.3    17.2    170 
 Lily Lake                9133   13.3    11.9    112    19.2    16.0    120 
 Monte Cristo             8932   34.0    25.6    133    37.0    24.5    151 
 Salt River Summit        7760   19.6    12.7    154    27.8    15.8    176 
                                                -----                  -----
                Basin Index (%)                  144                    154 
----------------------------------------------------------------------------

 -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.