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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 1 , 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    13.5    179    31.7    17.2    184 
 Black Bear               8170   37.5    29.6    127    44.2    30.8    144 
 Blind Bull Sum           8650   36.5    17.9    204      -M    16.0       *
 Cottonwood Creek         7670   25.0    16.9    148    31.5    19.6    161 
 East Rim Divide          7930   17.3     8.1    214    18.8     9.6    196 
 Grand Targhee            9260   35.9    30.2    119    32.1    24.8    129 
 Granite Creek            6770   27.9    13.8    202      -M    16.5       *
 Grassy Lake              7265   32.6    26.2    124    42.8    29.4    146 
 Gros Ventre Summit       8750   16.9     9.7    174    19.0    10.1    188 
 Gunsight Pass            9820   17.7    10.6    167    20.2    10.9    185 
 Lewis Lake Divide        7850   33.3    25.2    132    41.8    28.7    146 
 Phillips Bench           8200   31.0    19.7    157    39.0    22.7    172 
 Salt River Summit        7760   19.1    10.6    180    24.6    13.4    184 
 Snake River Station      6920   19.7    14.2    139    30.1    18.7    161 
 Spring Creek Divide      9000   33.3    18.6    179    29.6    19.3    153 
 Thumb Divide             7980   19.8    12.3    161    21.4    14.6    147 
 Togwotee Pass            9580   27.7    17.7    156    31.6    19.4    163 
 Two Ocean Plateau        9240     -M    21.6       *     -M    21.6       *
 Willow Creek             8380   28.7    22.2    129    41.6    26.8    155 
 Younts Peak              8350   22.5    11.7    192    25.0    12.6    198 
                                                -----                  -----
                Basin Index (%)                  154                    160 
 

MADISON-GALLATIN

 Black Bear               8170   37.5    29.6    127    44.2    30.8    144 
 Canyon                   7870   15.3    10.5    146    21.5    13.0    165 
 Madison Plateau          7750   22.7    17.8    128    30.0    21.2    142 
 West Yellowstone         6700   11.4     9.0    127    19.8    11.7    169 
 Whiskey Creek            6800   13.8    12.0    115    22.5    16.3    138 
                                                -----                  -----
                Basin Index (%)                  128                    148 
 

YELLOWSTONE

 Beartooth Lake           9360   25.4    16.7    152    20.8    15.7    132 
 Burnt Mtn                5880    5.2     4.0    130    11.1     9.5    117 
 Canyon                   7870   15.3    10.5    146    21.5    13.0    165 
 Cole Creek               7850    8.4     9.9     85     6.1     9.1     67 
 Evening Star             9200   30.0    19.1    157    35.5    22.1    161 
 Fisher Creek             9100   32.6    25.8    126    36.7    25.5    144 
 Northeast Entrance       7350   10.3     8.2    126    15.9     9.9    161 
 Parker Peak              9400   26.2    16.0    164    23.2    14.0    166 
 Sylvan Lake              8420   20.5    15.9    129    31.3    18.0    174 
 Thumb Divide             7980   19.8    12.3    161    21.4    14.6    147 
 Two Ocean Plateau        9240     -M    21.6       *     -M    21.6       *
 White Mill               8700   25.0    18.3    137    26.6    18.9    141 
 Wolverine                7650   13.7     8.5    161    17.6    10.0    176 
                                                -----                  -----
                Basin Index (%)                  141                    148 
 

WIND RIVER

 Burroughs Creek          8750   20.6      -M       *   22.3      -M       *
 Castle Creek             8400   11.2      -M       *   13.4      -M       *
 Cold Springs             9630   11.6     5.5    211    13.8     7.5    184 
 Deer Park                9700   27.8    10.8    257    28.5    15.3    186 
 Hobbs Park              10100   21.3     9.7    220    19.6     9.5    206 
 Kirwin                   9550   15.8     7.0    226    18.2     8.8    207 
 Little Warm              9370   13.8     7.9    175    19.3     9.8    197 
 Owl Creek                8975    6.7     3.9    172     8.3     4.3    193 
 South Pass               9040   25.4    11.4    223    22.9    13.5    170 
 St. Lawrence Alt         8620    7.2     5.2    138    11.8     6.5    182 
 Togwotee Pass            9580   27.7    17.7    156    31.6    19.4    163 
 Townsend Creek           8700   12.3     6.5    189    15.2     8.6    177 
                                                -----                  -----
                Basin Index (%)                  198                    183 
 

BIGHORN BASIN

 Bald Mtn.                9380   15.1    14.7    103    13.0    13.1     99 
 Bear Trap Meadow         8200    4.4     4.4    100     5.6     6.1     92 
 Bone Springs Div         9350   13.4    12.0    112    12.7    11.7    109 
 Grave Springs            8550    5.1     6.9     74     5.7     7.9     72 
 Kirwin                   9550   15.8     7.0    226    18.2     8.8    207 
 Marquette                8760    7.2      -M       *   11.0      -M       *
 Middle Powder            7760    5.9     8.0     74     5.6     8.7     64 
 Owl Creek                8975    6.7     3.9    172     8.3     4.3    193 
 Powder River Pass        9480    6.2     8.0     78     8.8     9.6     92 
 Shell Creek              9580   12.8    11.6    110     9.8    10.7     92 
 Timber Creek             7950    5.2     3.7    141     6.6     5.3    125 
                                                -----                  -----
                Basin Index (%)                  113                    109 
 

SHOSHONE RIVER

 Blackwater               9780   29.9    17.2    174    33.1    16.1    206 
 Evening Star             9200   30.0    19.1    157    35.5    22.1    161 
 Marquette                8760    7.2      -M       *   11.0      -M       *
 Sylvan Road              7120   14.4     9.4    153    25.6    13.9    184 
 Younts Peak              8350   22.5    11.7    192    25.0    12.6    198 
                                                -----                  -----
                Basin Index (%)                  169                    184 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.4     4.4    100     5.6     6.1     92 
 Cloud Peak Reservoir     9860    9.8    10.4     94    11.1     9.6    116 
 Grave Springs            8550    5.1     6.9     74     5.7     7.9     72 
 Hansen Sawmill           8360    6.7     4.7    143     8.6     6.1    141 
 Middle Powder            7760    5.9     8.0     74     5.6     8.7     64 
 Powder River Pass        9480    6.2     8.0     78     8.8     9.6     92 
 Soldier Park             8720    9.7      -M       *    8.4      -M       *
                                                -----                  -----
                Basin Index (%)                   90                     95 
 

TONGUE RIVER

 Big Goose                7990    7.1     6.2    115     8.0     7.9    101 
 Bone Springs Div         9350   13.4    12.0    112    12.7    11.7    109 
 Burgess Junction         7880    7.3     8.3     88     8.3     9.0     92 
 Dome Lake                8880    8.9     8.7    102    10.4    10.0    104 
 Little Goose             8870    7.8      -M       *   10.1      -M       *
 Sucker Creek             8880    8.6     8.9     97     8.3    10.6     78 
 Tie Creek                6870    4.8     4.3    112     8.9     8.4    106 
                                                -----                  -----
                Basin Index (%)                  104                     98 
 

BELLE FOURCHE

 Cole Canyon              5910    3.0     5.0     60     5.6     7.1     79 
                                                -----                  -----
                Basin Index (%)                   60                     79 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.3     6.4     67     6.6     9.4     70 
 North Rapid Creek        6130    4.3     5.9     73     5.6     7.6     74 
                                                -----                  -----
                Basin Index (%)                   70                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   22.5    16.7    135    22.7    17.7    128 
 Blackhall Mtn            9820   32.8      -M       *   31.2      -M       *
 Columbine                9160   22.7    19.8    115    24.3    20.3    120 
 Divide Peak              8880   17.8    15.8    113    19.8    16.8    118 
 Joe Wright              10120   17.5    16.6    105    24.3    19.9    122 
 Laprele Creek            8375   10.3     7.8    132     9.7     9.3    104 
 Med Bow                 10500   33.7      -M       *   30.2      -M       *
 North French Creek      10130   22.2    21.1    105    23.4    21.1    111 
 Never Summer            10280   20.4    16.2    126    16.8      -M       *
 Old Battle              10000   33.4    23.9    140    31.1    27.9    111 
 Rawah                    9020   12.2     8.8    139    14.6    10.9    134 
 Sage Creek Basin         7850   14.6    10.6    138    14.7    11.7    126 
 Sand Lake               10050   25.6    21.2    121    23.6    18.9    125 
 South Brush Creek        8440    9.9    10.3     96    10.5    11.7     90 
 Tower                   10500   37.7    36.3    104    37.3    31.8    117 
 Webber Springs           9250   26.2    18.7    140    29.8    21.1    141 
 Willow Creek Pass        9540   15.8     9.5    166    16.2    10.4    156 
 Zirkel                   9340   37.5    23.0    163    37.1    23.4    159 
                                                -----                  -----
                Basin Index (%)                  125                    124 
 

SWEETWATER

 Deer Park                9700   27.8    10.8    257    28.5    15.3    186 
 Larsen Creek             9000   18.1     9.5    191    20.5      -M       *
 South Pass               9040   25.4    11.4    223    22.9    13.5    170 
                                                -----                  -----
                Basin Index (%)                  225                    178 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.2    10.2     90     8.7    11.1     78 
 Laprele Creek            8375   10.3     7.8    132     9.7     9.3    104 
 Reno Hill                8400    9.8    10.0     98     9.8    11.1     88 
 Windy Peak               7900    9.0     5.7    158     9.3     7.8    119 
                                                -----                  -----
                Basin Index (%)                  114                     95 
 

LARAMIE RIVER

 Brooklyn Lake           10240   21.7    15.0    145    19.4    16.0    121 
 Cinnabar Park            9574   17.1    17.1    100    19.5    19.7     99 
 Crow Creek               8330    4.7     6.7     70     7.4     7.8     95 
 Deadman Hill            10220   18.1    12.4    146    17.2    12.7    135 
 Rawah                    9020   12.2     8.8    139    14.6    10.9    134 
 Roach                    9700   15.0    12.4    121    17.7    14.7    120 
                                                -----                  -----
                Basin Index (%)                  123                    117 
 

S. PLATTE

 Black Mountain           8920    9.0      -M       *   10.2      -M       *
 Crow Creek               8330    4.7     6.7     70     7.4     7.8     95 
 Deadman Hill            10220   18.1    12.4    146    17.2    12.7    135 
                                                -----                  -----
                Basin Index (%)                  119                    120 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440   11.0     9.9    111    14.7    12.1    121 
 Divide Peak              8880   17.8    15.8    113    19.8    16.8    118 
 Elk River                8700   19.4    15.5    125    18.7    15.9    118 
 Little Snake River       8915   29.7    19.7    151    33.3    24.9    134 
 Old Battle              10000   33.4    23.9    140    31.1    27.9    111 
 Sage Creek Basin         7850   14.6    10.6    138    14.7    11.7    126 
 Sandstone RS             8150   12.2    10.4    117    14.5    15.0     97 
 Whiskey Park             8950   24.8    21.5    115    26.2    22.4    117 
                                                -----                  -----
                Basin Index (%)                  128                    118 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.0    10.1    188    20.7    10.5    197 
 Blind Bull Sum           8650   36.5    17.9    204      -M    16.0       *
 East Rim Divide          7930   17.3     8.1    214    18.8     9.6    196 
 Elkhart Park G.S.        9400   16.1     9.4    171    20.4    10.5    194 
 Gros Ventre Summit       8750   16.9     9.7    174    19.0    10.1    188 
 Gunsight Pass            9820   17.7    10.6    167    20.2    10.9    185 
 Kendall R.S.             7740   20.7     9.7    213    24.3    11.7    208 
 Loomis Park              8240   24.3    11.7    208    27.2    14.0    194 
 New Fork Lake            8340   14.9     8.2    182    14.9     8.8    169 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.9     9.6    197    23.7    11.5    206 
 Spring Creek Divide      9000   33.3    18.6    179    29.6    19.3    153 
 Triple Peak              8500   32.9    16.8    196    34.5    20.2    171 
                                                -----                  -----
                Basin Index (%)                  191                    185 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869   10.4      -M       *   13.0      -M       *
 Buck Pasture             9632   17.4      -M       *   19.6      -M       *
 EF Blacks Fork GS        9360   14.4      -M       *   13.5      -M       *
 Hams Fork                7840   15.9     9.2    173    17.6     9.1    193 
 Hewinta                  9500   11.9     7.9    151    13.8    10.8    128 
 Hickerson Park           9122    8.1     5.9    137     8.1     7.6    107 
 Hole-in-Rock             9168    6.6     5.6    118     8.7     7.1    123 
 Indian Creek             9425   34.0    19.0    179      -M    17.8       *
 Kelley R.S.              8180   23.9    12.1    198    26.8    14.6    184 
 Spirit Lk               10235   13.6      -M       *   14.4      -M       *
 Steel Creek Park        10158   14.6    11.5    127    16.2    12.4    131 
                                                -----                  -----
                Basin Index (%)                  162                    148 
 

UPPER BEAR RIVER

 Bear River RS            8777   12.4      -M       *   14.8      -M       *
 Bug Lake                 7987   28.0    14.8    189    27.9    15.5    180 
 Burts Miller Ranch       8000    7.7      -M       *    8.3      -M       *
 Chalk Creek #1           9171   30.5    18.3    167    30.7    19.4    158 
 Hayden Fork              9130   21.6    12.1    179    25.6    16.4    156 
 Kelley R.S.              8180   23.9    12.1    198    26.8    14.6    184 
 Lily Lake                9133   14.3    10.3    139    16.5    13.2    125 
 Monte Cristo             8932   31.8    21.0    151    30.8    20.5    150 
 Salt River Summit        7760   19.1    10.6    180    24.6    13.4    184 
                                                -----                  -----
                Basin Index (%)                  171                    162 

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


 -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.