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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 2:28p, 5/25/18
Temperature 78.6°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 SUNDAY: FEBRUARY 26 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   23.6    13.3    177    31.6    17.0    186 
 Black Bear               8170   35.8    28.9    124    42.8    30.3    141 
 Blind Bull Sum           8650   36.1    17.5    206      -M    15.7       *
 Cottonwood Creek         7670   24.2    16.3    148    31.0    19.2    161 
 East Rim Divide          7930   16.9     7.8    217    18.4     9.4    196 
 Grand Targhee            9260   35.5    29.2    122    31.9    24.5    130 
 Granite Creek            6770   27.4    13.4    204      -M    16.2       *
 Grassy Lake              7265   31.5    25.6    123    42.6    29.1    146 
 Gros Ventre Summit       8750   16.6     9.5    175      -M     9.9       *
 Gunsight Pass            9820   17.5    10.4    168    20.3    10.6    192 
 Lewis Lake Divide        7850   32.6    25.1    130    41.7    28.4    147 
 Phillips Bench           8200   30.3    19.3    157    38.7    22.4    173 
 Salt River Summit        7760   18.9    10.4    182    24.4    13.3    183 
 Snake River Station      6920   19.2    14.0    137    30.0    18.4    163 
 Spring Creek Divide      9000   32.4    18.0    180      -M    19.0       *
 Thumb Divide             7980   19.6    11.8    166      -M    14.4       *
 Togwotee Pass            9580   27.3    17.4    157    31.2    19.1    163 
 Two Ocean Plateau        9240     -M    21.3       *     -M    21.4       *
 Willow Creek             8380   28.5    21.9    130    41.4    26.4    157 
 Younts Peak              8350   22.0    11.5    191    24.7    12.4    199 
                                                -----                  -----
                Basin Index (%)                  154                    161 
 

MADISON-GALLATIN

 Black Bear               8170   35.8    28.9    124    42.8    30.3    141 
 Canyon                   7870   15.1    10.3    147    21.2    12.8    166 
 Madison Plateau          7750   21.9    17.5    125    29.7    20.8    143 
 West Yellowstone         6700   11.4     8.7    131    19.5    11.4    171 
 Whiskey Creek            6800   13.0    11.8    110    21.9    16.0    137 
                                                -----                  -----
                Basin Index (%)                  126                    148 
 

YELLOWSTONE

 Beartooth Lake           9360   25.1    16.2    155    20.4    15.5    132 
 Burnt Mtn                5880    5.4     4.0    135    11.0     9.2    120 
 Canyon                   7870   15.1    10.3    147    21.2    12.8    166 
 Cole Creek               7850    8.4     9.3     90     6.0     8.9     67 
 Evening Star             9200   29.8    18.9    158    33.7    21.8    155 
 Fisher Creek             9100   31.6    25.2    125    35.8    25.1    143 
 Northeast Entrance       7350    9.9     7.8    127    15.7     9.8    160 
 Parker Peak              9400   25.7    15.6    165    23.2    13.8    168 
 Sylvan Lake              8420   20.2    15.6    129    31.0    17.7    175 
 Thumb Divide             7980   19.6    11.8    166      -M    14.4       *
 Two Ocean Plateau        9240     -M    21.3       *     -M    21.4       *
 White Mill               8700   24.3    18.0    135    26.0    18.7    139 
 Wolverine                7650   13.8     8.5    162    17.5     9.8    179 
                                                -----                  -----
                Basin Index (%)                  142                    148 
 

WIND RIVER

 Burroughs Creek          8750   20.3      -M       *   22.2      -M       *
 Castle Creek             8400   11.1      -M       *   13.1      -M       *
 Cold Springs             9630   11.6     5.4    215    13.8     7.3    189 
 Deer Park                9700   27.0    10.7    252    27.9    14.9    187 
 Hobbs Park              10100   21.0     9.3    226    19.2     9.3    206 
 Kirwin                   9550   15.5     6.8    228    18.0     8.6    209 
 Little Warm              9370   13.6     7.8    174    19.2     9.7    198 
 Owl Creek                8975    6.5     3.8    171     8.1     4.2    193 
 South Pass               9040   24.8    11.1    223    22.8    13.2    173 
 St. Lawrence Alt         8620    7.2     5.0    144    11.7     6.3    186 
 Togwotee Pass            9580   27.3    17.4    157    31.2    19.1    163 
 Townsend Creek           8700   12.1     6.3    192    14.9     8.5    175 
                                                -----                  -----
                Basin Index (%)                  199                    185 
 

BIGHORN BASIN

 Bald Mtn.                9380   14.6    14.3    102    12.4    12.8     97 
 Bear Trap Meadow         8200    4.1     4.2     98     5.4     6.0     90 
 Bone Springs Div         9350   12.8    11.6    110    11.9    11.4    104 
 Grave Springs            8550    5.0     6.5     77     5.6     7.7     73 
 Kirwin                   9550   15.5     6.8    228    18.0     8.6    209 
 Marquette                8760    7.1      -M       *   10.9      -M       *
 Middle Powder            7760    5.9     7.8     76     5.4     8.6     63 
 Owl Creek                8975    6.5     3.8    171     8.1     4.2    193 
 Powder River Pass        9480    5.8     7.7     75     8.3     9.4     88 
 Shell Creek              9580   12.3    11.2    110     9.4    10.3     91 
 Timber Creek             7950    5.2     3.2    162     6.6     5.1    129 
                                                -----                  -----
                Basin Index (%)                  114                    108 
 

SHOSHONE RIVER

 Blackwater               9780   29.5    16.8    176    32.8    15.8    208 
 Evening Star             9200   29.8    18.9    158    33.7    21.8    155 
 Marquette                8760    7.1      -M       *   10.9      -M       *
 Sylvan Road              7120   14.1     9.1    155    25.3    13.7    185 
 Younts Peak              8350   22.0    11.5    191    24.7    12.4    199 
                                                -----                  -----
                Basin Index (%)                  169                    183 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.1     4.2     98     5.4     6.0     90 
 Cloud Peak Reservoir     9860    9.6    10.2     94    10.8     9.3    116 
 Grave Springs            8550    5.0     6.5     77     5.6     7.7     73 
 Hansen Sawmill           8360    6.6     4.6    143     8.5     5.9    144 
 Middle Powder            7760    5.9     7.8     76     5.4     8.6     63 
 Powder River Pass        9480    5.8     7.7     75     8.3     9.4     88 
 Soldier Park             8720    9.6      -M       *    8.2      -M       *
                                                -----                  -----
                Basin Index (%)                   90                     94 
 

TONGUE RIVER

 Big Goose                7990    7.0     6.1    115     7.9     7.7    103 
 Bone Springs Div         9350   12.8    11.6    110    11.9    11.4    104 
 Burgess Junction         7880    7.1     8.0     89     7.8     8.8     89 
 Dome Lake                8880    8.6     8.4    102    10.2     9.8    104 
 Little Goose             8870    7.6      -M       *    9.9      -M       *
 Sucker Creek             8880    8.2     8.7     94     7.8    10.3     76 
 Tie Creek                6870    4.7     4.2    112     8.6     8.1    106 
                                                -----                  -----
                Basin Index (%)                  103                     97 
 

BELLE FOURCHE

 Cole Canyon              5910    2.7     4.9     55     5.3     7.0     76 
                                                -----                  -----
                Basin Index (%)                   55                     76 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.4     6.2     71     6.5     9.2     71 
 North Rapid Creek        6130    3.7     5.8     64     5.4     7.4     73 
                                                -----                  -----
                Basin Index (%)                   68                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   22.1    16.1    137    22.3    17.3    129 
 Blackhall Mtn            9820   31.7      -M       *   30.9      -M       *
 Columbine                9160   22.4    19.3    116    23.4    20.0    117 
 Divide Peak              8880   16.9    15.3    110    19.1    16.5    116 
 Joe Wright              10120   16.9    16.0    106    23.6    19.6    120 
 Laprele Creek            8375    9.9     7.5    132     9.4     9.2    102 
 Med Bow                 10500   32.7      -M       *   29.4      -M       *
 North French Creek      10130   21.6    20.6    105    22.7    20.7    110 
 Never Summer            10280   19.7    15.8    125    16.3      -M       *
 Old Battle              10000   32.4    23.6    137    31.1    27.4    114 
 Rawah                    9020   11.5     8.4    137    13.8    10.6    130 
 Sage Creek Basin         7850   14.1    10.5    134    14.2    11.5    123 
 Sand Lake               10050   24.6    20.7    119    22.6    18.6    122 
 South Brush Creek        8440    9.6     9.9     97    10.0    11.5     87 
 Tower                   10500   37.6    35.6    106    37.2    31.2    119 
 Webber Springs           9250   25.6    18.3    140    28.9    20.8    139 
 Willow Creek Pass        9540   15.6     9.2    170    15.9    10.1    157 
 Zirkel                   9340   36.3    22.6    161    36.9    23.0    160 
                                                -----                  -----
                Basin Index (%)                  125                    124 
 

SWEETWATER

 Deer Park                9700   27.0    10.7    252    27.9    14.9    187 
 Larsen Creek             9000   17.7     9.3    190    20.1      -M       *
 South Pass               9040   24.8    11.1    223    22.8    13.2    173 
                                                -----                  -----
                Basin Index (%)                  223                    180 
 

LOWER N. PLATTE

 Casper Mtn.              7900    8.9     9.8     91     8.4    10.9     77 
 Laprele Creek            8375    9.9     7.5    132     9.4     9.2    102 
 Reno Hill                8400    9.6     9.6    100     9.5    10.9     87 
 Windy Peak               7900    8.8     5.7    154     9.0     7.7    117 
                                                -----                  -----
                Basin Index (%)                  114                     94 
 

LARAMIE RIVER

 Brooklyn Lake           10240   21.2    14.7    144    18.9    15.8    120 
 Cinnabar Park            9574   16.6    16.7     99    18.8    19.4     97 
 Crow Creek               8330    4.8     6.6     73     7.3     7.7     95 
 Deadman Hill            10220   17.4    12.3    141    16.3    12.5    130 
 Rawah                    9020   11.5     8.4    137    13.8    10.6    130 
 Roach                    9700   14.8    12.2    121    17.3    14.4    120 
                                                -----                  -----
                Basin Index (%)                  122                    115 
 

S. PLATTE

 Black Mountain           8920    8.7      -M       *    9.8      -M       *
 Crow Creek               8330    4.8     6.6     73     7.3     7.7     95 
 Deadman Hill            10220   17.4    12.3    141    16.3    12.5    130 
                                                -----                  -----
                Basin Index (%)                  117                    117 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440   10.0     9.7    103    14.0    11.9    118 
 Divide Peak              8880   16.9    15.3    110    19.1    16.5    116 
 Elk River                8700   18.1    14.9    121    17.6    15.7    112 
 Little Snake River       8915   28.8    19.5    148    33.2    24.7    134 
 Old Battle              10000   32.4    23.6    137    31.1    27.4    114 
 Sage Creek Basin         7850   14.1    10.5    134    14.2    11.5    123 
 Sandstone RS             8150   11.7    10.3    114    14.0    14.9     94 
 Whiskey Park             8950   23.8    20.8    114    25.5    22.0    116 
                                                -----                  -----
                Basin Index (%)                  125                    117 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   18.4     9.8    188    20.4    10.3    198 
 Blind Bull Sum           8650   36.1    17.5    206      -M    15.7       *
 East Rim Divide          7930   16.9     7.8    217    18.4     9.4    196 
 Elkhart Park G.S.        9400   15.7     9.2    171    20.5    10.3    199 
 Gros Ventre Summit       8750   16.6     9.5    175      -M     9.9       *
 Gunsight Pass            9820   17.5    10.4    168    20.3    10.6    192 
 Kendall R.S.             7740   20.2     9.6    210    24.1    11.5    210 
 Loomis Park              8240   23.7    11.5    206    27.1    13.8    196 
 New Fork Lake            8340   14.8     8.0    185    14.9     8.6    173 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.4     9.4    196    23.5    11.3    208 
 Spring Creek Divide      9000   32.4    18.0    180      -M    19.0       *
 Triple Peak              8500   32.2    16.5    195    33.7    19.9    169 
                                                -----                  -----
                Basin Index (%)                  192                    192 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    9.7      -M       *   12.5      -M       *
 Buck Pasture             9632   16.5      -M       *   19.1      -M       *
 EF Blacks Fork GS        9360   13.7      -M       *     -M      -M       *
 Hams Fork                7840   15.6     9.0    173    17.4     9.0    193 
 Hewinta                  9500   10.9     7.6    143    13.0    10.6    123 
 Hickerson Park           9122    7.7     5.6    138     7.5     7.4    101 
 Hole-in-Rock             9168    6.2     5.4    115     8.2     6.9    119 
 Indian Creek             9425   33.2    18.3    181      -M    17.5       *
 Kelley R.S.              8180   23.3    11.7    199    26.7    14.4    185 
 Spirit Lk               10235   13.2      -M       *   14.0      -M       *
 Steel Creek Park        10158   14.0    11.2    125    15.8    12.1    131 
                                                -----                  -----
                Basin Index (%)                  161                    147 
 

UPPER BEAR RIVER

 Bear River RS            8777   11.6      -M       *   14.1      -M       *
 Bug Lake                 7987     -M    14.4       *     -M    15.2       *
 Burts Miller Ranch       8000    7.1      -M       *    7.3      -M       *
 Chalk Creek #1           9171   29.0    17.8    163    28.0    19.1    147 
 Hayden Fork              9130   20.4    11.7    174      -M    16.1       *
 Kelley R.S.              8180   23.3    11.7    199    26.7    14.4    185 
 Lily Lake                9133   13.4     9.9    135    15.8    13.0    122 
 Monte Cristo             8932   30.5    20.2    151    29.5    20.2    146 
 Salt River Summit        7760   18.9    10.4    182    24.4    13.3    183 
                                                -----                  -----
                Basin Index (%)                  166                    156 

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


 -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.