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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 12:57a, 8/20/18
Temperature 46.9°F
Wind 0.0 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: MARCH 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   24.5    14.6    168    37.9    19.5    194 
 Black Bear               8170   42.1    34.2    123    50.3    35.4    142 
 Blind Bull Sum           8650   41.8    21.2    197      -M    18.2       *
 Cottonwood Creek         7670   26.4    20.5    129    35.8    22.9    156 
 East Rim Divide          7930   17.6     9.7    181    20.5    11.0    186 
 Grand Targhee            9260   41.8    34.2    122    38.0    28.1    135 
 Granite Creek            6770   28.3    14.8    191    34.9    18.6    188 
 Grassy Lake              7265   34.4    30.5    113    51.3    33.6    153 
 Gros Ventre Summit       8750   19.0    12.1    157    23.2    11.9    195 
 Gunsight Pass            9820   20.7    12.7    163    23.1    12.6    183 
 Lewis Lake Divide        7850   41.2    28.8    143    52.6    33.1    159 
 Phillips Bench           8200   35.2    23.3    151    44.7    26.1    171 
 Salt River Summit        7760   19.7    12.4    159      -M    15.5       *
 Snake River Station      6920   19.1    15.7    122    33.8    21.0    161 
 Spring Creek Divide      9000   38.3    22.1    173    38.2    22.2    172 
 Thumb Divide             7980   22.8    14.9    153    26.7    17.1    156 
 Togwotee Pass            9580   31.9    21.2    150    36.3    22.4    162 
 Two Ocean Plateau        9240     -M    24.8       *     -M    25.2       *
 Willow Creek             8380   28.8    25.8    112    46.6    31.0    150 
 Younts Peak              8350   25.0    13.7    182    30.1    14.6    206 
                                                -----                  -----
                Basin Index (%)                  146                    164 
 

MADISON-GALLATIN

 Black Bear               8170   42.1    34.2    123    50.3    35.4    142 
 Canyon                   7870   16.9    12.0    141    24.4    15.0    163 
 Madison Plateau          7750   25.3    20.7    122    34.0    24.4    139 
 West Yellowstone         6700    9.2    10.1     91    21.9    13.0    168 
 Whiskey Creek            6800   13.2    14.5     91    25.2    18.7    135 
                                                -----                  -----
                Basin Index (%)                  117                    146 
 

YELLOWSTONE

 Beartooth Lake           9360   30.9    20.3    152    26.4    18.2    145 
 Burnt Mtn                5880    1.8     4.7     38    12.6    11.2    112 
 Canyon                   7870   16.9    12.0    141    24.4    15.0    163 
 Cole Creek               7850    9.7    12.7     76     6.8    11.3     60 
 Evening Star             9200   36.7    23.3    158    43.0    25.2    171 
 Fisher Creek             9100   41.7    28.7    145    44.7    29.4    152 
 Northeast Entrance       7350    9.5     9.6     99    19.3    11.3    171 
 Parker Peak              9400   31.8    18.2    175    32.4    16.2    200 
 Sylvan Lake              8420   22.2    18.7    119    35.4    20.6    172 
 Thumb Divide             7980   22.8    14.9    153    26.7    17.1    156 
 Two Ocean Plateau        9240     -M    24.8       *     -M    25.2       *
 White Mill               8700   33.4    20.9    160    34.0    21.9    155 
 Wolverine                7650    8.0     8.9     90    20.0    11.3    177 
                                                -----                  -----
                Basin Index (%)                  138                    156 
 

WIND RIVER

 Burroughs Creek          8750   23.3      -M       *   26.1      -M       *
 Castle Creek             8400   10.9      -M       *   14.3      -M       *
 Cold Springs             9630   12.8     6.8    188    15.6     9.0    173 
 Deer Park                9700   28.8    14.1    204    33.8    17.7    191 
 Hobbs Park              10100   23.7    12.7    187    22.2    11.6    191 
 Kirwin                   9550   19.7     8.8    224    22.0    10.4    212 
 Little Warm              9370   16.5     9.8    168    22.1    11.7    189 
 Owl Creek                8975    7.3     4.8    152     9.7     5.3    183 
 South Pass               9040   27.2    14.4    189    24.5    15.9    154 
 St. Lawrence Alt         8620    6.0     6.5     92    13.0     7.9    165 
 Togwotee Pass            9580   31.9    21.2    150    36.3    22.4    162 
 Townsend Creek           8700   13.0     8.7    149    17.1    10.5    163 
                                                -----                  -----
                Basin Index (%)                  173                    177 
 

BIGHORN BASIN

 Bald Mtn.                9380   18.1    17.0    106    15.5    15.4    101 
 Bear Trap Meadow         8200    4.4     5.2     85     6.9     7.5     92 
 Bone Springs Div         9350   17.3    14.5    119    15.9    14.0    114 
 Grave Springs            8550    6.3     8.4     75     6.7     9.3     72 
 Kirwin                   9550   19.7     8.8    224    22.0    10.4    212 
 Marquette                8760    8.0      -M       *   12.5      -M       *
 Middle Powder            7760    6.3    10.5     60     6.2    10.5     59 
 Owl Creek                8975    7.3     4.8    152     9.7     5.3    183 
 Powder River Pass        9480    7.4     9.6     77    11.0    11.4     96 
 Shell Creek              9580   15.9    13.5    118    12.7    12.4    102 
 Timber Creek             7950    5.0     4.2    119     8.1     6.5    125 
                                                -----                  -----
                Basin Index (%)                  112                    112 
 

SHOSHONE RIVER

 Blackwater               9780   36.0    21.2    170    39.8    18.8    212 
 Evening Star             9200   36.7    23.3    158    43.0    25.2    171 
 Marquette                8760    8.0      -M       *   12.5      -M       *
 Sylvan Road              7120   11.3    10.8    105    29.6    15.5    191 
 Younts Peak              8350   25.0    13.7    182    30.1    14.6    206 
                                                -----                  -----
                Basin Index (%)                  158                    192 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.4     5.2     85     6.9     7.5     92 
 Cloud Peak Reservoir     9860   13.0    13.4     97    14.2    11.8    120 
 Grave Springs            8550    6.3     8.4     75     6.7     9.3     72 
 Hansen Sawmill           8360    8.2     6.0    137    10.8     7.6    142 
 Middle Powder            7760    6.3    10.5     60     6.2    10.5     59 
 Powder River Pass        9480    7.4     9.6     77    11.0    11.4     96 
 Soldier Park             8720   12.0      -M       *   10.7      -M       *
                                                -----                  -----
                Basin Index (%)                   86                     96 
 

TONGUE RIVER

 Big Goose                7990    9.6     8.2    117    11.0     9.6    115 
 Bone Springs Div         9350   17.3    14.5    119    15.9    14.0    114 
 Burgess Junction         7880    9.3    10.3     90    10.2    10.9     94 
 Dome Lake                8880   13.8    10.8    128    13.7    12.0    114 
 Little Goose             8870   10.5      -M       *   13.7      -M       *
 Sucker Creek             8880   11.0    11.1     99    10.9    12.7     86 
 Tie Creek                6870    3.0     5.3     57    11.2    10.1    111 
                                                -----                  -----
                Basin Index (%)                  106                    105 
 

BELLE FOURCHE

 Cole Canyon              5910     .0     5.7      0     6.9     8.2     84 
                                                -----                  -----
                Basin Index (%)                    0                     84 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .1     7.1      1     7.9    10.7     74 
 North Rapid Creek        6130    1.8     6.7     27     6.7     8.9     75 
                                                -----                  -----
                Basin Index (%)                   14                     74 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   22.8    18.7    122    24.0    20.3    118 
 Blackhall Mtn            9820   34.3      -M       *   35.5      -M       *
 Columbine                9160   20.1    22.0     91    26.1    23.7    110 
 Divide Peak              8880   14.9    18.5     81    21.1    19.7    107 
 Joe Wright              10120   17.0    19.6     87    26.2    23.7    111 
 Laprele Creek            8375    9.7     9.4    103    10.7    11.2     96 
 Med Bow                 10500   36.7      -M       *   33.0      -M       *
 North French Creek      10130   23.0    26.8     86    25.5    24.6    104 
 Never Summer            10280   21.0    18.6    113    17.7      -M       *
 Old Battle              10000   35.4    27.8    127    36.5    32.4    113 
 Rawah                    9020    9.1     9.9     92    15.6    12.8    122 
 Sage Creek Basin         7850    7.7    12.0     64    15.2    13.3    114 
 Sand Lake               10050   28.6    25.9    110    25.6    22.5    114 
 South Brush Creek        8440    5.9    11.7     50    11.7    13.9     84 
 Tower                   10500   39.2    41.6     94    41.8    36.8    114 
 Webber Springs           9250   25.5    22.0    116    31.7    24.6    129 
 Willow Creek Pass        9540   16.6    11.3    147    17.4    12.1    144 
 Zirkel                   9340   33.9    25.7    132    40.3    26.2    154 
                                                -----                  -----
                Basin Index (%)                  103                    116 
 

SWEETWATER

 Deer Park                9700   28.8    14.1    204    33.8    17.7    191 
 Larsen Creek             9000   16.7    11.7    143    22.0      -M       *
 South Pass               9040   27.2    14.4    189    24.5    15.9    154 
                                                -----                  -----
                Basin Index (%)                  181                    174 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.2    12.8     72    10.5    13.3     79 
 Laprele Creek            8375    9.7     9.4    103    10.7    11.2     96 
 Reno Hill                8400   10.7    12.5     86    12.1    13.7     88 
 Windy Peak               7900    7.7     7.6    101    10.3     9.5    108 
                                                -----                  -----
                Basin Index (%)                   88                     91 
 

LARAMIE RIVER

 Brooklyn Lake           10240   22.7    18.5    123    21.8    19.2    114 
 Cinnabar Park            9574   16.8    19.4     87    21.0    22.2     95 
 Crow Creek               8330     .6     6.9      9     8.3     9.7     86 
 Deadman Hill            10220   19.5    14.6    134    18.7    15.6    120 
 Rawah                    9020    9.1     9.9     92    15.6    12.8    122 
 Roach                    9700   15.1    14.5    104    18.9    17.5    108 
                                                -----                  -----
                Basin Index (%)                  100                    108 
 

S. PLATTE

 Black Mountain           8920    9.2      -M       *   10.9      -M       *
 Crow Creek               8330     .6     6.9      9     8.3     9.7     86 
 Deadman Hill            10220   19.5    14.6    134    18.7    15.6    120 
                                                -----                  -----
                Basin Index (%)                   93                    107 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.7    11.1     33    15.7    14.0    112 
 Divide Peak              8880   14.9    18.5     81    21.1    19.7    107 
 Elk River                8700   13.4    17.7     76    19.2    18.5    104 
 Little Snake River       8915   26.0    21.7    120    37.1    27.3    136 
 Old Battle              10000   35.4    27.8    127    36.5    32.4    113 
 Sage Creek Basin         7850    7.7    12.0     64    15.2    13.3    114 
 Sandstone RS             8150    8.5    12.9     66    15.2    17.1     89 
 Whiskey Park             8950   25.0    24.7    101    28.7    25.8    111 
                                                -----                  -----
                Basin Index (%)                   92                    112 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   20.3    12.0    169    22.5    12.2    184 
 Blind Bull Sum           8650   41.8    21.2    197      -M    18.2       *
 East Rim Divide          7930   17.6     9.7    181    20.5    11.0    186 
 Elkhart Park G.S.        9400   18.7    11.4    164    23.5    12.3    191 
 Gros Ventre Summit       8750   19.0    12.1    157    23.2    11.9    195 
 Gunsight Pass            9820   20.7    12.7    163    23.1    12.6    183 
 Kendall R.S.             7740   21.3    11.3    188    28.3    13.4    211 
 Loomis Park              8240   26.7    14.1    189    31.4    16.1    195 
 New Fork Lake            8340   16.3     9.8    166    17.1    10.1    169 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.4    11.4    161    26.0    13.1    198 
 Spring Creek Divide      9000   38.3    22.1    173    38.2    22.2    172 
 Triple Peak              8500   35.2    20.4    173    39.0    23.5    166 
                                                -----                  -----
                Basin Index (%)                  175                    185 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    7.8      -M       *   14.2      -M       *
 Buck Pasture             9632   16.3      -M       *   21.6      -M       *
 EF Blacks Fork GS        9360   13.7      -M       *   15.2      -M       *
 Hams Fork                7840   13.9    10.6    131    19.6    10.5    187 
 Hewinta                  9500    6.7    10.0     67    14.9    12.8    116 
 Hickerson Park           9122    6.5     6.9     94     9.8     9.2    107 
 Hole-in-Rock             9168    4.7     6.9     68    10.3     8.6    120 
 Indian Creek             9425   38.5    22.4    172      -M    20.9       *
 Kelley R.S.              8180   24.5    14.2    173    29.3    16.8    174 
 Spirit Lk               10235   14.0      -M       *   16.5      -M       *
 Steel Creek Park        10158   16.3    14.0    116    18.4    14.8    124 
                                                -----                  -----
                Basin Index (%)                  131                    141 
 

UPPER BEAR RIVER

 Bear River RS            8777    8.0      -M       *   16.2      -M       *
 Bug Lake                 7987   30.1    17.4    173    31.7    17.9    177 
 Burts Miller Ranch       8000    2.1      -M       *    8.6      -M       *
 Chalk Creek #1           9171   30.4    22.3    136    32.9    23.1    142 
 Hayden Fork              9130   17.9    14.6    123    27.6    19.3    143 
 Kelley R.S.              8180   24.5    14.2    173    29.3    16.8    174 
 Lily Lake                9133   11.7    11.7    100    17.8    15.6    114 
 Monte Cristo             8932   33.8    25.2    134    36.6    24.0    152 
 Salt River Summit        7760   19.7    12.4    159      -M    15.5       *
                                                -----                  -----
                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.