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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 12:27a, 8/21/18
Temperature 52.7°F
Wind 2.0 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 MONDAY: MARCH 23 , 2015
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 Base Camp                7030   14.3    14.6     98    16.2    19.2     84
 Black Bear               8170   24.0    33.1     73    23.9    34.9     68
 Blind Bull Sum           8650   22.6    20.8    109    15.1    17.9     84
 Cottonwood Creek         7670     -M    20.3       *     -M    22.3       *
 East Rim Divide          7930   10.5     9.6    109    10.2    10.7     95
 Grand Targhee            9260   32.0    33.4     96    26.6    27.4     97
 Granite Creek            6770   14.3    14.7     97    15.7    18.3     86
 Grassy Lake              7265   23.5    29.7     79    25.5    33.1     77
 Gros Ventre Summit       8750    9.3    11.8     79     9.1    11.6     78
 Gunsight Pass            9820   11.9    12.3     97    11.5    12.2     94
 Lewis Lake Divide        7850   20.7    28.2     73    23.8    32.5     73
 Phillips Bench           8200   20.7    22.8     91    22.1    25.6     86
 Salt River Summit        7760    9.5    12.2     78    12.1    15.2     80
 Snake River Station      6920   12.6    15.5     81    16.6    20.6     81
 Spring Creek Divide      9000   22.8    21.6    106    22.0    21.8    101
 Thumb Divide             7980    8.5    14.4     59    10.5    16.7     63
 Togwotee Pass            9580   20.8    20.9    100    22.4    22.0    102
 Two Ocean Plateau        9240   23.1    24.4     95    20.7    24.8     83
 Willow Creek             8380   19.7    25.3     78    25.0    30.4     82
 Younts Peak              8350     -M    13.6       *     -M    14.3       *
                                                -----                  -----
                Basin Index (%)                   88                     83


MADISON-GALLATIN

 Black Bear               8170   24.0    33.1     73    23.9    34.9     68
 Canyon                   7870    9.7    11.8     82    10.8    14.7     73
 Madison Plateau          7750   13.1    20.4     64    14.2    23.9     59
 West Yellowstone         6700    5.6    10.0     56     8.8    12.8     69
 Whiskey Creek            6800    8.5    14.4     59    11.0    18.4     60
                                                -----                  -----
                Basin Index (%)                   68                     66


YELLOWSTONE

 Beartooth Lake           9360   18.6    19.8     94    18.0    18.0    100
 Burnt Mtn                5880     .0     4.7      0    11.0    11.0    100
 Canyon                   7870    9.7    11.8     82    10.8    14.7     73
 Cole Creek               7850   11.6    12.3     94    11.2    11.0    102
 Evening Star             9200   23.2    22.7    102    24.4    24.8     98
 Fisher Creek             9100   28.6    28.4    101    26.2    29.0     90
 Northeast Entrance       7350    6.9     9.3     74    12.4    11.1    112
 Parker Peak              9400   19.8    17.9    111    18.9    15.9    119
 Sylvan Lake              8420   13.9    18.4     76    17.0    20.2     84
 Thumb Divide             7980    8.5    14.4     59    10.5    16.7     63
 Two Ocean Plateau        9240   23.1    24.4     95    20.7    24.8     83
 White Mill               8700   21.1    20.4    103    21.6    21.5    100
 Wolverine                7650    9.8     8.9    110    12.0    11.1    108
                                                -----                  -----
                Basin Index (%)                   91                     93


WIND RIVER

 Burroughs Creek          8750   11.8      -M       *   15.0      -M       *
 Castle Creek             8400    7.8      -M       *    8.3      -M       *
 Cold Springs             9630    5.7     6.6     86     7.1     8.7     82
 Deer Park                9700    9.1    13.9     65    12.4    17.4     71
 Hobbs Park              10100    8.0    12.2     66     8.7    11.3     77
 Kirwin                   9550    9.6     8.5    113    11.0    10.2    108
 Little Warm              9370    8.8     9.4     94    10.3    11.3     91
 Owl Creek                8975    4.4     4.7     94     6.2     5.1    122
 South Pass               9040    9.2    14.3     64    10.2    15.5     66
 St. Lawrence Alt         8620    3.0     6.4     47     5.7     7.7     74
 Togwotee Pass            9580   20.8    20.9    100    22.4    22.0    102
 Townsend Creek           8700    5.5     8.5     65     8.3    10.2     81
                                                -----                  -----
                Basin Index (%)                   80                     86


BIGHORN BASIN

 Bald Mtn.                9380   14.9    16.6     90    11.4    15.1     75
 Bear Trap Meadow         8200    6.6     5.2    127     7.2     7.3     99
 Bone Springs Div         9350   13.3    14.2     94    11.5    13.6     85
 Grave Springs            8550    7.7     8.3     93     6.6     9.2     72
 Kirwin                   9550    9.6     8.5    113    11.0    10.2    108
 Marquette                8760    4.8      -M       *    7.1      -M       *
 Middle Powder            7760    9.3    10.2     91     8.8    10.3     85
 Owl Creek                8975    4.4     4.7     94     6.2     5.1    122
 Powder River Pass        9480    9.8     9.4    104    11.3    11.1    102
 Shell Creek              9580   11.3    13.1     86    10.8    12.1     89
 Timber Creek             7950    4.4     4.1    107     7.3     6.3    116
                                                -----                  -----
                Basin Index (%)                   97                     92


SHOSHONE RIVER

 Blackwater               9780   17.8    21.0     85    18.4    18.4    100
 Evening Star             9200   23.2    22.7    102    24.4    24.8     98
 Marquette                8760    4.8      -M       *    7.1      -M       *
 Sylvan Road              7120    7.2    10.6     68    13.8    15.3     90
 Younts Peak              8350     -M    13.6       *     -M    14.3       *
                                                -----                  -----
                Basin Index (%)                   89                     97


POWDER RIVER

 Bear Trap Meadow         8200    6.6     5.2    127     7.2     7.3     99
 Cloud Peak Reservoir     9860   12.0    13.2     91    11.2    11.5     97
 Grave Springs            8550    7.7     8.3     93     6.6     9.2     72
 Hansen Sawmill           8360    6.1     5.8    105     7.5     7.4    101
 Middle Powder            7760    9.3    10.2     91     8.8    10.3     85
 Powder River Pass        9480    9.8     9.4    104    11.3    11.1    102
 Soldier Park             8720    4.1      -M       *    6.9      -M       *
                                                -----                  -----
                Basin Index (%)                   99                     93


TONGUE RIVER

 Big Goose                7990    7.1     8.0     89     8.2     9.4     87
 Bone Springs Div         9350   13.3    14.2     94    11.5    13.6     85
 Burgess Junction         7880    9.6     9.8     98     9.5    10.7     89
 Dome Lake                8880    9.6    10.5     91     9.1    11.7     78
 Little Goose             8870    7.5      -M       *    9.9      -M       *
 Sucker Creek             8880   10.2    11.0     93    10.8    12.5     86
 Tie Creek                6870    2.3     5.1     45     9.2     9.9     93
                                                -----                  -----
                Basin Index (%)                   89                     86


BELLE FOURCHE

 Cole Canyon              5910     .0     5.6      0     6.9     8.0     86
                                                -----                  -----
                Basin Index (%)                    0                     86


CHEYENNE RIVER BASIN

 Blind Park               6890    1.0     7.1     14     7.7    10.6     73
 North Rapid Creek        6130    3.8     6.6     58     8.3     8.7     95
                                                -----                  -----
                Basin Index (%)                   35                     83


UPPER N. PLATTE

 Arapaho Ridge           10960   16.2    18.2     89    16.9    19.9     85
 Blackhall Mtn            9820   20.8      -M       *   23.4      -M       *
 Columbine                9160   16.5    22.1     75    19.8    23.3     85
 Divide Peak              8880    6.6    18.0     37    11.9    19.4     61
 Joe Wright              10120   15.6    19.3     81    22.8    23.2     98
 Laprele Creek            8375    6.7     9.3     72     7.6    11.0     69
 Med Bow                 10500   26.7      -M       *   24.3      -M       *
 North French Creek      10130   19.8    26.1     76    20.3    24.0     85
 Never Summer            10280   14.8    18.2     81    14.3      -M       *
 Old Battle              10000   20.1    27.1     74    21.0    31.9     66
 Rawah                    9020    7.8     9.7     80    13.3    12.4    107
 Sage Creek Basin         7850    5.3    11.6     46     7.0    13.0     54
 Sand Lake               10050   19.7    25.3     78    18.5    22.0     84
 South Brush Creek        8440    6.3    11.3     56     9.2    13.6     68
 Tower                   10500     -M    40.7       *     -M    36.2       *
 Webber Springs           9250   15.4    21.5     72    17.2    24.2     71
 Willow Creek Pass        9540    8.9    11.1     80    11.0    11.9     92
 Zirkel                   9340   22.1    25.5     87    26.0    25.6    102
                                                -----                  -----
                Basin Index (%)                   74                     81


SWEETWATER

 Deer Park                9700    9.1    13.9     65    12.4    17.4     71
 Larsen Creek             9000    5.6    11.4     49     9.0      -M       *
 South Pass               9040    9.2    14.3     64    10.2    15.5     66
                                                -----                  -----
                Basin Index (%)                   60                     69


LOWER N. PLATTE

 Casper Mtn.              7900    7.8    12.6     62     8.6    13.0     66
 Laprele Creek            8375    6.7     9.3     72     7.6    11.0     69
 Reno Hill                8400    9.3    12.3     76    10.8    13.2     82
 Windy Peak               7900    5.3     7.4     72     6.4     9.2     70
                                                -----                  -----
                Basin Index (%)                   70                     72


LARAMIE RIVER

 Brooklyn Lake           10240   17.3    18.0     96    18.4    18.8     98
 Cinnabar Park            9574   13.8    18.7     74    18.7    21.6     87
 Crow Creek               8330    3.9     6.9     57     7.9     9.1     87
 Deadman Hill            10220   14.3    14.2    101    14.3    15.2     94
 Rawah                    9020    7.8     9.7     80    13.3    12.4    107
 Roach                    9700   10.3    14.3     72    13.4    17.1     78
                                                -----                  -----
                Basin Index (%)                   82                     91


S. PLATTE

 Black Mountain           8920    8.3      -M       *   10.3      -M       *
 Crow Creek               8330    3.9     6.9     57     7.9     9.1     87
 Deadman Hill            10220   14.3    14.2    101    14.3    15.2     94
                                                -----                  -----
                Basin Index (%)                   86                     91


LITTLE SNAKE RIVER

 Battle Mountain          7440    4.5    11.3     40     9.3    13.7     68
 Divide Peak              8880    6.6    18.0     37    11.9    19.4     61
 Elk River                8700   11.6    17.5     66    13.8    18.2     76
 Little Snake River       8915   17.5    21.4     82    23.3    26.8     87
 Old Battle              10000   20.1    27.1     74    21.0    31.9     66
 Sage Creek Basin         7850    5.3    11.6     46     7.0    13.0     54
 Sandstone RS             8150    5.4    12.7     43     8.6    16.9     51
 Whiskey Park             8950   20.6    24.5     84    22.4    25.3     89
                                                -----                  -----
                Basin Index (%)                   64                     71


UPPER GREEN RIVER

 Big Sandy Opening        9080    9.5    11.9     80     8.8    12.0     73
 Blind Bull Sum           8650   22.6    20.8    109    15.1    17.9     84
 East Rim Divide          7930   10.5     9.6    109    10.2    10.7     95
 Elkhart Park G.S.        9400    9.5    11.0     86    10.3    12.0     86
 Gros Ventre Summit       8750    9.3    11.8     79     9.1    11.6     78
 Gunsight Pass            9820   11.9    12.3     97    11.5    12.2     94
 Kendall R.S.             7740   10.5    11.4     92    10.7    13.0     82
 Loomis Park              8240   13.1    13.7     96    14.7    15.7     94
 New Fork Lake            8340    9.6     9.5    101     9.7     9.8     99
 Pocket Creek             9360    6.9      -M       *     -M      -M       *
 Snider Basin             8060   11.8    11.2    105    13.5    12.9    105
 Spring Creek Divide      9000   22.8    21.6    106    22.0    21.8    101
 Triple Peak              8500   21.8    20.0    109    23.3    23.1    101
                                                -----                  -----
                Basin Index (%)                   99                     92


LOWER GREEN RIVER

 Blacks Fork Jct          8870    5.5      -M       *    8.3      -M       *
 Buck Pasture             9700    8.9      -M       *   11.7      -M       *
 EF Blacks Fork GS        9360    5.4      -M       *    7.9      -M       *
 Hams Fork                7840    7.4    10.5     70     8.3    10.3     81
 Hewinta                  9519    5.4     9.9     55     9.2    12.6     73
 Hickerson Park           9145    3.5     6.8     51     6.0     9.1     66
 Hole-in-Rock             9150    4.9     6.8     72     6.2     8.5     73
 Indian Creek             9425   16.8    21.8     77    16.6    20.5     81
 Kelley R.S.              8180   11.2    13.8     81    12.5    16.5     76
 Spirit Lk               10235    5.8      -M       *    9.3      -M       *
 Steel Creek Park        10200    9.8    13.7     72    10.9    14.6     75
                                                -----                  -----
                Basin Index (%)                   71                     76


UPPER BEAR RIVER

 Bear River RS            8777    2.2      -M       *    7.0      -M       *
 Bug Lake                 7950   10.5    17.0     62    11.2    17.7     63
 Burts Miller Ranch       8000     .0      -M       *    3.9      -M       *
 Chalk Creek #1           8993   12.3    21.9     56    14.2    22.6     63
 Hayden Fork              9212    2.4    14.5     17    13.0    18.9     69
 Kelley R.S.              8180   11.2    13.8     81    12.5    16.5     76
 Lily Lake                9156    7.1    11.5     62     8.5    15.3     56
 Monte Cristo             8960   15.3    24.9     61    16.0    23.5     68
 Salt River Summit        7760    9.5    12.2     78    12.1    15.2     80
                                                -----                  -----
                Basin Index (%)                   59                     67

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


 -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.