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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 6:18p, 5/21/18
Temperature 63.1°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 FRIDAY: MARCH 25 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   15.7    14.6    108    19.1    19.4     98 
 Black Bear               8170   30.4    33.9     90    32.2    35.3     91 
 Blind Bull Sum           8650   24.2    21.1    115    15.2    18.1     84 
 Cottonwood Creek         7670   20.8    20.5    101    24.3    22.7    107 
 East Rim Divide          7930   10.7     9.7    110    10.4    10.9     95 
 Grand Targhee            9260   37.5    33.9    111    28.5    27.7    103 
 Granite Creek            6770   14.3    14.8     97    16.5    18.5     89 
 Grassy Lake              7265   29.6    30.3     98    34.0    33.4    102 
 Gros Ventre Summit       8750   10.6    12.0     88    10.0    11.8     85 
 Gunsight Pass            9820   12.9    12.5    103    13.6    12.5    109 
 Lewis Lake Divide        7850   29.3    28.6    102    31.1    32.9     95 
 Phillips Bench           8200   21.5    23.1     93    24.7    25.9     95 
 Salt River Summit        7760   12.7    12.3    103    14.4    15.4     94 
 Snake River Station      6920   16.8    15.6    108    22.5    20.9    108 
 Spring Creek Divide      9000   23.9    21.9    109    22.0    22.0    100 
 Thumb Divide             7980   13.6    14.8     92    14.4    16.9     85 
 Togwotee Pass            9580   20.1    21.1     95    23.0    22.3    103 
 Two Ocean Plateau        9240   25.1    24.6    102    23.5    25.1     94 
 Willow Creek             8380   26.8    25.5    105    30.4    30.7     99 
 Younts Peak              8350   13.4    13.7     98    12.2    14.5     84 
                                                -----                  -----
                Basin Index (%)                  101                     97 
 

MADISON-GALLATIN

 Black Bear               8170   30.4    33.9     90    32.2    35.3     91 
 Canyon                   7870   10.3    12.0     86    12.6    14.9     85 
 Madison Plateau          7750   20.4    20.6     99    21.2    24.2     88 
 West Yellowstone         6700   10.2    10.0    102    12.5    12.9     97 
 Whiskey Creek            6800   12.8    14.4     89    15.3    18.6     82 
                                                -----                  -----
                Basin Index (%)                   93                     89 
 

YELLOWSTONE

 Beartooth Lake           9360   16.1    20.1     80    16.6    18.1     92 
 Burnt Mtn                5880     .4     4.8      8     8.3    11.2     74 
 Canyon                   7870   10.3    12.0     86    12.6    14.9     85 
 Cole Creek               7850    6.4    12.5     51      -M    11.2       *
 Evening Star             9200   24.0    23.1    104    26.5    25.0    106 
 Fisher Creek             9100   27.3    28.6     95    24.3    29.3     83 
 Northeast Entrance       7350    7.1     9.5     75    11.0    11.2     98 
 Parker Peak              9400   18.6    18.0    103    19.2    16.1    119 
 Sylvan Lake              8420   16.6    18.6     89    21.6    20.4    106 
 Thumb Divide             7980   13.6    14.8     92    14.4    16.9     85 
 Two Ocean Plateau        9240   25.1    24.6    102    23.5    25.1     94 
 White Mill               8700   21.8    20.8    105    20.4    21.8     94 
 Wolverine                7650    8.5     8.9     96    11.1    11.2     99 
                                                -----                  -----
                Basin Index (%)                   91                     95 
 

WIND RIVER

 Burroughs Creek          8750   10.0      -M       *   11.7      -M       *
 Castle Creek             8400    4.1      -M       *    5.7      -M       *
 Cold Springs             9630    6.5     6.7     97     6.9     8.8     78 
 Deer Park                9700   13.2    14.1     94    13.7    17.6     78 
 Hobbs Park              10100   11.5    12.5     92    10.6    11.5     92 
 Kirwin                   9550    8.5     8.7     98     9.9    10.3     96 
 Little Warm              9370    8.1     9.7     84     9.8    11.5     85 
 Owl Creek                8975    3.5     4.7     74     4.1     5.2     79 
 South Pass               9040   11.7    14.4     81     9.5    15.8     60 
 St. Lawrence Alt         8620    3.9     6.4     61     6.0     7.8     77 
 Togwotee Pass            9580   20.1    21.1     95    23.0    22.3    103 
 Townsend Creek           8700    7.4     8.6     86     8.5    10.4     82 
                                                -----                  -----
                Basin Index (%)                   88                     84 
 

BIGHORN BASIN

 Bald Mtn.                9380   12.4    16.8     74    10.1    15.3     66 
 Bear Trap Meadow         8200    5.8     5.2    112     5.2     7.4     70 
 Bone Springs Div         9350   11.0    14.3     77     9.2    13.8     67 
 Grave Springs            8550    5.5     8.3     66     4.3     9.3     46 
 Kirwin                   9550    8.5     8.7     98     9.9    10.3     96 
 Marquette                8760    4.0      -M       *    7.8      -M       *
 Middle Powder            7760    7.6    10.4     73      -M    10.4       *
 Owl Creek                8975    3.5     4.7     74     4.1     5.2     79 
 Powder River Pass        9480    7.4     9.5     78     7.0    11.3     62 
 Shell Creek              9580   10.1    13.3     76     8.4    12.3     68 
 Timber Creek             7950    3.6     4.2     86     7.8     6.4    122 
                                                -----                  -----
                Basin Index (%)                   79                     72 
 

SHOSHONE RIVER

 Blackwater               9780   20.2    21.1     96    22.5    18.6    121 
 Evening Star             9200   24.0    23.1    104    26.5    25.0    106 
 Marquette                8760    4.0      -M       *    7.8      -M       *
 Sylvan Road              7120    8.2    10.7     77    14.6    15.5     94 
 Younts Peak              8350   13.4    13.7     98    12.2    14.5     84 
                                                -----                  -----
                Basin Index (%)                   96                    103 
 

POWDER RIVER

 Bear Trap Meadow         8200    5.8     5.2    112     5.2     7.4     70 
 Cloud Peak Reservoir     9860    9.0    13.4     67     9.5    11.7     81 
 Grave Springs            8550    5.5     8.3     66     4.3     9.3     46 
 Hansen Sawmill           8360    5.1     6.0     85     5.7     7.5     76 
 Middle Powder            7760    7.6    10.4     73      -M    10.4       *
 Powder River Pass        9480    7.4     9.5     78     7.0    11.3     62 
 Soldier Park             8720    3.2      -M       *    5.5      -M       *
                                                -----                  -----
                Basin Index (%)                   77                     67 
 

TONGUE RIVER

 Big Goose                7990    5.3     8.1     65     5.9     9.6     61 
 Bone Springs Div         9350   11.0    14.3     77     9.2    13.8     67 
 Burgess Junction         7880    6.2    10.1     61     6.8    10.8     63 
 Dome Lake                8880    6.9    10.7     64     6.9    12.0     58 
 Little Goose             8870    6.3      -M       *    7.7      -M       *
 Sucker Creek             8880    7.5    11.1     68     7.6    12.7     60 
 Tie Creek                6870     .4     5.2      8     5.6    10.0     56 
                                                -----                  -----
                Basin Index (%)                   63                     61 
 

BELLE FOURCHE

 Cole Canyon              5910    3.0     5.7     53     8.0     8.2     98 
                                                -----                  -----
                Basin Index (%)                   53                     98 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.7     7.0     53     8.7    10.7     81 
 North Rapid Creek        6130    4.4     6.7     66     7.0     8.8     80 
                                                -----                  -----
                Basin Index (%)                   59                     81 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   23.0    18.5    124    23.0    20.2    114 
 Blackhall Mtn            9820   28.4      -M       *   26.9      -M       *
 Columbine                9160   23.8    22.0    108    24.5    23.5    104 
 Divide Peak              8880   18.3    18.3    100    20.5    19.6    105 
 Joe Wright              10120   15.8    19.4     81    23.3    23.5     99 
 Laprele Creek            8375    8.4     9.4     89     9.1    11.2     81 
 Med Bow                 10500   31.7      -M       *   28.0      -M       *
 North French Creek      10130   24.0    26.6     90    22.8    24.5     93 
 Never Summer            10280   18.7    18.5    101    16.1      -M       *
 Old Battle              10000   26.8    27.6     97    25.0    32.2     78 
 Rawah                    9020   13.0     9.8    133    16.9    12.7    133 
 Sage Creek Basin         7850   14.9    11.9    125    11.6    13.2     88 
 Sand Lake               10050   24.1    25.7     94    22.9    22.4    102 
 South Brush Creek        8440   11.5    11.6     99    11.9    13.8     86 
 Tower                   10500   35.9    41.3     87    33.9    36.7     92 
 Webber Springs           9250   20.7    21.8     95    22.9    24.5     93 
 Willow Creek Pass        9540   15.2    11.2    136    15.2    12.0    127 
 Zirkel                   9340   26.8    25.6    105    28.6    26.1    110 
                                                -----                  -----
                Basin Index (%)                  101                     99 
 

SWEETWATER

 Deer Park                9700   13.2    14.1     94    13.7    17.6     78 
 Larsen Creek             9000    8.2    11.6     71    11.0      -M       *
 South Pass               9040   11.7    14.4     81     9.5    15.8     60 
                                                -----                  -----
                Basin Index (%)                   83                     69 
 

LOWER N. PLATTE

 Casper Mtn.              7900   12.0    12.7     94    11.5    13.3     86 
 Laprele Creek            8375    8.4     9.4     89     9.1    11.2     81 
 Reno Hill                8400   12.4    12.4    100    14.6    13.6    107 
 Windy Peak               7900    7.8     7.5    104     8.9     9.4     95 
                                                -----                  -----
                Basin Index (%)                   97                     93 
 

LARAMIE RIVER

 Brooklyn Lake           10240   22.4    18.3    122    21.0    19.1    110 
 Cinnabar Park            9574   18.7    19.2     97    20.6    22.0     94 
 Crow Creek               8330    8.7     6.9    126    12.9     9.6    134 
 Deadman Hill            10220   18.6    14.4    129    17.7    15.5    114 
 Rawah                    9020   13.0     9.8    133    16.9    12.7    133 
 Roach                    9700   16.5    14.4    115    18.0    17.4    103 
                                                -----                  -----
                Basin Index (%)                  118                    111 
 

S. PLATTE

 Black Mountain           8920   12.7      -M       *   15.3      -M       *
 Crow Creek               8330    8.7     6.9    126    12.9     9.6    134 
 Deadman Hill            10220   18.6    14.4    129    17.7    15.5    114 
                                                -----                  -----
                Basin Index (%)                  128                    122 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440   12.4    11.2    111    14.2    13.9    102 
 Divide Peak              8880   18.3    18.3    100    20.5    19.6    105 
 Elk River                8700   17.5    17.6     99    17.4    18.4     95 
 Little Snake River       8915   22.7    21.6    105    29.0    27.1    107 
 Old Battle              10000   26.8    27.6     97    25.0    32.2     78 
 Sage Creek Basin         7850   14.9    11.9    125    11.6    13.2     88 
 Sandstone RS             8150   10.5    12.9     81    10.7    17.1     63 
 Whiskey Park             8950   25.7    24.6    104    25.4    25.7     99 
                                                -----                  -----
                Basin Index (%)                  102                     92 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   10.1    11.9     85    10.4    12.1     86 
 Blind Bull Sum           8650   24.2    21.1    115    15.2    18.1     84 
 East Rim Divide          7930   10.7     9.7    110    10.4    10.9     95 
 Elkhart Park G.S.        9400    8.4    11.2     75    10.3    12.2     84 
 Gros Ventre Summit       8750   10.6    12.0     88    10.0    11.8     85 
 Gunsight Pass            9820   12.9    12.5    103    13.6    12.5    109 
 Kendall R.S.             7740    9.9    11.4     87    11.3    13.2     86 
 Loomis Park              8240   13.8    14.0     99    15.6    16.0     98 
 New Fork Lake            8340    9.0     9.7     93    10.6    10.0    106 
 Pocket Creek             9360    7.1      -M       *    8.4      -M       *
 Snider Basin             8060   11.8    11.3    104    12.0    13.1     92 
 Spring Creek Divide      9000   23.9    21.9    109    22.0    22.0    100 
 Triple Peak              8500   23.9    20.3    118    24.7    23.4    106 
                                                -----                  -----
                Basin Index (%)                  101                     95 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870   11.0      -M       *   11.1      -M       *
 Buck Pasture             9700   12.9      -M       *   15.7      -M       *
 EF Blacks Fork GS        9360    9.2      -M       *    9.1      -M       *
 Hams Fork                7840     -M    10.5       *     -M    10.5       *
 Hewinta                  9519   11.0     9.9    111    12.5    12.7     98 
 Hickerson Park           9145    9.8     6.9    142    10.1     9.2    110 
 Hole-in-Rock             9150    9.3     6.9    135    10.6     8.6    123 
 Indian Creek             9425   20.6    22.2     93    15.9    20.7     77 
 Kelley R.S.              8180   13.1    14.1     93    14.4    16.7     86 
 Spirit Lk               10235   12.1      -M       *   14.0      -M       *
 Steel Creek Park        10200   14.9    13.8    108    16.8    14.7    114 
                                                -----                  -----
                Basin Index (%)                  107                     97 
 

UPPER BEAR RIVER

 Bear River RS            8777    7.7      -M       *   11.2      -M       *
 Bug Lake                 7950   17.3    17.3    100    17.5    17.8     98 
 Burts Miller Ranch       8000    4.8      -M       *    5.6      -M       *
 Chalk Creek #1           8993   18.8    22.1     85    20.4    22.9     89 
 Hayden Fork              9212   13.4    14.5     92    18.0    19.1     94 
 Kelley R.S.              8180   13.1    14.1     93    14.4    16.7     86 
 Lily Lake                9156   12.4    11.6    107    12.1    15.5     78 
 Monte Cristo             8960   25.7    25.1    102    25.2    23.7    106 
 Salt River Summit        7760   12.7    12.3    103    14.4    15.4     94 
                                                -----                  -----
                Basin Index (%)                   97                     93 

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


 -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.