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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 10:08p, 5/25/18
Temperature 65.8°F
Wind 4.0 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: APRIL 14 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   23.1    13.5    171    40.1    21.2    189 
 Black Bear               8170   45.6    36.5    125    54.8    38.8    141 
 Blind Bull Sum           8650   44.2    23.8    186      -M    19.7       *
 Cottonwood Creek         7670   27.4    20.1    136    39.2    25.1    156 
 East Rim Divide          7930   14.2    10.0    142    21.0    11.9    176 
 Grand Targhee            9260   47.4    40.7    116      -M    31.7       *
 Granite Creek            6770   24.4    12.7    192    36.3    19.8    183 
 Grassy Lake              7265   37.5    31.4    119    55.7    36.5    153 
 Gros Ventre Summit       8750   20.4    12.9    158    24.9    13.2    189 
 Gunsight Pass            9820   23.8    13.5    176    25.7    14.2    181 
 Lewis Lake Divide        7850   46.0    30.2    152    56.1    35.9    156 
 Phillips Bench           8200   37.8    26.0    145    47.2    28.5    166 
 Salt River Summit        7760   19.4    11.5    169      -M    17.0       *
 Snake River Station      6920   16.3    13.2    123    36.1    22.8    158 
 Spring Creek Divide      9000   42.2    23.1    183    41.2    24.2    170 
 Thumb Divide             7980   21.5    14.5    148    28.3    18.9    150 
 Togwotee Pass            9580   33.9    22.9    148    39.4    24.8    159 
 Two Ocean Plateau        9240     -M    27.0       *     -M    27.7       *
 Willow Creek             8380   28.3    26.9    105    50.7    34.3    148 
 Younts Peak              8350   26.0    14.7    177    31.8    16.1    198 
                                                -----                  -----
                Basin Index (%)                  146                    163 
 

MADISON-GALLATIN

 Black Bear               8170   45.6    36.5    125    54.8    38.8    141 
 Canyon                   7870   17.6    12.3    143    26.1    16.5    158 
 Madison Plateau          7750   27.6    22.4    123    36.7    26.7    137 
 West Yellowstone         6700    4.6     8.4     55    23.6    14.3    165 
 Whiskey Creek            6800   13.1    14.7     89    27.4    20.6    133 
                                                -----                  -----
                Basin Index (%)                  115                    144 
 

YELLOWSTONE

 Beartooth Lake           9360   32.8    22.2    148    28.7    20.2    142 
 Burnt Mtn                5880     .0     1.0      0    15.0    13.4    112 
 Canyon                   7870   17.6    12.3    143    26.1    16.5    158 
 Cole Creek               7850   12.2    15.5     79     9.5    13.8     69 
 Evening Star             9200   38.7    24.6    157    45.5    27.9    163 
 Fisher Creek             9100   44.0    31.8    138    48.1    32.4    148 
 Northeast Entrance       7350    6.2     8.2     76    20.9    12.6    166 
 Parker Peak              9400   37.4    20.4    183    35.2    18.1    194 
 Sylvan Lake              8420   24.4    19.9    123    38.0    22.8    167 
 Thumb Divide             7980   21.5    14.5    148    28.3    18.9    150 
 Two Ocean Plateau        9240     -M    27.0       *     -M    27.7       *
 White Mill               8700   37.4    23.4    160    36.9    24.2    152 
 Wolverine                7650    4.3     8.9     48    21.4    12.5    171 
                                                -----                  -----
                Basin Index (%)                  136                    152 
 

WIND RIVER

 Burroughs Creek          8750   22.7      -M       *   28.0      -M       *
 Castle Creek             8400    9.7      -M       *   16.0      -M       *
 Cold Springs             9630   16.9     5.9    286    20.4    10.3    198 
 Deer Park                9700   33.4    16.1    207    38.6    20.6    187 
 Hobbs Park              10100   30.3    14.9    203    29.2    14.1    207 
 Kirwin                   9550     -M     9.9       *   25.9    11.9    218 
 Little Warm              9370   18.9    10.3    183    25.4    13.3    191 
 Owl Creek                8975   10.0     5.3    189    13.5     6.3    214 
 South Pass               9040   32.4    15.8    205    29.1    18.0    162 
 St. Lawrence Alt         8620    9.6     6.6    145    17.6     9.4    187 
 Togwotee Pass            9580   33.9    22.9    148    39.4    24.8    159 
 Townsend Creek           8700   18.2    10.0    182    23.7    12.7    187 
                                                -----                  -----
                Basin Index (%)                  189                    186 
 

BIGHORN BASIN

 Bald Mtn.                9380   20.9    19.4    108    18.1    17.6    103 
 Bear Trap Meadow         8200    5.0     4.5    111     9.7     9.0    108 
 Bone Springs Div         9350   20.8    16.9    123    19.0    16.1    118 
 Grave Springs            8550    7.5     9.6     78     8.8    11.1     79 
 Kirwin                   9550     -M     9.9       *   25.9    11.9    218 
 Marquette                8760   14.5      -M       *   18.2      -M       *
 Middle Powder            7760    8.8    12.4     71     8.7    12.3     71 
 Owl Creek                8975   10.0     5.3    189    13.5     6.3    214 
 Powder River Pass        9480    9.5    10.2     93    14.5    13.1    111 
 Shell Creek              9580   18.6    15.6    119    15.8    14.3    110 
 Timber Creek             7950    7.7     5.2    148    11.9     7.8    153 
                                                -----                  -----
                Basin Index (%)                  110                    122 
 

SHOSHONE RIVER

 Blackwater               9780   38.6    23.6    164    42.9    21.2    202 
 Evening Star             9200   38.7    24.6    157    45.5    27.9    163 
 Marquette                8760   14.5      -M       *   18.2      -M       *
 Sylvan Road              7120     -M    10.3       *   30.7    17.0    181 
 Younts Peak              8350   26.0    14.7    177    31.8    16.1    198 
                                                -----                  -----
                Basin Index (%)                  164                    184 
 

POWDER RIVER

 Bear Trap Meadow         8200    5.0     4.5    111     9.7     9.0    108 
 Cloud Peak Reservoir     9860   17.6    15.4    114    20.3    14.0    145 
 Grave Springs            8550    7.5     9.6     78     8.8    11.1     79 
 Hansen Sawmill           8360   12.1     6.0    202    15.8     9.0    176 
 Middle Powder            7760    8.8    12.4     71     8.7    12.3     71 
 Powder River Pass        9480    9.5    10.2     93    14.5    13.1    111 
 Soldier Park             8720   15.7      -M       *   15.9      -M       *
                                                -----                  -----
                Basin Index (%)                  104                    114 
 

TONGUE RIVER

 Big Goose                7990   12.4     9.8    127    15.2    12.1    126 
 Bone Springs Div         9350   20.8    16.9    123    19.0    16.1    118 
 Burgess Junction         7880   11.2    12.2     92    13.0    12.9    101 
 Dome Lake                8880   17.1    12.0    142    17.7    14.3    124 
 Little Goose             8870   14.8      -M       *   18.8      -M       *
 Sucker Creek             8880   13.8    12.6    110    15.1    15.1    100 
 Tie Creek                6870    2.5     5.0     50    14.5    12.2    119 
                                                -----                  -----
                Basin Index (%)                  114                    114 
 

BELLE FOURCHE

 Cole Canyon              5910     .0     3.5      0     8.0     9.9     81 
                                                -----                  -----
                Basin Index (%)                    0                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .0     5.5      0     9.7    12.4     78 
 North Rapid Creek        6130     .0     5.7      0     8.2    10.3     80 
                                                -----                  -----
                Basin Index (%)                    0                     79 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   24.9    21.6    115    26.4    23.7    111 
 Blackhall Mtn            9820   36.3      -M       *   38.1      -M       *
 Columbine                9160   15.3    22.2     69    27.7    26.2    106 
 Divide Peak              8880   14.8    20.2     73    23.3    22.2    105 
 Joe Wright              10120   17.8    22.0     81    28.8    26.8    107 
 Laprele Creek            8375    8.8     9.2     96    12.9    13.1     98 
 Med Bow                 10500   36.9      -M       *   35.7      -M       *
 North French Creek      10130   25.0    31.5     79    27.9    27.6    101 
 Never Summer            10280   21.8    20.6    106    19.6      -M       *
 Old Battle              10000   36.6    32.2    114    38.9    36.0    108 
 Rawah                    9020    6.9     9.8     70    17.5    15.0    117 
 Sage Creek Basin         7850    2.5     9.4     27    16.8    15.0    112 
 Sand Lake               10050   31.0    30.2    103    28.1    25.8    109 
 South Brush Creek        8440     -M    11.2       *   13.4    15.9     84 
 Tower                   10500   39.3    47.4     83    44.2    41.0    108 
 Webber Springs           9250   26.2    23.5    111    33.8    27.6    122 
 Willow Creek Pass        9540   18.1    12.6    144    18.6    14.0    133 
 Zirkel                   9340     -M    24.3       *   42.6    29.2    146 
                                                -----                  -----
                Basin Index (%)                   93                    112 
 

SWEETWATER

 Deer Park                9700   33.4    16.1    207    38.6    20.6    187 
 Larsen Creek             9000   14.6    10.9    134    23.6      -M       *
 South Pass               9040   32.4    15.8    205    29.1    18.0    162 
                                                -----                  -----
                Basin Index (%)                  188                    175 
 

LOWER N. PLATTE

 Casper Mtn.              7900   11.3    14.5     78    13.7    15.9     86 
 Laprele Creek            8375    8.8     9.2     96    12.9    13.1     98 
 Reno Hill                8400   12.7    14.2     89    15.5    16.4     95 
 Windy Peak               7900    6.7     7.5     89    12.1    11.1    109 
                                                -----                  -----
                Basin Index (%)                   87                     96 
 

LARAMIE RIVER

 Brooklyn Lake           10240   22.4    22.3    100    23.6    21.9    108 
 Cinnabar Park            9574   15.6    21.2     74    22.6    24.9     91 
 Crow Creek               8330     .0     4.8      0     9.3    11.4     82 
 Deadman Hill            10220   21.6    16.6    130    20.8    18.1    115 
 Rawah                    9020    6.9     9.8     70    17.5    15.0    117 
 Roach                    9700   16.2    16.5     98    21.7    19.9    109 
                                                -----                  -----
                Basin Index (%)                   91                    104 
 

S. PLATTE

 Black Mountain           8920    9.8      -M       *   13.3      -M       *
 Crow Creek               8330     .0     4.8      0     9.3    11.4     82 
 Deadman Hill            10220   21.6    16.6    130    20.8    18.1    115 
                                                -----                  -----
                Basin Index (%)                  101                    102 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     -M     7.2       *   17.1    15.5    110 
 Divide Peak              8880   14.8    20.2     73    23.3    22.2    105 
 Elk River                8700   10.0    17.5     57    20.5    20.7     99 
 Little Snake River       8915   24.9    25.9     96    39.2    30.7    128 
 Old Battle              10000   36.6    32.2    114    38.9    36.0    108 
 Sage Creek Basin         7850    2.5     9.4     27    16.8    15.0    112 
 Sandstone RS             8150    3.5    12.1     29    16.4    18.9     87 
 Whiskey Park             8950   24.3    27.2     89    30.6    28.7    107 
                                                -----                  -----
                Basin Index (%)                   81                    108 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   21.1    12.9    164    23.6    13.6    174 
 Blind Bull Sum           8650   44.2    23.8    186      -M    19.7       *
 East Rim Divide          7930   14.2    10.0    142    21.0    11.9    176 
 Elkhart Park G.S.        9400   19.6    12.1    162    24.7    13.6    182 
 Gros Ventre Summit       8750   20.4    12.9    158    24.9    13.2    189 
 Gunsight Pass            9820   23.8    13.5    176    25.7    14.2    181 
 Kendall R.S.             7740   18.3    10.1    181    29.5    14.4    205 
 Loomis Park              8240   25.9    13.7    189    32.7    17.5    187 
 New Fork Lake            8340   14.5     9.7    149    18.2    10.9    167 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   17.8    11.8    151    27.9    14.4    194 
 Spring Creek Divide      9000   42.2    23.1    183    41.2    24.2    170 
 Triple Peak              8500   36.0    20.0    180    41.6    25.6    162 
                                                -----                  -----
                Basin Index (%)                  172                    179 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    7.6      -M       *   16.5      -M       *
 Buck Pasture             9632   17.2      -M       *   24.2      -M       *
 EF Blacks Fork GS        9360   13.8      -M       *   17.9      -M       *
 Hams Fork                7840   12.6     8.9    142    22.0    11.6    190 
 Hewinta                  9500    8.1    10.0     81    17.9    14.5    123 
 Hickerson Park           9122    8.0     6.9    116    13.5    10.7    126 
 Hole-in-Rock             9168    6.7     7.0     96    14.0    10.1    139 
 Indian Creek             9425   41.0    24.1    170    41.8    23.0    182 
 Kelley R.S.              8180   25.3    13.9    182    31.2    18.4    170 
 Spirit Lk               10235   15.9      -M       *   19.2      -M       *
 Steel Creek Park        10158   19.5    16.1    121    21.7    17.2    126 
                                                -----                  -----
                Basin Index (%)                  139                    154 
 

UPPER BEAR RIVER

 Bear River RS            8777    6.7      -M       *   19.1      -M       *
 Bug Lake                 7987   32.7    19.2    170    34.8    19.9    175 
 Burts Miller Ranch       8000     .1      -M       *   10.6      -M       *
 Chalk Creek #1           9171   34.0    24.8    137    37.1    26.0    143 
 Hayden Fork              9130   17.0    14.2    120    30.4    21.7    140 
 Kelley R.S.              8180   25.3    13.9    182    31.2    18.4    170 
 Lily Lake                9133   12.5    12.6     99    20.5    17.7    116 
 Monte Cristo             8932   37.2    27.8    134    40.5    26.7    152 
 Salt River Summit        7760   19.4    11.5    169      -M    17.0       *
                                                -----                  -----
                Basin Index (%)                  144                    149 

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


 -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.