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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 4:38a, 5/25/18
Temperature 49.2°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 FRIDAY: MARCH 17 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   26.4    14.4    183    36.8    18.8    196 
 Black Bear               8170   42.9    32.2    133    48.7    33.9    144 
 Blind Bull Sum           8650   40.4    20.2    200      -M    17.4       *
 Cottonwood Creek         7670   26.6    19.3    138    34.4    21.5    160 
 East Rim Divide          7930   18.4     9.5    194    19.8    10.4    190 
 Grand Targhee            9260   39.9    32.7    122      -M    26.7       *
 Granite Creek            6770   29.7    14.9    199    34.2    17.9    191 
 Grassy Lake              7265   35.9    28.9    124    49.6    32.2    154 
 Gros Ventre Summit       8750   17.3    11.3    153    22.0    11.2    196 
 Gunsight Pass            9820   19.9    11.9    167    22.1    12.0    184 
 Lewis Lake Divide        7850   38.4    27.4    140    50.2    31.6    159 
 Phillips Bench           8200   35.1    22.0    160    43.8    24.9    176 
 Salt River Summit        7760   20.3    11.8    172      -M    14.7       *
 Snake River Station      6920   20.8    15.2    137    32.7    20.1    163 
 Spring Creek Divide      9000   36.6    20.5    179    37.1    21.1    176 
 Thumb Divide             7980   22.0    13.8    159    25.5    16.2    157 
 Togwotee Pass            9580   30.7    20.3    151    34.9    21.4    163 
 Two Ocean Plateau        9240     -M    23.7       *     -M    24.0       *
 Willow Creek             8380   29.9    25.2    119    45.0    29.4    153 
 Younts Peak              8350   27.1    13.1    207    28.9    13.9    208 
                                                -----                  -----
                Basin Index (%)                  153                    168 
 

MADISON-GALLATIN

 Black Bear               8170   42.9    32.2    133    48.7    33.9    144 
 Canyon                   7870   17.3    11.7    148    23.8    14.3    166 
 Madison Plateau          7750   25.4    19.9    128    32.6    23.3    140 
 West Yellowstone         6700   11.6     9.9    117    21.2    12.6    168 
 Whiskey Creek            6800   14.9    13.8    108    24.2    17.9    135 
                                                -----                  -----
                Basin Index (%)                  128                    148 
 

YELLOWSTONE

 Beartooth Lake           9360   29.8    18.8    159    25.2    17.4    145 
 Burnt Mtn                5880    4.6     4.4    105    12.0    10.6    113 
 Canyon                   7870   17.3    11.7    148    23.8    14.3    166 
 Cole Creek               7850    9.4    11.7     80     6.6    10.3     64 
 Evening Star             9200   35.4    21.8    162    41.1    24.0    171 
 Fisher Creek             9100   39.8    28.0    142    42.8    28.1    152 
 Northeast Entrance       7350   11.6     8.8    132    18.5    10.8    171 
 Parker Peak              9400   30.5    17.3    176      -M    15.4       *
 Sylvan Lake              8420   22.5    17.8    126    34.0    19.6    173 
 Thumb Divide             7980   22.0    13.8    159    25.5    16.2    157 
 Two Ocean Plateau        9240     -M    23.7       *     -M    24.0       *
 White Mill               8700   31.7    19.6    162    32.5    20.9    156 
 Wolverine                7650   14.3     8.8    162    19.6    10.8    181 
                                                -----                  -----
                Basin Index (%)                  147                    154 
 

WIND RIVER

 Burroughs Creek          8750   24.8      -M       *   25.3      -M       *
 Castle Creek             8400   12.0      -M       *   14.2      -M       *
 Cold Springs             9630   12.0     6.2    194    14.9     8.3    180 
 Deer Park                9700   27.6    12.6    219    32.1    16.8    191 
 Hobbs Park              10100   22.4    11.4    196    20.4    10.8    189 
 Kirwin                   9550   18.2     8.3    219    20.9     9.7    215 
 Little Warm              9370   15.6     9.1    171    21.3    10.9    195 
 Owl Creek                8975    6.8     4.5    151     8.7     4.8    181 
 South Pass               9040   26.0    13.2    197    23.7    15.0    158 
 St. Lawrence Alt         8620    6.6     5.9    112    12.0     7.3    164 
 Togwotee Pass            9580   30.7    20.3    151    34.9    21.4    163 
 Townsend Creek           8700   12.2     7.9    154    15.9     9.8    162 
                                                -----                  -----
                Basin Index (%)                  179                    178 
 

BIGHORN BASIN

 Bald Mtn.                9380   16.8    16.3    103    14.5    14.5    100 
 Bear Trap Meadow         8200    5.1     4.9    104     6.1     6.8     90 
 Bone Springs Div         9350   15.4    13.8    112    14.6    13.1    111 
 Grave Springs            8550    5.9     7.9     75     6.1     8.7     70 
 Kirwin                   9550   18.2     8.3    219    20.9     9.7    215 
 Marquette                8760    7.3      -M       *   11.6      -M       *
 Middle Powder            7760    6.3     9.3     68     6.2     9.7     64 
 Owl Creek                8975    6.8     4.5    151     8.7     4.8    181 
 Powder River Pass        9480    7.0     8.9     79    10.3    10.6     97 
 Shell Creek              9580   14.3    12.6    113    11.6    11.6    100 
 Timber Creek             7950    5.3     4.2    126     6.9     5.9    117 
                                                -----                  -----
                Basin Index (%)                  111                    111 
 

SHOSHONE RIVER

 Blackwater               9780   34.7    20.2    172    38.5    17.8    216 
 Evening Star             9200   35.4    21.8    162    41.1    24.0    171 
 Marquette                8760    7.3      -M       *   11.6      -M       *
 Sylvan Road              7120   15.1    10.3    147    28.4    14.9    191 
 Younts Peak              8350   27.1    13.1    207    28.9    13.9    208 
                                                -----                  -----
                Basin Index (%)                  172                    194 
 

POWDER RIVER

 Bear Trap Meadow         8200    5.1     4.9    104     6.1     6.8     90 
 Cloud Peak Reservoir     9860   11.7    12.5     94    12.8    10.8    119 
 Grave Springs            8550    5.9     7.9     75     6.1     8.7     70 
 Hansen Sawmill           8360    7.2     5.5    131     9.2     6.9    133 
 Middle Powder            7760    6.3     9.3     68     6.2     9.7     64 
 Powder River Pass        9480    7.0     8.9     79    10.3    10.6     97 
 Soldier Park             8720   11.7      -M       *    9.1      -M       *
                                                -----                  -----
                Basin Index (%)                   88                     95 
 

TONGUE RIVER

 Big Goose                7990    8.2     7.5    109     9.3     8.8    106 
 Bone Springs Div         9350   15.4    13.8    112    14.6    13.1    111 
 Burgess Junction         7880    8.3     9.4     88     9.0    10.1     89 
 Dome Lake                8880   12.4     9.9    125    12.0    11.1    108 
 Little Goose             8870    9.1      -M       *   11.5      -M       *
 Sucker Creek             8880   10.0    10.6     94     9.8    11.8     83 
 Tie Creek                6870    4.3     4.8     90     9.7     9.5    102 
                                                -----                  -----
                Basin Index (%)                  105                    100 
 

BELLE FOURCHE

 Cole Canyon              5910    2.7     5.4     50     6.3     7.8     81 
                                                -----                  -----
                Basin Index (%)                   50                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.0     7.2     56     7.8    10.3     76 
 North Rapid Creek        6130    4.6     6.4     72     6.4     8.4     76 
                                                -----                  -----
                Basin Index (%)                   63                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   23.6    18.0    131    23.6    19.1    124 
 Blackhall Mtn            9820   34.6      -M       *   34.8      -M       *
 Columbine                9160   24.0    21.7    111    25.8    22.5    115 
 Divide Peak              8880   18.1    17.4    104    21.0    18.6    113 
 Joe Wright              10120   17.9    18.8     95    25.7    22.3    115 
 Laprele Creek            8375   11.1     9.0    123    10.4    10.5     99 
 Med Bow                 10500   36.6      -M       *   32.4      -M       *
 North French Creek      10130   24.1    24.3     99    25.1    23.2    108 
 Never Summer            10280   21.3    17.5    122    17.3      -M       *
 Old Battle              10000   35.3    26.1    135    36.3    30.8    118 
 Rawah                    9020   11.4     9.2    124    15.1    11.7    129 
 Sage Creek Basin         7850   12.9    11.7    110    15.2    12.8    119 
 Sand Lake               10050   28.1    23.9    118    25.5    21.1    121 
 South Brush Creek        8440    9.2    11.1     83    11.6    13.0     89 
 Tower                   10500   39.2    39.3    100    41.6    35.1    119 
 Webber Springs           9250   27.8    20.8    134    31.5    23.3    135 
 Willow Creek Pass        9540   16.3    10.7    152    17.1    11.5    149 
 Zirkel                   9340   39.1    25.7    152    40.2    25.0    161 
                                                -----                  -----
                Basin Index (%)                  118                    122 
 

SWEETWATER

 Deer Park                9700   27.6    12.6    219    32.1    16.8    191 
 Larsen Creek             9000     -M    10.9       *   21.0      -M       *
 South Pass               9040   26.0    13.2    197    23.7    15.0    158 
                                                -----                  -----
                Basin Index (%)                  208                    175 
 

LOWER N. PLATTE

 Casper Mtn.              7900   10.7    11.9     90    10.4    12.4     84 
 Laprele Creek            8375   11.1     9.0    123    10.4    10.5     99 
 Reno Hill                8400   11.0    11.7     94    11.7    12.5     94 
 Windy Peak               7900    9.5     6.8    140    10.0     8.8    114 
                                                -----                  -----
                Basin Index (%)                  107                     96 
 

LARAMIE RIVER

 Brooklyn Lake           10240   24.1    17.5    138    21.7    18.0    121 
 Cinnabar Park            9574   18.1    17.8    102    20.8    21.1     99 
 Crow Creek               8330    4.7     7.1     66     8.1     8.7     93 
 Deadman Hill            10220   19.3    13.6    142    18.2    14.5    126 
 Rawah                    9020   11.4     9.2    124    15.1    11.7    129 
 Roach                    9700   15.3    13.7    112    18.4    16.5    112 
                                                -----                  -----
                Basin Index (%)                  118                    113 
 

S. PLATTE

 Black Mountain           8920    9.3      -M       *   10.5      -M       *
 Crow Creek               8330    4.7     7.1     66     8.1     8.7     93 
 Deadman Hill            10220   19.3    13.6    142    18.2    14.5    126 
                                                -----                  -----
                Basin Index (%)                  116                    113 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.5    11.1     77    15.6    13.3    117 
 Divide Peak              8880   18.1    17.4    104    21.0    18.6    113 
 Elk River                8700   18.5    17.3    107    19.1    17.6    109 
 Little Snake River       8915   29.8    20.7    144    36.7    26.2    140 
 Old Battle              10000   35.3    26.1    135    36.3    30.8    118 
 Sage Creek Basin         7850   12.9    11.7    110    15.2    12.8    119 
 Sandstone RS             8150   11.7    11.7    100    15.3    16.4     93 
 Whiskey Park             8950   26.7    24.0    111    28.3    24.5    116 
                                                -----                  -----
                Basin Index (%)                  115                    117 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.9    11.3    176    21.7    11.6    187 
 Blind Bull Sum           8650   40.4    20.2    200      -M    17.4       *
 East Rim Divide          7930   18.4     9.5    194    19.8    10.4    190 
 Elkhart Park G.S.        9400   17.8    10.5    170    22.1    11.6    191 
 Gros Ventre Summit       8750   17.3    11.3    153    22.0    11.2    196 
 Gunsight Pass            9820   19.9    11.9    167    22.1    12.0    184 
 Kendall R.S.             7740   22.9    11.0    208    27.6    12.8    216 
 Loomis Park              8240   26.6    13.1    203    30.5    15.3    199 
 New Fork Lake            8340   16.0     9.2    174    16.5     9.6    172 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.9    10.9    173    25.5    12.6    202 
 Spring Creek Divide      9000   36.6    20.5    179    37.1    21.1    176 
 Triple Peak              8500   34.8    19.2    181    37.6    22.3    169 
                                                -----                  -----
                Basin Index (%)                  183                    188 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    9.5      -M       *   13.6      -M       *
 Buck Pasture             9632   17.8      -M       *   20.7      -M       *
 EF Blacks Fork GS        9360   15.3      -M       *   14.2      -M       *
 Hams Fork                7840   16.1    10.2    158    18.3    10.0    183 
 Hewinta                  9500    9.3     9.4     99    14.3    12.0    119 
 Hickerson Park           9122    7.1     6.6    108     8.4     8.6     98 
 Hole-in-Rock             9168    5.8     6.4     91     9.1     8.1    112 
 Indian Creek             9425   36.9    20.9    177      -M    19.7       *
 Kelley R.S.              8180   24.9    13.1    190    28.4    15.9    179 
 Spirit Lk               10235   13.4      -M       *   14.7      -M       *
 Steel Creek Park        10158   15.3    13.2    116    17.1    14.0    122 
                                                -----                  -----
                Basin Index (%)                  145                    139 
 

UPPER BEAR RIVER

 Bear River RS            8777   10.5      -M       *   15.4      -M       *
 Bug Lake                 7987   29.9    16.5    181    30.0    17.1    175 
 Burts Miller Ranch       8000    5.9      -M       *    8.5      -M       *
 Chalk Creek #1           9171   31.0    20.6    150    32.0    21.7    147 
 Hayden Fork              9130   21.2    14.1    150    26.7    18.2    147 
 Kelley R.S.              8180   24.9    13.1    190    28.4    15.9    179 
 Lily Lake                9133   13.6    11.4    119    17.0    14.7    116 
 Monte Cristo             8932   33.5    23.9    140    32.4    22.7    143 
 Salt River Summit        7760   20.3    11.8    172      -M    14.7       *
                                                -----                  -----
                Basin Index (%)                  157                    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.