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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 11:18a, 5/24/18
Temperature 66.8°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 THURSDAY: FEBRUARY 23 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   23.6    13.1    180    31.5    16.7    189 
 Black Bear               8170   35.0    28.3    124    42.4    29.6    143 
 Blind Bull Sum           8650   35.7    17.3    206      -M    15.4       *
 Cottonwood Creek         7670   23.3    16.0    146    30.5    18.8    162 
 East Rim Divide          7930   17.0     7.6    224    18.4     9.2    200 
 Grand Targhee            9260   35.1    28.3    124    31.9    23.9    133 
 Granite Creek            6770   27.4    13.1    209      -M    15.9       *
 Grassy Lake              7265   31.2    25.1    124    42.6    28.6    149 
 Gros Ventre Summit       8750   16.6     9.4    177    18.9     9.7    195 
 Gunsight Pass            9820   17.5    10.1    173    20.4    10.4    196 
 Lewis Lake Divide        7850   32.6    24.8    131    41.5    27.8    149 
 Phillips Bench           8200   30.4    19.0    160    38.6    21.9    176 
 Salt River Summit        7760     -M    10.2       *     -M    12.9       *
 Snake River Station      6920   19.3    13.7    141    30.0    18.0    167 
 Spring Creek Divide      9000   31.4    17.5    179      -M    18.6       *
 Thumb Divide             7980   19.8    11.4    174      -M    14.1       *
 Togwotee Pass            9580   26.8    17.1    157    30.9    18.7    165 
 Two Ocean Plateau        9240     -M    20.8       *     -M    20.9       *
 Willow Creek             8380   27.9    21.3    131    40.1    25.8    155 
 Younts Peak              8350   21.9    11.3    194    24.9    12.2    204 
                                                -----                  -----
                Basin Index (%)                  155                    163 
 

MADISON-GALLATIN

 Black Bear               8170   35.0    28.3    124    42.4    29.6    143 
 Canyon                   7870   14.9    10.1    148    21.2    12.6    168 
 Madison Plateau          7750   21.8    17.2    127    29.7    20.3    146 
 West Yellowstone         6700   11.6     8.4    138    19.4    11.2    173 
 Whiskey Creek            6800   13.2    11.5    115    21.9    15.7    139 
                                                -----                  -----
                Basin Index (%)                  128                    151 
 

YELLOWSTONE

 Beartooth Lake           9360   25.0    16.0    156    20.5    15.1    136 
 Burnt Mtn                5880    5.2     3.9    133    10.6     9.0    118 
 Canyon                   7870   14.9    10.1    148    21.2    12.6    168 
 Cole Creek               7850    7.9     9.1     87     5.9     8.7     68 
 Evening Star             9200   29.7    18.6    160    35.4    21.4    165 
 Fisher Creek             9100   31.5    24.9    127    35.7    24.6    145 
 Northeast Entrance       7350    9.7     7.6    128    15.6     9.6    162 
 Parker Peak              9400   25.5    15.2    168    23.4    13.5    173 
 Sylvan Lake              8420   20.0    15.3    131    31.0    17.3    179 
 Thumb Divide             7980   19.8    11.4    174      -M    14.1       *
 Two Ocean Plateau        9240     -M    20.8       *     -M    20.9       *
 White Mill               8700   24.1    17.7    136    26.0    18.4    141 
 Wolverine                7650   14.0     8.4    167    17.4     9.6    181 
                                                -----                  -----
                Basin Index (%)                  144                    152 
 

WIND RIVER

 Burroughs Creek          8750   20.1      -M       *   22.0      -M       *
 Castle Creek             8400   10.9      -M       *   13.1      -M       *
 Cold Springs             9630   10.2     5.4    189    12.4     7.2    172 
 Deer Park                9700   24.9    10.4    239    27.6    14.5    190 
 Hobbs Park              10100   18.8     9.1    207    17.0     9.0    189 
 Kirwin                   9550   15.3     6.6    232    18.1     8.4    215 
 Little Warm              9370   13.0     7.7    169    18.7     9.4    199 
 Owl Creek                8975    6.1     3.7    165     7.8     4.1    190 
 South Pass               9040   22.9    10.8    212    20.7    12.9    160 
 St. Lawrence Alt         8620    5.9     5.0    118    10.5     6.2    169 
 Togwotee Pass            9580   26.8    17.1    157    30.9    18.7    165 
 Townsend Creek           8700    9.6     6.1    157    12.6     8.3    152 
                                                -----                  -----
                Basin Index (%)                  187                    179 
 

BIGHORN BASIN

 Bald Mtn.                9380   14.2    14.0    101    12.4    12.5     99 
 Bear Trap Meadow         8200    4.1     4.1    100     5.3     5.9     90 
 Bone Springs Div         9350   12.1    11.3    107    12.0    11.2    107 
 Grave Springs            8550    4.7     6.2     76     5.1     7.5     68 
 Kirwin                   9550   15.3     6.6    232    18.1     8.4    215 
 Marquette                8760    6.5      -M       *   10.2      -M       *
 Middle Powder            7760    5.3     7.5     71     5.5     8.3     66 
 Owl Creek                8975    6.1     3.7    165     7.8     4.1    190 
 Powder River Pass        9480    5.6     7.6     74     8.4     9.2     91 
 Shell Creek              9580   12.1    10.8    112     9.4    10.1     93 
 Timber Creek             7950    4.6     3.1    148     6.0     5.0    120 
                                                -----                  -----
                Basin Index (%)                  112                    109 
 

SHOSHONE RIVER

 Blackwater               9780   29.5    16.6    178    32.9    15.5    212 
 Evening Star             9200   29.7    18.6    160    35.4    21.4    165 
 Marquette                8760    6.5      -M       *   10.2      -M       *
 Sylvan Road              7120   14.1     8.9    158    25.3    13.5    187 
 Younts Peak              8350   21.9    11.3    194    24.9    12.2    204 
                                                -----                  -----
                Basin Index (%)                  172                    189 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.1     4.1    100     5.3     5.9     90 
 Cloud Peak Reservoir     9860    9.3    10.0     93    10.7     9.2    116 
 Grave Springs            8550    4.7     6.2     76     5.1     7.5     68 
 Hansen Sawmill           8360    6.4     4.4    145     8.2     5.8    141 
 Middle Powder            7760    5.3     7.5     71     5.5     8.3     66 
 Powder River Pass        9480    5.6     7.6     74     8.4     9.2     91 
 Soldier Park             8720    9.3      -M       *    8.0      -M       *
                                                -----                  -----
                Basin Index (%)                   89                     94 
 

TONGUE RIVER

 Big Goose                7990    6.7     6.0    112     7.5     7.6     99 
 Bone Springs Div         9350   12.1    11.3    107    12.0    11.2    107 
 Burgess Junction         7880    7.0     7.8     90     8.2     8.6     95 
 Dome Lake                8880    8.5     8.2    104     9.9     9.6    103 
 Little Goose             8870    7.4      -M       *    9.7      -M       *
 Sucker Creek             8880    8.1     8.5     95     8.0    10.0     80 
 Tie Creek                6870    4.1     4.2     98     8.1     8.0    101 
                                                -----                  -----
                Basin Index (%)                  101                     98 
 

BELLE FOURCHE

 Cole Canyon              5910    2.7     4.8     56     4.8     6.8     71 
                                                -----                  -----
                Basin Index (%)                   56                     71 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.5     6.0     75     6.3     9.0     70 
 North Rapid Creek        6130    4.4     5.7     77     5.4     7.2     75 
                                                -----                  -----
                Basin Index (%)                   76                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   21.7    15.7    138    22.0    16.9    130 
 Blackhall Mtn            9820   31.3      -M       *   30.5      -M       *
 Columbine                9160   21.8    18.8    116    23.5    19.5    121 
 Divide Peak              8880   16.7    15.1    111    18.7    16.3    115 
 Joe Wright              10120   16.6    15.6    106    23.4    19.1    123 
 Laprele Creek            8375    9.5     7.3    130     8.7     9.0     97 
 Med Bow                 10500   31.7      -M       *   28.8      -M       *
 North French Creek      10130   21.0    20.0    105    22.0    20.2    109 
 Never Summer            10280   19.2    15.2    126    15.8      -M       *
 Old Battle              10000   31.6    23.2    136    31.3    27.0    116 
 Rawah                    9020   10.8     8.0    135    13.8    10.3    134 
 Sage Creek Basin         7850   13.7    10.4    132    13.7    11.4    120 
 Sand Lake               10050   23.7    20.1    118    21.9    18.2    120 
 South Brush Creek        8440    9.6     9.5    101    10.0    11.2     89 
 Tower                   10500   36.6    35.0    105    37.4    30.6    122 
 Webber Springs           9250   25.3    17.9    141    28.6    20.3    141 
 Willow Creek Pass        9540   15.3     9.1    168    16.2     9.9    164 
 Zirkel                   9340   36.1    22.3    162    36.8    22.5    164 
                                                -----                  -----
                Basin Index (%)                  125                    125 
 

SWEETWATER

 Deer Park                9700   24.9    10.4    239    27.6    14.5    190 
 Larsen Creek             9000   17.4     9.0    193    19.7      -M       *
 South Pass               9040   22.9    10.8    212    20.7    12.9    160 
                                                -----                  -----
                Basin Index (%)                  216                    176 
 

LOWER N. PLATTE

 Casper Mtn.              7900    8.0     9.6     83     7.5    10.6     71 
 Laprele Creek            8375    9.5     7.3    130     8.7     9.0     97 
 Reno Hill                8400    9.0     9.4     96     9.3    10.6     88 
 Windy Peak               7900    8.0     5.5    145     8.1     7.5    108 
                                                -----                  -----
                Basin Index (%)                  108                     89 
 

LARAMIE RIVER

 Brooklyn Lake           10240   20.1    14.5    139    17.8    15.4    116 
 Cinnabar Park            9574   15.7    16.4     96    18.2    19.1     95 
 Crow Creek               8330    4.0     6.6     61     6.6     7.6     87 
 Deadman Hill            10220   16.9    12.1    140    16.0    12.2    131 
 Rawah                    9020   10.8     8.0    135    13.8    10.3    134 
 Roach                    9700   14.6    12.1    121    17.1    14.1    121 
                                                -----                  -----
                Basin Index (%)                  118                    114 
 

S. PLATTE

 Black Mountain           8920    8.0      -M       *    9.1      -M       *
 Crow Creek               8330    4.0     6.6     61     6.6     7.6     87 
 Deadman Hill            10220   16.9    12.1    140    16.0    12.2    131 
                                                -----                  -----
                Basin Index (%)                  112                    114 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    9.3     9.3    100    13.5    11.7    115 
 Divide Peak              8880   16.7    15.1    111    18.7    16.3    115 
 Elk River                8700   17.9    14.5    123    17.3    15.4    112 
 Little Snake River       8915   27.9    19.2    145    33.2    24.3    137 
 Old Battle              10000   31.6    23.2    136    31.3    27.0    116 
 Sage Creek Basin         7850   13.7    10.4    132    13.7    11.4    120 
 Sandstone RS             8150   11.4    10.3    111    13.6    14.6     93 
 Whiskey Park             8950   23.8    20.3    117    25.0    21.6    116 
                                                -----                  -----
                Basin Index (%)                  125                    117 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   18.8     9.5    198    20.5    10.0    205 
 Blind Bull Sum           8650   35.7    17.3    206      -M    15.4       *
 East Rim Divide          7930   17.0     7.6    224    18.4     9.2    200 
 Elkhart Park G.S.        9400   15.9     9.0    177    20.3    10.0    203 
 Gros Ventre Summit       8750   16.6     9.4    177    18.9     9.7    195 
 Gunsight Pass            9820   17.5    10.1    173    20.4    10.4    196 
 Kendall R.S.             7740   20.3     9.5    214      -M    11.2       *
 Loomis Park              8240   23.6    11.3    209    26.9    13.5    199 
 New Fork Lake            8340   14.8     7.8    190    14.9     8.4    177 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   17.9     9.2    195    23.0    11.1    207 
 Spring Creek Divide      9000   31.4    17.5    179      -M    18.6       *
 Triple Peak              8500   32.1    16.2    198    33.4    19.4    172 
                                                -----                  -----
                Basin Index (%)                  195                    193 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    9.8      -M       *   12.4      -M       *
 Buck Pasture             9632   16.4      -M       *   18.9      -M       *
 EF Blacks Fork GS        9360   13.6      -M       *   12.9      -M       *
 Hams Fork                7840   15.2     8.8    173    16.7     8.8    190 
 Hewinta                  9500   10.4     7.4    141    12.8    10.4    123 
 Hickerson Park           9122    7.5     5.5    136     7.7     7.3    105 
 Hole-in-Rock             9168    6.2     5.2    119     8.3     6.8    122 
 Indian Creek             9425   32.1    17.8    180      -M    17.1       *
 Kelley R.S.              8180   22.3    11.3    197    25.8    14.0    184 
 Spirit Lk               10235   12.8      -M       *   13.8      -M       *
 Steel Creek Park        10158   14.0    10.9    128    15.3    11.9    129 
                                                -----                  -----
                Basin Index (%)                  161                    146 
 

UPPER BEAR RIVER

 Bear River RS            8777   11.4      -M       *   13.9      -M       *
 Bug Lake                 7987   27.0    14.1    191    27.2    15.0    181 
 Burts Miller Ranch       8000    6.8      -M       *    7.6      -M       *
 Chalk Creek #1           9171   28.2    17.3    163    28.9    18.8    154 
 Hayden Fork              9130   19.9    11.5    173      -M    15.7       *
 Kelley R.S.              8180   22.3    11.3    197    25.8    14.0    184 
 Lily Lake                9133   13.3     9.8    136    15.5    12.7    122 
 Monte Cristo             8932   29.7    19.8    150    29.3    19.7    149 
 Salt River Summit        7760     -M    10.2       *     -M    12.9       *
                                                -----                  -----
                Basin Index (%)                  168                    158 

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


 -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.