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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 6:22a, 8/18/18
Temperature 56.3°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 SATURDAY: FEBRUARY 18 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   21.8    12.9    169    30.3    16.0    189 
 Black Bear               8170   30.4    27.5    111    39.2    28.4    138 
 Blind Bull Sum           8650   33.0    16.5    200      -M    14.8       *
 Cottonwood Creek         7670   21.6    15.2    142    29.0    18.1    160 
 East Rim Divide          7930   15.6     7.4    211    17.4     8.7    200 
 Grand Targhee            9260   33.1    27.2    122    30.8    23.5    131 
 Granite Creek            6770   23.3    12.8    182    26.5    15.3    173 
 Grassy Lake              7265   29.4    24.5    120    42.0    27.5    153 
 Gros Ventre Summit       8750   14.1     9.1    155    18.4     9.3    198 
 Gunsight Pass            9820   15.8     9.8    161    19.0    10.1    188 
 Lewis Lake Divide        7850   29.3    23.7    124    41.0    26.7    154 
 Phillips Bench           8200   26.9    18.2    148    36.6    21.0    174 
 Salt River Summit        7760   16.9     9.6    176    22.6    12.3    184 
 Snake River Station      6920   17.5    13.4    131    28.5    17.5    163 
 Spring Creek Divide      9000   28.8    16.6    173    29.6    17.8    166 
 Thumb Divide             7980   17.2    11.0    156    21.0    13.6    154 
 Togwotee Pass            9580   24.8    16.7    149    28.6    18.0    159 
 Two Ocean Plateau        9240     -M    19.8       *     -M    20.0       *
 Willow Creek             8380   26.7    20.0    134    37.5    24.6    152 
 Younts Peak              8350   19.9    11.1    179    23.5    11.8    199 
                                                -----                  -----
                Basin Index (%)                  147                    163 
 

MADISON-GALLATIN

 Black Bear               8170   30.4    27.5    111    39.2    28.4    138 
 Canyon                   7870   13.6     9.6    142    20.3    12.2    166 
 Madison Plateau          7750   19.0    16.1    118    27.6    19.4    142 
 West Yellowstone         6700   10.2     7.9    129    18.2    10.9    167 
 Whiskey Creek            6800   12.1    11.1    109    20.3    15.0    135 
                                                -----                  -----
                Basin Index (%)                  118                    146 
 

YELLOWSTONE

 Beartooth Lake           9360   23.7    15.5    153    19.6    14.6    134 
 Burnt Mtn                5880    4.9     3.7    132    10.1     8.9    113 
 Canyon                   7870   13.6     9.6    142    20.3    12.2    166 
 Cole Creek               7850    7.4     8.9     83     5.7     8.5     67 
 Evening Star             9200   27.6    18.0    153      -M    20.5       *
 Fisher Creek             9100   29.1    23.9    122    33.5    23.6    142 
 Northeast Entrance       7350    9.2     7.5    123    15.1     9.3    162 
 Parker Peak              9400   24.0    14.4    167    23.4    12.9    181 
 Sylvan Lake              8420   18.1    14.6    124    29.2    16.7    175 
 Thumb Divide             7980   17.2    11.0    156    21.0    13.6    154 
 Two Ocean Plateau        9240     -M    19.8       *     -M    20.0       *
 White Mill               8700   22.7    16.6    137    24.9    17.7    141 
 Wolverine                7650   13.8     8.1    170    16.9     9.3    182 
                                                -----                  -----
                Basin Index (%)                  139                    149 
 

WIND RIVER

 Burroughs Creek          8750   18.4      -M       *   20.8      -M       *
 Castle Creek             8400   10.0      -M       *   12.3      -M       *
 Cold Springs             9630    9.3     5.3    175    11.8     6.9    171 
 Deer Park                9700   23.3    10.0    233    26.4    14.1    187 
 Hobbs Park              10100   16.7     8.8    190    15.6     8.8    177 
 Kirwin                   9550   14.1     6.2    227    17.1     8.1    211 
 Little Warm              9370   11.4     7.5    152    17.0     9.1    187 
 Owl Creek                8975    5.6     3.4    165     7.2     4.0    180 
 South Pass               9040   21.7    10.4    209    20.2    12.5    162 
 St. Lawrence Alt         8620    5.0     4.7    106     9.4     6.0    157 
 Togwotee Pass            9580   24.8    16.7    149    28.6    18.0    159 
 Townsend Creek           8700    8.6     5.9    146    11.9     8.1    147 
                                                -----                  -----
                Basin Index (%)                  178                    173 
 

BIGHORN BASIN

 Bald Mtn.                9380   13.9    13.3    105    12.3    12.0    102 
 Bear Trap Meadow         8200    3.9     3.9    100     5.2     5.7     91 
 Bone Springs Div         9350   11.7    11.0    106    11.8    10.8    109 
 Grave Springs            8550    4.5     5.7     79     4.9     7.3     67 
 Kirwin                   9550   14.1     6.2    227    17.1     8.1    211 
 Marquette                8760    6.2      -M       *    9.9      -M       *
 Middle Powder            7760    5.0     7.2     69     5.6     8.2     68 
 Owl Creek                8975    5.6     3.4    165     7.2     4.0    180 
 Powder River Pass        9480    5.0     7.3     68     8.0     8.8     91 
 Shell Creek              9580   11.6    10.3    113     9.2     9.8     94 
 Timber Creek             7950    4.4     3.1    142     5.8     4.9    118 
                                                -----                  -----
                Basin Index (%)                  112                    109 
 

SHOSHONE RIVER

 Blackwater               9780   27.4    15.9    172    30.9    15.0    206 
 Evening Star             9200   27.6    18.0    153      -M    20.5       *
 Marquette                8760    6.2      -M       *    9.9      -M       *
 Sylvan Road              7120   13.2     8.7    152    24.3    13.1    185 
 Younts Peak              8350   19.9    11.1    179    23.5    11.8    199 
                                                -----                  -----
                Basin Index (%)                  164                    197 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.9     3.9    100     5.2     5.7     91 
 Cloud Peak Reservoir     9860    8.7     9.7     90    10.5     8.8    119 
 Grave Springs            8550    4.5     5.7     79     4.9     7.3     67 
 Hansen Sawmill           8360    6.0     4.4    136     7.9     5.6    141 
 Middle Powder            7760    5.0     7.2     69     5.6     8.2     68 
 Powder River Pass        9480    5.0     7.3     68     8.0     8.8     91 
 Soldier Park             8720    9.2      -M       *    7.8      -M       *
                                                -----                  -----
                Basin Index (%)                   87                     95 
 

TONGUE RIVER

 Big Goose                7990    6.4     5.8    110     7.4     7.4    100 
 Bone Springs Div         9350   11.7    11.0    106    11.8    10.8    109 
 Burgess Junction         7880    7.0     7.5     93     8.1     8.4     96 
 Dome Lake                8880    8.1     7.9    103     9.5     9.3    102 
 Little Goose             8870    6.9      -M       *    9.2      -M       *
 Sucker Creek             8880    7.7     8.1     95     8.0     9.8     82 
 Tie Creek                6870    4.2     4.0    105     7.9     7.9    100 
                                                -----                  -----
                Basin Index (%)                  102                     98 
 

BELLE FOURCHE

 Cole Canyon              5910    3.1     4.6     67     4.7     6.7     70 
                                                -----                  -----
                Basin Index (%)                   67                     70 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.5     5.7     79     5.9     8.8     67 
 North Rapid Creek        6130    4.4     5.4     81     5.2     7.1     73 
                                                -----                  -----
                Basin Index (%)                   80                     70 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   21.5    15.1    142    21.9    16.3    134 
 Blackhall Mtn            9820   30.1      -M       *   29.8      -M       *
 Columbine                9160   21.6    17.8    121    23.4    18.8    124 
 Divide Peak              8880   15.6    14.3    109    17.9    15.7    114 
 Joe Wright              10120   16.2    15.0    108    23.0    18.3    126 
 Laprele Creek            8375    9.2     6.8    135     8.6     8.6    100 
 Med Bow                 10500   30.0      -M       *   27.6      -M       *
 North French Creek      10130   19.3    19.4     99    20.5    19.4    106 
 Never Summer            10280   18.7    14.4    130    15.5      -M       *
 Old Battle              10000   29.9    22.4    133    31.2    25.9    120 
 Rawah                    9020   11.0     7.5    147    13.7    10.0    137 
 Sage Creek Basin         7850   12.8    10.0    128    12.8    11.1    115 
 Sand Lake               10050   22.6    19.0    119    21.3    17.4    122 
 South Brush Creek        8440    8.3     8.8     94     9.6    10.7     90 
 Tower                   10500   35.7    33.2    108    37.4    29.3    128 
 Webber Springs           9250   23.9    17.0    141    27.7    19.5    142 
 Willow Creek Pass        9540   15.1     8.7    174    16.0     9.5    168 
 Zirkel                   9340   34.8    21.3    163    35.9    21.7    165 
                                                -----                  -----
                Basin Index (%)                  126                    127 
 

SWEETWATER

 Deer Park                9700   23.3    10.0    233    26.4    14.1    187 
 Larsen Creek             9000   16.5     8.6    192    18.9      -M       *
 South Pass               9040   21.7    10.4    209    20.2    12.5    162 
                                                -----                  -----
                Basin Index (%)                  212                    175 
 

LOWER N. PLATTE

 Casper Mtn.              7900    7.7     9.2     84     7.6    10.3     74 
 Laprele Creek            8375    9.2     6.8    135     8.6     8.6    100 
 Reno Hill                8400    8.6     9.0     96     9.2    10.3     89 
 Windy Peak               7900    7.2     5.2    138     7.8     7.3    107 
                                                -----                  -----
                Basin Index (%)                  108                     91 
 

LARAMIE RIVER

 Brooklyn Lake           10240   19.5    14.1    138    17.6    14.8    119 
 Cinnabar Park            9574   15.0    16.0     94    17.7    18.5     96 
 Crow Creek               8330    3.6     6.5     55     6.2     7.3     85 
 Deadman Hill            10220   16.4    11.6    141    15.9    11.7    136 
 Rawah                    9020   11.0     7.5    147    13.7    10.0    137 
 Roach                    9700   14.0    11.7    120    16.6    13.5    123 
                                                -----                  -----
                Basin Index (%)                  118                    116 
 

S. PLATTE

 Black Mountain           8920    7.6      -M       *    8.8      -M       *
 Crow Creek               8330    3.6     6.5     55     6.2     7.3     85 
 Deadman Hill            10220   16.4    11.6    141    15.9    11.7    136 
                                                -----                  -----
                Basin Index (%)                  110                    116 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.8     8.8    100    12.7    11.2    113 
 Divide Peak              8880   15.6    14.3    109    17.9    15.7    114 
 Elk River                8700   16.9    13.9    122    16.8    14.8    114 
 Little Snake River       8915   26.4    18.5    143    32.1    23.5    137 
 Old Battle              10000   29.9    22.4    133    31.2    25.9    120 
 Sage Creek Basin         7850   12.8    10.0    128    12.8    11.1    115 
 Sandstone RS             8150   10.7    10.0    107    13.0    13.9     94 
 Whiskey Park             8950   22.4    19.5    115    24.0    20.8    115 
                                                -----                  -----
                Basin Index (%)                  122                    117 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   17.5     9.1    192    19.4     9.6    202 
 Blind Bull Sum           8650   33.0    16.5    200      -M    14.8       *
 East Rim Divide          7930   15.6     7.4    211    17.4     8.7    200 
 Elkhart Park G.S.        9400   14.3     8.7    164    19.0     9.6    198 
 Gros Ventre Summit       8750   14.1     9.1    155    18.4     9.3    198 
 Gunsight Pass            9820   15.8     9.8    161    19.0    10.1    188 
 Kendall R.S.             7740   18.7     9.1    205    22.7    10.6    214 
 Loomis Park              8240   21.8    10.7    204    26.1    12.9    202 
 New Fork Lake            8340   14.0     7.6    184    14.3     8.0    179 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   16.0     9.1    176    21.6    10.6    204 
 Spring Creek Divide      9000   28.8    16.6    173    29.6    17.8    166 
 Triple Peak              8500   30.0    15.6    192    31.2    18.3    170 
                                                -----                  -----
                Basin Index (%)                  185                    190 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    8.8      -M       *   11.4      -M       *
 Buck Pasture             9632   15.2      -M       *   17.5      -M       *
 EF Blacks Fork GS        9360   12.4      -M       *     -M      -M       *
 Hams Fork                7840   14.1     8.5    166    16.1     8.4    192 
 Hewinta                  9519    9.8     7.0    140    11.7     9.9    118 
 Hickerson Park           9145    6.5     5.2    125     6.8     7.0     97 
 Hole-in-Rock             9150    5.3     4.8    110     7.3     6.6    111 
 Indian Creek             9425   29.1    16.8    173      -M    16.4       *
 Kelley R.S.              8180   20.8    10.8    193    24.2    13.4    181 
 Spirit Lk               10235   10.8      -M       *   12.1      -M       *
 Steel Creek Park        10200   12.6    10.4    121    14.2    11.4    125 
                                                -----                  -----
                Basin Index (%)                  155                    142 
 

UPPER BEAR RIVER

 Bear River RS            8777   10.5      -M       *   12.9      -M       *
 Bug Lake                 7950   25.5    13.4    190    24.5    14.3    171 
 Burts Miller Ranch       8000    5.5      -M       *    6.7      -M       *
 Chalk Creek #1           8993   26.0    16.3    160    27.0    18.0    150 
 Hayden Fork              9212   17.8    11.2    159    22.7    15.1    150 
 Kelley R.S.              8180   20.8    10.8    193    24.2    13.4    181 
 Lily Lake                9156   12.5     9.2    136    14.4    12.2    118 
 Monte Cristo             8960   26.8    19.1    140    25.6    18.8    136 
 Salt River Summit        7760   16.9     9.6    176    22.6    12.3    184 
                                                -----                  -----
                Basin Index (%)                  163                    155 

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


 -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.