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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 5:38a, 10/18/18
Temperature 37.3°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 WEDNESDAY: MARCH 22 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   24.2    14.7    165    37.6    19.2    196 
 Black Bear               8170   44.5    32.9    135    49.8    34.8    143 
 Blind Bull Sum           8650   40.9    20.7    198      -M    17.8       *
 Cottonwood Creek         7670   25.1    20.2    124    34.5    22.2    155 
 East Rim Divide          7930   17.3     9.6    180    19.9    10.6    188 
 Grand Targhee            9260   41.3    33.2    124    37.5    27.2    138 
 Granite Creek            6770   28.8    14.8    195    34.5    18.2    190 
 Grassy Lake              7265   35.2    29.6    119    50.8    32.9    154 
 Gros Ventre Summit       8750     -M    11.8       *     -M    11.5       *
 Gunsight Pass            9820   19.8    12.2    162    22.4    12.2    184 
 Lewis Lake Divide        7850   40.1    28.0    143    51.8    32.4    160 
 Phillips Bench           8200   34.5    22.6    153    44.3    25.5    174 
 Salt River Summit        7760   19.2    12.1    159    26.9    15.1    178 
 Snake River Station      6920   19.3    15.4    125    33.5    20.6    163 
 Spring Creek Divide      9000   36.9    21.5    172    37.2    21.6    172 
 Thumb Divide             7980   22.4    14.3    157    26.4    16.6    159 
 Togwotee Pass            9580   31.0    20.8    149    35.6    21.9    163 
 Two Ocean Plateau        9240     -M    24.2       *     -M    24.7       *
 Willow Creek             8380   29.4    25.3    116    45.5    30.2    151 
 Younts Peak              8350   25.7    13.6    189    29.8    14.3    208 
                                                -----                  -----
                Basin Index (%)                  148                    165 
 

MADISON-GALLATIN

 Black Bear               8170   44.5    32.9    135    49.8    34.8    143 
 Canyon                   7870   16.9    11.8    143    24.3    14.7    165 
 Madison Plateau          7750   25.5    20.2    126    33.7    23.8    142 
 West Yellowstone         6700   10.4    10.0    104    21.8    12.8    170 
 Whiskey Creek            6800   14.0    14.3     98    24.8    18.3    136 
                                                -----                  -----
                Basin Index (%)                  125                    148 
 

YELLOWSTONE

 Beartooth Lake           9360   30.7    19.7    156    26.2    17.9    146 
 Burnt Mtn                5880    2.8     4.7     60    12.4    11.0    113 
 Canyon                   7870   16.9    11.8    143    24.3    14.7    165 
 Cole Creek               7850    9.6    12.2     79     6.8    10.9     62 
 Evening Star             9200   36.6    22.5    163    42.7    24.7    173 
 Fisher Creek             9100   41.3    28.3    146    44.2    28.8    153 
 Northeast Entrance       7350   10.3     9.2    112    19.1    11.0    174 
 Parker Peak              9400   31.5    17.8    177    32.3    15.8    204 
 Sylvan Lake              8420   22.6    18.3    123    35.0    20.1    174 
 Thumb Divide             7980   22.4    14.3    157    26.4    16.6    159 
 Two Ocean Plateau        9240     -M    24.2       *     -M    24.7       *
 White Mill               8700   33.0    20.2    163    33.7    21.4    157 
 Wolverine                7650   10.1     8.9    113    20.1    11.1    181 
                                                -----                  -----
                Basin Index (%)                  143                    158 
 

WIND RIVER

 Burroughs Creek          8750   23.2      -M       *   25.7      -M       *
 Castle Creek             8400   11.3      -M       *   14.4      -M       *
 Cold Springs             9630   11.8     6.5    182    14.9     8.6    173 
 Deer Park                9700   27.0    13.7    197    32.2    17.4    185 
 Hobbs Park              10100   21.7    12.1    179    20.4    11.3    181 
 Kirwin                   9550   19.1     8.5    225    21.5    10.1    213 
 Little Warm              9370   15.6     9.4    166    21.4    11.3    189 
 Owl Creek                8975    6.7     4.6    146     9.1     5.1    178 
 South Pass               9040   25.5    14.2    180    23.8    15.5    154 
 St. Lawrence Alt         8620    5.3     6.3     84    12.0     7.6    158 
 Togwotee Pass            9580   31.0    20.8    149    35.6    21.9    163 
 Townsend Creek           8700   11.7     8.4    139    16.0    10.2    157 
                                                -----                  -----
                Basin Index (%)                  168                    174 
 

BIGHORN BASIN

 Bald Mtn.                9380   17.2    16.6    104    14.9    15.0     99 
 Bear Trap Meadow         8200    4.2     5.2     81     6.2     7.2     86 
 Bone Springs Div         9350   16.0    14.2    113    15.3    13.6    112 
 Grave Springs            8550    5.8     8.3     70     6.1     9.1     67 
 Kirwin                   9550   19.1     8.5    225    21.5    10.1    213 
 Marquette                8760    7.1      -M       *   11.7      -M       *
 Middle Powder            7760    5.9    10.1     58     6.2    10.2     61 
 Owl Creek                8975    6.7     4.6    146     9.1     5.1    178 
 Powder River Pass        9480    6.8     9.3     73    10.6    11.0     96 
 Shell Creek              9580   14.9    13.0    115    11.9    12.0     99 
 Timber Creek             7950    4.3     4.1    105     7.0     6.2    113 
                                                -----                  -----
                Basin Index (%)                  107                    109 
 

SHOSHONE RIVER

 Blackwater               9780   35.8    21.0    170    39.7    18.3    217 
 Evening Star             9200   36.6    22.5    163    42.7    24.7    173 
 Marquette                8760    7.1      -M       *   11.7      -M       *
 Sylvan Road              7120   12.9    10.5    123    29.4    15.3    192 
 Younts Peak              8350   25.7    13.6    189    29.8    14.3    208 
                                                -----                  -----
                Basin Index (%)                  164                    195 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.2     5.2     81     6.2     7.2     86 
 Cloud Peak Reservoir     9860   12.0    13.1     92    13.1    11.4    115 
 Grave Springs            8550    5.8     8.3     70     6.1     9.1     67 
 Hansen Sawmill           8360    7.4     5.8    128     9.6     7.3    132 
 Middle Powder            7760    5.9    10.1     58     6.2    10.2     61 
 Powder River Pass        9480    6.8     9.3     73    10.6    11.0     96 
 Soldier Park             8720   11.2      -M       *    9.5      -M       *
                                                -----                  -----
                Basin Index (%)                   81                     92 
 

TONGUE RIVER

 Big Goose                7990    8.2     8.0    102     9.6     9.4    102 
 Bone Springs Div         9350   16.0    14.2    113    15.3    13.6    112 
 Burgess Junction         7880    8.1     9.7     84     9.1    10.6     86 
 Dome Lake                8880   12.5    10.4    120    12.4    11.7    106 
 Little Goose             8870    8.9      -M       *   12.0      -M       *
 Sucker Creek             8880    9.7    11.0     88     9.9    12.4     80 
 Tie Creek                6870    2.8     5.1     55    10.0     9.9    101 
                                                -----                  -----
                Basin Index (%)                   98                     98 
 

BELLE FOURCHE

 Cole Canyon              5910    1.5     5.6     27     6.5     8.0     81 
                                                -----                  -----
                Basin Index (%)                   27                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    2.4     7.2     33     7.9    10.6     75 
 North Rapid Creek        6130    3.5     6.6     53     6.7     8.7     77 
                                                -----                  -----
                Basin Index (%)                   43                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   23.1    18.1    128    23.6    19.8    119 
 Blackhall Mtn            9820   34.2      -M       *   35.2      -M       *
 Columbine                9160   21.4    22.1     97    26.1    23.2    112 
 Divide Peak              8880   16.1    17.9     90    20.9    19.3    108 
 Joe Wright              10120   16.9    19.3     88    25.7    23.1    111 
 Laprele Creek            8375   10.4     9.3    112    10.6    10.9     97 
 Med Bow                 10500   37.3      -M       *   32.5      -M       *
 North French Creek      10130   23.3    25.8     90    25.2    23.9    105 
 Never Summer            10280   20.9    18.0    116    17.2      -M       *
 Old Battle              10000   35.4    26.8    132    36.4    31.8    114 
 Rawah                    9020    9.6     9.7     99    15.2    12.4    123 
 Sage Creek Basin         7850    9.7    11.5     84    15.2    13.0    117 
 Sand Lake               10050   28.5    25.1    114    25.5    21.9    116 
 South Brush Creek        8440    7.3    11.2     65    11.7    13.5     87 
 Tower                   10500   38.9    40.5     96    41.8    36.1    116 
 Webber Springs           9250   25.5    21.3    120    31.6    24.1    131 
 Willow Creek Pass        9540   16.2    11.0    147    17.1    11.8    145 
 Zirkel                   9340   36.1    25.6    141    40.3    25.6    157 
                                                -----                  -----
                Basin Index (%)                  108                    118 
 

SWEETWATER

 Deer Park                9700   27.0    13.7    197    32.2    17.4    185 
 Larsen Creek             9000   16.0    11.3    142    21.0      -M       *
 South Pass               9040   25.5    14.2    180    23.8    15.5    154 
                                                -----                  -----
                Basin Index (%)                  175                    170 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.6    12.5     77    10.4    12.9     81 
 Laprele Creek            8375   10.4     9.3    112    10.6    10.9     97 
 Reno Hill                8400   10.5    12.2     86    11.8    13.2     89 
 Windy Peak               7900    8.4     7.3    115    10.1     9.2    110 
                                                -----                  -----
                Basin Index (%)                   94                     93 
 

LARAMIE RIVER

 Brooklyn Lake           10240   24.0    17.9    134    21.8    18.7    117 
 Cinnabar Park            9574   16.9    18.4     92    20.8    21.5     97 
 Crow Creek               8330    2.5     6.9     36     8.1     9.1     89 
 Deadman Hill            10220   19.4    14.1    138    18.2    15.2    120 
 Rawah                    9020    9.6     9.7     99    15.2    12.4    123 
 Roach                    9700   15.0    14.2    106    18.4    17.1    108 
                                                -----                  -----
                Basin Index (%)                  108                    109 
 

S. PLATTE

 Black Mountain           8920    9.2      -M       *   10.5      -M       *
 Crow Creek               8330    2.5     6.9     36     8.1     9.1     89 
 Deadman Hill            10220   19.4    14.1    138    18.2    15.2    120 
                                                -----                  -----
                Basin Index (%)                  104                    108 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    5.4    11.3     48    15.7    13.7    115 
 Divide Peak              8880   16.1    17.9     90    20.9    19.3    108 
 Elk River                8700   15.2    17.4     87    19.1    18.1    106 
 Little Snake River       8915   27.1    21.3    127    36.8    26.7    138 
 Old Battle              10000   35.4    26.8    132    36.4    31.8    114 
 Sage Creek Basin         7850    9.7    11.5     84    15.2    13.0    117 
 Sandstone RS             8150   10.2    12.6     81    15.2    16.8     90 
 Whiskey Park             8950   25.3    24.5    103    28.3    25.2    112 
                                                -----                  -----
                Basin Index (%)                  101                    114 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.3    11.8    164    21.6    11.9    182 
 Blind Bull Sum           8650   40.9    20.7    198      -M    17.8       *
 East Rim Divide          7930   17.3     9.6    180    19.9    10.6    188 
 Elkhart Park G.S.        9400   17.5    10.9    161    22.2    11.9    187 
 Gros Ventre Summit       8750     -M    11.8       *     -M    11.5       *
 Gunsight Pass            9820   19.8    12.2    162    22.4    12.2    184 
 Kendall R.S.             7740   21.3    11.4    187    27.6    13.0    212 
 Loomis Park              8240   25.7    13.6    189    30.6    15.7    195 
 New Fork Lake            8340   15.8     9.4    168    16.8     9.8    171 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.1    11.1    163    25.5    12.9    198 
 Spring Creek Divide      9000   36.9    21.5    172    37.2    21.6    172 
 Triple Peak              8500   34.4    19.8    174    37.7    23.0    164 
                                                -----                  -----
                Basin Index (%)                  176                    183 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    8.1      -M       *   13.6      -M       *
 Buck Pasture             9632   15.8      -M       *   20.7      -M       *
 EF Blacks Fork GS        9360   13.1      -M       *   14.2      -M       *
 Hams Fork                7840   13.6    10.4    131    18.7    10.3    182 
 Hewinta                  9500    6.5     9.9     66    14.1    12.5    113 
 Hickerson Park           9122    5.8     6.7     87     8.4     9.0     93 
 Hole-in-Rock             9168    4.2     6.8     62     9.2     8.4    110 
 Indian Creek             9425   37.1    21.6    172      -M    20.4       *
 Kelley R.S.              8180   23.9    13.7    174    28.4    16.4    173 
 Spirit Lk               10235   11.8      -M       *   14.7      -M       *
 Steel Creek Park        10158   15.1    13.6    111    17.2    14.5    119 
                                                -----                  -----
                Basin Index (%)                  128                    135 
 

UPPER BEAR RIVER

 Bear River RS            8777    7.9      -M       *   15.5      -M       *
 Bug Lake                 7987   29.3    16.9    173    30.1    17.6    171 
 Burts Miller Ranch       8000    3.0      -M       *    8.4      -M       *
 Chalk Creek #1           9171   30.3    21.6    140    32.1    22.4    143 
 Hayden Fork              9130   17.3    14.4    120    26.7    18.8    142 
 Kelley R.S.              8180   23.9    13.7    174    28.4    16.4    173 
 Lily Lake                9133   10.9    11.5     95    16.9    15.2    111 
 Monte Cristo             8932   32.1    24.7    130    34.7    23.4    148 
 Salt River Summit        7760   19.2    12.1    159    26.9    15.1    178 
                                                -----                  -----
                Basin Index (%)                  142                    152 

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


 -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.