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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 6:53p, 10/17/18
Temperature 45.4°F
Wind 6.0 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 SUNDAY: MARCH 12 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   26.5    13.8    192    36.8    18.3    201 
 Black Bear               8170   42.5    31.6    134    48.6    33.3    146 
 Blind Bull Sum           8650   40.4    19.6    206      -M    17.0       *
 Cottonwood Creek         7670   26.7    18.6    144    34.2    20.9    164 
 East Rim Divide          7930   18.6     9.5    196    19.7    10.2    193 
 Grand Targhee            9260   39.9    32.1    124    34.8    25.7    135 
 Granite Creek            6770   30.1    14.7    205    34.2    17.6    194 
 Grassy Lake              7265   35.6    27.7    129    49.3    31.4    157 
 Gros Ventre Summit       8750     -M    10.9       *     -M    11.0       *
 Gunsight Pass            9820   19.5    11.6    168    22.0    11.7    188 
 Lewis Lake Divide        7850   38.2    26.7    143      -M    30.9       *
 Phillips Bench           8200   34.7    21.4    162      -M    24.3       *
 Salt River Summit        7760   20.4    11.3    181      -M    14.3       *
 Snake River Station      6920   21.3    15.2    140    32.5    19.7    165 
 Spring Creek Divide      9000   36.3    19.7    184      -M    20.5       *
 Thumb Divide             7980   21.9    13.3    165    22.9    15.8    145 
 Togwotee Pass            9580   30.2    19.6    154    34.2    20.8    164 
 Two Ocean Plateau        9240     -M    23.2       *     -M    23.4       *
 Willow Creek             8380   30.1    24.2    124    44.7    28.7    156 
 Younts Peak              8350   26.4    12.4    213    28.4    13.5    210 
                                                -----                  -----
                Basin Index (%)                  157                    165 
 

MADISON-GALLATIN

 Black Bear               8170   42.5    31.6    134    48.6    33.3    146 
 Canyon                   7870   16.9    11.5    147    23.2    14.0    166 
 Madison Plateau          7750   25.1    19.4    129    32.5    22.9    142 
 West Yellowstone         6700   12.4     9.8    127    20.9    12.4    169 
 Whiskey Creek            6800   15.0    13.3    113    24.0    17.5    137 
                                                -----                  -----
                Basin Index (%)                  131                    149 
 

YELLOWSTONE

 Beartooth Lake           9360   29.1    18.4    158    24.5    16.9    145 
 Burnt Mtn                5880    5.9     4.3    137    12.0    10.2    118 
 Canyon                   7870   16.9    11.5    147    23.2    14.0    166 
 Cole Creek               7850    9.3    11.3     82     6.6    10.0     66 
 Evening Star             9200   34.8    21.1    165    34.9    23.5    149 
 Fisher Creek             9100   38.3    27.2    141    41.5    27.4    151 
 Northeast Entrance       7350   11.8     8.7    136    17.8    10.5    170 
 Parker Peak              9400   29.7    16.8    177      -M    15.0       *
 Sylvan Lake              8420   22.3    17.1    130    33.7    19.1    176 
 Thumb Divide             7980   21.9    13.3    165    22.9    15.8    145 
 Two Ocean Plateau        9240     -M    23.2       *     -M    23.4       *
 White Mill               8700   30.6    19.3    159    31.5    20.3    155 
 Wolverine                7650   14.0     9.0    156    19.2    10.5    183 
                                                -----                  -----
                Basin Index (%)                  149                    150 
 

WIND RIVER

 Burroughs Creek          8750   23.6      -M       *   24.9      -M       *
 Castle Creek             8400   12.0      -M       *   14.3      -M       *
 Cold Springs             9630   12.3     6.0    205    14.9     8.1    184 
 Deer Park                9700   28.3    12.2    232    32.1    16.3    197 
 Hobbs Park              10100   22.4    11.0    204    20.4    10.4    196 
 Kirwin                   9550   17.8     7.9    225    20.5     9.4    218 
 Little Warm              9370   15.5     8.8    176    21.1    10.6    199 
 Owl Creek                8975    7.0     4.4    159     8.8     4.6    191 
 South Pass               9040   26.2    12.6    208    23.6    14.6    162 
 St. Lawrence Alt         8620    6.9     5.9    117    12.0     7.1    169 
 Togwotee Pass            9580   30.2    19.6    154    34.2    20.8    164 
 Townsend Creek           8700   12.4     7.4    168    15.8     9.4    168 
                                                -----                  -----
                Basin Index (%)                  187                    183 
 

BIGHORN BASIN

 Bald Mtn.                9380   16.4    16.0    102    14.3    14.0    102 
 Bear Trap Meadow         8200    5.0     4.7    106     6.1     6.6     92 
 Bone Springs Div         9350   14.9    13.3    112    14.3    12.6    113 
 Grave Springs            8550    5.8     7.5     77     6.2     8.4     74 
 Kirwin                   9550   17.8     7.9    225    20.5     9.4    218 
 Marquette                8760    7.6      -M       *   11.8      -M       *
 Middle Powder            7760    6.6     8.9     74     6.2     9.4     66 
 Owl Creek                8975    7.0     4.4    159     8.8     4.6    191 
 Powder River Pass        9480    6.8     8.6     79    10.0    10.2     98 
 Shell Creek              9580   14.0    12.3    114    11.0    11.2     98 
 Timber Creek             7950    5.4     4.1    132     6.8     5.6    121 
                                                -----                  -----
                Basin Index (%)                  114                    113 
 

SHOSHONE RIVER

 Blackwater               9780   34.2    19.2    178    37.5    17.3    217 
 Evening Star             9200   34.8    21.1    165    34.9    23.5    149 
 Marquette                8760    7.6      -M       *   11.8      -M       *
 Sylvan Road              7120   15.1    10.0    151    27.8    14.6    190 
 Younts Peak              8350   26.4    12.4    213    28.4    13.5    210 
                                                -----                  -----
                Basin Index (%)                  176                    187 
 

POWDER RIVER

 Bear Trap Meadow         8200    5.0     4.7    106     6.1     6.6     92 
 Cloud Peak Reservoir     9860   11.2    11.9     94    12.5    10.4    120 
 Grave Springs            8550    5.8     7.5     77     6.2     8.4     74 
 Hansen Sawmill           8360    7.3     5.2    140     9.2     6.6    139 
 Middle Powder            7760    6.6     8.9     74     6.2     9.4     66 
 Powder River Pass        9480    6.8     8.6     79    10.0    10.2     98 
 Soldier Park             8720   11.2      -M       *    9.0      -M       *
                                                -----                  -----
                Basin Index (%)                   91                     97 
 

TONGUE RIVER

 Big Goose                7990    8.3     7.0    119     9.2     8.5    108 
 Bone Springs Div         9350   14.9    13.3    112    14.3    12.6    113 
 Burgess Junction         7880    8.2     9.3     88     8.9     9.8     91 
 Dome Lake                8880   12.1     9.4    129    11.8    10.7    110 
 Little Goose             8870    9.0      -M       *   11.5      -M       *
 Sucker Creek             8880    9.8    10.2     96     9.5    11.4     83 
 Tie Creek                6870    5.6     4.7    119     9.7     9.0    108 
                                                -----                  -----
                Basin Index (%)                  109                    102 
 

BELLE FOURCHE

 Cole Canyon              5910    2.8     5.1     55     6.0     7.4     81 
                                                -----                  -----
                Basin Index (%)                   55                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.3     6.9     62     7.1    10.1     70 
 North Rapid Creek        6130    4.9     6.3     78     6.0     8.1     74 
                                                -----                  -----
                Basin Index (%)                   70                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   23.5    17.8    132    23.5    18.9    124 
 Blackhall Mtn            9820   34.8      -M       *   33.7      -M       *
 Columbine                9160   24.0    21.2    113    25.8    21.9    118 
 Divide Peak              8880   18.9    17.0    111    20.9    18.1    115 
 Joe Wright              10120   18.0    18.5     97    25.6    21.6    119 
 Laprele Creek            8375   11.3     8.6    131    10.3    10.2    101 
 Med Bow                 10500   36.2      -M       *   31.1      -M       *
 North French Creek      10130   24.2    23.3    104    24.8    22.6    110 
 Never Summer            10280   21.3    17.1    125    17.2      -M       *
 Old Battle              10000   35.3    25.7    137    36.1    30.0    120 
 Rawah                    9020   11.6     9.3    125    15.0    11.6    129 
 Sage Creek Basin         7850   15.2    11.7    130    15.2    12.5    122 
 Sand Lake               10050   27.9    22.8    122    25.4    20.5    124 
 South Brush Creek        8440   10.8    11.2     96    11.3    12.6     90 
 Tower                   10500   39.7    38.4    103    41.6    34.1    122 
 Webber Springs           9250   28.3    20.2    140    31.5    22.8    138 
 Willow Creek Pass        9540   16.3    10.3    158    17.1    11.1    154 
 Zirkel                   9340   40.1    25.3    158    39.9    24.7    162 
                                                -----                  -----
                Basin Index (%)                  123                    124 
 

SWEETWATER

 Deer Park                9700   28.3    12.2    232    32.1    16.3    197 
 Larsen Creek             9000   19.7    10.5    188    21.0      -M       *
 South Pass               9040   26.2    12.6    208    23.6    14.6    162 
                                                -----                  -----
                Basin Index (%)                  210                    180 
 

LOWER N. PLATTE

 Casper Mtn.              7900   11.0    11.6     95    10.3    12.1     85 
 Laprele Creek            8375   11.3     8.6    131    10.3    10.2    101 
 Reno Hill                8400   11.0    11.3     97    11.5    12.2     94 
 Windy Peak               7900    9.9     6.6    150     9.9     8.6    115 
                                                -----                  -----
                Basin Index (%)                  113                     97 
 

LARAMIE RIVER

 Brooklyn Lake           10240   23.7    17.0    139    21.2    17.5    121 
 Cinnabar Park            9574   18.2    17.8    102    20.5    20.7     99 
 Crow Creek               8330    5.1     7.1     72     7.9     8.5     93 
 Deadman Hill            10220   19.2    13.1    147    18.1    14.1    128 
 Rawah                    9020   11.6     9.3    125    15.0    11.6    129 
 Roach                    9700   15.5    13.5    115    18.3    16.0    114 
                                                -----                  -----
                Basin Index (%)                  120                    114 
 

S. PLATTE

 Black Mountain           8920    9.4      -M       *   10.5      -M       *
 Crow Creek               8330    5.1     7.1     72     7.9     8.5     93 
 Deadman Hill            10220   19.2    13.1    147    18.1    14.1    128 
                                                -----                  -----
                Basin Index (%)                  120                    115 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440   10.2    10.7     95    15.6    13.0    120 
 Divide Peak              8880   18.9    17.0    111    20.9    18.1    115 
 Elk River                8700   20.4    17.0    120    19.1    17.2    111 
 Little Snake River       8915   31.4    20.3    155    36.6    26.0    141 
 Old Battle              10000   35.3    25.7    137    36.1    30.0    120 
 Sage Creek Basin         7850   15.2    11.7    130    15.2    12.5    122 
 Sandstone RS             8150   12.7    11.8    108    15.2    16.0     95 
 Whiskey Park             8950   27.5    23.5    117    28.3    24.0    118 
                                                -----                  -----
                Basin Index (%)                  125                    119 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.9    10.8    184    21.7    11.3    192 
 Blind Bull Sum           8650   40.4    19.6    206      -M    17.0       *
 East Rim Divide          7930   18.6     9.5    196    19.7    10.2    193 
 Elkhart Park G.S.        9400   17.8    10.2    175    22.0    11.3    195 
 Gros Ventre Summit       8750     -M    10.9       *     -M    11.0       *
 Gunsight Pass            9820   19.5    11.6    168    22.0    11.7    188 
 Kendall R.S.             7740   23.3    10.6    220    27.2    12.5    218 
 Loomis Park              8240   26.9    12.8    210    30.3    15.0    202 
 New Fork Lake            8340   16.4     9.1    180    16.2     9.4    172 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   19.5    10.7    182    25.3    12.2    207 
 Spring Creek Divide      9000   36.3    19.7    184      -M    20.5       *
 Triple Peak              8500   35.2    18.7    188    37.4    21.6    173 
                                                -----                  -----
                Basin Index (%)                  191                    193 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869   10.3      -M       *   13.6      -M       *
 Buck Pasture             9632   18.7      -M       *   20.6      -M       *
 EF Blacks Fork GS        9360   15.4      -M       *   11.8      -M       *
 Hams Fork                7840   17.2    10.0    172    18.3     9.7    189 
 Hewinta                  9500   11.9     8.7    137    14.2    11.6    122 
 Hickerson Park           9122    8.1     6.5    125     8.4     8.2    102 
 Hole-in-Rock             9168    6.4     6.2    103     9.1     7.7    118 
 Indian Creek             9425   36.8    20.4    180      -M    19.1       *
 Kelley R.S.              8180   24.1    12.8    188    28.3    15.5    183 
 Spirit Lk               10235   13.8      -M       *   14.7      -M       *
 Steel Creek Park        10158   15.2    12.7    120    17.2    13.4    128 
                                                -----                  -----
                Basin Index (%)                  155                    144 
 

UPPER BEAR RIVER

 Bear River RS            8777   12.4      -M       *   15.4      -M       *
 Bug Lake                 7987   30.4    16.3    187    30.0    16.6    181 
 Burts Miller Ranch       8000    7.0      -M       *    8.3      -M       *
 Chalk Creek #1           9171   31.5    20.2    156    32.1    21.0    153 
 Hayden Fork              9130   22.9    13.6    168      -M    17.6       *
 Kelley R.S.              8180   24.1    12.8    188    28.3    15.5    183 
 Lily Lake                9133   14.6    11.2    130    16.9    14.3    118 
 Monte Cristo             8932   33.5    23.0    146    34.6    22.0    157 
 Salt River Summit        7760   20.4    11.3    181      -M    14.3       *
                                                -----                  -----
                Basin Index (%)                  164                    159 

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


 -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.