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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 7:58p, 8/18/18
Temperature 56.5°F
Wind 3.0 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: NOVEMBER 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    6.0     2.5    240     7.6     4.9    155 
 Black Bear               8170     -M     7.4       *     -M     8.7       *
 Blind Bull Sum           8650   10.3     4.0    258     6.7     4.5    149 
 Cottonwood Creek         7670    4.1     3.1    132     5.7     5.6    102 
 East Rim Divide          7930    3.0     1.5    200     3.8     2.8    136 
 Grand Targhee            9260   16.7     9.1    184    10.4     9.2    113 
 Granite Creek            6770     -M     1.7       *     -M     4.4       *
 Grassy Lake              7265    7.1     4.9    145     9.7     8.0    121 
 Gros Ventre Summit       8750    6.4     3.1    206     5.8     3.5    166 
 Gunsight Pass            9820    5.2     2.7    193     5.8     3.6    161 
 Lewis Lake Divide        7850    9.2     5.5    167    11.5     8.0    144 
 Phillips Bench           8200    7.3     4.1    178     8.2     5.9    139 
 Salt River Summit        7760    2.0     1.4    143     3.7     3.6    103 
 Snake River Station      6920    4.5     2.1    214     7.4     5.4    137 
 Spring Creek Divide      9000    6.6     4.0    165     7.1     5.3    134 
 Thumb Divide             7980    5.7     2.4    238     6.8     4.6    148 
 Togwotee Pass            9580   10.9     5.7    191    10.5     6.0    175 
 Two Ocean Plateau        9240   15.5     7.3    212    10.2     6.7    152 
 Willow Creek             8380    6.9     4.2    164     9.6     7.8    123 
 Younts Peak              8350     -M     3.4       *     -M     4.3       *
                                                -----                  -----
                Basin Index (%)                  188                    137 
 

MADISON-GALLATIN

 Black Bear               8170     -M     7.4       *     -M     8.7       *
 Canyon                   7870     -M     2.3       *     -M     4.0       *
 Madison Plateau          7750    6.9     4.0    172     7.3     5.9    124 
 West Yellowstone         6700     -M     1.4       *     -M     3.5       *
 Whiskey Creek            6800     -M     2.4       *    4.9     4.8    102 
                                                -----                  -----
                Basin Index (%)                  172*                   114*
 

YELLOWSTONE

 Beartooth Lake           9360   11.9     5.3    225    10.2     4.6    222 
 Burnt Mtn                5880     -M      .9       *     -M     4.7       *
 Canyon                   7870     -M     2.3       *     -M     4.0       *
 Cole Creek               7850     -M     3.4       *     -M     4.5       *
 Evening Star             9200   12.9     6.0    215    13.0     6.9    188 
 Fisher Creek             9100   15.1     7.3    207    12.9     7.6    170 
 Northeast Entrance       7350    2.7     1.2    225     5.1     3.5    146 
 Parker Peak              9400   11.6     5.1    227     9.1     4.8    190 
 Sylvan Lake              8420    8.3     4.2    198     8.5     6.1    139 
 Thumb Divide             7980    5.7     2.4    238     6.8     4.6    148 
 Two Ocean Plateau        9240   15.5     7.3    212    10.2     6.7    152 
 White Mill               8700   12.7     5.0    254     8.0     6.0    133 
 Wolverine                7650    3.9     1.3    300     6.2     3.4    182 
                                                -----                  -----
                Basin Index (%)                  222                    166 
 

WIND RIVER

 Burroughs Creek          8750    4.8      -M       *    5.5      -M       *
 Castle Creek             8400    2.3      -M       *    3.7      -M       *
 Cold Springs             9630    2.8     1.9    147     3.6     3.2    112 
 Deer Park                9700    5.2     3.5    149     5.9     4.9    120 
 Hobbs Park              10100    7.5     3.9    192     6.1     3.8    161 
 Kirwin                   9550    7.6     3.0    253     6.0     3.4    176 
 Little Warm              9370    7.0     2.4    292     6.3     3.6    175 
 Owl Creek                8975    1.3     1.4     93     2.8     2.0    140 
 South Pass               9040    4.3     3.2    134     3.6     4.5     80 
 St. Lawrence Alt         8620    1.7     1.7    100     3.7     2.8    132 
 Togwotee Pass            9580   10.9     5.7    191    10.5     6.0    175 
 Townsend Creek           8700    2.8     2.0    140     4.1     3.6    114 
                                                -----                  -----
                Basin Index (%)                  178                    139 
 

BIGHORN BASIN

 Bald Mtn.                9380    6.0     4.9    122     3.9     4.6     85 
 Bear Trap Meadow         8200    2.2     1.2    183     3.3     2.8    118 
 Bone Springs Div         9350    4.2     4.5     93     3.9     4.3     91 
 Grave Springs            8550    1.7     1.5    113     1.9     3.3     58 
 Kirwin                   9550    7.6     3.0    253     6.0     3.4    176 
 Marquette                8760    2.1      -M       *    4.0      -M       *
 Middle Powder            7760    2.1     2.2     95     1.9     3.9     49 
 Owl Creek                8975    1.3     1.4     93     2.8     2.0    140 
 Powder River Pass        9480    5.2     2.4    217     4.7     3.5    134 
 Shell Creek              9580    7.5     4.3    174     4.5     4.0    112 
 Timber Creek             7950    1.4     1.4    100     1.1     3.0     37 
                                                -----                  -----
                Basin Index (%)                  146                     98 
 

SHOSHONE RIVER

 Blackwater               9780   13.4     5.8    231    10.6     5.5    193 
 Evening Star             9200   12.9     6.0    215    13.0     6.9    188 
 Marquette                8760    2.1      -M       *    4.0      -M       *
 Sylvan Road              7120    4.2     1.9    221     6.8     4.8    142 
 Younts Peak              8350     -M     3.4       *     -M     4.3       *
                                                -----                  -----
                Basin Index (%)                  223                    177 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.2     1.2    183     3.3     2.8    118 
 Cloud Peak Reservoir     9860    3.4     3.5     97     4.6     4.2    110 
 Grave Springs            8550    1.7     1.5    113     1.9     3.3     58 
 Hansen Sawmill           8360    2.3     1.3    177     3.4     2.8    121 
 Middle Powder            7760    2.1     2.2     95     1.9     3.9     49 
 Powder River Pass        9480    5.2     2.4    217     4.7     3.5    134 
 Soldier Park             8720    1.5      -M       *    3.5      -M       *
                                                -----                  -----
                Basin Index (%)                  140                     97 
 

TONGUE RIVER

 Big Goose                7990    1.5     2.0     75     2.2     3.6     61 
 Bone Springs Div         9350    4.2     4.5     93     3.9     4.3     91 
 Burgess Junction         7880    1.7     2.6     65     2.5     3.7     68 
 Dome Lake                8880    2.8     3.1     90     3.1     4.3     72 
 Little Goose             8870    1.8      -M       *    3.5      -M       *
 Sucker Creek             8880    2.0     2.9     69     1.3     4.2     31 
 Tie Creek                6870     -M      .6       *    2.5     3.8     66 
                                                -----                  -----
                Basin Index (%)                   81                     65 
 

BELLE FOURCHE

 Cole Canyon              5910     .6      .6    100     2.1     3.2     66 
                                                -----                  -----
                Basin Index (%)                  100                     66 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    1.2     1.4     86     3.1     4.0     78 
 North Rapid Creek        6130    1.4     1.1    127     2.1     3.4     62 
                                                -----                  -----
                Basin Index (%)                  104                     70 
 

UPPER N. PLATTE

 Arapaho Ridge           10960     -M     5.0       *     -M     5.9       *
 Blackhall Mtn            9820    6.5      -M       *    7.1      -M       *
 Columbine                9160    3.3     3.7     89     7.1     5.6    127 
 Divide Peak              8880    3.0     3.7     81     6.0     5.7    105 
 Joe Wright              10120    4.3     5.0     86     9.3     6.8    137 
 Laprele Creek            8375    1.3     2.1     62     2.7     3.6     75 
 Med Bow                 10500    9.3      -M       *    8.2      -M       *
 North French Creek      10130    6.6     5.3    125     7.4     6.4    116 
 Never Summer            10280    5.8     4.3    135     5.8      -M       *
 Old Battle              10000    6.2     6.2    100     6.2     8.3     75 
 Rawah                    9020    2.7     1.9    142     5.9     4.2    140 
 Sage Creek Basin         7850    1.6     1.8     89     3.3     3.8     87 
 Sand Lake               10050    7.8     5.8    134     6.8     6.1    111 
 South Brush Creek        8440    2.9     2.0    145     4.2     4.1    102 
 Tower                   10500     -M     9.4       *     -M     9.5       *
 Webber Springs           9250    3.6     3.9     92     5.8     6.4     91 
 Willow Creek Pass        9540    4.7     3.0    157     5.0     3.8    132 
 Zirkel                   9340    4.1     3.5    117     8.5     7.1    120 
                                                -----                  -----
                Basin Index (%)                  111                    109 
 

SWEETWATER

 Deer Park                9700    5.2     3.5    149     5.9     4.9    120 
 Larsen Creek             9000    2.1     1.8    117     3.7      -M       *
 South Pass               9040    4.3     3.2    134     3.6     4.5     80 
                                                -----                  -----
                Basin Index (%)                  136                    101 
 

LOWER N. PLATTE

 Casper Mtn.              7900    1.9     3.0     63     2.0     4.6     43 
 Laprele Creek            8375    1.3     2.1     62     2.7     3.6     75 
 Reno Hill                8400    2.6     2.8     93     3.7     4.3     86 
 Windy Peak               7900    1.3     1.5     87     2.7     3.1     87 
                                                -----                  -----
                Basin Index (%)                   76                     71 
 

LARAMIE RIVER

 Brooklyn Lake           10240    4.2     4.0    105     5.7     4.9    116 
 Cinnabar Park            9574    6.0     4.1    146     7.7     5.5    140 
 Crow Creek               8330     .8     1.3     62     4.1     3.1    132 
 Deadman Hill            10220    6.8     4.0    170     6.9     4.6    150 
 Rawah                    9020    2.7     1.9    142     5.9     4.2    140 
 Roach                    9700    4.5     3.3    136     6.4     4.8    133 
                                                -----                  -----
                Basin Index (%)                  134                    135 
 

S. PLATTE

 Black Mountain           8920    3.1      -M       *    5.2      -M       *
 Crow Creek               8330     .8     1.3     62     4.1     3.1    132 
 Deadman Hill            10220    6.8     4.0    170     6.9     4.6    150 
                                                -----                  -----
                Basin Index (%)                  143                    143 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .4     1.0     40*    3.2     3.9     82 
 Divide Peak              8880    3.0     3.7     81     6.0     5.7    105 
 Elk River                8700    2.7     2.2    123     5.1     4.8    106 
 Little Snake River       8915    3.5     3.1    113     6.9     7.2     96 
 Old Battle              10000    6.2     6.2    100     6.2     8.3     75 
 Sage Creek Basin         7850    1.6     1.8     89     3.3     3.8     87 
 Sandstone RS             8150    1.3     1.3    100*    2.9     4.5     64 
 Whiskey Park             8950    3.4     3.9     87     6.2     6.1    102 
                                                -----                  -----
                Basin Index (%)                   95                     90 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    3.5     3.2    109     4.0     3.4    118 
 Blind Bull Sum           8650   10.3     4.0    258     6.7     4.5    149 
 East Rim Divide          7930    3.0     1.5    200     3.8     2.8    136 
 Elkhart Park G.S.        9400    3.4     2.7    126     3.6     3.5    103 
 Gros Ventre Summit       8750    6.4     3.1    206     5.8     3.5    166 
 Gunsight Pass            9820    5.2     2.7    193     5.8     3.6    161 
 Kendall R.S.             7740    4.0     2.0    200     4.8     3.4    141 
 Loomis Park              8240    4.6     2.3    200     5.3     3.9    136 
 New Fork Lake            8340    2.8     1.8    156     2.4     2.9     83 
 Pocket Creek             9360    4.2      -M       *    3.9      -M       *
 Snider Basin             8060    2.6     2.0    130     4.2     3.2    131 
 Spring Creek Divide      9000    6.6     4.0    165     7.1     5.3    134 
 Triple Peak              8500    7.1     4.1    173     9.0     5.5    164 
                                                -----                  -----
                Basin Index (%)                  178                    137 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    1.8      -M       *    2.5      -M       *
 Buck Pasture             9632    2.9      -M       *    3.5      -M       *
 EF Blacks Fork GS        9360    2.0      -M       *    2.7      -M       *
 Hams Fork                7840    1.5     1.7     88     2.8     2.8    100 
 Hewinta                  9500    1.1     1.4     79     2.9     3.9     74 
 Hickerson Park           9122    2.0     1.3    154     1.7     3.4     50 
 Hole-in-Rock             9168    1.7     1.3    131     2.0     3.2     62 
 Indian Creek             9425    5.7     4.8    119     4.8     4.8    100 
 Kelley R.S.              8180    3.2     2.4    133     3.8     4.1     93 
 Spirit Lk               10235    2.1      -M       *    2.3      -M       *
 Steel Creek Park        10158    3.7     3.3    112     3.7     4.4     84 
                                                -----                  -----
                Basin Index (%)                  117                     82 
 

UPPER BEAR RIVER

 Bear River RS            8777    1.6      -M       *    2.8      -M       *
 Bug Lake                 7987    3.2     2.7    119     5.1     4.6    111 
 Burts Miller Ranch       8000    1.2      -M       *    1.8      -M       *
 Chalk Creek #1           9171    3.7     4.0     92     4.4     6.3     70 
 Hayden Fork              9130    2.5     2.3    109     3.7     5.2     71 
 Kelley R.S.              8180    3.2     2.4    133     3.8     4.1     93 
 Lily Lake                9133    2.0     2.3     87     2.8     4.6     61 
 Monte Cristo             8932    5.3     3.8    139     5.4     5.9     92 
 Salt River Summit        7760    2.0     1.4    143     3.7     3.6    103 
                                                -----                  -----
                Basin Index (%)                  116                     84 

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


 -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.