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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 3:28p, 5/22/18
Temperature 65.0°F
Wind 9.0 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 MONDAY: FEBRUARY 5 , 2018
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7060   13.1    11.0    119    14.7    14.4    102 
 Black Bear               8170   28.6    23.7    121    27.4    25.5    107 
 Blind Bull Sum           8650   23.2    14.5    160    14.0    13.2    106 
 Cottonwood Creek         7670   14.9    13.6    110    16.9    16.3    104 
 East Rim Divide          7930    8.2     6.9    119     8.1     7.9    103 
 Grand Targhee            9260   34.7    24.1    144    22.1    21.3    104 
 Granite Creek            6770   12.3    11.0    112    14.8    14.0    106 
 Grassy Lake              7265   21.3    21.0    101    24.6    24.6    100 
 Gros Ventre Summit       8750    9.8     8.6    114     9.3     8.4    111 
 Gunsight Pass            9820   10.8     8.5    127    11.0     9.2    120 
 Lewis Lake Divide        7850   25.5    20.4    125    26.9    23.7    114 
 Phillips Bench           8200   16.4    16.1    102    17.4    18.7     93 
 Salt River Summit        7640    6.7     8.2     82     8.5    10.9     78 
 Snake River Station      6920   13.1    11.4    115    17.3    15.9    109 
 Spring Creek Divide      9000   17.6    15.1    117    17.0    15.9    107 
 Thumb Divide             7980   12.8     9.6    133    13.4    12.4    108 
 Togwotee Pass            9580   21.6    15.3    141    21.9    16.2    135 
 Two Ocean Plateau        9240   27.1    18.3    148    19.8    17.7    112 
 Willow Creek             8080   21.3    17.8    120    23.9    22.2    108 
 Younts Peak              8350     -M    10.0       *     -M    10.8       *
                                                -----                  -----
                Basin Index (%)                  123                    107 
 

MADISON-GALLATIN

 Black Bear               8170   28.6    23.7    121    27.4    25.5    107 
 Canyon                   7870   11.7     8.4    139    13.5    11.0    123 
 Madison Plateau          7750   17.6    14.3    123    18.3    17.7    103 
 West Yellowstone         6700    8.9     7.1    125    11.6     9.9    117 
 Whiskey Creek            6800   10.7     9.7    110    12.5    13.6     92 
                                                -----                  -----
                Basin Index (%)                  123                    107 
 

YELLOWSTONE

 Beartooth Lake           9360   27.4    14.3    192    25.0    13.2    189 
 Burnt Mtn                5880    4.0     2.6    154     9.6     8.1    119 
 Canyon                   7870   11.7     8.4    139    13.5    11.0    123 
 Cole Creek               7850    9.8     8.6    114     6.4     7.8     82 
 Evening Star             9200   28.3    16.7    169    29.8    18.4    162 
 Fisher Creek             9100   36.5    21.3    171    31.0    21.3    146 
 Northeast Entrance       7350    9.0     6.6    136    12.5     8.5    147 
 Parker Peak              9400   23.4    13.4    175    20.3    11.7    174 
 Sylvan Lake              8420   16.7    13.4    125    18.7    15.2    123 
 Thumb Divide             7980   12.8     9.6    133    13.4    12.4    108 
 Two Ocean Plateau        9240   27.1    18.3    148    19.8    17.7    112 
 White Mill               8700   28.8    15.0    192    21.0    15.9    132 
 Wolverine                7650   13.5     7.2    188      -M     8.4       *
                                                -----                  -----
                Basin Index (%)                  160                    137 
 

WIND RIVER

 Burroughs Creek          8750   11.4      -M       *   13.2      -M       *
 Castle Creek             8400    6.2      -M       *    7.6      -M       *
 Cold Springs             9630    6.7     4.8    140     6.8     6.4    106 
 Deer Park                9700    7.5     9.5     79     9.7    12.6     77 
 Hobbs Park              10100   11.4     8.0    142     9.5     8.0    119 
 Kirwin                   9550   14.0     6.0    233    12.6     7.4    170 
 Little Warm              9370   11.4     6.6    173    11.5     8.4    137 
 Owl Creek                8975    3.1     3.1    100     4.8     3.6    133 
 South Pass               9040    7.6     9.7     78     5.3    11.2     47 
 St. Lawrence Alt         8620    2.7     4.2     64     6.1     5.5    111 
 Togwotee Pass            9580   21.6    15.3    141    21.9    16.2    135 
 Townsend Creek           8700    5.0     5.4     93     6.4     7.3     88 
                                                -----                  -----
                Basin Index (%)                  125                    109 
 

BIGHORN BASIN

 Bald Mtn.                9380   14.3    11.0    130     9.7    11.0     88 
 Bear Trap Meadow         8200    6.2     3.5    177     6.9     5.3    130 
 Bone Springs Div         9350   12.7     9.9    128     9.5     9.8     97 
 Grave Springs            8550    4.4     5.0     88     3.7     6.6     56 
 Kirwin                   9550   14.0     6.0    233    12.6     7.4    170 
 Marquette                8760    4.2      -M       *    7.6      -M       *
 Middle Powder            7760    5.8     6.5     89     4.2     7.6     55 
 Owl Creek                8975    3.1     3.1    100     4.8     3.6    133 
 Powder River Pass        9480   11.9     6.8    175      -M     8.1       *
 Shell Creek              9580     -M     9.3       *   10.9     9.1    120 
 Timber Creek             7950    2.5     3.1     81     1.6     4.6     35 
                                                -----                  -----
                Basin Index (%)                  136                     98 
 

SHOSHONE RIVER

 Blackwater               9780   24.6    15.0    164    22.3    13.6    164 
 Evening Star             9200   28.3    16.7    169    29.8    18.4    162 
 Marquette                8760    4.2      -M       *    7.6      -M       *
 Sylvan Road              7120   10.7     7.9    135    15.3    12.1    126 
 Younts Peak              8350     -M    10.0       *     -M    10.8       *
                                                -----                  -----
                Basin Index (%)                  161                    153 
 

POWDER RIVER

 Bear Trap Meadow         8200    6.2     3.5    177     6.9     5.3    130 
 Cloud Peak Reservoir     9860   10.7     8.6    124     9.6     8.1    119 
 Grave Springs            8550    4.4     5.0     88     3.7     6.6     56 
 Hansen Sawmill           8360    5.4     4.0    135     6.6     5.2    127 
 Middle Powder            7760    5.8     6.5     89     4.2     7.6     55 
 Powder River Pass        9480   11.9     6.8    175      -M     8.1       *
 Soldier Park             8720    3.9      -M       *    6.5      -M       *
                                                -----                  -----
                Basin Index (%)                  129                     95 
 

TONGUE RIVER

 Big Goose                7990    4.9     5.0     98     5.3     6.7     79 
 Bone Springs Div         9350   12.7     9.9    128     9.5     9.8     97 
 Burgess Junction         7880    6.1     6.8     90     5.2     7.7     68 
 Dome Lake                8880    8.8     7.0    126     7.4     8.6     86 
 Little Goose             8870    5.9      -M       *    8.0      -M       *
 Sucker Creek             8880    6.6     7.3     90      -M     8.9       *
 Tie Creek                6870    2.6     3.5     74     5.8     7.3     79 
                                                -----                  -----
                Basin Index (%)                  106                     83 
 

BELLE FOURCHE

 Cole Canyon              5910    4.4     3.4    129     6.1     5.8    105 
                                                -----                  -----
                Basin Index (%)                  129                    105 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    5.2     5.0    104     7.5     8.0     94 
 North Rapid Creek        6130    5.2     4.4    118     5.5     6.5     85 
                                                -----                  -----
                Basin Index (%)                  111                     90 
 

UPPER N. PLATTE

 Arapaho Ridge           10960     -M    13.5       *     -M    14.6       *
 Blackhall Mtn            9820   17.3      -M       *   17.3      -M       *
 Columbine                9160   13.2    15.2     87    15.5    16.8     92 
 Divide Peak              8880    8.8    12.8     69    12.2    14.0     87 
 Joe Wright              10120   10.4    13.2     79    18.4    16.5    112 
 Laprele Creek            8375    4.4     5.6     79     5.9     7.7     77 
 Med Bow                 10500   28.1      -M       *   23.7      -M       *
 North French Creek      10130   18.4    16.4    112    18.6    17.3    108 
 Never Summer            10280   11.6    12.9     90     9.6      -M       *
 Old Battle              10000   16.2    19.8     82    15.9    23.1     69 
 Rawah                    9020    6.8     6.5    105    10.0     9.3    108 
 Sage Creek Basin         7850    6.1     8.8     69     7.2    10.1     71 
 Sand Lake               10050   17.6    16.9    104    14.3    15.5     92 
 South Brush Creek        8440    6.6     7.5     88     8.0     9.8     82 
 Tower                   10500   20.3    28.5     71    21.0    26.2     80 
 Webber Springs           9250   11.8    14.6     81    14.0    17.5     80 
 Willow Creek Pass        9540    8.4     7.9    106     9.2     8.5    108 
 Zirkel                   9340   15.3    19.1     80    20.0    19.7    102 
                                                -----                  -----
                Basin Index (%)                   86                     90 
 

SWEETWATER

 Deer Park                9700    7.5     9.5     79     9.7    12.6     77 
 Larsen Creek             9000    6.6     7.6     87     7.8      -M       *
 South Pass               9040    7.6     9.7     78     5.3    11.2     47 
                                                -----                  -----
                Basin Index (%)                   81                     63 
 

LOWER N. PLATTE

 Casper Mtn.              7900    5.2     7.8     67      -M     9.3       *
 Laprele Creek            8375    4.4     5.6     79     5.9     7.7     77 
 Reno Hill                8400    6.7     7.9     85     7.7     9.2     84 
 Windy Peak               7900    4.2     4.3     98     5.7     6.5     88 
                                                -----                  -----
                Basin Index (%)                   80                     82 
 

LARAMIE RIVER

 Brooklyn Lake           10240   16.7    12.1    138    17.2    13.3    129 
 Cinnabar Park            9574     -M    13.6       *     -M    16.6       *
 Crow Creek               8330    1.8     5.7     32     7.5     6.5    115 
 Deadman Hill            10220   12.7    10.4    122    12.4    10.5    118 
 Rawah                    9020    6.8     6.5    105    10.0     9.3    108 
 Roach                    9700    9.2    10.3     89    11.8    12.1     98 
                                                -----                  -----
                Basin Index (%)                  105                    114 
 

S. PLATTE

 Black Mountain           8920    6.0      -M       *    8.6      -M       *
 Crow Creek               8330    1.8     5.7     32     7.5     6.5    115 
 Deadman Hill            10220   12.7    10.4    122    12.4    10.5    118 
                                                -----                  -----
                Basin Index (%)                   90                    117 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    3.3     7.3     45     6.6     9.9     67 
 Divide Peak              8880    8.8    12.8     69    12.2    14.0     87 
 Elk River                8700    9.0    11.9     76    10.1    13.2     77 
 Little Snake River       8915   13.3    16.1     83    18.5    21.4     86 
 Old Battle              10000   16.2    19.8     82    15.9    23.1     69 
 Sage Creek Basin         7850    6.1     8.8     69     7.2    10.1     71 
 Sandstone RS             8150    5.4     8.3     65     5.5    12.3     45 
 Whiskey Park             8950   14.3    16.8     85    16.9    18.4     92 
                                                -----                  -----
                Basin Index (%)                   75                     76 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    8.7     8.5    102     8.7     8.6    101 
 Blind Bull Sum           8650   23.2    14.5    160    14.0    13.2    106 
 East Rim Divide          7930    8.2     6.9    119     8.1     7.9    103 
 Elkhart Park G.S.        9400    8.5     7.7    110     7.9     8.7     91 
 Gros Ventre Summit       8750    9.8     8.6    114     9.3     8.4    111 
 Gunsight Pass            9820   10.8     8.5    127    11.0     9.2    120 
 Kendall R.S.             7740    9.9     7.8    127    10.6     9.5    112 
 Loomis Park              8240   11.2     9.8    114    12.1    11.6    104 
 New Fork Lake            8340    8.2     6.8    121     7.2     7.3     99 
 Pocket Creek             9360    6.2      -M       *    6.0      -M       *
 Snider Basin             8060    8.5     7.9    108    10.1     9.5    106 
 Spring Creek Divide      9000   17.6    15.1    117    17.0    15.9    107 
 Triple Peak              8500   19.3    13.5    143    21.3    16.5    129 
                                                -----                  -----
                Basin Index (%)                  124                    109 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    4.8      -M       *    6.0      -M       *
 Buck Pasture             9632    7.4      -M       *    8.1      -M       *
 EF Blacks Fork GS        9360    5.4      -M       *    4.3      -M       *
 Hams Fork                7840    5.6     7.4     76     6.0     7.5     80 
 Hewinta                  9500    5.0     6.1     82     7.4     8.9     83 
 Hickerson Park           9122    4.4     3.9    113     4.2     6.3     67 
 Hole-in-Rock             9168    3.9     4.1     95     4.5     5.9     76 
 Indian Creek             9425   13.7    14.8     93    10.2    14.5     70 
 Kelley R.S.              8180    8.3     9.3     89     9.3    11.9     78 
 Spirit Lk               10235    5.0      -M       *    5.8      -M       *
 Steel Creek Park        10158    7.8     9.0     87     8.7    10.3     84 
                                                -----                  -----
                Basin Index (%)                   89                     77 
 

UPPER BEAR RIVER

 Bear River RS            8777    5.5      -M       *    7.1      -M       *
 Bug Lake                 7987    9.6    11.6     83    10.4    12.8     81 
 Burts Miller Ranch       8000    4.0      -M       *    4.6      -M       *
 Chalk Creek #1           9171    9.1    13.5     67    10.0    16.1     62 
 Hayden Fork              9130    7.6     8.9     85     9.8    13.5     73 
 Kelley R.S.              8180    8.3     9.3     89     9.3    11.9     78 
 Lily Lake                9133    6.8     7.6     89     7.2    11.0     65 
 Monte Cristo             8932   12.4    16.2     77    12.6    16.8     75 
 Salt River Summit        7640    6.7     8.2     82     8.5    10.9     78 
                                                -----                  -----
                Basin Index (%)                   80                     73 

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


 -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.