Home
Interactive Maps
WY Weather
WY Climate
Drought
Data/Products
CoCoRaHS
Library
Articles & Publications
Education & Outreach
Site Map
Cooperative Projects
Water Links
Contact Us

Subscribe to our mailing list

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 2:18a, 5/22/18
Temperature 50.1°F
Wind 0.0 mph


Share this page
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: DECEMBER 31 , 2016
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   10.4     7.1    146    18.1     9.9    183 
 Black Bear               8170   15.8    17.5     90    25.2    17.7    142 
 Blind Bull Sum           8650   13.7     9.0    152    15.1     9.2    164 
 Cottonwood Creek         7670    9.7     8.3    117    16.7    11.0    152 
 East Rim Divide          7930    7.1     4.3    165     9.6     5.4    178 
 Grand Targhee            9260   23.5    17.5    134    22.3    14.7    152 
 Granite Creek            6770    9.6     6.4    150    15.9     9.3    171 
 Grassy Lake              7265   15.4    12.5    123    27.2    16.8    162 
 Gros Ventre Summit       8750    6.4     6.1    105    10.7     6.1    175 
 Gunsight Pass            9820    7.1     6.0    118    11.4     6.4    178 
 Lewis Lake Divide        7850   12.5    13.1     95    24.2    16.6    146 
 Phillips Bench           8200   11.5    10.8    106    20.9    12.7    165 
 Salt River Summit        7760    5.4     4.8    112    11.4     7.4    154 
 Snake River Station      6920    9.9     6.2    160    18.7    10.9    172 
 Spring Creek Divide      9000   12.2    10.0    122    17.7    10.7    165 
 Thumb Divide             7980    6.6     6.1    108    12.5     8.7    144 
 Togwotee Pass            9580   13.9    11.0    126    17.6    11.4    154 
 Two Ocean Plateau        9240   17.9    12.4    144    19.2    12.5    154 
 Willow Creek             8380   11.3    10.6    107    22.3    15.4    145 
 Younts Peak              8350    8.1     7.0    116    12.8     7.6    168 
                                                -----                  -----
                Basin Index (%)                  122                    159 
 

MADISON-GALLATIN

 Black Bear               8170   15.8    17.5     90    25.2    17.7    142 
 Canyon                   7870    6.7     5.3    126    12.9     7.8    165 
 Madison Plateau          7750    9.2    10.2     90    18.9    12.2    155 
 West Yellowstone         6700    5.5     4.6    120    12.9     7.0    184 
 Whiskey Creek            6800    6.0     6.5     92    13.9     9.6    145 
                                                -----                  -----
                Basin Index (%)                   98                    154 
 

YELLOWSTONE

 Beartooth Lake           9360   11.9     9.9    120      -M     9.1       *
 Burnt Mtn                5880    3.7     1.8    206     7.5     6.7    112 
 Canyon                   7870    6.7     5.3    126    12.9     7.8    165 
 Cole Creek               7850    5.2     6.3     83     4.6     6.3     73 
 Evening Star             9200   14.2    11.2    127    20.2    13.1    154 
 Fisher Creek             9100   13.5    14.5     93    18.9    14.8    128 
 Northeast Entrance       7350    4.5     4.0    112     9.9     6.1    162 
 Parker Peak              9400   12.3     9.7    127    15.4     8.4    183 
 Sylvan Lake              8420    9.5     9.1    104    19.9    11.1    179 
 Thumb Divide             7980    6.6     6.1    108    12.5     8.7    144 
 Two Ocean Plateau        9240   17.9    12.4    144    19.2    12.5    154 
 White Mill               8700   11.3     9.8    115    14.7    11.2    131 
 Wolverine                7650    7.3     4.7    155    10.6     6.2    171 
                                                -----                  -----
                Basin Index (%)                  119                    147 
 

WIND RIVER

 Burroughs Creek          8750    8.2      -M       *   10.9      -M       *
 Castle Creek             8400    4.8      -M       *    7.0      -M       *
 Cold Springs             9630    4.2     3.1    135     6.7     4.9    137 
 Deer Park                9700    9.7     6.6    147    13.7     8.7    157 
 Hobbs Park              10100    8.1     6.5    125     8.8     6.1    144 
 Kirwin                   9550    6.8     4.3    158     9.9     5.6    177 
 Little Warm              9370    4.2     4.4     95     9.0     6.1    148 
 Owl Creek                8975    2.6     2.5    104     4.1     2.9    141 
 South Pass               9040    9.2     6.6    139     9.6     8.2    117 
 St. Lawrence Alt         8620    1.8     3.0     60     5.6     4.3    130 
 Togwotee Pass            9580   13.9    11.0    126    17.6    11.4    154 
 Townsend Creek           8700    4.0     4.1     98     6.9     5.8    119 
                                                -----                  -----
                Basin Index (%)                  124                    144 
 

BIGHORN BASIN

 Bald Mtn.                9380   10.4     8.3    125     9.1     7.8    117 
 Bear Trap Meadow         8200    2.3     2.5     92     3.7     4.2     88 
 Bone Springs Div         9350    7.6     7.2    106     8.3     7.1    117 
 Grave Springs            8550    2.9     3.3     88     4.2     5.1     82 
 Kirwin                   9550    6.8     4.3    158     9.9     5.6    177 
 Marquette                8760    3.5      -M       *    6.7      -M       *
 Middle Powder            7760    3.7     4.9     76     3.9     6.0     65 
 Owl Creek                8975    2.6     2.5    104     4.1     2.9    141 
 Powder River Pass        9480    2.6     4.7     55     5.3     5.9     90 
 Shell Creek              9580    8.5     7.2    118     7.0     6.5    108 
 Timber Creek             7950    2.9     2.1    138     4.3     3.9    110 
                                                -----                  -----
                Basin Index (%)                  107                    109 
 

SHOSHONE RIVER

 Blackwater               9780   15.2    10.4    146    18.9     9.8    193 
 Evening Star             9200   14.2    11.2    127    20.2    13.1    154 
 Marquette                8760    3.5      -M       *    6.7      -M       *
 Sylvan Road              7120    6.8     5.3    128    16.6     8.9    187 
 Younts Peak              8350    8.1     7.0    116    12.8     7.6    168 
                                                -----                  -----
                Basin Index (%)                  131                    174 
 

POWDER RIVER

 Bear Trap Meadow         8200    2.3     2.5     92     3.7     4.2     88 
 Cloud Peak Reservoir     9860    5.5     6.2     89     7.5     6.2    121 
 Grave Springs            8550    2.9     3.3     88     4.2     5.1     82 
 Hansen Sawmill           8360    3.4     3.0    113     5.2     4.0    130 
 Middle Powder            7760    3.7     4.9     76     3.9     6.0     65 
 Powder River Pass        9480    2.6     4.7     55     5.3     5.9     90 
 Soldier Park             8720    6.1      -M       *    5.8      -M       *
                                                -----                  -----
                Basin Index (%)                   83                     95 
 

TONGUE RIVER

 Big Goose                7990    4.4     3.6    122     5.3     5.3    100 
 Bone Springs Div         9350    7.6     7.2    106     8.3     7.1    117 
 Burgess Junction         7880    4.2     4.7     89     5.5     5.8     95 
 Dome Lake                8880    5.1     5.4     94     6.6     6.7     99 
 Little Goose             8870    4.7      -M       *    6.8      -M       *
 Sucker Creek             8880    5.1     5.1    100     5.7     6.7     85 
 Tie Creek                6870    3.1     2.0    155     6.0     5.5    109 
                                                -----                  -----
                Basin Index (%)                  105                    101 
 

BELLE FOURCHE

 Cole Canyon              5910    2.7     2.2    123     3.8     4.6     83 
                                                -----                  -----
                Basin Index (%)                  123                     83 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    3.2     3.2    100     4.8     6.0     80 
 North Rapid Creek        6130    3.5     3.2    109     3.7     5.0     74 
                                                -----                  -----
                Basin Index (%)                  105                     77 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   11.4     9.3    123    12.9    10.8    119 
 Blackhall Mtn            9820   12.7      -M       *   14.9      -M       *
 Columbine                9160   10.7     8.7    123    13.0    11.4    114 
 Divide Peak              8880    6.4     8.4     76     9.2    10.3     89 
 Joe Wright              10120    7.6     9.4     81    13.1    12.0    109 
 Laprele Creek            8375    4.4     3.9    113     4.6     5.9     78 
 Med Bow                 10500   16.4      -M       *   16.7      -M       *
 North French Creek      10130   10.0    11.5     87    11.9    12.0     99 
 Never Summer            10280     -M     8.6       *     -M      -M       *
 Old Battle              10000   11.8    12.4     95    13.8    16.2     85 
 Rawah                    9020    5.4     4.3    126     8.1     7.3    111 
 Sage Creek Basin         7850    5.0     5.7     88     6.3     7.4     85 
 Sand Lake               10050   11.3    11.6     97    11.2    11.1    101 
 South Brush Creek        8440    4.0     4.7     85     5.6     7.1     79 
 Tower                   10500   14.7    18.5     79    18.5    18.2    102 
 Webber Springs           9250    9.1     9.4     97    12.6    12.4    102 
 Willow Creek Pass        9540    7.4     5.4    137     8.7     6.5    134 
 Zirkel                   9340   12.5     9.8    128    16.2    13.5    120 
                                                -----                  -----
                Basin Index (%)                   99                    102 
 

SWEETWATER

 Deer Park                9700    9.7     6.6    147    13.7     8.7    157 
 Larsen Creek             9000    7.2     4.8    150    11.3      -M       *
 South Pass               9040    9.2     6.6    139     9.6     8.2    117 
                                                -----                  -----
                Basin Index (%)                  145                    138 
 

LOWER N. PLATTE

 Casper Mtn.              7900    5.1     5.8     88     5.5     7.4     74 
 Laprele Creek            8375    4.4     3.9    113     4.6     5.9     78 
 Reno Hill                8400     -M     5.7       *     -M     7.0       *
 Windy Peak               7900    3.4     3.1    110     4.4     5.1     86 
                                                -----                  -----
                Basin Index (%)                  101                     79 
 

LARAMIE RIVER

 Brooklyn Lake           10240    8.7     7.8    112     8.9     9.2     97 
 Cinnabar Park            9574    7.7     8.9     87    10.4    11.4     91 
 Crow Creek               8330    2.2     4.4     50     4.1     5.4     76 
 Deadman Hill            10220    8.2     7.2    114     8.3     7.7    108 
 Rawah                    9020    5.4     4.3    126     8.1     7.3    111 
 Roach                    9700    5.8     6.9     84     7.5     8.9     84 
                                                -----                  -----
                Basin Index (%)                   96                     95 
 

S. PLATTE

 Black Mountain           8920    4.4      -M       *    5.6      -M       *
 Crow Creek               8330    2.2     4.4     50     4.1     5.4     76 
 Deadman Hill            10220    8.2     7.2    114     8.3     7.7    108 
                                                -----                  -----
                Basin Index (%)                   90                     95 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    4.1     4.0    102      -M     6.9       *
 Divide Peak              8880    6.4     8.4     76     9.2    10.3     89 
 Elk River                8700    8.4     6.6    127     9.6     9.0    107 
 Little Snake River       8915   11.7     8.9    131    16.9    14.6    116 
 Old Battle              10000   11.8    12.4     95    13.8    16.2     85 
 Sage Creek Basin         7850    5.0     5.7     88     6.3     7.4     85 
 Sandstone RS             8150    5.1     4.3    119     5.7     8.4     68 
 Whiskey Park             8950   10.1     9.4    107    13.4    12.0    112 
                                                -----                  -----
                Basin Index (%)                  105                     96 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080    8.6     5.8    148    11.3     6.2    182 
 Blind Bull Sum           8650   13.7     9.0    152    15.1     9.2    164 
 East Rim Divide          7930    7.1     4.3    165     9.6     5.4    178 
 Elkhart Park G.S.        9400    5.9     5.7    104    11.3     6.3    179 
 Gros Ventre Summit       8750    6.4     6.1    105    10.7     6.1    175 
 Gunsight Pass            9820    7.1     6.0    118    11.4     6.4    178 
 Kendall R.S.             7740    7.7     4.8    160    12.0     6.5    185 
 Loomis Park              8240    9.6     6.5    148    14.9     8.0    186 
 New Fork Lake            8340    6.4     4.5    142     7.3     5.1    143 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060    6.4     5.1    125    11.7     6.5    180 
 Spring Creek Divide      9000   12.2    10.0    122    17.7    10.7    165 
 Triple Peak              8500   14.1     8.2    172    19.0    10.9    174 
                                                -----                  -----
                Basin Index (%)                  138                    174 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    4.8      -M       *    6.6      -M       *
 Buck Pasture             9700    6.9      -M       *   10.0      -M       *
 EF Blacks Fork GS        9360    6.9      -M       *    6.1      -M       *
 Hams Fork                7840    5.2     4.5    116     8.8     5.1    173 
 Hewinta                  9519    4.8     3.7    130     7.0     6.4    109 
 Hickerson Park           9145    4.3     2.8    154     4.7     4.9     96 
 Hole-in-Rock             9150    3.1     2.9    107     5.0     4.6    109 
 Indian Creek             9425   11.6    10.0    116    16.1     9.8    164 
 Kelley R.S.              8180    8.2     6.1    134    13.7     8.3    165 
 Spirit Lk               10235    6.5      -M       *    8.6      -M       *
 Steel Creek Park        10200    7.0     6.2    113     8.8     7.4    119 
                                                -----                  -----
                Basin Index (%)                  122                    138 
 

UPPER BEAR RIVER

 Bear River RS            8777    4.6      -M       *    6.7      -M       *
 Bug Lake                 7950     -M     6.2       *   11.9     8.9    134 
 Burts Miller Ranch       8000    2.2      -M       *    3.4      -M       *
 Chalk Creek #1           8993   10.4     9.6    108    12.9    11.4    113 
 Hayden Fork              9212    7.8     5.8    134    12.2     9.5    128 
 Kelley R.S.              8180    8.2     6.1    134    13.7     8.3    165 
 Lily Lake                9156    5.2     5.1    102     7.8     7.9     99 
 Monte Cristo             8960   10.3    10.0    103    14.0    11.6    121 
 Salt River Summit        7760    5.4     4.8    112    11.4     7.4    154 
                                                -----                  -----
                Basin Index (%)                  114                    129 

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


 -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.