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 11:08p, 11/13/18
Temperature 27.0°F
Wind 1.0 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 WEDNESDAY: APRIL 19 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   21.8    12.0    182    40.3    21.7    186 
 Black Bear               8170   48.2    36.8    131    56.1    39.6    142 
 Blind Bull Sum           8650   44.3    24.0    185      -M    20.1       *
 Cottonwood Creek         7670   27.1    18.8    144    39.8    25.7    155 
 East Rim Divide          7930   12.7     9.6    132    21.5    12.2    176 
 Grand Targhee            9260   49.7    41.9    119    44.4    32.4    137 
 Granite Creek            6770   23.5    11.1    212    36.6    20.2    181 
 Grassy Lake              7265   37.8    31.5    120    57.1    37.2    153 
 Gros Ventre Summit       8750   20.6    13.2    156    25.0    13.6    184 
 Gunsight Pass            9820   23.7    13.6    174    25.9    14.8    175 
 Lewis Lake Divide        7850   46.6    30.3    154    57.2    36.6    156 
 Phillips Bench           8200   38.5    25.7    150    47.7    29.0    164 
 Salt River Summit        7760   18.1    10.0    181    29.9    17.3    173 
 Snake River Station      6920   15.8    11.5    137    37.2    23.4    159 
 Spring Creek Divide      9000   42.0    23.5    179    41.4    24.6    168 
 Thumb Divide             7980   21.5    14.5    148    29.0    19.6    148 
 Togwotee Pass            9580   34.2    23.7    144    39.9    25.5    156 
 Two Ocean Plateau        9240     -M    27.9       *     -M    28.4       *
 Willow Creek             8380   27.9    26.8    104    52.1    35.1    148 
 Younts Peak              8350   25.3    15.1    168    32.0    16.6    193 
                                                -----                  -----
                Basin Index (%)                  147                    160 
 

MADISON-GALLATIN

 Black Bear               8170   48.2    36.8    131    56.1    39.6    142 
 Canyon                   7870   17.8    12.3    145    26.4    16.9    156 
 Madison Plateau          7750   28.2    22.9    123    37.8    27.4    138 
 West Yellowstone         6700    3.0     7.8     38    24.1    15.0    161 
 Whiskey Creek            6800   13.1    15.2     86    27.7    21.1    131 
                                                -----                  -----
                Basin Index (%)                  116                    143 
 

YELLOWSTONE

 Beartooth Lake           9360   33.7    23.2    145    28.8    20.6    140 
 Burnt Mtn                5880     .1      .0       *   15.0    14.1    106 
 Canyon                   7870   17.8    12.3    145    26.4    16.9    156 
 Cole Creek               7850   11.9    16.1     74     9.5    14.4     66 
 Evening Star             9200   39.2    24.9    157    46.1    28.6    161 
 Fisher Creek             9100   44.6    32.3    138    48.8    33.2    147 
 Northeast Entrance       7350    4.5     7.0     64    21.1    12.9    164 
 Parker Peak              9400   37.8    20.8    182    35.8    18.6    192 
 Sylvan Lake              8420   24.8    20.4    122    38.8    23.4    166 
 Thumb Divide             7980   21.5    14.5    148    29.0    19.6    148 
 Two Ocean Plateau        9240     -M    27.9       *     -M    28.4       *
 White Mill               8700   37.9    23.6    161    37.1    24.8    150 
 Wolverine                7650    3.5     7.5     47    21.5    12.8    168 
                                                -----                  -----
                Basin Index (%)                  137                    149 
 

WIND RIVER

 Burroughs Creek          8750   21.4      -M       *   28.1      -M       *
 Castle Creek             8400    8.4      -M       *   16.1      -M       *
 Cold Springs             9630   15.9     4.9    324    20.5    10.8    190 
 Deer Park                9700   33.2    16.2    205    39.2    21.3    184 
 Hobbs Park              10100   30.3    14.8    205    29.4    14.7    200 
 Kirwin                   9550   23.0    10.0    230    26.0    12.3    211 
 Little Warm              9370   18.8    10.2    184    25.5    13.8    185 
 Owl Creek                8975    8.7     4.2    207    13.5     6.7    201 
 South Pass               9040   31.7    15.6    203    29.3    18.5    158 
 St. Lawrence Alt         8620    8.0     5.4    148    17.9     9.8    183 
 Togwotee Pass            9580   34.2    23.7    144    39.9    25.5    156 
 Townsend Creek           8700   17.6     9.6    183    23.9    13.1    182 
                                                -----                  -----
                Basin Index (%)                  193                    181 
 

BIGHORN BASIN

 Bald Mtn.                9380   20.7    19.7    105    18.1    18.1    100 
 Bear Trap Meadow         8200    3.6     3.5    103     9.7     9.3    104 
 Bone Springs Div         9350   20.8    16.2    128    19.0    16.6    114 
 Grave Springs            8550    7.0     9.6     73     8.8    11.5     77 
 Kirwin                   9550   23.0    10.0    230    26.0    12.3    211 
 Marquette                8760   14.3      -M       *   18.2      -M       *
 Middle Powder            7760    8.6    12.5     69     8.6    12.7     68 
 Owl Creek                8975    8.7     4.2    207    13.5     6.7    201 
 Powder River Pass        9480    8.9    10.2     87    14.6    13.6    107 
 Shell Creek              9580   18.5    15.3    121    16.1    14.8    109 
 Timber Creek             7950    6.7     4.9    137    11.9     8.4    142 
                                                -----                  -----
                Basin Index (%)                  119                    118 
 

SHOSHONE RIVER

 Blackwater               9780   39.2    23.8    165    43.5    21.7    200 
 Evening Star             9200   39.2    24.9    157    46.1    28.6    161 
 Marquette                8760   14.3      -M       *   18.2      -M       *
 Sylvan Road              7120    1.4    10.0     14    31.3    17.5    179 
 Younts Peak              8350   25.3    15.1    168    32.0    16.6    193 
                                                -----                  -----
                Basin Index (%)                  142                    181 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.6     3.5    103     9.7     9.3    104 
 Cloud Peak Reservoir     9860   16.7    15.7    106    20.4    14.7    139 
 Grave Springs            8550    7.0     9.6     73     8.8    11.5     77 
 Hansen Sawmill           8360   11.1     5.0    222    15.7     9.5    165 
 Middle Powder            7760    8.6    12.5     69     8.6    12.7     68 
 Powder River Pass        9480    8.9    10.2     87    14.6    13.6    107 
 Soldier Park             8720   14.5      -M       *   15.8      -M       *
                                                -----                  -----
                Basin Index (%)                   99                    109 
 

TONGUE RIVER

 Big Goose                7990   11.8     9.4    126    15.3    12.5    122 
 Bone Springs Div         9350   20.8    16.2    128    19.0    16.6    114 
 Burgess Junction         7880   10.9    12.4     88    13.0    13.4     97 
 Dome Lake                8880   16.6    11.8    141    17.8    14.8    120 
 Little Goose             8870   14.3      -M       *   18.8      -M       *
 Sucker Creek             8880   13.2    12.7    104    15.2    15.6     97 
 Tie Creek                6870     .2     4.5      4    14.5    12.7    114 
                                                -----                  -----
                Basin Index (%)                  110                    111 
 

BELLE FOURCHE

 Cole Canyon              5910     .0     2.2      0     8.0    10.3     78 
                                                -----                  -----
                Basin Index (%)                    0                     78 
 

CHEYENNE RIVER BASIN

 Blind Park               6890     .1     4.2      2     9.9    12.8     77 
 North Rapid Creek        6130     .0     4.4      0     8.3    10.6     78 
                                                -----                  -----
                Basin Index (%)                    1                     78 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   23.4    21.4    109    26.4    24.3    109 
 Blackhall Mtn            9820   34.2      -M       *   38.2      -M       *
 Columbine                9160   11.6    20.7     56    27.9    26.8    104 
 Divide Peak              8880   11.2    19.1     59    23.4    22.7    103 
 Joe Wright              10120   15.5    22.2     70    28.8    27.6    104 
 Laprele Creek            8375    6.4     8.3     77    12.8    13.5     95 
 Med Bow                 10500   34.8      -M       *   35.7      -M       *
 North French Creek      10130   23.2    32.0     72    28.0    28.3     99 
 Never Summer            10280   21.9    20.6    106    19.6      -M       *
 Old Battle              10000   36.2    32.5    111    38.9    36.8    106 
 Rawah                    9020    4.1     8.6     48    17.5    15.5    113 
 Sage Creek Basin         7850     -M     6.6       *   16.9    15.2    111 
 Sand Lake               10050   29.9    30.4     98    28.1    26.6    106 
 South Brush Creek        8440     -M     9.9       *   13.2    16.3     81 
 Tower                   10500   37.3    47.8     78    44.3    41.8    106 
 Webber Springs           9250   22.4    22.3    100    33.8    28.2    120 
 Willow Creek Pass        9540   17.7    12.9    137    18.6    14.3    130 
 Zirkel                   9340   24.1    22.8    106    42.5    29.7    143 
                                                -----                  -----
                Basin Index (%)                   89                    109 
 

SWEETWATER

 Deer Park                9700   33.2    16.2    205    39.2    21.3    184 
 Larsen Creek             9000   13.2    10.4    127    24.1      -M       *
 South Pass               9040   31.7    15.6    203    29.3    18.5    158 
                                                -----                  -----
                Basin Index (%)                  185                    172 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.6    14.5     66    13.8    16.4     84 
 Laprele Creek            8375    6.4     8.3     77    12.8    13.5     95 
 Reno Hill                8400   11.7    14.0     84    15.4    16.9     91 
 Windy Peak               7900    4.3     6.7     64    12.0    11.5    104 
                                                -----                  -----
                Basin Index (%)                   74                     93 
 

LARAMIE RIVER

 Brooklyn Lake           10240   20.0    22.1     90    23.6    22.6    104 
 Cinnabar Park            9574   12.8    20.3     63    22.6    25.3     89 
 Crow Creek               8330     .0     1.1      0     9.3    12.0     78 
 Deadman Hill            10220   19.7    16.8    117    20.8    18.7    111 
 Rawah                    9020    4.1     8.6     48    17.5    15.5    113 
 Roach                    9700   14.5    16.5     88    21.6    20.4    106 
                                                -----                  -----
                Basin Index (%)                   83                    101 
 

S. PLATTE

 Black Mountain           8920    8.0      -M       *   13.3      -M       *
 Crow Creek               8330     .0     1.1      0     9.3    12.0     78 
 Deadman Hill            10220   19.7    16.8    117    20.8    18.7    111 
                                                -----                  -----
                Basin Index (%)                  110                     98 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440     .0     4.9      0    17.1    16.0    107 
 Divide Peak              8880   11.2    19.1     59    23.4    22.7    103 
 Elk River                8700    5.6    15.8     35    20.4    21.1     97 
 Little Snake River       8915   20.9    24.7     85    39.3    31.2    126 
 Old Battle              10000   36.2    32.5    111    38.9    36.8    106 
 Sage Creek Basin         7850     -M     6.6       *   16.9    15.2    111 
 Sandstone RS             8150     -M    10.4       *   16.3    19.4     84 
 Whiskey Park             8950   21.2    26.0     82    30.7    29.5    104 
                                                -----                  -----
                Basin Index (%)                   77                    106 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   21.7    12.7    171    24.2    14.0    173 
 Blind Bull Sum           8650   44.3    24.0    185      -M    20.1       *
 East Rim Divide          7930   12.7     9.6    132    21.5    12.2    176 
 Elkhart Park G.S.        9400   20.0    11.9    168    25.1    14.0    179 
 Gros Ventre Summit       8750   20.6    13.2    156    25.0    13.6    184 
 Gunsight Pass            9820   23.7    13.6    174    25.9    14.8    175 
 Kendall R.S.             7740   16.6     8.8    189    29.6    14.7    201 
 Loomis Park              8240   25.2    13.1    192    32.8    17.9    183 
 New Fork Lake            8340   13.3     9.0    148    18.5    11.2    165 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   16.5    10.9    151    28.1    14.7    191 
 Spring Creek Divide      9000   42.0    23.5    179    41.4    24.6    168 
 Triple Peak              8500   35.5    19.3    184    42.0    26.2    160 
                                                -----                  -----
                Basin Index (%)                  172                    177 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    5.0      -M       *   16.7      -M       *
 Buck Pasture             9632   15.4      -M       *   24.4      -M       *
 EF Blacks Fork GS        9360   11.6      -M       *   18.4      -M       *
 Hams Fork                7840   10.9     7.1    154    22.5    11.9    189 
 Hewinta                  9500    6.4     8.3     77    18.4    14.9    123 
 Hickerson Park           9122    6.1     5.6    109    13.6    11.0    124 
 Hole-in-Rock             9168    5.5     6.0     92    14.3    10.5    136 
 Indian Creek             9425   40.8    23.2    176    42.3    23.5    180 
 Kelley R.S.              8180   24.6    12.9    191    31.6    18.8    168 
 Spirit Lk               10235   15.5      -M       *   19.5      -M       *
 Steel Creek Park        10158   19.7    16.2    122    22.2    17.6    126 
                                                -----                  -----
                Basin Index (%)                  144                    152 
 

UPPER BEAR RIVER

 Bear River RS            8777    3.1      -M       *   19.5      -M       *
 Bug Lake                 7987   32.1    17.6    182    35.5    20.2    176 
 Burts Miller Ranch       8000     .5      -M       *   10.9      -M       *
 Chalk Creek #1           9171   32.1    24.7    130    37.6    26.6    141 
 Hayden Fork              9130   13.5    12.2    111    30.9    22.3    139 
 Kelley R.S.              8180   24.6    12.9    191    31.6    18.8    168 
 Lily Lake                9133   11.5    11.0    105    21.0    18.2    115 
 Monte Cristo             8932   36.2    27.6    131    41.1    27.2    151 
 Salt River Summit        7760   18.1    10.0    181    29.9    17.3    173 
                                                -----                  -----
                Basin Index (%)                  145                    151 

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


 -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.