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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 2:18a, 5/22/18
Temperature 50.1°F
Wind 0.0 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 SATURDAY: FEBRUARY 4 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   16.8    10.9    154    24.6    14.3    172 
 Black Bear               8170   24.1    23.5    103    33.2    25.4    131 
 Blind Bull Sum           8650   24.2    14.3    169      -M    13.2       *
 Cottonwood Creek         7670   16.9    13.4    126    23.3    16.3    143 
 East Rim Divide          7930   11.7     6.9    170    13.9     7.9    176 
 Grand Targhee            9260   29.8    24.0    124    27.3    21.1    129 
 Granite Creek            6770   17.4    10.9    160    21.8    13.9    157 
 Grassy Lake              7265   25.6    20.9    122    37.0    24.5    151 
 Gros Ventre Summit       8750   10.4     8.6    121    14.6     8.4    174 
 Gunsight Pass            9820   11.2     8.4    133    15.2     9.1    167 
 Lewis Lake Divide        7850   22.3    20.3    110    33.7    23.6    143 
 Phillips Bench           8200   20.3    16.0    127    29.7    18.7    159 
 Salt River Summit        7760   12.9     8.1    159    18.5    10.9    170 
 Snake River Station      6920   15.5    11.3    137    24.6    15.8    156 
 Spring Creek Divide      9000   21.3    14.9    143    24.1    15.8    153 
 Thumb Divide             7980   11.8     9.6    123    16.9    12.4    136 
 Togwotee Pass            9580   19.5    15.2    128    23.4    16.2    144 
 Two Ocean Plateau        9240   25.7    18.2    141    25.5    17.7    144 
 Willow Creek             8380   20.8    17.7    118    31.9    22.2    144 
 Younts Peak              8350   14.2     9.9    143    18.3    10.7    171 
                                                -----                  -----
                Basin Index (%)                  132                    150 
 

MADISON-GALLATIN

 Black Bear               8170   24.1    23.5    103    33.2    25.4    131 
 Canyon                   7870   10.8     8.4    129    17.0    11.0    155 
 Madison Plateau          7750   14.8    14.2    104    23.8    17.7    134 
 West Yellowstone         6700    8.4     7.1    118    15.9     9.9    161 
 Whiskey Creek            6800    9.6     9.7     99    17.3    13.5    128 
                                                -----                  -----
                Basin Index (%)                  108                    138 
 

YELLOWSTONE

 Beartooth Lake           9360   17.6    14.2    124    13.8    13.2    105 
 Burnt Mtn                5880    5.4     2.5    216     9.6     8.1    119 
 Canyon                   7870   10.8     8.4    129    17.0    11.0    155 
 Cole Creek               7850    7.1     8.6     83     5.6     7.8     72 
 Evening Star             9200   21.0    16.6    127    27.1    18.4    147 
 Fisher Creek             9100   20.1    21.1     95    25.0    21.3    117 
 Northeast Entrance       7350    7.4     6.6    112    12.6     8.5    148 
 Parker Peak              9400   18.4    13.3    138    20.8    11.6    179 
 Sylvan Lake              8420   14.3    13.3    108    25.0    15.2    164 
 Thumb Divide             7980   11.8     9.6    123    16.9    12.4    136 
 Two Ocean Plateau        9240   25.7    18.2    141    25.5    17.7    144 
 White Mill               8700   16.5    15.0    110    19.6    15.8    124 
 Wolverine                7650     -M     7.2       *     -M     8.4       *
                                                -----                  -----
                Basin Index (%)                  119                    136 
 

WIND RIVER

 Burroughs Creek          8750   13.5      -M       *   15.9      -M       *
 Castle Creek             8400    7.8      -M       *   10.0      -M       *
 Cold Springs             9630    6.8     4.7    145     9.1     6.3    144 
 Deer Park                9700   18.2     9.5    192    21.6    12.6    171 
 Hobbs Park              10100   12.8     8.0    160    12.6     8.0    158 
 Kirwin                   9550   10.6     6.0    177    13.6     7.4    184 
 Little Warm              9370    8.0     6.5    123    13.0     8.4    155 
 Owl Creek                8975    4.5     3.1    145     6.0     3.6    167 
 South Pass               9040   17.4     9.5    183    16.6    11.2    148 
 St. Lawrence Alt         8620    3.9     4.2     93     7.8     5.4    144 
 Togwotee Pass            9580   19.5    15.2    128    23.4    16.2    144 
 Townsend Creek           8700    7.2     5.4    133    10.1     7.2    140 
                                                -----                  -----
                Basin Index (%)                  151                    155 
 

BIGHORN BASIN

 Bald Mtn.                9380   13.1    11.0    119    11.6    10.9    106 
 Bear Trap Meadow         8200    3.5     3.5    100     5.0     5.2     96 
 Bone Springs Div         9350   10.4     9.9    105    10.6     9.8    108 
 Grave Springs            8550    3.9     5.0     78     4.9     6.6     74 
 Kirwin                   9550   10.6     6.0    177    13.6     7.4    184 
 Marquette                8760    5.6      -M       *    9.1      -M       *
 Middle Powder            7760    4.8     6.4     75     5.3     7.6     70 
 Owl Creek                8975    4.5     3.1    145     6.0     3.6    167 
 Powder River Pass        9480    4.1     6.7     61     7.0     8.0     88 
 Shell Creek              9580   10.8     9.2    117     8.5     9.1     93 
 Timber Creek             7950    3.9     3.0    130     5.2     4.6    113 
                                                -----                  -----
                Basin Index (%)                  109                    107 
 

SHOSHONE RIVER

 Blackwater               9780   21.7    14.9    146    24.4    13.5    181 
 Evening Star             9200   21.0    16.6    127    27.1    18.4    147 
 Marquette                8760    5.6      -M       *    9.1      -M       *
 Sylvan Road              7120   10.7     7.9    135    20.8    12.1    172 
 Younts Peak              8350   14.2     9.9    143    18.3    10.7    171 
                                                -----                  -----
                Basin Index (%)                  137                    166 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.5     3.5    100     5.0     5.2     96 
 Cloud Peak Reservoir     9860    7.8     8.5     92     9.5     8.0    119 
 Grave Springs            8550    3.9     5.0     78     4.9     6.6     74 
 Hansen Sawmill           8360    5.4     4.0    135     7.2     5.2    138 
 Middle Powder            7760    4.8     6.4     75     5.3     7.6     70 
 Powder River Pass        9480    4.1     6.7     61     7.0     8.0     88 
 Soldier Park             8720    8.1      -M       *    7.3      -M       *
                                                -----                  -----
                Basin Index (%)                   87                     96 
 

TONGUE RIVER

 Big Goose                7990    5.9     5.0    118     6.9     6.7    103 
 Bone Springs Div         9350   10.4     9.9    105    10.6     9.8    108 
 Burgess Junction         7880    6.4     6.8     94     7.6     7.6    100 
 Dome Lake                8880    7.0     7.0    100     8.6     8.6    100 
 Little Goose             8870    6.4      -M       *    8.5      -M       *
 Sucker Creek             8880    7.3     7.2    101     7.5     8.9     84 
 Tie Creek                6870    4.5     3.4    132     7.7     7.2    107 
                                                -----                  -----
                Basin Index (%)                  106                    100 
 

BELLE FOURCHE

 Cole Canyon              5910    3.6     3.3    109     4.7     5.8     81 
                                                -----                  -----
                Basin Index (%)                  109                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.7     4.9     96     5.8     7.9     73 
 North Rapid Creek        6130    4.7     4.4    107     5.1     6.4     80 
                                                -----                  -----
                Basin Index (%)                  101                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   19.6    13.5    145    20.3    14.5    140 
 Blackhall Mtn            9820   26.2      -M       *   27.0      -M       *
 Columbine                9160   19.8    15.0    132    22.0    16.8    131 
 Divide Peak              8880   13.8    12.7    109    16.3    14.0    116 
 Joe Wright              10120   15.2    13.2    115    21.0    16.4    128 
 Laprele Creek            8375    7.2     5.5    131     7.0     7.7     91 
 Med Bow                 10500   27.2      -M       *   25.7      -M       *
 North French Creek      10130   17.4    16.3    107    19.0    17.3    110 
 Never Summer            10280   16.6    12.9    129    14.1      -M       *
 Old Battle              10000   25.9    19.6    132    27.3    22.9    119 
 Rawah                    9020   10.0     6.4    156    12.8     9.2    139 
 Sage Creek Basin         7850   11.3     8.7    130    11.9    10.0    119 
 Sand Lake               10050   20.1    16.8    120    19.2    15.4    125 
 South Brush Creek        8440    7.4     7.5     99     8.9     9.7     92 
 Tower                   10500   32.4    28.2    115    34.2    26.1    131 
 Webber Springs           9250   20.7    14.4    144    24.4    17.4    140 
 Willow Creek Pass        9540     -M     7.9       *     -M     8.4       *
 Zirkel                   9340   28.9    19.0    152    31.0    19.6    158 
                                                -----                  -----
                Basin Index (%)                  127                    127 
 

SWEETWATER

 Deer Park                9700   18.2     9.5    192    21.6    12.6    171 
 Larsen Creek             9000   12.7     7.5    169    16.0      -M       *
 South Pass               9040   17.4     9.5    183    16.6    11.2    148 
                                                -----                  -----
                Basin Index (%)                  182                    161 
 

LOWER N. PLATTE

 Casper Mtn.              7900    6.7     7.7     87     6.9     9.2     75 
 Laprele Creek            8375    7.2     5.5    131     7.0     7.7     91 
 Reno Hill                8400    7.7     7.8     99     7.9     9.2     86 
 Windy Peak               7900    5.9     4.3    137     6.6     6.5    102 
                                                -----                  -----
                Basin Index (%)                  109                     87 
 

LARAMIE RIVER

 Brooklyn Lake           10240   17.0    12.1    140    15.6    13.2    118 
 Cinnabar Park            9574   13.7    13.5    101    16.5    16.5    100 
 Crow Creek               8330    4.0     5.7     70     6.0     6.5     92 
 Deadman Hill            10220   14.7    10.4    141    14.5    10.5    138 
 Rawah                    9020   10.0     6.4    156    12.8     9.2    139 
 Roach                    9700   12.7    10.2    125    15.1    12.1    125 
                                                -----                  -----
                Basin Index (%)                  124                    118 
 

S. PLATTE

 Black Mountain           8920    7.3      -M       *    8.5      -M       *
 Crow Creek               8330    4.0     5.7     70     6.0     6.5     92 
 Deadman Hill            10220   14.7    10.4    141    14.5    10.5    138 
                                                -----                  -----
                Basin Index (%)                  116                    121 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    8.8     7.2    122    11.9     9.9    120 
 Divide Peak              8880   13.8    12.7    109    16.3    14.0    116 
 Elk River                8700   15.9    11.7    136    15.9    13.1    121 
 Little Snake River       8915     -M    16.0       *     -M    21.3       *
 Old Battle              10000   25.9    19.6    132    27.3    22.9    119 
 Sage Creek Basin         7850   11.3     8.7    130    11.9    10.0    119 
 Sandstone RS             8150   10.7     8.3    129    11.9    12.3     97 
 Whiskey Park             8950   20.7    16.6    125    23.1    18.3    126 
                                                -----                  -----
                Basin Index (%)                  126                    118 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   13.7     8.5    161    16.0     8.5    188 
 Blind Bull Sum           8650   24.2    14.3    169      -M    13.2       *
 East Rim Divide          7930   11.7     6.9    170    13.9     7.9    176 
 Elkhart Park G.S.        9400   10.8     7.7    140    16.0     8.7    184 
 Gros Ventre Summit       8750   10.4     8.6    121    14.6     8.4    174 
 Gunsight Pass            9820   11.2     8.4    133    15.2     9.1    167 
 Kendall R.S.             7740   14.1     7.8    181    18.4     9.5    194 
 Loomis Park              8240   16.2     9.8    165    20.8    11.6    179 
 New Fork Lake            8340   10.8     6.8    159    10.9     7.2    151 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   12.6     7.8    162    17.3     9.5    182 
 Spring Creek Divide      9000   21.3    14.9    143    24.1    15.8    153 
 Triple Peak              8500   23.2    13.5    172      -M    16.5       *
                                                -----                  -----
                Basin Index (%)                  157                    174 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8870    8.3      -M       *   10.6      -M       *
 Buck Pasture             9700   14.0      -M       *   16.5      -M       *
 EF Blacks Fork GS        9360   10.0      -M       *    9.5      -M       *
 Hams Fork                7840   11.8     7.4    159    13.6     7.4    184 
 Hewinta                  9519    8.9     6.0    148    11.1     8.9    125 
 Hickerson Park           9145    6.1     3.9    156     6.4     6.3    102 
 Hole-in-Rock             9150    5.0     4.1    122     6.9     5.9    117 
 Indian Creek             9425   22.2    14.8    150      -M    14.4       *
 Kelley R.S.              8180   15.8     9.2    172    21.0    11.8    178 
 Spirit Lk               10235    9.8      -M       *   11.4      -M       *
 Steel Creek Park        10200   12.0     8.9    135    13.5    10.2    132 
                                                -----                  -----
                Basin Index (%)                  151                    144 
 

UPPER BEAR RIVER

 Bear River RS            8777    9.9      -M       *   11.9      -M       *
 Bug Lake                 7950   21.9    11.4    192    20.3    12.7    160 
 Burts Miller Ranch       8000    5.6      -M       *    6.1      -M       *
 Chalk Creek #1           8993   22.2    13.4    166    23.6    16.0    148 
 Hayden Fork              9212   15.8     8.8    180    20.6    13.5    153 
 Kelley R.S.              8180   15.8     9.2    172    21.0    11.8    178 
 Lily Lake                9156   10.9     7.5    145    13.3    11.0    121 
 Monte Cristo             8960   22.4    16.1    139      -M    16.7       *
 Salt River Summit        7760   12.9     8.1    159    18.5    10.9    170 
                                                -----                  -----
                Basin Index (%)                  164                    155 

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


 -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.