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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 5:38a, 5/26/18
Temperature 51.9°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 FRIDAY: MARCH 24 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   24.5    14.6    168    37.8    19.3    196 
 Black Bear               8170   43.2    33.4    129    49.9    35.1    142 
 Blind Bull Sum           8650   41.2    21.0    196      -M    17.9       *
 Cottonwood Creek         7670   26.0    20.4    127    35.4    22.5    157 
 East Rim Divide          7930   17.5     9.7    180    20.4    10.8    189 
 Grand Targhee            9260   41.5    33.6    124    37.9    27.5    138 
 Granite Creek            6770   28.2    14.8    191    34.6    18.4    188 
 Grassy Lake              7265   34.3    30.0    114    51.0    33.3    153 
 Gros Ventre Summit       8750     -M    11.9       *     -M    11.7       *
 Gunsight Pass            9820   20.2    12.4    163    22.7    12.4    183 
 Lewis Lake Divide        7850   40.2    28.4    142    52.0    32.7    159 
 Phillips Bench           8200   34.7    22.9    152    44.4    25.8    172 
 Salt River Summit        7760   19.4    12.2    159      -M    15.3       *
 Snake River Station      6920   19.4    15.5    125    33.6    20.8    162 
 Spring Creek Divide      9000   37.8    21.8    173    37.9    21.9    173 
 Thumb Divide             7980   22.8    14.6    156    26.6    16.8    158 
 Togwotee Pass            9580   31.5    21.0    150    36.1    22.2    163 
 Two Ocean Plateau        9240     -M    24.5       *     -M    24.9       *
 Willow Creek             8380   29.0    25.3    115    46.3    30.6    151 
 Younts Peak              8350   24.7    13.7    180    30.0    14.4    208 
                                                -----                  -----
                Basin Index (%)                  147                    164 
 

MADISON-GALLATIN

 Black Bear               8170   43.2    33.4    129    49.9    35.1    142 
 Canyon                   7870   17.0    11.9    143    24.4    14.8    165 
 Madison Plateau          7750   25.3    20.4    124    33.7    24.1    140 
 West Yellowstone         6700   10.1    10.0    101    21.8    12.9    169 
 Whiskey Creek            6800   13.3    14.4     92    25.1    18.4    136 
                                                -----                  -----
                Basin Index (%)                  121                    147 
 

YELLOWSTONE

 Beartooth Lake           9360   30.7    20.0    154    26.3    18.1    145 
 Burnt Mtn                5880    2.4     4.8     50    12.6    11.2    112 
 Canyon                   7870   17.0    11.9    143    24.4    14.8    165 
 Cole Creek               7850    9.5    12.4     77     6.8    11.1     61 
 Evening Star             9200   36.4    22.9    159    42.9    24.9    172 
 Fisher Creek             9100   41.5    28.4    146    44.6    29.2    153 
 Northeast Entrance       7350    9.8     9.4    104    19.3    11.2    172 
 Parker Peak              9400   31.6    17.9    177    32.3    16.0    202 
 Sylvan Lake              8420   21.9    18.5    118    35.3    20.3    174 
 Thumb Divide             7980   22.8    14.6    156    26.6    16.8    158 
 Two Ocean Plateau        9240     -M    24.5       *     -M    24.9       *
 White Mill               8700   33.0    20.6    160    33.9    21.7    156 
 Wolverine                7650    9.1     8.9    102    20.0    11.2    179 
                                                -----                  -----
                Basin Index (%)                  140                    157 
 

WIND RIVER

 Burroughs Creek          8750   23.1      -M       *   25.8      -M       *
 Castle Creek             8400   11.1      -M       *   14.3      -M       *
 Cold Springs             9630   12.6     6.6    191    15.3     8.8    174 
 Deer Park                9700   28.6    14.0    204    33.6    17.6    191 
 Hobbs Park              10100   23.3    12.4    188    21.8    11.4    191 
 Kirwin                   9550   19.5     8.6    227    21.7    10.2    213 
 Little Warm              9370   16.2     9.6    169    21.9    11.5    190 
 Owl Creek                8975    6.8     4.7    145     9.2     5.2    177 
 South Pass               9040   26.9    14.4    187    24.3    15.7    155 
 St. Lawrence Alt         8620    5.9     6.4     92    13.0     7.8    167 
 Togwotee Pass            9580   31.5    21.0    150    36.1    22.2    163 
 Townsend Creek           8700   12.9     8.5    152    16.6    10.3    161 
                                                -----                  -----
                Basin Index (%)                  173                    177 
 

BIGHORN BASIN

 Bald Mtn.                9380   17.6    16.7    105    14.9    15.2     98 
 Bear Trap Meadow         8200    4.3     5.2     83     6.6     7.4     89 
 Bone Springs Div         9350   16.6    14.3    116    15.3    13.7    112 
 Grave Springs            8550    6.1     8.3     73     6.5     9.3     70 
 Kirwin                   9550   19.5     8.6    227    21.7    10.2    213 
 Marquette                8760    7.6      -M       *   12.3      -M       *
 Middle Powder            7760    6.2    10.3     60     6.2    10.4     60 
 Owl Creek                8975    6.8     4.7    145     9.2     5.2    177 
 Powder River Pass        9480    7.1     9.4     76    10.6    11.2     95 
 Shell Creek              9580   15.0    13.2    114    12.0    12.2     98 
 Timber Creek             7950    4.5     4.1    110     7.6     6.4    119 
                                                -----                  -----
                Basin Index (%)                  109                    109 
 

SHOSHONE RIVER

 Blackwater               9780   35.9    21.1    170    39.7    18.5    215 
 Evening Star             9200   36.4    22.9    159    42.9    24.9    172 
 Marquette                8760    7.6      -M       *   12.3      -M       *
 Sylvan Road              7120   12.0    10.7    112    29.6    15.4    192 
 Younts Peak              8350   24.7    13.7    180    30.0    14.4    208 
                                                -----                  -----
                Basin Index (%)                  159                    194 
 

POWDER RIVER

 Bear Trap Meadow         8200    4.3     5.2     83     6.6     7.4     89 
 Cloud Peak Reservoir     9860   12.4    13.3     93    13.5    11.6    116 
 Grave Springs            8550    6.1     8.3     73     6.5     9.3     70 
 Hansen Sawmill           8360    7.6     5.9    129    10.1     7.5    135 
 Middle Powder            7760    6.2    10.3     60     6.2    10.4     60 
 Powder River Pass        9480    7.1     9.4     76    10.6    11.2     95 
 Soldier Park             8720   11.3      -M       *    9.9      -M       *
                                                -----                  -----
                Basin Index (%)                   83                     93 
 

TONGUE RIVER

 Big Goose                7990    8.7     8.1    107    10.2     9.5    107 
 Bone Springs Div         9350   16.6    14.3    116    15.3    13.7    112 
 Burgess Junction         7880    8.6     9.9     87     9.5    10.8     88 
 Dome Lake                8880   12.9    10.6    122    12.9    11.8    109 
 Little Goose             8870    9.7      -M       *   12.8      -M       *
 Sucker Creek             8880   10.2    11.1     92    10.2    12.6     81 
 Tie Creek                6870    2.7     5.2     52    10.6    10.0    106 
                                                -----                  -----
                Basin Index (%)                  101                    100 
 

BELLE FOURCHE

 Cole Canyon              5910     .8     5.6     14     6.6     8.1     81 
                                                -----                  -----
                Basin Index (%)                   14                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    1.3     7.1     18     7.9    10.6     75 
 North Rapid Creek        6130    2.6     6.7     39     6.7     8.8     76 
                                                -----                  -----
                Basin Index (%)                   28                     75 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   22.7    18.4    123    23.7    20.1    118 
 Blackhall Mtn            9820   33.9      -M       *   35.2      -M       *
 Columbine                9160   20.5    22.1     93    26.0    23.4    111 
 Divide Peak              8880   15.2    18.2     84    20.9    19.6    107 
 Joe Wright              10120   16.5    19.4     85    25.8    23.4    110 
 Laprele Creek            8375   10.0     9.3    108    10.7    11.1     96 
 Med Bow                 10500   36.9      -M       *   32.6      -M       *
 North French Creek      10130   22.9    26.3     87    25.2    24.3    104 
 Never Summer            10280   20.8    18.3    114    17.4      -M       *
 Old Battle              10000   35.4    27.3    130    36.4    32.1    113 
 Rawah                    9020    8.8     9.8     90    15.2    12.5    122 
 Sage Creek Basin         7850    8.4    11.8     71    15.2    13.1    116 
 Sand Lake               10050   28.3    25.5    111    25.5    22.2    115 
 South Brush Creek        8440    6.2    11.5     54    11.6    13.7     85 
 Tower                   10500   38.7    41.0     94    41.7    36.4    115 
 Webber Springs           9250   26.0    21.6    120    31.6    24.4    130 
 Willow Creek Pass        9540   16.3    11.2    146    17.1    12.0    142 
 Zirkel                   9340   34.4    25.5    135    40.2    25.8    156 
                                                -----                  -----
                Basin Index (%)                  104                    117 
 

SWEETWATER

 Deer Park                9700   28.6    14.0    204    33.6    17.6    191 
 Larsen Creek             9000   16.7    11.5    145    21.9      -M       *
 South Pass               9040   26.9    14.4    187    24.3    15.7    155 
                                                -----                  -----
                Basin Index (%)                  181                    174 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.1    12.6     72    10.3    13.2     78 
 Laprele Creek            8375   10.0     9.3    108    10.7    11.1     96 
 Reno Hill                8400   10.5    12.4     85    11.9    13.4     89 
 Windy Peak               7900    7.8     7.5    104    10.0     9.4    106 
                                                -----                  -----
                Basin Index (%)                   89                     91 
 

LARAMIE RIVER

 Brooklyn Lake           10240   23.2    18.2    127    21.7    19.0    114 
 Cinnabar Park            9574   16.5    18.9     87    20.8    21.8     95 
 Crow Creek               8330    1.1     6.9     16     8.1     9.4     86 
 Deadman Hill            10220   19.2    14.3    134    18.3    15.4    119 
 Rawah                    9020    8.8     9.8     90    15.2    12.5    122 
 Roach                    9700   15.1    14.3    106    18.7    17.2    109 
                                                -----                  -----
                Basin Index (%)                  102                    108 
 

S. PLATTE

 Black Mountain           8920    8.9      -M       *   10.6      -M       *
 Crow Creek               8330    1.1     6.9     16     8.1     9.4     86 
 Deadman Hill            10220   19.2    14.3    134    18.3    15.4    119 
                                                -----                  -----
                Basin Index (%)                   96                    106 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    4.3    11.2     38    15.6    13.9    112 
 Divide Peak              8880   15.2    18.2     84    20.9    19.6    107 
 Elk River                8700   13.8    17.5     79    19.1    18.3    104 
 Little Snake River       8915   26.0    21.5    121    36.9    27.0    137 
 Old Battle              10000   35.4    27.3    130    36.4    32.1    113 
 Sage Creek Basin         7850    8.4    11.8     71    15.2    13.1    116 
 Sandstone RS             8150    9.1    12.8     71    15.2    17.0     89 
 Whiskey Park             8950   24.7    24.6    100    28.4    25.5    111 
                                                -----                  -----
                Basin Index (%)                   94                    113 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.8    11.9    166    22.3    12.0    186 
 Blind Bull Sum           8650   41.2    21.0    196      -M    17.9       *
 East Rim Divide          7930   17.5     9.7    180    20.4    10.8    189 
 Elkhart Park G.S.        9400   18.1    11.1    163    22.9    12.1    189 
 Gros Ventre Summit       8750     -M    11.9       *     -M    11.7       *
 Gunsight Pass            9820   20.2    12.4    163    22.7    12.4    183 
 Kendall R.S.             7740   21.3    11.4    187    28.1    13.2    213 
 Loomis Park              8240   26.3    13.8    191    31.0    15.9    195 
 New Fork Lake            8340   16.0     9.6    167    17.0     9.9    172 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.3    11.3    162    25.8    13.0    198 
 Spring Creek Divide      9000   37.8    21.8    173    37.9    21.9    173 
 Triple Peak              8500   34.9    20.1    174    38.6    23.2    166 
                                                -----                  -----
                Basin Index (%)                  176                    185 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    7.7      -M       *   14.0      -M       *
 Buck Pasture             9632   16.2      -M       *   21.4      -M       *
 EF Blacks Fork GS        9360   13.4      -M       *   14.9      -M       *
 Hams Fork                7840   13.8    10.5    131    19.5    10.4    188 
 Hewinta                  9500    6.5     9.9     66    14.7    12.7    116 
 Hickerson Park           9122    6.4     6.8     94     9.5     9.1    104 
 Hole-in-Rock             9168    4.4     6.9     64     9.9     8.6    115 
 Indian Creek             9425   37.9    22.0    172      -M    20.6       *
 Kelley R.S.              8180   24.2    14.0    173    29.0    16.6    175 
 Spirit Lk               10235   13.6      -M       *   16.2      -M       *
 Steel Creek Park        10158   16.0    13.7    117    18.1    14.6    124 
                                                -----                  -----
                Basin Index (%)                  130                    140 
 

UPPER BEAR RIVER

 Bear River RS            8777    8.0      -M       *   16.1      -M       *
 Bug Lake                 7987   29.8    17.2    173    31.4    17.8    176 
 Burts Miller Ranch       8000    2.4      -M       *    8.6      -M       *
 Chalk Creek #1           9171   30.5    22.0    139    32.7    22.8    143 
 Hayden Fork              9130   17.4    14.5    120    27.5    19.0    145 
 Kelley R.S.              8180   24.2    14.0    173    29.0    16.6    175 
 Lily Lake                9133   11.5    11.6     99    17.5    15.4    114 
 Monte Cristo             8932   33.8    25.0    135    36.3    23.6    154 
 Salt River Summit        7760   19.4    12.2    159      -M    15.3       *
                                                -----                  -----
                Basin Index (%)                  143                    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.