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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 3:23a, 10/18/18
Temperature 37.4°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 THURSDAY: MARCH 23 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030   24.2    14.6    166    37.8    19.2    197 
 Black Bear               8170   44.0    33.1    133    49.9    34.9    143 
 Blind Bull Sum           8650   41.4    20.8    199      -M    17.9       *
 Cottonwood Creek         7670   25.6    20.3    126    35.3    22.3    158 
 East Rim Divide          7930   17.2     9.6    179    20.0    10.7    187 
 Grand Targhee            9260   41.7    33.4    125    38.0    27.4    139 
 Granite Creek            6770   28.4    14.7    193    34.6    18.3    189 
 Grassy Lake              7265   34.4    29.7    116    51.0    33.1    154 
 Gros Ventre Summit       8750   17.4    11.8    147    22.1    11.6    191 
 Gunsight Pass            9820   19.9    12.3    162    22.4    12.2    184 
 Lewis Lake Divide        7850   40.3    28.2    143    52.0    32.5    160 
 Phillips Bench           8200   34.6    22.8    152    44.4    25.6    173 
 Salt River Summit        7760   19.7    12.2    161      -M    15.2       *
 Snake River Station      6920   19.1    15.5    123    33.7    20.6    164 
 Spring Creek Divide      9000   37.7    21.6    175    37.7    21.8    173 
 Thumb Divide             7980   22.6    14.4    157    26.6    16.7    159 
 Togwotee Pass            9580   31.2    20.9    149    35.8    22.0    163 
 Two Ocean Plateau        9240     -M    24.4       *     -M    24.8       *
 Willow Creek             8380   29.0    25.3    115    45.9    30.4    151 
 Younts Peak              8350   24.9    13.6    183    30.0    14.3    210 
                                                -----                  -----
                Basin Index (%)                  148                    165 
 

MADISON-GALLATIN

 Black Bear               8170   44.0    33.1    133    49.9    34.9    143 
 Canyon                   7870   16.8    11.8    142    24.4    14.7    166 
 Madison Plateau          7750   25.3    20.4    124    33.8    23.9    141 
 West Yellowstone         6700    9.9    10.0     99    21.8    12.8    170 
 Whiskey Creek            6800   13.4    14.4     93    25.1    18.3    137 
                                                -----                  -----
                Basin Index (%)                  122                    148 
 

YELLOWSTONE

 Beartooth Lake           9360   30.8    19.8    156    26.3    18.0    146 
 Burnt Mtn                5880    2.5     4.7     53    12.5    11.0    114 
 Canyon                   7870   16.8    11.8    142    24.4    14.7    166 
 Cole Creek               7850    9.5    12.3     77     6.8    11.0     62 
 Evening Star             9200   36.7    22.7    162    42.8    24.8    173 
 Fisher Creek             9100   41.6    28.4    146    44.5    28.9    154 
 Northeast Entrance       7350    9.9     9.3    106    19.3    11.1    174 
 Parker Peak              9400   31.7    17.9    177    32.3    15.9    203 
 Sylvan Lake              8420   21.5    18.4    117    35.3    20.2    175 
 Thumb Divide             7980   22.6    14.4    157    26.6    16.7    159 
 Two Ocean Plateau        9240     -M    24.4       *     -M    24.8       *
 White Mill               8700   33.2    20.4    163    33.9    21.5    158 
 Wolverine                7650   10.1     8.9    113    20.1    11.1    181 
                                                -----                  -----
                Basin Index (%)                  141                    159 
 

WIND RIVER

 Burroughs Creek          8750   22.8      -M       *   25.7      -M       *
 Castle Creek             8400   11.1      -M       *   14.5      -M       *
 Cold Springs             9630   11.9     6.6    180    14.9     8.7    171 
 Deer Park                9700   27.7    13.9    199    32.7    17.4    188 
 Hobbs Park              10100   22.1    12.2    181    20.5    11.3    181 
 Kirwin                   9550   19.1     8.5    225    21.5    10.2    211 
 Little Warm              9370   15.7     9.4    167    21.5    11.3    190 
 Owl Creek                8975    6.7     4.7    143     9.1     5.1    178 
 South Pass               9040   26.0    14.3    182    23.9    15.5    154 
 St. Lawrence Alt         8620    5.0     6.4     78    12.1     7.7    157 
 Togwotee Pass            9580   31.2    20.9    149    35.8    22.0    163 
 Townsend Creek           8700   11.9     8.5    140    16.0    10.2    157 
                                                -----                  -----
                Basin Index (%)                  168                    174 
 

BIGHORN BASIN

 Bald Mtn.                9380   17.2    16.6    104    14.9    15.1     99 
 Bear Trap Meadow         8200    3.8     5.2     73     6.2     7.3     85 
 Bone Springs Div         9350   15.9    14.2    112    15.3    13.6    112 
 Grave Springs            8550    5.7     8.3     69     6.0     9.2     65 
 Kirwin                   9550   19.1     8.5    225    21.5    10.2    211 
 Marquette                8760    7.0      -M       *   11.7      -M       *
 Middle Powder            7760    5.8    10.2     57     6.2    10.3     60 
 Owl Creek                8975    6.7     4.7    143     9.1     5.1    178 
 Powder River Pass        9480    6.8     9.4     72    10.6    11.1     95 
 Shell Creek              9580   14.9    13.1    114    12.0    12.1     99 
 Timber Creek             7950    4.0     4.1     98     7.1     6.3    113 
                                                -----                  -----
                Basin Index (%)                  106                    109 
 

SHOSHONE RIVER

 Blackwater               9780   35.8    21.0    170    39.7    18.4    216 
 Evening Star             9200   36.7    22.7    162    42.8    24.8    173 
 Marquette                8760    7.0      -M       *   11.7      -M       *
 Sylvan Road              7120   12.2    10.6    115    29.7    15.3    194 
 Younts Peak              8350   24.9    13.6    183    30.0    14.3    210 
                                                -----                  -----
                Basin Index (%)                  161                    195 
 

POWDER RIVER

 Bear Trap Meadow         8200    3.8     5.2     73     6.2     7.3     85 
 Cloud Peak Reservoir     9860   11.9    13.2     90    13.2    11.5    115 
 Grave Springs            8550    5.7     8.3     69     6.0     9.2     65 
 Hansen Sawmill           8360    7.2     5.8    124     9.7     7.4    131 
 Middle Powder            7760    5.8    10.2     57     6.2    10.3     60 
 Powder River Pass        9480    6.8     9.4     72    10.6    11.1     95 
 Soldier Park             8720   10.9      -M       *    9.5      -M       *
                                                -----                  -----
                Basin Index (%)                   79                     91 
 

TONGUE RIVER

 Big Goose                7990    8.1     8.0    101     9.6     9.4    102 
 Bone Springs Div         9350   15.9    14.2    112    15.3    13.6    112 
 Burgess Junction         7880    8.1     9.8     83     9.1    10.7     85 
 Dome Lake                8880   12.4    10.5    118    12.4    11.7    106 
 Little Goose             8870    8.8      -M       *   12.0      -M       *
 Sucker Creek             8880    9.6    11.0     87     9.9    12.5     79 
 Tie Creek                6870    2.2     5.1     43    10.0     9.9    101 
                                                -----                  -----
                Basin Index (%)                   96                     98 
 

BELLE FOURCHE

 Cole Canyon              5910    1.1     5.6     20     6.6     8.0     82 
                                                -----                  -----
                Basin Index (%)                   20                     82 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    1.8     7.1     25     7.9    10.6     75 
 North Rapid Creek        6130    3.0     6.6     45     6.7     8.7     77 
                                                -----                  -----
                Basin Index (%)                   35                     76 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   22.6    18.2    124    23.6    19.9    119 
 Blackhall Mtn            9820   34.2      -M       *   35.2      -M       *
 Columbine                9160   21.0    22.1     95    26.0    23.3    112 
 Divide Peak              8880   15.7    18.0     87    20.9    19.4    108 
 Joe Wright              10120   16.6    19.3     86    25.7    23.2    111 
 Laprele Creek            8375   10.2     9.3    110    10.7    11.0     97 
 Med Bow                 10500   37.2      -M       *   32.5      -M       *
 North French Creek      10130   23.3    26.1     89    25.2    24.0    105 
 Never Summer            10280   20.9    18.2    115    17.2      -M       *
 Old Battle              10000   35.4    27.1    131    36.4    31.9    114 
 Rawah                    9020    9.1     9.7     94    15.1    12.4    122 
 Sage Creek Basin         7850    9.2    11.6     79    15.2    13.0    117 
 Sand Lake               10050   28.4    25.3    112    25.5    22.0    116 
 South Brush Creek        8440    6.8    11.3     60    11.7    13.6     86 
 Tower                   10500   39.2    40.7     96    41.7    36.2    115 
 Webber Springs           9250   25.4    21.5    118    31.6    24.2    131 
 Willow Creek Pass        9540   16.3    11.1    147    17.1    11.9    144 
 Zirkel                   9340   35.5    25.5    139    40.3    25.6    157 
                                                -----                  -----
                Basin Index (%)                  107                    118 
 

SWEETWATER

 Deer Park                9700   27.7    13.9    199    32.7    17.4    188 
 Larsen Creek             9000   16.4    11.4    144    21.5      -M       *
 South Pass               9040   26.0    14.3    182    23.9    15.5    154 
                                                -----                  -----
                Basin Index (%)                  177                    172 
 

LOWER N. PLATTE

 Casper Mtn.              7900    9.3    12.6     74    10.4    13.0     80 
 Laprele Creek            8375   10.2     9.3    110    10.7    11.0     97 
 Reno Hill                8400   10.4    12.3     85    11.9    13.2     90 
 Windy Peak               7900    8.1     7.4    109    10.2     9.2    111 
                                                -----                  -----
                Basin Index (%)                   91                     93 
 

LARAMIE RIVER

 Brooklyn Lake           10240   23.7    18.0    132    21.8    18.8    116 
 Cinnabar Park            9574   16.9    18.7     90    20.8    21.6     96 
 Crow Creek               8330    1.8     6.9     26     8.1     9.1     89 
 Deadman Hill            10220   19.5    14.2    137    18.2    15.2    120 
 Rawah                    9020    9.1     9.7     94    15.1    12.4    122 
 Roach                    9700   14.9    14.3    104    18.4    17.1    108 
                                                -----                  -----
                Basin Index (%)                  105                    109 
 

S. PLATTE

 Black Mountain           8920    9.1      -M       *   10.6      -M       *
 Crow Creek               8330    1.8     6.9     26     8.1     9.1     89 
 Deadman Hill            10220   19.5    14.2    137    18.2    15.2    120 
                                                -----                  -----
                Basin Index (%)                  101                    108 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440    4.7    11.3     42    15.6    13.7    114 
 Divide Peak              8880   15.7    18.0     87    20.9    19.4    108 
 Elk River                8700   14.3    17.5     82    19.1    18.2    105 
 Little Snake River       8915   26.7    21.4    125    36.8    26.8    137 
 Old Battle              10000   35.4    27.1    131    36.4    31.9    114 
 Sage Creek Basin         7850    9.2    11.6     79    15.2    13.0    117 
 Sandstone RS             8150    9.7    12.7     76    15.2    16.9     90 
 Whiskey Park             8950   25.2    24.5    103    28.3    25.3    112 
                                                -----                  -----
                Basin Index (%)                   98                    113 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.6    11.9    165    22.0    12.0    183 
 Blind Bull Sum           8650   41.4    20.8    199      -M    17.9       *
 East Rim Divide          7930   17.2     9.6    179    20.0    10.7    187 
 Elkhart Park G.S.        9400   18.0    11.0    164    22.6    12.0    188 
 Gros Ventre Summit       8750   17.4    11.8    147    22.1    11.6    191 
 Gunsight Pass            9820   19.9    12.3    162    22.4    12.2    184 
 Kendall R.S.             7740   21.1    11.4    185    27.8    13.1    212 
 Loomis Park              8240   26.0    13.7    190    30.8    15.7    196 
 New Fork Lake            8340   16.0     9.5    168    16.9     9.8    172 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060   18.2    11.2    162    25.6    12.9    198 
 Spring Creek Divide      9000   37.7    21.6    175    37.7    21.8    173 
 Triple Peak              8500   34.5    20.0    172    38.1    23.1    165 
                                                -----                  -----
                Basin Index (%)                  174                    185 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869    7.6      -M       *   13.7      -M       *
 Buck Pasture             9632   16.0      -M       *   21.0      -M       *
 EF Blacks Fork GS        9360   13.0      -M       *   14.4      -M       *
 Hams Fork                7840   13.5    10.5    129    19.1    10.3    185 
 Hewinta                  9500    6.1     9.9     62    14.2    12.6    113 
 Hickerson Park           9122    5.7     6.8     84     8.8     9.1     97 
 Hole-in-Rock             9168    4.0     6.8     59     9.4     8.5    111 
 Indian Creek             9425   37.8    21.8    173      -M    20.5       *
 Kelley R.S.              8180   24.1    13.8    175    28.8    16.5    175 
 Spirit Lk               10235   12.8      -M       *   15.5      -M       *
 Steel Creek Park        10158   15.4    13.7    112    17.5    14.6    120 
                                                -----                  -----
                Basin Index (%)                  128                    137 
 

UPPER BEAR RIVER

 Bear River RS            8777    7.6      -M       *   15.6      -M       *
 Bug Lake                 7987   29.4    17.0    173    30.6    17.7    173 
 Burts Miller Ranch       8000    2.3      -M       *    8.4      -M       *
 Chalk Creek #1           9171   30.2    21.9    138    32.3    22.6    143 
 Hayden Fork              9130   17.1    14.5    118    27.1    18.9    143 
 Kelley R.S.              8180   24.1    13.8    175    28.8    16.5    175 
 Lily Lake                9133   10.9    11.5     95    17.0    15.3    111 
 Monte Cristo             8932   32.5    24.9    131    35.2    23.5    150 
 Salt River Summit        7760   19.7    12.2    161      -M    15.2       *
                                                -----                  -----
                Basin Index (%)                  142                    149 

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


 -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.