Wyoming Snow Precipitation Update
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 MONDAY: NOVEMBER 15 , 2010
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BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
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WYOMING
SNAKE RIVER  
 BASE CAMP                7030     2.1     2.0   105      4.7     3.7   127
 COTTONWOOD CREEK         7670     3.7     2.4   154*     7.0     5.2   135
 GRAND TARGHEE            9260     7.8      -M      *     7.4      -M      *
 GRANITE CREEK            6770     1.2     1.6    75*     3.7     3.2   116
 GRASSY LAKE              7265     3.1     3.9    79      6.5     6.0   108
 GROS VENTRE SUMMIT       8750     2.3     2.4    96      2.7     3.0    90
 GUNSIGHT PASS            9820     2.7      -M      *     3.4      -M      *
 LEWIS LAKE DIVIDE        7850     4.0     3.8   105      6.1     5.9   103
 PHILLIPS BENCH           8200     4.4     3.4   129      5.7     4.4   130
 SALT RIVER SUMMIT        7760      .7     1.2    58*     3.7     3.2   116
 SNAKE RIVER STATION      6920     1.1     1.9    58*     4.8     3.9   123
 SPRING CREEK DIVIDE      9000     3.7     3.6   103      5.2     4.6   113
 THUMB DIVIDE             7980     1.6     2.1    76      3.0     3.5    86
 TOGWOTEE PASS            9580     4.7     4.6   102      5.6     4.8   117
 TWO OCEAN PLATEAU        9240     5.1     5.4    94      4.4     5.2    85
 WILLOW CREEK             8380     3.6     4.3    84      8.2     6.2   132
                                                -----                  -----
                Basin wide percent of average     97                    114
UPPER YELLOWSTONE-MADISON
 BEARTOOTH LAKE           9360     3.0     4.7    64      3.4     3.7    92
 BLACK BEAR               8170     4.2     5.5    76      6.3     6.5    97
 CANYON                   7870      .6     1.7    35      2.4     3.2    75
 FISHER CREEK             9100     3.5     5.3    66      4.8     6.1    79
 MADISON PLATEAU          7750     1.9     3.3    58      3.7     4.4    84
 NORTHEAST ENTRANCE       7350      .6     1.1    55*     2.9     2.6   112
 PARKER PEAK              9400     3.3     4.4    75      4.3     3.7   116
 SYLVAN LAKE              8420     2.3     3.9    59      4.3     4.5    96
 THUMB DIVIDE             7980     1.6     2.1    76      3.0     3.5    86
 TWO OCEAN PLATEAU        9240     5.1     5.4    94      4.4     5.2    85
 WHISKEY CREEK            6800      .3     1.9    16      2.8     3.8    74
 WHITE MILL               8700     2.5     3.9    64      3.8     4.8    79
 WOLVERINE                7650      .4     1.5    27      2.1     2.9    72
                                                -----                  -----
                Basin wide percent of average     66                     88
WIND RIVER
 BURROUGHS CREEK          8750     1.6     2.2    73      1.9     3.0    63
 CASTLE CREEK             8400      .5      -M      *     1.3      -M      *
 COLD SPRINGS             9630      .7     2.1    33      1.3     3.1    42
 DEER PARK                9700     2.4     3.7    65      3.1     4.8    65
 HOBBS PARK              10100     1.7     3.7    46      1.9     3.4    56
 LITTLE WARM              9370     1.6     2.2    73      1.5     3.1    48
 SOUTH PASS               9040     1.3     3.1    42      1.9     3.9    49
 ST. LAWRENCE ALT         8620      .5     1.8    28      1.1     2.7    41
 TOGWOTEE PASS            9580     4.7     4.6   102      5.6     4.8   117
 TOWNSEND CREEK           8700      .5     2.0    25      2.2     3.3    67
                                                -----                  -----
                Basin wide percent of average     59                     64
BIGHORN BASIN
 BALD MTN.                9380     3.7     4.5    82      3.6     3.8    95
 BEAR TRAP MEADOW         8200      .6     1.1    55      1.9     2.6    73
 BLACKWATER               9780     3.7     5.1    73      3.7     4.6    80
 BONE SPRINGS DIV         9350     2.2     4.1    54      1.9     3.7    51
 EVENING STAR             9200     3.5     5.2    67      4.7     5.1    92
 GRAVE SPRINGS            8550      .8     2.0    40      1.6     2.8    57
 KIRWIN                   9550     1.7     3.0    57      2.1     3.0    70
 MARQUETTE                8760      .3     2.8    11      1.1     3.3    33
 MIDDLE POWDER            7760     1.1     2.5    44      1.3     3.8    34
 OWL CREEK                8975      .3     1.5    20       .8     1.8    44
 POWDER RIVER PASS        9480     2.6     2.3   113      3.3     2.9   114
 SHELL CREEK              9580     2.6     3.9    67      2.3     3.2    72
 SYLVAN LAKE              8420     2.3     3.9    59      4.3     4.5    96
 SYLVAN ROAD              7120      .7     1.7    41      2.9     4.0    73
 TIMBER CREEK             7950      .5     1.9    26       .9     2.4    38
 YOUNTS PEAK              8350     2.6     2.8    93      2.5     3.3    76
                                                -----                  -----
                Basin wide percent of average     60                     71
SHOSHONE RIVER
 BLACKWATER               9780     3.7     5.1    73      3.7     4.6    80
 EVENING STAR             9200     3.5     5.2    67      4.7     5.1    92
 KIRWIN                   9550     1.7     3.0    57      2.1     3.0    70
 MARQUETTE                8760      .3     2.8    11      1.1     3.3    33
 SYLVAN LAKE              8420     2.3     3.9    59      4.3     4.5    96
 SYLVAN ROAD              7120      .7     1.7    41      2.9     4.0    73
 YOUNTS PEAK              8350     2.6     2.8    93      2.5     3.3    76
                                                -----                  -----
                Basin wide percent of average     60                     77
POWDER-TONGUE
 BEAR TRAP MEADOW         8200      .6     1.1    55      1.9     2.6    73
 BIG GOOSE                7990      .0     1.5     0      1.9     2.6    73
 BONE SPRINGS DIV         9350     2.2     4.1    54      1.9     3.7    51
 BURGESS JUNCTION         7880      .3     2.7    11      1.9     3.2    59
 CLOUD PEAK RESERVOIR     9860     1.8     2.7    67      3.1     3.8    82
 DOME LAKE                8880      .4     3.2    13      2.2     3.7    59
 GRAVE SPRINGS            8550      .8     2.0    40      1.6     2.8    57
 HANSEN SAWMILL           8360      .6     1.3    46      1.2     2.6    46
 LITTLE GOOSE             8870      .3      -M      *     3.4      -M      *
 MIDDLE POWDER            7760     1.1     2.5    44      1.3     3.8    34
 POWDER RIVER PASS        9480     2.6     2.3   113      3.3     2.9   114
 SOLDIER PARK             8720      .4      -M      *     1.6      -M      *
 SUCKER CREEK             8880     1.2     2.4    50      1.6     3.5    46
 TIE CREEK                6870      .1     1.2     8      1.5     3.1    48
                                                -----                  -----
                Basin wide percent of average     43                     61
BELLE FOURCHE
 BLIND PARK               6890      .8     1.5    53      5.4     3.6   150
 COLE CANYON              5910      .8     1.5    53      2.4     2.5    96
 NORTH RAPID CREEK        6130      .7     1.0    70      4.2     3.2   131
                                                -----                  -----
                Basin wide percent of average     58                    129
UPPER N. PLATTE RIVER
 COLUMBINE                9160     4.2     2.6   162      7.4     4.1   180
 DIVIDE PEAK              8880     1.5     3.2    47      4.5     4.3   105
 ELK RIVER                8700     1.8     1.6   113*     5.4     3.5   154
 JOE WRIGHT              10120     5.2     4.5   116      9.2     5.5   167
 NORTH FRENCH CREEK      10130     6.3     5.3   119      7.3     5.3   138
 OLD BATTLE              10000     5.8     5.7   102      7.4     6.0   123
 SAGE CREEK BASIN         7850      .5     1.9    26      3.6     2.5   144
 SOUTH BRUSH CREEK        8440     2.2     1.7   129      4.9     3.9   126
 TOWER                   10500    11.1     7.7   144     12.2     6.9   177
 WEBBER SPRINGS           9250     2.8     4.0    70      6.5     5.2   125
 WILLOW CREEK PASS        9540     3.5     2.4   146      4.9     3.2   153
                                                -----                  -----
                Basin wide percent of average    111                    145
LOWER N. PLATTE - SWEETWATER - LARAMIE
 BROOKLYN LAKE           10240     3.1     3.8    82      4.9     4.2   117
 CASPER MTN.              7900      .7     3.1    23      3.8     3.9    97
 DEADMAN HILL            10220     3.0     3.6    83      5.7     3.8   150
 DEER PARK                9700     2.4     3.7    65      3.1     4.8    65
 LAPRELE CREEK            8375      .3     2.0    15      2.0     3.1    65
 RENO HILL                8400     1.0     2.9    34      3.1     3.9    79
 ROACH                    9700     3.0     2.6   115      5.2     3.7   141
 SAND LAKE               10050     6.2     6.0   103      6.3     4.9   129
 SOUTH PASS               9040     1.3     3.1    42      1.9     3.9    49
 WINDY PEAK               7900      .6     1.4    43      2.9     2.7   107
                                                -----                  -----
                Basin wide percent of average     67                    100
LITTLE SNAKE RIVER
 BATTLE MOUNTAIN          7440      .7     1.1    64*     4.0     3.1   129
 DIVIDE PEAK              8880     1.5     3.2    47      4.5     4.3   105
 OLD BATTLE              10000     5.8     5.7   102      7.4     6.0   123
 SANDSTONE RS             8150      .2     1.3    15*     5.1     3.8   134
 WHISKEY PARK             8950     4.3     3.7   116      7.2     5.0   144
                                                -----                  -----
                Basin wide percent of average     83                    127
UPPER GREEN RIVER
 BIG SANDY OPENING        9080     1.7     2.4    71      2.8     3.0    93
 BLIND BULL SUM           8650     4.0     3.9   103      3.1     4.0    78
 EAST RIM DIVIDE          7930      .8     1.7    47      1.7     2.3    74
 ELKHART PARK G.S.        9400     1.1     2.0    55      2.0     3.1    65
 GROS VENTRE SUMMIT       8750     2.3     2.4    96      2.7     3.0    90
 GUNSIGHT PASS            9820     2.7      -M      *     3.4      -M      *
 KENDALL R.S.             7740      .3     1.7    18      2.3     2.7    85
 LOOMIS PARK              8240     1.6     2.3    70      2.8     3.2    88
 NEW FORK LAKE            8340     1.3     1.5    87      1.7     2.7    63
 POCKET CREEK             9360     1.6      -M      *     2.5      -M      *
 SNIDER BASIN             8060     2.2     1.9   116      3.7     2.9   128
 SPRING CREEK DIVIDE      9000     3.7     3.6   103      5.2     4.6   113
 TRIPLE PEAK              8500     3.8     3.3   115      5.7     4.1   139
                                                -----                  -----
                Basin wide percent of average     85                     95
LOWER GREEN RIVER
 HAMS FORK                7840      .2     1.2    17*     2.8     2.4   117
 HEWINTA                  9519      .0     1.4     0      3.8     3.6   106
 HICKERSON PARK           9145      .0      .9     0      1.9     2.5    76
 HOLE-IN-ROCK             9150      .6     1.0    60      2.4     2.4   100
 INDIAN CREEK             9425     3.4     3.7    92      4.5     4.5   100
 KELLEY R.S.              8180     2.4     2.3   104      4.8     3.7   130
 STEEL CREEK PARK        10200     2.1     2.7    78      4.7     3.7   127
                                                -----                  -----
                Basin wide percent of average     66                    109
UPPER BEAR RIVER
 BUG LAKE                 7950     1.0     2.4    42      4.9     3.8   129
 HAYDEN FORK              9212     1.0     1.8    56      6.5     4.1   159
 KELLEY R.S.              8180     2.4     2.3   104      4.8     3.7   130
 LILY LAKE                9156     1.5     1.8    83      5.4     3.9   138
 MONTE CRISTO             8960     2.4     3.0    80*     5.5     4.7   117
 SALT RIVER SUMMIT        7760      .7     1.2    58*     3.7     3.2   116
 TRIAL LAKE               9992     4.9     3.5   140      7.2     4.5   160
                                                -----                  -----
                Basin wide percent of average     87                    136
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 -M   = Missing data
  *   = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
If the Basin wide percent of average 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 Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average 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.
Reference period for average conditions is 1971-2000.
Provisional data, subject to revision.
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 -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.