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 FRIDAY: NOVEMBER 23 , 2007
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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     1.6     2.9    55      8.0     4.7   170
 COTTONWOOD CREEK         7670      -M     3.3      *     6.2     6.4    97
 GRANITE CREEK            6770      .8     2.3    35      6.6     4.1   161
 GRASSY LAKE              7265     3.7     5.5    67     11.4     7.5   152
 GROS VENTRE SUMMIT       8750     3.8     3.0   127      5.6     3.5   160
 LEWIS LAKE DIVIDE        7850     5.4     5.5    98     10.7     7.6   141
 PHILLIPS BENCH           8200     3.8     4.7    81      8.5     5.7   149
 SALT RIVER SUMMIT        7760      .1     1.8     6      2.8     4.0    70
 SNAKE RIVER STATION      6920      .6     2.8    21      8.2     5.0   164
 SPRING CREEK DIVIDE      9000     2.6     5.0    52      4.3     5.8    74
 THUMB DIVIDE             7980     2.1     2.9    72      6.3     4.3   147
 TOGWOTEE PASS            9580     7.2     5.6   129      8.5     5.9   144
 TWO OCEAN PLATEAU        9240    10.9     6.7   163     10.5     6.5   162
 WILLOW CREEK             8380      -M     5.7      *     8.7     7.5   116
                                                -----                  -----
                Basin wide percent of average     87                    135
UPPER YELLOWSTONE-MADISON
 BEARTOOTH LAKE           9360     8.1     5.5   147      7.9     4.6   172
 BLACK BEAR               8170     7.3     7.2   101     10.3     8.3   124
 CANYON                   7870     3.1     2.3   135      6.2     3.9   159
 FISHER CREEK             9100    11.6     6.7   173     11.3     7.7   147
 MADISON PLATEAU          7750     3.6     4.3    84      7.5     5.6   134
 NORTHEAST ENTRANCE       7350      .5     1.5    33      4.9     3.2   153
 PARKER PEAK              9400     7.1     5.3   134      7.8     4.4   177
 SYLVAN LAKE              8420     4.1     4.9    84      8.4     5.6   150
 THUMB DIVIDE             7980     2.1     2.9    72      6.3     4.3   147
 TWO OCEAN PLATEAU        9240    10.9     6.7   163     10.5     6.5   162
 WHISKEY CREEK            6800     1.4     2.6    54      6.4     4.7   136
 WHITE MILL               8700     7.5     4.9   153      8.2     6.0   137
 WOLVERINE                7650      .5     2.0    25      5.0     3.6   139
                                                -----                  -----
                Basin wide percent of average    119                    147
WIND RIVER
 BURROUGHS CREEK          8750     4.9     2.8   175      7.2     3.8   189
 COLD SPRINGS             9630      .7     2.5    28      3.2     3.6    89
 DEER PARK                9700     1.6     4.0    40      4.2     5.7    74
 HOBBS PARK              10100     1.7     4.3    40      3.4     3.9    87
 LITTLE WARM              9370     2.0     2.6    77      4.3     3.7   116
 SOUTH PASS               9040      .6     3.8    16      3.4     4.8    71
 ST. LAWRENCE ALT         8620      .2     2.0    10      1.9     3.0    63
 TOGWOTEE PASS            9580     7.2     5.6   129      8.5     5.9   144
 TOWNSEND CREEK           8700      .0     2.3     0      3.2     3.8    84
                                                -----                  -----
                Basin wide percent of average     63                    103
BIGHORN BASIN
 BALD MTN.                9380     3.9     5.0    78      4.1     4.4    93
 BEAR TRAP MEADOW         8200     1.1     1.3    85      2.6     3.0    87
 BLACKWATER               9780     8.6     6.2   139      8.0     5.7   140
 BONE SPRINGS DIV         9350     3.8     4.6    83      4.9     4.2   117
 EVENING STAR             9200     7.9     6.4   123     10.6     6.5   163
 GRAVE SPRINGS            8550     1.4     2.3    61      3.5     3.2   109
 KIRWIN                   9550     5.0     3.4   147      6.1     3.5   174
 MARQUETTE                8760      .0     3.1     0      3.9     3.7   105
 MIDDLE POWDER            7760     1.7     2.9    59      3.2     4.3    74
 OWL CREEK                8975     1.5     1.6    94      3.4     2.0   170
 POWDER RIVER PASS        9480     2.5     2.6    96      4.4     3.5   126
 SHELL CREEK              9580     5.4     4.4   123      6.2     3.8   163
 SYLVAN LAKE              8420     4.1     4.9    84      8.4     5.6   150
 SYLVAN ROAD              7120     1.0     2.4    42      8.1     5.2   156
 TIMBER CREEK             7950      .4     2.0    20      4.2     2.7   156
 YOUNTS PEAK              8350     4.1     3.5   117      7.4     4.2   176
                                                -----                  -----
                Basin wide percent of average     93                    136
SHOSHONE RIVER
 BLACKWATER               9780     8.6     6.2   139      8.0     5.7   140
 EVENING STAR             9200     7.9     6.4   123     10.6     6.5   163
 KIRWIN                   9550     5.0     3.4   147      6.1     3.5   174
 MARQUETTE                8760      .0     3.1     0      3.9     3.7   105
 SYLVAN LAKE              8420     4.1     4.9    84      8.4     5.6   150
 SYLVAN ROAD              7120     1.0     2.4    42      8.1     5.2   156
 YOUNTS PEAK              8350     4.1     3.5   117      7.4     4.2   176
                                                -----                  -----
                Basin wide percent of average    103                    153
POWDER-TONGUE
 BEAR TRAP MEADOW         8200     1.1     1.3    85      2.6     3.0    87
 BIG GOOSE                7990     1.5     1.8    83      4.9     2.8   175
 BONE SPRINGS DIV         9350     3.8     4.6    83      4.9     4.2   117
 BURGESS JUNCTION         7880     2.1     2.9    72      4.4     3.7   119
 CLOUD PEAK RESERVOIR     9860     3.7     3.1   119      5.9     4.3   137
 DOME LAKE                8880     2.4     3.6    67      5.7     4.2   136
 GRAVE SPRINGS            8550     1.4     2.3    61      3.5     3.2   109
 HANSEN SAWMILL           8360      -M     1.6      *      -M     2.9      *
 MIDDLE POWDER            7760     1.7     2.9    59      3.2     4.3    74
 POWDER RIVER PASS        9480     2.5     2.6    96      4.4     3.5   126
 SUCKER CREEK             8880     2.6     2.6   100      4.5     4.0   112
 TIE CREEK                6870      .3     1.1    27      4.3     3.4   126
                                                -----                  -----
                Basin wide percent of average     80                    119
BELLE FOURCHE
 BLIND PARK               6890      .9     1.6    56      2.0     4.0    50
 COLE CANYON              5910      .0     1.7     0      1.9     2.7    70
 NORTH RAPID CREEK        6130      .8     1.3    62      1.3     3.5    37
                                                -----                  -----
                Basin wide percent of average     37                     51
UPPER N. PLATTE RIVER
 COLUMBINE                9160      .4     3.7    11      4.4     5.1    86
 DIVIDE PEAK              8880     2.5     4.0    62      3.7     5.1    73
 ELK RIVER                8700      .7     2.2    32      3.5     4.3    81
 JOE WRIGHT              10120     5.1     5.3    96      6.4     6.5    98
 NORTH FRENCH CREEK      10130     4.7     6.4    73      6.1     6.3    97
 OLD BATTLE              10000     3.5     7.2    49      5.3     7.4    72
 SAGE CREEK BASIN         7850      .0     2.3     0      3.0     3.0   100
 SOUTH BRUSH CREEK        8440     1.4     2.2    64      4.2     4.5    93
 TOWER                   10500     4.1     9.9    41      6.1     8.5    72
 WEBBER SPRINGS           9250     1.9     5.1    37      4.5     6.3    71
 WILLOW CREEK PASS        9540     4.0     2.9   138      4.0     3.7   108
                                                -----                  -----
                Basin wide percent of average     55                     84
LOWER N. PLATTE - SWEETWATER - LARAMIE
 BROOKLYN LAKE           10240     2.2     4.7    47      4.0     5.1    78
 CASPER MTN.              7900      .8     3.8    21      4.0     4.5    89
 DEADMAN HILL            10220     4.7     4.3   109      4.1     4.5    91
 DEER PARK                9700     1.6     4.0    40      4.2     5.7    74
 LAPRELE CREEK            8375      .0     2.5     0      2.5     3.6    69
 RENO HILL                8400     1.9     3.5    54      4.1     4.4    93
 ROACH                    9700     2.4     3.3    73      3.9     4.4    89
 SAND LAKE               10050     4.9     7.4    66      5.8     5.9    98
 SOUTH PASS               9040      .6     3.8    16      3.4     4.8    71
 WINDY PEAK               7900      .4     1.8    22      2.2     3.1    71
                                                -----                  -----
                Basin wide percent of average     50                     83
LITTLE SNAKE RIVER
 BATTLE MOUNTAIN          7440      -M     1.4      *     2.4     3.6    67
 DIVIDE PEAK              8880     2.5     4.0    62      3.7     5.1    73
 OLD BATTLE              10000     3.5     7.2    49      5.3     7.4    72
 SANDSTONE RS             8150      -M     1.7      *     2.7     4.6    59
 WHISKEY PARK             8950     2.5     4.7    53      4.9     6.1    80
                                                -----                  -----
                Basin wide percent of average     53                     71
UPPER GREEN RIVER
 BIG SANDY OPENING        9080     1.4     3.1    45      2.5     3.5    71
 BLIND BULL SUM           8650     3.6     5.2    69      4.6     5.0    92
 EAST RIM DIVIDE          7930      .0     2.3     0      2.6     2.9    90
 ELKHART PARK G.S.        9400     1.8     2.6    69      3.3     3.7    89
 GROS VENTRE SUMMIT       8750     3.8     3.0   127      5.6     3.5   160
 KENDALL R.S.             7740     1.0     2.3    43      3.7     3.3   112
 LOOMIS PARK              8240     1.8     3.2    56      3.5     3.9    90
 NEW FORK LAKE            8340     1.2     2.0    60      2.6     3.2    81
 SNIDER BASIN             8060      .4     2.6    15      2.3     3.6    64
 SPRING CREEK DIVIDE      9000     2.6     5.0    52      4.3     5.8    74
 TRIPLE PEAK              8500     2.7     4.6    59      5.9     5.1   116
                                                -----                  -----
                Basin wide percent of average     57                     94
LOWER GREEN RIVER
 HAMS FORK                7840      .0     1.7     0      1.8     2.9    62
 HEWINTA                  9519      .0     1.7     0      4.7     4.2   112
 HICKERSON PARK           9145      .0     1.2     0      2.9     2.8   104
 HOLE-IN-ROCK             9150      .1     1.2     8      3.6     2.6   138
 INDIAN CREEK             9425     2.2     4.9    45      3.4     5.5    62
 KELLEY R.S.              8180      .9     3.1    29      3.4     4.5    76
 STEEL CREEK PARK        10200     1.2     3.2    37      5.2     4.4   118
                                                -----                  -----
                Basin wide percent of average     26                     93
UPPER BEAR RIVER
 BUG LAKE                 7950      -M     3.1      *     1.5     4.6    33
 HAYDEN FORK              9212      .6     2.3    26      3.9     5.0    78
 KELLEY R.S.              8180      .9     3.1    29      3.4     4.5    76
 LILY LAKE                9156      .4     2.3    17      4.2     4.7    89
 MONTE CRISTO             8960     1.0     3.9    26      3.9     5.8    67
 SALT RIVER SUMMIT        7760      .1     1.8     6      2.8     4.0    70
 TRIAL LAKE               9992     1.8     4.4    41      3.3     5.5    60
                                                -----                  -----
                Basin wide percent of average     27                     67
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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 1961-90.
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.