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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


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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: MAY 22 , 2008
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     6.9     3.3   209     31.9    26.2   122
 COTTONWOOD CREEK         7670    14.1    10.4   136     30.5    34.7    88
 GRAND TARGHEE            9260    55.0      -M      *    42.7      -M      *
 GRANITE CREEK            6770     5.9     5.0   118     26.0    24.1   108
 GRASSY LAKE              7265    26.8    22.0   122     50.7    43.8   116
 GROS VENTRE SUMMIT       8750     4.6     7.5    61     17.6    16.9   104
 GUNSIGHT PASS            9820     7.3      -M      *    18.5      -M      *
 LEWIS LAKE DIVIDE        7850    28.3    24.9   114     42.8    44.3    97
 PHILLIPS BENCH           8200    22.7    20.2   112     39.8    35.6   112
 SALT RIVER SUMMIT        7760      .8     1.5    53     19.4    23.4    83
 SNAKE RIVER STATION      6920     3.5     2.1   167     32.3    27.5   117
 SPRING CREEK DIVIDE      9000    16.7    21.2    79     27.9    32.3    86
 THUMB DIVIDE             7980     7.1     6.6   108     24.6    24.0   103
 TOGWOTEE PASS            9580    28.2    25.8   109     36.4    31.6   115
 TWO OCEAN PLATEAU        9240    41.9    29.0   144     39.3    35.1   112
 WILLOW CREEK             8380    22.7    21.2   107     47.5    41.2   115
                                                -----                  -----
                Basin wide percent of average    115                    106


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    27.3    24.0   114     29.7    26.0   114
 BLACK BEAR               8170    43.1    33.3   129     50.1    49.0   102
 CANYON                   7870    10.7     4.3   249     25.0    19.6   128
 FISHER CREEK             9100      -M    34.0      *    46.5    45.2   103
 MADISON PLATEAU          7750    25.2    15.6   162     38.4    33.0   116
 NORTHEAST ENTRANCE       7350      .5     1.3    38     17.8    16.7   107
 PARKER PEAK              9400    28.6    22.5   127       -M    22.0      *
 SYLVAN LAKE              8420    19.7    17.0   116     33.4    27.6   121
 THUMB DIVIDE             7980     7.1     6.6   108     24.6    24.0   103
 TWO OCEAN PLATEAU        9240    41.9    29.0   144     39.3    35.1   112
 WHISKEY CREEK            6800    14.1     6.1   231     29.6    26.3   113
 WHITE MILL               8700    27.6    22.5   123     33.5    34.0    99
 WOLVERINE                7650      .1     1.1     9     18.1    17.4   104
                                                -----                  -----
                Basin wide percent of average    134                    109


WIND RIVER

 BURROUGHS CREEK          8750    10.1     7.6   133     22.2    21.6   103
 COLD SPRINGS             9630      .2     1.6    12     14.7    16.2    91
 DEER PARK                9700    13.4    15.1    89     25.9    29.8    87
 HOBBS PARK              10100    14.5    14.6    99     20.9    19.9   105
 LITTLE WARM              9370      .8     4.9    16     18.3    19.1    96
 SOUTH PASS               9040     7.9    10.3    77     22.7    25.2    90
 ST. LAWRENCE ALT         8620      .5     1.5    33     12.7    14.3    89
 TOGWOTEE PASS            9580    28.2    25.8   109     36.4    31.6   115
 TOWNSEND CREEK           8700      .6     3.5    17     17.0    17.9    95
                                                -----                  -----
                Basin wide percent of average     90                     98


BIGHORN BASIN

 BALD MTN.                9380    17.3    21.2    82     21.3    24.3    88
 BEAR TRAP MEADOW         8200      .1      .0           14.6    13.2   111
 BLACKWATER               9780    28.7    28.3   101     31.0    27.5   113
 BONE SPRINGS DIV         9350    15.3    13.4   114     24.4    21.1   116
 EVENING STAR             9200    28.0    30.6    92     41.4    33.0   125
 GRAVE SPRINGS            8550     6.8     3.6   189     15.0    15.3    98
 KIRWIN                   9550     8.2     9.2    89     18.9    16.5   115
 MARQUETTE                8760     5.0     7.0    71     16.1    16.7    96
 MIDDLE POWDER            7760     8.7     7.2   121     15.0    18.2    82
 OWL CREEK                8975      .4     1.2    33      9.9    10.2    97
 POWDER RIVER PASS        9480     7.2     5.4   133     20.4    18.5   110
 SHELL CREEK              9580    17.2    14.3   120     21.9    19.4   113
 SYLVAN LAKE              8420    19.7    17.0   116     33.4    27.6   121
 SYLVAN ROAD              7120      .4      .7    57       -M    22.5      *
 TIMBER CREEK             7950      .9     1.3    69     13.7    13.3   103
 YOUNTS PEAK              8350    13.4    12.4   108     22.1    21.0   105
                                                -----                  -----
                Basin wide percent of average    103                    108


SHOSHONE RIVER

 BLACKWATER               9780    28.7    28.3   101     31.0    27.5   113
 EVENING STAR             9200    28.0    30.6    92     41.4    33.0   125
 KIRWIN                   9550     8.2     9.2    89     18.9    16.5   115
 MARQUETTE                8760     5.0     7.0    71     16.1    16.7    96
 SYLVAN LAKE              8420    19.7    17.0   116     33.4    27.6   121
 SYLVAN ROAD              7120      .4      .7    57       -M    22.5      *
 YOUNTS PEAK              8350    13.4    12.4   108     22.1    21.0   105
                                                -----                  -----
                Basin wide percent of average     98                    114


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .1      .0           14.6    13.2   111
 BIG GOOSE                7990     6.9     7.3    95     18.9    15.5   122
 BONE SPRINGS DIV         9350    15.3    13.4   114     24.4    21.1   116
 BURGESS JUNCTION         7880    13.7     7.2   190     21.5    17.7   121
 CLOUD PEAK RESERVOIR     9860    16.1    12.3   131     23.7    20.4   116
 DOME LAKE                8880     9.1     7.2   126     22.2    19.6   113
 GRAVE SPRINGS            8550     6.8     3.6   189     15.0    15.3    98
 HANSEN SAWMILL           8360      .7      .9    78       -M    13.1      *
 MIDDLE POWDER            7760     8.7     7.2   121     15.0    18.2    82
 POWDER RIVER PASS        9480     7.2     5.4   133     20.4    18.5   110
 SUCKER CREEK             8880    15.3     7.6   201     25.5    20.4   125
 TIE CREEK                6870      .5      .2   250     18.6    16.2   115
                                                -----                  -----
                Basin wide percent of average    139                    112


BELLE FOURCHE

 BLIND PARK               6890      -M      .0      *    16.6    16.8    99
 COLE CANYON              5910      .0      .0   100     14.7    11.9   124
 NORTH RAPID CREEK        6130      -M      .1      *    16.7    13.2   127
                                                -----                  -----
                Basin wide percent of average       *                   115


UPPER N. PLATTE RIVER

 COLUMBINE                9160    13.9     8.0   174     35.1    31.4   112
 DIVIDE PEAK              8880    13.3     8.7   153     29.1    26.6   109
 ELK RIVER                8700     7.4     4.2   176     28.7    25.2   114
 JOE WRIGHT              10120    24.6    21.8   113     36.7    33.5   110
 NORTH FRENCH CREEK      10130    29.1    30.4    96     37.4    33.0   113
 OLD BATTLE              10000    34.7    32.3   107     48.1    43.1   112
 SAGE CREEK BASIN         7850      .0     5.0     0     20.6    15.4   134
 SOUTH BRUSH CREEK        8440      .2     4.2     5     22.1    22.7    97
 TOWER                   10500    47.3    49.2    96       -M    48.7      *
 WEBBER SPRINGS           9250    18.9    13.2   143     38.0    33.7   113
 WILLOW CREEK PASS        9540    17.8     7.9   225     21.5    17.8   121
                                                -----                  -----
                Basin wide percent of average    112                    112


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    15.1    18.7    81     28.3    30.0    94
 CASPER MTN.              7900    10.4     8.2   127     22.2    22.8    97
 DEADMAN HILL            10220    20.2    15.8   128     26.2    23.7   111
 DEER PARK                9700    13.4    15.1    89     25.9    29.8    87
 LAPRELE CREEK            8375      .0     2.1     0     16.8    19.1    88
 RENO HILL                8400    12.1     6.7   181     26.4    23.5   112
 ROACH                    9700    16.5    10.2   162     28.8    25.3   114
 SAND LAKE               10050    31.9    32.7    98     37.9    32.9   115
 SOUTH PASS               9040     7.9    10.3    77     22.7    25.2    90
 WINDY PEAK               7900      .8      .8   100     15.4    16.0    96
                                                -----                  -----
                Basin wide percent of average    106                    101


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100     20.7    20.3   102
 DIVIDE PEAK              8880    13.3     8.7   153     29.1    26.6   109
 OLD BATTLE              10000    34.7    32.3   107     48.1    43.1   112
 SANDSTONE RS             8150     1.9     1.7   112     26.0    24.0   108
 WHISKEY PARK             8950    31.9    22.1   144     43.6    36.8   118
                                                -----                  -----
                Basin wide percent of average    126                    111


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     1.0     6.1    16     16.2    17.8    91
 BLIND BULL SUM           8650    24.8    22.5   110     21.3    27.2    78
 EAST RIM DIVIDE          7930      .1     6.3     2     13.5    15.4    88
 ELKHART PARK G.S.        9400     2.0     7.1    28     14.2    18.1    78
 GROS VENTRE SUMMIT       8750     4.6     7.5    61     17.6    16.9   104
 GUNSIGHT PASS            9820     7.3      -M      *    18.5      -M      *
 KENDALL R.S.             7740      .1      .0           16.0    18.0    89
 LOOMIS PARK              8240     1.5     6.8    22     20.9    21.7    96
 NEW FORK LAKE            8340      .0     1.2     0       -M    15.1      *
 SNIDER BASIN             8060      .4     4.5     9     16.4    19.9    82
 SPRING CREEK DIVIDE      9000    16.7    21.2    79     27.9    32.3    86
 TRIPLE PEAK              8500    14.4    12.4   116     34.2    31.0   110
                                                -----                  -----
                Basin wide percent of average     69                     91


LOWER GREEN RIVER

 HAMS FORK                7840      .1      .0           13.3    16.3    82
 HEWINTA                  9519      .1     2.3     4     21.4    19.6   109
 HICKERSON PARK           9145      .8      .7   114     12.6    11.9   106
 HOLE-IN-ROCK             9150      -M      .6      *    13.4    11.5   117
 INDIAN CREEK             9425      -M    20.4      *      -M    31.6      *
 KELLEY R.S.              8180     4.6     6.1    75     21.9    25.4    86
 STEEL CREEK PARK        10200    17.8    16.1   111     23.9    22.3   107
                                                -----                  -----
                Basin wide percent of average     92                    100


UPPER BEAR RIVER

 BUG LAKE                 7950     8.8     7.0   126     20.4    24.3    84
 HAYDEN FORK              9212     1.1     4.5    24     28.7    27.5   104
 KELLEY R.S.              8180     4.6     6.1    75     21.9    25.4    86
 LILY LAKE                9156     2.0     4.0    50     22.5    23.2    97
 MONTE CRISTO             8960    18.2    18.8    97     31.2    33.1    94
 SALT RIVER SUMMIT        7760      .8     1.5    53     19.4    23.4    83
 TRIAL LAKE               9992    13.5    20.1    67     29.2    32.2    91
                                                -----                  -----
                Basin wide percent of average     79                     92

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


 -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.