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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: FEBRUARY 26 , 2015
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 Base Camp                7030   14.4    13.3    108    15.7    17.0     92
 Black Bear               8170   23.7    28.9     82    23.9    30.3     79
 Blind Bull Sum           8650   21.1    17.5    121    14.4    15.7     92
 Cottonwood Creek         7670   18.8    16.3    115    21.9    19.2    114
 East Rim Divide          7930   11.1     7.8    142     9.7     9.4    103
 Grand Targhee            9260   31.2    29.2    107    25.5    24.5    104
 Granite Creek            6770     -M    13.4       *     -M    16.2       *
 Grassy Lake              7265   24.9    25.6     97    24.9    29.1     86
 Gros Ventre Summit       8750   10.3     9.5    108     8.5     9.9     86
 Gunsight Pass            9820   10.9    10.4    105    10.6    10.6    100
 Lewis Lake Divide        7850   21.3    25.1     85    23.2    28.4     82
 Phillips Bench           8200   19.8    19.3    103    21.2    22.4     95
 Salt River Summit        7760    9.7    10.4     93    11.6    13.2     88
 Snake River Station      6920   13.7    14.0     98    16.6    18.4     90
 Spring Creek Divide      9000   21.8    18.0    121    20.9    19.0    110
 Thumb Divide             7980    9.1    11.8     77    10.0    14.4     69
 Togwotee Pass            9580   19.8    17.4    114    21.3    19.1    112
 Two Ocean Plateau        9240   22.4    21.3    105    20.0    21.4     93
 Willow Creek             8380   20.9    21.9     95    24.1    26.4     91
 Younts Peak              8350     -M    11.5       *     -M    12.4       *
                                                -----                  -----
                Basin Index (%)                  102                     93


MADISON-GALLATIN

 Black Bear               8170   23.7    28.9     82    23.9    30.3     79
 Canyon                   7870    9.6    10.3     93    10.7    12.8     84
 Madison Plateau          7750   13.9    17.5     79    14.1    20.8     68
 West Yellowstone         6700    7.4     8.7     85     8.7    11.4     76
 Whiskey Creek            6800    9.2    11.8     78    11.0    16.0     69
                                                -----                  -----
                Basin Index (%)                   83                     75


YELLOWSTONE

 Beartooth Lake           9360   18.1    16.2    112    17.3    15.5    112
 Burnt Mtn                5880    3.0     4.0     75    10.2     9.2    111
 Canyon                   7870    9.6    10.3     93    10.7    12.8     84
 Cole Creek               7850   11.2     9.3    120    10.5     8.9    118
 Evening Star             9200   22.4    18.9    119    23.6    21.8    108
 Fisher Creek             9100   26.6    25.2    106    24.7    25.1     98
 Northeast Entrance       7350    9.4     7.8    121    11.9     9.8    121
 Parker Peak              9400   18.7    15.6    120    17.9    13.8    130
 Sylvan Lake              8420   14.0    15.6     90    16.4    17.7     93
 Thumb Divide             7980    9.1    11.8     77    10.0    14.4     69
 Two Ocean Plateau        9240   22.4    21.3    105    20.0    21.4     93
 White Mill               8700   22.2    18.0    123    20.3    18.7    109
 Wolverine                7650   10.9     8.5    128    11.2     9.8    114
                                                -----                  -----
                Basin Index (%)                  108                    103


WIND RIVER

 Burroughs Creek          8750   12.0      -M       *   13.8      -M       *
 Castle Creek             8400    7.3      -M       *    7.3      -M       *
 Cold Springs             9630    6.4     5.4    119     6.9     7.3     95
 Deer Park                9700    8.3    10.7     78    10.7    14.9     72
 Hobbs Park              10100    7.7     9.3     83     7.8     9.3     84
 Kirwin                   9550    8.8     6.8    129    10.1     8.6    117
 Little Warm              9370    8.2     7.8    105     9.3     9.7     96
 Owl Creek                8975    4.1     3.8    108     5.6     4.2    133
 South Pass               9040    8.6    11.1     77     8.7    13.2     66
 St. Lawrence Alt         8620    3.5     5.0     70     4.9     6.3     78
 Togwotee Pass            9580   19.8    17.4    114    21.3    19.1    112
 Townsend Creek           8700    5.0     6.3     79     6.8     8.5     80
                                                -----                  -----
                Basin Index (%)                   96                     91


BIGHORN BASIN

 Bald Mtn.                9380   13.8    14.3     97    10.7    12.8     84
 Bear Trap Meadow         8200    7.4     4.2    176     6.8     6.0    113
 Bone Springs Div         9350   12.0    11.6    103    10.2    11.4     89
 Grave Springs            8550    7.4     6.5    114     6.4     7.7     83
 Kirwin                   9550    8.8     6.8    129    10.1     8.6    117
 Marquette                8760    4.5      -M       *    6.4      -M       *
 Middle Powder            7760    9.9     7.8    127      -M     8.6       *
 Owl Creek                8975    4.1     3.8    108     5.6     4.2    133
 Powder River Pass        9480    9.5     7.7    123    10.2     9.4    109
 Shell Creek              9580   10.4    11.2     93     9.8    10.3     95
 Timber Creek             7950    5.1     3.2    159     6.8     5.1    133
                                                -----                  -----
                Basin Index (%)                  115                    101


SHOSHONE RIVER

 Blackwater               9780   17.1    16.8    102    17.8    15.8    113
 Evening Star             9200   22.4    18.9    119    23.6    21.8    108
 Marquette                8760    4.5      -M       *    6.4      -M       *
 Sylvan Road              7120   10.1     9.1    111    13.4    13.7     98
 Younts Peak              8350     -M    11.5       *     -M    12.4       *
                                                -----                  -----
                Basin Index (%)                  111                    107


POWDER RIVER

 Bear Trap Meadow         8200    7.4     4.2    176     6.8     6.0    113
 Cloud Peak Reservoir     9860   11.8    10.2    116    10.6     9.3    114
 Grave Springs            8550    7.4     6.5    114     6.4     7.7     83
 Hansen Sawmill           8360    5.9     4.6    128     6.8     5.9    115
 Middle Powder            7760    9.9     7.8    127      -M     8.6       *
 Powder River Pass        9480    9.5     7.7    123    10.2     9.4    109
 Soldier Park             8720    5.0      -M       *    6.6      -M       *
                                                -----                  -----
                Basin Index (%)                  127                    107


TONGUE RIVER

 Big Goose                7990    7.0     6.1    115     7.7     7.7    100
 Bone Springs Div         9350   12.0    11.6    103    10.2    11.4     89
 Burgess Junction         7880    9.3     8.0    116     8.9     8.8    101
 Dome Lake                8880    9.3     8.4    111     8.4     9.8     86
 Little Goose             8870     -M      -M       *     -M      -M       *
 Sucker Creek             8880   10.0     8.7    115     9.9    10.3     96
 Tie Creek                6870    5.0     4.2    119     8.5     8.1    105
                                                -----                  -----
                Basin Index (%)                  112                     96


BELLE FOURCHE

 Cole Canyon              5910    3.5     4.9     71     6.6     7.0     94
                                                -----                  -----
                Basin Index (%)                   71                     94


CHEYENNE RIVER BASIN

 Blind Park               6890    5.0     6.2     81     7.5     9.2     82
 North Rapid Creek        6130    5.7     5.8     98     7.8     7.4    105
                                                -----                  -----
                Basin Index (%)                   89                     92


UPPER N. PLATTE

 Arapaho Ridge           10960   13.8    16.1     86    15.2    17.3     88
 Blackhall Mtn            9820   17.7      -M       *   20.5      -M       *
 Columbine                9160   16.5    19.3     85    17.6    20.0     88
 Divide Peak              8880    5.5    15.3     36     9.7    16.5     59
 Joe Wright              10120   13.5    16.0     84    20.9    19.6    107
 Laprele Creek            8375    5.6     7.5     75     6.3     9.2     68
 Med Bow                 10500   24.8      -M       *   22.1      -M       *
 North French Creek      10130   18.4    20.6     89    18.4    20.7     89
 Never Summer            10280   12.9    15.8     82    13.0      -M       *
 Old Battle              10000   17.4    23.6     74    17.4    27.4     64
 Rawah                    9020    9.2     8.4    110    12.1    10.6    114
 Sage Creek Basin         7850    6.1    10.5     58      -M    11.5       *
 Sand Lake               10050   17.8    20.7     86    16.5    18.6     89
 South Brush Creek        8440    6.6     9.9     67     7.7    11.5     67
 Tower                   10500     -M    35.6       *     -M    31.2       *
 Webber Springs           9250   13.2    18.3     72    14.5    20.8     70
 Willow Creek Pass        9540    7.6     9.2     83     9.6    10.1     95
 Zirkel                   9340   21.8    22.6     96    23.5    23.0    102
                                                -----                  -----
                Basin Index (%)                   80                     84


SWEETWATER

 Deer Park                9700    8.3    10.7     78    10.7    14.9     72
 Larsen Creek             9000    6.1     9.3     66     8.0      -M       *
 South Pass               9040    8.6    11.1     77     8.7    13.2     66
                                                -----                  -----
                Basin Index (%)                   74                     69


LOWER N. PLATTE

 Casper Mtn.              7900    7.3     9.8     74     7.2    10.9     66
 Laprele Creek            8375    5.6     7.5     75     6.3     9.2     68
 Reno Hill                8400    8.2     9.6     85     9.4    10.9     86
 Windy Peak               7900    5.2     5.7     91     5.4     7.7     70
                                                -----                  -----
                Basin Index (%)                   81                     73


LARAMIE RIVER

 Brooklyn Lake           10240   15.5    14.7    105    16.7    15.8    106
 Cinnabar Park            9574   11.9    16.7     71    17.2    19.4     89
 Crow Creek               8330    4.0     6.6     61     7.2     7.7     94
 Deadman Hill            10220   12.7    12.3    103    12.7    12.5    102
 Rawah                    9020    9.2     8.4    110    12.1    10.6    114
 Roach                    9700    9.1    12.2     75    11.9    14.4     83
                                                -----                  -----
                Basin Index (%)                   88                     97


S. PLATTE

 Black Mountain           8920    7.4      -M       *    9.5      -M       *
 Crow Creek               8330    4.0     6.6     61     7.2     7.7     94
 Deadman Hill            10220   12.7    12.3    103    12.7    12.5    102
                                                -----                  -----
                Basin Index (%)                   88                     99


LITTLE SNAKE RIVER

 Battle Mountain          7440    5.8     9.7     60     8.0    11.9     67
 Divide Peak              8880    5.5    15.3     36     9.7    16.5     59
 Elk River                8700   11.0    14.9     74    11.5    15.7     73
 Little Snake River       8915   16.8    19.5     86    20.8    24.7     84
 Old Battle              10000   17.4    23.6     74    17.4    27.4     64
 Sage Creek Basin         7850    6.1    10.5     58      -M    11.5       *
 Sandstone RS             8150    5.4    10.3     52      -M    14.9       *
 Whiskey Park             8950   19.4    20.8     93    19.1    22.0     87
                                                -----                  -----
                Basin Index (%)                   70                     73


UPPER GREEN RIVER

 Big Sandy Opening        9080    8.4     9.8     86     7.8    10.3     76
 Blind Bull Sum           8650   21.1    17.5    121    14.4    15.7     92
 East Rim Divide          7930   11.1     7.8    142     9.7     9.4    103
 Elkhart Park G.S.        9400    8.9     9.2     97     9.5    10.3     92
 Gros Ventre Summit       8750   10.3     9.5    108     8.5     9.9     86
 Gunsight Pass            9820   10.9    10.4    105    10.6    10.6    100
 Kendall R.S.             7740   10.8     9.6    112    10.4    11.5     90
 Loomis Park              8240   13.0    11.5    113    13.9    13.8    101
 New Fork Lake            8340    9.4     8.0    118     9.5     8.6    110
 Pocket Creek             9360    6.2      -M       *    4.8      -M       *
 Snider Basin             8060   12.0     9.4    128    13.0    11.3    115
 Spring Creek Divide      9000   21.8    18.0    121    20.9    19.0    110
 Triple Peak              8500   21.0    16.5    127    22.6    19.9    114
                                                -----                  -----
                Basin Index (%)                  116                    100


LOWER GREEN RIVER

 Blacks Fork Jct          8870    5.2      -M       *    7.5      -M       *
 Buck Pasture             9700    9.1      -M       *   10.6      -M       *
 EF Blacks Fork GS        9360    5.8      -M       *    7.0      -M       *
 Hams Fork                7840    8.3     9.0     92     7.4     9.0     82
 Hewinta                  9519    6.3     7.6     83     8.1    10.6     76
 Hickerson Park           9145    4.9     5.6     88     5.4     7.4     73
 Hole-in-Rock             9150    4.1     5.4     76     5.3     6.9     77
 Indian Creek             9425   16.6    18.3     91    15.4    17.5     88
 Kelley R.S.              8180   10.6    11.7     91    11.5    14.4     80
 Spirit Lk               10235    5.6      -M       *    8.0      -M       *
 Steel Creek Park        10200     -M    11.2       *    9.7    12.1     80
                                                -----                  -----
                Basin Index (%)                   88                     81


UPPER BEAR RIVER

 Bear River RS            8777    5.1      -M       *    6.0      -M       *
 Bug Lake                 7950   12.0    14.4     83    10.4    15.2     68
 Burts Miller Ranch       8000    3.6      -M       *    3.3      -M       *
 Chalk Creek #1           8993   11.7    17.8     66    12.6    19.1     66
 Hayden Fork              9212    7.0    11.7     60    11.7    16.0     73
 Kelley R.S.              8180   10.6    11.7     91    11.5    14.4     80
 Lily Lake                9156    6.7     9.9     68     7.5    13.0     58
 Monte Cristo             8960   15.7    20.2     78    15.1    20.2     75
 Salt River Summit        7760    9.7    10.4     93    11.6    13.2     88
                                                -----                  -----
                Basin Index (%)                   76                     72

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


 -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.