Home
Interactive Maps
WY Weather
WY Climate
Drought
Data/Products
CoCoRaHS
Library
Articles & Publications
Education & Outreach
Site Map
Cooperative Projects
Water Links
Contact Us

Subscribe to our mailing list

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 10:08p, 5/23/18
Temperature 53.7°F
Wind 0.0 mph


Share this page
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 SATURDAY: MARCH 11 , 2017
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING
 

SNAKE RIVER  

 Base Camp                7030     -M    13.8       *     -M    18.3       *
 Black Bear               8170   42.4    31.5    135    47.0    33.1    142 
 Blind Bull Sum           8650   40.2    19.4    207      -M    16.9       *
 Cottonwood Creek         7670   26.6    18.5    144    34.2    20.7    165 
 East Rim Divide          7930   18.5     9.4    197    19.8    10.2    194 
 Grand Targhee            9260   39.9    31.9    125    34.7    25.7    135 
 Granite Creek            6770   30.0    14.6    205    33.8    17.5    193 
 Grassy Lake              7265   36.2    27.6    131    49.5    31.2    159 
 Gros Ventre Summit       8750     -M    10.9       *     -M    10.9       *
 Gunsight Pass            9820   19.4    11.6    167    21.9    11.6    189 
 Lewis Lake Divide        7850   38.0    26.5    143    44.3    30.8    144 
 Phillips Bench           8200   34.7    21.2    164    39.9    24.2    165 
 Salt River Summit        7760   20.4    11.2    182      -M    14.2       *
 Snake River Station      6920   21.4    15.2    141    32.5    19.6    166 
 Spring Creek Divide      9000   36.3    19.6    185      -M    20.4       *
 Thumb Divide             7980   21.7    13.2    164      -M    15.8       *
 Togwotee Pass            9580   30.2    19.5    155    34.1    20.7    165 
 Two Ocean Plateau        9240     -M    23.1       *     -M    23.3       *
 Willow Creek             8380   30.6    24.1    127    44.5    28.5    156 
 Younts Peak              8350   26.2    12.4    211    28.4    13.4    212 
                                                -----                  -----
                Basin Index (%)                  157                    162 
 

MADISON-GALLATIN

 Black Bear               8170   42.4    31.5    135    47.0    33.1    142 
 Canyon                   7870   16.7    11.5    145    23.2    14.0    166 
 Madison Plateau          7750   25.0    19.3    130    32.5    22.8    143 
 West Yellowstone         6700   12.2     9.7    126    20.8    12.4    168 
 Whiskey Creek            6800   15.2    13.2    115    24.0    17.4    138 
                                                -----                  -----
                Basin Index (%)                  131                    148 
 

YELLOWSTONE

 Beartooth Lake           9360   28.9    18.4    157    24.5    16.8    146 
 Burnt Mtn                5880    6.0     4.3    140    11.9    10.2    117 
 Canyon                   7870   16.7    11.5    145    23.2    14.0    166 
 Cole Creek               7850    9.2    11.2     82     6.6     9.9     67 
 Evening Star             9200   34.3    20.9    164      -M    23.4       *
 Fisher Creek             9100   38.1    27.0    141    41.5    27.2    153 
 Northeast Entrance       7350   11.8     8.6    137    17.8    10.5    170 
 Parker Peak              9400   29.6    16.7    177      -M    15.0       *
 Sylvan Lake              8420   22.3    17.0    131    33.6    19.0    177 
 Thumb Divide             7980   21.7    13.2    164      -M    15.8       *
 Two Ocean Plateau        9240     -M    23.1       *     -M    23.3       *
 White Mill               8700   30.4    19.2    158    31.3    20.3    154 
 Wolverine                7650   13.6     9.0    151    19.2    10.5    183 
                                                -----                  -----
                Basin Index (%)                  148                    151 
 

WIND RIVER

 Burroughs Creek          8750   23.1      -M       *   24.8      -M       *
 Castle Creek             8400   12.2      -M       *   14.1      -M       *
 Cold Springs             9630   12.5     5.9    212    14.8     8.0    185 
 Deer Park                9700   28.4    12.1    235    31.9    16.3    196 
 Hobbs Park              10100   22.3    11.0    203    20.4    10.4    196 
 Kirwin                   9550   17.8     7.8    228    20.5     9.4    218 
 Little Warm              9370   15.5     8.7    178    21.1    10.5    201 
 Owl Creek                8975    7.0     4.3    163     8.7     4.6    189 
 South Pass               9040   26.3    12.5    210    23.6    14.5    163 
 St. Lawrence Alt         8620    6.8     5.9    115    12.0     7.0    171 
 Togwotee Pass            9580   30.2    19.5    155    34.1    20.7    165 
 Townsend Creek           8700   12.5     7.4    169    15.8     9.4    168 
                                                -----                  -----
                Basin Index (%)                  189                    183 
 

BIGHORN BASIN

 Bald Mtn.                9380   16.4    16.0    102    14.3    13.9    103 
 Bear Trap Meadow         8200    5.0     4.7    106     6.1     6.6     92 
 Bone Springs Div         9350   14.9    13.3    112    14.3    12.6    113 
 Grave Springs            8550    5.8     7.5     77     6.2     8.3     75 
 Kirwin                   9550   17.8     7.8    228    20.5     9.4    218 
 Marquette                8760    7.6      -M       *   11.7      -M       *
 Middle Powder            7760    6.6     8.8     75     6.2     9.3     67 
 Owl Creek                8975    7.0     4.3    163     8.7     4.6    189 
 Powder River Pass        9480    6.7     8.5     79     9.9    10.2     97 
 Shell Creek              9580   13.9    12.3    113    11.0    11.2     98 
 Timber Creek             7950    5.4     4.1    132     6.9     5.6    123 
                                                -----                  -----
                Basin Index (%)                  114                    114 
 

SHOSHONE RIVER

 Blackwater               9780   34.1    19.1    179    36.6    17.2    213 
 Evening Star             9200   34.3    20.9    164      -M    23.4       *
 Marquette                8760    7.6      -M       *   11.7      -M       *
 Sylvan Road              7120   15.2    10.0    152    27.8    14.6    190 
 Younts Peak              8350   26.2    12.4    211    28.4    13.4    212 
                                                -----                  -----
                Basin Index (%)                  176                    205 
 

POWDER RIVER

 Bear Trap Meadow         8200    5.0     4.7    106     6.1     6.6     92 
 Cloud Peak Reservoir     9860   11.1    11.8     94    12.4    10.3    120 
 Grave Springs            8550    5.8     7.5     77     6.2     8.3     75 
 Hansen Sawmill           8360    7.1     5.2    137     9.1     6.5    140 
 Middle Powder            7760    6.6     8.8     75     6.2     9.3     67 
 Powder River Pass        9480    6.7     8.5     79     9.9    10.2     97 
 Soldier Park             8720   11.0      -M       *    8.8      -M       *
                                                -----                  -----
                Basin Index (%)                   91                     97 
 

TONGUE RIVER

 Big Goose                7990    8.2     6.9    119     9.1     8.4    108 
 Bone Springs Div         9350   14.9    13.3    112    14.3    12.6    113 
 Burgess Junction         7880    8.1     9.3     87     8.9     9.7     92 
 Dome Lake                8880   12.0     9.4    128    11.7    10.6    110 
 Little Goose             8870    8.9      -M       *   11.4      -M       *
 Sucker Creek             8880    9.8    10.1     97     9.6    11.4     84 
 Tie Creek                6870    5.6     4.7    119     9.7     9.0    108 
                                                -----                  -----
                Basin Index (%)                  109                    103 
 

BELLE FOURCHE

 Cole Canyon              5910    3.1     5.1     61     6.0     7.4     81 
                                                -----                  -----
                Basin Index (%)                   61                     81 
 

CHEYENNE RIVER BASIN

 Blind Park               6890    4.3     6.8     63     7.1    10.0     71 
 North Rapid Creek        6130    4.8     6.3     76     6.0     8.1     74 
                                                -----                  -----
                Basin Index (%)                   69                     72 
 

UPPER N. PLATTE

 Arapaho Ridge           10960   23.3    17.7    132    23.5    18.8    125 
 Blackhall Mtn            9820   34.6      -M       *     -M      -M       *
 Columbine                9160   24.2    21.1    115    25.8    21.8    118 
 Divide Peak              8880   18.8    17.0    111    20.8    18.0    116 
 Joe Wright              10120   18.0    18.4     98    25.6    21.4    120 
 Laprele Creek            8375   11.1     8.5    131    10.3    10.1    102 
 Med Bow                 10500   35.9      -M       *   30.8      -M       *
 North French Creek      10130   23.7    23.0    103    24.4    22.5    108 
 Never Summer            10280   21.2    17.0    125    17.2      -M       *
 Old Battle              10000   35.2    25.6    138    35.8    29.8    120 
 Rawah                    9020   11.6     9.3    125    15.0    11.5    130 
 Sage Creek Basin         7850   15.7    11.6    135    15.2    12.4    123 
 Sand Lake               10050   27.6    22.6    122    25.0    20.4    123 
 South Brush Creek        8440   10.7    11.1     96    11.3    12.6     90 
 Tower                   10500   39.2    38.2    103    41.5    33.9    122 
 Webber Springs           9250   28.2    20.2    140    31.5    22.6    139 
 Willow Creek Pass        9540   16.2    10.3    157    17.1    11.0    155 
 Zirkel                   9340   39.8    25.2    158    39.8    24.6    162 
                                                -----                  -----
                Basin Index (%)                  123                    124 
 

SWEETWATER

 Deer Park                9700   28.4    12.1    235    31.9    16.3    196 
 Larsen Creek             9000   19.5    10.4    188    21.0      -M       *
 South Pass               9040   26.3    12.5    210    23.6    14.5    163 
                                                -----                  -----
                Basin Index (%)                  212                    180 
 

LOWER N. PLATTE

 Casper Mtn.              7900   10.8    11.5     94    10.3    11.9     87 
 Laprele Creek            8375   11.1     8.5    131    10.3    10.1    102 
 Reno Hill                8400   11.0    11.2     98    11.5    12.0     96 
 Windy Peak               7900    9.6     6.6    145     9.9     8.5    116 
                                                -----                  -----
                Basin Index (%)                  112                     99 
 

LARAMIE RIVER

 Brooklyn Lake           10240   23.5    16.8    140    20.9    17.4    120 
 Cinnabar Park            9574   18.0    17.8    101    20.3    20.6     99 
 Crow Creek               8330    4.7     7.1     66     7.6     8.4     90 
 Deadman Hill            10220   19.0    13.0    146    18.0    14.0    129 
 Rawah                    9020   11.6     9.3    125    15.0    11.5    130 
 Roach                    9700   15.4    13.4    115    18.2    15.9    114 
                                                -----                  -----
                Basin Index (%)                  119                    114 
 

S. PLATTE

 Black Mountain           8920    9.3      -M       *   10.5      -M       *
 Crow Creek               8330    4.7     7.1     66     7.6     8.4     90 
 Deadman Hill            10220   19.0    13.0    146    18.0    14.0    129 
                                                -----                  -----
                Basin Index (%)                  118                    114 
 

LITTLE SNAKE RIVER

 Battle Mountain          7440   10.7    10.6    101    15.6    12.9    121 
 Divide Peak              8880   18.8    17.0    111    20.8    18.0    116 
 Elk River                8700   20.2    16.9    120    19.1    17.1    112 
 Little Snake River       8915   31.2    20.3    154    36.4    25.8    141 
 Old Battle              10000   35.2    25.6    138    35.8    29.8    120 
 Sage Creek Basin         7850   15.7    11.6    135    15.2    12.4    123 
 Sandstone RS             8150   12.6    11.8    107    15.1    16.0     94 
 Whiskey Park             8950   27.1    23.3    116    28.1    23.9    118 
                                                -----                  -----
                Basin Index (%)                  125                    119 
 

UPPER GREEN RIVER

 Big Sandy Opening        9080   19.8    10.8    183    21.6    11.2    193 
 Blind Bull Sum           8650   40.2    19.4    207      -M    16.9       *
 East Rim Divide          7930   18.5     9.4    197    19.8    10.2    194 
 Elkhart Park G.S.        9400   17.8    10.1    176    21.9    11.1    197 
 Gros Ventre Summit       8750     -M    10.9       *     -M    10.9       *
 Gunsight Pass            9820   19.4    11.6    167    21.9    11.6    189 
 Kendall R.S.             7740   23.1    10.5    220    27.3    12.5    218 
 Loomis Park              8240   26.8    12.7    211    30.3    14.9    203 
 New Fork Lake            8340   16.4     9.0    182    16.2     9.3    174 
 Pocket Creek             9360     -M      -M       *     -M      -M       *
 Snider Basin             8060     -M    10.6       *   25.2    12.2    207 
 Spring Creek Divide      9000   36.3    19.6    185      -M    20.4       *
 Triple Peak              8500   35.3    18.6    190    37.4    21.6    173 
                                                -----                  -----
                Basin Index (%)                  193                    193 
 

LOWER GREEN RIVER

 Blacks Fork Jct          8869   10.4      -M       *   13.6      -M       *
 Buck Pasture             9632   18.7      -M       *   20.6      -M       *
 EF Blacks Fork GS        9360   15.5      -M       *   11.8      -M       *
 Hams Fork                7840   17.1    10.0    171    18.3     9.6    191 
 Hewinta                  9500   12.3     8.6    143    14.2    11.5    123 
 Hickerson Park           9122    8.4     6.4    131     8.6     8.1    106 
 Hole-in-Rock             9168    6.5     6.1    107     9.2     7.6    121 
 Indian Creek             9425   36.6    20.3    180      -M    19.0       *
 Kelley R.S.              8180   24.0    12.7    189    28.3    15.4    184 
 Spirit Lk               10235   13.5      -M       *   14.7      -M       *
 Steel Creek Park        10158   15.4    12.6    122    17.1    13.3    129 
                                                -----                  -----
                Basin Index (%)                  157                    146 
 

UPPER BEAR RIVER

 Bear River RS            8777   12.7      -M       *   15.5      -M       *
 Bug Lake                 7987     -M    16.1       *     -M    16.4       *
 Burts Miller Ranch       8000    7.2      -M       *    8.3      -M       *
 Chalk Creek #1           9171   31.6    20.0    158    32.0    20.8    154 
 Hayden Fork              9130   22.7    13.4    169      -M    17.4       *
 Kelley R.S.              8180   24.0    12.7    189    28.3    15.4    184 
 Lily Lake                9133   14.5    11.1    131    17.0    14.1    121 
 Monte Cristo             8932   33.5    22.9    146    31.8    21.8    146 
 Salt River Summit        7760   20.4    11.2    182      -M    14.2       *
                                                -----                  -----
                Basin Index (%)                  161                    151*

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


 -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.