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


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 WEDNESDAY: DECEMBER 18 , 2013
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    7.1     5.6    127     8.4     8.3    101
 BLACK BEAR               8170   13.8    13.7    101    14.0    14.6     96
 BLIND BULL SUM           8650    8.9     7.5    119     7.7     7.7    100
 COTTONWOOD CREEK         7670    6.9     6.7    103     8.3     9.3     89
 EAST RIM DIVIDE          7930    4.7     3.3    142     4.8     4.5    107
 GRAND TARGHEE            9260   17.1    13.9    123    13.0    12.4    105
 GRANITE CREEK            6770    5.3     4.5    118     6.9     7.6     91
 GRASSY LAKE              7265    9.7     9.7    100    11.7    13.7     85
 GROS VENTRE SUMMIT       8750    5.7     4.7    121     5.5     5.2    106
 GUNSIGHT PASS            9820    6.5     4.3    151     6.5     5.2    125
 LEWIS LAKE DIVIDE        7850    8.7     9.8     89    11.1    13.7     81
 PHILLIPS BENCH           8200    8.1     8.4     96     9.3    10.4     89
 SALT RIVER SUMMIT        7760    3.6     3.5    103     5.7     6.1     93
 SNAKE RIVER STATION      6920    5.4     5.0    108     7.6     9.2     83
 SPRING CREEK DIVIDE      9000    7.5     8.0     94     8.0     8.9     90
 THUMB DIVIDE             7980    4.8     4.7    102     5.7     7.3     78
 TOGWOTEE PASS            9580    9.6     9.2    104     9.1     9.6     95
 TWO OCEAN PLATEAU        9240   12.0    10.6    113    10.2    10.7     95
 WILLOW CREEK             8380    8.9     8.5    105    12.5    13.0     96
 YOUNTS PEAK              8350     -M     5.6       *     -M     6.4       *
                                                -----                  -----
                Basin Index (%)                  109                     94


MADISON-GALLATIN

 BLACK BEAR               8170   13.8    13.7    101    14.0    14.6     96
 CANYON                   7870    4.1     4.1    100     5.6     6.5     86
 MADISON PLATEAU          7750    7.4     8.1     91     8.9    10.1     88
 WEST YELLOWSTONE         6700    4.0     3.4    118     5.0     5.7     88
 WHISKEY CREEK            6800    5.1     4.9    104     7.0     8.1     86
                                                -----                  -----
                Basin Index (%)                  101                     90


YELLOWSTONE

 BEARTOOTH LAKE           9360    8.6     8.1    106     7.3     7.6     96
 BURNT MTN                5880    3.6     1.7    212     9.6     6.1    157
 CANYON                   7870    4.1     4.1    100     5.6     6.5     86
 COLE CREEK               7850    7.3     5.6    130     6.1     5.8    105
 EVENING STAR             9200   12.0     9.1    132    12.4    11.1    112
 FISHER CREEK             9100   12.9    12.1    107    11.6    12.4     94
 NORTHEAST ENTRANCE       7350    3.2     2.7    119     4.2     5.2     81
 PARKER PEAK              9400   10.0     8.0    125     9.5     7.3    130
 SYLVAN LAKE              8420    7.7     7.5    103     9.5     9.4    101
 THUMB DIVIDE             7980    4.8     4.7    102     5.7     7.3     78
 TWO OCEAN PLATEAU        9240   12.0    10.6    113    10.2    10.7     95
 WHITE MILL               8700    9.7     8.2    118     8.3     9.4     88
 WOLVERINE                7650    4.1     3.5    117     4.4     5.3     83
                                                -----                  -----
                Basin Index (%)                  116                    100


WIND RIVER

 BURROUGHS CREEK          8750     -M     5.0       *     -M     6.4       *
 CASTLE CREEK             8400    2.7      -M       *    4.5      -M       *
 COLD SPRINGS             9630    4.2     2.7    156     5.8     4.4    132
 DEER PARK                9700    4.6     5.1     90     6.3     7.4     85
 HOBBS PARK              10100    5.9     5.9    100     5.8     5.4    107
 KIRWIN                   9550    6.5     4.0    162     5.6     4.8    117
 LITTLE WARM              9370    5.1     3.8    134     6.7     5.3    126
 OWL CREEK                8975    3.2     2.2    145     3.3     2.6    127
 SOUTH PASS               9040    5.1     5.4     94     5.6     7.1     79
 ST. LAWRENCE ALT         8620    2.5     2.6     96     5.1     3.8    134
 TOGWOTEE PASS            9580    9.6     9.2    104     9.1     9.6     95
 TOWNSEND CREEK           8700    2.7     3.3     82     4.4     5.2     85
                                                -----                  -----
                Basin Index (%)                  112                    104


BIGHORN BASIN

 BALD MTN.                9380    9.2     6.9    133     7.9     6.7    118
 BEAR TRAP MEADOW         8200    3.8     2.1    181     5.3     3.8    139
 BONE SPRINGS DIV         9350    7.1     6.2    115     5.9     6.0     98
 GRAVE SPRINGS            8550    4.3     2.5    172     5.4     4.3    126
 KIRWIN                   9550    6.5     4.0    162     5.6     4.8    117
 MARQUETTE                8760    4.3      -M       *    5.7      -M       *
 MIDDLE POWDER            7760    5.8     3.8    153     6.3     5.4    117
 OWL CREEK                8975    3.2     2.2    145     3.3     2.6    127
 POWDER RIVER PASS        9480    5.2     3.8    137     5.6     5.0    112
 SHELL CREEK              9580    6.6     6.1    108     5.7     5.6    102
 TIMBER CREEK             7950    3.3     1.9    174     4.7     3.6    131
                                                -----                  -----
                Basin Index (%)                  139                    117


SHOSHONE RIVER

 BLACKWATER               9780   11.3     9.0    126     9.0     8.5    106
 EVENING STAR             9200   12.0     9.1    132    12.4    11.1    112
 MARQUETTE                8760    4.3      -M       *    5.7      -M       *
 SYLVAN ROAD              7120    4.8     4.1    117     8.1     7.7    105
 YOUNTS PEAK              8350     -M     5.6       *     -M     6.4       *
                                                -----                  -----
                Basin Index (%)                  127                    108


POWDER RIVER

 BEAR TRAP MEADOW         8200    3.8     2.1    181     5.3     3.8    139
 CLOUD PEAK RESERVOIR     9860    6.5     5.0    130     7.1     5.6    127
 GRAVE SPRINGS            8550    4.3     2.5    172     5.4     4.3    126
 HANSEN SAWMILL           8360    3.7     2.3    161     5.3     3.6    147
 MIDDLE POWDER            7760    5.8     3.8    153     6.3     5.4    117
 POWDER RIVER PASS        9480    5.2     3.8    137     5.6     5.0    112
 SOLDIER PARK             8720    3.2      -M       *    5.2      -M       *
                                                -----                  -----
                Basin Index (%)                  150                    126


TONGUE RIVER

 BIG GOOSE                7990    3.9     3.0    130     6.6     4.6    143
 BONE SPRINGS DIV         9350    7.1     6.2    115     5.9     6.0     98
 BURGESS JUNCTION         7880    4.8     3.9    123     6.8     5.1    133
 DOME LAKE                8880    2.9     4.5     64     5.1     5.9     86
 LITTLE GOOSE             8870     -M      -M       *     -M      -M       *
 SUCKER CREEK             8880    6.5     4.1    159     7.8     5.8    134
 TIE CREEK                6870    2.0     1.2    167     6.3     4.8    131
                                                -----                  -----
                Basin Index (%)                  119                    120


BELLE FOURCHE

 COLE CANYON              5910    2.6     1.0    260     9.0     4.1    220
                                                -----                  -----
                Basin Index (%)                  260                    220


CHEYENNE RIVER BASIN

 BLIND PARK               6890    3.6     2.2    164     9.4     5.2    181
 NORTH RAPID CREEK        6130    3.7     2.4    154     9.2     4.3    214
                                                -----                  -----
                Basin Index (%)                  159                    196


UPPER N. PLATTE

 ARAPAHO RIDGE           10960    8.5     7.6    112     8.6     9.2     93
 BLACKHALL MTN            9820   11.0      -M       *   12.2      -M       *
 COLUMBINE                9160    6.5     6.9     94     9.3     9.6     97
 DIVIDE PEAK              8880    6.4     6.5     98     9.9     8.6    115
 JOE WRIGHT              10120    6.4     8.0     80    10.3    10.3    100
 LAPRELE CREEK            8375    2.4     3.0     80     4.6     5.1     90
 MED BOW                 10500    9.4      -M       *   12.0      -M       *
 NORTH FRENCH CREEK      10130    9.7     9.6    101    11.4    10.0    114
 NEVER SUMMER            10280    8.0     6.9    116     7.5      -M       *
 OLD BATTLE              10000   10.4    10.5     99    12.2    13.5     90
 RAWAH                    9020    4.8     3.6    133     7.7     6.2    124
 SAGE CREEK BASIN         7850    3.7     4.2     88     5.6     5.9     95
 SAND LAKE               10050    9.7     9.4    103    10.1     9.5    106
 SOUTH BRUSH CREEK        8440    4.5     3.8    118     7.1     6.1    116
 TOWER                   10500   13.5    16.4     82    15.8    15.5    102
 WEBBER SPRINGS           9250    6.8     8.0     85     9.2    10.4     88
 WILLOW CREEK PASS        9540    6.0     4.6    130     6.8     5.6    121
 ZIRKEL                   9340    7.8     7.6    103    11.1    11.2     99
                                                -----                  -----
                Basin Index (%)                   99                    102


SWEETWATER

 DEER PARK                9700    4.6     5.1     90     6.3     7.4     85
 LARSEN CREEK             9000    1.6      -M       *    4.5      -M       *
 SOUTH PASS               9040    5.1     5.4     94     5.6     7.1     79
                                                -----                  -----
                Basin Index (%)                   92                     82


LOWER N. PLATTE

 CASPER MTN.              7900    7.2     4.8    150     7.7     6.5    118
 LAPRELE CREEK            8375    2.4     3.0     80     4.6     5.1     90
 RENO HILL                8400    7.2     5.0    144     9.3     6.2    150
 WINDY PEAK               7900    2.1     2.5     84     4.7     4.4    107
                                                -----                  -----
                Basin Index (%)                  124                    118


LARAMIE RIVER

 BROOKLYN LAKE           10240    7.0     6.7    104     7.7     7.7    100
 CINNABAR PARK            9574    6.8     7.4     92     8.8     9.4     94
 CROW CREEK               8330    2.2     3.7     59     4.8     4.5    107
 DEADMAN HILL            10220    7.8     5.8    134     8.3     6.6    126
 RAWAH                    9020    4.8     3.6    133     7.7     6.2    124
 ROACH                    9700    6.0     5.3    113     8.2     7.4    111
                                                -----                  -----
                Basin Index (%)                  106                    109


S. PLATTE

 BLACK MOUNTAIN           8920    4.3      -M       *    5.6      -M       *
 CROW CREEK               8330    2.2     3.7     59     4.8     4.5    107
 DEADMAN HILL            10220    7.8     5.8    134     8.3     6.6    126
                                                -----                  -----
                Basin Index (%)                  105                    118


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    4.2     2.8    150     7.8     5.9    132
 DIVIDE PEAK              8880    6.4     6.5     98     9.9     8.6    115
 ELK RIVER                8700    6.0     5.0    120     8.6     7.5    115
 LITTLE SNAKE RIVER       8915    7.2     6.2    116    12.4    12.1    102
 OLD BATTLE              10000   10.4    10.5     99    12.2    13.5     90
 SAGE CREEK BASIN         7850    3.7     4.2     88     5.6     5.9     95
 SANDSTONE RS             8150    3.8     3.7    103     7.7     7.2    107
 WHISKEY PARK             8950   10.1     7.7    131    12.9    10.0    129
                                                -----                  -----
                Basin Index (%)                  111                    109


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    4.1     4.7     87     4.1     5.2     79
 BLIND BULL SUM           8650    8.9     7.5    119     7.7     7.7    100
 EAST RIM DIVIDE          7930    4.7     3.3    142     4.8     4.5    107
 ELKHART PARK G.S.        9400    5.4     4.4    123     5.9     5.3    111
 GROS VENTRE SUMMIT       8750    5.7     4.7    121     5.5     5.2    106
 GUNSIGHT PASS            9820    6.5     4.3    151     6.5     5.2    125
 KENDALL R.S.             7740    5.1     3.7    138     6.2     5.3    117
 LOOMIS PARK              8240    5.4     4.9    110     6.7     6.6    102
 NEW FORK LAKE            8340    3.9     3.4    115     4.3     4.3    100
 POCKET CREEK             9360    4.2      -M       *    3.9      -M       *
 SNIDER BASIN             8060    4.1     3.9    105     5.3     5.3    100
 SPRING CREEK DIVIDE      9000    7.5     8.0     94     8.0     8.9     90
 TRIPLE PEAK              8500    6.8     6.8    100     8.6     9.1     95
                                                -----                  -----
                Basin Index (%)                  114                    101


LOWER GREEN RIVER

 BLACKS FORK JCT          8870    1.7      -M       *    4.7      -M       *
 BUCK PASTURE             9700    3.0      -M       *    5.8      -M       *
 EF BLACKS FORK GS        9360    1.5      -M       *    4.0      -M       *
 HAMS FORK                7840    1.7     3.4     50     3.9     4.3     91
 HEWINTA                  9519    1.8     2.9     62     5.0     5.7     88
 HICKERSON PARK           9145    3.0     2.0    150     4.5     4.4    102
 HOLE-IN-ROCK             9150    2.1     2.3     91     4.1     4.2     98
 INDIAN CREEK             9425    6.1     8.1     75     6.5     8.0     81
 KELLEY R.S.              8180    3.8     4.6     83     5.6     6.9     81
 SPIRIT LK               10235    3.6      -M       *    6.2      -M       *
 STEEL CREEK PARK        10200    4.7     5.4     87     5.9     6.5     91
                                                -----                  -----
                Basin Index (%)                   81                     89


UPPER BEAR RIVER

 BEAR RIVER RS            8777    2.2      -M       *    4.7      -M       *
 BUG LAKE                 7950    3.8     5.3     72     5.4     7.5     72
 BURTS MILLER RANCH       8000    2.2      -M       *    3.0      -M       *
 CHALK CREEK #1           8993    6.8     8.4     81     8.0     9.9     81
 HAYDEN FORK              9212    3.0     4.3     70     6.3     8.1     78
 KELLEY R.S.              8180    3.8     4.6     83     5.6     6.9     81
 LILY LAKE                9156    3.3     4.4     75     6.1     7.0     87
 MONTE CRISTO             8960    5.7     8.2     70     7.0     9.8     71
 SALT RIVER SUMMIT        7760    3.6     3.5    103     5.7     6.1     93
                                                -----                  -----
                Basin Index (%)                   78                     80

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


 -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.