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 WEDNESDAY: APRIL 23 , 2014
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 18.3 11.3 162 27.3 22.0 124
BLACK BEAR 8170 44.1 36.8 120 42.4 40.3 105
BLIND BULL SUM 8650 36.9 24.3 152 23.8 20.5 116
COTTONWOOD CREEK 7670 25.7 17.8 144 35.5 26.2 135
EAST RIM DIVIDE 7930 12.4 9.3 133 16.0 12.3 130
GRAND TARGHEE 9260 53.1 42.7 124 -M 33.0 *
GRANITE CREEK 6770 20.1 10.0 201 24.7 20.5 120
GRASSY LAKE 7265 38.8 30.6 127 41.9 37.8 111
GROS VENTRE SUMMIT 8750 14.6 12.9 113 15.1 13.9 109
GUNSIGHT PASS 9820 19.7 13.6 145 19.5 15.2 128
LEWIS LAKE DIVIDE 7850 40.5 30.7 132 42.1 37.2 113
PHILLIPS BENCH 8200 33.8 25.3 134 35.4 29.5 120
SALT RIVER SUMMIT 7760 -M 8.9 * 19.4 17.6 110
SNAKE RIVER STATION 6920 14.9 10.9 137 27.2 23.8 114
SPRING CREEK DIVIDE 9000 37.7 23.6 160 33.7 25.2 134
THUMB DIVIDE 7980 19.8 14.3 138 20.6 20.0 103
TOGWOTEE PASS 9580 32.3 24.3 133 34.4 26.0 132
TWO OCEAN PLATEAU 9240 37.7 28.7 131 35.8 28.9 124
WILLOW CREEK 8380 39.9 26.4 151 43.1 35.8 120
YOUNTS PEAK 8350 -M 15.1 * -M 16.9 *
----- -----
Basin Index (%) 137 119
MADISON-GALLATIN
BLACK BEAR 8170 44.1 36.8 120 42.4 40.3 105
CANYON 7870 14.5 12.0 121 17.9 17.2 104
MADISON PLATEAU 7750 24.8 22.8 109 26.6 27.8 96
WEST YELLOWSTONE 6700 7.1 6.0 118 17.2 15.3 112
WHISKEY CREEK 6800 16.9 15.4 110 22.3 21.5 104
----- -----
Basin Index (%) 115 104
YELLOWSTONE
BEARTOOTH LAKE 9360 33.2 23.6 141 31.5 21.0 150
BURNT MTN 5880 7.3 .0 * 21.3 14.5 147
CANYON 7870 14.5 12.0 121 17.9 17.2 104
COLE CREEK 7850 24.6 16.4 150 18.3 14.9 123
EVENING STAR 9200 40.7 24.4 167 42.8 29.1 147
FISHER CREEK 9100 46.1 33.0 140 41.7 33.8 123
NORTHEAST ENTRANCE 7350 12.2 5.7 214 16.8 13.1 128
PARKER PEAK 9400 34.9 21.4 163 31.4 19.1 164
SYLVAN LAKE 8420 23.3 20.3 115 31.1 24.0 130
THUMB DIVIDE 7980 19.8 14.3 138 20.6 20.0 103
TWO OCEAN PLATEAU 9240 37.7 28.7 131 35.8 28.9 124
WHITE MILL 8700 33.4 23.7 141 30.6 25.2 121
WOLVERINE 7650 15.2 6.2 245 18.5 13.1 141
----- -----
Basin Index (%) 149 131
WIND RIVER
BURROUGHS CREEK 8750 -M 13.2 * -M 17.0 *
CASTLE CREEK 8400 7.6 -M * 13.1 -M *
COLD SPRINGS 9630 8.0 3.9 205 13.8 11.3 122
DEER PARK 9700 17.4 16.4 106 20.5 22.1 93
HOBBS PARK 10100 15.5 15.3 101 15.1 15.3 99
KIRWIN 9550 17.6 10.1 174 19.3 12.8 151
LITTLE WARM 9370 13.5 9.9 136 17.8 14.2 125
OWL CREEK 8975 4.2 3.2 131 8.5 7.1 120
SOUTH PASS 9040 15.3 15.3 100 16.0 19.0 84
ST. LAWRENCE ALT 8620 .0 5.1 0 10.0 10.3 97
TOGWOTEE PASS 9580 32.3 24.3 133 34.4 26.0 132
TOWNSEND CREEK 8700 6.5 9.0 72 10.5 13.7 77
----- -----
Basin Index (%) 116 109
BIGHORN BASIN
BALD MTN. 9380 27.6 20.1 137 22.3 18.5 121
BEAR TRAP MEADOW 8200 9.3 2.5 372 12.6 9.7 130
BONE SPRINGS DIV 9350 24.0 16.3 147 19.1 17.1 112
GRAVE SPRINGS 8550 12.7 9.4 135 14.0 11.9 118
KIRWIN 9550 17.6 10.1 174 19.3 12.8 151
MARQUETTE 8760 14.8 -M * 14.3 -M *
MIDDLE POWDER 7760 18.6 12.4 150 15.9 13.1 121
OWL CREEK 8975 4.2 3.2 131 8.5 7.1 120
POWDER RIVER PASS 9480 15.0 10.2 147 18.1 14.0 129
SHELL CREEK 9580 19.4 15.7 124 18.4 15.1 122
TIMBER CREEK 7950 4.6 4.2 110 10.4 8.8 118
----- -----
Basin Index (%) 147 124
SHOSHONE RIVER
BLACKWATER 9780 34.4 24.1 143 31.6 22.2 142
EVENING STAR 9200 40.7 24.4 167 42.8 29.1 147
MARQUETTE 8760 14.8 -M * 14.3 -M *
SYLVAN ROAD 7120 8.6 8.9 97 23.2 17.8 130
YOUNTS PEAK 8350 -M 15.1 * -M 16.9 *
----- -----
Basin Index (%) 146 141
POWDER RIVER
BEAR TRAP MEADOW 8200 9.3 2.5 372 12.6 9.7 130
CLOUD PEAK RESERVOIR 9860 22.3 16.1 139 20.8 15.3 136
GRAVE SPRINGS 8550 12.7 9.4 135 14.0 11.9 118
HANSEN SAWMILL 8360 9.1 4.5 202 14.1 9.9 142
MIDDLE POWDER 7760 18.6 12.4 150 15.9 13.1 121
POWDER RIVER PASS 9480 15.0 10.2 147 18.1 14.0 129
SOLDIER PARK 8720 12.7 -M * 13.5 -M *
----- -----
Basin Index (%) 158 129
TONGUE RIVER
BIG GOOSE 7990 13.1 9.2 142 17.1 13.1 131
BONE SPRINGS DIV 9350 24.0 16.3 147 19.1 17.1 112
BURGESS JUNCTION 7880 17.5 12.6 139 18.0 13.7 131
DOME LAKE 8880 16.9 11.8 143 17.3 15.2 114
LITTLE GOOSE 8870 15.3 -M * 19.3 -M *
SUCKER CREEK 8880 18.5 12.7 146 21.7 16.1 135
TIE CREEK 6870 7.6 3.9 195 16.9 13.2 128
----- -----
Basin Index (%) 147 125
BELLE FOURCHE
COLE CANYON 5910 5.5 1.4 393 14.8 10.7 138
----- -----
Basin Index (%) 393 138
CHEYENNE RIVER BASIN
BLIND PARK 6890 4.3 3.9 110 17.3 13.4 129
NORTH RAPID CREEK 6130 4.0 3.9 103 16.2 11.4 142
----- -----
Basin Index (%) 106 135
UPPER N. PLATTE
ARAPAHO RIDGE 10960 29.0 21.5 135 29.4 24.7 119
BLACKHALL MTN 9820 39.5 -M * -M -M *
COLUMBINE 9160 33.3 20.7 161 -M 27.3 *
DIVIDE PEAK 8880 17.2 18.3 94 24.8 23.2 107
JOE WRIGHT 10120 25.0 22.7 110 34.0 28.3 120
LAPRELE CREEK 8375 6.7 7.4 91 12.6 14.0 90
MED BOW 10500 -M -M * 42.4 -M *
NORTH FRENCH CREEK 10130 37.8 32.2 117 37.0 29.1 127
NEVER SUMMER 10280 27.1 20.9 130 21.8 -M *
OLD BATTLE 10000 36.4 33.5 109 39.1 37.5 104
RAWAH 9020 9.8 8.1 121 18.9 15.8 120
SAGE CREEK BASIN 7850 6.3 4.2 150 13.7 15.4 89
SAND LAKE 10050 35.4 30.7 115 34.8 27.3 127
SOUTH BRUSH CREEK 8440 7.8 9.8 80 16.4 16.8 98
TOWER 10500 54.5 48.8 112 -M 42.8 *
WEBBER SPRINGS 9250 23.5 21.8 108 30.3 28.8 105
WILLOW CREEK PASS 9540 16.4 13.5 121 16.6 14.7 113
ZIRKEL 9340 39.5 22.5 176 -M 30.0 *
----- -----
Basin Index (%) 121 112
SWEETWATER
DEER PARK 9700 17.4 16.4 106 20.5 22.1 93
LARSEN CREEK 9000 9.5 10.0 95 16.4 -M *
SOUTH PASS 9040 15.3 15.3 100 16.0 19.0 84
----- -----
Basin Index (%) 101 89
LOWER N. PLATTE
CASPER MTN. 7900 17.5 14.2 123 17.3 16.9 102
LAPRELE CREEK 8375 6.7 7.4 91 12.6 14.0 90
RENO HILL 8400 18.3 14.0 131 22.6 17.5 129
WINDY PEAK 7900 7.3 6.3 116 13.5 12.0 112
----- -----
Basin Index (%) 119 109
LARAMIE RIVER
BROOKLYN LAKE 10240 31.3 22.5 139 32.0 23.3 137
CINNABAR PARK 9574 26.0 19.9 131 31.2 25.8 121
CROW CREEK 8330 3.5 .2 1750* 13.0 12.2 107
DEADMAN HILL 10220 26.5 17.7 150 25.2 19.4 130
RAWAH 9020 9.8 8.1 121 18.9 15.8 120
ROACH 9700 20.8 16.7 125 26.2 21.0 125
----- -----
Basin Index (%) 139 125
S. PLATTE
BLACK MOUNTAIN 8920 11.1 -M * -M -M *
CROW CREEK 8330 3.5 .2 1750* 13.0 12.2 107
DEADMAN HILL 10220 26.5 17.7 150 25.2 19.4 130
----- -----
Basin Index (%) 168* 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.5 2.9 121 18.8 16.3 115
DIVIDE PEAK 8880 17.2 18.3 94 24.8 23.2 107
ELK RIVER 8700 17.0 14.8 115 24.0 21.7 111
LITTLE SNAKE RIVER 8915 27.3 23.6 116 36.5 31.3 117
OLD BATTLE 10000 36.4 33.5 109 39.1 37.5 104
SAGE CREEK BASIN 7850 6.3 4.2 150 13.7 15.4 89
SANDSTONE RS 8150 7.0 9.6 73 19.2 19.8 97
WHISKEY PARK 8950 39.1 25.6 153 41.9 30.1 139
----- -----
Basin Index (%) 116 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 15.4 12.3 125 15.3 14.4 106
BLIND BULL SUM 8650 36.9 24.3 152 23.8 20.5 116
EAST RIM DIVIDE 7930 12.4 9.3 133 16.0 12.3 130
ELKHART PARK G.S. 9400 18.0 11.8 153 17.4 14.3 122
GROS VENTRE SUMMIT 8750 14.6 12.9 113 15.1 13.9 109
GUNSIGHT PASS 9820 19.7 13.6 145 19.5 15.2 128
KENDALL R.S. 7740 18.4 7.3 252 23.3 14.9 156
LOOMIS PARK 8240 22.8 12.3 185 25.4 18.2 140
NEW FORK LAKE 8340 12.6 8.1 156 13.7 11.5 119
POCKET CREEK 9360 12.1 -M * 12.9 -M *
SNIDER BASIN 8060 15.5 10.4 149 19.9 15.0 133
SPRING CREEK DIVIDE 9000 37.7 23.6 160 33.7 25.2 134
TRIPLE PEAK 8500 33.6 19.2 175 37.9 26.7 142
----- -----
Basin Index (%) 156 129
LOWER GREEN RIVER
BLACKS FORK JCT 8870 4.1 -M * 14.4 -M *
BUCK PASTURE 9700 11.4 -M * 18.1 -M *
EF BLACKS FORK GS 9360 6.1 -M * 10.8 -M *
HAMS FORK 7840 10.1 5.7 177 14.6 12.3 119
HEWINTA 9519 5.9 7.4 80 15.3 15.3 100
HICKERSON PARK 9145 .9 5.1 18 9.3 11.3 82
HOLE-IN-ROCK 9150 1.6 5.5 29 10.5 10.8 97
INDIAN CREEK 9425 30.8 23.5 131 27.5 24.0 115
KELLEY R.S. 8180 15.9 12.0 132 21.1 19.3 109
SPIRIT LK 10235 8.1 -M * 14.9 -M *
STEEL CREEK PARK 10200 20.7 16.4 126 17.5 18.1 97
----- -----
Basin Index (%) 114 104
UPPER BEAR RIVER
BEAR RIVER RS 8777 1.3 -M * 13.5 -M *
BUG LAKE 7950 19.7 16.4 120 21.2 20.7 102
BURTS MILLER RANCH 8000 .3 -M * 7.4 -M *
CHALK CREEK #1 8993 20.3 24.5 83 24.6 27.2 90
HAYDEN FORK 9212 9.0 11.0 82 22.8 22.7 100
KELLEY R.S. 8180 15.9 12.0 132 21.1 19.3 109
LILY LAKE 9156 10.1 10.1 100 16.3 18.6 88
MONTE CRISTO 8960 22.5 27.3 82 26.5 27.8 95
SALT RIVER SUMMIT 7760 -M 8.9 * 19.4 17.6 110
----- -----
Basin Index (%) 96 99
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.