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 FRIDAY: MARCH 14 , 2014
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 22.7 14.0 162 23.3 18.5 126
BLACK BEAR 8170 37.0 31.9 116 34.3 33.5 102
BLIND BULL SUM 8650 34.2 19.8 173 22.3 17.1 130
COTTONWOOD CREEK 7670 28.7 18.7 153 31.0 21.1 147
EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.3 142
GRAND TARGHEE 9260 44.8 32.4 138 33.7 26.1 129
GRANITE CREEK 6770 -M 14.8 * -M 17.7 *
GRASSY LAKE 7265 35.4 28.2 126 33.4 31.7 105
GROS VENTRE SUMMIT 8750 14.1 11.0 128 14.0 11.0 127
GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.8 148
LEWIS LAKE DIVIDE 7850 34.2 27.0 127 -M 31.2 *
PHILLIPS BENCH 8200 31.8 21.6 147 -M 24.5 *
SALT RIVER SUMMIT 7760 17.4 11.5 151 18.0 14.4 125
SNAKE RIVER STATION 6920 20.1 15.2 132 22.7 19.9 114
SPRING CREEK DIVIDE 9000 32.9 19.9 165 30.1 20.7 145
THUMB DIVIDE 7980 15.8 13.5 117 14.6 16.0 91
TOGWOTEE PASS 9580 29.3 19.8 148 -M 21.0 *
TWO OCEAN PLATEAU 9240 35.8 23.4 153 -M 23.6 *
WILLOW CREEK 8380 36.7 24.5 150 36.5 29.0 126
YOUNTS PEAK 8350 -M 12.7 * -M 13.6 *
----- -----
Basin Index (%) 143 123
MADISON-GALLATIN
BLACK BEAR 8170 37.0 31.9 116 34.3 33.5 102
CANYON 7870 13.0 11.6 112 14.7 14.2 104
MADISON PLATEAU 7750 21.2 19.7 108 21.2 23.1 92
WEST YELLOWSTONE 6700 12.4 9.9 125 13.6 12.5 109
WHISKEY CREEK 6800 15.2 13.5 113 17.8 17.6 101
----- -----
Basin Index (%) 114 101
YELLOWSTONE
BEARTOOTH LAKE 9360 27.9 18.6 150 24.8 17.1 145
BURNT MTN 5880 8.7 4.4 198 15.9 10.4 153
CANYON 7870 13.0 11.6 112 14.7 14.2 104
COLE CREEK 7850 16.9 11.4 148 12.2 10.2 120
EVENING STAR 9200 34.8 21.4 163 -M 23.6 *
FISHER CREEK 9100 39.1 27.5 142 34.4 27.6 125
NORTHEAST ENTRANCE 7350 13.8 8.7 159 13.7 10.6 129
PARKER PEAK 9400 27.1 17.0 159 21.6 15.2 142
SYLVAN LAKE 8420 21.3 17.3 123 24.1 19.3 125
THUMB DIVIDE 7980 15.8 13.5 117 14.6 16.0 91
TWO OCEAN PLATEAU 9240 35.8 23.4 153 -M 23.6 *
WHITE MILL 8700 29.9 19.4 154 25.6 20.5 125
WOLVERINE 7650 14.6 8.9 164 14.8 10.6 140
----- -----
Basin Index (%) 147 126
WIND RIVER
BURROUGHS CREEK 8750 -M 11.8 * -M 13.7 *
CASTLE CREEK 8400 10.2 -M * 11.7 -M *
COLD SPRINGS 9630 9.9 6.1 162 12.0 8.2 146
DEER PARK 9700 -M 12.3 * 17.2 16.6 104
HOBBS PARK 10100 13.3 11.1 120 11.5 10.6 108
KIRWIN 9550 17.1 8.0 214 15.6 9.6 162
LITTLE WARM 9370 13.5 8.9 152 15.8 10.7 148
OWL CREEK 8975 6.3 4.4 143 6.3 4.7 134
SOUTH PASS 9040 15.0 12.8 117 13.9 14.7 95
ST. LAWRENCE ALT 8620 4.2 5.9 71 7.2 7.2 100
TOGWOTEE PASS 9580 29.3 19.8 148 -M 21.0 *
TOWNSEND CREEK 8700 6.6 7.6 87 7.6 9.5 80
----- -----
Basin Index (%) 136 117
BIGHORN BASIN
BALD MTN. 9380 21.1 16.1 131 16.3 14.2 115
BEAR TRAP MEADOW 8200 9.2 4.8 192 9.2 6.7 137
BONE SPRINGS DIV 9350 17.8 13.5 132 14.0 12.8 109
GRAVE SPRINGS 8550 10.0 7.7 130 10.2 8.5 120
KIRWIN 9550 17.1 8.0 214 15.6 9.6 162
MARQUETTE 8760 11.1 -M * 10.6 -M *
MIDDLE POWDER 7760 13.4 9.0 149 11.1 9.5 117
OWL CREEK 8975 6.3 4.4 143 6.3 4.7 134
POWDER RIVER PASS 9480 13.7 8.7 157 14.5 10.4 139
SHELL CREEK 9580 16.5 12.4 133 14.2 11.3 126
TIMBER CREEK 7950 5.8 4.1 141 7.2 5.8 124
----- -----
Basin Index (%) 148 127
SHOSHONE RIVER
BLACKWATER 9780 28.6 19.5 147 25.6 17.5 146
EVENING STAR 9200 34.8 21.4 163 -M 23.6 *
MARQUETTE 8760 11.1 -M * 10.6 -M *
SYLVAN ROAD 7120 14.6 10.1 145 18.8 14.7 128
YOUNTS PEAK 8350 -M 12.7 * -M 13.6 *
----- -----
Basin Index (%) 153 138*
POWDER RIVER
BEAR TRAP MEADOW 8200 9.2 4.8 192 9.2 6.7 137
CLOUD PEAK RESERVOIR 9860 16.8 12.1 139 14.7 10.6 139
GRAVE SPRINGS 8550 10.0 7.7 130 10.2 8.5 120
HANSEN SAWMILL 8360 8.3 5.3 157 10.5 6.7 157
MIDDLE POWDER 7760 13.4 9.0 149 11.1 9.5 117
POWDER RIVER PASS 9480 13.7 8.7 157 14.5 10.4 139
SOLDIER PARK 8720 10.7 -M * 9.5 -M *
----- -----
Basin Index (%) 150 134
TONGUE RIVER
BIG GOOSE 7990 9.4 7.3 129 11.5 8.6 134
BONE SPRINGS DIV 9350 17.8 13.5 132 14.0 12.8 109
BURGESS JUNCTION 7880 12.1 9.4 129 12.9 9.9 130
DOME LAKE 8880 12.4 9.6 129 11.5 10.8 106
LITTLE GOOSE 8870 10.9 -M * 13.5 -M *
SUCKER CREEK 8880 14.3 10.3 139 15.8 11.6 136
TIE CREEK 6870 7.0 4.7 149 12.1 9.2 132
----- -----
Basin Index (%) 133 124
BELLE FOURCHE
COLE CANYON 5910 6.6 5.3 125 12.4 7.6 163
----- -----
Basin Index (%) 125 163
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.5 7.0 121 15.2 10.2 149
NORTH RAPID CREEK 6130 8.6 6.4 134 13.7 8.2 167
----- -----
Basin Index (%) 128 157
UPPER N. PLATTE
ARAPAHO RIDGE 10960 24.4 17.9 136 24.2 18.9 128
BLACKHALL MTN 9820 33.1 -M * 28.1 -M *
COLUMBINE 9160 31.6 21.4 148 -M 22.1 *
DIVIDE PEAK 8880 17.2 17.2 100 20.2 18.3 110
JOE WRIGHT 10120 18.6 18.7 99 28.3 21.8 130
LAPRELE CREEK 8375 7.5 8.8 85 9.1 10.3 88
MED BOW 10500 10.5 -M * 34.0 -M *
NORTH FRENCH CREEK 10130 29.9 23.7 126 29.9 22.8 131
NEVER SUMMER 10280 21.9 17.3 127 16.8 -M *
OLD BATTLE 10000 29.8 26.0 115 33.5 30.3 111
RAWAH 9020 13.0 9.2 141 15.3 11.6 132
SAGE CREEK BASIN 7850 11.4 11.8 97 11.1 12.6 88
SAND LAKE 10050 28.8 23.2 124 27.9 20.7 135
SOUTH BRUSH CREEK 8440 10.8 11.2 96 12.8 12.8 100
TOWER 10500 46.7 38.7 121 -M 34.4 *
WEBBER SPRINGS 9250 23.4 20.4 115 25.5 23.0 111
WILLOW CREEK PASS 9540 13.2 10.4 127 13.4 11.2 120
ZIRKEL 9340 38.4 25.4 151 25.4 24.8 102
----- -----
Basin Index (%) 122 116
SWEETWATER
DEER PARK 9700 -M 12.3 * 17.2 16.6 104
LARSEN CREEK 9000 12.8 10.6 121 14.7 -M *
SOUTH PASS 9040 15.0 12.8 117 13.9 14.7 95
----- -----
Basin Index (%) 119 99
LOWER N. PLATTE
CASPER MTN. 7900 15.1 11.7 129 13.5 12.2 111
LAPRELE CREEK 8375 7.5 8.8 85 9.1 10.3 88
RENO HILL 8400 14.7 11.4 129 16.8 12.3 137
WINDY PEAK 7900 7.4 6.7 110 9.9 8.7 114
----- -----
Basin Index (%) 116 113
LARAMIE RIVER
BROOKLYN LAKE 10240 27.7 17.2 161 26.5 17.7 150
CINNABAR PARK 9574 21.3 17.8 120 20.5 20.8 99
CROW CREEK 8330 6.4 7.1 90 10.2 8.5 120
DEADMAN HILL 10220 21.9 13.3 165 20.2 14.3 141
RAWAH 9020 13.0 9.2 141 15.3 11.6 132
ROACH 9700 18.9 13.5 140 21.9 16.2 135
----- -----
Basin Index (%) 140 129
S. PLATTE
BLACK MOUNTAIN 8920 10.9 -M * 11.1 -M *
CROW CREEK 8330 6.4 7.1 90 10.2 8.5 120
DEADMAN HILL 10220 21.9 13.3 165 20.2 14.3 141
----- -----
Basin Index (%) 139 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.6 10.8 107 15.3 13.1 117
DIVIDE PEAK 8880 17.2 17.2 100 20.2 18.3 110
ELK RIVER 8700 20.0 17.1 117 20.0 17.3 116
LITTLE SNAKE RIVER 8915 27.9 20.5 136 31.7 26.1 121
OLD BATTLE 10000 29.8 26.0 115 33.5 30.3 111
SAGE CREEK BASIN 7850 11.4 11.8 97 11.1 12.6 88
SANDSTONE RS 8150 10.9 11.6 94 16.1 16.2 99
WHISKEY PARK 8950 36.1 23.7 152 35.1 24.2 145
----- -----
Basin Index (%) 119 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.6 11.0 133 13.9 11.4 122
BLIND BULL SUM 8650 34.2 19.8 173 22.3 17.1 130
EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.3 142
ELKHART PARK G.S. 9400 16.6 10.3 161 15.8 11.4 139
GROS VENTRE SUMMIT 8750 14.1 11.0 128 14.0 11.0 127
GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.8 148
KENDALL R.S. 7740 21.8 10.8 202 -M 12.6 *
LOOMIS PARK 8240 23.4 12.9 181 23.4 15.1 155
NEW FORK LAKE 8340 15.4 9.1 169 13.1 9.4 139
POCKET CREEK 9360 12.2 -M * 12.1 -M *
SNIDER BASIN 8060 18.8 10.7 176 18.3 12.4 148
SPRING CREEK DIVIDE 9000 32.9 19.9 165 30.1 20.7 145
TRIPLE PEAK 8500 33.0 18.9 175 34.3 21.9 157
----- -----
Basin Index (%) 167 142
LOWER GREEN RIVER
BLACKS FORK JCT 8870 7.8 -M * 11.8 -M *
BUCK PASTURE 9700 13.1 -M * 14.8 -M *
EF BLACKS FORK GS 9360 9.0 -M * 9.1 -M *
HAMS FORK 7840 15.0 10.0 150 13.0 9.7 134
HEWINTA 9519 9.8 8.9 110 12.3 11.8 104
HICKERSON PARK 9145 7.0 6.6 106 7.8 8.4 93
HOLE-IN-ROCK 9150 6.0 6.2 97 7.9 7.8 101
INDIAN CREEK 9425 29.9 20.6 145 24.7 19.3 128
KELLEY R.S. 8180 17.8 12.9 138 19.5 15.6 125
SPIRIT LK 10235 8.9 -M * 11.5 -M *
STEEL CREEK PARK 10200 16.6 12.9 129 14.5 13.6 107
----- -----
Basin Index (%) 131 116
UPPER BEAR RIVER
BEAR RIVER RS 8777 10.0 -M * 11.0 -M *
BUG LAKE 7950 21.1 16.4 129 18.5 16.8 110
BURTS MILLER RANCH 8000 7.0 -M * 6.4 -M *
CHALK CREEK #1 8993 20.3 20.4 100 20.2 21.3 95
HAYDEN FORK 9212 15.0 13.9 108 18.2 17.8 102
KELLEY R.S. 8180 17.8 12.9 138 19.5 15.6 125
LILY LAKE 9156 12.4 11.3 110 13.7 14.5 94
MONTE CRISTO 8960 24.7 23.3 106 22.7 22.3 102
SALT RIVER SUMMIT 7760 17.4 11.5 151 18.0 14.4 125
----- -----
Basin Index (%) 117 107
-----------------------------------------------------------------------------
-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.