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 MONDAY: MARCH 24 , 1997
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 29.6 17.3 171 33.9 22.1 153
COTTONWOOD CREEK 7600 30.1 23.1 130 31.8 24.8 128
GRANITE CREEK 6770 28.0 18.0 156 32.5 23.3 139
GRASSY LAKE 7265 44.7 34.7 129 51.3 36.7 140
GROS VENTRE SUMMIT 8775 21.6 15.1 143 20.3 15.8 128
LEWIS LAKE DIVIDE 7860 51.8 34.3 151 46.3 37.2 124
PHILLIPS BENCH 8200 41.2 28.3 146 44.6 29.4 152
SALT RIVER SUMMIT 7600 21.6 13.9 155 23.3 16.7 140
SNAKE RIVER STATION 6920 27.1 18.3 148 35.6 25.7 139
SPRING CREEK DIVIDE 9000 34.0 27.1 125 32.2 27.1 119
THUMB DIVIDE 7980 30.9 16.5 187 -M 20.7 *
TOGWOTEE PASS 9580 33.9 24.1 141 -M 27.9 *
TWO OCEAN PLATEAU 9360 43.8 25.8 170 -M 30.4 *
WILLOW CREEK 8450 40.6 29.5 138 39.8 31.8 125
----- -----
Basin wide percent of average 147 135
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 34.8 22.9 152 29.9 17.4 172
BLACK BEAR 7950 -M 36.9 * -M 39.3 *
CANYON 7940 23.5 12.5 188 25.8 13.8 187
FISHER CREEK 9100 55.1 34.7 159 -M 35.4 *
MADISON PLATEAU 7750 41.0 23.8 172 41.7 25.4 164
NORTHEAST ENTRANCE 7350 11.8 9.0 131 19.1 11.5 166
PARKER PEAK 9400 30.8 21.0 147 -M 15.0 *
SYLVAN LAKE 8420 31.5 21.4 147 32.0 18.5 173
THUMB DIVIDE 7980 30.9 16.5 187 -M 20.7 *
TWO OCEAN PLATEAU 9360 43.8 25.8 170 -M 30.4 *
WHISKEY CREEK 6800 24.8 16.8 148 31.1 21.1 147
WHITE MILL 8700 38.0 24.3 156 -M 27.4 *
WOLVERINE 7650 14.1 11.4 124 15.1 12.3 123
----- -----
Basin wide percent of average 158 162
WIND RIVER
BURROUGHS CREEK 8750 23.7 14.6 162 25.5 16.0 159
CHRISTINA LAKE 9980 18.8 14.7 128 21.5 15.9 135
COLD SPRINGS 9630 10.0 8.1 123 11.4 10.0 114
HOBBS PARK 10100 16.4 14.3 115 12.8 13.4 96
LITTLE WARM 9620 17.1 11.0 155 19.2 12.7 151
SOUTH PASS 9040 24.8 15.8 157 24.0 16.2 148
ST. LAWRENCE ALT 8620 8.1 7.3 111 10.1 9.6 105
TOGWOTEE PASS 9580 33.9 24.1 141 -M 27.9 *
TOWNSEND CREEK 8700 9.7 9.5 102 11.0 11.8 93
----- -----
Basin wide percent of average 136 128
BIGHORN BASIN
BALD MTN. 9375 21.0 19.7 107 17.4 16.5 105
BEAR TRAP MEADOW 7900 7.4 6.9 107 8.1 7.7 105
BLACKWATER 9780 37.1 21.4 173 28.1 17.4 161
BONE SPRINGS DIV 9350 17.6 15.7 112 15.5 14.2 109
EVENING STAR 9200 40.7 26.1 156 39.0 21.7 180
GRAVE SPRINGS 8550 11.0 -M * 10.3 9.0 114
KIRWIN 9550 14.2 9.5 149 15.3 10.2 150
LOST CREEK 8080 14.1 12.9 109 14.3 11.2 128
MARQUETTE 8760 10.5 7.7 136 11.0 8.9 124
MIDDLE POWDER 7760 15.1 11.6 130 13.2 11.1 119
OWL CREEK 8975 7.5 4.4 170 6.4 5.9 108
POWDER RIVER PASS 9480 12.8 10.4 123 13.0 11.0 118
SHELL CREEK 9580 16.9 14.4 117 14.0 12.5 112
SYLVAN LAKE 8420 31.5 21.4 147 32.0 18.5 173
SYLVAN ROAD 8120 19.9 12.4 160 26.1 15.5 168
TIMBER CREEK 7950 6.7 6.0 112 7.5 6.5 115
YOUNTS PEAK 8350 23.5 16.7 141 -M 16.0 *
----- -----
Basin wide percent of average 137 137
SHOSHONE RIVER
BLACKWATER 9780 37.1 21.4 173 28.1 17.4 161
EVENING STAR 9200 40.7 26.1 156 39.0 21.7 180
KIRWIN 9550 14.2 9.5 149 15.3 10.2 150
MARQUETTE 8760 10.5 7.7 136 11.0 8.9 124
SYLVAN LAKE 8420 31.5 21.4 147 32.0 18.5 173
SYLVAN ROAD 8120 19.9 12.4 160 26.1 15.5 168
YOUNTS PEAK 8350 23.5 16.7 141 -M 16.0 *
----- -----
Basin wide percent of average 154 164
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.4 6.9 107 8.1 7.7 105
BONE SPRINGS DIV 9350 17.6 15.7 112 15.5 14.2 109
BURGESS JUNCTION 7880 12.3 11.3 109 12.2 10.8 113
CLOUD PEAK RESERVOIR 9860 16.8 14.0 120 14.0 12.5 112
DOME LAKE 8880 12.2 13.2 92 13.3 12.5 106
GRAVE SPRINGS 8550 11.0 -M * 10.3 9.0 114
HANSEN SAWMILL 8760 7.3 6.8 107 7.9 7.4 107
LOST CREEK 8080 14.1 12.9 109 14.3 11.2 128
MIDDLE POWDER 7760 15.1 11.6 130 13.2 11.1 119
POWDER RIVER PASS 9480 12.8 10.4 123 13.0 11.0 118
SUCKER CREEK 8880 13.3 11.6 115 13.8 12.4 111
TIE CREEK 6870 6.8 -M * 10.9 10.3 106
----- -----
Basin wide percent of average 113 113
BELLE FOURCHE
BLIND PARK 6890 9.6 10.6 91 14.0 9.4 149
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 16.3 10.6 154 -M 7.5 *
----- -----
Basin wide percent of average 122 149*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.8 24.2 115 29.5 23.5 126
DIVIDE PEAK 8800 24.6 20.1 122 23.8 21.7 110
ELK RIVER 8700 26.3 19.2 137 24.2 18.2 133
JOE WRIGHT 10120 22.2 20.9 106 27.3 23.8 115
NORTH FRENCH CREEK 10100 33.9 24.3 140 30.0 22.3 135
OLD BATTLE 10000 39.3 30.6 128 50.5 28.7 176
SOUTH BRUSH CREEK 8400 13.3 12.4 107 16.7 15.4 108
TOWER 10500 52.1 43.4 120 49.1 34.6 142
WEBBER SPRINGS 9200 29.5 26.7 110 34.4 24.0 143
WILLOW CREEK PASS 9540 16.5 11.3 146 14.3 11.9 120
----- -----
Basin wide percent of average 122 134
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 34.4 24.6 140 26.0 18.4 141
CASPER MTN. 7900 19.1 15.3 125 18.2 13.2 138
CHRISTINA LAKE 9980 18.8 14.7 128 21.5 15.9 135
DEADMAN HILL 10220 15.4 15.8 97 17.3 15.7 110
LAPRELE CREEK 8320 13.6 10.0 136 13.6 11.1 123
RENO HILL 8400 20.3 13.4 151 17.5 18.0 97
ROACH 9700 22.8 16.6 137 20.8 20.1 103
SAND LAKE 10080 34.7 31.5 110 27.6 19.3 143
SOUTH PASS 9040 24.8 15.8 157 24.0 16.2 148
WINDY PEAK 7840 9.7 8.2 118 11.2 8.9 126
----- -----
Basin wide percent of average 129 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 14.8 11.1 133 25.0 14.6 171
DIVIDE PEAK 8800 24.6 20.1 122 23.8 21.7 110
OLD BATTLE 10000 39.3 30.6 128 50.5 28.7 176
SANDSTONE RS 8150 17.7 14.3 124 21.7 17.8 122
WHISKEY PARK 8950 36.0 27.7 130 32.3 26.7 121
----- -----
Basin wide percent of average 128 140
UPPER GREEN RIVER
BIG SANDY OPENING 9100 19.4 14.1 138 16.5 16.1 102
BLIND BULL SUM 8650 41.4 28.5 145 32.5 23.7 137
EAST RIM DIVIDE 7930 16.7 13.6 123 17.0 15.0 113
ELKHART PARK G.S. 9400 18.2 13.4 136 18.1 15.8 115
GROS VENTRE SUMMIT 8775 21.6 15.1 143 20.3 15.8 128
KENDALL R.S. 7740 24.2 14.6 166 23.8 15.4 155
LOOMIS PARK 8240 -M 17.1 * 26.8 18.7 143
NEW FORK LAKE 8340 14.6 11.0 133 13.2 14.3 92
SNIDER BASIN 8250 23.1 14.5 159 19.1 15.0 127
SPRING CREEK DIVIDE 9000 34.0 27.1 125 32.2 27.1 119
TRIPLE PEAK 8500 36.5 24.9 147 36.6 30.7 119
----- -----
Basin wide percent of average 141 123
LOWER GREEN RIVER
HAMS FORK 7840 15.9 12.1 131 14.7 13.2 111
HEWINTA 9500 10.4 10.8 96 13.7 12.4 110
HICKERSON PARK 9150 7.5 6.4 117 8.8 8.9 99
HOLE-IN-ROCK 9150 7.3 6.0 122 9.3 8.9 104
INDIAN CREEK 9425 39.2 27.6 142 31.1 25.5 122
KELLEY R.S. 8180 23.5 16.6 142 25.8 18.6 139
STEEL CREEK PARK 10100 15.3 15.5 99 15.1 12.2 124
----- -----
Basin wide percent of average 125 119
UPPER BEAR RIVER
BUG LAKE 7950 33.0 20.2 163 29.3 18.6 158
HAYDEN FORK 9400 17.3 16.0 108 24.7 18.1 136
KELLEY R.S. 8180 23.5 16.6 142 25.8 18.6 139
LILY LAKE 9050 16.5 12.6 131 18.7 14.0 134
MONTE CRISTO 8960 37.1 28.3 131 32.6 24.4 134
SALT RIVER SUMMIT 7600 21.6 13.9 155 23.3 16.7 140
TRIAL LAKE 9960 34.5 24.4 141 34.2 22.9 149
----- -----
Basin wide percent of average 139 141
-----------------------------------------------------------------------------
-M = Missing data
* = Data may not provide a valid measure of conditions.
If the Basin wide percent of average 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 Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average 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.
Reference period for average conditions is 1961-90.
Provisional data, subject to revision.
----------------------------------------------------------------------------
-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.