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 SATURDAY: MARCH 22 , 1997
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 29.5 17.2 172 33.8 21.9 154
COTTONWOOD CREEK 7600 30.4 22.8 133 31.6 24.6 128
GRANITE CREEK 6770 27.4 17.8 154 32.5 23.1 141
GRASSY LAKE 7265 46.0 34.4 134 51.4 36.3 142
GROS VENTRE SUMMIT 8775 20.5 15.0 137 20.3 15.6 130
LEWIS LAKE DIVIDE 7860 51.8 34.0 152 46.5 36.9 126
PHILLIPS BENCH 8200 40.7 28.0 145 44.1 29.1 152
SALT RIVER SUMMIT 7600 21.5 13.8 156 23.3 16.6 140
SNAKE RIVER STATION 6920 26.9 18.2 148 35.6 25.4 140
SPRING CREEK DIVIDE 9000 33.9 26.8 126 32.2 26.8 120
THUMB DIVIDE 7980 32.1 16.4 196 -M 20.5 *
TOGWOTEE PASS 9580 33.7 23.8 142 -M 27.6 *
TWO OCEAN PLATEAU 9360 43.7 25.6 171 -M 30.2 *
WILLOW CREEK 8450 40.6 29.3 139 39.4 31.5 125
----- -----
Basin wide percent of average 148 136
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 34.5 22.6 153 29.7 17.2 173
BLACK BEAR 7950 -M 36.6 * -M 38.8 *
CANYON 7940 23.9 12.4 193 25.8 13.7 188
FISHER CREEK 9100 54.7 34.3 159 -M 35.0 *
MADISON PLATEAU 7750 40.9 23.6 173 41.5 25.1 165
NORTHEAST ENTRANCE 7350 12.0 9.0 133 18.9 11.4 166
PARKER PEAK 9400 30.7 20.7 148 -M 14.9 *
SYLVAN LAKE 8420 31.3 21.2 148 31.8 18.3 174
THUMB DIVIDE 7980 32.1 16.4 196 -M 20.5 *
TWO OCEAN PLATEAU 9360 43.7 25.6 171 -M 30.2 *
WHISKEY CREEK 6800 24.7 16.6 149 31.0 20.8 149
WHITE MILL 8700 37.8 24.2 156 -M 27.1 *
WOLVERINE 7650 14.2 11.3 126 15.1 12.2 124
----- -----
Basin wide percent of average 160 163
WIND RIVER
BURROUGHS CREEK 8750 23.6 14.5 163 25.3 15.8 160
CHRISTINA LAKE 9980 18.8 14.6 129 21.5 15.7 137
COLD SPRINGS 9630 9.9 8.0 124 11.2 9.9 113
HOBBS PARK 10100 16.5 14.2 116 12.8 13.2 97
LITTLE WARM 9620 16.1 10.9 148 18.0 12.5 144
SOUTH PASS 9040 25.2 15.7 161 24.0 16.0 150
ST. LAWRENCE ALT 8620 8.3 7.2 115 10.1 9.5 106
TOGWOTEE PASS 9580 33.7 23.8 142 -M 27.6 *
TOWNSEND CREEK 8700 9.8 9.4 104 11.0 11.6 95
----- -----
Basin wide percent of average 137 129
BIGHORN BASIN
BALD MTN. 9375 20.9 19.5 107 17.4 16.3 107
BEAR TRAP MEADOW 7900 7.6 6.8 112 8.2 7.6 108
BLACKWATER 9780 37.0 21.1 175 28.2 17.2 164
BONE SPRINGS DIV 9350 17.5 15.6 112 15.5 14.0 111
EVENING STAR 9200 40.2 25.8 156 38.8 21.5 180
GRAVE SPRINGS 8550 10.8 -M * 10.1 8.9 113
KIRWIN 9550 14.1 9.4 150 15.3 10.1 151
LOST CREEK 8080 14.1 12.7 111 14.2 11.0 129
MARQUETTE 8760 10.3 7.6 136 10.8 8.7 124
MIDDLE POWDER 7760 14.8 11.4 130 13.2 11.0 120
OWL CREEK 8975 7.6 4.3 177 6.4 5.8 110
POWDER RIVER PASS 9480 12.9 10.3 125 12.9 10.8 119
SHELL CREEK 9580 16.8 14.3 117 13.9 12.3 113
SYLVAN LAKE 8420 31.3 21.2 148 31.8 18.3 174
SYLVAN ROAD 8120 20.0 12.4 161 26.1 15.4 169
TIMBER CREEK 7950 6.7 5.9 114 7.5 6.4 117
YOUNTS PEAK 8350 23.3 16.5 141 -M 15.8 *
----- -----
Basin wide percent of average 137 138
SHOSHONE RIVER
BLACKWATER 9780 37.0 21.1 175 28.2 17.2 164
EVENING STAR 9200 40.2 25.8 156 38.8 21.5 180
KIRWIN 9550 14.1 9.4 150 15.3 10.1 151
MARQUETTE 8760 10.3 7.6 136 10.8 8.7 124
SYLVAN LAKE 8420 31.3 21.2 148 31.8 18.3 174
SYLVAN ROAD 8120 20.0 12.4 161 26.1 15.4 169
YOUNTS PEAK 8350 23.3 16.5 141 -M 15.8 *
----- -----
Basin wide percent of average 155 166
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.6 6.8 112 8.2 7.6 108
BONE SPRINGS DIV 9350 17.5 15.6 112 15.5 14.0 111
BURGESS JUNCTION 7880 12.1 11.2 108 12.0 10.6 113
CLOUD PEAK RESERVOIR 9860 16.8 13.8 122 13.9 12.3 113
DOME LAKE 8880 12.1 13.0 93 13.2 12.3 107
GRAVE SPRINGS 8550 10.8 -M * 10.1 8.9 113
HANSEN SAWMILL 8760 7.3 6.7 109 7.9 7.3 108
LOST CREEK 8080 14.1 12.7 111 14.2 11.0 129
MIDDLE POWDER 7760 14.8 11.4 130 13.2 11.0 120
POWDER RIVER PASS 9480 12.9 10.3 125 12.9 10.8 119
SUCKER CREEK 8880 13.1 11.4 115 13.7 12.3 111
TIE CREEK 6870 6.9 -M * 10.8 10.1 107
----- -----
Basin wide percent of average 114 114
BELLE FOURCHE
BLIND PARK 6890 9.8 10.5 93 13.9 9.2 151
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 16.0 10.5 152 -M 7.4 *
----- -----
Basin wide percent of average 123 151*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.9 24.0 120 29.4 23.2 127
DIVIDE PEAK 8800 24.8 19.8 125 23.8 21.5 111
ELK RIVER 8700 26.9 19.1 141 24.2 18.0 134
JOE WRIGHT 10120 22.1 20.6 107 27.4 23.5 117
NORTH FRENCH CREEK 10100 34.0 24.0 142 30.0 22.0 136
OLD BATTLE 10000 39.3 30.1 131 50.5 28.4 178
SOUTH BRUSH CREEK 8400 13.8 12.1 114 16.7 15.2 110
TOWER 10500 52.3 42.9 122 49.1 34.2 144
WEBBER SPRINGS 9200 29.1 26.3 111 34.4 23.7 145
WILLOW CREEK PASS 9540 16.7 11.1 150 14.1 11.7 121
----- -----
Basin wide percent of average 125 135
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 33.8 24.2 140 25.6 18.1 141
CASPER MTN. 7900 19.3 15.0 129 18.2 13.0 140
CHRISTINA LAKE 9980 18.8 14.6 129 21.5 15.7 137
DEADMAN HILL 10220 15.3 15.7 97 17.3 15.5 112
LAPRELE CREEK 8320 13.5 9.9 136 13.6 10.9 125
RENO HILL 8400 20.4 13.2 155 17.4 17.7 98
ROACH 9700 22.6 16.3 139 20.8 19.9 105
SAND LAKE 10080 34.7 31.2 111 27.5 19.1 144
SOUTH PASS 9040 25.2 15.7 161 24.0 16.0 150
WINDY PEAK 7840 9.8 8.1 121 11.3 8.7 130
----- -----
Basin wide percent of average 130 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.4 11.0 140 22.8 14.4 158
DIVIDE PEAK 8800 24.8 19.8 125 23.8 21.5 111
OLD BATTLE 10000 39.3 30.1 131 50.5 28.4 178
SANDSTONE RS 8150 18.7 14.2 132 21.6 17.6 123
WHISKEY PARK 8950 36.3 27.4 132 32.1 26.4 122
----- -----
Basin wide percent of average 131 139
UPPER GREEN RIVER
BIG SANDY OPENING 9100 19.1 13.9 137 19.3 15.9 121
BLIND BULL SUM 8650 41.2 28.2 146 32.5 23.4 139
EAST RIM DIVIDE 7930 17.0 13.5 126 17.0 14.9 114
ELKHART PARK G.S. 9400 18.3 13.3 138 18.2 15.7 116
GROS VENTRE SUMMIT 8775 20.5 15.0 137 20.3 15.6 130
KENDALL R.S. 7740 23.9 14.5 165 23.7 15.3 155
LOOMIS PARK 8240 -M 17.0 * 26.8 18.5 145
NEW FORK LAKE 8340 14.7 10.9 135 13.2 14.2 93
SNIDER BASIN 8250 23.3 14.4 162 19.0 14.9 128
SPRING CREEK DIVIDE 9000 33.9 26.8 126 32.2 26.8 120
TRIPLE PEAK 8500 36.6 24.7 148 36.5 30.5 120
----- -----
Basin wide percent of average 142 126
LOWER GREEN RIVER
HAMS FORK 7840 16.4 12.1 136 14.6 13.1 111
HEWINTA 9500 12.0 10.6 113 13.7 12.2 112
HICKERSON PARK 9150 7.4 6.3 117 8.8 8.8 100
HOLE-IN-ROCK 9150 7.3 5.9 124 9.3 8.8 106
INDIAN CREEK 9425 39.8 27.3 146 31.1 25.3 123
KELLEY R.S. 8180 23.6 16.5 143 25.4 18.4 138
STEEL CREEK PARK 10100 15.4 15.2 101 15.1 12.0 126
----- -----
Basin wide percent of average 130 120
UPPER BEAR RIVER
BUG LAKE 7950 32.9 19.9 165 29.2 18.4 159
HAYDEN FORK 9400 18.9 15.9 119 24.7 17.8 139
KELLEY R.S. 8180 23.6 16.5 143 25.4 18.4 138
LILY LAKE 9050 17.3 12.5 138 18.8 13.8 136
MONTE CRISTO 8960 36.0 27.8 129 32.6 24.1 135
SALT RIVER SUMMIT 7600 21.5 13.8 156 23.3 16.6 140
TRIAL LAKE 9960 35.0 24.2 145 34.2 22.6 151
----- -----
Basin wide percent of average 142 143
-----------------------------------------------------------------------------
-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.