Supercell over Laramie
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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 SUNDAY: MARCH 16 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 29.4 16.8 175 32.7 21.4 153 COTTONWOOD CREEK 7600 29.3 21.8 134 30.5 23.9 128 GRANITE CREEK 6770 29.0 17.2 169 23.2 22.5 103 GRASSY LAKE 7265 44.4 33.2 134 39.0 35.2 111 GROS VENTRE SUMMIT 8775 21.1 14.5 146 19.7 15.2 130 LEWIS LAKE DIVIDE 7860 51.1 33.0 155 -M 35.8 * PHILLIPS BENCH 8200 39.9 27.1 147 43.3 28.3 153 SALT RIVER SUMMIT 7600 21.4 13.4 160 22.9 16.2 141 SNAKE RIVER STATION 6920 27.8 17.8 156 34.6 24.7 140 SPRING CREEK DIVIDE 9000 33.4 25.9 129 -M 26.0 * THUMB DIVIDE 7980 31.1 15.9 196 -M 20.0 * TOGWOTEE PASS 9580 33.0 23.0 143 -M 26.8 * TWO OCEAN PLATEAU 9360 42.0 24.8 169 -M 29.5 * WILLOW CREEK 8450 39.6 28.5 139 38.5 30.7 125 ----- ----- Basin wide percent of average 151 130 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 34.1 21.9 156 -M 16.6 * BLACK BEAR 7950 -M 35.4 * -M 37.4 * CANYON 7940 23.1 12.0 193 25.0 13.2 189 FISHER CREEK 9100 53.1 33.3 159 -M 33.8 * MADISON PLATEAU 7750 40.2 22.8 176 40.6 24.2 168 NORTHEAST ENTRANCE 7350 12.3 8.8 140 18.2 11.0 165 PARKER PEAK 9400 30.3 20.1 151 -M 14.4 * SYLVAN LAKE 8420 30.2 20.5 147 -M 17.8 * THUMB DIVIDE 7980 31.1 15.9 196 -M 20.0 * TWO OCEAN PLATEAU 9360 42.0 24.8 169 -M 29.5 * WHISKEY CREEK 6800 24.6 16.1 153 30.4 20.0 152 WHITE MILL 8700 36.5 23.6 155 -M 26.2 * WOLVERINE 7650 15.3 11.0 139 14.8 11.9 124 ----- ----- Basin wide percent of average 162 161* WIND RIVER BURROUGHS CREEK 8750 23.1 14.2 163 -M 15.3 * CHRISTINA LAKE 9980 18.7 14.1 133 21.1 15.0 141 COLD SPRINGS 9630 10.2 7.7 132 11.2 9.5 118 HOBBS PARK 10100 16.4 13.6 121 12.8 12.7 101 LITTLE WARM 9620 16.0 10.5 152 17.8 12.0 148 SOUTH PASS 9040 25.1 15.3 164 23.5 15.4 153 ST. LAWRENCE ALT 8620 8.6 7.0 123 10.0 9.1 110 TOGWOTEE PASS 9580 33.0 23.0 143 -M 26.8 * TOWNSEND CREEK 8700 9.8 9.1 108 11.1 11.1 100 ----- ----- Basin wide percent of average 141 127 BIGHORN BASIN BALD MTN. 9375 20.7 18.9 110 17.1 15.7 109 BEAR TRAP MEADOW 7900 7.5 6.5 115 8.8 7.2 122 BLACKWATER 9780 36.1 20.3 178 27.0 16.6 163 BONE SPRINGS DIV 9350 17.3 15.0 115 15.3 13.3 115 EVENING STAR 9200 39.7 24.9 159 -M 20.8 * GRAVE SPRINGS 8550 10.6 -M * 10.0 8.5 118 KIRWIN 9550 13.8 9.1 152 15.0 9.7 155 LOST CREEK 8080 14.1 12.1 117 14.1 10.5 134 MARQUETTE 8760 10.3 7.3 141 10.6 8.3 128 MIDDLE POWDER 7760 14.7 11.0 134 13.0 10.5 124 OWL CREEK 8975 7.8 4.1 190 6.5 5.5 118 POWDER RIVER PASS 9480 12.9 10.0 129 12.6 10.4 121 SHELL CREEK 9580 16.6 13.9 119 13.8 11.8 117 SYLVAN LAKE 8420 30.2 20.5 147 -M 17.8 * SYLVAN ROAD 8120 20.1 12.3 163 25.6 14.9 172 TIMBER CREEK 7950 7.0 5.6 125 7.5 6.0 125 YOUNTS PEAK 8350 22.6 16.1 140 -M 15.3 * ----- ----- Basin wide percent of average 140 132 SHOSHONE RIVER BLACKWATER 9780 36.1 20.3 178 27.0 16.6 163 EVENING STAR 9200 39.7 24.9 159 -M 20.8 * KIRWIN 9550 13.8 9.1 152 15.0 9.7 155 MARQUETTE 8760 10.3 7.3 141 10.6 8.3 128 SYLVAN LAKE 8420 30.2 20.5 147 -M 17.8 * SYLVAN ROAD 8120 20.1 12.3 163 25.6 14.9 172 YOUNTS PEAK 8350 22.6 16.1 140 -M 15.3 * ----- ----- Basin wide percent of average 156 158 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.5 6.5 115 8.8 7.2 122 BONE SPRINGS DIV 9350 17.3 15.0 115 15.3 13.3 115 BURGESS JUNCTION 7880 11.8 10.8 109 12.0 10.0 120 CLOUD PEAK RESERVOIR 9860 16.5 13.1 126 13.7 11.8 116 DOME LAKE 8880 11.9 12.6 94 13.1 11.8 111 GRAVE SPRINGS 8550 10.6 -M * 10.0 8.5 118 HANSEN SAWMILL 8760 7.3 6.5 112 7.8 6.9 113 LOST CREEK 8080 14.1 12.1 117 14.1 10.5 134 MIDDLE POWDER 7760 14.7 11.0 134 13.0 10.5 124 POWDER RIVER PASS 9480 12.9 10.0 129 12.6 10.4 121 SUCKER CREEK 8880 13.3 11.0 121 13.3 11.8 113 TIE CREEK 6870 7.9 -M * 10.6 9.6 110 ----- ----- Basin wide percent of average 117 118 BELLE FOURCHE BLIND PARK 6890 9.7 10.2 95 13.8 8.8 157 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.8 10.2 165 -M 7.1 * ----- ----- Basin wide percent of average 130 157* UPPER N. PLATTE RIVER COLUMBINE 9400 29.5 23.5 126 29.3 22.4 131 DIVIDE PEAK 8800 24.4 18.9 129 23.5 20.7 114 ELK RIVER 8700 27.0 18.5 146 24.1 17.3 139 JOE WRIGHT 10120 22.1 19.7 112 27.4 22.5 122 NORTH FRENCH CREEK 10100 33.7 23.1 146 30.0 21.1 142 OLD BATTLE 10000 33.9 28.9 117 33.2 27.3 122 SOUTH BRUSH CREEK 8400 14.3 11.3 127 16.5 14.5 114 TOWER 10500 52.1 41.4 126 36.7 33.0 111 WEBBER SPRINGS 9200 29.9 25.1 119 33.7 22.9 147 WILLOW CREEK PASS 9540 16.8 10.6 158 14.1 11.2 126 ----- ----- Basin wide percent of average 128 126 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 32.6 22.8 143 24.6 17.4 141 CASPER MTN. 7900 19.2 14.1 136 17.9 12.3 146 CHRISTINA LAKE 9980 18.7 14.1 133 21.1 15.0 141 DEADMAN HILL 10220 15.2 15.1 101 17.1 14.8 116 LAPRELE CREEK 8320 14.1 9.5 148 13.5 10.4 130 RENO HILL 8400 20.1 12.4 162 17.3 16.8 103 ROACH 9700 21.2 15.7 135 20.8 19.1 109 SAND LAKE 10080 34.6 30.0 115 27.3 18.3 149 SOUTH PASS 9040 25.1 15.3 164 23.5 15.4 153 WINDY PEAK 7840 9.6 7.7 125 11.2 8.3 135 ----- ----- Basin wide percent of average 134 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 17.2 10.8 159 18.1 13.9 130 DIVIDE PEAK 8800 24.4 18.9 129 23.5 20.7 114 OLD BATTLE 10000 33.9 28.9 117 33.2 27.3 122 SANDSTONE RS 8150 20.0 13.7 146 21.5 16.9 127 WHISKEY PARK 8950 36.9 26.5 139 31.3 25.3 124 ----- ----- Basin wide percent of average 134 123 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.4 13.5 136 14.3 15.5 92 BLIND BULL SUM 8650 40.2 27.3 147 31.7 22.7 140 EAST RIM DIVIDE 7930 16.6 13.2 126 16.7 14.5 115 ELKHART PARK G.S. 9400 17.7 12.9 137 17.4 15.3 114 GROS VENTRE SUMMIT 8775 21.1 14.5 146 19.7 15.2 130 KENDALL R.S. 7740 24.2 14.4 168 18.5 14.9 124 LOOMIS PARK 8240 -M 16.6 * 20.6 18.0 114 NEW FORK LAKE 8340 14.4 10.7 135 12.9 13.8 93 SNIDER BASIN 8250 22.7 14.1 161 18.9 14.5 130 SPRING CREEK DIVIDE 9000 33.4 25.9 129 -M 26.0 * TRIPLE PEAK 8500 34.5 23.9 144 35.2 29.7 119 ----- ----- Basin wide percent of average 143 118 LOWER GREEN RIVER HAMS FORK 7840 17.1 11.9 144 14.6 12.8 114 HEWINTA 9500 13.2 10.1 131 13.6 11.6 117 HICKERSON PARK 9150 7.6 5.9 129 8.8 8.3 106 HOLE-IN-ROCK 9150 8.2 5.6 146 9.3 8.3 112 INDIAN CREEK 9425 38.0 26.3 144 30.6 24.5 125 KELLEY R.S. 8180 23.1 16.0 144 24.8 18.0 138 STEEL CREEK PARK 10100 15.4 14.4 107 15.0 11.5 130 ----- ----- Basin wide percent of average 136 123 UPPER BEAR RIVER BUG LAKE 7950 32.0 19.0 168 28.7 17.7 162 HAYDEN FORK 9400 19.6 15.5 126 24.6 17.1 144 KELLEY R.S. 8180 23.1 16.0 144 24.8 18.0 138 LILY LAKE 9050 17.5 11.9 147 18.6 13.2 141 MONTE CRISTO 8960 39.8 26.6 150 31.9 23.2 138 SALT RIVER SUMMIT 7600 21.4 13.4 160 22.9 16.2 141 TRIAL LAKE 9960 35.6 23.8 150 34.1 21.8 156 ----- ----- Basin wide percent of average 150 146 ----------------------------------------------------------------------------- -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.