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 THURSDAY: APRIL 10 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 30.2 16.6 182 35.4 23.5 151 COTTONWOOD CREEK 7600 31.8 23.7 134 33.6 26.5 127 GRANITE CREEK 6770 29.3 18.2 161 33.4 24.8 135 GRASSY LAKE 7265 48.1 37.3 129 53.2 39.2 136 GROS VENTRE SUMMIT 8775 23.5 15.9 148 21.8 16.8 130 LEWIS LAKE DIVIDE 7860 52.2 36.4 143 45.8 39.9 115 PHILLIPS BENCH 8200 43.9 30.4 144 46.3 31.5 147 SALT RIVER SUMMIT 7600 22.2 14.1 157 24.5 17.9 137 SNAKE RIVER STATION 6920 28.2 18.7 151 37.1 27.5 135 SPRING CREEK DIVIDE 9000 37.3 29.0 129 33.5 28.9 116 THUMB DIVIDE 7980 32.3 17.3 187 33.8 22.0 154 TOGWOTEE PASS 9580 35.4 26.4 134 34.6 29.9 116 TWO OCEAN PLATEAU 9360 46.4 26.7 174 -M 32.4 * WILLOW CREEK 8450 40.6 31.3 130 44.7 33.9 132 ----- ----- Basin wide percent of average 147 132 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 36.3 24.9 146 31.2 19.1 163 BLACK BEAR 7950 -M 39.6 * -M 42.9 * CANYON 7940 23.6 13.4 176 26.8 15.0 179 FISHER CREEK 9100 56.5 37.3 151 -M 38.6 * MADISON PLATEAU 7750 42.6 25.3 168 42.7 27.7 154 NORTHEAST ENTRANCE 7350 12.9 9.1 142 19.5 12.5 156 PARKER PEAK 9400 32.8 22.7 144 -M 16.5 * SYLVAN LAKE 8420 32.5 23.3 139 33.6 20.2 166 THUMB DIVIDE 7980 32.3 17.3 187 33.8 22.0 154 TWO OCEAN PLATEAU 9360 46.4 26.7 174 -M 32.4 * WHISKEY CREEK 6800 25.6 18.0 142 32.1 23.0 140 WHITE MILL 8700 38.7 25.6 151 -M 29.9 * WOLVERINE 7650 13.3 11.8 113 16.0 13.5 119 ----- ----- Basin wide percent of average 154 154 WIND RIVER BURROUGHS CREEK 8750 24.3 15.2 160 26.3 17.5 150 CHRISTINA LAKE 9980 20.8 16.2 128 24.0 17.8 135 COLD SPRINGS 9630 10.6 8.6 123 13.2 11.4 116 HOBBS PARK 10100 18.9 16.0 118 15.1 15.1 100 LITTLE WARM 9620 18.5 12.8 145 21.0 14.2 148 SOUTH PASS 9040 26.2 17.2 152 26.0 18.2 143 ST. LAWRENCE ALT 8620 9.6 7.3 132 12.2 10.9 112 TOGWOTEE PASS 9580 35.4 26.4 134 34.6 29.9 116 TOWNSEND CREEK 8700 11.2 10.2 110 13.5 13.4 101 ----- ----- Basin wide percent of average 135 125 BIGHORN BASIN BALD MTN. 9375 23.7 21.7 109 20.0 18.4 109 BEAR TRAP MEADOW 7900 7.1 7.0 101 9.5 8.9 107 BLACKWATER 9780 39.2 23.9 164 30.0 18.9 159 BONE SPRINGS DIV 9350 20.1 17.5 115 18.5 16.0 116 EVENING STAR 9200 42.4 28.5 149 41.0 23.7 173 GRAVE SPRINGS 8550 13.4 -M * 12.5 10.4 120 KIRWIN 9550 15.4 10.7 144 17.0 11.6 147 LOST CREEK 8080 18.1 14.7 123 17.2 12.8 134 MARQUETTE 8760 12.8 8.5 151 12.9 10.7 121 MIDDLE POWDER 7760 19.1 13.1 146 16.0 12.7 126 OWL CREEK 8975 8.3 4.7 177 7.0 6.8 103 POWDER RIVER PASS 9480 -M 11.4 * 14.4 12.5 115 SHELL CREEK 9580 19.1 15.8 121 16.1 13.9 116 SYLVAN LAKE 8420 32.5 23.3 139 33.6 20.2 166 SYLVAN ROAD 8120 21.1 11.4 185 27.6 16.9 163 TIMBER CREEK 7950 7.5 6.5 115 9.0 7.9 114 YOUNTS PEAK 8350 24.9 17.9 139 28.4 17.5 162 ----- ----- Basin wide percent of average 138 138 SHOSHONE RIVER BLACKWATER 9780 39.2 23.9 164 30.0 18.9 159 EVENING STAR 9200 42.4 28.5 149 41.0 23.7 173 KIRWIN 9550 15.4 10.7 144 17.0 11.6 147 MARQUETTE 8760 12.8 8.5 151 12.9 10.7 121 SYLVAN LAKE 8420 32.5 23.3 139 33.6 20.2 166 SYLVAN ROAD 8120 21.1 11.4 185 27.6 16.9 163 YOUNTS PEAK 8350 24.9 17.9 139 28.4 17.5 162 ----- ----- Basin wide percent of average 152 159 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.1 7.0 101 9.5 8.9 107 BONE SPRINGS DIV 9350 20.1 17.5 115 18.5 16.0 116 BURGESS JUNCTION 7880 15.8 12.5 126 15.1 12.4 122 CLOUD PEAK RESERVOIR 9860 19.5 16.1 121 16.7 14.4 116 DOME LAKE 8880 14.9 14.4 103 16.2 14.2 114 GRAVE SPRINGS 8550 13.4 -M * 12.5 10.4 120 HANSEN SAWMILL 8760 7.6 7.4 103 9.2 8.6 107 LOST CREEK 8080 18.1 14.7 123 17.2 12.8 134 MIDDLE POWDER 7760 19.1 13.1 146 16.0 12.7 126 POWDER RIVER PASS 9480 -M 11.4 * 14.4 12.5 115 SUCKER CREEK 8880 17.2 12.9 133 17.4 14.1 123 TIE CREEK 6870 7.8 -M * 14.0 11.8 119 ----- ----- Basin wide percent of average 121 119 BELLE FOURCHE BLIND PARK 6890 11.2 11.4 98 16.6 11.1 150 NORTH RAPID CREEK 6130 11.7 -M * 14.7 -M * WARREN PEAK 6520 20.9 11.4 183 -M 8.7 * ----- ----- Basin wide percent of average 141 150* UPPER N. PLATTE RIVER COLUMBINE 9400 30.8 24.6 125 33.6 25.6 131 DIVIDE PEAK 8800 28.9 21.6 134 26.4 24.2 109 ELK RIVER 8700 28.9 20.3 142 26.8 20.1 133 JOE WRIGHT 10120 28.0 23.5 119 30.9 26.6 116 NORTH FRENCH CREEK 10100 36.8 27.3 135 -M 24.9 * OLD BATTLE 10000 43.4 34.5 126 40.7 31.9 128 SOUTH BRUSH CREEK 8400 13.8 13.1 105 18.9 17.6 107 TOWER 10500 57.5 47.7 121 48.1 38.3 126 WEBBER SPRINGS 9200 32.9 28.5 115 38.1 26.8 142 WILLOW CREEK PASS 9540 21.7 13.0 167 17.7 13.4 132 ----- ----- Basin wide percent of average 127 125 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 37.3 28.1 133 28.3 20.7 137 CASPER MTN. 7900 25.2 18.1 139 22.6 15.4 147 CHRISTINA LAKE 9980 20.8 16.2 128 24.0 17.8 135 DEADMAN HILL 10220 18.1 17.4 104 20.2 18.0 112 LAPRELE CREEK 8320 15.8 10.2 155 15.8 12.7 124 RENO HILL 8400 26.0 15.1 172 22.6 20.2 112 ROACH 9700 24.2 17.9 135 24.0 22.5 107 SAND LAKE 10080 40.6 34.8 117 31.5 21.7 145 SOUTH PASS 9040 26.2 17.2 152 26.0 18.2 143 WINDY PEAK 7840 11.1 9.1 122 12.2 10.3 118 ----- ----- Basin wide percent of average 133 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.3 11.0 139 28.8 16.3 177 DIVIDE PEAK 8800 28.9 21.6 134 26.4 24.2 109 OLD BATTLE 10000 43.4 34.5 126 40.7 31.9 128 SANDSTONE RS 8150 19.0 15.2 125 22.8 19.9 115 WHISKEY PARK 8950 40.3 30.1 134 33.9 29.9 113 ----- ----- Basin wide percent of average 131 125 UPPER GREEN RIVER BIG SANDY OPENING 9100 19.6 15.2 129 17.5 17.2 102 BLIND BULL SUM 8650 43.9 30.6 143 33.4 25.3 132 EAST RIM DIVIDE 7930 17.3 14.6 118 17.6 16.0 110 ELKHART PARK G.S. 9400 18.3 14.6 125 19.1 16.9 113 GROS VENTRE SUMMIT 8775 23.5 15.9 148 21.8 16.8 130 KENDALL R.S. 7740 24.0 13.7 175 24.0 16.4 146 LOOMIS PARK 8240 -M 17.2 * 27.8 19.9 140 NEW FORK LAKE 8340 15.5 10.9 142 13.6 15.3 89 SNIDER BASIN 8250 23.8 15.3 156 19.8 16.0 124 SPRING CREEK DIVIDE 9000 37.3 29.0 129 33.5 28.9 116 TRIPLE PEAK 8500 36.6 26.5 138 38.3 32.7 117 ----- ----- Basin wide percent of average 139 120 LOWER GREEN RIVER HAMS FORK 7840 15.7 8.1 194 15.3 14.2 108 HEWINTA 9500 11.5 9.9 116 14.9 14.1 106 HICKERSON PARK 9150 11.7 6.7 175 11.2 10.3 109 HOLE-IN-ROCK 9150 9.3 6.3 148 11.6 10.3 113 INDIAN CREEK 9425 40.3 29.9 135 32.4 27.4 118 KELLEY R.S. 8180 24.8 17.5 142 26.3 19.8 133 STEEL CREEK PARK 10100 17.4 17.4 100 17.0 13.8 123 ----- ----- Basin wide percent of average 136 117 UPPER BEAR RIVER BUG LAKE 7950 34.2 20.5 167 30.3 20.5 148 HAYDEN FORK 9400 18.2 12.8 142 26.2 20.3 129 KELLEY R.S. 8180 24.8 17.5 142 26.3 19.8 133 LILY LAKE 9050 18.5 13.1 141 20.4 15.8 129 MONTE CRISTO 8960 42.3 29.5 143 34.0 27.1 125 SALT RIVER SUMMIT 7600 22.2 14.1 157 24.5 17.9 137 TRIAL LAKE 9960 35.7 25.6 139 35.3 25.3 140 ----- ----- Basin wide percent of average 147 134 ----------------------------------------------------------------------------- -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.