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 WEDNESDAY: APRIL 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 30.4 15.7 194 36.0 24.0 150 COTTONWOOD CREEK 7600 31.6 23.1 137 34.0 27.0 126 GRANITE CREEK 6770 28.6 17.5 163 33.5 25.4 132 GRASSY LAKE 7265 48.9 37.6 130 56.2 40.0 141 GROS VENTRE SUMMIT 8775 23.3 15.9 147 21.9 17.2 127 LEWIS LAKE DIVIDE 7860 52.9 36.6 145 45.9 40.7 113 PHILLIPS BENCH 8200 44.3 30.8 144 47.0 32.1 146 SALT RIVER SUMMIT 7600 21.8 13.6 160 24.6 18.3 134 SNAKE RIVER STATION 6920 28.3 18.5 153 37.6 28.1 134 SPRING CREEK DIVIDE 9000 38.0 29.4 129 33.7 29.5 114 THUMB DIVIDE 7980 32.1 17.3 186 34.0 22.5 151 TOGWOTEE PASS 9580 35.8 27.1 132 35.0 30.5 115 TWO OCEAN PLATEAU 9360 47.1 26.7 176 -M 33.1 * WILLOW CREEK 8450 40.6 31.7 128 45.6 34.6 132 ----- ----- Basin wide percent of average 147 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 37.0 25.5 145 31.9 19.7 162 BLACK BEAR 7950 -M 40.2 * -M 43.9 * CANYON 7940 23.4 13.3 176 26.9 15.4 175 FISHER CREEK 9100 57.0 38.0 150 -M 39.7 * MADISON PLATEAU 7750 42.8 25.5 168 43.0 28.3 152 NORTHEAST ENTRANCE 7350 12.8 8.8 145 19.8 12.9 153 PARKER PEAK 9400 33.1 23.2 143 -M 17.0 * SYLVAN LAKE 8420 32.0 23.9 134 33.8 20.8 162 THUMB DIVIDE 7980 32.1 17.3 186 34.0 22.5 151 TWO OCEAN PLATEAU 9360 47.1 26.7 176 -M 33.1 * WHISKEY CREEK 6800 25.1 18.0 139 32.2 23.6 136 WHITE MILL 8700 39.5 25.8 153 -M 30.7 * WOLVERINE 7650 13.2 11.6 114 16.2 14.0 116 ----- ----- Basin wide percent of average 153 151 WIND RIVER BURROUGHS CREEK 8750 24.6 15.2 162 26.9 18.1 149 CHRISTINA LAKE 9980 20.7 16.8 123 24.0 18.5 130 COLD SPRINGS 9630 10.5 8.6 122 13.5 11.9 113 HOBBS PARK 10100 19.1 16.6 115 15.5 15.8 98 LITTLE WARM 9620 18.6 13.3 140 21.3 14.8 144 SOUTH PASS 9040 26.6 17.6 151 26.2 18.9 139 ST. LAWRENCE ALT 8620 9.9 7.0 141 12.8 11.4 112 TOGWOTEE PASS 9580 35.8 27.1 132 35.0 30.5 115 TOWNSEND CREEK 8700 11.1 10.3 108 13.9 14.0 99 ----- ----- Basin wide percent of average 134 123 BIGHORN BASIN BALD MTN. 9375 24.0 22.4 107 20.2 19.1 106 BEAR TRAP MEADOW 7900 7.8 6.7 116 10.6 9.4 113 BLACKWATER 9780 40.2 24.8 162 31.1 19.4 160 BONE SPRINGS DIV 9350 20.6 18.1 114 18.6 16.6 112 EVENING STAR 9200 42.6 29.3 145 41.5 24.3 171 GRAVE SPRINGS 8550 13.5 -M * 12.6 11.0 115 KIRWIN 9550 15.7 11.1 141 17.1 12.1 141 LOST CREEK 8080 18.7 15.2 123 17.6 13.4 131 MARQUETTE 8760 13.1 8.7 151 13.5 11.5 117 MIDDLE POWDER 7760 19.1 13.7 139 16.3 13.3 123 OWL CREEK 8975 9.2 4.6 200 7.3 7.2 101 POWDER RIVER PASS 9480 -M 11.5 * 15.0 13.1 115 SHELL CREEK 9580 19.7 16.2 122 16.6 14.5 114 SYLVAN LAKE 8420 32.0 23.9 134 33.8 20.8 162 SYLVAN ROAD 8120 20.0 10.6 189 27.7 17.4 159 TIMBER CREEK 7950 7.9 6.6 120 9.1 8.5 107 YOUNTS PEAK 8350 25.1 18.3 137 -M 18.0 * ----- ----- Basin wide percent of average 137 133 SHOSHONE RIVER BLACKWATER 9780 40.2 24.8 162 31.1 19.4 160 EVENING STAR 9200 42.6 29.3 145 41.5 24.3 171 KIRWIN 9550 15.7 11.1 141 17.1 12.1 141 MARQUETTE 8760 13.1 8.7 151 13.5 11.5 117 SYLVAN LAKE 8420 32.0 23.9 134 33.8 20.8 162 SYLVAN ROAD 8120 20.0 10.6 189 27.7 17.4 159 YOUNTS PEAK 8350 25.1 18.3 137 -M 18.0 * ----- ----- Basin wide percent of average 149 156 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.8 6.7 116 10.6 9.4 113 BONE SPRINGS DIV 9350 20.6 18.1 114 18.6 16.6 112 BURGESS JUNCTION 7880 16.0 12.9 124 15.7 13.0 121 CLOUD PEAK RESERVOIR 9860 19.9 16.9 118 17.1 15.2 113 DOME LAKE 8880 15.1 14.8 102 16.6 14.8 112 GRAVE SPRINGS 8550 13.5 -M * 12.6 11.0 115 HANSEN SAWMILL 8760 -M 7.6 * 9.7 9.1 107 LOST CREEK 8080 18.7 15.2 123 17.6 13.4 131 MIDDLE POWDER 7760 19.1 13.7 139 16.3 13.3 123 POWDER RIVER PASS 9480 -M 11.5 * 15.0 13.1 115 SUCKER CREEK 8880 17.5 13.3 132 18.1 14.8 122 TIE CREEK 6870 7.6 -M * 14.5 12.4 117 ----- ----- Basin wide percent of average 121 117 BELLE FOURCHE BLIND PARK 6890 11.1 11.5 97 17.0 11.9 143 NORTH RAPID CREEK 6130 12.5 -M * 15.1 -M * WARREN PEAK 6520 21.3 11.5 185 -M 9.2 * ----- ----- Basin wide percent of average 141 143* UPPER N. PLATTE RIVER COLUMBINE 9400 30.7 24.3 126 34.0 26.3 129 DIVIDE PEAK 8800 29.4 21.6 136 27.3 25.1 109 ELK RIVER 8700 30.2 20.1 150 27.6 20.7 133 JOE WRIGHT 10120 29.1 24.2 120 32.5 27.7 117 NORTH FRENCH CREEK 10100 37.4 28.3 132 31.3 25.8 121 OLD BATTLE 10000 44.1 36.0 123 41.1 33.0 125 SOUTH BRUSH CREEK 8400 13.3 12.9 103 19.2 18.5 104 TOWER 10500 58.2 49.1 119 48.4 39.7 122 WEBBER SPRINGS 9200 33.2 28.4 117 38.6 27.9 138 WILLOW CREEK PASS 9540 22.3 13.5 165 17.8 14.0 127 ----- ----- Basin wide percent of average 127 123 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 38.3 29.0 132 29.2 21.6 135 CASPER MTN. 7900 25.3 18.9 134 22.9 16.4 140 CHRISTINA LAKE 9980 20.7 16.8 123 24.0 18.5 130 DEADMAN HILL 10220 18.7 17.9 104 20.7 18.9 110 LAPRELE CREEK 8320 14.9 9.8 152 16.2 13.3 122 RENO HILL 8400 26.2 15.4 170 23.1 20.8 111 ROACH 9700 24.7 18.1 136 24.3 23.5 103 SAND LAKE 10080 41.7 35.8 116 31.8 22.6 141 SOUTH PASS 9040 26.6 17.6 151 26.2 18.9 139 WINDY PEAK 7840 10.9 9.2 118 13.2 10.9 121 ----- ----- Basin wide percent of average 132 125 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 17.2 10.5 164 29.9 16.9 177 DIVIDE PEAK 8800 29.4 21.6 136 27.3 25.1 109 OLD BATTLE 10000 44.1 36.0 123 41.1 33.0 125 SANDSTONE RS 8150 19.8 15.0 132 23.3 20.8 112 WHISKEY PARK 8950 41.7 30.6 136 34.0 31.1 109 ----- ----- Basin wide percent of average 134 123 UPPER GREEN RIVER BIG SANDY OPENING 9100 19.5 15.3 127 17.8 17.6 101 BLIND BULL SUM 8650 44.4 30.5 146 34.0 25.8 132 EAST RIM DIVIDE 7930 17.5 15.0 117 17.8 16.4 109 ELKHART PARK G.S. 9400 19.1 14.9 128 19.4 17.3 112 GROS VENTRE SUMMIT 8775 23.3 15.9 147 21.9 17.2 127 KENDALL R.S. 7740 23.7 12.9 184 24.1 16.8 143 LOOMIS PARK 8240 -M 16.8 * 28.0 20.4 137 NEW FORK LAKE 8340 15.7 10.6 148 13.8 15.6 88 SNIDER BASIN 8250 23.4 15.3 153 19.9 16.4 121 SPRING CREEK DIVIDE 9000 38.0 29.4 129 33.7 29.5 114 TRIPLE PEAK 8500 36.4 26.8 136 38.8 33.4 116 ----- ----- Basin wide percent of average 140 119 LOWER GREEN RIVER HAMS FORK 7840 15.9 5.7 279 15.4 14.5 106 HEWINTA 9500 13.9 8.8 158 15.2 14.7 103 HICKERSON PARK 9150 10.5 6.4 164 11.3 10.9 104 HOLE-IN-ROCK 9150 10.5 6.0 175 11.7 10.9 107 INDIAN CREEK 9425 41.5 30.3 137 32.7 27.9 117 KELLEY R.S. 8180 25.2 17.4 145 26.6 20.3 131 STEEL CREEK PARK 10100 17.5 18.0 97 17.1 14.5 118 ----- ----- Basin wide percent of average 146 114 UPPER BEAR RIVER BUG LAKE 7950 34.4 19.8 174 30.5 21.1 145 HAYDEN FORK 9400 18.5 10.5 176 26.2 21.1 124 KELLEY R.S. 8180 25.2 17.4 145 26.6 20.3 131 LILY LAKE 9050 20.3 12.6 161 20.5 16.4 125 MONTE CRISTO 8960 42.6 29.1 146 34.4 28.0 123 SALT RIVER SUMMIT 7600 21.8 13.6 160 24.6 18.3 134 TRIAL LAKE 9960 36.6 25.9 141 35.3 26.2 135 ----- ----- Basin wide percent of average 155 131 ----------------------------------------------------------------------------- -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.