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 FRIDAY: JUNE 20 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 100* 44.4 29.0 153 COTTONWOOD CREEK 7600 .0 .0 100* 46.0 32.2 143 GRANITE CREEK 6770 .0 .0 100* 39.6 31.3 127 GRASSY LAKE 7265 .1 .0 * 68.5 48.0 143 GROS VENTRE SUMMIT 8775 .0 .0 100* 28.0 21.1 133 LEWIS LAKE DIVIDE 7860 .4 .0 * 69.3 48.8 142 PHILLIPS BENCH 8200 .3 .0 * 57.4 38.4 149 SALT RIVER SUMMIT 7600 .0 .0 100* 31.7 22.4 142 SNAKE RIVER STATION 6920 .0 .0 100* 46.2 33.7 137 SPRING CREEK DIVIDE 9000 -M .0 * 41.6 34.9 119 THUMB DIVIDE 7980 .0 .0 100* 42.3 27.1 156 TOGWOTEE PASS 9580 7.9 9.2 86 44.3 36.6 121 TWO OCEAN PLATEAU 9360 29.1 10.8 269 55.0 39.9 138 WILLOW CREEK 8450 .2 .0 * 61.3 41.5 148 ----- ----- Basin wide percent of average 185* 139 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.2 7.1 172 39.1 26.6 147 BLACK BEAR 7950 -M 9.9 * 81.7 53.0 154 CANYON 7940 .2 .1 200* 32.7 20.5 160 FISHER CREEK 9100 29.6 16.6 178 63.2 49.5 128 MADISON PLATEAU 7750 .0 .3 0* 49.6 35.2 141 NORTHEAST ENTRANCE 7350 .1 .0 * 27.9 18.1 154 PARKER PEAK 9400 1.2 8.8 14 32.8 23.5 140 SYLVAN LAKE 8420 .0 4.1 0 43.8 28.3 155 THUMB DIVIDE 7980 .0 .0 100* 42.3 27.1 156 TWO OCEAN PLATEAU 9360 29.1 10.8 269 55.0 39.9 138 WHISKEY CREEK 6800 .3 .0 * 38.8 29.5 132 WHITE MILL 8700 12.0 8.1 148 42.7 38.6 111 WOLVERINE 7650 .3 .0 * 23.3 19.6 119 ----- ----- Basin wide percent of average 151* 140 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 33.4 23.6 142 CHRISTINA LAKE 9980 .3 2.5 12 31.3 24.9 126 COLD SPRINGS 9630 .2 .0 * 22.0 17.4 126 HOBBS PARK 10100 .0 2.4 0 25.0 22.3 112 LITTLE WARM 9620 .3 .0 * 29.6 20.5 144 SOUTH PASS 9040 .2 2.7 7 32.2 25.5 126 ST. LAWRENCE ALT 8620 .0 .0 100* 20.1 16.0 126 TOGWOTEE PASS 9580 7.9 9.2 86 44.3 36.6 121 TOWNSEND CREEK 8700 .0 .0 100* 21.9 20.0 110 ----- ----- Basin wide percent of average 50* 126 BIGHORN BASIN BALD MTN. 9375 .6 6.7 9 28.9 26.8 108 BEAR TRAP MEADOW 7900 .2 .0 * 17.3 15.5 112 BLACKWATER 9780 14.8 6.1 243 39.6 26.5 149 BONE SPRINGS DIV 9350 .3 1.7 18* 26.5 24.1 110 EVENING STAR 9200 10.7 12.2 88 51.9 32.6 159 GRAVE SPRINGS 8550 .1 -M * 18.2 18.1 101 KIRWIN 9550 .2 .6 33* 26.5 17.7 150 LOST CREEK 8080 .0 .8 0* 25.3 20.4 124 MARQUETTE 8760 .0 .6 0* 22.6 18.9 120 MIDDLE POWDER 7760 .1 .0 * 24.5 20.0 123 OWL CREEK 8975 .2 .0 * 14.8 11.9 124 POWDER RIVER PASS 9480 2.0 .0 * 25.8 20.0 129 SHELL CREEK 9580 .0 2.8 0 23.4 22.0 106 SYLVAN LAKE 8420 .0 4.1 0 43.8 28.3 155 SYLVAN ROAD 8120 .3 .0 * 34.5 23.8 145 TIMBER CREEK 7950 -M .0 * 17.3 15.1 115 YOUNTS PEAK 8350 .8 1.4 57* 35.1 23.9 147 ----- ----- Basin wide percent of average 74* 130 SHOSHONE RIVER BLACKWATER 9780 14.8 6.1 243 39.6 26.5 149 EVENING STAR 9200 10.7 12.2 88 51.9 32.6 159 KIRWIN 9550 .2 .6 33* 26.5 17.7 150 MARQUETTE 8760 .0 .6 0* 22.6 18.9 120 SYLVAN LAKE 8420 .0 4.1 0 43.8 28.3 155 SYLVAN ROAD 8120 .3 .0 * 34.5 23.8 145 YOUNTS PEAK 8350 .8 1.4 57* 35.1 23.9 147 ----- ----- Basin wide percent of average 106* 148 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .0 * 17.3 15.5 112 BONE SPRINGS DIV 9350 .3 1.7 18* 26.5 24.1 110 BURGESS JUNCTION 7880 .2 .0 * 22.3 19.2 116 CLOUD PEAK RESERVOIR 9860 .1 2.2 5 27.5 23.3 118 DOME LAKE 8880 .0 .6 0* 24.1 21.8 111 GRAVE SPRINGS 8550 .1 -M * 18.2 18.1 101 HANSEN SAWMILL 8760 .0 .0 100* 19.4 14.9 130 LOST CREEK 8080 .0 .8 0* 25.3 20.4 124 MIDDLE POWDER 7760 .1 .0 * 24.5 20.0 123 POWDER RIVER PASS 9480 2.0 .0 * 25.8 20.0 129 SUCKER CREEK 8880 .0 .1 0* 27.2 22.4 121 TIE CREEK 6870 .2 -M * 25.2 18.5 136 ----- ----- Basin wide percent of average 7* 119 BELLE FOURCHE BLIND PARK 6890 .2 .0 * 23.7 20.7 114 NORTH RAPID CREEK 6130 .0 -M * 23.1 -M * WARREN PEAK 6520 .0 .0 100* 29.5 15.5 190 ----- ----- Basin wide percent of average * 147 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 43.1 31.8 136 DIVIDE PEAK 8800 .0 .2 0* 33.6 31.6 106 ELK RIVER 8700 .1 .0 * 34.8 25.6 136 JOE WRIGHT 10120 1.7 5.4 31 44.1 36.4 121 NORTH FRENCH CREEK 10100 5.6 8.8 64 41.5 33.6 124 OLD BATTLE 10000 10.5 7.1 148 50.5 41.1 123 SOUTH BRUSH CREEK 8400 .0 .0 100* 26.1 24.9 105 TOWER 10500 44.8 22.0 204 66.8 50.8 131 WEBBER SPRINGS 9200 .0 1.4 0* 44.8 35.0 128 WILLOW CREEK PASS 9540 .1 .0 * 25.1 19.6 128 ----- ----- Basin wide percent of average 139* 124 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .4 2.8 14* 38.2 28.2 135 CASPER MTN. 7900 .0 .6 0* 30.4 24.5 124 CHRISTINA LAKE 9980 .3 2.5 12 31.3 24.9 126 DEADMAN HILL 10220 .3 2.6 12 28.9 25.9 112 LAPRELE CREEK 8320 .0 .0 100* 22.3 19.6 114 RENO HILL 8400 2.9 .5 580* 30.7 25.9 119 ROACH 9700 .0 .8 0* 31.4 31.5 100 SAND LAKE 10080 9.0 10.1 89 41.5 30.0 138 SOUTH PASS 9040 .2 2.7 7 32.2 25.5 126 WINDY PEAK 7840 .2 .0 * 19.2 17.2 112 ----- ----- Basin wide percent of average 58* 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .4 .0 * 17.3 21.5 80 DIVIDE PEAK 8800 .0 .2 0* 33.6 31.6 106 OLD BATTLE 10000 10.5 7.1 148 50.5 41.1 123 SANDSTONE RS 8150 .0 .0 100* 29.0 26.7 109 WHISKEY PARK 8950 .0 .1 0* 45.2 39.1 116 ----- ----- Basin wide percent of average 142* 110 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 22.8 21.6 106 BLIND BULL SUM 8650 7.9 6.1 130 42.1 30.5 138 EAST RIM DIVIDE 7930 .0 .0 100* 23.5 20.2 116 ELKHART PARK G.S. 9400 .0 .0 100* 26.4 21.2 125 GROS VENTRE SUMMIT 8775 .0 .0 100* 28.0 21.1 133 KENDALL R.S. 7740 .0 .0 100* 30.7 20.7 148 LOOMIS PARK 8240 .0 .0 100* 35.6 25.0 142 NEW FORK LAKE 8340 .0 .0 100* 20.0 19.2 104 SNIDER BASIN 8250 .2 .0 * 23.6 20.2 117 SPRING CREEK DIVIDE 9000 -M .0 * 41.6 34.9 119 TRIPLE PEAK 8500 .0 .0 100* 49.3 40.3 122 ----- ----- Basin wide percent of average 130* 125 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 21.6 17.7 122 HEWINTA 9500 .0 .0 100* 20.7 20.3 102 HICKERSON PARK 9150 .0 .0 100* 15.6 16.5 95 HOLE-IN-ROCK 9150 .2 .0 * 16.2 16.5 98 INDIAN CREEK 9425 1.0 .0 * 40.2 33.5 120 KELLEY R.S. 8180 .0 .0 100* 37.9 24.9 152 STEEL CREEK PARK 10100 .8 2.5 32 24.2 22.0 110 ----- ----- Basin wide percent of average 32* 117 UPPER BEAR RIVER BUG LAKE 7950 .1 .0 * 38.1 25.9 147 HAYDEN FORK 9400 .0 .0 100* 34.3 27.5 125 KELLEY R.S. 8180 .0 .0 100* 37.9 24.9 152 LILY LAKE 9050 .0 .0 100* 27.5 22.4 123 MONTE CRISTO 8960 1.1 2.6 42* 43.8 35.0 125 SALT RIVER SUMMIT 7600 .0 .0 100* 31.7 22.4 142 TRIAL LAKE 9960 -M 2.8 * 43.2 33.0 131 ----- ----- Basin wide percent of average 42* 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.