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 SATURDAY: OCTOBER 18 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .1 200* 1.5 1.1 136 COTTONWOOD CREEK 7600 .1 .1 100* 1.8 1.2 150 GRANITE CREEK 6770 .2 .1 200* .5 1.3 38 GRASSY LAKE 7265 .2 .2 100* 2.4 1.8 133 GROS VENTRE SUMMIT 8775 1.1 .2 550* .9 .9 100 LEWIS LAKE DIVIDE 7860 .1 .2 50* 1.7 1.9 89 PHILLIPS BENCH 8200 .3 .2 150* 1.2 1.4 86 SALT RIVER SUMMIT 7600 .1 .0 * 2.2 .9 244 SNAKE RIVER STATION 6920 .0 .1 0* 1.1 1.3 85 SPRING CREEK DIVIDE 9000 .4 .2 200* .9 1.2 75 THUMB DIVIDE 7980 .2 .1 200* 1.4 1.0 140 TOGWOTEE PASS 9580 1.3 1.2 108* 1.4 1.4 100 TWO OCEAN PLATEAU 9360 1.5 1.7 88* 2.2 1.5 147 WILLOW CREEK 8450 .1 .2 50* 2.8 1.5 187 ----- ----- Basin wide percent of average 124* 120 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.2 1.8 67* 1.4 1.0 140 BLACK BEAR 7950 1.7 1.5 113* 2.4 1.9 126 CANYON 7940 .9 .3 300* 2.0 1.0 200 FISHER CREEK 9100 2.0 1.2 167* 2.2 1.6 138 MADISON PLATEAU 7750 .7 .7 100* 1.8 1.4 129 NORTHEAST ENTRANCE 7350 .0 .1 0* 1.7 .8 212 PARKER PEAK 9400 1.5 2.1 71* 2.1 1.2 175 SYLVAN LAKE 8420 1.5 1.3 115* 3.3 1.4 236 THUMB DIVIDE 7980 .2 .1 200* 1.4 1.0 140 TWO OCEAN PLATEAU 9360 1.5 1.7 88* 2.2 1.5 147 WHISKEY CREEK 6800 .0 .3 0* 1.5 1.2 125 WHITE MILL 8700 1.4 1.0 140* 2.0 1.5 133 WOLVERINE 7650 .0 .1 0* 1.6 .9 178 ----- ----- Basin wide percent of average 103* 156 WIND RIVER BURROUGHS CREEK 8750 .4 .4 100* .7 .9 78 COLD SPRINGS 9630 .1 .4 25* .4 1.0 40 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 .3 1.0 30* .6 1.1 55 LITTLE WARM 9620 .1 .5 20* 1.3 1.0 130 SOUTH PASS 9040 .1 1.5 7* 1.2 1.2 100 ST. LAWRENCE ALT 8620 .2 .4 50* .6 .9 67 TOGWOTEE PASS 9580 1.3 1.2 108* 1.4 1.4 100 TOWNSEND CREEK 8700 .1 .4 25* .9 1.0 90 ----- ----- Basin wide percent of average 45* 84 BIGHORN BASIN BALD MTN. 9375 2.2 1.6 138* 2.3 1.3 177 BEAR TRAP MEADOW 7900 .1 .3 33* 1.0 .9 111 BLACKWATER 9780 1.2 1.5 80* 1.5 1.3 115 BONE SPRINGS DIV 9350 1.4 1.9 74 1.9 1.2 158 EVENING STAR 9200 1.1 2.1 52* 2.2 1.6 138 GRAVE SPRINGS 8550 .1 -M * .9 1.0 90 KIRWIN 9550 .8 .8 100* 1.0 .9 111 LOST CREEK 8080 -M .7 * -M 1.1 * MARQUETTE 8760 1.1 .6 183* 1.6 1.0 160 MIDDLE POWDER 7760 -M .7 * 1.3 1.2 108 OWL CREEK 8975 .5 .4 125* .9 .5 180 POWDER RIVER PASS 9480 .1 .6 17* 1.1 1.0 110 SHELL CREEK 9580 1.3 1.7 76* 1.2 1.0 120 SYLVAN LAKE 8420 1.5 1.3 115* 3.3 1.4 236 SYLVAN ROAD 8120 .0 .8 0* 1.7 1.2 142 TIMBER CREEK 7950 .7 .1 700* 1.4 .7 200 YOUNTS PEAK 8350 .5 1.2 42* .7 1.0 70 ----- ----- Basin wide percent of average 84* 140 SHOSHONE RIVER BLACKWATER 9780 1.2 1.5 80* 1.5 1.3 115 EVENING STAR 9200 1.1 2.1 52* 2.2 1.6 138 KIRWIN 9550 .8 .8 100* 1.0 .9 111 MARQUETTE 8760 1.1 .6 183* 1.6 1.0 160 SYLVAN LAKE 8420 1.5 1.3 115* 3.3 1.4 236 SYLVAN ROAD 8120 .0 .8 0* 1.7 1.2 142 YOUNTS PEAK 8350 .5 1.2 42* .7 1.0 70 ----- ----- Basin wide percent of average 75* 143 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .3 33* 1.0 .9 111 BONE SPRINGS DIV 9350 1.4 1.9 74 1.9 1.2 158 BURGESS JUNCTION 7880 .2 .9 22* 1.4 1.1 127 CLOUD PEAK RESERVOIR 9860 .0 .7 0* 1.7 1.2 142 DOME LAKE 8880 .5 1.1 45* 1.4 1.3 108 GRAVE SPRINGS 8550 .1 -M * .9 1.0 90 HANSEN SAWMILL 8760 .1 .4 25* .8 .9 89 LOST CREEK 8080 -M .7 * -M 1.1 * MIDDLE POWDER 7760 -M .7 * 1.3 1.2 108 POWDER RIVER PASS 9480 .1 .6 17* 1.1 1.0 110 SUCKER CREEK 8880 -M .7 * 1.8 1.2 150 TIE CREEK 6870 .0 -M * 1.3 1.0 130 ----- ----- Basin wide percent of average 41* 122 BELLE FOURCHE BLIND PARK 6890 .1 .9 11* 1.2 1.0 120 NORTH RAPID CREEK 6130 .2 -M * 1.0 -M * WARREN PEAK 6520 .1 .9 11* 1.5 .8 188 ----- ----- Basin wide percent of average 11* 150 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .7 0* 2.0 1.4 143 DIVIDE PEAK 8800 .5 .9 56* 1.8 1.7 106 ELK RIVER 8700 .0 .1 0* 1.8 1.3 138 JOE WRIGHT 10120 1.3 1.5 87* 3.0 1.9 158 NORTH FRENCH CREEK 10100 .9 .9 100* 2.2 1.3 169 OLD BATTLE 10000 1.3 2.1 62* 3.2 1.8 178 SOUTH BRUSH CREEK 8400 .0 .2 0* 1.3 1.3 100 TOWER 10500 1.7 2.8 61* 16.3 2.2 741 WEBBER SPRINGS 9200 .0 .7 0* 2.3 1.6 144 WILLOW CREEK PASS 9540 .8 .4 200* 1.5 1.0 150 ----- ----- Basin wide percent of average 63* 228 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 1.1 0* .8 1.3 62 CASPER MTN. 7900 -M .6 * -M 1.4 * DEADMAN HILL 10220 .7 .6 117* .8 1.3 62 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 .1 .2 50* 1.0 .8 125 RENO HILL 8400 .7 .8 88* 1.2 1.4 86 ROACH 9700 .0 .6 0* 1.1 1.5 73 SAND LAKE 10080 1.3 1.3 100* 1.8 1.4 129 SOUTH PASS 9040 .1 1.5 7* 1.2 1.2 100 WINDY PEAK 7840 .1 .0 * .7 .7 100 ----- ----- Basin wide percent of average 48* 90 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .1 0* 2.3 1.0 230 DIVIDE PEAK 8800 .5 .9 56* 1.8 1.7 106 OLD BATTLE 10000 1.3 2.1 62* 3.2 1.8 178 SANDSTONE RS 8150 .0 .1 0* 2.2 .9 244 WHISKEY PARK 8950 .4 .9 44* 2.5 1.0 250 ----- ----- Basin wide percent of average 54* 188 UPPER GREEN RIVER BIG SANDY OPENING 9100 .9 .1 900* 1.2 .9 133 BLIND BULL SUM 8650 .4 .4 100* 1.0 1.1 91 EAST RIM DIVIDE 7930 .0 .1 0* .3 .8 38 ELKHART PARK G.S. 9400 .7 .2 350* 1.3 .9 144 GROS VENTRE SUMMIT 8775 1.1 .2 550* .9 .9 100 KENDALL R.S. 7740 .1 .0 * .7 .8 88 LOOMIS PARK 8240 .0 .1 0* .6 1.0 60 NEW FORK LAKE 8340 .0 .0 100* .9 .8 112 SNIDER BASIN 8250 .0 .0 100* .3 .8 38 SPRING CREEK DIVIDE 9000 .4 .2 200* .9 1.2 75 TRIPLE PEAK 8500 .1 .2 50* 1.1 1.5 73 ----- ----- Basin wide percent of average 240* 86 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .5 .7 71 HEWINTA 9500 .0 .1 0* 1.9 1.3 146 HICKERSON PARK 9150 .0 .0 100* 1.4 1.2 117 HOLE-IN-ROCK 9150 .0 .0 100* 1.5 1.2 125 INDIAN CREEK 9425 .7 .3 233* .7 1.3 54 KELLEY R.S. 8180 .1 .1 100* .7 1.0 70 STEEL CREEK PARK 10100 1.0 1.0 100* 2.2 1.3 169 ----- ----- Basin wide percent of average 120* 111 UPPER BEAR RIVER BUG LAKE 7950 .0 .7 0* 1.2 1.8 67 HAYDEN FORK 9400 .0 .4 0* 1.5 1.4 107 KELLEY R.S. 8180 .1 .1 100* .7 1.0 70 LILY LAKE 9050 -M .5 * 1.6 1.5 107 MONTE CRISTO 8960 .1 .8 12* 1.6 1.9 84 SALT RIVER SUMMIT 7600 .1 .0 * 2.2 .9 244 TRIAL LAKE 9960 .2 .9 22* 1.3 1.6 81 ----- ----- Basin wide percent of average 14* 100 ----------------------------------------------------------------------------- -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.