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: OCTOBER 18 , 2001 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .6 .1 600* 1.6 1.1 145 COTTONWOOD CREEK 7600 .7 .1 700* 1.3 1.2 108 GRANITE CREEK 6770 .3 .1 300* 1.5 1.3 115 GRASSY LAKE 7265 1.7 .2 850* 2.2 1.8 122 GROS VENTRE SUMMIT 8775 1.0 .2 500* .6 .9 67 LEWIS LAKE DIVIDE 7860 1.6 .2 800* 1.9 1.9 100 PHILLIPS BENCH 8200 1.7 .2 850* 1.7 1.4 121 SALT RIVER SUMMIT 7600 .1 .0 * .8 .9 89 SNAKE RIVER STATION 6920 .9 .1 900* 1.5 1.3 115 SPRING CREEK DIVIDE 9000 1.8 .2 900* 1.9 1.2 158 THUMB DIVIDE 7980 .9 .1 900* 1.0 1.0 100 TOGWOTEE PASS 9580 2.2 1.2 183* 2.4 1.4 171 TWO OCEAN PLATEAU 9360 1.9 1.7 112* 1.6 1.5 107 WILLOW CREEK 8450 .3 .2 150* 1.4 1.5 93 ----- ----- Basin wide percent of average 339* 116 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.9 1.8 106* 1.8 1.0 180 BLACK BEAR 7950 -M 1.5 * -M 1.9 * CANYON 7940 .9 .3 300* 1.2 1.0 120 FISHER CREEK 9100 1.9 1.2 158* 2.1 1.6 131 MADISON PLATEAU 7750 1.5 .7 214* 2.1 1.4 150 NORTHEAST ENTRANCE 7350 .2 .1 200* .8 .8 100 PARKER PEAK 9400 1.2 2.1 57* 1.1 1.2 92 SYLVAN LAKE 8420 2.0 1.3 154* 2.2 1.4 157 THUMB DIVIDE 7980 .9 .1 900* 1.0 1.0 100 TWO OCEAN PLATEAU 9360 1.9 1.7 112* 1.6 1.5 107 WHISKEY CREEK 6800 1.4 .3 467* 1.4 1.2 117 WHITE MILL 8700 1.6 1.0 160* 1.5 1.5 100 WOLVERINE 7650 .4 .1 400* 1.4 .9 156 ----- ----- Basin wide percent of average 148* 126 WIND RIVER BURROUGHS CREEK 8750 1.2 .4 300* 1.3 .9 144 COLD SPRINGS 9630 -M .4 * -M 1.0 * DEER PARK 9700 .9 -M * 1.0 -M * HOBBS PARK 10100 .8 1.0 80* .8 1.1 73 LITTLE WARM 9620 1.1 .5 220* 1.2 1.0 120 SOUTH PASS 9040 .4 1.5 27* 1.1 1.2 92 ST. LAWRENCE ALT 8620 .2 .4 50* .3 .9 33 TOGWOTEE PASS 9580 2.2 1.2 183* 2.4 1.4 171 TOWNSEND CREEK 8700 .2 .4 50* .4 1.0 40 ----- ----- Basin wide percent of average 113* 100 BIGHORN BASIN BALD MTN. 9375 2.6 1.6 162* 2.5 1.3 192 BEAR TRAP MEADOW 7900 1.1 .3 367* 1.8 .9 200 BLACKWATER 9780 1.3 1.5 87* 1.2 1.3 92 BONE SPRINGS DIV 9350 2.4 1.9 126 2.5 1.2 208 EVENING STAR 9200 1.8 2.1 86* 2.5 1.6 156 GRAVE SPRINGS 8550 1.2 .6 200* 2.4 1.0 240 KIRWIN 9550 1.2 .8 150* 1.2 .9 133 MARQUETTE 8760 .5 .6 83* .7 1.0 70 MIDDLE POWDER 7760 1.5 .7 214* 2.0 1.2 167 OWL CREEK 8975 .1 .4 25* .4 .5 80 POWDER RIVER PASS 9480 1.2 .6 200* 2.1 1.0 210 SHELL CREEK 9580 2.6 1.7 153* 2.4 1.0 240 SYLVAN LAKE 8420 2.0 1.3 154* 2.2 1.4 157 SYLVAN ROAD 8120 1.0 .8 125* 1.9 1.2 158 TIMBER CREEK 7950 .3 .1 300* .9 .7 129 YOUNTS PEAK 8350 1.4 1.2 117* 1.3 1.0 130 ----- ----- Basin wide percent of average 137* 163 SHOSHONE RIVER BLACKWATER 9780 1.3 1.5 87* 1.2 1.3 92 EVENING STAR 9200 1.8 2.1 86* 2.5 1.6 156 KIRWIN 9550 1.2 .8 150* 1.2 .9 133 MARQUETTE 8760 .5 .6 83* .7 1.0 70 SYLVAN LAKE 8420 2.0 1.3 154* 2.2 1.4 157 SYLVAN ROAD 8120 1.0 .8 125* 1.9 1.2 158 YOUNTS PEAK 8350 1.4 1.2 117* 1.3 1.0 130 ----- ----- Basin wide percent of average 111* 131 POWDER-TONGUE BEAR TRAP MEADOW 7900 1.1 .3 367* 1.8 .9 200 BIG GOOSE 7990 1.2 -M * 2.6 -M * BONE SPRINGS DIV 9350 2.4 1.9 126 2.5 1.2 208 BURGESS JUNCTION 7880 1.2 .9 133* 2.3 1.1 209 CLOUD PEAK RESERVOIR 9860 1.5 .7 214* 3.0 1.2 250 DOME LAKE 8880 1.8 1.1 164* 2.7 1.3 208 GRAVE SPRINGS 8550 1.2 .6 200* 2.4 1.0 240 HANSEN SAWMILL 8760 .4 .4 100* 1.5 .9 167 MIDDLE POWDER 7760 1.5 .7 214* 2.0 1.2 167 POWDER RIVER PASS 9480 1.2 .6 200* 2.1 1.0 210 SUCKER CREEK 8880 1.9 .7 271* 3.1 1.2 258 TIE CREEK 6870 .2 -M * 2.3 1.0 230 ----- ----- Basin wide percent of average 180* 214 BELLE FOURCHE BLIND PARK 6890 .3 .9 33* 2.1 1.0 210 COLE CANYON 5910 .0 .2 0* 1.1 .8 138 NORTH RAPID CREEK 6130 .5 -M * 1.9 -M * ----- ----- Basin wide percent of average 27* 178 UPPER N. PLATTE RIVER COLUMBINE 9400 .3 .7 43* 2.1 1.4 150 DIVIDE PEAK 8800 .9 .9 100* 2.0 1.7 118 ELK RIVER 8700 .1 .1 100* 1.4 1.3 108 JOE WRIGHT 10120 .7 1.5 47* 1.7 1.9 89 NORTH FRENCH CREEK 10100 2.8 .9 311* 2.7 1.3 208 OLD BATTLE 10000 1.2 2.1 57* 2.2 1.8 122 SOUTH BRUSH CREEK 8400 .2 .2 100* 1.5 1.3 115 TOWER 10500 2.1 2.8 75* 2.3 2.2 105 WEBBER SPRINGS 9200 .7 .7 100* 1.6 1.6 100 WILLOW CREEK PASS 9540 .0 .4 0* .8 1.0 80 ----- ----- Basin wide percent of average 87* 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.8 1.1 164* 2.2 1.3 169 CASPER MTN. 7900 2.4 .6 400* 3.0 1.4 214 DEADMAN HILL 10220 .6 .6 100* 1.1 1.3 85 DEER PARK 9700 .9 -M * 1.0 -M * LAPRELE CREEK 8320 -M .2 * 2.8 .8 350 RENO HILL 8400 2.3 .8 287* 3.1 1.4 221 ROACH 9700 .3 .6 50* .9 1.5 60 SAND LAKE 10080 3.0 1.3 231* 2.9 1.4 207 SOUTH PASS 9040 .4 1.5 27* 1.1 1.2 92 WINDY PEAK 7840 .6 .0 * 2.7 .7 386 ----- ----- Basin wide percent of average 166* 180 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .1 200* 1.6 1.0 160 DIVIDE PEAK 8800 .9 .9 100* 2.0 1.7 118 OLD BATTLE 10000 1.2 2.1 57* 2.2 1.8 122 SANDSTONE RS 8150 -M .1 * 2.0 .9 222 WHISKEY PARK 8950 1.0 .9 111* 2.1 1.0 210 ----- ----- Basin wide percent of average 82* 155 UPPER GREEN RIVER BIG SANDY OPENING 9100 .9 .1 900* .6 .9 67 BLIND BULL SUM 8650 2.0 .4 500* 1.6 1.1 145 EAST RIM DIVIDE 7930 .6 .1 600* .6 .8 75 ELKHART PARK G.S. 9400 .7 .2 350* .7 .9 78 GROS VENTRE SUMMIT 8775 1.0 .2 500* .6 .9 67 KENDALL R.S. 7740 .0 .0 100* .8 .8 100 LOOMIS PARK 8240 1.2 .1 1200* 1.2 1.0 120 NEW FORK LAKE 8340 .6 .0 * .7 .8 87 SNIDER BASIN 8250 1.0 .0 * 1.4 .8 175 SPRING CREEK DIVIDE 9000 1.8 .2 900* 1.9 1.2 158 TRIPLE PEAK 8500 1.5 .2 750* 2.1 1.5 140 ----- ----- Basin wide percent of average 647* 114 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * .2 .7 29 HEWINTA 9500 .0 .1 0* 1.2 1.3 92 HICKERSON PARK 9150 .1 .0 * .6 1.2 50 HOLE-IN-ROCK 9150 .0 .0 100* 1.3 1.2 108 INDIAN CREEK 9425 .8 .3 267* .7 1.3 54 KELLEY R.S. 8180 .2 .1 200* .5 1.0 50 STEEL CREEK PARK 10100 .8 1.0 80* 1.0 1.3 77 ----- ----- Basin wide percent of average 120* 69 UPPER BEAR RIVER BUG LAKE 7950 .0 .7 0* .4 1.8 22 HAYDEN FORK 9400 .0 .4 0* 1.0 1.4 71 KELLEY R.S. 8180 .2 .1 200* .5 1.0 50 LILY LAKE 9050 .0 .5 0* 1.1 1.5 73 MONTE CRISTO 8960 -M .8 * .6 1.9 32 SALT RIVER SUMMIT 7600 .1 .0 * .8 .9 89 TRIAL LAKE 9960 .0 .9 0* 1.2 1.6 75 ----- ----- Basin wide percent of average 8* 55 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values 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.