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 27 , 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 .5 120* 2.6 1.7 153 COTTONWOOD CREEK 7600 .9 .5 180* 2.4 1.8 133 GRANITE CREEK 6770 .4 .4 100* 2.5 1.9 132 GRASSY LAKE 7265 1.3 .8 162* 2.8 2.8 100 GROS VENTRE SUMMIT 8775 1.6 .8 200* 1.3 1.3 100 LEWIS LAKE DIVIDE 7860 1.7 1.0 170* 2.7 2.9 93 PHILLIPS BENCH 8200 2.4 .8 300* 2.8 2.2 127 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 1.4 86 SNAKE RIVER STATION 6920 .0 .4 0* 2.0 1.9 105 SPRING CREEK DIVIDE 9000 2.9 1.0 290* 3.0 1.8 167 THUMB DIVIDE 7980 .8 .4 200* 1.5 1.6 94 TOGWOTEE PASS 9580 3.1 1.9 163* 3.3 2.1 157 TWO OCEAN PLATEAU 9360 3.0 2.9 103 2.6 2.3 113 WILLOW CREEK 8450 .9 .8 112* 2.6 2.3 113 ----- ----- Basin wide percent of average 161* 119 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 3.2 2.6 123* 3.2 1.6 200 BLACK BEAR 7950 -M 2.3 * -M 2.9 * CANYON 7940 1.1 .6 183* 1.7 1.5 113 FISHER CREEK 9100 3.7 2.1 176* 4.1 2.5 164 MADISON PLATEAU 7750 -M 1.2 * -M 2.1 * NORTHEAST ENTRANCE 7350 .1 .2 50* 1.3 1.3 100 PARKER PEAK 9400 -M 3.1 * -M 1.8 * SYLVAN LAKE 8420 2.0 2.1 95* 2.7 2.2 123 THUMB DIVIDE 7980 .8 .4 200* 1.5 1.6 94 TWO OCEAN PLATEAU 9360 3.0 2.9 103 2.6 2.3 113 WHISKEY CREEK 6800 -M .6 * -M 1.8 * WHITE MILL 8700 3.3 1.6 206* 3.0 2.3 130 WOLVERINE 7650 .2 .2 100* 2.4 1.3 185 ----- ----- Basin wide percent of average 137* 136 WIND RIVER BURROUGHS CREEK 8750 2.2 .7 314* 2.4 1.3 185 COLD SPRINGS 9630 .5 .7 71* .9 1.6 56 DEER PARK 9700 1.3 -M * 1.7 -M * HOBBS PARK 10100 1.2 1.7 71* 1.2 1.7 71 LITTLE WARM 9620 1.5 .8 188* 1.8 1.5 120 SOUTH PASS 9040 .6 2.2 27 1.4 1.8 78 ST. LAWRENCE ALT 8620 .0 .7 0* .5 1.4 36 TOGWOTEE PASS 9580 3.1 1.9 163* 3.3 2.1 157 TOWNSEND CREEK 8700 .1 .8 12* .5 1.6 31 ----- ----- Basin wide percent of average 97* 92 BIGHORN BASIN BALD MTN. 9375 3.8 2.2 173* 3.6 1.9 189 BEAR TRAP MEADOW 7900 1.2 .6 200* 2.1 1.3 162 BLACKWATER 9780 2.7 2.1 129* 2.2 2.0 110 BONE SPRINGS DIV 9350 3.4 2.4 142 3.6 1.8 200 EVENING STAR 9200 2.8 3.2 87 3.9 2.4 162 GRAVE SPRINGS 8550 1.2 .9 133* 2.6 1.6 162 KIRWIN 9550 1.7 1.3 131 1.8 1.3 138 MARQUETTE 8760 .9 .9 100* 1.3 1.5 87 MIDDLE POWDER 7760 1.4 1.1 127* 2.3 1.8 128 OWL CREEK 8975 .1 .5 20 .5 .8 62 POWDER RIVER PASS 9480 2.2 1.0 220* 3.2 1.6 200 SHELL CREEK 9580 3.6 2.2 164 3.4 1.6 212 SYLVAN LAKE 8420 2.0 2.1 95* 2.7 2.2 123 SYLVAN ROAD 8120 .6 1.3 46 2.7 1.8 150 TIMBER CREEK 7950 .1 .2 50* 1.0 1.1 91 YOUNTS PEAK 8350 2.0 1.9 105 2.0 1.6 125 ----- ----- Basin wide percent of average 124* 148 SHOSHONE RIVER BLACKWATER 9780 2.7 2.1 129* 2.2 2.0 110 EVENING STAR 9200 2.8 3.2 87 3.9 2.4 162 KIRWIN 9550 1.7 1.3 131 1.8 1.3 138 MARQUETTE 8760 .9 .9 100* 1.3 1.5 87 SYLVAN LAKE 8420 2.0 2.1 95* 2.7 2.2 123 SYLVAN ROAD 8120 .6 1.3 46 2.7 1.8 150 YOUNTS PEAK 8350 2.0 1.9 105 2.0 1.6 125 ----- ----- Basin wide percent of average 99 130 POWDER-TONGUE BEAR TRAP MEADOW 7900 1.2 .6 200* 2.1 1.3 162 BIG GOOSE 7990 1.5 -M * 3.1 -M * BONE SPRINGS DIV 9350 3.4 2.4 142 3.6 1.8 200 BURGESS JUNCTION 7880 1.7 1.3 131* 3.0 1.7 176 CLOUD PEAK RESERVOIR 9860 2.4 1.1 218* 4.0 1.8 222 DOME LAKE 8880 2.4 1.6 150 3.7 1.9 195 GRAVE SPRINGS 8550 1.2 .9 133* 2.6 1.6 162 HANSEN SAWMILL 8760 .6 .7 86* 2.0 1.3 154 MIDDLE POWDER 7760 1.4 1.1 127* 2.3 1.8 128 POWDER RIVER PASS 9480 2.2 1.0 220* 3.2 1.6 200 SUCKER CREEK 8880 2.5 1.0 250* 4.1 1.8 228 TIE CREEK 6870 .0 -M * 2.8 1.6 175 ----- ----- Basin wide percent of average 162* 184 BELLE FOURCHE BLIND PARK 6890 .3 1.4 21 2.7 1.5 180 COLE CANYON 5910 .1 .6 17 1.2 1.2 100 NORTH RAPID CREEK 6130 .4 -M * 2.3 -M * ----- ----- Basin wide percent of average 20 144 UPPER N. PLATTE RIVER COLUMBINE 9400 .2 1.3 15* 1.9 2.1 90 DIVIDE PEAK 8800 .6 1.7 35* 1.8 2.6 69 ELK RIVER 8700 .1 .3 33* 1.6 1.9 84 JOE WRIGHT 10120 1.9 2.5 76 2.2 2.9 76 NORTH FRENCH CREEK 10100 2.6 1.7 153* 2.1 1.9 111 OLD BATTLE 10000 1.0 3.1 32* 2.4 2.7 89 SOUTH BRUSH CREEK 8400 .1 .3 33* 1.4 1.9 74 TOWER 10500 1.8 4.9 37* 2.5 3.4 74 WEBBER SPRINGS 9200 .3 1.5 20* 1.7 2.5 68 WILLOW CREEK PASS 9540 .0 .8 0* .6 1.5 40 ----- ----- Basin wide percent of average 48* 78 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.8 1.6 112* 2.8 2.0 140 CASPER MTN. 7900 2.0 1.0 200* 3.1 2.1 148 DEADMAN HILL 10220 .8 1.1 73* 1.3 2.0 65 DEER PARK 9700 1.3 -M * 1.7 -M * LAPRELE CREEK 8320 .7 .7 100* 2.8 1.3 215 RENO HILL 8400 2.0 1.4 143* 3.1 2.1 148 ROACH 9700 .4 1.1 36* 1.2 2.3 52 SAND LAKE 10080 2.9 2.5 116* 3.0 2.2 136 SOUTH PASS 9040 .6 2.2 27 1.4 1.8 78 WINDY PEAK 7840 .2 .1 200* 2.5 1.0 250 ----- ----- Basin wide percent of average 97* 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .3 67* .9 1.5 60 DIVIDE PEAK 8800 .6 1.7 35* 1.8 2.6 69 OLD BATTLE 10000 1.0 3.1 32* 2.4 2.7 89 SANDSTONE RS 8150 .0 .6 0* 1.9 1.4 136 WHISKEY PARK 8950 1.2 1.8 67* 2.1 1.6 131 ----- ----- Basin wide percent of average 40* 93 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.4 .5 280* 1.0 1.3 77 BLIND BULL SUM 8650 3.0 1.6 188* 2.6 1.7 153 EAST RIM DIVIDE 7930 .7 .3 233* 1.0 1.3 77 ELKHART PARK G.S. 9400 1.3 .7 186* 1.3 1.3 100 GROS VENTRE SUMMIT 8775 1.6 .8 200* 1.3 1.3 100 KENDALL R.S. 7740 .8 .0 * 1.6 1.3 123 LOOMIS PARK 8240 1.9 .4 475* 2.1 1.5 140 NEW FORK LAKE 8340 .9 .0 * 1.2 1.2 100 SNIDER BASIN 8250 .9 .0 * 2.2 1.3 169 SPRING CREEK DIVIDE 9000 2.9 1.0 290* 3.0 1.8 167 TRIPLE PEAK 8500 2.5 .7 357* 3.7 2.3 161 ----- ----- Basin wide percent of average 255* 129 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * .3 1.1 27 HEWINTA 9500 -M .2 * 1.8 2.0 90 HICKERSON PARK 9150 .1 .1 100* .7 1.8 39 HOLE-IN-ROCK 9150 .0 .1 0* 1.8 1.8 100 INDIAN CREEK 9425 1.6 1.2 133* 1.4 1.9 74 KELLEY R.S. 8180 .2 .4 50* .8 1.5 53 STEEL CREEK PARK 10100 1.2 1.6 75* 1.2 2.0 60 ----- ----- Basin wide percent of average 91* 66 UPPER BEAR RIVER BUG LAKE 7950 -M 1.0 * .6 2.8 21 HAYDEN FORK 9400 .1 .7 14* 1.4 2.1 67 KELLEY R.S. 8180 .2 .4 50* .8 1.5 53 LILY LAKE 9050 .0 .8 0* 1.3 2.3 57 MONTE CRISTO 8960 .0 1.2 0* 1.6 2.9 55 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 1.4 86 TRIAL LAKE 9960 .1 1.5 7* 1.6 2.4 67 ----- ----- Basin wide percent of average 9* 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.