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 MONDAY: OCTOBER 25 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .9 .3 300* 1.9 1.5 127 COTTONWOOD CREEK 7670 .7 .6 117* 2.9 2.3 126 GRAND TARGHEE 9260 2.5 -M * 2.5 -M * GRANITE CREEK 6770 .6 .3 200* 1.9 1.3 146 GRASSY LAKE 7265 .7 .9 78* 3.0 2.5 120 GROS VENTRE SUMMIT 8750 .9 1.0 90* 1.2 1.4 86 GUNSIGHT PASS 9820 .9 -M * 1.5 -M * LEWIS LAKE DIVIDE 7850 1.9 .7 271* 3.2 2.3 139 PHILLIPS BENCH 8200 1.7 .9 189* 2.1 1.7 124 SALT RIVER SUMMIT 7760 .5 .2 250* 2.1 1.5 140 SNAKE RIVER STATION 6920 .6 .3 200* 2.3 1.7 135 SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.0 1.8 111 THUMB DIVIDE 7980 .8 .5 160* 1.3 1.6 81 TOGWOTEE PASS 9580 1.5 1.9 79* 2.2 2.1 105 TWO OCEAN PLATEAU 9240 2.3 2.3 100* 1.9 2.3 83 WILLOW CREEK 8380 .8 1.2 67* 3.7 2.9 128 ----- ----- Basin wide percent of average 124* 118 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.4 2.1 67* 1.9 1.6 119 BLACK BEAR 8170 1.6 1.8 89* 3.6 2.5 144 CANYON 7870 .4 .4 100* 1.4 1.4 100 FISHER CREEK 9100 1.1 1.9 58* 2.0 2.5 80 MADISON PLATEAU 7750 .5 1.0 50* 2.0 2.0 100 NORTHEAST ENTRANCE 7350 .0 .2 0* 1.5 1.2 125 PARKER PEAK 9400 .5 2.2 23* 1.5 1.9 79 SYLVAN LAKE 8420 .7 1.4 50* 2.1 2.0 105 THUMB DIVIDE 7980 .8 .5 160* 1.3 1.6 81 TWO OCEAN PLATEAU 9240 2.3 2.3 100* 1.9 2.3 83 WHISKEY CREEK 6800 .1 .4 25* 1.5 1.7 88 WHITE MILL 8700 .6 1.3 46* 1.9 2.1 90 WOLVERINE 7650 .2 .3 67* 1.2 1.5 80 ----- ----- Basin wide percent of average 65* 98 WIND RIVER BURROUGHS CREEK 8750 1.1 .6 183* 1.1 1.3 85 CASTLE CREEK 8400 .3 -M * .7 -M * COLD SPRINGS 9630 .2 .8 25* .4 1.5 27 DEER PARK 9700 1.2 1.7 71* 1.8 2.0 90 HOBBS PARK 10100 .6 1.9 32 .7 1.7 41 LITTLE WARM 9370 .4 .8 50* .4 1.4 29 SOUTH PASS 9040 .6 1.2 50* 1.3 1.6 81 ST. LAWRENCE ALT 8620 .0 .7 0* .6 1.4 43 TOGWOTEE PASS 9580 1.5 1.9 79* 2.2 2.1 105 TOWNSEND CREEK 8700 .2 .8 25* 1.2 1.7 71 ----- ----- Basin wide percent of average 56* 66 BIGHORN BASIN BALD MTN. 9380 .5 2.2 23* 1.5 1.9 79 BEAR TRAP MEADOW 8200 .0 .5 0* 1.3 1.4 93 BLACKWATER 9780 1.6 2.5 64* 1.6 2.1 76 BONE SPRINGS DIV 9350 .7 2.0 35 .8 2.0 40 EVENING STAR 9200 .9 2.0 45* 1.8 2.1 86 GRAVE SPRINGS 8550 .0 .9 0* .7 1.7 41 KIRWIN 9550 1.0 1.5 67 1.2 1.4 86 MARQUETTE 8760 .0 1.5 0 .4 1.9 21 MIDDLE POWDER 7760 .0 1.0 0* .8 2.1 38 OWL CREEK 8975 .0 .7 0 .4 .9 44 POWDER RIVER PASS 9480 .7 .9 78* 1.4 1.6 88 SHELL CREEK 9580 1.2 2.2 55 .6 1.6 38 SYLVAN LAKE 8420 .7 1.4 50* 2.1 2.0 105 SYLVAN ROAD 7120 .0 .3 0* 1.6 1.5 107 TIMBER CREEK 7950 .0 .8 0 .5 1.3 38 YOUNTS PEAK 8350 .9 1.1 82* 1.3 1.5 87 ----- ----- Basin wide percent of average 38* 67 SHOSHONE RIVER BLACKWATER 9780 1.6 2.5 64* 1.6 2.1 76 EVENING STAR 9200 .9 2.0 45* 1.8 2.1 86 KIRWIN 9550 1.0 1.5 67 1.2 1.4 86 MARQUETTE 8760 .0 1.5 0 .4 1.9 21 SYLVAN LAKE 8420 .7 1.4 50* 2.1 2.0 105 SYLVAN ROAD 7120 .0 .3 0* 1.6 1.5 107 YOUNTS PEAK 8350 .9 1.1 82* 1.3 1.5 87 ----- ----- Basin wide percent of average 50* 80 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .5 0* 1.3 1.4 93 BIG GOOSE 7990 .0 .6 0* 1.7 1.8 94 BONE SPRINGS DIV 9350 .7 2.0 35 .8 2.0 40 BURGESS JUNCTION 7880 .1 1.2 8* 1.3 1.8 72 CLOUD PEAK RESERVOIR 9860 .7 1.3 54* 1.9 2.1 90 DOME LAKE 8880 .0 1.4 0 1.2 2.0 60 GRAVE SPRINGS 8550 .0 .9 0* .7 1.7 41 HANSEN SAWMILL 8360 .0 .6 0* .8 1.5 53 LITTLE GOOSE 8870 .0 -M * 2.8 -M * MIDDLE POWDER 7760 .0 1.0 0* .8 2.1 38 POWDER RIVER PASS 9480 .7 .9 78* 1.4 1.6 88 SOLDIER PARK 8720 .0 -M * 1.0 -M * SUCKER CREEK 8880 .0 1.0 0* .7 2.0 35 TIE CREEK 6870 .0 .6 0* .9 2.1 43 ----- ----- Basin wide percent of average 18* 61 BELLE FOURCHE BLIND PARK 6890 .0 .2 0* 3.0 2.1 143 COLE CANYON 5910 .0 .6 0* .8 1.5 53 NORTH RAPID CREEK 6130 .0 .3 0* 3.2 2.0 160 ----- ----- Basin wide percent of average 0* 125 UPPER N. PLATTE RIVER COLUMBINE 9160 .9 .4 225* 3.4 1.8 189 DIVIDE PEAK 8880 .4 1.3 31* 2.4 2.1 114 ELK RIVER 8700 .7 .4 175* 2.7 1.7 159 JOE WRIGHT 10120 2.3 1.8 128* 5.4 2.7 200 NORTH FRENCH CREEK 10130 1.7 2.4 71* 2.8 2.5 112 OLD BATTLE 10000 2.9 2.2 132* 3.7 2.7 137 SAGE CREEK BASIN 7850 .1 .8 13* 2.5 1.2 208 SOUTH BRUSH CREEK 8440 .6 .4 150* 2.5 2.1 119 TOWER 10500 4.1 2.3 178* 5.1 2.9 176 WEBBER SPRINGS 9250 1.0 1.2 83* 3.3 2.3 143 WILLOW CREEK PASS 9540 1.2 .8 150* -M 1.6 * ----- ----- Basin wide percent of average 114* 154 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .9 1.6 56* 1.9 1.8 106 CASPER MTN. 7900 .0 1.3 0* 1.7 2.0 85 DEADMAN HILL 10220 2.5 1.7 147* 4.1 2.0 205 DEER PARK 9700 1.2 1.7 71* 1.8 2.0 90 LAPRELE CREEK 8375 .0 .7 0* .8 1.5 53 RENO HILL 8400 .1 1.3 8* 1.3 2.0 65 ROACH 9700 1.2 .7 171* 2.6 1.8 144 SAND LAKE 10050 2.8 2.4 117* 3.0 2.3 130 SOUTH PASS 9040 .6 1.2 50* 1.3 1.6 81 WINDY PEAK 7900 .1 .3 33* 2.0 1.3 154 ----- ----- Basin wide percent of average 73* 112 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .3 0* 2.8 1.5 187 DIVIDE PEAK 8880 .4 1.3 31* 2.4 2.1 114 OLD BATTLE 10000 2.9 2.2 132* 3.7 2.7 137 SANDSTONE RS 8150 .0 .3 0* 2.9 1.8 161 WHISKEY PARK 8950 1.4 1.2 117* 3.2 2.3 139 ----- ----- Basin wide percent of average 89* 144 UPPER GREEN RIVER BIG SANDY OPENING 9080 .7 .9 78* 1.9 1.4 136 BLIND BULL SUM 8650 1.8 1.1 164* 1.7 1.6 106 EAST RIM DIVIDE 7930 .1 .3 33* .7 1.0 70 ELKHART PARK G.S. 9400 .4 .6 67* 1.3 1.5 87 GROS VENTRE SUMMIT 8750 .9 1.0 90* 1.2 1.4 86 GUNSIGHT PASS 9820 .9 -M * 1.5 -M * KENDALL R.S. 7740 .2 .4 50* 1.5 1.2 125 LOOMIS PARK 8240 .6 .6 100* 1.4 1.4 100 NEW FORK LAKE 8340 .2 .3 67* .5 1.2 42 POCKET CREEK 9360 .5 -M * 1.6 -M * SNIDER BASIN 8060 .4 .5 80* 1.7 1.2 142 SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.0 1.8 111 TRIPLE PEAK 8500 .8 .7 114* 2.2 1.7 129 ----- ----- Basin wide percent of average 97* 105 LOWER GREEN RIVER HAMS FORK 7840 .4 .2 200* 1.3 1.1 118 HEWINTA 9519 .3 .7 43* 1.7 1.9 89 HICKERSON PARK 9145 .0 .3 0* .9 1.3 69 HOLE-IN-ROCK 9150 .2 .3 67* 1.0 1.3 77 INDIAN CREEK 9425 1.1 1.0 110* 2.2 1.9 116 KELLEY R.S. 8180 .3 .6 50* 2.5 1.6 156 STEEL CREEK PARK 10200 .1 1.3 8* 2.0 1.8 111 ----- ----- Basin wide percent of average 55* 106 UPPER BEAR RIVER BUG LAKE 7950 .8 .9 89* 3.1 1.8 172 HAYDEN FORK 9212 .3 .6 50* 3.3 1.9 174 KELLEY R.S. 8180 .3 .6 50* 2.5 1.6 156 LILY LAKE 9156 .1 .8 13* 2.7 1.9 142 MONTE CRISTO 8960 .8 1.2 67* 3.0 2.2 136 SALT RIVER SUMMIT 7760 .5 .2 250* 2.1 1.5 140 TRIAL LAKE 9992 2.5 1.4 179* 4.0 2.1 190 ----- ----- Basin wide percent of average 93* 159 ----------------------------------------------------------------------------- -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 1971-2000. 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.