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 WEDNESDAY: OCTOBER 29 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .5 0 1.7 1.9 89 COTTONWOOD CREEK 7670 .1 .8 12 1.6 2.8 57 GRAND TARGHEE 9260 1.9 -M * 3.4 -M * GRANITE CREEK 6770 .1 .4 25 1.8 1.6 112 GRASSY LAKE 7265 .0 1.2 0 2.1 3.0 70 GROS VENTRE SUMMIT 8750 1.7 1.3 131 2.2 1.7 129 GUNSIGHT PASS 9820 .6 -M * 1.5 -M * LEWIS LAKE DIVIDE 7850 .1 1.0 10 2.1 2.8 75 PHILLIPS BENCH 8200 .8 1.2 67 1.8 2.1 86 SALT RIVER SUMMIT 7760 .0 .3 0 1.3 1.8 72 SNAKE RIVER STATION 6920 .0 .5 0 1.4 2.1 67 SPRING CREEK DIVIDE 9000 .5 1.3 38 1.3 2.3 57 THUMB DIVIDE 7980 .0 .7 0 2.3 1.9 121 TOGWOTEE PASS 9580 2.3 2.3 100 2.9 2.6 112 TWO OCEAN PLATEAU 9240 3.8 2.8 136 2.0 2.8 71 WILLOW CREEK 8380 .0 1.6 0 2.3 3.4 68 ----- ----- Basin wide percent of average 59 82 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.5 2.5 60 1.6 1.9 84 BLACK BEAR 8170 1.1 2.5 44 3.3 3.1 106 CANYON 7870 .0 .6 0 .8 1.7 47 FISHER CREEK 9100 1.6 2.4 67 2.5 3.0 83 MADISON PLATEAU 7750 .0 1.5 0 1.8 2.3 78 NORTHEAST ENTRANCE 7350 .0 .2 0 1.1 1.4 79 PARKER PEAK 9400 2.7 2.4 113 1.7 2.2 77 SYLVAN LAKE 8420 .0 1.7 0 1.8 2.4 75 THUMB DIVIDE 7980 .0 .7 0 2.3 1.9 121 TWO OCEAN PLATEAU 9240 3.8 2.8 136 2.0 2.8 71 WHISKEY CREEK 6800 .0 .7 0 1.3 2.0 65 WHITE MILL 8700 1.5 1.7 88 1.7 2.5 68 WOLVERINE 7650 .0 .4 0 1.4 1.7 82 ----- ----- Basin wide percent of average 61 81 WIND RIVER BURROUGHS CREEK 8750 1.9 .8 237 2.3 1.5 153 COLD SPRINGS 9630 1.5 1.0 150 2.4 1.8 133 DEER PARK 9700 1.5 1.9 79 2.7 2.3 117 HOBBS PARK 10100 2.2 2.1 105 2.7 2.0 135 LITTLE WARM 9370 1.5 .9 167 2.1 1.6 131 SOUTH PASS 9040 1.8 1.4 129 3.4 1.9 179 ST. LAWRENCE ALT 8620 1.4 .9 156 2.3 1.6 144 TOGWOTEE PASS 9580 2.3 2.3 100 2.9 2.6 112 TOWNSEND CREEK 8700 2.0 1.1 182 3.0 2.0 150 ----- ----- Basin wide percent of average 130 138 BIGHORN BASIN BALD MTN. 9380 2.4 2.6 92 3.0 2.2 136 BEAR TRAP MEADOW 8200 .7 .5 140 1.9 1.6 119 BLACKWATER 9780 1.8 2.9 62 2.1 2.5 84 BONE SPRINGS DIV 9350 2.2 2.4 92 2.6 2.3 113 EVENING STAR 9200 1.8 2.4 75 2.6 2.5 104 GRAVE SPRINGS 8550 1.0 1.1 91 2.0 2.0 100 KIRWIN 9550 1.8 1.8 100 1.8 1.7 106 MARQUETTE 8760 1.5 1.9 79 2.2 2.2 100 MIDDLE POWDER 7760 .0 1.3 0 2.0 2.4 83 OWL CREEK 8975 2.0 .8 250 2.1 1.1 191 POWDER RIVER PASS 9480 1.3 1.1 118 2.2 1.8 122 SHELL CREEK 9580 2.5 2.6 96 2.8 1.9 147 SYLVAN LAKE 8420 .0 1.7 0 1.8 2.4 75 SYLVAN ROAD 7120 .0 .4 0 1.3 1.9 68 TIMBER CREEK 7950 1.2 1.1 109 2.3 1.5 153 YOUNTS PEAK 8350 1.8 1.3 138 1.7 1.7 100 ----- ----- Basin wide percent of average 85 109 SHOSHONE RIVER BLACKWATER 9780 1.8 2.9 62 2.1 2.5 84 EVENING STAR 9200 1.8 2.4 75 2.6 2.5 104 KIRWIN 9550 1.8 1.8 100 1.8 1.7 106 MARQUETTE 8760 1.5 1.9 79 2.2 2.2 100 SYLVAN LAKE 8420 .0 1.7 0 1.8 2.4 75 SYLVAN ROAD 7120 .0 .4 0 1.3 1.9 68 YOUNTS PEAK 8350 1.8 1.3 138 1.7 1.7 100 ----- ----- Basin wide percent of average 70 91 POWDER-TONGUE BEAR TRAP MEADOW 8200 .7 .5 140 1.9 1.6 119 BIG GOOSE 7990 .8 .8 100 2.1 2.0 105 BONE SPRINGS DIV 9350 2.2 2.4 92 2.6 2.3 113 BURGESS JUNCTION 7880 1.5 1.5 100 2.5 2.1 119 CLOUD PEAK RESERVOIR 9860 2.1 1.5 140 2.5 2.5 100 DOME LAKE 8880 1.4 1.8 78 2.2 2.3 96 GRAVE SPRINGS 8550 1.0 1.1 91 2.0 2.0 100 HANSEN SAWMILL 8360 .0 .8 0 1.7 1.7 100 MIDDLE POWDER 7760 .0 1.3 0 2.0 2.4 83 POWDER RIVER PASS 9480 1.3 1.1 118 2.2 1.8 122 SUCKER CREEK 8880 1.8 1.4 129 2.7 2.3 117 TIE CREEK 6870 .0 .8 0 3.4 2.4 142 ----- ----- Basin wide percent of average 85 109 BELLE FOURCHE BLIND PARK 6890 .0 .4 0 1.3 2.4 54 COLE CANYON 5910 .0 .8 0 2.7 1.7 159 NORTH RAPID CREEK 6130 .0 .4 0 1.8 2.3 78 ----- ----- Basin wide percent of average 0 91 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .6 17 1.1 2.2 50 DIVIDE PEAK 8880 .6 1.6 37 2.4 2.5 96 ELK RIVER 8700 .2 .5 40 1.4 2.0 70 JOE WRIGHT 10120 1.2 2.3 52 2.6 3.2 81 NORTH FRENCH CREEK 10130 1.3 2.9 45 2.0 3.1 65 OLD BATTLE 10000 1.1 2.7 41 2.4 3.3 73 SAGE CREEK BASIN 7850 .0 .9 0 1.0 1.5 67 SOUTH BRUSH CREEK 8440 .1 .6 17 1.2 2.5 48 TOWER 10500 .9 3.1 29 2.3 3.6 64 WEBBER SPRINGS 9250 .9 1.6 56 2.2 2.8 79 WILLOW CREEK PASS 9540 1.3 1.0 130 1.3 1.9 68 ----- ----- Basin wide percent of average 43 70 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.0 2.0 50 1.6 2.2 73 CASPER MTN. 7900 .7 1.6 44 2.4 2.3 104 DEADMAN HILL 10220 2.0 2.0 100 1.6 2.3 70 DEER PARK 9700 1.5 1.9 79 2.7 2.3 117 LAPRELE CREEK 8375 .0 .9 0 .7 1.7 41 RENO HILL 8400 .9 1.6 56 1.8 2.3 78 ROACH 9700 1.1 1.0 110 1.6 2.2 73 SAND LAKE 10050 2.2 3.0 73 2.0 2.8 71 SOUTH PASS 9040 1.8 1.4 129 3.4 1.9 179 WINDY PEAK 7900 .6 .5 120 .7 1.6 44 ----- ----- Basin wide percent of average 74 86 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .5 20 .8 1.8 44 DIVIDE PEAK 8880 .6 1.6 37 2.4 2.5 96 OLD BATTLE 10000 1.1 2.7 41 2.4 3.3 73 SANDSTONE RS 8150 .0 .4 0 .9 2.2 41 WHISKEY PARK 8950 .3 1.5 20 1.8 2.7 67 ----- ----- Basin wide percent of average 31 66 UPPER GREEN RIVER BIG SANDY OPENING 9080 .9 1.1 82 1.4 1.7 82 BLIND BULL SUM 8650 1.5 1.4 107 2.1 2.0 105 EAST RIM DIVIDE 7930 .0 .5 0 2.0 1.3 154 ELKHART PARK G.S. 9400 1.1 .8 138 1.9 1.8 106 GROS VENTRE SUMMIT 8750 1.7 1.3 131 2.2 1.7 129 GUNSIGHT PASS 9820 .6 -M * 1.5 -M * KENDALL R.S. 7740 .2 .6 33 1.5 1.4 107 LOOMIS PARK 8240 .3 .8 37 2.1 1.7 124 NEW FORK LAKE 8340 .5 .5 100 1.5 1.4 107 SNIDER BASIN 8060 .3 .6 50 1.1 1.4 79 SPRING CREEK DIVIDE 9000 .5 1.3 38 1.3 2.3 57 TRIPLE PEAK 8500 1.7 1.0 170 2.1 2.0 105 ----- ----- Basin wide percent of average 88 103 LOWER GREEN RIVER HAMS FORK 7840 .0 .4 0 1.3 1.3 100 HEWINTA 9519 .0 .8 0 1.2 2.2 55 HICKERSON PARK 9145 .0 .4 0 1.2 1.6 75 HOLE-IN-ROCK 9150 .1 .4 25 1.8 1.6 112 INDIAN CREEK 9425 1.3 1.3 100 1.8 2.3 78 KELLEY R.S. 8180 .2 .8 25 1.4 2.0 70 STEEL CREEK PARK 10200 .0 1.5 0 1.6 2.1 76 ----- ----- Basin wide percent of average 29 79 UPPER BEAR RIVER BUG LAKE 7950 .0 1.1 0 1.4 2.2 64 HAYDEN FORK 9212 .0 .8 0 1.3 2.2 59 KELLEY R.S. 8180 .2 .8 25 1.4 2.0 70 LILY LAKE 9156 .1 .9 11 1.7 2.2 77 MONTE CRISTO 8960 .0 1.4 0 1.7 2.6 65 SALT RIVER SUMMIT 7760 .0 .3 0 1.3 1.8 72 TRIAL LAKE 9992 .4 1.8 22 1.4 2.5 56 ----- ----- Basin wide percent of average 10 66 ----------------------------------------------------------------------------- -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.