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: NOVEMBER 9 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .7 1.2 58 3.1 2.8 111 COTTONWOOD CREEK 7670 .2 1.6 12 4.3 4.1 105 GRAND TARGHEE 9260 6.4 -M * 5.7 -M * GRANITE CREEK 6770 .0 1.0 0 2.6 2.5 104 GRASSY LAKE 7265 1.7 2.5 68 4.3 4.6 93 GROS VENTRE SUMMIT 8750 2.1 1.9 111 2.2 2.4 92 GUNSIGHT PASS 9820 1.7 -M * 3.0 -M * LEWIS LAKE DIVIDE 7850 -M 2.4 * -M 4.4 * PHILLIPS BENCH 8200 1.3 2.4 54 3.4 3.3 103 SALT RIVER SUMMIT 7760 .0 .7 0 2.4 2.6 92 SNAKE RIVER STATION 6920 .4 1.1 36 3.7 3.1 119 SPRING CREEK DIVIDE 9000 3.2 2.5 128 4.0 3.6 111 THUMB DIVIDE 7980 1.1 1.4 79 4.2 2.7 156 TOGWOTEE PASS 9580 4.1 3.6 114 4.3 3.8 113 TWO OCEAN PLATEAU 9240 5.4 4.2 129 4.2 4.1 102 WILLOW CREEK 8380 1.7 3.0 57 5.6 4.9 114 ----- ----- Basin wide percent of average 81 109 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 4.2 3.8 111 3.5 2.8 125 BLACK BEAR 8170 4.8 4.0 120 6.1 5.0 122 CANYON 7870 1.6 1.2 133 3.0 2.5 120 FISHER CREEK 9100 5.6 4.1 137 5.8 4.6 126 MADISON PLATEAU 7750 2.3 2.4 96 5.2 3.4 153 NORTHEAST ENTRANCE 7350 .2 .7 29 3.0 2.0 150 PARKER PEAK 9400 4.9 3.6 136 3.8 3.0 127 SYLVAN LAKE 8420 1.5 2.9 52 3.4 3.5 97 THUMB DIVIDE 7980 1.1 1.4 79 4.2 2.7 156 TWO OCEAN PLATEAU 9240 5.4 4.2 129 4.2 4.1 102 WHISKEY CREEK 6800 .1 1.3 8 3.0 3.0 100 WHITE MILL 8700 4.5 3.0 150 4.2 3.7 114 WOLVERINE 7650 .4 1.0 40 2.1 2.4 88 ----- ----- Basin wide percent of average 109 121 WIND RIVER BURROUGHS CREEK 8750 2.9 1.6 181 2.9 2.3 126 COLD SPRINGS 9630 2.3 1.6 144 3.0 2.5 120 DEER PARK 9700 4.4 3.3 133 5.6 3.6 156 HOBBS PARK 10100 4.9 3.0 163 4.7 2.8 168 LITTLE WARM 9370 1.6 1.6 100 2.4 2.4 100 SOUTH PASS 9040 3.8 2.4 158 4.7 3.0 157 ST. LAWRENCE ALT 8620 1.8 1.3 138 3.7 2.3 161 TOGWOTEE PASS 9580 4.1 3.6 114 4.3 3.8 113 TOWNSEND CREEK 8700 3.0 1.6 188 4.8 2.8 171 ----- ----- Basin wide percent of average 144 142 BIGHORN BASIN BALD MTN. 9380 4.0 3.6 111 3.5 3.1 113 BEAR TRAP MEADOW 8200 1.2 .8 150 2.2 2.2 100 BLACKWATER 9780 5.4 4.1 132 4.6 3.6 128 BONE SPRINGS DIV 9350 3.3 3.4 97 3.2 3.2 100 EVENING STAR 9200 4.9 4.0 123 6.0 3.9 154 GRAVE SPRINGS 8550 2.4 1.6 150 3.5 2.5 140 KIRWIN 9550 3.0 2.6 115 2.5 2.4 104 MARQUETTE 8760 2.9 2.5 116 3.1 2.9 107 MIDDLE POWDER 7760 2.4 1.9 126 2.9 3.3 88 OWL CREEK 8975 2.4 1.2 200 2.0 1.5 133 POWDER RIVER PASS 9480 2.0 1.8 111 2.3 2.5 92 SHELL CREEK 9580 3.6 3.4 106 3.2 2.6 123 SYLVAN LAKE 8420 1.5 2.9 52 3.4 3.5 97 SYLVAN ROAD 7120 .6 1.1 55 3.0 3.0 100 TIMBER CREEK 7950 1.0 1.5 67 2.4 2.0 120 YOUNTS PEAK 8350 2.7 2.3 117 2.5 2.6 96 ----- ----- Basin wide percent of average 112 112 SHOSHONE RIVER BLACKWATER 9780 5.4 4.1 132 4.6 3.6 128 EVENING STAR 9200 4.9 4.0 123 6.0 3.9 154 KIRWIN 9550 3.0 2.6 115 2.5 2.4 104 MARQUETTE 8760 2.9 2.5 116 3.1 2.9 107 SYLVAN LAKE 8420 1.5 2.9 52 3.4 3.5 97 SYLVAN ROAD 7120 .6 1.1 55 3.0 3.0 100 YOUNTS PEAK 8350 2.7 2.3 117 2.5 2.6 96 ----- ----- Basin wide percent of average 108 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.2 .8 150 2.2 2.2 100 BIG GOOSE 7990 1.6 1.1 145 3.3 2.4 138 BONE SPRINGS DIV 9350 3.3 3.4 97 3.2 3.2 100 BURGESS JUNCTION 7880 2.9 2.2 132 3.8 2.8 136 CLOUD PEAK RESERVOIR 9860 3.5 2.3 152 3.5 3.3 106 DOME LAKE 8880 2.2 2.7 81 3.3 3.2 103 GRAVE SPRINGS 8550 2.4 1.6 150 3.5 2.5 140 HANSEN SAWMILL 8360 1.1 1.3 85 2.1 2.3 91 MIDDLE POWDER 7760 2.4 1.9 126 2.9 3.3 88 POWDER RIVER PASS 9480 2.0 1.8 111 2.3 2.5 92 SUCKER CREEK 8880 3.5 1.9 184 3.9 3.0 130 TIE CREEK 6870 .4 1.2 33 4.0 2.9 138 ----- ----- Basin wide percent of average 119 113 BELLE FOURCHE BLIND PARK 6890 .8 1.3 62 4.1 3.2 128 COLE CANYON 5910 .0 1.2 0 3.9 2.2 177 NORTH RAPID CREEK 6130 .8 .7 114 3.9 2.9 134 ----- ----- Basin wide percent of average 50 143 UPPER N. PLATTE RIVER COLUMBINE 9160 .8 1.7 47 4.0 3.2 125 DIVIDE PEAK 8880 2.4 2.5 96 5.3 3.5 151 ELK RIVER 8700 .0 1.1 0 3.2 2.9 110 JOE WRIGHT 10120 3.0 3.6 83 4.8 4.5 107 NORTH FRENCH CREEK 10130 7.0 4.2 167 7.4 4.4 168 OLD BATTLE 10000 7.3 4.4 166 7.7 4.8 160 SAGE CREEK BASIN 7850 1.1 1.5 73 2.8 2.0 140 SOUTH BRUSH CREEK 8440 .9 1.2 75 4.2 3.3 127 TOWER 10500 7.2 5.6 129 7.4 5.5 135 WEBBER SPRINGS 9250 3.2 2.9 110 6.2 4.2 148 WILLOW CREEK PASS 9540 .5 1.8 28 3.1 2.6 119 ----- ----- Basin wide percent of average 110 137 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.7 3.0 157 5.7 3.4 168 CASPER MTN. 7900 3.0 2.5 120 3.9 3.3 118 DEADMAN HILL 10220 1.2 3.0 40 4.7 3.2 147 DEER PARK 9700 4.4 3.3 133 5.6 3.6 156 LAPRELE CREEK 8375 1.3 1.5 87 3.5 2.5 140 RENO HILL 8400 3.5 2.3 152 4.7 3.3 142 ROACH 9700 3.5 1.9 184 5.1 3.0 170 SAND LAKE 10050 7.6 4.6 165 7.8 4.0 195 SOUTH PASS 9040 3.8 2.4 158 4.7 3.0 157 WINDY PEAK 7900 1.3 1.0 130 3.7 2.2 168 ----- ----- Basin wide percent of average 135 157 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .8 0 2.1 2.5 84 DIVIDE PEAK 8880 2.4 2.5 96 5.3 3.5 151 OLD BATTLE 10000 7.3 4.4 166 7.7 4.8 160 SANDSTONE RS 8150 -M .9 * 2.5 3.1 81 WHISKEY PARK 8950 2.4 2.7 89 5.9 3.9 151 ----- ----- Basin wide percent of average 116 132 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.9 1.8 161 3.1 2.4 129 BLIND BULL SUM 8650 2.6 2.7 96 2.4 3.1 77 EAST RIM DIVIDE 7930 .1 1.1 9 1.9 1.9 100 ELKHART PARK G.S. 9400 2.2 1.4 157 2.8 2.6 108 GROS VENTRE SUMMIT 8750 2.1 1.9 111 2.2 2.4 92 GUNSIGHT PASS 9820 1.7 -M * 3.0 -M * KENDALL R.S. 7740 .2 1.2 17 2.1 2.1 100 LOOMIS PARK 8240 .4 1.6 25 2.4 2.5 96 NEW FORK LAKE 8340 .2 1.0 20 -M 2.1 * SNIDER BASIN 8060 1.0 1.3 77 2.6 2.2 118 SPRING CREEK DIVIDE 9000 3.2 2.5 128 4.0 3.6 111 TRIPLE PEAK 8500 3.0 2.2 136 4.4 3.1 142 ----- ----- Basin wide percent of average 96 108 LOWER GREEN RIVER HAMS FORK 7840 .1 .8 12 3.1 1.9 163 HEWINTA 9519 -M 1.2 * 2.3 3.0 77 HICKERSON PARK 9145 .4 .7 57 3.1 2.1 148 HOLE-IN-ROCK 9150 .8 .7 114 3.6 2.0 180 INDIAN CREEK 9425 4.3 2.5 172 4.6 3.5 131 KELLEY R.S. 8180 1.1 1.6 69 3.5 2.9 121 STEEL CREEK PARK 10200 1.4 2.2 64 3.0 3.1 97 ----- ----- Basin wide percent of average 95 125 UPPER BEAR RIVER BUG LAKE 7950 .0 1.8 0 3.3 3.1 106 HAYDEN FORK 9212 .1 1.3 8 2.9 3.3 88 KELLEY R.S. 8180 1.1 1.6 69 3.5 2.9 121 LILY LAKE 9156 .9 1.4 64 2.3 3.2 72 MONTE CRISTO 8960 1.5 2.3 65 3.8 3.7 103 SALT RIVER SUMMIT 7760 .0 .7 0 2.4 2.6 92 TRIAL LAKE 9992 2.1 2.7 78 3.0 3.7 81 ----- ----- Basin wide percent of average 48 94 ----------------------------------------------------------------------------- -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.