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: NOVEMBER 17 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 2.7 2.2 123 5.4 4.0 135 COTTONWOOD CREEK 7670 5.9 2.6 227 9.3 5.5 169 GRAND TARGHEE 9260 9.5 -M * 8.6 -M * GRANITE CREEK 6770 2.2 1.8 122* 4.8 3.5 137 GRASSY LAKE 7265 3.9 4.3 91 7.1 6.4 111 GROS VENTRE SUMMIT 8750 2.9 2.6 112 3.2 3.1 103 GUNSIGHT PASS 9820 3.4 -M * 4.0 -M * LEWIS LAKE DIVIDE 7850 4.8 4.3 112 6.9 6.3 110 PHILLIPS BENCH 8200 5.8 3.8 153 7.0 4.8 146 SALT RIVER SUMMIT 7760 1.8 1.3 138* 4.8 3.4 141 SNAKE RIVER STATION 6920 1.6 2.1 76 5.4 4.2 129 SPRING CREEK DIVIDE 9000 5.5 4.0 138 7.0 4.9 143 THUMB DIVIDE 7980 2.2 2.3 96 3.4 3.7 92 TOGWOTEE PASS 9580 6.4 4.9 131 7.3 5.1 143 TWO OCEAN PLATEAU 9240 6.3 5.8 109 5.4 5.6 96 WILLOW CREEK 8380 5.5 4.7 117 10.1 6.5 155 ----- ----- Basin wide percent of average 123 130 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.8 4.8 79 4.0 3.9 103 BLACK BEAR 8170 5.0 5.8 86 7.1 7.0 101 CANYON 7870 1.3 1.8 72 2.7 3.4 79 FISHER CREEK 9100 4.5 5.5 82 5.8 6.5 89 MADISON PLATEAU 7750 2.4 3.5 69 4.2 4.7 89 NORTHEAST ENTRANCE 7350 1.0 1.2 83 3.3 2.8 118 PARKER PEAK 9400 4.1 4.6 89 5.1 3.9 131 SYLVAN LAKE 8420 3.1 4.0 78 5.2 4.8 108 THUMB DIVIDE 7980 2.2 2.3 96 3.4 3.7 92 TWO OCEAN PLATEAU 9240 6.3 5.8 109 5.4 5.6 96 WHISKEY CREEK 6800 .6 2.1 29 3.3 4.0 83 WHITE MILL 8700 3.4 4.1 83 4.6 5.1 90 WOLVERINE 7650 1.0 1.5 67 2.6 3.1 84 ----- ----- Basin wide percent of average 82 97 WIND RIVER BURROUGHS CREEK 8750 2.5 2.3 109 2.8 3.3 85 CASTLE CREEK 8400 1.1 -M * 1.8 -M * COLD SPRINGS 9630 1.0 2.2 45 1.4 3.2 44 DEER PARK 9700 2.8 3.7 76 3.4 5.1 67 HOBBS PARK 10100 1.9 3.9 49 2.2 3.5 63 LITTLE WARM 9370 2.2 2.3 96 1.9 3.3 58 SOUTH PASS 9040 1.6 3.3 48 2.3 4.1 56 ST. LAWRENCE ALT 8620 .6 1.8 33 1.2 2.8 43 TOGWOTEE PASS 9580 6.4 4.9 131 7.3 5.1 143 TOWNSEND CREEK 8700 .8 2.1 38 2.3 3.4 68 ----- ----- Basin wide percent of average 75 73 BIGHORN BASIN BALD MTN. 9380 5.0 4.5 111 4.5 4.0 113 BEAR TRAP MEADOW 8200 .8 1.1 73 2.0 2.7 74 BLACKWATER 9780 4.5 5.3 85 4.4 4.9 90 BONE SPRINGS DIV 9350 3.4 4.2 81 2.7 3.9 69 EVENING STAR 9200 4.4 5.4 81 5.6 5.5 102 GRAVE SPRINGS 8550 1.9 2.0 95 2.5 2.9 86 KIRWIN 9550 2.3 3.1 74 2.4 3.1 77 MARQUETTE 8760 .4 2.9 14 1.1 3.4 32 MIDDLE POWDER 7760 2.9 2.5 116 2.1 4.0 53 OWL CREEK 8975 .6 1.5 40 .9 1.8 50 POWDER RIVER PASS 9480 3.0 2.4 125 3.7 3.1 119 SHELL CREEK 9580 3.5 4.0 88 3.1 3.4 91 SYLVAN LAKE 8420 3.1 4.0 78 5.2 4.8 108 SYLVAN ROAD 7120 1.2 1.8 67 3.4 4.4 77 TIMBER CREEK 7950 .6 1.9 32 1.0 2.5 40 YOUNTS PEAK 8350 3.3 3.0 110 3.1 3.5 89 ----- ----- Basin wide percent of average 82 82 SHOSHONE RIVER BLACKWATER 9780 4.5 5.3 85 4.4 4.9 90 EVENING STAR 9200 4.4 5.4 81 5.6 5.5 102 KIRWIN 9550 2.3 3.1 74 2.4 3.1 77 MARQUETTE 8760 .4 2.9 14 1.1 3.4 32 SYLVAN LAKE 8420 3.1 4.0 78 5.2 4.8 108 SYLVAN ROAD 7120 1.2 1.8 67 3.4 4.4 77 YOUNTS PEAK 8350 3.3 3.0 110 3.1 3.5 89 ----- ----- Basin wide percent of average 75 85 POWDER-TONGUE BEAR TRAP MEADOW 8200 .8 1.1 73 2.0 2.7 74 BIG GOOSE 7990 .7 1.6 44 2.3 2.7 85 BONE SPRINGS DIV 9350 3.4 4.2 81 2.7 3.9 69 BURGESS JUNCTION 7880 1.3 2.7 48 2.8 3.4 82 CLOUD PEAK RESERVOIR 9860 2.6 2.8 93 3.9 4.0 98 DOME LAKE 8880 .8 3.3 24 2.6 3.9 67 GRAVE SPRINGS 8550 1.9 2.0 95 2.5 2.9 86 HANSEN SAWMILL 8360 1.0 1.4 71 1.5 2.7 56 LITTLE GOOSE 8870 .8 -M * 3.9 -M * MIDDLE POWDER 7760 2.9 2.5 116 2.1 4.0 53 POWDER RIVER PASS 9480 3.0 2.4 125 3.7 3.1 119 SOLDIER PARK 8720 .8 -M * 2.0 -M * SUCKER CREEK 8880 2.2 2.4 92 2.5 3.6 69 TIE CREEK 6870 .8 1.1 73 2.2 3.2 69 ----- ----- Basin wide percent of average 78 77 BELLE FOURCHE BLIND PARK 6890 1.1 1.5 73 5.8 3.7 157 COLE CANYON 5910 1.3 1.6 81 3.0 2.6 115 NORTH RAPID CREEK 6130 1.0 1.1 91 4.6 3.3 139 ----- ----- Basin wide percent of average 81 140 UPPER N. PLATTE RIVER COLUMBINE 9160 6.2 2.9 214 9.2 4.4 209 DIVIDE PEAK 8880 2.7 3.4 79 5.6 4.5 124 ELK RIVER 8700 3.0 1.7 176* 6.4 3.7 173 JOE WRIGHT 10120 7.6 4.7 162 11.7 5.8 202 NORTH FRENCH CREEK 10130 9.2 5.6 164 10.1 5.6 180 OLD BATTLE 10000 7.5 6.1 123 9.1 6.4 142 SAGE CREEK BASIN 7850 1.2 2.0 60 4.3 2.6 165 SOUTH BRUSH CREEK 8440 3.4 1.8 189 6.2 4.1 151 TOWER 10500 13.9 8.3 167 14.8 7.4 200 WEBBER SPRINGS 9250 4.2 4.3 98 7.9 5.5 144 WILLOW CREEK PASS 9540 4.2 2.5 168 5.6 3.3 170 ----- ----- Basin wide percent of average 146 171 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 5.0 4.1 122 6.8 4.4 155 CASPER MTN. 7900 2.1 3.3 64 4.8 4.1 117 DEADMAN HILL 10220 3.9 3.8 103 7.0 4.0 175 DEER PARK 9700 2.8 3.7 76 3.4 5.1 67 LAPRELE CREEK 8375 1.5 2.2 68 3.1 3.3 94 RENO HILL 8400 2.7 3.1 87 4.6 4.0 115 ROACH 9700 4.0 2.8 143 6.3 3.9 162 SAND LAKE 10050 8.5 6.4 133 8.3 5.2 160 SOUTH PASS 9040 1.6 3.3 48 2.3 4.1 56 WINDY PEAK 7900 1.4 1.5 93 3.6 2.8 129 ----- ----- Basin wide percent of average 98 123 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.0 1.2 83 4.3 3.2 134 DIVIDE PEAK 8880 2.7 3.4 79 5.6 4.5 124 OLD BATTLE 10000 7.5 6.1 123 9.1 6.4 142 SANDSTONE RS 8150 .7 1.4 50* 5.9 4.1 144 WHISKEY PARK 8950 5.2 4.0 130 9.0 5.3 170 ----- ----- Basin wide percent of average 106 144 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.2 2.6 85 3.3 3.1 106 BLIND BULL SUM 8650 5.4 4.3 126 3.7 4.2 88 EAST RIM DIVIDE 7930 1.5 1.9 79 2.3 2.5 92 ELKHART PARK G.S. 9400 1.8 2.1 86 2.5 3.3 76 GROS VENTRE SUMMIT 8750 2.9 2.6 112 3.2 3.1 103 GUNSIGHT PASS 9820 3.4 -M * 4.0 -M * KENDALL R.S. 7740 1.2 1.9 63 3.2 2.9 110 LOOMIS PARK 8240 2.7 2.6 104 3.8 3.4 112 NEW FORK LAKE 8340 2.1 1.6 131 2.3 2.8 82 POCKET CREEK 9360 2.4 -M * 3.2 -M * SNIDER BASIN 8060 3.2 2.1 152 4.5 3.1 145 SPRING CREEK DIVIDE 9000 5.5 4.0 138 7.0 4.9 143 TRIPLE PEAK 8500 5.5 3.6 153 7.4 4.4 168 ----- ----- Basin wide percent of average 116 115 LOWER GREEN RIVER HAMS FORK 7840 1.5 1.3 115 3.3 2.5 132 HEWINTA 9519 .5 1.5 33 4.5 3.8 118 HICKERSON PARK 9145 .3 1.0 30 2.1 2.6 81 HOLE-IN-ROCK 9150 .8 1.0 80 2.6 2.4 108 INDIAN CREEK 9425 5.4 4.0 135 6.1 4.8 127 KELLEY R.S. 8180 3.6 2.5 144 5.8 3.9 149 STEEL CREEK PARK 10200 2.6 2.8 93 5.3 3.9 136 ----- ----- Basin wide percent of average 104 124 UPPER BEAR RIVER BUG LAKE 7950 1.7 2.6 65 5.5 4.0 138 HAYDEN FORK 9212 1.5 1.9 79 7.1 4.3 165 KELLEY R.S. 8180 3.6 2.5 144 5.8 3.9 149 LILY LAKE 9156 2.6 1.9 137 5.8 4.2 138 MONTE CRISTO 8960 3.7 3.3 112 6.3 5.0 126 SALT RIVER SUMMIT 7760 1.8 1.3 138* 4.8 3.4 141 TRIAL LAKE 9992 5.8 3.8 153 7.9 4.8 165 ----- ----- Basin wide percent of average 120 146 ----------------------------------------------------------------------------- -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.