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: JANUARY 1 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.2 8.2 124 13.3 10.4 128 COTTONWOOD CREEK 7670 14.3 9.7 147 18.8 13.5 139 GRAND TARGHEE 9260 24.2 -M * 17.6 -M * GRANITE CREEK 6770 10.8 7.6 142 13.1 9.5 138 GRASSY LAKE 7265 16.4 14.7 112 19.4 17.3 112 GROS VENTRE SUMMIT 8750 8.7 6.9 126 8.4 6.4 131 GUNSIGHT PASS 9820 9.1 -M * 9.4 -M * LEWIS LAKE DIVIDE 7850 18.7 14.8 126 19.6 17.5 112 PHILLIPS BENCH 8200 16.5 12.6 131 17.9 13.5 133 SALT RIVER SUMMIT 7760 8.1 5.4 150 11.8 9.0 131 SNAKE RIVER STATION 6920 7.8 7.9 99 14.1 11.0 128 SPRING CREEK DIVIDE 9000 16.2 12.5 130 16.8 13.0 129 THUMB DIVIDE 7980 11.6 7.6 153 12.1 9.1 133 TOGWOTEE PASS 9580 14.8 11.7 126 16.0 12.0 133 TWO OCEAN PLATEAU 9240 18.9 13.5 140 14.9 13.5 110 WILLOW CREEK 8380 16.6 14.3 116 21.5 15.5 139 ----- ----- Basin wide percent of average 129 127 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 12.2 11.5 106 11.8 10.0 118 BLACK BEAR 8170 22.6 17.2 131 23.3 17.6 132 CANYON 7870 8.6 6.1 141 9.7 7.8 124 FISHER CREEK 9100 18.5 16.3 113 18.2 17.1 106 MADISON PLATEAU 7750 14.6 11.2 130 16.4 12.4 132 NORTHEAST ENTRANCE 7350 6.0 5.0 120 7.8 6.4 122 PARKER PEAK 9400 13.7 10.6 129 13.9 8.2 170 SYLVAN LAKE 8420 11.7 10.5 111 14.7 11.0 134 THUMB DIVIDE 7980 11.6 7.6 153 12.1 9.1 133 TWO OCEAN PLATEAU 9240 18.9 13.5 140 14.9 13.5 110 WHISKEY CREEK 6800 10.1 7.5 135 12.6 9.9 127 WHITE MILL 8700 13.1 11.1 118 13.8 12.8 108 WOLVERINE 7650 7.6 5.8 131 7.1 7.0 101 ----- ----- Basin wide percent of average 126 123 WIND RIVER BURROUGHS CREEK 8750 7.7 6.7 115 8.0 8.0 100 CASTLE CREEK 8400 3.5 -M * 3.9 -M * COLD SPRINGS 9630 4.7 4.6 102 4.8 5.7 84 DEER PARK 9700 12.6 6.7 188 13.4 10.9 123 HOBBS PARK 10100 8.4 7.6 111 7.3 6.4 114 LITTLE WARM 9370 6.5 5.3 123 6.4 6.7 96 SOUTH PASS 9040 9.9 8.2 121 8.9 9.2 97 ST. LAWRENCE ALT 8620 2.9 3.8 76 4.1 4.6 89 TOGWOTEE PASS 9580 14.8 11.7 126 16.0 12.0 133 TOWNSEND CREEK 8700 4.4 4.4 100 6.5 6.0 108 ----- ----- Basin wide percent of average 122 108 BIGHORN BASIN BALD MTN. 9380 10.1 9.7 104 9.0 8.5 106 BEAR TRAP MEADOW 8200 3.3 2.6 127 4.1 4.5 91 BLACKWATER 9780 13.9 12.0 116 12.9 10.8 119 BONE SPRINGS DIV 9350 7.9 7.8 101 7.1 7.3 97 EVENING STAR 9200 15.8 13.7 115 17.0 13.0 131 GRAVE SPRINGS 8550 3.5 4.0 88 4.2 4.9 86 KIRWIN 9550 6.7 5.9 114 7.0 5.9 119 MARQUETTE 8760 1.6 5.0 32 3.4 5.3 64 MIDDLE POWDER 7760 5.0 5.5 91 3.2 6.8 47 OWL CREEK 8975 2.3 2.7 85 2.5 2.9 86 POWDER RIVER PASS 9480 6.4 5.3 121 7.0 6.0 117 SHELL CREEK 9580 7.2 7.3 99 6.3 6.7 94 SYLVAN LAKE 8420 11.7 10.5 111 14.7 11.0 134 SYLVAN ROAD 7120 8.0 6.2 129 10.9 10.1 108 TIMBER CREEK 7950 2.0 3.0 67 2.5 3.7 68 YOUNTS PEAK 8350 9.2 7.9 116 8.2 8.2 100 ----- ----- Basin wide percent of average 105 104 SHOSHONE RIVER BLACKWATER 9780 13.9 12.0 116 12.9 10.8 119 EVENING STAR 9200 15.8 13.7 115 17.0 13.0 131 KIRWIN 9550 6.7 5.9 114 7.0 5.9 119 MARQUETTE 8760 1.6 5.0 32 3.4 5.3 64 SYLVAN LAKE 8420 11.7 10.5 111 14.7 11.0 134 SYLVAN ROAD 7120 8.0 6.2 129 10.9 10.1 108 YOUNTS PEAK 8350 9.2 7.9 116 8.2 8.2 100 ----- ----- Basin wide percent of average 109 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.3 2.6 127 4.1 4.5 91 BIG GOOSE 7990 2.7 4.4 61 4.3 4.5 96 BONE SPRINGS DIV 9350 7.9 7.8 101 7.1 7.3 97 BURGESS JUNCTION 7880 3.6 5.5 65 4.8 6.1 79 CLOUD PEAK RESERVOIR 9860 6.8 5.7 119 6.6 6.4 103 DOME LAKE 8880 3.6 6.1 59 5.8 6.9 84 GRAVE SPRINGS 8550 3.5 4.0 88 4.2 4.9 86 HANSEN SAWMILL 8360 2.6 3.3 79 3.4 4.3 79 LITTLE GOOSE 8870 3.4 -M * 6.9 -M * MIDDLE POWDER 7760 5.0 5.5 91 3.2 6.8 47 POWDER RIVER PASS 9480 6.4 5.3 121 7.0 6.0 117 SOLDIER PARK 8720 2.5 -M * 4.0 -M * SUCKER CREEK 8880 5.0 5.2 96 5.8 6.7 87 TIE CREEK 6870 2.0 2.5 80 3.7 5.1 73 ----- ----- Basin wide percent of average 91 86 BELLE FOURCHE BLIND PARK 6890 2.7 3.5 77 8.2 6.2 132 COLE CANYON 5910 2.7 3.3 82 5.5 3.9 141 NORTH RAPID CREEK 6130 3.1 3.3 94 6.8 5.3 128 ----- ----- Basin wide percent of average 84 133 UPPER N. PLATTE RIVER COLUMBINE 9160 15.1 10.0 151 17.4 11.5 151 DIVIDE PEAK 8880 11.9 9.2 129 15.1 10.0 151 ELK RIVER 8700 11.8 7.2 164 14.3 8.9 161 JOE WRIGHT 10120 14.1 9.7 145 19.2 11.9 161 NORTH FRENCH CREEK 10130 20.8 13.4 155 20.4 12.0 170 OLD BATTLE 10000 23.3 14.6 160 23.9 16.0 149 SAGE CREEK BASIN 7850 10.1 5.3 191 11.0 5.8 190 SOUTH BRUSH CREEK 8440 9.2 5.1 180 12.1 7.8 155 TOWER 10500 27.6 20.6 134 27.1 17.9 151 WEBBER SPRINGS 9250 16.1 11.5 140 20.4 13.0 157 WILLOW CREEK PASS 9540 10.7 5.6 191 10.8 6.4 169 ----- ----- Basin wide percent of average 152 158 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.5 10.8 134 15.9 10.1 157 CASPER MTN. 7900 5.9 6.9 86 8.7 7.2 121 DEADMAN HILL 10220 6.0 7.6 79 12.9 7.9 163 DEER PARK 9700 12.6 6.7 188 13.4 10.9 123 LAPRELE CREEK 8375 5.4 5.3 102 6.8 6.2 110 RENO HILL 8400 7.2 6.6 109 8.8 7.2 122 ROACH 9700 11.2 7.3 153 13.7 8.5 161 SAND LAKE 10050 18.5 14.9 124 17.7 11.6 153 SOUTH PASS 9040 9.9 8.2 121 8.9 9.2 97 WINDY PEAK 7900 4.3 3.5 123 7.0 5.5 127 ----- ----- Basin wide percent of average 123 135 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.3 4.1 154 8.6 7.1 121 DIVIDE PEAK 8880 11.9 9.2 129 15.1 10.0 151 OLD BATTLE 10000 23.3 14.6 160 23.9 16.0 149 SANDSTONE RS 8150 7.3 5.3 138 14.5 8.9 163 WHISKEY PARK 8950 -M 11.1 * 20.9 13.2 158 ----- ----- Basin wide percent of average 147 150 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.7 6.9 112 8.5 6.6 129 BLIND BULL SUM 8650 14.3 13.2 108 10.9 11.1 98 EAST RIM DIVIDE 7930 6.6 5.9 112 6.8 5.8 117 ELKHART PARK G.S. 9400 6.4 6.3 102 7.1 6.7 106 GROS VENTRE SUMMIT 8750 8.7 6.9 126 8.4 6.4 131 GUNSIGHT PASS 9820 9.1 -M * 9.4 -M * KENDALL R.S. 7740 6.4 6.7 96 8.4 6.9 122 LOOMIS PARK 8240 9.5 8.0 119 10.4 8.3 125 NEW FORK LAKE 8340 6.1 5.4 113 6.0 5.9 102 POCKET CREEK 9360 6.4 -M * 8.0 -M * SNIDER BASIN 8060 10.1 6.9 146 10.5 7.9 133 SPRING CREEK DIVIDE 9000 16.2 12.5 130 16.8 13.0 129 TRIPLE PEAK 8500 14.6 11.9 123 16.3 11.2 146 ----- ----- Basin wide percent of average 118 123 LOWER GREEN RIVER HAMS FORK 7840 7.4 5.5 135 8.6 5.8 148 HEWINTA 9519 5.3 4.1 129 9.5 7.0 136 HICKERSON PARK 9145 2.5 2.9 86 4.4 4.2 105 HOLE-IN-ROCK 9150 2.8 2.7 104 5.4 3.9 138 INDIAN CREEK 9425 16.6 12.5 133 15.7 12.2 129 KELLEY R.S. 8180 11.0 7.6 145 13.3 10.1 132 STEEL CREEK PARK 10200 8.3 6.7 124 11.6 7.6 153 ----- ----- Basin wide percent of average 128 135 UPPER BEAR RIVER BUG LAKE 7950 15.3 8.3 184 16.8 9.2 183 HAYDEN FORK 9212 10.9 6.3 173 17.0 10.0 170 KELLEY R.S. 8180 11.0 7.6 145 13.3 10.1 132 LILY LAKE 9156 9.8 5.5 178 12.6 8.6 147 MONTE CRISTO 8960 18.2 11.0 165 18.8 12.1 155 SALT RIVER SUMMIT 7760 8.1 5.4 150 11.8 9.0 131 TRIAL LAKE 9992 21.1 10.5 201 19.3 11.2 172 ----- ----- Basin wide percent of average 173 156 ----------------------------------------------------------------------------- -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.