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 TUESDAY: JANUARY 4 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.3 8.7 118 13.5 10.9 124 COTTONWOOD CREEK 7670 14.4 10.2 141 19.0 14.1 135 GRAND TARGHEE 9260 24.8 -M * 18.1 -M * GRANITE CREEK 6770 10.9 8.1 135 13.2 10.0 132 GRASSY LAKE 7265 16.8 15.5 108 19.9 18.2 109 GROS VENTRE SUMMIT 8750 8.7 7.2 121 8.5 6.6 129 GUNSIGHT PASS 9820 9.3 -M * 9.6 -M * LEWIS LAKE DIVIDE 7850 19.0 15.5 123 20.0 18.3 109 PHILLIPS BENCH 8200 16.7 13.2 127 18.2 14.1 129 SALT RIVER SUMMIT 7760 8.2 5.7 144 12.1 9.4 129 SNAKE RIVER STATION 6920 -M 8.3 * 14.3 11.5 124 SPRING CREEK DIVIDE 9000 16.4 13.0 126 17.0 13.7 124 THUMB DIVIDE 7980 11.7 8.0 146 12.2 9.5 128 TOGWOTEE PASS 9580 15.1 12.2 124 16.3 12.5 130 TWO OCEAN PLATEAU 9240 19.1 14.0 136 15.2 14.0 109 WILLOW CREEK 8380 16.6 14.9 111 21.8 16.2 135 ----- ----- Basin wide percent of average 126 124 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 12.4 11.9 104 12.2 10.4 117 BLACK BEAR 8170 22.9 18.1 127 23.6 18.4 128 CANYON 7870 8.6 6.4 134 10.0 8.1 123 FISHER CREEK 9100 18.9 17.0 111 18.7 17.9 104 MADISON PLATEAU 7750 15.0 11.7 128 16.7 12.9 129 NORTHEAST ENTRANCE 7350 6.0 5.2 115 7.9 6.7 118 PARKER PEAK 9400 13.9 11.0 126 14.2 8.5 167 SYLVAN LAKE 8420 12.0 11.0 109 15.0 11.4 132 THUMB DIVIDE 7980 11.7 8.0 146 12.2 9.5 128 TWO OCEAN PLATEAU 9240 19.1 14.0 136 15.2 14.0 109 WHISKEY CREEK 6800 10.3 7.9 130 12.9 10.3 125 WHITE MILL 8700 13.1 11.6 113 14.1 13.4 105 WOLVERINE 7650 7.6 6.0 127 7.7 7.2 107 ----- ----- Basin wide percent of average 123 121 WIND RIVER BURROUGHS CREEK 8750 7.9 7.0 113 8.3 8.4 99 CASTLE CREEK 8400 3.6 -M * 4.1 -M * COLD SPRINGS 9630 4.9 4.7 104 5.0 5.8 86 DEER PARK 9700 12.7 7.1 179 13.6 11.3 120 HOBBS PARK 10100 8.5 7.8 109 7.6 6.6 115 LITTLE WARM 9370 6.6 5.5 120 6.7 7.0 96 SOUTH PASS 9040 10.2 8.4 121 9.3 9.5 98 ST. LAWRENCE ALT 8620 3.1 3.9 79 4.1 4.7 87 TOGWOTEE PASS 9580 15.1 12.2 124 16.3 12.5 130 TOWNSEND CREEK 8700 4.8 4.4 109 6.7 6.1 110 ----- ----- Basin wide percent of average 121 108 BIGHORN BASIN BALD MTN. 9380 10.5 10.1 104 9.5 8.8 108 BEAR TRAP MEADOW 8200 3.5 2.7 130 4.5 4.6 98 BLACKWATER 9780 14.2 12.4 115 13.4 11.1 121 BONE SPRINGS DIV 9350 8.1 8.1 100 7.4 7.5 99 EVENING STAR 9200 16.0 14.3 112 17.3 13.5 128 GRAVE SPRINGS 8550 3.7 4.3 86 4.3 5.0 86 KIRWIN 9550 6.8 6.1 111 7.3 6.1 120 MARQUETTE 8760 1.7 5.0 34 3.6 5.4 67 MIDDLE POWDER 7760 5.1 5.7 89 3.5 7.0 50 OWL CREEK 8975 2.5 2.7 93 2.8 3.0 93 POWDER RIVER PASS 9480 6.5 5.4 120 7.2 6.2 116 SHELL CREEK 9580 7.4 7.6 97 6.5 6.9 94 SYLVAN LAKE 8420 12.0 11.0 109 15.0 11.4 132 SYLVAN ROAD 7120 8.1 6.5 125 11.1 10.4 107 TIMBER CREEK 7950 2.2 3.1 71 2.6 3.8 68 YOUNTS PEAK 8350 9.5 8.3 114 8.6 8.6 100 ----- ----- Basin wide percent of average 104 104 SHOSHONE RIVER BLACKWATER 9780 14.2 12.4 115 13.4 11.1 121 EVENING STAR 9200 16.0 14.3 112 17.3 13.5 128 KIRWIN 9550 6.8 6.1 111 7.3 6.1 120 MARQUETTE 8760 1.7 5.0 34 3.6 5.4 67 SYLVAN LAKE 8420 12.0 11.0 109 15.0 11.4 132 SYLVAN ROAD 7120 8.1 6.5 125 11.1 10.4 107 YOUNTS PEAK 8350 9.5 8.3 114 8.6 8.6 100 ----- ----- Basin wide percent of average 107 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.5 2.7 130 4.5 4.6 98 BIG GOOSE 7990 2.9 4.6 63 4.5 4.6 98 BONE SPRINGS DIV 9350 8.1 8.1 100 7.4 7.5 99 BURGESS JUNCTION 7880 3.8 5.7 67 5.0 6.3 79 CLOUD PEAK RESERVOIR 9860 7.0 5.9 119 7.4 6.6 112 DOME LAKE 8880 3.8 6.2 61 5.9 7.1 83 GRAVE SPRINGS 8550 3.7 4.3 86 4.3 5.0 86 HANSEN SAWMILL 8360 3.0 3.3 91 3.6 4.4 82 LITTLE GOOSE 8870 3.6 -M * 7.2 -M * MIDDLE POWDER 7760 5.1 5.7 89 3.5 7.0 50 POWDER RIVER PASS 9480 6.5 5.4 120 7.2 6.2 116 SOLDIER PARK 8720 2.7 -M * 4.3 -M * SUCKER CREEK 8880 5.2 5.4 96 6.0 6.9 87 TIE CREEK 6870 2.3 2.6 88 4.1 5.3 77 ----- ----- Basin wide percent of average 92 89 BELLE FOURCHE BLIND PARK 6890 3.1 3.8 82 8.5 6.4 133 COLE CANYON 5910 3.2 3.4 94 5.8 4.0 145 NORTH RAPID CREEK 6130 3.4 3.5 97 7.3 5.4 135 ----- ----- Basin wide percent of average 91 137 UPPER N. PLATTE RIVER COLUMBINE 9160 15.6 10.6 147 18.5 12.1 153 DIVIDE PEAK 8880 11.9 9.6 124 15.6 10.4 150 ELK RIVER 8700 12.0 7.7 156 14.6 9.3 157 JOE WRIGHT 10120 14.5 10.1 144 19.6 12.4 158 NORTH FRENCH CREEK 10130 21.1 13.9 152 20.6 12.5 165 OLD BATTLE 10000 23.9 15.1 158 24.5 16.7 147 SAGE CREEK BASIN 7850 10.4 5.6 186 11.3 6.1 185 SOUTH BRUSH CREEK 8440 9.4 5.4 174 12.6 8.1 156 TOWER 10500 27.8 21.5 129 27.5 18.6 148 WEBBER SPRINGS 9250 16.3 11.9 137 20.7 13.6 152 WILLOW CREEK PASS 9540 10.7 5.8 184 10.9 6.6 165 ----- ----- Basin wide percent of average 148 155 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.9 11.2 133 16.4 10.6 155 CASPER MTN. 7900 5.9 7.1 83 8.8 7.4 119 DEADMAN HILL 10220 5.9 7.9 75 13.2 8.1 163 DEER PARK 9700 12.7 7.1 179 13.6 11.3 120 LAPRELE CREEK 8375 5.7 5.5 104 7.0 6.4 109 RENO HILL 8400 7.3 6.8 107 9.1 7.4 123 ROACH 9700 11.2 7.7 145 14.1 8.8 160 SAND LAKE 10050 19.1 15.4 124 18.3 12.0 153 SOUTH PASS 9040 10.2 8.4 121 9.3 9.5 98 WINDY PEAK 7900 4.6 3.6 128 7.2 5.7 126 ----- ----- Basin wide percent of average 121 134 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.0 4.4 136 8.8 7.4 119 DIVIDE PEAK 8880 11.9 9.6 124 15.6 10.4 150 OLD BATTLE 10000 23.9 15.1 158 24.5 16.7 147 SANDSTONE RS 8150 7.4 5.7 130 14.9 9.3 160 WHISKEY PARK 8950 -M 11.7 * 21.3 13.8 154 ----- ----- Basin wide percent of average 141 148 UPPER GREEN RIVER BIG SANDY OPENING 9080 8.0 7.2 111 8.7 6.8 128 BLIND BULL SUM 8650 14.4 13.7 105 11.0 11.6 95 EAST RIM DIVIDE 7930 7.0 6.2 113 6.9 6.0 115 ELKHART PARK G.S. 9400 6.6 6.5 102 7.3 6.9 106 GROS VENTRE SUMMIT 8750 8.7 7.2 121 8.5 6.6 129 GUNSIGHT PASS 9820 9.3 -M * 9.6 -M * KENDALL R.S. 7740 6.6 7.0 94 8.5 7.2 118 LOOMIS PARK 8240 9.6 8.3 116 10.6 8.7 122 NEW FORK LAKE 8340 6.2 5.6 111 6.1 6.1 100 POCKET CREEK 9360 6.5 -M * 8.2 -M * SNIDER BASIN 8060 10.1 7.2 140 10.7 8.3 129 SPRING CREEK DIVIDE 9000 16.4 13.0 126 17.0 13.7 124 TRIPLE PEAK 8500 14.7 12.3 120 16.6 11.7 142 ----- ----- Basin wide percent of average 115 120 LOWER GREEN RIVER HAMS FORK 7840 7.6 5.7 133 8.7 6.1 143 HEWINTA 9519 5.2 4.3 121 9.6 7.2 133 HICKERSON PARK 9145 2.8 3.0 93 4.7 4.3 109 HOLE-IN-ROCK 9150 3.4 2.8 121 5.5 3.9 141 INDIAN CREEK 9425 16.9 13.0 130 16.0 12.7 126 KELLEY R.S. 8180 11.2 7.9 142 13.7 10.5 130 STEEL CREEK PARK 10200 8.5 6.9 123 11.7 7.8 150 ----- ----- Basin wide percent of average 128 133 UPPER BEAR RIVER BUG LAKE 7950 15.5 8.8 176 17.2 9.5 181 HAYDEN FORK 9212 10.8 6.6 164 18.1 10.4 174 KELLEY R.S. 8180 11.2 7.9 142 13.7 10.5 130 LILY LAKE 9156 9.8 5.7 172 13.2 8.9 148 MONTE CRISTO 8960 18.5 11.7 158 20.9 12.6 166 SALT RIVER SUMMIT 7760 8.2 5.7 144 12.1 9.4 129 TRIAL LAKE 9992 21.1 11.0 192 -M 11.7 * ----- ----- Basin wide percent of average 166 155 ----------------------------------------------------------------------------- -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.