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 SUNDAY: JANUARY 23 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.9 11.5 121 16.8 13.7 123 COTTONWOOD CREEK 7670 19.3 13.0 148 24.0 17.4 138 GRAND TARGHEE 9260 32.8 -M * 24.0 -M * GRANITE CREEK 6770 13.7 11.0 125 15.9 12.6 126 GRASSY LAKE 7265 24.0 20.6 117 26.5 23.1 115 GROS VENTRE SUMMIT 8750 10.0 8.8 114 9.7 8.0 121 GUNSIGHT PASS 9820 11.4 -M * 11.5 -M * LEWIS LAKE DIVIDE 7850 23.4 20.7 113 24.2 22.9 106 PHILLIPS BENCH 8200 20.6 16.8 123 21.6 18.0 120 SALT RIVER SUMMIT 7760 11.3 8.1 140 15.2 11.7 130 SNAKE RIVER STATION 6920 9.7 11.2 87 17.4 14.3 122 SPRING CREEK DIVIDE 9000 23.7 16.0 148 23.2 17.0 136 THUMB DIVIDE 7980 13.3 10.6 125 13.5 11.8 114 TOGWOTEE PASS 9580 19.5 15.4 127 20.7 15.6 133 TWO OCEAN PLATEAU 9240 22.6 17.4 130 17.2 17.1 101 WILLOW CREEK 8380 22.7 18.6 122 26.8 20.2 133 ----- ----- Basin wide percent of average 124 122 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 16.6 15.1 110 16.1 12.9 125 BLACK BEAR 8170 28.6 23.8 120 27.5 23.8 116 CANYON 7870 10.5 8.2 128 11.7 10.0 117 FISHER CREEK 9100 25.7 22.0 117 24.5 22.7 108 MADISON PLATEAU 7750 18.0 15.1 119 19.5 16.0 122 NORTHEAST ENTRANCE 7350 8.3 7.0 119 10.3 8.2 126 PARKER PEAK 9400 18.8 13.7 137 17.3 10.3 168 SYLVAN LAKE 8420 15.5 13.9 112 18.8 13.7 137 THUMB DIVIDE 7980 13.3 10.6 125 13.5 11.8 114 TWO OCEAN PLATEAU 9240 22.6 17.4 130 17.2 17.1 101 WHISKEY CREEK 6800 12.7 10.3 123 15.3 12.8 120 WHITE MILL 8700 17.6 14.9 118 18.3 16.7 110 WOLVERINE 7650 11.0 7.9 139 9.8 8.6 114 ----- ----- Basin wide percent of average 122 119 WIND RIVER BURROUGHS CREEK 8750 9.8 9.3 105 10.3 10.5 98 CASTLE CREEK 8400 4.2 -M * 4.7 -M * COLD SPRINGS 9630 5.6 5.7 98 5.5 6.7 82 DEER PARK 9700 13.8 11.1 124 14.9 13.5 110 HOBBS PARK 10100 9.3 9.3 100 8.1 7.7 105 LITTLE WARM 9370 7.9 7.2 110 8.0 8.5 94 SOUTH PASS 9040 11.2 10.5 107 9.7 11.3 86 ST. LAWRENCE ALT 8620 3.3 4.6 72 4.3 5.4 80 TOGWOTEE PASS 9580 19.5 15.4 127 20.7 15.6 133 TOWNSEND CREEK 8700 4.9 5.3 92 7.0 6.9 101 ----- ----- Basin wide percent of average 109 103 BIGHORN BASIN BALD MTN. 9380 15.2 12.5 122 12.6 11.0 115 BEAR TRAP MEADOW 8200 5.2 3.3 158 5.5 5.2 106 BLACKWATER 9780 17.4 15.2 114 16.8 13.2 127 BONE SPRINGS DIV 9350 12.3 9.9 124 10.4 9.0 116 EVENING STAR 9200 21.9 18.2 120 23.8 16.4 145 GRAVE SPRINGS 8550 4.8 5.3 91 5.2 6.1 85 KIRWIN 9550 7.6 7.3 104 8.3 7.2 115 MARQUETTE 8760 1.6 5.7 28 4.0 5.9 68 MIDDLE POWDER 7760 6.2 6.7 93 3.9 7.9 49 OWL CREEK 8975 2.8 3.2 88 3.0 3.5 86 POWDER RIVER PASS 9480 -M 6.7 * -M 7.7 * SHELL CREEK 9580 11.2 9.2 122 10.1 8.6 117 SYLVAN LAKE 8420 15.5 13.9 112 18.8 13.7 137 SYLVAN ROAD 7120 10.7 8.2 130 14.0 12.5 112 TIMBER CREEK 7950 2.4 3.5 69 3.0 4.3 70 YOUNTS PEAK 8350 11.6 10.9 106 10.1 10.6 95 ----- ----- Basin wide percent of average 110 111 SHOSHONE RIVER BLACKWATER 9780 17.4 15.2 114 16.8 13.2 127 EVENING STAR 9200 21.9 18.2 120 23.8 16.4 145 KIRWIN 9550 7.6 7.3 104 8.3 7.2 115 MARQUETTE 8760 1.6 5.7 28 4.0 5.9 68 SYLVAN LAKE 8420 15.5 13.9 112 18.8 13.7 137 SYLVAN ROAD 7120 10.7 8.2 130 14.0 12.5 112 YOUNTS PEAK 8350 11.6 10.9 106 10.1 10.6 95 ----- ----- Basin wide percent of average 109 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.2 3.3 158 5.5 5.2 106 BIG GOOSE 7990 4.5 5.5 82 6.0 5.1 118 BONE SPRINGS DIV 9350 12.3 9.9 124 10.4 9.0 116 BURGESS JUNCTION 7880 5.8 6.9 84 6.8 7.4 92 CLOUD PEAK RESERVOIR 9860 9.5 7.4 128 8.8 7.7 114 DOME LAKE 8880 6.9 7.5 92 8.1 8.2 99 GRAVE SPRINGS 8550 4.8 5.3 91 5.2 6.1 85 HANSEN SAWMILL 8360 4.1 3.9 105 4.6 5.0 92 LITTLE GOOSE 8870 5.4 -M * 9.1 -M * MIDDLE POWDER 7760 6.2 6.7 93 3.9 7.9 49 POWDER RIVER PASS 9480 -M 6.7 * -M 7.7 * SOLDIER PARK 8720 4.0 -M * 5.4 -M * SUCKER CREEK 8880 7.7 6.7 115 8.5 8.2 104 TIE CREEK 6870 3.6 3.7 97 5.6 6.3 89 ----- ----- Basin wide percent of average 106 96 BELLE FOURCHE BLIND PARK 6890 5.7 4.9 116 11.5 7.4 155 COLE CANYON 5910 -M 4.2 * 8.1 4.5 180 NORTH RAPID CREEK 6130 5.6 4.5 124 9.5 6.0 158 ----- ----- Basin wide percent of average 120 163 UPPER N. PLATTE RIVER CINNABAR PARK 9574 18.2 12.4 147 20.2 13.6 149 COLUMBINE 9160 21.5 14.5 148 23.5 15.3 154 DIVIDE PEAK 8880 14.1 12.0 118 17.7 12.7 139 ELK RIVER 8700 15.6 10.8 144 17.8 11.7 152 JOE WRIGHT 10120 17.8 12.7 140 23.5 15.0 157 NORTH FRENCH CREEK 10130 28.6 17.1 167 27.5 15.2 181 OLD BATTLE 10000 28.4 18.4 154 26.6 20.7 129 SAGE CREEK BASIN 7850 12.1 7.0 173 12.7 7.4 172 SOUTH BRUSH CREEK 8440 11.0 6.7 164 14.3 10.0 143 TOWER 10500 36.7 27.3 134 35.2 23.4 150 WEBBER SPRINGS 9250 19.8 14.7 135 24.5 16.8 146 WILLOW CREEK PASS 9540 11.3 6.9 164 11.9 7.8 153 ----- ----- Basin wide percent of average 146 151 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.1 14.1 143 21.1 13.2 160 CASPER MTN. 7900 7.2 8.4 86 9.8 8.4 117 DEADMAN HILL 10220 9.0 9.7 93 14.7 9.8 150 DEER PARK 9700 13.8 11.1 124 14.9 13.5 110 LAPRELE CREEK 8375 7.6 6.7 113 8.8 7.6 116 RENO HILL 8400 8.8 7.9 111 10.6 8.8 120 ROACH 9700 13.3 9.9 134 16.5 10.8 153 SAND LAKE 10050 23.6 18.5 128 22.3 14.8 151 SOUTH PASS 9040 11.2 10.5 107 9.7 11.3 86 WINDY PEAK 7900 6.0 4.2 143 8.4 6.6 127 ----- ----- Basin wide percent of average 119 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.4 6.9 93 10.2 9.2 111 DIVIDE PEAK 8880 14.1 12.0 118 17.7 12.7 139 OLD BATTLE 10000 28.4 18.4 154 26.6 20.7 129 SANDSTONE RS 8150 9.2 8.5 108 17.2 11.6 148 WHISKEY PARK 8950 -M 16.4 * 26.8 17.9 150 ----- ----- Basin wide percent of average 127 137 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.6 8.8 109 10.1 8.3 122 BLIND BULL SUM 8650 20.0 17.0 118 14.6 14.3 102 EAST RIM DIVIDE 7930 9.5 7.7 123 8.7 7.5 116 ELKHART PARK G.S. 9400 8.6 8.1 106 8.8 8.3 106 GROS VENTRE SUMMIT 8750 10.0 8.8 114 9.7 8.0 121 GUNSIGHT PASS 9820 11.4 -M * 11.5 -M * KENDALL R.S. 7740 8.6 9.0 96 10.3 9.0 114 LOOMIS PARK 8240 12.5 10.3 121 13.5 10.9 124 NEW FORK LAKE 8340 8.2 7.0 117 7.8 7.4 105 POCKET CREEK 9360 7.6 -M * 9.7 -M * SNIDER BASIN 8060 14.0 8.9 157 13.9 10.3 135 SPRING CREEK DIVIDE 9000 23.7 16.0 148 23.2 17.0 136 TRIPLE PEAK 8500 20.9 15.3 137 22.6 14.9 152 ----- ----- Basin wide percent of average 125 124 LOWER GREEN RIVER HAMS FORK 7840 10.8 7.5 144 10.9 7.7 142 HEWINTA 9519 7.2 5.9 122 11.2 8.6 130 HICKERSON PARK 9145 3.6 4.0 90 5.3 4.9 108 HOLE-IN-ROCK 9150 4.4 3.7 119 6.0 4.5 133 INDIAN CREEK 9425 21.7 16.2 134 19.8 15.6 127 KELLEY R.S. 8180 14.2 9.7 146 16.9 12.9 131 STEEL CREEK PARK 10200 10.5 8.5 124 13.6 9.4 145 ----- ----- Basin wide percent of average 130 132 UPPER BEAR RIVER BUG LAKE 7950 18.3 11.8 155 20.1 11.9 169 HAYDEN FORK 9212 13.4 8.8 152 20.4 12.6 162 KELLEY R.S. 8180 14.2 9.7 146 16.9 12.9 131 LILY LAKE 9156 11.6 7.4 157 14.9 10.7 139 MONTE CRISTO 8960 22.4 16.1 139 24.3 15.5 157 SALT RIVER SUMMIT 7760 11.3 8.1 140 15.2 11.7 130 TRIAL LAKE 9992 23.5 14.1 167 24.4 14.6 167 ----- ----- Basin wide percent of average 151 152 ----------------------------------------------------------------------------- -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.