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: FEBRUARY 7 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.2 13.5 105 17.2 15.6 110 COTTONWOOD CREEK 7670 18.8 15.0 125 24.7 19.5 127 GRAND TARGHEE 9260 34.3 -M * 24.7 -M * GRANITE CREEK 6770 13.8 13.2 105 16.3 14.5 112 GRASSY LAKE 7265 24.9 24.4 102 27.7 26.3 105 GROS VENTRE SUMMIT 8750 10.7 9.9 108 10.4 9.0 116 GUNSIGHT PASS 9820 12.0 -M * 12.1 -M * LEWIS LAKE DIVIDE 7850 24.4 24.6 99 24.7 26.2 94 PHILLIPS BENCH 8200 21.2 19.7 108 22.4 20.6 109 SALT RIVER SUMMIT 7760 11.6 9.9 117 15.7 13.2 119 SNAKE RIVER STATION 6920 -M 13.5 * -M 16.4 * SPRING CREEK DIVIDE 9000 24.6 18.3 134 24.0 19.2 125 THUMB DIVIDE 7980 13.7 12.5 110 14.0 13.4 104 TOGWOTEE PASS 9580 20.7 17.7 117 22.1 17.6 126 TWO OCEAN PLATEAU 9240 23.6 19.9 119 19.5 19.4 101 WILLOW CREEK 8380 23.5 21.3 110 28.7 22.8 126 ----- ----- Basin wide percent of average 112 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 18.3 16.8 109 17.7 14.6 121 BLACK BEAR 8170 30.2 26.6 114 29.7 27.6 108 CANYON 7870 11.5 9.3 124 12.8 11.3 113 FISHER CREEK 9100 28.2 24.7 114 27.4 25.8 106 MADISON PLATEAU 7750 18.9 16.9 112 20.7 18.4 113 NORTHEAST ENTRANCE 7350 9.5 8.1 117 11.3 9.3 122 PARKER PEAK 9400 20.4 15.3 133 18.5 11.6 159 SYLVAN LAKE 8420 16.8 15.6 108 20.0 15.5 129 THUMB DIVIDE 7980 13.7 12.5 110 14.0 13.4 104 TWO OCEAN PLATEAU 9240 23.6 19.9 119 19.5 19.4 101 WHISKEY CREEK 6800 13.2 11.6 114 16.0 14.5 110 WHITE MILL 8700 19.6 16.7 117 20.2 19.2 105 WOLVERINE 7650 11.9 8.9 134 10.6 9.6 110 ----- ----- Basin wide percent of average 116 113 WIND RIVER BURROUGHS CREEK 8750 10.3 10.4 99 10.8 11.8 92 CASTLE CREEK 8400 4.5 -M * 5.2 -M * COLD SPRINGS 9630 5.9 6.1 97 6.2 7.3 85 DEER PARK 9700 14.4 11.8 122 15.3 15.3 100 HOBBS PARK 10100 9.6 10.0 96 8.7 8.5 102 LITTLE WARM 9370 8.2 8.0 103 8.6 9.5 91 SOUTH PASS 9040 11.8 11.6 102 10.1 12.9 78 ST. LAWRENCE ALT 8620 3.5 4.9 71 4.4 6.0 73 TOGWOTEE PASS 9580 20.7 17.7 117 22.1 17.6 126 TOWNSEND CREEK 8700 -M 5.7 * -M 7.6 * ----- ----- Basin wide percent of average 105 97 BIGHORN BASIN BALD MTN. 9380 17.1 13.8 124 13.7 12.3 111 BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.7 112 BLACKWATER 9780 18.5 17.0 109 17.8 14.8 120 BONE SPRINGS DIV 9350 13.6 11.0 124 11.5 10.0 115 EVENING STAR 9200 23.0 20.5 112 25.3 18.5 137 GRAVE SPRINGS 8550 5.7 6.1 93 6.0 6.6 91 KIRWIN 9550 8.0 7.8 103 8.8 7.9 111 MARQUETTE 8760 1.9 6.0 32 4.7 6.5 72 MIDDLE POWDER 7760 7.0 7.6 92 8.6 8.5 101 OWL CREEK 8975 3.6 3.5 103 3.6 3.8 95 POWDER RIVER PASS 9480 10.3 7.5 137 11.9 8.7 137 SHELL CREEK 9580 12.1 10.2 119 10.8 9.6 113 SYLVAN LAKE 8420 16.8 15.6 108 20.0 15.5 129 SYLVAN ROAD 7120 11.2 9.2 122 14.9 13.8 108 TIMBER CREEK 7950 2.6 3.7 70 3.3 4.7 70 YOUNTS PEAK 8350 12.1 12.3 98 10.8 11.8 92 ----- ----- Basin wide percent of average 109 112 SHOSHONE RIVER BLACKWATER 9780 18.5 17.0 109 17.8 14.8 120 EVENING STAR 9200 23.0 20.5 112 25.3 18.5 137 KIRWIN 9550 8.0 7.8 103 8.8 7.9 111 MARQUETTE 8760 1.9 6.0 32 4.7 6.5 72 SYLVAN LAKE 8420 16.8 15.6 108 20.0 15.5 129 SYLVAN ROAD 7120 11.2 9.2 122 14.9 13.8 108 YOUNTS PEAK 8350 12.1 12.3 98 10.8 11.8 92 ----- ----- Basin wide percent of average 104 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.7 112 BIG GOOSE 7990 5.5 6.3 87 7.1 5.9 120 BONE SPRINGS DIV 9350 13.6 11.0 124 11.5 10.0 115 BURGESS JUNCTION 7880 7.8 7.6 103 8.7 8.2 106 CLOUD PEAK RESERVOIR 9860 11.0 8.3 133 10.9 8.5 128 DOME LAKE 8880 8.0 8.2 98 9.3 9.0 103 GRAVE SPRINGS 8550 5.7 6.1 93 6.0 6.6 91 HANSEN SAWMILL 8360 4.7 4.3 109 5.0 5.5 91 LITTLE GOOSE 8870 6.4 -M * 10.2 -M * MIDDLE POWDER 7760 7.0 7.6 92 8.6 8.5 101 POWDER RIVER PASS 9480 10.3 7.5 137 11.9 8.7 137 SOLDIER PARK 8720 4.6 -M * 6.0 -M * SUCKER CREEK 8880 9.5 7.6 125 10.4 9.1 114 TIE CREEK 6870 5.0 4.2 119 7.2 7.0 103 ----- ----- Basin wide percent of average 114 111 BELLE FOURCHE BLIND PARK 6890 7.7 5.6 138 13.2 8.1 163 COLE CANYON 5910 6.4 4.8 133 9.3 4.9 190 NORTH RAPID CREEK 6130 7.2 5.4 133 11.3 6.5 174 ----- ----- Basin wide percent of average 135 173 UPPER N. PLATTE RIVER CINNABAR PARK 9574 19.2 13.8 139 21.5 15.0 143 COLUMBINE 9160 23.9 17.7 135 24.1 17.5 138 DIVIDE PEAK 8880 15.1 13.5 112 18.9 14.3 132 ELK RIVER 8700 17.2 13.1 131 19.2 13.4 143 JOE WRIGHT 10120 20.5 14.6 140 23.9 17.0 141 NORTH FRENCH CREEK 10130 32.1 19.2 167 -M 17.1 * OLD BATTLE 10000 30.3 21.3 142 26.8 23.6 114 SAGE CREEK BASIN 7850 13.6 7.8 174 13.4 8.3 161 SOUTH BRUSH CREEK 8440 12.8 7.9 162 16.2 11.4 142 TOWER 10500 39.4 31.7 124 35.4 26.7 133 WEBBER SPRINGS 9250 21.0 17.1 123 25.8 18.8 137 WILLOW CREEK PASS 9540 13.1 7.9 166 12.7 8.7 146 ----- ----- Basin wide percent of average 139 136 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.7 16.1 135 22.5 14.9 151 CASPER MTN. 7900 8.6 9.5 91 11.0 9.3 118 DEADMAN HILL 10220 -M 11.1 * -M 11.1 * DEER PARK 9700 14.4 11.8 122 15.3 15.3 100 LAPRELE CREEK 8375 9.1 7.6 120 10.3 8.5 121 RENO HILL 8400 10.6 8.8 120 12.4 9.7 128 ROACH 9700 14.9 11.6 128 18.0 12.2 148 SAND LAKE 10050 26.3 20.9 126 24.7 16.6 149 SOUTH PASS 9040 11.8 11.6 102 10.1 12.9 78 WINDY PEAK 7900 7.2 4.9 147 9.6 7.2 133 ----- ----- Basin wide percent of average 121 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.4 8.2 29 10.8 10.3 105 DIVIDE PEAK 8880 15.1 13.5 112 18.9 14.3 132 OLD BATTLE 10000 30.3 21.3 142 26.8 23.6 114 SANDSTONE RS 8150 -M 10.3 * -M 13.2 * WHISKEY PARK 8950 -M 19.7 * 27.2 20.2 135 ----- ----- Basin wide percent of average 111 122 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.9 10.1 98 10.4 9.5 109 BLIND BULL SUM 8650 21.0 19.3 109 15.1 16.1 94 EAST RIM DIVIDE 7930 10.2 9.0 113 9.0 8.5 106 ELKHART PARK G.S. 9400 8.9 9.3 96 9.0 9.3 97 GROS VENTRE SUMMIT 8750 10.7 9.9 108 10.4 9.0 116 GUNSIGHT PASS 9820 12.0 -M * 12.1 -M * KENDALL R.S. 7740 8.8 10.3 85 10.5 10.3 102 LOOMIS PARK 8240 13.1 11.9 110 14.2 12.4 115 NEW FORK LAKE 8340 8.6 8.1 106 8.0 8.2 98 POCKET CREEK 9360 7.5 -M * 9.9 -M * SNIDER BASIN 8060 14.2 10.3 138 14.3 11.6 123 SPRING CREEK DIVIDE 9000 24.6 18.3 134 24.0 19.2 125 TRIPLE PEAK 8500 22.2 17.5 127 23.5 17.0 138 ----- ----- Basin wide percent of average 114 113 LOWER GREEN RIVER HAMS FORK 7840 11.5 8.9 129 11.7 8.8 133 HEWINTA 9519 8.4 7.2 117 12.0 9.7 124 HICKERSON PARK 9145 4.6 4.7 98 6.5 5.4 120 HOLE-IN-ROCK 9150 5.5 4.5 122 7.0 5.0 140 INDIAN CREEK 9425 22.4 18.5 121 20.6 17.6 117 KELLEY R.S. 8180 14.8 11.3 131 17.5 14.5 121 STEEL CREEK PARK 10200 11.7 10.0 117 14.6 10.7 136 ----- ----- Basin wide percent of average 121 125 UPPER BEAR RIVER BUG LAKE 7950 19.2 14.0 137 20.4 13.6 150 HAYDEN FORK 9212 14.9 10.5 142 21.5 14.3 150 KELLEY R.S. 8180 14.8 11.3 131 17.5 14.5 121 LILY LAKE 9156 12.9 8.7 148 15.8 12.0 132 MONTE CRISTO 8960 23.6 19.6 120 25.0 17.6 142 SALT RIVER SUMMIT 7760 11.6 9.9 117 15.7 13.2 119 TRIAL LAKE 9992 24.7 16.7 148 25.0 16.7 150 ----- ----- Basin wide percent of average 134 138 ----------------------------------------------------------------------------- -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.