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: FEBRUARY 9 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.4 13.7 105 17.6 15.9 111 COTTONWOOD CREEK 7670 19.1 15.3 125 24.9 19.8 126 GRAND TARGHEE 9260 35.2 -M * 24.9 -M * GRANITE CREEK 6770 14.2 13.4 106 16.7 14.8 113 GRASSY LAKE 7265 25.2 24.9 101 27.9 26.7 104 GROS VENTRE SUMMIT 8750 11.1 10.0 111 10.7 9.2 116 GUNSIGHT PASS 9820 12.4 -M * 12.5 -M * LEWIS LAKE DIVIDE 7850 24.5 25.0 98 24.8 26.6 93 PHILLIPS BENCH 8200 21.8 20.0 109 22.9 20.9 110 SALT RIVER SUMMIT 7760 11.8 10.1 117 15.9 13.5 118 SNAKE RIVER STATION 6920 -M 13.8 * -M 16.7 * SPRING CREEK DIVIDE 9000 25.2 18.7 135 24.4 19.4 126 THUMB DIVIDE 7980 13.5 12.7 106 13.9 13.6 102 TOGWOTEE PASS 9580 21.3 18.0 118 22.7 17.9 127 TWO OCEAN PLATEAU 9240 23.8 20.2 118 19.6 19.8 99 WILLOW CREEK 8380 24.0 21.7 111 29.1 23.2 125 ----- ----- Basin wide percent of average 112 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 18.6 17.1 109 18.2 14.8 123 BLACK BEAR 8170 30.5 27.2 112 30.0 28.0 107 CANYON 7870 11.7 9.5 123 12.9 11.4 113 FISHER CREEK 9100 28.6 25.2 113 27.9 26.2 106 MADISON PLATEAU 7750 19.0 17.2 110 20.7 18.7 111 NORTHEAST ENTRANCE 7350 9.7 8.2 118 11.6 9.4 123 PARKER PEAK 9400 20.6 15.5 133 18.7 11.8 158 SYLVAN LAKE 8420 16.9 15.9 106 20.3 15.7 129 THUMB DIVIDE 7980 13.5 12.7 106 13.9 13.6 102 TWO OCEAN PLATEAU 9240 23.8 20.2 118 19.6 19.8 99 WHISKEY CREEK 6800 13.3 11.9 112 16.1 14.7 110 WHITE MILL 8700 20.0 17.0 118 20.6 19.5 106 WOLVERINE 7650 12.1 9.1 133 10.8 9.7 111 ----- ----- Basin wide percent of average 115 113 WIND RIVER BURROUGHS CREEK 8750 10.7 10.6 101 11.2 11.9 94 CASTLE CREEK 8400 4.6 -M * 5.3 -M * COLD SPRINGS 9630 6.2 6.2 100 6.3 7.4 85 DEER PARK 9700 14.5 12.3 118 15.5 15.6 99 HOBBS PARK 10100 9.8 10.2 96 8.9 8.7 102 LITTLE WARM 9370 8.5 8.1 105 8.7 9.6 91 SOUTH PASS 9040 12.0 11.9 101 10.4 13.1 79 ST. LAWRENCE ALT 8620 4.2 5.0 84 5.0 6.1 82 TOGWOTEE PASS 9580 21.3 18.0 118 22.7 17.9 127 TOWNSEND CREEK 8700 -M 5.9 * -M 7.7 * ----- ----- Basin wide percent of average 106 98 BIGHORN BASIN BALD MTN. 9380 17.3 14.0 124 13.9 12.4 112 BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.8 110 BLACKWATER 9780 18.9 17.4 109 18.2 15.0 121 BONE SPRINGS DIV 9350 13.8 11.1 124 11.7 10.1 116 EVENING STAR 9200 23.3 21.0 111 25.6 18.7 137 GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.7 93 KIRWIN 9550 8.3 8.0 104 9.1 8.0 114 MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77 MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.6 101 OWL CREEK 8975 3.9 3.5 111 3.8 3.9 97 POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.8 140 SHELL CREEK 9580 12.3 10.3 119 11.1 9.8 113 SYLVAN LAKE 8420 16.9 15.9 106 20.3 15.7 129 SYLVAN ROAD 7120 11.5 9.5 121 15.3 14.0 109 TIMBER CREEK 7950 2.8 3.7 76 3.4 4.7 72 YOUNTS PEAK 8350 12.3 12.6 98 11.0 12.0 92 ----- ----- Basin wide percent of average 109 113 SHOSHONE RIVER BLACKWATER 9780 18.9 17.4 109 18.2 15.0 121 EVENING STAR 9200 23.3 21.0 111 25.6 18.7 137 KIRWIN 9550 8.3 8.0 104 9.1 8.0 114 MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77 SYLVAN LAKE 8420 16.9 15.9 106 20.3 15.7 129 SYLVAN ROAD 7120 11.5 9.5 121 15.3 14.0 109 YOUNTS PEAK 8350 12.3 12.6 98 11.0 12.0 92 ----- ----- Basin wide percent of average 103 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.8 110 BIG GOOSE 7990 5.5 6.4 86 7.1 6.0 118 BONE SPRINGS DIV 9350 13.8 11.1 124 11.7 10.1 116 BURGESS JUNCTION 7880 7.8 7.7 101 8.7 8.3 105 CLOUD PEAK RESERVOIR 9860 11.0 8.5 129 10.8 8.6 126 DOME LAKE 8880 8.1 8.4 96 9.4 9.1 103 GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.7 93 HANSEN SAWMILL 8360 4.7 4.4 107 5.0 5.6 89 LITTLE GOOSE 8870 6.5 -M * 10.4 -M * MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.6 101 POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.8 140 SOLDIER PARK 8720 4.8 -M * 6.2 -M * SUCKER CREEK 8880 9.6 7.7 125 10.5 9.2 114 TIE CREEK 6870 5.1 4.2 121 7.2 7.1 101 ----- ----- Basin wide percent of average 114 111 BELLE FOURCHE BLIND PARK 6890 7.7 5.7 135 13.4 8.2 163 COLE CANYON 5910 6.6 4.8 138 9.5 4.9 194 NORTH RAPID CREEK 6130 7.3 5.5 133 11.4 6.6 173 ----- ----- Basin wide percent of average 135 174 UPPER N. PLATTE RIVER CINNABAR PARK 9574 20.2 14.0 144 21.3 15.2 140 COLUMBINE 9160 24.6 18.1 136 24.0 17.8 135 DIVIDE PEAK 8880 15.6 13.7 114 19.5 14.6 134 ELK RIVER 8700 18.2 13.4 136 20.0 13.6 147 JOE WRIGHT 10120 21.2 14.9 142 25.0 17.2 145 NORTH FRENCH CREEK 10130 33.2 19.5 170 -M 17.4 * OLD BATTLE 10000 30.8 21.7 142 26.7 24.0 111 SAGE CREEK BASIN 7850 14.7 7.9 186 13.7 8.4 163 SOUTH BRUSH CREEK 8440 13.3 8.0 166 16.5 11.6 142 TOWER 10500 40.7 32.3 126 35.4 27.2 130 WEBBER SPRINGS 9250 21.7 17.4 125 26.6 19.1 139 WILLOW CREEK PASS 9540 13.6 8.1 168 13.1 8.9 147 ----- ----- Basin wide percent of average 142 136 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 22.2 16.4 135 23.1 15.1 153 CASPER MTN. 7900 8.6 9.6 90 11.2 9.5 118 DEADMAN HILL 10220 14.6 11.2 130 16.6 11.3 147 DEER PARK 9700 14.5 12.3 118 15.5 15.6 99 LAPRELE CREEK 8375 9.1 7.7 118 10.4 8.6 121 RENO HILL 8400 10.8 8.9 121 12.4 9.9 125 ROACH 9700 15.6 11.9 131 18.6 12.4 150 SAND LAKE 10050 26.9 21.2 127 25.2 16.8 150 SOUTH PASS 9040 12.0 11.9 101 10.4 13.1 79 WINDY PEAK 7900 7.4 5.0 148 9.9 7.3 136 ----- ----- Basin wide percent of average 122 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 8.4 * 11.5 10.5 110 DIVIDE PEAK 8880 15.6 13.7 114 19.5 14.6 134 OLD BATTLE 10000 30.8 21.7 142 26.7 24.0 111 SANDSTONE RS 8150 -M 10.5 * -M 13.4 * WHISKEY PARK 8950 -M 20.1 * 28.4 20.5 139 ----- ----- Basin wide percent of average 131* 124 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.8 10.2 96 10.3 9.6 107 BLIND BULL SUM 8650 21.3 19.6 109 15.4 16.4 94 EAST RIM DIVIDE 7930 10.5 9.2 114 -M 8.6 * ELKHART PARK G.S. 9400 9.0 9.4 96 9.1 9.4 97 GROS VENTRE SUMMIT 8750 11.1 10.0 111 10.7 9.2 116 GUNSIGHT PASS 9820 12.4 -M * 12.5 -M * KENDALL R.S. 7740 9.0 10.5 86 10.8 10.5 103 LOOMIS PARK 8240 13.7 12.1 113 14.8 12.6 117 NEW FORK LAKE 8340 9.0 8.2 110 8.4 8.3 101 POCKET CREEK 9360 7.4 -M * 10.0 -M * SNIDER BASIN 8060 14.7 10.5 140 14.7 11.8 125 SPRING CREEK DIVIDE 9000 25.2 18.7 135 24.4 19.4 126 TRIPLE PEAK 8500 22.6 17.8 127 23.9 17.3 138 ----- ----- Basin wide percent of average 114 114 LOWER GREEN RIVER HAMS FORK 7840 11.6 9.1 127 11.7 8.9 131 HEWINTA 9519 9.0 7.3 123 12.5 9.9 126 HICKERSON PARK 9145 4.8 4.8 100 6.5 5.5 118 HOLE-IN-ROCK 9150 5.8 4.6 126 7.4 5.0 148 INDIAN CREEK 9425 22.5 18.8 120 20.7 17.9 116 KELLEY R.S. 8180 14.9 11.5 130 17.4 14.8 118 STEEL CREEK PARK 10200 12.2 10.3 118 15.3 10.9 140 ----- ----- Basin wide percent of average 122 126 UPPER BEAR RIVER BUG LAKE 7950 20.0 14.3 140 20.2 13.8 146 HAYDEN FORK 9212 16.1 10.7 150 22.4 14.5 154 KELLEY R.S. 8180 14.9 11.5 130 17.4 14.8 118 LILY LAKE 9156 13.7 8.9 154 16.5 12.2 135 MONTE CRISTO 8960 24.1 20.0 121 24.9 17.9 139 SALT RIVER SUMMIT 7760 11.8 10.1 117 15.9 13.5 118 TRIAL LAKE 9992 25.5 17.0 150 26.2 17.0 154 ----- ----- Basin wide percent of average 136 138 ----------------------------------------------------------------------------- -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.