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: FEBRUARY 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 13.9 12.7 109 16.9 14.9 113 COTTONWOOD CREEK 7670 18.4 14.2 130 24.1 18.7 129 GRAND TARGHEE 9260 33.3 -M * 24.2 -M * GRANITE CREEK 6770 13.6 12.4 110 15.9 13.7 116 GRASSY LAKE 7265 24.4 23.0 106 27.1 25.0 108 GROS VENTRE SUMMIT 8750 10.1 9.5 106 9.8 8.7 113 GUNSIGHT PASS 9820 11.4 -M * 11.6 -M * LEWIS LAKE DIVIDE 7850 23.7 23.1 103 24.1 24.9 97 PHILLIPS BENCH 8200 20.7 18.5 112 21.9 19.5 112 SALT RIVER SUMMIT 7760 11.3 9.2 123 15.2 12.6 121 SNAKE RIVER STATION 6920 -M 12.6 * 17.9 15.6 115 SPRING CREEK DIVIDE 9000 23.9 17.4 137 23.3 18.3 127 THUMB DIVIDE 7980 13.5 11.8 114 13.6 12.7 107 TOGWOTEE PASS 9580 19.8 16.9 117 21.2 16.8 126 TWO OCEAN PLATEAU 9240 22.9 19.0 121 18.7 18.5 101 WILLOW CREEK 8380 22.9 20.2 113 28.0 21.8 128 ----- ----- Basin wide percent of average 115 115 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.3 16.2 107 16.9 14.0 121 BLACK BEAR 8170 29.3 25.6 114 29.0 26.1 111 CANYON 7870 11.0 8.9 124 12.4 10.8 115 FISHER CREEK 9100 26.5 23.8 111 25.6 24.6 104 MADISON PLATEAU 7750 18.4 16.2 114 20.2 17.5 115 NORTHEAST ENTRANCE 7350 8.8 7.7 114 10.7 8.9 120 PARKER PEAK 9400 19.6 14.8 132 18.1 11.1 163 SYLVAN LAKE 8420 16.1 15.2 106 19.4 14.8 131 THUMB DIVIDE 7980 13.5 11.8 114 13.6 12.7 107 TWO OCEAN PLATEAU 9240 22.9 19.0 121 18.7 18.5 101 WHISKEY CREEK 6800 13.2 11.1 119 15.6 13.8 113 WHITE MILL 8700 18.3 16.1 114 19.1 18.3 104 WOLVERINE 7650 11.4 8.6 133 10.4 9.2 113 ----- ----- Basin wide percent of average 116 115 WIND RIVER BURROUGHS CREEK 8750 10.1 10.1 100 10.6 11.3 94 CASTLE CREEK 8400 4.3 -M * 5.0 -M * COLD SPRINGS 9630 5.8 6.0 97 5.7 7.1 80 DEER PARK 9700 14.1 11.7 121 15.3 14.5 106 HOBBS PARK 10100 9.5 9.8 97 8.6 8.2 105 LITTLE WARM 9370 8.1 7.8 104 8.5 9.1 93 SOUTH PASS 9040 11.6 11.4 102 10.2 12.2 84 ST. LAWRENCE ALT 8620 3.7 4.8 77 4.5 5.7 79 TOGWOTEE PASS 9580 19.8 16.9 117 21.2 16.8 126 TOWNSEND CREEK 8700 5.5 5.6 98 7.4 7.3 101 ----- ----- Basin wide percent of average 105 100 BIGHORN BASIN BALD MTN. 9380 16.0 13.5 119 13.4 11.8 114 BEAR TRAP MEADOW 8200 5.5 3.5 157 5.9 5.5 107 BLACKWATER 9780 17.9 16.6 108 17.4 14.2 123 BONE SPRINGS DIV 9350 12.9 10.6 122 11.1 9.6 116 EVENING STAR 9200 22.5 19.7 114 24.9 17.6 141 GRAVE SPRINGS 8550 5.1 5.7 89 5.4 6.4 84 KIRWIN 9550 7.8 7.7 101 8.6 7.6 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.2 74 MIDDLE POWDER 7760 6.4 7.2 89 4.3 8.3 52 OWL CREEK 8975 3.2 3.4 94 3.3 3.7 89 POWDER RIVER PASS 9480 10.0 7.2 139 11.7 8.3 141 SHELL CREEK 9580 11.7 9.9 118 10.5 9.3 113 SYLVAN LAKE 8420 16.1 15.2 106 19.4 14.8 131 SYLVAN ROAD 7120 10.8 8.8 123 14.3 13.3 108 TIMBER CREEK 7950 2.7 3.6 75 3.2 4.5 71 YOUNTS PEAK 8350 11.8 12.0 98 10.5 11.4 92 ----- ----- Basin wide percent of average 108 110 SHOSHONE RIVER BLACKWATER 9780 17.9 16.6 108 17.4 14.2 123 EVENING STAR 9200 22.5 19.7 114 24.9 17.6 141 KIRWIN 9550 7.8 7.7 101 8.6 7.6 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.2 74 SYLVAN LAKE 8420 16.1 15.2 106 19.4 14.8 131 SYLVAN ROAD 7120 10.8 8.8 123 14.3 13.3 108 YOUNTS PEAK 8350 11.8 12.0 98 10.5 11.4 92 ----- ----- Basin wide percent of average 103 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 3.5 157 5.9 5.5 107 BIG GOOSE 7990 5.2 6.0 87 6.7 5.7 118 BONE SPRINGS DIV 9350 12.9 10.6 122 11.1 9.6 116 BURGESS JUNCTION 7880 6.7 7.4 91 7.8 7.9 99 CLOUD PEAK RESERVOIR 9860 10.2 8.1 126 9.9 8.2 121 DOME LAKE 8880 7.4 7.9 94 8.6 8.7 99 GRAVE SPRINGS 8550 5.1 5.7 89 5.4 6.4 84 HANSEN SAWMILL 8360 4.7 4.2 112 5.0 5.3 94 LITTLE GOOSE 8870 5.9 -M * 9.8 -M * MIDDLE POWDER 7760 6.4 7.2 89 4.3 8.3 52 POWDER RIVER PASS 9480 10.0 7.2 139 11.7 8.3 141 SOLDIER PARK 8720 4.5 -M * 5.9 -M * SUCKER CREEK 8880 8.6 7.2 119 9.4 8.8 107 TIE CREEK 6870 4.3 4.0 108 6.4 6.8 94 ----- ----- Basin wide percent of average 110 103 BELLE FOURCHE BLIND PARK 6890 6.0 5.2 115 11.8 7.8 151 COLE CANYON 5910 5.6 4.5 124 8.3 4.7 177 NORTH RAPID CREEK 6130 5.8 5.0 116 9.6 6.3 152 ----- ----- Basin wide percent of average 118 158 UPPER N. PLATTE RIVER CINNABAR PARK 9574 18.1 13.2 137 21.2 14.3 148 COLUMBINE 9160 21.9 16.5 133 24.0 16.7 144 DIVIDE PEAK 8880 14.3 13.0 110 18.4 13.7 134 ELK RIVER 8700 16.1 12.2 132 18.0 12.7 142 JOE WRIGHT 10120 18.5 13.9 133 23.5 16.2 145 NORTH FRENCH CREEK 10130 29.6 18.4 161 27.9 16.4 170 OLD BATTLE 10000 29.0 20.0 145 26.6 22.4 119 SAGE CREEK BASIN 7850 12.4 7.5 165 13.1 7.9 166 SOUTH BRUSH CREEK 8440 11.6 7.4 157 14.9 10.9 137 TOWER 10500 37.7 30.1 125 35.4 25.4 139 WEBBER SPRINGS 9250 20.1 16.1 125 24.8 18.0 138 WILLOW CREEK PASS 9540 12.4 7.5 165 12.1 8.3 146 ----- ----- Basin wide percent of average 137 142 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.5 15.3 134 21.4 14.3 150 CASPER MTN. 7900 7.6 9.0 84 10.3 8.9 116 DEADMAN HILL 10220 9.3 10.6 88 15.0 10.6 142 DEER PARK 9700 14.1 11.7 121 15.3 14.5 106 LAPRELE CREEK 8375 8.0 7.3 110 9.1 8.1 112 RENO HILL 8400 9.2 8.4 110 10.7 9.3 115 ROACH 9700 13.6 11.0 124 16.8 11.7 144 SAND LAKE 10050 24.3 19.9 122 22.9 15.9 144 SOUTH PASS 9040 11.6 11.4 102 10.2 12.2 84 WINDY PEAK 7900 6.4 4.5 142 9.0 7.0 129 ----- ----- Basin wide percent of average 114 125 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.0 7.8 38 10.4 9.9 105 DIVIDE PEAK 8880 14.3 13.0 110 18.4 13.7 134 OLD BATTLE 10000 29.0 20.0 145 26.6 22.4 119 SANDSTONE RS 8150 -M 9.7 * -M 12.5 * WHISKEY PARK 8950 -M 18.5 * 27.1 19.4 140 ----- ----- Basin wide percent of average 113 126 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.6 9.5 101 10.2 9.0 113 BLIND BULL SUM 8650 20.1 18.4 109 14.4 15.4 94 EAST RIM DIVIDE 7930 9.6 8.5 113 8.7 8.1 107 ELKHART PARK G.S. 9400 8.5 8.8 97 8.8 8.9 99 GROS VENTRE SUMMIT 8750 10.1 9.5 106 9.8 8.7 113 GUNSIGHT PASS 9820 11.4 -M * 11.6 -M * KENDALL R.S. 7740 8.5 9.8 87 10.4 9.7 107 LOOMIS PARK 8240 12.6 11.2 113 13.6 11.8 115 NEW FORK LAKE 8340 8.1 7.7 105 7.7 7.9 97 POCKET CREEK 9360 7.4 -M * 9.7 -M * SNIDER BASIN 8060 13.9 9.8 142 13.8 11.1 124 SPRING CREEK DIVIDE 9000 23.9 17.4 137 23.3 18.3 127 TRIPLE PEAK 8500 21.2 16.6 128 22.5 16.2 139 ----- ----- Basin wide percent of average 115 114 LOWER GREEN RIVER HAMS FORK 7840 11.1 8.4 132 11.2 8.4 133 HEWINTA 9519 7.6 6.7 113 11.5 9.3 124 HICKERSON PARK 9145 4.3 4.4 98 6.1 5.2 117 HOLE-IN-ROCK 9150 4.9 4.1 120 6.5 4.8 135 INDIAN CREEK 9425 21.8 17.6 124 19.9 16.8 118 KELLEY R.S. 8180 14.4 10.7 135 17.0 13.9 122 STEEL CREEK PARK 10200 11.1 9.4 118 14.1 10.1 140 ----- ----- Basin wide percent of average 123 126 UPPER BEAR RIVER BUG LAKE 7950 18.7 13.2 142 20.2 12.9 157 HAYDEN FORK 9212 13.9 9.8 142 20.6 13.6 151 KELLEY R.S. 8180 14.4 10.7 135 17.0 13.9 122 LILY LAKE 9156 12.6 8.2 154 15.0 11.5 130 MONTE CRISTO 8960 23.0 18.2 126 24.7 16.7 148 SALT RIVER SUMMIT 7760 11.3 9.2 123 15.2 12.6 121 TRIAL LAKE 9992 23.9 15.7 152 24.6 15.8 156 ----- ----- Basin wide percent of average 139 142 ----------------------------------------------------------------------------- -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.