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 15 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 17.4 14.4 121 21.5 16.8 128 COTTONWOOD CREEK 7600 23.1 16.0 144 25.6 20.9 122 GRANITE CREEK 6770 17.5 14.2 123 19.7 15.5 127 GRASSY LAKE 7265 30.0 26.2 115 34.0 28.0 121 GROS VENTRE SUMMIT 8750 9.5 10.4 91 10.2 9.8 104 LEWIS LAKE DIVIDE 7850 33.3 26.4 126 32.8 28.2 116 PHILLIPS BENCH 8200 25.5 21.1 121 26.6 22.1 120 SALT RIVER SUMMIT 7600 12.6 10.8 117 15.5 14.2 109 SNAKE RIVER STATION 6920 17.0 14.6 116 21.9 17.6 124 SPRING CREEK DIVIDE 9000 25.9 19.7 131 -M 20.4 * THUMB DIVIDE 7980 14.3 13.5 106 14.9 14.3 104 TOGWOTEE PASS 9580 19.7 18.8 105 20.7 18.8 110 TWO OCEAN PLATEAU 9240 29.3 21.1 139 23.3 20.9 111 WILLOW CREEK 8450 27.5 22.7 121 31.7 24.4 130 ----- ----- Basin wide percent of average 121 119 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 17.6 18.2 97 15.3 15.6 98 BLACK BEAR 8170 39.5 29.1 136 -M 29.7 * CANYON 8090 11.8 10.1 117 14.3 11.9 120 FISHER CREEK 9100 32.2 26.6 121 29.9 27.6 108 MADISON PLATEAU 7750 21.3 18.5 115 24.9 19.8 126 NORTHEAST ENTRANCE 7350 8.0 8.8 91 10.2 9.9 103 PARKER PEAK 9400 14.9 16.4 91 13.7 12.4 110 SYLVAN LAKE 8420 13.7 16.7 82 17.3 16.4 105 THUMB DIVIDE 7980 14.3 13.5 106 14.9 14.3 104 TWO OCEAN PLATEAU 9240 29.3 21.1 139 23.3 20.9 111 WHISKEY CREEK 6800 12.6 12.7 99 18.9 15.6 121 WHITE MILL 8700 20.4 18.1 113 18.5 20.5 90 WOLVERINE 7650 8.7 9.7 90 7.3 10.2 72 ----- ----- Basin wide percent of average 111 107 WIND RIVER BURROUGHS CREEK 8750 11.0 11.3 97 13.0 12.5 104 COLD SPRINGS 9630 3.6 6.4 56 6.3 7.8 81 DEER PARK 9700 13.0 13.7 95 15.9 16.1 99 HOBBS PARK 10100 7.6 10.7 71 8.3 9.1 91 LITTLE WARM 9370 6.6 8.5 78 9.0 10.0 90 SOUTH PASS 9040 12.4 12.5 99 13.2 13.6 97 ST. LAWRENCE ALT 8620 1.8 5.2 35 4.4 6.3 70 TOGWOTEE PASS 9580 19.7 18.8 105 20.7 18.8 110 TOWNSEND CREEK 8700 4.2 6.3 67 6.9 8.1 85 ----- ----- Basin wide percent of average 86 96 BIGHORN BASIN BALD MTN. 9380 11.6 14.5 80 8.9 12.9 69 BEAR TRAP MEADOW 8200 4.2 3.9 108 6.1 6.0 102 BLACKWATER 9780 17.4 18.3 95 15.7 15.7 100 BONE SPRINGS DIV 9350 9.8 11.7 84 9.7 10.6 92 EVENING STAR 9200 20.0 22.3 90 22.0 19.7 112 GRAVE SPRINGS 8550 7.3 6.5 112 9.3 7.1 131 KIRWIN 9550 7.7 8.3 93 8.3 8.4 99 MARQUETTE 8760 1.4 6.3 22 5.6 6.8 82 MIDDLE POWDER 7760 9.9 8.1 122 8.4 8.9 94 OWL CREEK 8975 1.8 3.7 49 3.8 4.1 93 POWDER RIVER PASS 9480 7.4 7.9 94 8.8 9.2 96 SHELL CREEK 9580 10.0 10.7 93 9.4 10.1 93 SYLVAN LAKE 8420 13.7 16.7 82 17.3 16.4 105 SYLVAN ROAD 7120 8.7 10.2 85 13.4 14.4 93 TIMBER CREEK 7950 1.3 3.9 33 3.8 5.0 76 YOUNTS PEAK 8350 11.6 13.2 88 14.3 12.5 114 ----- ----- Basin wide percent of average 87 98 SHOSHONE RIVER BLACKWATER 9780 17.4 18.3 95 15.7 15.7 100 EVENING STAR 9200 20.0 22.3 90 22.0 19.7 112 KIRWIN 9550 7.7 8.3 93 8.3 8.4 99 MARQUETTE 8760 1.4 6.3 22 5.6 6.8 82 SYLVAN LAKE 8420 13.7 16.7 82 17.3 16.4 105 SYLVAN ROAD 7120 8.7 10.2 85 13.4 14.4 93 YOUNTS PEAK 8350 11.6 13.2 88 14.3 12.5 114 ----- ----- Basin wide percent of average 84 103 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.2 3.9 108 6.1 6.0 102 BIG GOOSE 7990 4.5 6.8 66 6.6 6.2 106 BONE SPRINGS DIV 9350 9.8 11.7 84 9.7 10.6 92 BURGESS JUNCTION 7880 7.2 8.1 89 8.5 8.7 98 CLOUD PEAK RESERVOIR 9860 9.7 8.9 109 8.8 9.0 98 DOME LAKE 8880 7.7 8.7 89 8.5 9.4 90 GRAVE SPRINGS 8550 7.3 6.5 112 9.3 7.1 131 HANSEN SAWMILL 8360 2.6 4.6 57 4.5 5.8 78 MIDDLE POWDER 7760 9.9 8.1 122 8.4 8.9 94 POWDER RIVER PASS 9480 7.4 7.9 94 8.8 9.2 96 SUCKER CREEK 8880 7.8 8.1 96 10.4 9.7 107 TIE CREEK 6870 3.8 4.5 84 7.8 7.3 107 ----- ----- Basin wide percent of average 93 99 BELLE FOURCHE BLIND PARK 6890 6.0 5.9 102 8.5 8.6 99 COLE CANYON 5910 3.9 4.5 87 6.8 -M * NORTH RAPID CREEK 6130 5.1 5.9 86 6.5 6.9 94 ----- ----- Basin wide percent of average 92 97 UPPER N. PLATTE RIVER COLUMBINE 9160 25.9 19.3 134 28.2 18.8 150 DIVIDE PEAK 8860 13.8 14.1 98 16.7 15.3 109 ELK RIVER 8700 16.0 14.2 113 17.0 14.4 118 JOE WRIGHT 10120 17.4 15.5 112 21.4 18.2 118 NORTH FRENCH CREEK 10130 27.3 20.3 134 26.4 18.3 144 OLD BATTLE 9920 29.4 23.0 128 33.5 25.4 132 SAGE CREEK BASIN 7850 9.3 8.2 113 11.8 8.9 133 SOUTH BRUSH CREEK 8440 9.6 8.6 112 13.6 12.1 112 TOWER 10500 42.2 33.8 125 -M 28.6 * WEBBER SPRINGS 9250 21.2 18.4 115 26.6 20.1 132 WILLOW CREEK PASS 9540 9.5 8.5 112 10.8 9.4 115 ----- ----- Basin wide percent of average 121 128 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 19.4 17.1 113 16.2 15.9 102 CASPER MTN. 7850 12.5 10.1 124 13.8 10.0 138 DEADMAN HILL 10220 12.1 11.7 103 13.5 11.9 113 DEER PARK 9700 13.0 13.7 95 15.9 16.1 99 LAPRELE CREEK 8375 7.1 8.0 89 8.0 9.1 88 RENO HILL 8500 11.9 9.3 128 13.4 10.4 129 ROACH 9700 11.9 12.5 95 14.9 13.3 112 SAND LAKE 10050 25.2 22.2 114 24.0 17.6 136 SOUTH PASS 9040 12.4 12.5 99 13.2 13.6 97 WINDY PEAK 7900 4.4 5.3 83 6.5 7.8 83 ----- ----- Basin wide percent of average 106 111 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.2 8.7 117 13.0 11.1 117 DIVIDE PEAK 8860 13.8 14.1 98 16.7 15.3 109 OLD BATTLE 9920 29.4 23.0 128 33.5 25.4 132 SANDSTONE RS 8150 12.1 11.1 109 17.3 14.1 123 WHISKEY PARK 8950 29.4 21.1 139 29.5 21.4 138 ----- ----- Basin wide percent of average 122 126 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.8 10.8 109 12.2 10.2 120 BLIND BULL SUM 8900 22.8 20.6 111 17.5 17.2 102 EAST RIM DIVIDE 7930 8.6 9.7 89 9.2 9.1 101 ELKHART PARK G.S. 9400 10.7 9.9 108 11.5 9.9 116 GROS VENTRE SUMMIT 8750 9.5 10.4 91 10.2 9.8 104 KENDALL R.S. 7740 11.5 11.0 105 12.4 11.1 112 LOOMIS PARK 8240 14.9 12.7 117 15.6 13.3 117 NEW FORK LAKE 8340 8.3 8.6 97 8.3 8.8 94 SNIDER BASIN 8060 14.3 11.1 129 14.0 12.4 113 SPRING CREEK DIVIDE 9000 25.9 19.7 131 -M 20.4 * TRIPLE PEAK 8500 24.7 18.6 133 25.3 18.4 138 ----- ----- Basin wide percent of average 114 113 LOWER GREEN RIVER HAMS FORK 7840 12.2 9.6 127 11.2 9.4 119 HEWINTA 9500 8.8 7.8 113 11.8 10.4 113 HICKERSON PARK 9100 3.0 5.1 59 5.2 5.7 91 HOLE-IN-ROCK 9150 5.2 4.9 106 6.0 5.3 113 INDIAN CREEK 9425 25.0 19.7 127 -M 19.0 * KELLEY R.S. 8180 16.4 12.2 134 18.0 15.6 115 STEEL CREEK PARK 10100 12.0 10.9 110 13.4 11.5 117 ----- ----- Basin wide percent of average 118 113 UPPER BEAR RIVER BUG LAKE 7950 19.8 15.1 131 17.5 14.6 120 HAYDEN FORK 9100 16.0 11.4 140 19.4 15.4 126 KELLEY R.S. 8180 16.4 12.2 134 18.0 15.6 115 LILY LAKE 9050 11.3 9.5 119 12.8 12.9 99 MONTE CRISTO 8960 25.5 21.4 119 24.9 18.9 132 SALT RIVER SUMMIT 7600 12.6 10.8 117 15.5 14.2 109 TRIAL LAKE 9960 23.3 18.0 129 22.7 18.1 125 ----- ----- Basin wide percent of average 127 119 ----------------------------------------------------------------------------- -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.