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 SATURDAY: FEBRUARY 18 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 17.3 14.7 118 21.5 17.1 126 COTTONWOOD CREEK 7600 23.4 16.5 142 25.7 21.3 121 GRANITE CREEK 6770 17.7 14.6 121 19.9 15.9 125 GRASSY LAKE 7265 30.1 26.9 112 33.9 28.6 119 GROS VENTRE SUMMIT 8750 9.6 10.6 91 10.9 10.0 109 LEWIS LAKE DIVIDE 7850 33.1 27.1 122 32.6 28.9 113 PHILLIPS BENCH 8200 25.6 21.7 118 26.8 22.6 119 SALT RIVER SUMMIT 7600 12.8 11.1 115 15.7 14.5 108 SNAKE RIVER STATION 6920 16.8 15.0 112 21.7 18.0 121 SPRING CREEK DIVIDE 9000 26.0 20.2 129 -M 20.9 * THUMB DIVIDE 7980 14.1 13.9 101 14.4 14.7 98 TOGWOTEE PASS 9580 19.7 19.2 103 20.4 19.2 106 TWO OCEAN PLATEAU 9240 29.2 21.6 135 23.3 21.5 108 WILLOW CREEK 8450 27.9 23.3 120 31.9 25.0 128 ----- ----- Basin wide percent of average 118 116 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 17.3 18.5 94 15.1 15.9 95 BLACK BEAR 8170 39.4 29.9 132 -M 30.5 * CANYON 8090 12.0 10.4 115 14.1 12.1 117 FISHER CREEK 9100 32.1 27.2 118 29.7 28.2 105 MADISON PLATEAU 7750 21.1 19.0 111 24.6 20.3 121 NORTHEAST ENTRANCE 7350 8.0 9.0 89 10.2 10.1 101 PARKER PEAK 9400 15.0 16.8 89 13.7 12.7 108 SYLVAN LAKE 8420 13.7 17.1 80 17.3 16.7 104 THUMB DIVIDE 7980 14.1 13.9 101 14.4 14.7 98 TWO OCEAN PLATEAU 9240 29.2 21.6 135 23.3 21.5 108 WHISKEY CREEK 6800 12.5 13.1 95 18.9 16.0 118 WHITE MILL 8700 20.4 18.6 110 17.8 21.0 85 WOLVERINE 7650 9.1 9.9 92 7.5 10.4 72 ----- ----- Basin wide percent of average 108 104 WIND RIVER BURROUGHS CREEK 8750 11.1 11.6 96 13.4 12.8 105 COLD SPRINGS 9630 3.8 6.6 58 6.6 7.9 84 DEER PARK 9700 13.5 13.8 98 15.9 16.5 96 HOBBS PARK 10100 8.0 11.0 73 8.5 9.2 92 LITTLE WARM 9370 6.8 8.7 78 9.6 10.2 94 SOUTH PASS 9040 12.9 12.8 101 14.1 13.9 101 ST. LAWRENCE ALT 8620 2.0 5.4 37 4.8 6.5 74 TOGWOTEE PASS 9580 19.7 19.2 103 20.4 19.2 106 TOWNSEND CREEK 8700 4.4 6.4 69 7.8 8.3 94 ----- ----- Basin wide percent of average 86 97 BIGHORN BASIN BALD MTN. 9380 11.9 14.8 80 8.9 13.2 67 BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.0 105 BLACKWATER 9780 17.6 18.8 94 15.8 16.0 99 BONE SPRINGS DIV 9350 10.2 12.0 85 9.6 10.8 89 EVENING STAR 9200 20.0 22.9 87 22.2 20.2 110 GRAVE SPRINGS 8550 7.3 6.7 109 9.6 7.2 133 KIRWIN 9550 7.9 8.5 93 8.4 8.6 98 MARQUETTE 8760 2.6 6.4 41 5.8 7.0 83 MIDDLE POWDER 7760 10.1 8.3 122 8.8 9.1 97 OWL CREEK 8975 2.1 3.8 55 3.9 4.1 95 POWDER RIVER PASS 9480 7.7 8.1 95 9.0 9.3 97 SHELL CREEK 9580 10.1 10.9 93 9.6 10.2 94 SYLVAN LAKE 8420 13.7 17.1 80 17.3 16.7 104 SYLVAN ROAD 7120 8.7 10.5 83 12.6 14.7 86 TIMBER CREEK 7950 1.1 4.0 28 4.3 5.0 86 YOUNTS PEAK 8350 -M 13.5 * 14.0 12.7 110 ----- ----- Basin wide percent of average 86 97 SHOSHONE RIVER BLACKWATER 9780 17.6 18.8 94 15.8 16.0 99 EVENING STAR 9200 20.0 22.9 87 22.2 20.2 110 KIRWIN 9550 7.9 8.5 93 8.4 8.6 98 MARQUETTE 8760 2.6 6.4 41 5.8 7.0 83 SYLVAN LAKE 8420 13.7 17.1 80 17.3 16.7 104 SYLVAN ROAD 7120 8.7 10.5 83 12.6 14.7 86 YOUNTS PEAK 8350 -M 13.5 * 14.0 12.7 110 ----- ----- Basin wide percent of average 84 100 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.0 105 BIG GOOSE 7990 4.4 7.0 63 6.6 6.4 103 BONE SPRINGS DIV 9350 10.2 12.0 85 9.6 10.8 89 BURGESS JUNCTION 7880 7.3 8.3 88 8.5 8.9 96 CLOUD PEAK RESERVOIR 9860 -M 9.1 * 8.5 9.2 92 DOME LAKE 8880 7.6 8.9 85 8.7 9.6 91 GRAVE SPRINGS 8550 7.3 6.7 109 9.6 7.2 133 HANSEN SAWMILL 8360 2.7 4.7 57 4.7 5.9 80 MIDDLE POWDER 7760 10.1 8.3 122 8.8 9.1 97 POWDER RIVER PASS 9480 7.7 8.1 95 9.0 9.3 97 SUCKER CREEK 8880 7.8 8.3 94 10.5 9.8 107 TIE CREEK 6870 4.0 4.6 87 8.1 7.5 108 ----- ----- Basin wide percent of average 91 99 BELLE FOURCHE BLIND PARK 6890 6.1 6.2 98 9.0 8.7 103 COLE CANYON 5910 3.6 4.6 78 8.5 -M * NORTH RAPID CREEK 6130 5.2 6.1 85 7.2 7.0 103 ----- ----- Basin wide percent of average 88 103 UPPER N. PLATTE RIVER COLUMBINE 9160 25.8 19.9 130 27.7 19.2 144 DIVIDE PEAK 8860 14.0 14.4 97 16.8 15.7 107 ELK RIVER 8700 16.1 14.6 110 16.9 14.8 114 JOE WRIGHT 10120 17.6 15.9 111 21.3 18.6 115 NORTH FRENCH CREEK 10130 27.5 20.8 132 26.4 18.7 141 OLD BATTLE 9920 29.7 23.7 125 33.3 26.1 128 SAGE CREEK BASIN 7850 9.9 8.4 118 11.9 9.1 131 SOUTH BRUSH CREEK 8440 9.9 8.9 111 13.6 12.4 110 TOWER 10500 42.5 34.6 123 -M 29.3 * WEBBER SPRINGS 9250 21.3 19.0 112 26.8 20.5 131 WILLOW CREEK PASS 9540 9.8 8.7 113 10.7 9.6 111 ----- ----- Basin wide percent of average 119 125 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 19.7 17.5 113 16.4 16.2 101 CASPER MTN. 7850 13.3 10.4 128 14.2 10.2 139 DEADMAN HILL 10220 12.3 12.0 103 13.8 12.2 113 DEER PARK 9700 13.5 13.8 98 15.9 16.5 96 LAPRELE CREEK 8375 7.9 8.2 96 8.7 9.3 94 RENO HILL 8500 12.8 9.5 135 13.8 10.6 130 ROACH 9700 11.9 12.8 93 14.7 13.6 108 SAND LAKE 10050 25.5 22.8 112 24.3 18.0 135 SOUTH PASS 9040 12.9 12.8 101 14.1 13.9 101 WINDY PEAK 7900 5.4 5.5 98 7.6 7.9 96 ----- ----- Basin wide percent of average 108 112 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.6 8.9 119 13.0 11.4 114 DIVIDE PEAK 8860 14.0 14.4 97 16.8 15.7 107 OLD BATTLE 9920 29.7 23.7 125 33.3 26.1 128 SANDSTONE RS 8150 12.1 11.4 106 17.5 14.4 122 WHISKEY PARK 8950 29.9 21.7 138 29.4 21.8 135 ----- ----- Basin wide percent of average 120 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.9 11.1 107 12.2 10.4 117 BLIND BULL SUM 8900 23.0 21.1 109 17.7 17.6 101 EAST RIM DIVIDE 7930 8.9 10.0 89 9.7 9.4 103 ELKHART PARK G.S. 9400 11.1 10.2 109 11.9 10.1 118 GROS VENTRE SUMMIT 8750 9.6 10.6 91 10.9 10.0 109 KENDALL R.S. 7740 11.5 11.3 102 13.1 11.4 115 LOOMIS PARK 8240 15.4 13.1 118 16.0 13.6 118 NEW FORK LAKE 8340 8.8 8.8 100 8.5 8.9 96 SNIDER BASIN 8060 14.7 11.4 129 14.0 12.7 110 SPRING CREEK DIVIDE 9000 26.0 20.2 129 -M 20.9 * TRIPLE PEAK 8500 24.8 19.1 130 25.2 18.9 133 ----- ----- Basin wide percent of average 113 113 LOWER GREEN RIVER HAMS FORK 7840 12.3 9.9 124 11.6 9.6 121 HEWINTA 9500 9.1 8.1 112 12.2 10.7 114 HICKERSON PARK 9100 2.8 5.2 54 5.4 5.8 93 HOLE-IN-ROCK 9150 5.2 5.1 102 6.2 5.4 115 INDIAN CREEK 9425 25.4 20.3 125 -M 19.4 * KELLEY R.S. 8180 16.5 12.6 131 18.2 15.9 114 STEEL CREEK PARK 10100 12.3 11.3 109 13.7 11.8 116 ----- ----- Basin wide percent of average 115 114 UPPER BEAR RIVER BUG LAKE 7950 20.3 15.5 131 17.6 14.9 118 HAYDEN FORK 9100 -M 11.8 * -M 15.7 * KELLEY R.S. 8180 16.5 12.6 131 18.2 15.9 114 LILY LAKE 9050 11.6 9.8 118 13.1 13.2 99 MONTE CRISTO 8960 25.8 22.1 117 24.8 19.4 128 SALT RIVER SUMMIT 7600 12.8 11.1 115 15.7 14.5 108 TRIAL LAKE 9960 23.3 18.6 125 23.0 18.7 123 ----- ----- Basin wide percent of average 123 116 ----------------------------------------------------------------------------- -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.