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: DECEMBER 2 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 2.7 4.2 64 6.3 6.2 102 COTTONWOOD CREEK 7600 5.3 4.9 108 8.3 8.2 101 GRANITE CREEK 6770 2.6 3.5 74 5.9 5.5 107 GRASSY LAKE 7265 6.0 7.9 76 12.9 9.8 132 GROS VENTRE SUMMIT 8750 3.6 4.0 90 5.1 4.4 116 LEWIS LAKE DIVIDE 7850 5.7 7.9 72 11.4 10.1 113 PHILLIPS BENCH 8200 4.7 6.6 71 9.1 7.6 120 SALT RIVER SUMMIT 7600 2.9 2.7 107 5.3 5.1 104 SNAKE RIVER STATION 6920 3.2 4.1 78 9.9 6.5 152 SPRING CREEK DIVIDE 9000 5.6 7.0 80 7.1 7.5 95 THUMB DIVIDE 7980 2.7 4.1 66 5.3 5.5 96 TOGWOTEE PASS 9580 5.7 7.2 79 7.1 7.5 95 TWO OCEAN PLATEAU 9240 6.8 8.5 80 7.9 8.4 94 WILLOW CREEK 8450 6.8 7.9 86 10.5 9.6 109 ----- ----- Basin wide percent of average 80 110 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.3 7.2 60 5.4 6.0 90 BLACK BEAR 8170 9.0 9.9 91 13.2 10.7 123 CANYON 8090 2.8 3.3 85 5.8 4.9 118 FISHER CREEK 9100 9.2 9.4 98 11.7 10.0 117 MADISON PLATEAU 7750 4.6 6.3 73 8.4 7.4 114 NORTHEAST ENTRANCE 7350 1.3 2.6 50 5.8 4.1 141 PARKER PEAK 9400 5.4 6.8 79 6.6 5.6 118 SYLVAN LAKE 8420 3.9 6.5 60 8.5 7.2 118 THUMB DIVIDE 7980 2.7 4.1 66 5.3 5.5 96 TWO OCEAN PLATEAU 9240 6.8 8.5 80 7.9 8.4 94 WHISKEY CREEK 6800 3.2 3.9 82 7.2 6.0 120 WHITE MILL 8700 5.4 6.8 79 8.0 7.9 101 WOLVERINE 7650 2.1 3.1 68 3.9 4.6 85 ----- ----- Basin wide percent of average 77 111 WIND RIVER BURROUGHS CREEK 8750 2.4 3.9 62 4.4 5.0 88 COLD SPRINGS 9630 1.3 3.2 41 2.7 4.2 64 DEER PARK 9700 4.2 4.6 91 6.0 7.2 83 HOBBS PARK 10100 3.0 5.4 56 3.3 4.7 70 LITTLE WARM 9370 2.4 3.5 69 3.3 4.7 70 SOUTH PASS 9040 4.2 5.0 84 5.9 6.1 97 ST. LAWRENCE ALT 8620 1.2 2.7 44 2.7 3.5 77 TOGWOTEE PASS 9580 5.7 7.2 79 7.1 7.5 95 TOWNSEND CREEK 8700 1.7 3.0 57 4.5 4.5 100 ----- ----- Basin wide percent of average 68 84 BIGHORN BASIN BALD MTN. 9380 7.2 6.0 120 5.5 5.4 102 BEAR TRAP MEADOW 8200 1.4 1.6 87 2.4 3.4 71 BLACKWATER 9780 5.9 8.0 74 6.5 7.3 89 BONE SPRINGS DIV 9350 6.7 5.4 124 5.0 5.0 100 EVENING STAR 9200 5.5 8.7 63 -M 8.4 * GRAVE SPRINGS 8550 1.9 2.7 70 2.9 3.6 81 KIRWIN 9550 2.8 4.3 65 3.5 4.2 83 MARQUETTE 8760 .1 3.8 3 2.9 4.1 71 MIDDLE POWDER 7760 2.9 3.6 81 3.7 5.0 74 OWL CREEK 8975 2.3 1.9 121 2.7 2.2 123 POWDER RIVER PASS 9480 3.4 3.4 100 3.9 4.2 93 SHELL CREEK 9580 6.5 5.2 125 4.8 4.6 104 SYLVAN LAKE 8420 3.9 6.5 60 8.5 7.2 118 SYLVAN ROAD 7120 1.6 3.6 44 6.6 6.7 99 TIMBER CREEK 7950 .2 2.3 9 2.9 3.0 97 YOUNTS PEAK 8350 2.3 4.8 48 4.5 5.3 85 ----- ----- Basin wide percent of average 76 93 SHOSHONE RIVER BLACKWATER 9780 5.9 8.0 74 6.5 7.3 89 EVENING STAR 9200 5.5 8.7 63 -M 8.4 * KIRWIN 9550 2.8 4.3 65 3.5 4.2 83 MARQUETTE 8760 .1 3.8 3 2.9 4.1 71 SYLVAN LAKE 8420 3.9 6.5 60 8.5 7.2 118 SYLVAN ROAD 7120 1.6 3.6 44 6.6 6.7 99 YOUNTS PEAK 8350 2.3 4.8 48 4.5 5.3 85 ----- ----- Basin wide percent of average 56 93 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.4 1.6 87 2.4 3.4 71 BIG GOOSE 7990 -M 2.4 * -M 3.0 * BONE SPRINGS DIV 9350 6.7 5.4 124 5.0 5.0 100 BURGESS JUNCTION 7880 2.8 3.6 78 4.3 4.3 100 CLOUD PEAK RESERVOIR 9860 3.3 3.9 85 3.1 4.9 63 DOME LAKE 8880 2.9 4.2 69 4.3 5.0 86 GRAVE SPRINGS 8550 1.9 2.7 70 2.9 3.6 81 HANSEN SAWMILL 8360 .5 2.0 25 1.6 3.2 50 MIDDLE POWDER 7760 2.9 3.6 81 3.7 5.0 74 POWDER RIVER PASS 9480 3.4 3.4 100 3.9 4.2 93 SUCKER CREEK 8880 3.6 3.3 109 4.5 4.6 98 TIE CREEK 6870 .3 1.2 25 4.3 3.7 116 ----- ----- Basin wide percent of average 85 85 BELLE FOURCHE BLIND PARK 6890 .6 2.0 30 3.2 4.6 70 COLE CANYON 5910 .7 1.9 37 3.7 -M * NORTH RAPID CREEK 6130 1.5 1.8 83 2.7 3.8 71 ----- ----- Basin wide percent of average 49 70 UPPER N. PLATTE RIVER COLUMBINE 9160 4.8 5.2 92 7.3 6.6 111 DIVIDE PEAK 8860 5.3 5.2 102 7.5 6.3 119 ELK RIVER 8700 4.2 3.2 131 6.3 5.3 119 JOE WRIGHT 10120 6.2 6.4 97 7.8 7.8 100 NORTH FRENCH CREEK 10130 7.5 8.1 93 8.4 7.6 111 OLD BATTLE 9920 8.6 9.2 93 10.3 9.5 108 SAGE CREEK BASIN 7850 3.9 3.1 126 5.8 3.7 157 SOUTH BRUSH CREEK 8440 3.1 3.0 103 4.9 5.3 92 TOWER 10500 10.2 12.9 79 12.0 10.8 111 WEBBER SPRINGS 9250 6.0 6.8 88 9.4 8.0 118 WILLOW CREEK PASS 9540 4.8 3.7 130 4.5 4.5 100 ----- ----- Basin wide percent of average 97 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 5.3 6.2 85 6.3 6.3 100 CASPER MTN. 7850 2.7 4.7 57 4.3 5.3 81 DEADMAN HILL 10220 5.3 5.1 104 5.4 5.4 100 DEER PARK 9700 4.2 4.6 91 6.0 7.2 83 LAPRELE CREEK 8375 2.2 3.3 67 3.2 4.4 73 RENO HILL 8500 3.8 4.4 86 4.9 5.2 94 ROACH 9700 5.5 4.4 125 7.1 5.3 134 SAND LAKE 10050 7.2 9.4 77 7.6 7.3 104 SOUTH PASS 9040 4.2 5.0 84 5.9 6.1 97 WINDY PEAK 7900 1.4 2.3 61 2.9 3.8 76 ----- ----- Basin wide percent of average 85 95 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .8 2.0 40 4.5 4.5 100 DIVIDE PEAK 8860 5.3 5.2 102 7.5 6.3 119 OLD BATTLE 9920 8.6 9.2 93 10.3 9.5 108 SANDSTONE RS 8150 2.3 2.5 92 5.2 5.6 93 WHISKEY PARK 8950 4.9 6.2 79 8.1 8.0 101 ----- ----- Basin wide percent of average 87 105 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.1 4.1 100 4.5 4.4 102 BLIND BULL SUM 8900 5.8 7.3 79 6.1 6.6 92 EAST RIM DIVIDE 7930 1.7 3.3 52 3.6 3.6 100 ELKHART PARK G.S. 9400 2.2 3.6 61 4.2 4.5 93 GROS VENTRE SUMMIT 8750 3.6 4.0 90 5.1 4.4 116 KENDALL R.S. 7740 1.7 3.3 52 4.2 4.2 100 LOOMIS PARK 8240 2.5 4.5 56 4.9 5.0 98 NEW FORK LAKE 8340 2.1 2.9 72 4.1 3.9 105 SNIDER BASIN 8060 3.2 3.7 86 4.8 4.6 104 SPRING CREEK DIVIDE 9000 5.6 7.0 80 7.1 7.5 95 TRIPLE PEAK 8500 5.5 6.5 85 8.2 6.7 122 ----- ----- Basin wide percent of average 76 103 LOWER GREEN RIVER HAMS FORK 7840 2.2 2.6 85 3.8 3.6 106 HEWINTA 9500 1.4 2.2 64 5.5 5.0 110 HICKERSON PARK 9100 .0 1.5 0 3.6 3.2 112 HOLE-IN-ROCK 9150 2.0 1.5 133 3.6 3.0 120 INDIAN CREEK 9425 5.8 6.9 84 6.4 7.2 89 KELLEY R.S. 8180 3.6 4.3 84 5.7 5.8 98 STEEL CREEK PARK 10100 4.0 4.1 98 5.4 5.3 102 ----- ----- Basin wide percent of average 82 103 UPPER BEAR RIVER BUG LAKE 7950 3.7 4.2 88 6.1 5.8 105 HAYDEN FORK 9100 3.2 3.2 100 8.6 6.2 139 KELLEY R.S. 8180 3.6 4.3 84 5.7 5.8 98 LILY LAKE 9050 3.6 3.0 120 6.6 5.8 114 MONTE CRISTO 8960 6.5 5.4 120 8.6 7.5 115 SALT RIVER SUMMIT 7600 2.9 2.7 107 5.3 5.1 104 TRIAL LAKE 9960 4.4 5.8 76 8.6 6.8 126 ----- ----- Basin wide percent of average 98 115 ----------------------------------------------------------------------------- -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.