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 THURSDAY: DECEMBER 15 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 5.9 5.9 100 9.5 8.0 119 COTTONWOOD CREEK 7600 6.5 6.9 94 9.9 10.5 94 GRANITE CREEK 6770 6.1 5.3 115 8.3 7.3 114 GRASSY LAKE 7265 10.5 10.8 97 15.0 13.1 115 GROS VENTRE SUMMIT 8750 4.6 5.3 87 -M 5.2 * LEWIS LAKE DIVIDE 7850 10.0 10.9 92 13.9 13.3 105 PHILLIPS BENCH 8200 9.0 9.3 97 11.0 10.2 108 SALT RIVER SUMMIT 7600 4.2 3.9 108 6.1 6.8 90 SNAKE RIVER STATION 6920 5.5 5.8 95 10.1 8.5 119 SPRING CREEK DIVIDE 9000 8.4 9.6 88 9.1 9.9 92 THUMB DIVIDE 7980 5.6 5.6 100 7.8 7.1 110 TOGWOTEE PASS 9580 10.0 9.1 110 10.6 9.4 113 TWO OCEAN PLATEAU 9240 14.8 10.7 138 12.5 10.6 118 WILLOW CREEK 8450 8.7 10.7 81 13.2 12.2 108 ----- ----- Basin wide percent of average 100 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 9.7 9.1 107 8.0 7.8 103 BLACK BEAR 8170 15.4 13.3 116 16.7 13.7 122 CANYON 8090 5.4 4.5 120 7.6 6.2 123 FISHER CREEK 9100 15.4 12.7 121 15.2 13.1 116 MADISON PLATEAU 7750 8.3 8.6 97 11.6 9.5 122 NORTHEAST ENTRANCE 7350 3.2 3.7 86 5.5 5.1 108 PARKER PEAK 9400 7.6 8.5 89 7.7 6.7 115 SYLVAN LAKE 8420 6.4 8.3 77 9.9 8.9 111 THUMB DIVIDE 7980 5.6 5.6 100 7.8 7.1 110 TWO OCEAN PLATEAU 9240 14.8 10.7 138 12.5 10.6 118 WHISKEY CREEK 6800 4.1 5.6 73 9.2 7.7 119 WHITE MILL 8700 8.9 8.9 100 8.9 10.0 89 WOLVERINE 7650 4.0 4.2 95 4.0 5.6 71 ----- ----- Basin wide percent of average 105 111 WIND RIVER BURROUGHS CREEK 8750 -M 5.2 * 7.2 6.3 114 COLD SPRINGS 9630 1.6 3.9 41 4.1 4.9 84 DEER PARK 9700 5.2 5.6 93 7.0 8.8 80 HOBBS PARK 10100 3.3 6.6 50 4.6 5.4 85 LITTLE WARM 9370 3.5 4.3 81 5.5 5.5 100 SOUTH PASS 9040 4.8 6.8 71 6.4 7.4 86 ST. LAWRENCE ALT 8620 .6 3.3 18 2.8 4.0 70 TOGWOTEE PASS 9580 10.0 9.1 110 10.6 9.4 113 TOWNSEND CREEK 8700 1.7 3.7 46 4.8 5.2 92 ----- ----- Basin wide percent of average 71 93 BIGHORN BASIN BALD MTN. 9380 7.0 7.7 91 5.4 6.7 81 BEAR TRAP MEADOW 8200 2.2 2.1 105 4.3 3.9 110 BLACKWATER 9780 9.1 9.9 92 8.0 8.8 91 BONE SPRINGS DIV 9350 6.7 6.4 105 6.5 6.0 108 EVENING STAR 9200 8.7 11.1 78 11.7 10.4 112 GRAVE SPRINGS 8550 3.4 3.1 110 5.5 4.2 131 KIRWIN 9550 5.4 5.1 106 5.7 4.9 116 MARQUETTE 8760 1.0 4.3 23 3.7 4.6 80 MIDDLE POWDER 7760 5.3 4.6 115 5.6 5.8 97 OWL CREEK 8975 .8 2.3 35 2.9 2.5 116 POWDER RIVER PASS 9480 4.0 4.2 95 5.5 5.0 110 SHELL CREEK 9580 5.8 6.0 97 5.7 5.5 104 SYLVAN LAKE 8420 6.4 8.3 77 9.9 8.9 111 SYLVAN ROAD 7120 3.8 4.9 78 8.0 8.2 98 TIMBER CREEK 7950 .9 2.6 35 3.3 3.3 100 YOUNTS PEAK 8350 -M 6.2 * 8.8 6.6 133 ----- ----- Basin wide percent of average 85 105 SHOSHONE RIVER BLACKWATER 9780 9.1 9.9 92 8.0 8.8 91 EVENING STAR 9200 8.7 11.1 78 11.7 10.4 112 KIRWIN 9550 5.4 5.1 106 5.7 4.9 116 MARQUETTE 8760 1.0 4.3 23 3.7 4.6 80 SYLVAN LAKE 8420 6.4 8.3 77 9.9 8.9 111 SYLVAN ROAD 7120 3.8 4.9 78 8.0 8.2 98 YOUNTS PEAK 8350 -M 6.2 * 8.8 6.6 133 ----- ----- Basin wide percent of average 79 106 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.2 2.1 105 4.3 3.9 110 BIG GOOSE 7990 2.5 3.3 76 4.6 3.7 124 BONE SPRINGS DIV 9350 6.7 6.4 105 6.5 6.0 108 BURGESS JUNCTION 7880 4.8 4.4 109 6.2 5.1 122 CLOUD PEAK RESERVOIR 9860 5.2 4.6 113 5.4 5.6 96 DOME LAKE 8880 5.0 5.0 100 6.0 5.8 103 GRAVE SPRINGS 8550 3.4 3.1 110 5.5 4.2 131 HANSEN SAWMILL 8360 1.5 2.6 58 3.3 3.7 89 MIDDLE POWDER 7760 5.3 4.6 115 5.6 5.8 97 POWDER RIVER PASS 9480 4.0 4.2 95 5.5 5.0 110 SUCKER CREEK 8880 4.7 4.1 115 7.0 5.5 127 TIE CREEK 6870 2.7 1.5 180 6.0 4.3 140 ----- ----- Basin wide percent of average 105 112 BELLE FOURCHE BLIND PARK 6890 2.8 2.5 112 4.5 5.3 85 COLE CANYON 5910 2.2 2.4 92 4.2 -M * NORTH RAPID CREEK 6130 2.6 2.4 108 3.7 4.5 82 ----- ----- Basin wide percent of average 104 84 UPPER N. PLATTE RIVER COLUMBINE 9160 11.2 7.1 158 14.5 8.7 167 DIVIDE PEAK 8860 6.0 6.9 87 9.5 7.9 120 ELK RIVER 8700 5.4 4.8 113 8.5 6.9 123 JOE WRIGHT 10120 10.1 7.7 131 12.1 9.6 126 NORTH FRENCH CREEK 10130 11.6 10.3 113 12.6 9.5 133 OLD BATTLE 9920 12.7 11.8 108 16.0 12.3 130 SAGE CREEK BASIN 7850 3.3 4.0 82 6.2 4.6 135 SOUTH BRUSH CREEK 8440 4.6 3.9 118 8.0 6.4 125 TOWER 10500 18.7 16.3 115 21.2 13.9 153 WEBBER SPRINGS 9250 -M 8.9 * -M 10.1 * WILLOW CREEK PASS 9540 5.9 4.5 131 6.7 5.3 126 ----- ----- Basin wide percent of average 116 135 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 8.8 8.1 109 6.8 8.0 85 CASPER MTN. 7850 4.3 5.7 75 7.2 6.1 118 DEADMAN HILL 10220 6.9 6.2 111 8.4 6.5 129 DEER PARK 9700 5.2 5.6 93 7.0 8.8 80 LAPRELE CREEK 8375 2.4 4.2 57 3.7 5.2 71 RENO HILL 8500 5.2 5.4 96 6.8 6.0 113 ROACH 9700 6.2 5.6 111 8.8 6.7 131 SAND LAKE 10050 13.0 11.9 109 13.3 9.2 145 SOUTH PASS 9040 4.8 6.8 71 6.4 7.4 86 WINDY PEAK 7900 1.9 2.9 66 3.8 4.5 84 ----- ----- Basin wide percent of average 94 106 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.4 2.6 169 7.2 5.6 129 DIVIDE PEAK 8860 6.0 6.9 87 9.5 7.9 120 OLD BATTLE 9920 12.7 11.8 108 16.0 12.3 130 SANDSTONE RS 8150 4.5 3.5 129 9.3 7.0 133 WHISKEY PARK 8950 10.2 8.2 124 13.6 10.2 133 ----- ----- Basin wide percent of average 115 129 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.3 5.4 61 4.1 5.3 77 BLIND BULL SUM 8900 7.6 9.9 77 7.2 8.5 85 EAST RIM DIVIDE 7930 3.4 4.5 76 4.2 4.5 93 ELKHART PARK G.S. 9400 4.5 4.8 94 5.4 5.4 100 GROS VENTRE SUMMIT 8750 4.6 5.3 87 -M 5.2 * KENDALL R.S. 7740 4.1 4.8 85 5.7 5.4 106 LOOMIS PARK 8240 5.6 6.1 92 6.6 6.4 103 NEW FORK LAKE 8340 3.4 4.0 85 3.7 4.7 79 SNIDER BASIN 8060 5.3 5.2 102 5.6 6.0 93 SPRING CREEK DIVIDE 9000 8.4 9.6 88 9.1 9.9 92 TRIPLE PEAK 8500 8.6 8.9 97 10.3 8.6 120 ----- ----- Basin wide percent of average 86 96 LOWER GREEN RIVER HAMS FORK 7840 3.4 3.8 89 4.2 4.5 93 HEWINTA 9500 4.0 2.9 138 6.6 5.8 114 HICKERSON PARK 9100 .9 2.1 43 3.4 3.7 92 HOLE-IN-ROCK 9150 2.7 2.0 135 3.8 3.4 112 INDIAN CREEK 9425 8.7 9.4 93 8.3 9.3 89 KELLEY R.S. 8180 4.8 5.8 83 6.5 7.7 84 STEEL CREEK PARK 10100 5.2 5.2 100 6.9 6.3 110 ----- ----- Basin wide percent of average 95 98 UPPER BEAR RIVER BUG LAKE 7950 5.6 5.8 97 6.9 7.3 95 HAYDEN FORK 9100 -M 4.4 * -M 7.9 * KELLEY R.S. 8180 4.8 5.8 83 6.5 7.7 84 LILY LAKE 9050 4.7 4.0 118 6.5 7.0 93 MONTE CRISTO 8960 7.9 7.6 104 9.6 9.5 101 SALT RIVER SUMMIT 7600 4.2 3.9 108 6.1 6.8 90 TRIAL LAKE 9960 8.8 7.7 114 9.8 8.7 113 ----- ----- Basin wide percent of average 103 97 ----------------------------------------------------------------------------- -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.