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: DECEMBER 13 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 5.8 5.6 104 9.5 7.8 122 COTTONWOOD CREEK 7600 6.4 6.6 97 9.8 10.1 97 GRANITE CREEK 6770 6.1 5.0 122 8.4 7.0 120 GRASSY LAKE 7265 10.2 10.4 98 14.7 12.6 117 GROS VENTRE SUMMIT 8750 4.6 5.1 90 5.8 5.1 114 LEWIS LAKE DIVIDE 7850 10.2 10.4 98 14.0 12.8 109 PHILLIPS BENCH 8200 8.9 8.9 100 11.0 9.8 112 SALT RIVER SUMMIT 7600 4.2 3.7 114 6.2 6.5 95 SNAKE RIVER STATION 6920 5.4 5.5 98 10.0 8.2 122 SPRING CREEK DIVIDE 9000 8.6 9.2 93 9.2 9.5 97 THUMB DIVIDE 7980 5.7 5.4 106 8.0 6.8 118 TOGWOTEE PASS 9580 10.0 8.8 114 10.6 9.1 116 TWO OCEAN PLATEAU 9240 14.9 10.4 143 12.4 10.3 120 WILLOW CREEK 8450 8.4 10.3 82 13.0 11.8 110 ----- ----- Basin wide percent of average 104 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 9.8 8.8 111 8.2 7.5 109 BLACK BEAR 8170 15.2 12.8 119 16.6 13.2 126 CANYON 8090 5.3 4.3 123 7.5 6.0 125 FISHER CREEK 9100 15.3 12.2 125 15.2 12.6 121 MADISON PLATEAU 7750 8.3 8.2 101 11.7 9.2 127 NORTHEAST ENTRANCE 7350 3.2 3.5 91 5.4 4.9 110 PARKER PEAK 9400 7.5 8.2 91 7.7 6.5 118 SYLVAN LAKE 8420 6.2 8.0 78 9.6 8.6 112 THUMB DIVIDE 7980 5.7 5.4 106 8.0 6.8 118 TWO OCEAN PLATEAU 9240 14.9 10.4 143 12.4 10.3 120 WHISKEY CREEK 6800 4.1 5.3 77 9.1 7.4 123 WHITE MILL 8700 8.8 8.6 102 9.1 9.7 94 WOLVERINE 7650 3.9 4.0 98 4.3 5.5 78 ----- ----- Basin wide percent of average 109 115 WIND RIVER BURROUGHS CREEK 8750 4.0 5.0 80 7.6 6.1 125 COLD SPRINGS 9630 1.8 3.8 47 4.2 4.8 88 DEER PARK 9700 5.4 5.4 100 7.1 8.6 83 HOBBS PARK 10100 3.4 6.4 53 4.8 5.3 91 LITTLE WARM 9370 3.7 4.2 88 5.6 5.4 104 SOUTH PASS 9040 5.1 6.5 78 6.4 7.2 89 ST. LAWRENCE ALT 8620 .7 3.2 22 2.8 3.9 72 TOGWOTEE PASS 9580 10.0 8.8 114 10.6 9.1 116 TOWNSEND CREEK 8700 2.2 3.6 61 4.9 5.1 96 ----- ----- Basin wide percent of average 77 97 BIGHORN BASIN BALD MTN. 9380 6.1 7.4 82 5.1 6.5 78 BEAR TRAP MEADOW 8200 2.1 2.0 105 4.1 3.8 108 BLACKWATER 9780 9.1 9.6 95 8.2 8.6 95 BONE SPRINGS DIV 9350 6.2 6.2 100 6.3 5.8 109 EVENING STAR 9200 8.7 10.7 81 11.9 10.1 118 GRAVE SPRINGS 8550 2.8 3.0 93 5.0 4.1 122 KIRWIN 9550 5.5 5.0 110 5.9 4.8 123 MARQUETTE 8760 1.2 4.2 29 4.0 4.6 87 MIDDLE POWDER 7760 4.6 4.4 105 5.6 5.6 100 OWL CREEK 8975 1.0 2.2 45 3.5 2.5 140 POWDER RIVER PASS 9480 3.4 4.1 83 5.4 4.8 113 SHELL CREEK 9580 5.4 5.9 92 5.3 5.4 98 SYLVAN LAKE 8420 6.2 8.0 78 9.6 8.6 112 SYLVAN ROAD 7120 3.6 4.7 77 7.8 8.0 98 TIMBER CREEK 7950 1.0 2.6 38 3.2 3.3 97 YOUNTS PEAK 8350 -M 6.0 * 9.0 6.4 141 ----- ----- Basin wide percent of average 84 108 SHOSHONE RIVER BLACKWATER 9780 9.1 9.6 95 8.2 8.6 95 EVENING STAR 9200 8.7 10.7 81 11.9 10.1 118 KIRWIN 9550 5.5 5.0 110 5.9 4.8 123 MARQUETTE 8760 1.2 4.2 29 4.0 4.6 87 SYLVAN LAKE 8420 6.2 8.0 78 9.6 8.6 112 SYLVAN ROAD 7120 3.6 4.7 77 7.8 8.0 98 YOUNTS PEAK 8350 -M 6.0 * 9.0 6.4 141 ----- ----- Basin wide percent of average 81 110 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.1 2.0 105 4.1 3.8 108 BIG GOOSE 7990 2.5 3.2 78 4.6 3.6 128 BONE SPRINGS DIV 9350 6.2 6.2 100 6.3 5.8 109 BURGESS JUNCTION 7880 4.4 4.3 102 6.1 4.9 124 CLOUD PEAK RESERVOIR 9860 4.7 4.5 104 5.7 5.5 104 DOME LAKE 8880 4.7 4.9 96 5.6 5.7 98 GRAVE SPRINGS 8550 2.8 3.0 93 5.0 4.1 122 HANSEN SAWMILL 8360 1.6 2.5 64 3.4 3.6 94 MIDDLE POWDER 7760 4.6 4.4 105 5.6 5.6 100 POWDER RIVER PASS 9480 3.4 4.1 83 5.4 4.8 113 SUCKER CREEK 8880 3.9 4.0 98 6.4 5.4 119 TIE CREEK 6870 2.4 1.5 160 5.7 4.2 136 ----- ----- Basin wide percent of average 97 112 BELLE FOURCHE BLIND PARK 6890 2.0 2.4 83 3.6 5.2 69 COLE CANYON 5910 1.8 2.3 78 4.2 -M * NORTH RAPID CREEK 6130 2.3 2.3 100 3.4 4.4 77 ----- ----- Basin wide percent of average 87 73 UPPER N. PLATTE RIVER COLUMBINE 9160 10.2 6.8 150 14.0 8.4 167 DIVIDE PEAK 8860 5.9 6.6 89 9.5 7.7 123 ELK RIVER 8700 4.8 4.6 104 8.5 6.6 129 JOE WRIGHT 10120 9.7 7.5 129 12.0 9.3 129 NORTH FRENCH CREEK 10130 11.0 10.0 110 12.2 9.2 133 OLD BATTLE 9920 12.6 11.4 111 16.1 11.9 135 SAGE CREEK BASIN 7850 3.3 3.9 85 6.0 4.5 133 SOUTH BRUSH CREEK 8440 4.4 3.8 116 8.0 6.2 129 TOWER 10500 17.5 15.8 111 20.5 13.4 153 WEBBER SPRINGS 9250 -M 8.6 * -M 9.8 * WILLOW CREEK PASS 9540 5.7 4.4 130 6.7 5.2 129 ----- ----- Basin wide percent of average 114 138 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 8.8 7.8 113 6.7 7.7 87 CASPER MTN. 7850 4.3 5.5 78 7.1 6.0 118 DEADMAN HILL 10220 6.8 6.0 113 8.3 6.3 132 DEER PARK 9700 5.4 5.4 100 7.1 8.6 83 LAPRELE CREEK 8375 2.1 4.1 51 3.8 5.0 76 RENO HILL 8500 4.9 5.2 94 6.5 5.9 110 ROACH 9700 6.1 5.4 113 8.9 6.5 137 SAND LAKE 10050 12.7 11.5 110 13.0 8.9 146 SOUTH PASS 9040 5.1 6.5 78 6.4 7.2 89 WINDY PEAK 7900 1.9 2.8 68 3.6 4.4 82 ----- ----- Basin wide percent of average 97 107 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.3 2.5 172 7.4 5.4 137 DIVIDE PEAK 8860 5.9 6.6 89 9.5 7.7 123 OLD BATTLE 9920 12.6 11.4 111 16.1 11.9 135 SANDSTONE RS 8150 4.3 3.3 130 9.1 6.8 134 WHISKEY PARK 8950 9.8 7.9 124 13.3 9.9 134 ----- ----- Basin wide percent of average 116 133 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.4 5.2 65 4.4 5.2 85 BLIND BULL SUM 8900 7.8 9.5 82 7.2 8.2 88 EAST RIM DIVIDE 7930 3.5 4.3 81 4.3 4.4 98 ELKHART PARK G.S. 9400 4.6 4.6 100 5.5 5.3 104 GROS VENTRE SUMMIT 8750 4.6 5.1 90 5.8 5.1 114 KENDALL R.S. 7740 4.3 4.6 93 5.7 5.2 110 LOOMIS PARK 8240 5.7 5.9 97 6.7 6.2 108 NEW FORK LAKE 8340 3.5 3.8 92 3.8 4.6 83 SNIDER BASIN 8060 5.3 5.0 106 5.7 5.8 98 SPRING CREEK DIVIDE 9000 8.6 9.2 93 9.2 9.5 97 TRIPLE PEAK 8500 8.6 8.5 101 10.3 8.3 124 ----- ----- Basin wide percent of average 91 101 LOWER GREEN RIVER HAMS FORK 7840 3.5 3.6 97 4.3 4.4 98 HEWINTA 9500 4.0 2.8 143 6.6 5.7 116 HICKERSON PARK 9100 1.1 2.0 55 3.4 3.6 94 HOLE-IN-ROCK 9150 3.0 1.9 158 3.8 3.3 115 INDIAN CREEK 9425 8.7 9.0 97 8.4 9.0 93 KELLEY R.S. 8180 4.9 5.6 88 6.6 7.4 89 STEEL CREEK PARK 10100 5.1 5.0 102 7.0 6.1 115 ----- ----- Basin wide percent of average 101 102 UPPER BEAR RIVER BUG LAKE 7950 5.7 5.6 102 7.1 7.1 100 HAYDEN FORK 9100 -M 4.2 * -M 7.6 * KELLEY R.S. 8180 4.9 5.6 88 6.6 7.4 89 LILY LAKE 9050 4.7 3.8 124 6.5 6.8 96 MONTE CRISTO 8960 8.1 7.3 111 9.6 9.2 104 SALT RIVER SUMMIT 7600 4.2 3.7 114 6.2 6.5 95 TRIAL LAKE 9960 8.8 7.4 119 9.7 8.4 115 ----- ----- Basin wide percent of average 109 101 ----------------------------------------------------------------------------- -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.