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 24 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 6.8 7.1 96 10.4 9.3 112 COTTONWOOD CREEK 7600 8.3 8.4 99 11.6 12.1 96 GRANITE CREEK 6770 6.8 6.5 105 9.5 8.4 113 GRASSY LAKE 7265 12.6 12.9 98 17.4 15.3 114 GROS VENTRE SUMMIT 8750 5.1 6.1 84 6.2 5.9 105 LEWIS LAKE DIVIDE 7850 12.6 13.0 97 16.1 15.5 104 PHILLIPS BENCH 8200 10.5 11.0 95 12.4 11.9 104 SALT RIVER SUMMIT 7600 5.2 4.7 111 7.1 8.0 89 SNAKE RIVER STATION 6920 6.5 6.9 94 11.4 9.8 116 SPRING CREEK DIVIDE 9000 10.5 11.1 95 10.9 11.5 95 THUMB DIVIDE 7980 6.8 6.7 101 8.9 8.1 110 TOGWOTEE PASS 9580 11.0 10.5 105 11.7 10.8 108 TWO OCEAN PLATEAU 9240 16.0 12.2 131 13.6 12.1 112 WILLOW CREEK 8450 10.6 12.6 84 15.0 13.9 108 ----- ----- Basin wide percent of average 100 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 10.6 10.4 102 8.8 8.9 99 BLACK BEAR 8170 18.0 15.4 117 19.3 15.8 122 CANYON 8090 5.9 5.3 111 8.2 7.0 117 FISHER CREEK 9100 17.6 14.6 121 17.3 15.2 114 MADISON PLATEAU 7750 9.4 10.0 94 12.9 11.1 116 NORTHEAST ENTRANCE 7350 3.7 4.4 84 6.0 5.8 103 PARKER PEAK 9400 8.9 9.6 93 8.8 7.5 117 SYLVAN LAKE 8420 7.2 9.5 76 10.7 10.0 107 THUMB DIVIDE 7980 6.8 6.7 101 8.9 8.1 110 TWO OCEAN PLATEAU 9240 16.0 12.2 131 13.6 12.1 112 WHISKEY CREEK 6800 4.8 6.6 73 9.7 8.9 109 WHITE MILL 8700 10.3 10.1 102 10.4 11.5 90 WOLVERINE 7650 4.4 5.0 88 4.5 6.4 70 ----- ----- Basin wide percent of average 103 108 WIND RIVER BURROUGHS CREEK 8750 -M 6.0 * 8.2 7.2 114 COLD SPRINGS 9630 2.0 4.3 47 4.4 5.3 83 DEER PARK 9700 5.6 6.2 90 7.5 9.9 76 HOBBS PARK 10100 3.6 7.1 51 4.8 5.9 81 LITTLE WARM 9370 3.9 4.8 81 5.9 6.2 95 SOUTH PASS 9040 5.3 7.5 71 6.8 8.4 81 ST. LAWRENCE ALT 8620 .7 3.6 19 2.9 4.3 67 TOGWOTEE PASS 9580 11.0 10.5 105 11.7 10.8 108 TOWNSEND CREEK 8700 2.2 4.1 54 4.8 5.6 86 ----- ----- Basin wide percent of average 71 90 BIGHORN BASIN BALD MTN. 9380 7.2 8.8 82 5.8 7.7 75 BEAR TRAP MEADOW 8200 2.5 2.4 104 4.4 4.2 105 BLACKWATER 9780 10.0 11.0 91 8.8 9.9 89 BONE SPRINGS DIV 9350 6.8 7.1 96 6.8 6.7 101 EVENING STAR 9200 10.3 12.5 82 12.8 11.8 108 GRAVE SPRINGS 8550 3.7 3.6 103 6.1 4.6 133 KIRWIN 9550 5.8 5.5 105 6.2 5.4 115 MARQUETTE 8760 1.1 4.7 23 4.1 5.0 82 MIDDLE POWDER 7760 5.5 5.1 108 5.9 6.3 94 OWL CREEK 8975 1.1 2.5 44 3.4 2.7 126 POWDER RIVER PASS 9480 4.2 4.8 88 6.0 5.5 109 SHELL CREEK 9580 5.9 6.7 88 5.8 6.1 95 SYLVAN LAKE 8420 7.2 9.5 76 10.7 10.0 107 SYLVAN ROAD 7120 4.3 5.6 77 8.7 9.2 95 TIMBER CREEK 7950 1.0 2.8 36 3.1 3.5 89 YOUNTS PEAK 8350 -M 7.1 * 9.5 7.4 128 ----- ----- Basin wide percent of average 83 102 SHOSHONE RIVER BLACKWATER 9780 10.0 11.0 91 8.8 9.9 89 EVENING STAR 9200 10.3 12.5 82 12.8 11.8 108 KIRWIN 9550 5.8 5.5 105 6.2 5.4 115 MARQUETTE 8760 1.1 4.7 23 4.1 5.0 82 SYLVAN LAKE 8420 7.2 9.5 76 10.7 10.0 107 SYLVAN ROAD 7120 4.3 5.6 77 8.7 9.2 95 YOUNTS PEAK 8350 -M 7.1 * 9.5 7.4 128 ----- ----- Basin wide percent of average 79 104 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.5 2.4 104 4.4 4.2 105 BIG GOOSE 7990 2.6 3.9 67 4.8 4.1 117 BONE SPRINGS DIV 9350 6.8 7.1 96 6.8 6.7 101 BURGESS JUNCTION 7880 5.0 5.0 100 6.4 5.6 114 CLOUD PEAK RESERVOIR 9860 5.4 5.2 104 5.9 6.0 98 DOME LAKE 8880 5.2 5.6 93 6.0 6.4 94 GRAVE SPRINGS 8550 3.7 3.6 103 6.1 4.6 133 HANSEN SAWMILL 8360 1.8 3.0 60 3.5 4.0 88 MIDDLE POWDER 7760 5.5 5.1 108 5.9 6.3 94 POWDER RIVER PASS 9480 4.2 4.8 88 6.0 5.5 109 SUCKER CREEK 8880 4.8 4.7 102 7.2 6.1 118 TIE CREEK 6870 2.8 2.0 140 6.1 4.7 130 ----- ----- Basin wide percent of average 96 108 BELLE FOURCHE BLIND PARK 6890 3.7 3.0 123 5.5 5.8 95 COLE CANYON 5910 2.7 2.7 100 4.5 -M * NORTH RAPID CREEK 6130 3.3 2.9 114 4.5 4.9 92 ----- ----- Basin wide percent of average 113 93 UPPER N. PLATTE RIVER COLUMBINE 9160 13.9 8.6 162 17.2 10.2 169 DIVIDE PEAK 8860 7.3 8.1 90 10.8 9.0 120 ELK RIVER 8700 7.2 6.1 118 10.2 7.9 129 JOE WRIGHT 10120 11.9 8.8 135 14.7 10.8 136 NORTH FRENCH CREEK 10130 14.6 11.9 123 15.7 10.8 145 OLD BATTLE 9920 15.5 13.3 117 19.4 14.3 136 SAGE CREEK BASIN 7850 4.1 4.7 87 6.6 5.2 127 SOUTH BRUSH CREEK 8440 6.0 4.5 133 9.6 7.1 135 TOWER 10500 23.0 18.6 124 25.1 16.0 157 WEBBER SPRINGS 9250 10.4 10.3 101 15.5 11.7 132 WILLOW CREEK PASS 9540 6.3 5.1 124 7.6 5.9 129 ----- ----- Basin wide percent of average 120 140 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 10.7 9.5 113 8.4 9.1 92 CASPER MTN. 7850 4.7 6.3 75 7.5 6.7 112 DEADMAN HILL 10220 7.9 6.9 114 9.2 7.2 128 DEER PARK 9700 5.6 6.2 90 7.5 9.9 76 LAPRELE CREEK 8375 2.6 4.8 54 4.1 5.7 72 RENO HILL 8500 5.4 6.0 90 7.0 6.7 104 ROACH 9700 7.3 6.5 112 10.3 7.6 136 SAND LAKE 10050 14.7 13.5 109 14.9 10.5 142 SOUTH PASS 9040 5.3 7.5 71 6.8 8.4 81 WINDY PEAK 7900 2.1 3.2 66 4.0 5.0 80 ----- ----- Basin wide percent of average 94 104 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.5 3.4 162 8.4 6.4 131 DIVIDE PEAK 8860 7.3 8.1 90 10.8 9.0 120 OLD BATTLE 9920 15.5 13.3 117 19.4 14.3 136 SANDSTONE RS 8150 5.5 4.5 122 10.6 8.0 132 WHISKEY PARK 8950 12.9 9.7 133 16.0 11.8 136 ----- ----- Basin wide percent of average 120 132 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.0 6.2 65 4.9 6.0 82 BLIND BULL SUM 8900 9.6 11.6 83 8.4 9.9 85 EAST RIM DIVIDE 7930 4.0 5.2 77 4.7 5.2 90 ELKHART PARK G.S. 9400 5.1 5.6 91 6.0 6.1 98 GROS VENTRE SUMMIT 8750 5.1 6.1 84 6.2 5.9 105 KENDALL R.S. 7740 5.1 5.8 88 6.4 6.2 103 LOOMIS PARK 8240 6.6 7.1 93 7.5 7.4 101 NEW FORK LAKE 8340 4.0 4.7 85 4.2 5.4 78 SNIDER BASIN 8060 6.4 6.1 105 6.5 7.0 93 SPRING CREEK DIVIDE 9000 10.5 11.1 95 10.9 11.5 95 TRIPLE PEAK 8500 10.2 10.5 97 11.9 10.0 119 ----- ----- Basin wide percent of average 88 96 LOWER GREEN RIVER HAMS FORK 7840 4.2 4.7 89 4.9 5.2 94 HEWINTA 9500 4.6 3.5 131 7.1 6.5 109 HICKERSON PARK 9100 1.3 2.5 52 3.5 3.9 90 HOLE-IN-ROCK 9150 3.5 2.4 146 4.0 3.7 108 INDIAN CREEK 9425 10.1 11.0 92 9.6 10.9 88 KELLEY R.S. 8180 6.1 6.8 90 7.7 9.0 86 STEEL CREEK PARK 10100 6.1 6.0 102 7.6 7.0 109 ----- ----- Basin wide percent of average 97 96 UPPER BEAR RIVER BUG LAKE 7950 7.4 7.1 104 8.3 8.3 100 HAYDEN FORK 9100 7.3 5.4 135 9.9 9.0 110 KELLEY R.S. 8180 6.1 6.8 90 7.7 9.0 86 LILY LAKE 9050 5.5 4.8 115 7.0 7.9 89 MONTE CRISTO 8960 10.4 9.4 111 11.7 10.9 107 SALT RIVER SUMMIT 7600 5.2 4.7 111 7.1 8.0 89 TRIAL LAKE 9960 10.9 9.2 118 11.5 10.0 115 ----- ----- Basin wide percent of average 111 100 ----------------------------------------------------------------------------- -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.