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 FRIDAY: DECEMBER 30 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 8.4 7.9 106 12.4 10.1 123 COTTONWOOD CREEK 7600 10.6 9.4 113 13.9 13.1 106 GRANITE CREEK 6770 8.3 7.3 114 11.1 9.2 121 GRASSY LAKE 7265 14.9 14.2 105 20.0 16.8 119 GROS VENTRE SUMMIT 8750 6.1 6.7 91 7.1 6.3 113 LEWIS LAKE DIVIDE 7850 16.1 14.3 113 19.4 17.0 114 PHILLIPS BENCH 8200 13.6 12.2 111 15.0 13.1 115 SALT RIVER SUMMIT 7600 6.1 5.2 117 8.2 8.7 94 SNAKE RIVER STATION 6920 8.1 7.7 105 13.1 10.7 122 SPRING CREEK DIVIDE 9000 12.6 12.2 103 12.7 12.6 101 THUMB DIVIDE 7980 7.9 7.4 107 9.8 8.9 110 TOGWOTEE PASS 9580 12.7 11.4 111 13.4 11.7 115 TWO OCEAN PLATEAU 9240 18.1 13.2 137 14.8 13.2 112 WILLOW CREEK 8450 13.3 13.9 96 17.9 15.1 119 ----- ----- Basin wide percent of average 110 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.6 11.2 104 9.6 9.7 99 BLACK BEAR 8170 21.6 16.7 129 21.6 17.1 126 CANYON 8090 6.9 5.9 117 9.2 7.6 121 FISHER CREEK 9100 20.1 15.9 126 19.4 16.6 117 MADISON PLATEAU 7750 11.2 10.9 103 14.4 12.1 119 NORTHEAST ENTRANCE 7350 4.5 4.8 94 6.7 6.2 108 PARKER PEAK 9400 10.0 10.4 96 9.5 8.0 119 SYLVAN LAKE 8420 8.5 10.2 83 12.0 10.7 112 THUMB DIVIDE 7980 7.9 7.4 107 9.8 8.9 110 TWO OCEAN PLATEAU 9240 18.1 13.2 137 14.8 13.2 112 WHISKEY CREEK 6800 5.9 7.3 81 10.9 9.6 114 WHITE MILL 8700 11.8 10.8 109 11.7 12.5 94 WOLVERINE 7650 4.9 5.6 88 4.5 6.8 66 ----- ----- Basin wide percent of average 110 111 WIND RIVER BURROUGHS CREEK 8750 -M 6.5 * 8.8 7.8 113 COLD SPRINGS 9630 2.0 4.5 44 4.4 5.6 79 DEER PARK 9700 6.7 6.6 102 8.6 10.7 80 HOBBS PARK 10100 4.1 7.5 55 5.2 6.3 83 LITTLE WARM 9370 4.2 5.2 81 6.3 6.6 95 SOUTH PASS 9040 6.1 8.0 76 7.5 9.0 83 ST. LAWRENCE ALT 8620 .7 3.7 19 3.0 4.5 67 TOGWOTEE PASS 9580 12.7 11.4 111 13.4 11.7 115 TOWNSEND CREEK 8700 2.2 4.3 51 5.1 5.9 86 ----- ----- Basin wide percent of average 76 91 BIGHORN BASIN BALD MTN. 9380 8.2 9.5 86 6.4 8.3 77 BEAR TRAP MEADOW 8200 2.8 2.5 112 4.7 4.4 107 BLACKWATER 9780 10.9 11.8 92 9.5 10.6 90 BONE SPRINGS DIV 9350 7.2 7.6 95 7.1 7.1 100 EVENING STAR 9200 12.0 13.4 90 14.1 12.7 111 GRAVE SPRINGS 8550 4.4 3.9 113 6.7 4.8 140 KIRWIN 9550 5.8 5.8 100 6.2 5.8 107 MARQUETTE 8760 .9 4.9 18 3.8 5.2 73 MIDDLE POWDER 7760 6.6 5.4 122 6.2 6.7 93 OWL CREEK 8975 1.0 2.7 37 3.3 2.9 114 POWDER RIVER PASS 9480 4.9 5.2 94 6.4 5.9 108 SHELL CREEK 9580 6.6 7.1 93 6.4 6.6 97 SYLVAN LAKE 8420 8.5 10.2 83 12.0 10.7 112 SYLVAN ROAD 7120 4.8 6.0 80 9.3 9.9 94 TIMBER CREEK 7950 .9 3.0 30 3.2 3.7 86 YOUNTS PEAK 8350 -M 7.7 * 10.0 8.0 125 ----- ----- Basin wide percent of average 86 102 SHOSHONE RIVER BLACKWATER 9780 10.9 11.8 92 9.5 10.6 90 EVENING STAR 9200 12.0 13.4 90 14.1 12.7 111 KIRWIN 9550 5.8 5.8 100 6.2 5.8 107 MARQUETTE 8760 .9 4.9 18 3.8 5.2 73 SYLVAN LAKE 8420 8.5 10.2 83 12.0 10.7 112 SYLVAN ROAD 7120 4.8 6.0 80 9.3 9.9 94 YOUNTS PEAK 8350 -M 7.7 * 10.0 8.0 125 ----- ----- Basin wide percent of average 82 103 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.8 2.5 112 4.7 4.4 107 BIG GOOSE 7990 3.0 4.3 70 5.0 4.4 114 BONE SPRINGS DIV 9350 7.2 7.6 95 7.1 7.1 100 BURGESS JUNCTION 7880 5.3 5.4 98 6.6 6.0 110 CLOUD PEAK RESERVOIR 9860 6.2 5.6 111 6.3 6.3 100 DOME LAKE 8880 5.5 6.0 92 6.4 6.8 94 GRAVE SPRINGS 8550 4.4 3.9 113 6.7 4.8 140 HANSEN SAWMILL 8360 1.8 3.2 56 3.6 4.2 86 MIDDLE POWDER 7760 6.6 5.4 122 6.2 6.7 93 POWDER RIVER PASS 9480 4.9 5.2 94 6.4 5.9 108 SUCKER CREEK 8880 5.5 5.1 108 7.9 6.6 120 TIE CREEK 6870 3.0 2.4 125 6.5 5.0 130 ----- ----- Basin wide percent of average 99 108 BELLE FOURCHE BLIND PARK 6890 4.2 3.4 124 6.2 6.1 102 COLE CANYON 5910 3.0 2.9 103 4.8 -M * NORTH RAPID CREEK 6130 3.6 3.2 112 4.7 5.2 90 ----- ----- Basin wide percent of average 114 96 UPPER N. PLATTE RIVER COLUMBINE 9160 15.1 9.7 156 18.2 11.2 162 DIVIDE PEAK 8860 8.7 8.9 98 11.9 9.8 121 ELK RIVER 8700 8.5 6.9 123 11.2 8.7 129 JOE WRIGHT 10120 12.5 9.5 132 15.4 11.6 133 NORTH FRENCH CREEK 10130 17.7 13.0 136 18.3 11.7 156 OLD BATTLE 9920 17.9 14.3 125 21.5 15.6 138 SAGE CREEK BASIN 7850 5.1 5.1 100 7.7 5.7 135 SOUTH BRUSH CREEK 8440 7.0 5.0 140 10.5 7.6 138 TOWER 10500 25.6 20.1 127 27.0 17.4 155 WEBBER SPRINGS 9250 12.3 11.2 110 17.3 12.7 136 WILLOW CREEK PASS 9540 6.2 5.5 113 7.7 6.3 122 ----- ----- Basin wide percent of average 125 141 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 12.2 10.5 116 9.8 9.8 100 CASPER MTN. 7850 5.8 6.8 85 8.5 7.1 120 DEADMAN HILL 10220 8.5 7.4 115 9.9 7.7 129 DEER PARK 9700 6.7 6.6 102 8.6 10.7 80 LAPRELE CREEK 8375 3.4 5.2 65 4.4 6.1 72 RENO HILL 8500 6.4 6.5 98 8.1 7.1 114 ROACH 9700 8.0 7.1 113 10.9 8.3 131 SAND LAKE 10050 17.1 14.5 118 -M 11.3 * SOUTH PASS 9040 6.1 8.0 76 7.5 9.0 83 WINDY PEAK 7900 2.6 3.4 76 4.3 5.4 80 ----- ----- Basin wide percent of average 101 101 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.2 3.9 159 9.0 6.9 130 DIVIDE PEAK 8860 8.7 8.9 98 11.9 9.8 121 OLD BATTLE 9920 17.9 14.3 125 21.5 15.6 138 SANDSTONE RS 8150 6.6 5.1 129 11.8 8.7 136 WHISKEY PARK 8950 15.3 10.8 142 18.2 12.9 141 ----- ----- Basin wide percent of average 127 134 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.5 6.7 82 6.3 6.5 97 BLIND BULL SUM 8900 11.4 12.8 89 9.6 10.8 89 EAST RIM DIVIDE 7930 4.6 5.7 81 5.3 5.7 93 ELKHART PARK G.S. 9400 6.0 6.1 98 6.8 6.6 103 GROS VENTRE SUMMIT 8750 6.1 6.7 91 7.1 6.3 113 KENDALL R.S. 7740 6.3 6.5 97 7.5 6.7 112 LOOMIS PARK 8240 8.1 7.8 104 9.0 8.1 111 NEW FORK LAKE 8340 4.6 5.2 88 5.0 5.8 86 SNIDER BASIN 8060 7.4 6.7 110 7.5 7.7 97 SPRING CREEK DIVIDE 9000 12.6 12.2 103 12.7 12.6 101 TRIPLE PEAK 8500 12.2 11.5 106 13.6 10.9 125 ----- ----- Basin wide percent of average 96 103 LOWER GREEN RIVER HAMS FORK 7840 5.2 5.3 98 5.6 5.7 98 HEWINTA 9500 4.9 4.0 123 7.5 6.9 109 HICKERSON PARK 9100 1.1 2.8 39 3.5 4.1 85 HOLE-IN-ROCK 9150 3.6 2.6 138 4.2 3.8 111 INDIAN CREEK 9425 12.1 12.1 100 11.1 11.9 93 KELLEY R.S. 8180 -M 7.4 * -M 9.8 * STEEL CREEK PARK 10100 6.8 6.5 105 8.1 7.4 109 ----- ----- Basin wide percent of average 101 101 UPPER BEAR RIVER BUG LAKE 7950 8.6 8.0 108 9.1 9.0 101 HAYDEN FORK 9100 8.3 6.1 136 10.9 9.7 112 KELLEY R.S. 8180 -M 7.4 * -M 9.8 * LILY LAKE 9050 6.1 5.3 115 7.5 8.4 89 MONTE CRISTO 8960 11.9 10.6 112 12.9 11.8 109 SALT RIVER SUMMIT 7600 6.1 5.2 117 8.2 8.7 94 TRIAL LAKE 9960 12.1 10.2 119 12.7 10.9 117 ----- ----- Basin wide percent of average 117 105 ----------------------------------------------------------------------------- -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.