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 SUNDAY: DECEMBER 11 , 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 5.4 107 9.5 7.5 127 COTTONWOOD CREEK 7600 6.4 6.3 102 9.7 9.8 99 GRANITE CREEK 6770 6.1 4.8 127 8.3 6.7 124 GRASSY LAKE 7265 10.2 9.9 103 14.6 12.1 121 GROS VENTRE SUMMIT 8750 4.6 4.9 94 5.8 5.0 116 LEWIS LAKE DIVIDE 7850 10.1 10.0 101 13.9 12.4 112 PHILLIPS BENCH 8200 8.8 8.5 104 10.9 9.4 116 SALT RIVER SUMMIT 7600 4.1 3.5 117 6.1 6.3 97 SNAKE RIVER STATION 6920 5.2 5.3 98 10.0 7.9 127 SPRING CREEK DIVIDE 9000 8.5 8.8 97 9.2 9.1 101 THUMB DIVIDE 7980 5.6 5.1 110 7.9 6.6 120 TOGWOTEE PASS 9580 9.9 8.5 116 10.6 8.8 120 TWO OCEAN PLATEAU 9240 14.9 10.0 149 12.4 9.9 125 WILLOW CREEK 8450 8.4 9.8 86 13.0 11.4 114 ----- ----- Basin wide percent of average 108 115 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 9.7 8.5 114 8.1 7.2 112 BLACK BEAR 8170 15.2 12.2 125 16.5 12.8 129 CANYON 8090 5.3 4.1 129 7.5 5.8 129 FISHER CREEK 9100 15.2 11.7 130 15.1 12.2 124 MADISON PLATEAU 7750 8.2 7.9 104 11.6 8.9 130 NORTHEAST ENTRANCE 7350 3.2 3.4 94 5.4 4.8 113 PARKER PEAK 9400 7.4 8.0 92 7.7 6.4 120 SYLVAN LAKE 8420 6.1 7.8 78 9.6 8.4 114 THUMB DIVIDE 7980 5.6 5.1 110 7.9 6.6 120 TWO OCEAN PLATEAU 9240 14.9 10.0 149 12.4 9.9 125 WHISKEY CREEK 6800 4.1 5.1 80 9.1 7.2 126 WHITE MILL 8700 8.8 8.2 107 9.0 9.3 97 WOLVERINE 7650 3.9 3.9 100 4.3 5.3 81 ----- ----- Basin wide percent of average 112 119 WIND RIVER BURROUGHS CREEK 8750 -M 4.8 * 7.3 5.9 124 COLD SPRINGS 9630 1.8 3.7 49 4.1 4.7 87 DEER PARK 9700 5.3 5.3 100 7.1 8.3 86 HOBBS PARK 10100 3.3 6.2 53 4.7 5.2 90 LITTLE WARM 9370 3.6 4.0 90 5.6 5.3 106 SOUTH PASS 9040 5.0 6.3 79 6.5 7.0 93 ST. LAWRENCE ALT 8620 .6 3.1 19 2.8 3.9 72 TOGWOTEE PASS 9580 9.9 8.5 116 10.6 8.8 120 TOWNSEND CREEK 8700 2.0 3.5 57 4.7 5.0 94 ----- ----- Basin wide percent of average 78 99 BIGHORN BASIN BALD MTN. 9380 6.1 7.2 85 5.0 6.3 79 BEAR TRAP MEADOW 8200 2.0 2.0 100 4.1 3.8 108 BLACKWATER 9780 9.1 9.3 98 8.1 8.4 96 BONE SPRINGS DIV 9350 6.2 6.1 102 6.2 5.7 109 EVENING STAR 9200 8.6 10.4 83 11.8 9.7 122 GRAVE SPRINGS 8550 2.7 3.0 90 5.1 4.0 127 KIRWIN 9550 5.5 4.8 115 5.9 4.7 126 MARQUETTE 8760 1.2 4.2 29 4.1 4.5 91 MIDDLE POWDER 7760 4.6 4.3 107 5.5 5.5 100 OWL CREEK 8975 .9 2.2 41 3.3 2.4 138 POWDER RIVER PASS 9480 3.4 3.9 87 5.3 4.7 113 SHELL CREEK 9580 5.4 5.7 95 5.3 5.2 102 SYLVAN LAKE 8420 6.1 7.8 78 9.6 8.4 114 SYLVAN ROAD 7120 3.6 4.5 80 7.7 7.7 100 TIMBER CREEK 7950 1.0 2.5 40 3.2 3.2 100 YOUNTS PEAK 8350 -M 5.8 * 8.9 6.2 144 ----- ----- Basin wide percent of average 85 110 SHOSHONE RIVER BLACKWATER 9780 9.1 9.3 98 8.1 8.4 96 EVENING STAR 9200 8.6 10.4 83 11.8 9.7 122 KIRWIN 9550 5.5 4.8 115 5.9 4.7 126 MARQUETTE 8760 1.2 4.2 29 4.1 4.5 91 SYLVAN LAKE 8420 6.1 7.8 78 9.6 8.4 114 SYLVAN ROAD 7120 3.6 4.5 80 7.7 7.7 100 YOUNTS PEAK 8350 -M 5.8 * 8.9 6.2 144 ----- ----- Basin wide percent of average 83 113 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.0 2.0 100 4.1 3.8 108 BIG GOOSE 7990 2.3 3.0 77 4.5 3.5 129 BONE SPRINGS DIV 9350 6.2 6.1 102 6.2 5.7 109 BURGESS JUNCTION 7880 -M 4.1 * -M 4.8 * CLOUD PEAK RESERVOIR 9860 4.7 4.4 107 5.7 5.4 106 DOME LAKE 8880 4.6 4.7 98 5.6 5.5 102 GRAVE SPRINGS 8550 2.7 3.0 90 5.1 4.0 127 HANSEN SAWMILL 8360 1.5 2.4 62 3.2 3.6 89 MIDDLE POWDER 7760 4.6 4.3 107 5.5 5.5 100 POWDER RIVER PASS 9480 3.4 3.9 87 5.3 4.7 113 SUCKER CREEK 8880 3.8 3.8 100 6.3 5.2 121 TIE CREEK 6870 2.4 1.4 171 5.7 4.2 136 ----- ----- Basin wide percent of average 98 112 BELLE FOURCHE BLIND PARK 6890 2.0 2.4 83 3.6 5.0 72 COLE CANYON 5910 1.7 2.3 74 4.1 -M * NORTH RAPID CREEK 6130 2.4 2.2 109 3.4 4.3 79 ----- ----- Basin wide percent of average 88 75 UPPER N. PLATTE RIVER COLUMBINE 9160 10.1 6.5 155 13.8 8.0 172 DIVIDE PEAK 8860 5.9 6.4 92 9.5 7.4 128 ELK RIVER 8700 4.8 4.3 112 8.4 6.4 131 JOE WRIGHT 10120 9.5 7.3 130 12.0 9.1 132 NORTH FRENCH CREEK 10130 10.9 9.6 114 12.1 9.0 134 OLD BATTLE 9920 12.6 11.0 115 15.9 11.5 138 SAGE CREEK BASIN 7850 3.3 3.7 89 6.0 4.3 140 SOUTH BRUSH CREEK 8440 4.3 3.6 119 7.8 6.0 130 TOWER 10500 17.4 15.2 114 20.3 13.0 156 WEBBER SPRINGS 9250 -M 8.2 * -M 9.5 * WILLOW CREEK PASS 9540 5.4 4.2 129 6.7 5.0 134 ----- ----- Basin wide percent of average 117 141 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 8.7 7.5 116 6.6 7.5 88 CASPER MTN. 7850 4.0 5.4 74 7.0 5.8 121 DEADMAN HILL 10220 6.6 5.9 112 8.3 6.1 136 DEER PARK 9700 5.3 5.3 100 7.1 8.3 86 LAPRELE CREEK 8375 2.0 3.9 51 3.6 4.9 73 RENO HILL 8500 4.9 5.1 96 6.5 5.8 112 ROACH 9700 6.0 5.2 115 8.9 6.3 141 SAND LAKE 10050 12.6 11.1 114 13.0 8.6 151 SOUTH PASS 9040 5.0 6.3 79 6.5 7.0 93 WINDY PEAK 7900 1.8 2.7 67 3.6 4.3 84 ----- ----- Basin wide percent of average 97 110 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.2 2.4 175 7.3 5.3 138 DIVIDE PEAK 8860 5.9 6.4 92 9.5 7.4 128 OLD BATTLE 9920 12.6 11.0 115 15.9 11.5 138 SANDSTONE RS 8150 4.4 3.2 138 9.1 6.6 138 WHISKEY PARK 8950 9.7 7.6 128 13.2 9.5 139 ----- ----- Basin wide percent of average 120 136 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.4 5.0 68 4.4 5.0 88 BLIND BULL SUM 8900 7.7 9.1 85 7.2 7.9 91 EAST RIM DIVIDE 7930 3.5 4.1 85 4.3 4.2 102 ELKHART PARK G.S. 9400 4.6 4.4 105 5.5 5.1 108 GROS VENTRE SUMMIT 8750 4.6 4.9 94 5.8 5.0 116 KENDALL R.S. 7740 4.3 4.3 100 5.7 5.0 114 LOOMIS PARK 8240 5.7 5.6 102 6.7 6.0 112 NEW FORK LAKE 8340 3.5 3.7 95 4.0 4.5 89 SNIDER BASIN 8060 5.3 4.7 113 5.7 5.6 102 SPRING CREEK DIVIDE 9000 8.5 8.8 97 9.2 9.1 101 TRIPLE PEAK 8500 8.7 8.2 106 10.4 8.0 130 ----- ----- Basin wide percent of average 95 105 LOWER GREEN RIVER HAMS FORK 7840 3.4 3.4 100 4.3 4.2 102 HEWINTA 9500 3.9 2.7 144 6.6 5.6 118 HICKERSON PARK 9100 1.0 1.9 53 3.4 3.5 97 HOLE-IN-ROCK 9150 3.1 1.9 163 3.8 3.3 115 INDIAN CREEK 9425 8.6 8.6 100 8.4 8.7 97 KELLEY R.S. 8180 4.9 5.3 92 6.6 7.1 93 STEEL CREEK PARK 10100 5.1 4.9 104 7.0 6.0 117 ----- ----- Basin wide percent of average 105 104 UPPER BEAR RIVER BUG LAKE 7950 5.7 5.3 108 7.1 6.8 104 HAYDEN FORK 9100 -M 4.0 * -M 7.4 * KELLEY R.S. 8180 4.9 5.3 92 6.6 7.1 93 LILY LAKE 9050 4.7 3.7 127 6.5 6.6 98 MONTE CRISTO 8960 8.0 6.9 116 9.7 8.8 110 SALT RIVER SUMMIT 7600 4.1 3.5 117 6.1 6.3 97 TRIAL LAKE 9960 8.8 7.1 124 9.7 8.2 118 ----- ----- Basin wide percent of average 114 104 ----------------------------------------------------------------------------- -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.