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 MONDAY: JANUARY 5 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 7.6 8.8 86 10.6 11.0 96 COTTONWOOD CREEK 7670 11.5 10.3 112 14.7 14.3 103 GRAND TARGHEE 9260 18.3 -M * 17.1 -M * GRANITE CREEK 6770 -M 8.2 * -M 10.1 * GRASSY LAKE 7265 14.0 15.8 89 17.3 18.5 94 GROS VENTRE SUMMIT 8750 7.8 7.3 107 8.6 6.7 128 GUNSIGHT PASS 9820 6.9 -M * 8.0 -M * LEWIS LAKE DIVIDE 7850 13.0 15.8 82 16.9 18.6 91 PHILLIPS BENCH 8200 13.4 13.4 100 15.7 14.4 109 SALT RIVER SUMMIT 7760 5.3 5.8 91 6.9 9.5 73 SNAKE RIVER STATION 6920 6.5 8.4 77 11.1 11.6 96 SPRING CREEK DIVIDE 9000 11.9 13.2 90 12.9 13.9 93 THUMB DIVIDE 7980 8.9 8.1 110 10.8 9.6 113 TOGWOTEE PASS 9580 14.3 12.3 116 15.7 12.7 124 TWO OCEAN PLATEAU 9240 19.4 14.2 137 14.9 14.2 105 WILLOW CREEK 8380 14.3 15.1 95 18.6 16.4 113 ----- ----- Basin wide percent of average 100 102 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 10.7 12.1 88 9.9 10.5 94 BLACK BEAR 8170 16.6 18.5 90 18.5 18.7 99 CANYON 7870 6.5 6.6 98 7.3 8.2 89 FISHER CREEK 9100 18.4 17.3 106 17.1 18.2 94 MADISON PLATEAU 7750 9.9 12.0 82 11.8 13.0 91 NORTHEAST ENTRANCE 7350 4.3 5.3 81 6.9 6.7 103 PARKER PEAK 9400 12.7 11.1 114 -M 8.6 * SYLVAN LAKE 8420 8.7 11.2 78 11.3 11.5 98 THUMB DIVIDE 7980 8.9 8.1 110 10.8 9.6 113 TWO OCEAN PLATEAU 9240 19.4 14.2 137 14.9 14.2 105 WHISKEY CREEK 6800 6.7 8.1 83 9.8 10.5 93 WHITE MILL 8700 11.6 11.8 98 11.5 13.5 85 WOLVERINE 7650 5.2 6.1 85 5.8 7.3 79 ----- ----- Basin wide percent of average 98 96 WIND RIVER BURROUGHS CREEK 8750 9.0 7.2 125 9.7 8.5 114 COLD SPRINGS 9630 4.1 4.8 85 5.9 5.9 100 DEER PARK 9700 5.7 7.1 80 9.3 11.4 82 HOBBS PARK 10100 6.5 7.9 82 6.7 6.6 102 LITTLE WARM 9370 5.7 5.6 102 7.4 7.1 104 SOUTH PASS 9040 6.4 8.5 75 8.7 9.5 92 ST. LAWRENCE ALT 8620 1.6 3.9 41 4.6 4.7 98 TOGWOTEE PASS 9580 14.3 12.3 116 15.7 12.7 124 TOWNSEND CREEK 8700 3.6 4.5 80 5.8 6.2 94 ----- ----- Basin wide percent of average 92 102 BIGHORN BASIN BALD MTN. 9380 10.6 10.2 104 9.3 8.9 104 BEAR TRAP MEADOW 8200 4.2 2.7 156 5.5 4.6 120 BLACKWATER 9780 12.9 12.6 102 11.6 11.2 104 BONE SPRINGS DIV 9350 10.4 8.2 127 8.1 7.6 107 EVENING STAR 9200 14.3 14.5 99 14.9 13.6 110 GRAVE SPRINGS 8550 3.2 4.4 73 4.9 5.1 96 KIRWIN 9550 7.6 6.1 125 8.3 6.1 136 MARQUETTE 8760 2.6 5.0 52 5.3 5.4 98 MIDDLE POWDER 7760 4.5 5.7 79 5.4 7.0 77 OWL CREEK 8975 3.4 2.7 126 3.3 3.0 110 POWDER RIVER PASS 9480 6.8 5.5 124 7.7 6.3 122 SHELL CREEK 9580 9.3 7.6 122 9.3 7.0 133 SYLVAN LAKE 8420 8.7 11.2 78 11.3 11.5 98 SYLVAN ROAD 7120 6.4 6.6 97 9.1 10.5 87 TIMBER CREEK 7950 2.4 3.1 77 5.1 3.8 134 YOUNTS PEAK 8350 10.8 8.4 129 9.8 8.7 113 ----- ----- Basin wide percent of average 103 107 SHOSHONE RIVER BLACKWATER 9780 12.9 12.6 102 11.6 11.2 104 EVENING STAR 9200 14.3 14.5 99 14.9 13.6 110 KIRWIN 9550 7.6 6.1 125 8.3 6.1 136 MARQUETTE 8760 2.6 5.0 52 5.3 5.4 98 SYLVAN LAKE 8420 8.7 11.2 78 11.3 11.5 98 SYLVAN ROAD 7120 6.4 6.6 97 9.1 10.5 87 YOUNTS PEAK 8350 10.8 8.4 129 9.8 8.7 113 ----- ----- Basin wide percent of average 98 105 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.2 2.7 156 5.5 4.6 120 BIG GOOSE 7990 4.4 4.6 96 6.5 4.6 141 BONE SPRINGS DIV 9350 10.4 8.2 127 8.1 7.6 107 BURGESS JUNCTION 7880 6.4 5.8 110 7.3 6.3 116 CLOUD PEAK RESERVOIR 9860 8.8 6.0 147 9.0 6.6 136 DOME LAKE 8880 6.9 6.3 110 8.7 7.1 123 GRAVE SPRINGS 8550 3.2 4.4 73 4.9 5.1 96 HANSEN SAWMILL 8360 3.6 3.4 106 6.3 4.4 143 MIDDLE POWDER 7760 4.5 5.7 79 5.4 7.0 77 POWDER RIVER PASS 9480 6.8 5.5 124 7.7 6.3 122 SUCKER CREEK 8880 7.9 5.5 144 9.6 7.0 137 TIE CREEK 6870 2.0 2.7 74 8.0 5.3 151 ----- ----- Basin wide percent of average 114 121 BELLE FOURCHE BLIND PARK 6890 4.4 3.9 113 8.7 6.4 136 COLE CANYON 5910 3.1 3.4 91 7.1 4.0 178 NORTH RAPID CREEK 6130 5.1 3.5 146 8.1 5.4 150 ----- ----- Basin wide percent of average 117 151 UPPER N. PLATTE RIVER COLUMBINE 9160 8.7 10.8 81 8.8 12.2 72 DIVIDE PEAK 8880 8.5 9.7 88 10.6 10.6 100 ELK RIVER 8700 9.1 7.9 115 9.5 9.4 101 JOE WRIGHT 10120 11.2 10.2 110 13.9 12.5 111 NORTH FRENCH CREEK 10130 12.9 14.1 91 13.0 12.6 103 OLD BATTLE 10000 13.3 15.3 87 16.6 16.9 98 SAGE CREEK BASIN 7850 4.2 5.6 75 6.3 6.1 103 SOUTH BRUSH CREEK 8440 6.4 5.4 119 7.7 8.2 94 TOWER 10500 14.6 21.8 67 16.9 18.9 89 WEBBER SPRINGS 9250 10.4 12.0 87 12.9 13.7 94 WILLOW CREEK PASS 9540 5.9 5.8 102 6.8 6.7 101 ----- ----- Basin wide percent of average 89 96 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 8.2 11.4 72 8.4 10.7 79 CASPER MTN. 7900 3.7 7.2 51 6.5 7.4 88 DEADMAN HILL 10220 7.0 8.0 88 7.7 8.2 94 DEER PARK 9700 5.7 7.1 80 9.3 11.4 82 LAPRELE CREEK 8375 -M 5.6 * -M 6.4 * RENO HILL 8400 4.3 6.8 63 5.4 7.4 73 ROACH 9700 7.3 7.8 94 8.5 9.0 94 SAND LAKE 10050 11.4 15.6 73 10.4 12.2 85 SOUTH PASS 9040 6.4 8.5 75 8.7 9.5 92 WINDY PEAK 7900 2.3 3.6 64 3.2 5.8 55 ----- ----- Basin wide percent of average 74 83 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.8 4.6 104 7.5 7.5 100 DIVIDE PEAK 8880 8.5 9.7 88 10.6 10.6 100 OLD BATTLE 10000 13.3 15.3 87 16.6 16.9 98 SANDSTONE RS 8150 6.1 5.8 105 8.8 9.4 94 WHISKEY PARK 8950 10.9 12.0 91 13.3 14.0 95 ----- ----- Basin wide percent of average 92 97 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.9 7.2 82 6.2 6.9 90 BLIND BULL SUM 8650 11.8 13.9 85 11.0 11.7 94 EAST RIM DIVIDE 7930 4.0 6.2 65 7.2 6.1 118 ELKHART PARK G.S. 9400 7.0 6.6 106 8.5 7.0 121 GROS VENTRE SUMMIT 8750 7.8 7.3 107 8.6 6.7 128 GUNSIGHT PASS 9820 6.9 -M * 8.0 -M * KENDALL R.S. 7740 5.9 7.1 83 8.7 7.3 119 LOOMIS PARK 8240 8.3 8.5 98 10.9 8.8 124 NEW FORK LAKE 8340 6.4 5.7 112 6.3 6.2 102 SNIDER BASIN 8060 6.3 7.3 86 7.4 8.4 88 SPRING CREEK DIVIDE 9000 11.9 13.2 90 12.9 13.9 93 TRIPLE PEAK 8500 11.9 12.5 95 13.3 11.9 112 ----- ----- Basin wide percent of average 91 106 LOWER GREEN RIVER HAMS FORK 7840 3.6 5.8 62 5.5 6.2 89 HEWINTA 9519 2.5 4.4 57 5.3 7.3 73 HICKERSON PARK 9145 .7 3.1 23 3.2 4.3 74 HOLE-IN-ROCK 9150 1.4 2.8 50 3.7 4.0 92 INDIAN CREEK 9425 10.2 13.2 77 10.3 12.9 80 KELLEY R.S. 8180 6.3 8.0 79 7.5 10.7 70 STEEL CREEK PARK 10200 4.2 7.0 60 7.1 7.9 90 ----- ----- Basin wide percent of average 65 80 UPPER BEAR RIVER BUG LAKE 7950 4.7 8.9 53 7.6 9.7 78 HAYDEN FORK 9212 7.1 6.7 106 9.6 10.5 91 KELLEY R.S. 8180 6.3 8.0 79 7.5 10.7 70 LILY LAKE 9156 5.6 5.8 97 7.6 9.0 84 MONTE CRISTO 8960 10.6 11.9 89 12.0 12.7 94 SALT RIVER SUMMIT 7760 5.3 5.8 91 6.9 9.5 73 TRIAL LAKE 9992 9.8 11.1 88 10.0 11.9 84 ----- ----- Basin wide percent of average 85 83 ----------------------------------------------------------------------------- -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 1961-90. 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.