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: JANUARY 11 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.6 9.7 99 12.3 11.9 103 COTTONWOOD CREEK 7670 14.7 11.2 131 18.0 15.5 116 GRAND TARGHEE 9260 21.7 -M * 19.4 -M * GRANITE CREEK 6770 -M 9.2 * -M 11.0 * GRASSY LAKE 7265 17.0 17.4 98 20.4 20.1 101 GROS VENTRE SUMMIT 8750 8.4 7.8 108 9.3 7.1 131 GUNSIGHT PASS 9820 8.2 -M * 9.2 -M * LEWIS LAKE DIVIDE 7850 15.5 17.4 89 19.8 20.1 99 PHILLIPS BENCH 8200 15.5 14.6 106 17.8 15.6 114 SALT RIVER SUMMIT 7760 7.0 6.6 106 8.7 10.3 84 SNAKE RIVER STATION 6920 9.1 9.3 98 13.3 12.6 106 SPRING CREEK DIVIDE 9000 14.7 14.1 104 15.6 15.0 104 THUMB DIVIDE 7980 10.1 8.9 113 11.9 10.4 114 TOGWOTEE PASS 9580 17.3 13.4 129 18.8 13.7 137 TWO OCEAN PLATEAU 9240 21.9 15.2 144 16.8 15.2 111 WILLOW CREEK 8380 17.9 16.3 110 22.3 17.8 125 ----- ----- Basin wide percent of average 110 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 13.7 13.3 103 12.5 11.4 110 BLACK BEAR 8170 18.3 20.1 91 20.1 20.5 98 CANYON 7870 7.2 7.2 100 8.1 8.8 92 FISHER CREEK 9100 22.0 19.0 116 20.8 19.7 106 MADISON PLATEAU 7750 10.8 13.0 83 12.8 14.0 91 NORTHEAST ENTRANCE 7350 6.0 6.0 100 8.5 7.2 118 PARKER PEAK 9400 15.2 12.1 126 -M 9.1 * SYLVAN LAKE 8420 10.9 12.2 89 13.3 12.2 109 THUMB DIVIDE 7980 10.1 8.9 113 11.9 10.4 114 TWO OCEAN PLATEAU 9240 21.9 15.2 144 16.8 15.2 111 WHISKEY CREEK 6800 7.7 8.7 89 10.6 11.3 94 WHITE MILL 8700 14.3 13.0 110 14.4 14.6 99 WOLVERINE 7650 7.1 6.8 104 7.1 7.7 92 ----- ----- Basin wide percent of average 106 103 WIND RIVER BURROUGHS CREEK 8750 10.8 8.1 133 11.6 9.2 126 COLD SPRINGS 9630 4.5 5.1 88 6.2 6.2 100 DEER PARK 9700 5.7 8.1 70 9.5 12.1 79 HOBBS PARK 10100 6.6 8.4 79 6.9 7.0 99 LITTLE WARM 9370 6.4 6.2 103 8.4 7.6 111 SOUTH PASS 9040 6.4 9.3 69 8.6 10.1 85 ST. LAWRENCE ALT 8620 1.7 4.1 41 4.7 4.9 96 TOGWOTEE PASS 9580 17.3 13.4 129 18.8 13.7 137 TOWNSEND CREEK 8700 3.8 4.8 79 5.8 6.4 91 ----- ----- Basin wide percent of average 94 104 BIGHORN BASIN BALD MTN. 9380 12.4 11.1 112 10.5 9.6 109 BEAR TRAP MEADOW 8200 5.2 2.9 179 6.0 4.8 125 BLACKWATER 9780 14.9 13.6 110 13.6 11.9 114 BONE SPRINGS DIV 9350 12.0 8.8 136 9.5 8.1 117 EVENING STAR 9200 18.3 16.0 114 19.0 14.6 130 GRAVE SPRINGS 8550 3.6 4.7 77 5.1 5.4 94 KIRWIN 9550 8.2 6.6 124 9.2 6.5 142 MARQUETTE 8760 2.6 5.2 50 5.4 5.6 96 MIDDLE POWDER 7760 5.3 6.1 87 5.7 7.3 78 OWL CREEK 8975 3.5 2.9 121 3.4 3.2 106 POWDER RIVER PASS 9480 8.5 6.0 142 9.6 6.7 143 SHELL CREEK 9580 11.4 8.3 137 11.2 7.5 149 SYLVAN LAKE 8420 10.9 12.2 89 13.3 12.2 109 SYLVAN ROAD 7120 8.8 7.2 122 11.7 11.2 104 TIMBER CREEK 7950 2.5 3.2 78 5.6 3.9 144 YOUNTS PEAK 8350 12.7 9.3 137 11.4 9.4 121 ----- ----- Basin wide percent of average 113 117 SHOSHONE RIVER BLACKWATER 9780 14.9 13.6 110 13.6 11.9 114 EVENING STAR 9200 18.3 16.0 114 19.0 14.6 130 KIRWIN 9550 8.2 6.6 124 9.2 6.5 142 MARQUETTE 8760 2.6 5.2 50 5.4 5.6 96 SYLVAN LAKE 8420 10.9 12.2 89 13.3 12.2 109 SYLVAN ROAD 7120 8.8 7.2 122 11.7 11.2 104 YOUNTS PEAK 8350 12.7 9.3 137 11.4 9.4 121 ----- ----- Basin wide percent of average 109 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.2 2.9 179 6.0 4.8 125 BIG GOOSE 7990 4.6 5.0 92 6.8 4.8 142 BONE SPRINGS DIV 9350 12.0 8.8 136 9.5 8.1 117 BURGESS JUNCTION 7880 6.8 6.1 111 7.6 6.7 113 CLOUD PEAK RESERVOIR 9860 9.9 6.5 152 9.9 7.0 141 DOME LAKE 8880 7.4 6.7 110 9.2 7.5 123 GRAVE SPRINGS 8550 3.6 4.7 77 5.1 5.4 94 HANSEN SAWMILL 8360 3.8 3.5 109 6.4 4.6 139 MIDDLE POWDER 7760 5.3 6.1 87 5.7 7.3 78 POWDER RIVER PASS 9480 8.5 6.0 142 9.6 6.7 143 SUCKER CREEK 8880 8.4 5.8 145 10.2 7.4 138 TIE CREEK 6870 2.3 3.2 72 8.4 5.7 147 ----- ----- Basin wide percent of average 119 124 BELLE FOURCHE BLIND PARK 6890 5.6 4.2 133 9.9 6.8 146 COLE CANYON 5910 3.8 3.6 106 8.3 4.2 198 NORTH RAPID CREEK 6130 6.0 3.8 158 8.9 5.6 159 ----- ----- Basin wide percent of average 133 163 UPPER N. PLATTE RIVER COLUMBINE 9160 11.3 12.0 94 11.2 13.3 84 DIVIDE PEAK 8880 9.7 10.5 92 11.9 11.3 105 ELK RIVER 8700 11.2 8.8 127 11.5 10.2 113 JOE WRIGHT 10120 12.3 11.0 112 15.4 13.4 115 NORTH FRENCH CREEK 10130 15.0 15.1 99 14.7 13.5 109 OLD BATTLE 10000 14.9 16.3 91 18.7 18.2 103 SAGE CREEK BASIN 7850 4.7 6.1 77 6.6 6.6 100 SOUTH BRUSH CREEK 8440 7.0 5.9 119 8.7 8.8 99 TOWER 10500 -M 23.6 * -M 20.4 * WEBBER SPRINGS 9250 11.6 12.9 90 14.4 14.8 97 WILLOW CREEK PASS 9540 6.4 6.2 103 7.0 7.0 100 ----- ----- Basin wide percent of average 99 103 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 10.3 12.3 84 9.9 11.6 85 CASPER MTN. 7900 4.1 7.6 54 6.9 7.8 88 DEADMAN HILL 10220 8.0 8.6 93 8.6 8.8 98 DEER PARK 9700 5.7 8.1 70 9.5 12.1 79 LAPRELE CREEK 8375 -M 6.0 * -M 6.9 * RENO HILL 8400 4.9 7.2 68 6.2 7.9 78 ROACH 9700 8.1 8.5 95 9.5 9.6 99 SAND LAKE 10050 13.2 16.6 80 12.1 13.1 92 SOUTH PASS 9040 6.4 9.3 69 8.6 10.1 85 WINDY PEAK 7900 2.6 3.8 68 3.5 6.1 57 ----- ----- Basin wide percent of average 77 86 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.9 5.3 111 8.7 8.1 107 DIVIDE PEAK 8880 9.7 10.5 92 11.9 11.3 105 OLD BATTLE 10000 14.9 16.3 91 18.7 18.2 103 SANDSTONE RS 8150 7.3 6.7 109 9.8 10.2 96 WHISKEY PARK 8950 13.8 13.4 103 16.0 15.4 104 ----- ----- Basin wide percent of average 99 103 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.9 7.7 90 7.1 7.4 96 BLIND BULL SUM 8650 14.4 15.0 96 12.4 12.6 98 EAST RIM DIVIDE 7930 5.0 6.7 75 8.0 6.6 121 ELKHART PARK G.S. 9400 7.8 7.1 110 9.2 7.5 123 GROS VENTRE SUMMIT 8750 8.4 7.8 108 9.3 7.1 131 GUNSIGHT PASS 9820 8.2 -M * 9.2 -M * KENDALL R.S. 7740 6.9 7.7 90 9.2 7.9 116 LOOMIS PARK 8240 10.0 9.1 110 12.3 9.6 128 NEW FORK LAKE 8340 7.4 6.1 121 7.2 6.6 109 SNIDER BASIN 8060 8.2 7.8 105 9.2 9.1 101 SPRING CREEK DIVIDE 9000 14.7 14.1 104 15.6 15.0 104 TRIPLE PEAK 8500 14.7 13.5 109 16.4 13.0 126 ----- ----- Basin wide percent of average 102 113 LOWER GREEN RIVER HAMS FORK 7840 4.8 6.4 75 6.0 6.7 90 HEWINTA 9519 3.6 4.9 73 6.6 7.7 86 HICKERSON PARK 9145 1.5 3.4 44 4.1 4.5 91 HOLE-IN-ROCK 9150 1.9 3.1 61 4.0 4.1 98 INDIAN CREEK 9425 11.8 14.2 83 11.6 13.9 83 KELLEY R.S. 8180 7.2 8.6 84 8.9 11.5 77 STEEL CREEK PARK 10200 4.9 7.5 65 8.2 8.4 98 ----- ----- Basin wide percent of average 74 87 UPPER BEAR RIVER BUG LAKE 7950 6.3 9.9 64 9.1 10.4 87 HAYDEN FORK 9212 8.4 7.4 114 11.1 11.2 99 KELLEY R.S. 8180 7.2 8.6 84 8.9 11.5 77 LILY LAKE 9156 6.7 6.3 106 8.5 9.6 89 MONTE CRISTO 8960 12.3 13.3 92 13.5 13.7 99 SALT RIVER SUMMIT 7760 7.0 6.6 106 8.7 10.3 84 TRIAL LAKE 9992 11.0 12.1 91 11.0 12.8 86 ----- ----- Basin wide percent of average 92 89 ----------------------------------------------------------------------------- -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.