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 12 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.9 9.8 101 12.5 12.1 103 COTTONWOOD CREEK 7670 15.1 11.4 132 18.5 15.6 119 GRAND TARGHEE 9260 22.3 -M * 19.8 -M * GRANITE CREEK 6770 -M 9.3 * -M 11.1 * GRASSY LAKE 7265 17.8 17.6 101 21.2 20.4 104 GROS VENTRE SUMMIT 8750 8.6 7.9 109 9.5 7.2 132 GUNSIGHT PASS 9820 8.3 -M * 9.3 -M * LEWIS LAKE DIVIDE 7850 15.7 17.7 89 20.2 20.4 99 PHILLIPS BENCH 8200 16.1 14.8 109 18.3 15.8 116 SALT RIVER SUMMIT 7760 7.3 6.7 109 8.9 10.4 86 SNAKE RIVER STATION 6920 9.5 9.5 100 13.7 12.7 108 SPRING CREEK DIVIDE 9000 15.2 14.3 106 16.1 15.2 106 THUMB DIVIDE 7980 10.3 9.1 113 12.1 10.5 115 TOGWOTEE PASS 9580 17.9 13.5 133 19.3 13.9 139 TWO OCEAN PLATEAU 9240 22.6 15.4 147 17.0 15.4 110 WILLOW CREEK 8380 18.3 16.5 111 22.8 18.0 127 ----- ----- Basin wide percent of average 112 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 14.2 13.5 105 13.0 11.5 113 BLACK BEAR 8170 18.9 20.5 92 20.6 20.8 99 CANYON 7870 7.5 7.3 103 8.4 8.9 94 FISHER CREEK 9100 22.4 19.4 115 21.2 20.0 106 MADISON PLATEAU 7750 11.1 13.4 83 13.1 14.2 92 NORTHEAST ENTRANCE 7350 6.3 6.1 103 8.7 7.3 119 PARKER PEAK 9400 15.7 12.3 128 12.3 9.2 134 SYLVAN LAKE 8420 11.3 12.4 91 13.7 12.4 110 THUMB DIVIDE 7980 10.3 9.1 113 12.1 10.5 115 TWO OCEAN PLATEAU 9240 22.6 15.4 147 17.0 15.4 110 WHISKEY CREEK 6800 8.0 8.9 90 10.9 11.4 96 WHITE MILL 8700 14.7 13.2 111 14.8 14.8 100 WOLVERINE 7650 7.6 7.0 109 7.4 7.8 95 ----- ----- Basin wide percent of average 108 105 WIND RIVER BURROUGHS CREEK 8750 11.2 8.3 135 11.9 9.3 128 COLD SPRINGS 9630 4.5 5.1 88 6.2 6.3 98 DEER PARK 9700 5.8 9.0 64 9.5 12.2 78 HOBBS PARK 10100 6.7 8.5 79 7.0 7.1 99 LITTLE WARM 9370 6.6 6.4 103 8.5 7.7 110 SOUTH PASS 9040 6.5 9.5 68 8.6 10.2 84 ST. LAWRENCE ALT 8620 1.8 4.2 43 4.6 5.0 92 TOGWOTEE PASS 9580 17.9 13.5 133 19.3 13.9 139 TOWNSEND CREEK 8700 4.0 4.9 82 5.9 6.5 91 ----- ----- Basin wide percent of average 94 104 BIGHORN BASIN BALD MTN. 9380 12.6 11.3 112 10.6 9.7 109 BEAR TRAP MEADOW 8200 5.3 2.9 183 6.0 4.8 125 BLACKWATER 9780 15.3 13.7 112 14.0 12.0 117 BONE SPRINGS DIV 9350 12.4 9.0 138 9.6 8.1 119 EVENING STAR 9200 18.7 16.3 115 19.5 14.8 132 GRAVE SPRINGS 8550 4.1 4.8 85 5.3 5.5 96 KIRWIN 9550 8.3 6.7 124 9.4 6.6 142 MARQUETTE 8760 2.6 5.3 49 5.5 5.6 98 MIDDLE POWDER 7760 5.6 6.2 90 5.7 7.3 78 OWL CREEK 8975 3.4 2.9 117 3.5 3.2 109 POWDER RIVER PASS 9480 8.6 6.0 143 9.8 6.8 144 SHELL CREEK 9580 11.6 8.3 140 11.3 7.6 149 SYLVAN LAKE 8420 11.3 12.4 91 13.7 12.4 110 SYLVAN ROAD 7120 9.3 7.3 127 12.2 11.4 107 TIMBER CREEK 7950 2.5 3.2 78 5.5 4.0 138 YOUNTS PEAK 8350 12.9 9.5 136 11.5 9.5 121 ----- ----- Basin wide percent of average 115 118 SHOSHONE RIVER BLACKWATER 9780 15.3 13.7 112 14.0 12.0 117 EVENING STAR 9200 18.7 16.3 115 19.5 14.8 132 KIRWIN 9550 8.3 6.7 124 9.4 6.6 142 MARQUETTE 8760 2.6 5.3 49 5.5 5.6 98 SYLVAN LAKE 8420 11.3 12.4 91 13.7 12.4 110 SYLVAN ROAD 7120 9.3 7.3 127 12.2 11.4 107 YOUNTS PEAK 8350 12.9 9.5 136 11.5 9.5 121 ----- ----- Basin wide percent of average 110 119 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.3 2.9 183 6.0 4.8 125 BIG GOOSE 7990 4.9 5.0 98 7.1 4.8 148 BONE SPRINGS DIV 9350 12.4 9.0 138 9.6 8.1 119 BURGESS JUNCTION 7880 7.3 6.2 118 8.0 6.8 118 CLOUD PEAK RESERVOIR 9860 10.4 6.7 155 10.6 7.0 151 DOME LAKE 8880 7.6 6.8 112 9.5 7.5 127 GRAVE SPRINGS 8550 4.1 4.8 85 5.3 5.5 96 HANSEN SAWMILL 8360 4.0 3.6 111 6.7 4.6 146 MIDDLE POWDER 7760 5.6 6.2 90 5.7 7.3 78 POWDER RIVER PASS 9480 8.6 6.0 143 9.8 6.8 144 SUCKER CREEK 8880 8.8 5.9 149 10.6 7.4 143 TIE CREEK 6870 2.7 3.3 82 8.9 5.7 156 ----- ----- Basin wide percent of average 123 128 BELLE FOURCHE BLIND PARK 6890 5.8 4.2 138 10.2 6.8 150 COLE CANYON 5910 4.0 3.7 108 8.4 4.2 200 NORTH RAPID CREEK 6130 6.2 3.9 159 9.0 5.7 158 ----- ----- Basin wide percent of average 136 165 UPPER N. PLATTE RIVER COLUMBINE 9160 11.9 12.2 98 11.7 13.5 87 DIVIDE PEAK 8880 10.0 10.7 93 12.0 11.4 105 ELK RIVER 8700 11.7 9.0 130 11.9 10.3 116 JOE WRIGHT 10120 12.4 11.1 112 15.5 13.5 115 NORTH FRENCH CREEK 10130 15.3 15.3 100 14.9 13.6 110 OLD BATTLE 10000 15.3 16.5 93 19.1 18.5 103 SAGE CREEK BASIN 7850 4.9 6.2 79 6.7 6.6 102 SOUTH BRUSH CREEK 8440 7.1 5.9 120 8.8 8.9 99 TOWER 10500 -M 23.9 * -M 20.7 * WEBBER SPRINGS 9250 11.9 13.1 91 14.6 15.0 97 WILLOW CREEK PASS 9540 6.7 6.2 108 7.0 7.1 99 ----- ----- Basin wide percent of average 101 103 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 10.5 12.5 84 10.1 11.7 86 CASPER MTN. 7900 4.4 7.7 57 7.1 7.8 91 DEADMAN HILL 10220 8.2 8.7 94 8.7 8.8 99 DEER PARK 9700 5.8 9.0 64 9.5 12.2 78 LAPRELE CREEK 8375 -M 6.1 * -M 6.9 * RENO HILL 8400 5.2 7.3 71 6.4 8.0 80 ROACH 9700 8.2 8.6 95 9.7 9.7 100 SAND LAKE 10050 13.3 16.7 80 12.3 13.3 92 SOUTH PASS 9040 6.5 9.5 68 8.6 10.2 84 WINDY PEAK 7900 3.0 3.8 79 3.6 6.1 59 ----- ----- Basin wide percent of average 78 87 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.2 5.5 113 8.8 8.2 107 DIVIDE PEAK 8880 10.0 10.7 93 12.0 11.4 105 OLD BATTLE 10000 15.3 16.5 93 19.1 18.5 103 SANDSTONE RS 8150 7.6 6.8 112 10.0 10.3 97 WHISKEY PARK 8950 14.3 13.6 105 16.5 15.6 106 ----- ----- Basin wide percent of average 101 104 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.0 7.8 90 7.3 7.5 97 BLIND BULL SUM 8650 15.0 15.1 99 12.7 12.8 99 EAST RIM DIVIDE 7930 5.3 6.8 78 8.2 6.7 122 ELKHART PARK G.S. 9400 7.9 7.2 110 9.3 7.6 122 GROS VENTRE SUMMIT 8750 8.6 7.9 109 9.5 7.2 132 GUNSIGHT PASS 9820 8.3 -M * 9.3 -M * KENDALL R.S. 7740 6.9 7.9 87 9.3 8.0 116 LOOMIS PARK 8240 10.3 9.2 112 12.6 9.7 130 NEW FORK LAKE 8340 7.5 6.2 121 7.4 6.7 110 SNIDER BASIN 8060 8.6 7.9 109 9.4 9.2 102 SPRING CREEK DIVIDE 9000 15.2 14.3 106 16.1 15.2 106 TRIPLE PEAK 8500 15.3 13.6 112 17.0 13.1 130 ----- ----- Basin wide percent of average 104 115 LOWER GREEN RIVER HAMS FORK 7840 5.1 6.5 78 6.2 6.8 91 HEWINTA 9519 3.8 5.0 76 6.6 7.8 85 HICKERSON PARK 9145 1.5 3.4 44 4.1 4.5 91 HOLE-IN-ROCK 9150 2.0 3.1 65 4.0 4.2 95 INDIAN CREEK 9425 12.1 14.4 84 11.9 14.0 85 KELLEY R.S. 8180 7.4 8.7 85 9.2 11.7 79 STEEL CREEK PARK 10200 5.1 7.6 67 8.3 8.5 98 ----- ----- Basin wide percent of average 76 87 UPPER BEAR RIVER BUG LAKE 7950 6.3 10.1 62 9.2 10.6 87 HAYDEN FORK 9212 8.5 7.5 113 11.1 11.4 97 KELLEY R.S. 8180 7.4 8.7 85 9.2 11.7 79 LILY LAKE 9156 6.8 6.4 106 8.6 9.7 89 MONTE CRISTO 8960 12.6 13.5 93 13.6 13.8 99 SALT RIVER SUMMIT 7760 7.3 6.7 109 8.9 10.4 86 TRIAL LAKE 9992 11.2 12.3 91 11.1 13.0 85 ----- ----- 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.