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 21 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.3 11.2 92 16.8 13.4 125 COTTONWOOD CREEK 7670 11.6 12.7 91 14.4 17.1 84 GRAND TARGHEE 9260 28.3 -M * 21.1 -M * GRANITE CREEK 6770 9.0 10.7 84 14.7 12.4 119 GRASSY LAKE 7265 17.2 20.1 86 25.3 22.6 112 GROS VENTRE SUMMIT 8750 8.0 8.7 92 9.4 7.9 119 GUNSIGHT PASS 9820 5.2 -M * 9.1 -M * LEWIS LAKE DIVIDE 7850 18.1 20.2 90 23.7 22.5 105 PHILLIPS BENCH 8200 16.2 16.5 98 19.9 17.6 113 SALT RIVER SUMMIT 7760 5.8 7.9 73 8.0 11.5 70 SNAKE RIVER STATION 6920 9.0 10.9 83 17.0 14.1 121 SPRING CREEK DIVIDE 9000 11.5 15.7 73 12.3 16.7 74 THUMB DIVIDE 7980 8.7 10.3 84 12.2 11.6 105 TOGWOTEE PASS 9580 16.5 15.1 109 18.3 15.3 120 TWO OCEAN PLATEAU 9240 22.1 17.1 129 19.3 16.8 115 WILLOW CREEK 8380 15.6 18.2 86 21.2 19.8 107 ----- ----- Basin wide percent of average 92 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 15.2 14.8 103 14.5 12.6 115 BLACK BEAR 8170 26.5 23.1 115 26.8 23.3 115 CANYON 7870 9.9 8.0 124 13.0 9.8 133 FISHER CREEK 9100 25.6 21.5 119 -M 22.2 * MADISON PLATEAU 7750 16.4 14.7 112 19.9 15.7 127 NORTHEAST ENTRANCE 7350 4.5 6.9 65 8.7 8.1 107 PARKER PEAK 9400 15.3 13.5 113 13.5 10.1 134 SYLVAN LAKE 8420 12.5 13.6 92 17.0 13.4 127 THUMB DIVIDE 7980 8.7 10.3 84 12.2 11.6 105 TWO OCEAN PLATEAU 9240 22.1 17.1 129 19.3 16.8 115 WHISKEY CREEK 6800 10.3 9.9 104 15.6 12.5 125 WHITE MILL 8700 15.9 14.6 109 -M 16.4 * WOLVERINE 7650 5.1 7.7 66 8.1 8.4 96 ----- ----- Basin wide percent of average 107 118 WIND RIVER BURROUGHS CREEK 8750 9.7 9.2 105 12.4 10.3 120 COLD SPRINGS 9630 3.1 5.6 55 6.1 6.7 91 DEER PARK 9700 8.4 10.9 77 11.9 13.3 89 HOBBS PARK 10100 6.8 9.2 74 7.8 7.6 103 LITTLE WARM 9370 5.6 7.1 79 8.3 8.4 99 SOUTH PASS 9040 7.1 10.3 69 10.1 11.1 91 ST. LAWRENCE ALT 8620 3.0 4.5 67 4.9 5.3 92 TOGWOTEE PASS 9580 16.5 15.1 109 18.3 15.3 120 TOWNSEND CREEK 8700 3.9 5.2 75 7.2 6.8 106 ----- ----- Basin wide percent of average 83 103 BIGHORN BASIN BALD MTN. 9380 9.8 12.3 80 9.9 10.8 92 BEAR TRAP MEADOW 8200 5.1 3.2 159 6.1 5.1 120 BLACKWATER 9780 14.3 14.9 96 13.6 13.0 105 BONE SPRINGS DIV 9350 9.3 9.8 95 11.7 8.8 133 EVENING STAR 9200 16.8 17.9 94 19.5 16.1 121 GRAVE SPRINGS 8550 4.9 5.3 92 5.9 6.0 98 KIRWIN 9550 7.6 7.2 106 8.9 7.1 125 MARQUETTE 8760 2.0 5.6 36 5.8 5.9 98 MIDDLE POWDER 7760 5.7 6.7 85 5.7 7.8 73 OWL CREEK 8975 3.2 3.2 100 4.9 3.4 144 POWDER RIVER PASS 9480 7.1 6.6 108 8.9 7.5 119 SHELL CREEK 9580 9.9 9.1 109 10.1 8.4 120 SYLVAN LAKE 8420 12.5 13.6 92 17.0 13.4 127 SYLVAN ROAD 7120 6.3 8.0 79 14.4 12.3 117 TIMBER CREEK 7950 1.7 3.4 50 5.7 4.2 136 YOUNTS PEAK 8350 10.0 10.7 93 11.6 10.4 112 ----- ----- Basin wide percent of average 92 114 SHOSHONE RIVER BLACKWATER 9780 14.3 14.9 96 13.6 13.0 105 EVENING STAR 9200 16.8 17.9 94 19.5 16.1 121 KIRWIN 9550 7.6 7.2 106 8.9 7.1 125 MARQUETTE 8760 2.0 5.6 36 5.8 5.9 98 SYLVAN LAKE 8420 12.5 13.6 92 17.0 13.4 127 SYLVAN ROAD 7120 6.3 8.0 79 14.4 12.3 117 YOUNTS PEAK 8350 10.0 10.7 93 11.6 10.4 112 ----- ----- Basin wide percent of average 89 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.1 3.2 159 6.1 5.1 120 BIG GOOSE 7990 4.7 5.5 85 7.6 5.0 152 BONE SPRINGS DIV 9350 9.3 9.8 95 11.7 8.8 133 BURGESS JUNCTION 7880 6.6 6.8 97 8.4 7.3 115 CLOUD PEAK RESERVOIR 9860 8.3 7.3 114 9.0 7.6 118 DOME LAKE 8880 5.9 7.4 80 9.4 8.1 116 GRAVE SPRINGS 8550 4.9 5.3 92 5.9 6.0 98 HANSEN SAWMILL 8360 3.7 3.9 95 5.8 4.9 118 MIDDLE POWDER 7760 5.7 6.7 85 5.7 7.8 73 POWDER RIVER PASS 9480 7.1 6.6 108 8.9 7.5 119 SUCKER CREEK 8880 7.5 6.6 114 8.9 8.1 110 TIE CREEK 6870 3.3 3.7 89 7.7 6.2 124 ----- ----- Basin wide percent of average 99 115 BELLE FOURCHE BLIND PARK 6890 3.5 4.8 73 5.7 7.3 78 COLE CANYON 5910 2.7 4.1 66 4.2 4.4 95 NORTH RAPID CREEK 6130 -M 4.4 * 4.2 5.9 71 ----- ----- Basin wide percent of average 70 80 UPPER N. PLATTE RIVER COLUMBINE 9160 13.0 14.1 92 15.7 15.0 105 DIVIDE PEAK 8880 13.8 11.8 117 14.1 12.5 113 ELK RIVER 8700 12.3 10.5 117 13.8 11.5 120 JOE WRIGHT 10120 13.0 12.4 105 15.6 14.8 105 NORTH FRENCH CREEK 10130 18.5 16.7 111 18.8 14.9 126 OLD BATTLE 10000 17.9 18.0 99 21.8 20.3 107 SAGE CREEK BASIN 7850 9.9 6.8 146 11.2 7.3 153 SOUTH BRUSH CREEK 8440 7.7 6.6 117 11.1 9.8 113 TOWER 10500 22.0 26.7 82 22.7 22.9 99 WEBBER SPRINGS 9250 13.6 14.4 94 16.6 16.5 101 WILLOW CREEK PASS 9540 9.1 6.8 134 9.8 7.6 129 ----- ----- Basin wide percent of average 104 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.6 13.8 84 12.6 13.0 97 CASPER MTN. 7900 6.0 8.3 72 8.4 8.3 101 DEADMAN HILL 10220 9.6 9.6 100 9.9 9.7 102 DEER PARK 9700 8.4 10.9 77 11.9 13.3 89 LAPRELE CREEK 8375 -M 6.6 * -M 7.5 * RENO HILL 8400 6.5 7.8 83 8.3 8.7 95 ROACH 9700 11.4 9.7 118 13.6 10.6 128 SAND LAKE 10050 15.7 18.2 86 16.0 14.6 110 SOUTH PASS 9040 7.1 10.3 69 10.1 11.1 91 WINDY PEAK 7900 3.9 4.1 95 5.7 6.5 88 ----- ----- Basin wide percent of average 87 101 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.1 6.6 138 10.9 9.0 121 DIVIDE PEAK 8880 13.8 11.8 117 14.1 12.5 113 OLD BATTLE 10000 17.9 18.0 99 21.8 20.3 107 SANDSTONE RS 8150 9.7 8.2 118 13.0 11.4 114 WHISKEY PARK 8950 16.4 15.9 103 20.4 17.6 116 ----- ----- Basin wide percent of average 111 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.3 8.6 85 7.9 8.2 96 BLIND BULL SUM 8650 12.9 16.7 77 10.9 14.0 78 EAST RIM DIVIDE 7930 3.8 7.6 50 6.4 7.4 86 ELKHART PARK G.S. 9400 5.9 7.9 75 7.0 8.2 85 GROS VENTRE SUMMIT 8750 8.0 8.7 92 9.4 7.9 119 GUNSIGHT PASS 9820 5.2 -M * 9.1 -M * KENDALL R.S. 7740 5.6 8.8 64 7.6 8.8 86 LOOMIS PARK 8240 8.2 10.1 81 9.8 10.7 92 NEW FORK LAKE 8340 4.7 6.9 68 5.5 7.3 75 SNIDER BASIN 8060 5.6 8.8 64 7.1 10.1 70 SPRING CREEK DIVIDE 9000 11.5 15.7 73 12.3 16.7 74 TRIPLE PEAK 8500 11.8 15.0 79 14.9 14.6 102 ----- ----- Basin wide percent of average 74 87 LOWER GREEN RIVER HAMS FORK 7840 5.1 7.4 69 5.5 7.6 72 HEWINTA 9519 5.2 5.7 91 10.1 8.5 119 HICKERSON PARK 9145 3.1 3.9 79 5.7 4.8 119 HOLE-IN-ROCK 9150 2.5 3.6 69 5.9 4.4 134 INDIAN CREEK 9425 11.2 15.9 70 10.8 15.3 71 KELLEY R.S. 8180 7.0 9.5 74 9.5 12.7 75 STEEL CREEK PARK 10200 7.4 8.4 88 11.2 9.2 122 ----- ----- Basin wide percent of average 76 94 UPPER BEAR RIVER BUG LAKE 7950 8.1 11.5 70 9.1 11.7 78 HAYDEN FORK 9212 9.2 8.6 107 12.6 12.4 102 KELLEY R.S. 8180 7.0 9.5 74 9.5 12.7 75 LILY LAKE 9156 6.9 7.2 96 10.4 10.5 99 MONTE CRISTO 8960 14.2 15.6 91 14.8 15.2 97 SALT RIVER SUMMIT 7760 5.8 7.9 73 8.0 11.5 70 TRIAL LAKE 9992 -M 13.8 * -M 14.3 * ----- ----- Basin wide percent of average 85 87 ----------------------------------------------------------------------------- -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.