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 SATURDAY: JANUARY 3 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 8.0 8.5 94 10.4 10.7 97 COTTONWOOD CREEK 7670 11.5 10.0 115 14.7 13.9 106 GRAND TARGHEE 9260 18.0 -M * 17.2 -M * GRANITE CREEK 6770 -M 7.9 * -M 9.8 * GRASSY LAKE 7265 14.3 15.2 94 17.9 17.9 100 GROS VENTRE SUMMIT 8750 8.1 7.1 114 9.1 6.5 140 GUNSIGHT PASS 9820 7.1 -M * 8.1 -M * LEWIS LAKE DIVIDE 7850 13.1 15.3 86 17.5 18.0 97 PHILLIPS BENCH 8200 13.6 13.0 105 16.0 13.9 115 SALT RIVER SUMMIT 7760 5.6 5.6 100 7.3 9.2 79 SNAKE RIVER STATION 6920 6.9 8.1 85 11.2 11.3 99 SPRING CREEK DIVIDE 9000 12.0 12.8 94 13.1 13.4 98 THUMB DIVIDE 7980 9.2 7.9 116 11.2 9.3 120 TOGWOTEE PASS 9580 14.5 12.0 121 15.8 12.4 127 TWO OCEAN PLATEAU 9240 19.3 13.8 140 15.2 13.8 110 WILLOW CREEK 8380 14.1 14.7 96 18.6 16.0 116 ----- ----- Basin wide percent of average 104 107 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 11.0 11.8 93 10.0 10.3 97 BLACK BEAR 8170 16.8 17.8 94 18.7 18.2 103 CANYON 7870 6.3 6.3 100 7.0 8.0 88 FISHER CREEK 9100 18.3 16.7 110 17.5 17.6 99 MADISON PLATEAU 7750 9.9 11.6 85 11.9 12.7 94 NORTHEAST ENTRANCE 7350 4.5 5.1 88 7.0 6.6 106 PARKER PEAK 9400 12.9 10.9 118 -M 8.4 * SYLVAN LAKE 8420 9.0 10.9 83 11.3 11.2 101 THUMB DIVIDE 7980 9.2 7.9 116 11.2 9.3 120 TWO OCEAN PLATEAU 9240 19.3 13.8 140 15.2 13.8 110 WHISKEY CREEK 6800 7.0 7.7 91 9.8 10.2 96 WHITE MILL 8700 11.6 11.4 102 11.9 13.2 90 WOLVERINE 7650 5.1 5.9 86 5.9 7.2 82 ----- ----- Basin wide percent of average 102 99 WIND RIVER BURROUGHS CREEK 8750 9.1 6.9 132 9.8 8.2 120 COLD SPRINGS 9630 4.1 4.7 87 5.8 5.8 100 DEER PARK 9700 5.8 7.0 83 9.3 11.1 84 HOBBS PARK 10100 6.5 7.8 83 6.7 6.5 103 LITTLE WARM 9370 5.6 5.5 102 7.4 6.9 107 SOUTH PASS 9040 6.4 8.3 77 8.4 9.4 89 ST. LAWRENCE ALT 8620 1.7 3.8 45 4.6 4.7 98 TOGWOTEE PASS 9580 14.5 12.0 121 15.8 12.4 127 TOWNSEND CREEK 8700 3.8 4.4 86 5.8 6.1 95 ----- ----- Basin wide percent of average 95 104 BIGHORN BASIN BALD MTN. 9380 10.4 9.9 105 9.2 8.7 106 BEAR TRAP MEADOW 8200 4.1 2.6 158 5.2 4.6 113 BLACKWATER 9780 12.6 12.3 102 11.5 11.0 105 BONE SPRINGS DIV 9350 10.1 8.0 126 7.9 7.4 107 EVENING STAR 9200 14.3 14.1 101 14.9 13.3 112 GRAVE SPRINGS 8550 3.2 4.2 76 4.6 5.0 92 KIRWIN 9550 7.6 6.0 127 8.4 6.0 140 MARQUETTE 8760 2.3 5.0 46 5.0 5.4 93 MIDDLE POWDER 7760 4.3 5.6 77 5.0 6.9 72 OWL CREEK 8975 3.3 2.7 122 3.4 3.0 113 POWDER RIVER PASS 9480 6.6 5.4 122 7.7 6.1 126 SHELL CREEK 9580 9.0 7.5 120 8.7 6.9 126 SYLVAN LAKE 8420 9.0 10.9 83 11.3 11.2 101 SYLVAN ROAD 7120 6.4 6.4 100 9.1 10.3 88 TIMBER CREEK 7950 2.4 3.0 80 4.8 3.8 126 YOUNTS PEAK 8350 10.8 8.1 133 9.8 8.4 117 ----- ----- Basin wide percent of average 104 107 SHOSHONE RIVER BLACKWATER 9780 12.6 12.3 102 11.5 11.0 105 EVENING STAR 9200 14.3 14.1 101 14.9 13.3 112 KIRWIN 9550 7.6 6.0 127 8.4 6.0 140 MARQUETTE 8760 2.3 5.0 46 5.0 5.4 93 SYLVAN LAKE 8420 9.0 10.9 83 11.3 11.2 101 SYLVAN ROAD 7120 6.4 6.4 100 9.1 10.3 88 YOUNTS PEAK 8350 10.8 8.1 133 9.8 8.4 117 ----- ----- Basin wide percent of average 100 107 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.1 2.6 158 5.2 4.6 113 BIG GOOSE 7990 4.3 4.5 96 6.4 4.6 139 BONE SPRINGS DIV 9350 10.1 8.0 126 7.9 7.4 107 BURGESS JUNCTION 7880 6.3 5.6 112 7.1 6.2 115 CLOUD PEAK RESERVOIR 9860 8.5 5.8 147 8.9 6.5 137 DOME LAKE 8880 6.8 6.2 110 8.4 7.0 120 GRAVE SPRINGS 8550 3.2 4.2 76 4.6 5.0 92 HANSEN SAWMILL 8360 3.3 3.3 100 5.8 4.4 132 MIDDLE POWDER 7760 4.3 5.6 77 5.0 6.9 72 POWDER RIVER PASS 9480 6.6 5.4 122 7.7 6.1 126 SUCKER CREEK 8880 7.8 5.4 144 9.5 6.8 140 TIE CREEK 6870 2.0 2.6 77 8.1 5.2 156 ----- ----- Basin wide percent of average 114 120 BELLE FOURCHE BLIND PARK 6890 4.7 3.7 127 8.7 6.3 138 COLE CANYON 5910 3.3 3.4 97 7.2 4.0 180 NORTH RAPID CREEK 6130 5.1 3.4 150 8.2 5.4 152 ----- ----- Basin wide percent of average 125 154 UPPER N. PLATTE RIVER COLUMBINE 9160 8.6 10.4 83 9.2 11.9 77 DIVIDE PEAK 8880 8.0 9.5 84 10.3 10.3 100 ELK RIVER 8700 8.6 7.6 113 9.6 9.1 105 JOE WRIGHT 10120 10.9 9.9 110 13.5 12.2 111 NORTH FRENCH CREEK 10130 12.3 13.7 90 12.2 12.3 99 OLD BATTLE 10000 13.0 15.0 87 16.2 16.4 99 SAGE CREEK BASIN 7850 4.1 5.5 75 6.0 6.0 100 SOUTH BRUSH CREEK 8440 6.0 5.3 113 7.8 8.0 98 TOWER 10500 13.8 21.2 65 16.5 18.4 90 WEBBER SPRINGS 9250 10.1 11.8 86 12.7 13.4 95 WILLOW CREEK PASS 9540 6.0 5.7 105 6.6 6.6 100 ----- ----- Basin wide percent of average 88 97 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 8.3 11.1 75 8.2 10.4 79 CASPER MTN. 7900 3.8 7.1 54 6.4 7.3 88 DEADMAN HILL 10220 6.9 7.8 88 7.4 8.0 92 DEER PARK 9700 5.8 7.0 83 9.3 11.1 84 LAPRELE CREEK 8375 -M 5.5 * -M 6.3 * RENO HILL 8400 4.1 6.7 61 5.5 7.3 75 ROACH 9700 7.0 7.6 92 8.3 8.7 95 SAND LAKE 10050 11.2 15.3 73 10.3 11.9 87 SOUTH PASS 9040 6.4 8.3 77 8.4 9.4 89 WINDY PEAK 7900 2.4 3.5 69 3.3 5.7 58 ----- ----- Basin wide percent of average 75 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.4 4.3 102 7.2 7.3 99 DIVIDE PEAK 8880 8.0 9.5 84 10.3 10.3 100 OLD BATTLE 10000 13.0 15.0 87 16.2 16.4 99 SANDSTONE RS 8150 5.9 5.5 107 8.3 9.2 90 WHISKEY PARK 8950 10.4 11.5 90 12.9 13.6 95 ----- ----- Basin wide percent of average 91 97 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.4 7.1 90 6.7 6.7 100 BLIND BULL SUM 8650 11.9 13.5 88 11.1 11.4 97 EAST RIM DIVIDE 7930 4.4 6.1 72 7.4 5.9 125 ELKHART PARK G.S. 9400 7.3 6.5 112 8.8 6.9 128 GROS VENTRE SUMMIT 8750 8.1 7.1 114 9.1 6.5 140 GUNSIGHT PASS 9820 7.1 -M * 8.1 -M * KENDALL R.S. 7740 6.4 6.9 93 8.8 7.1 124 LOOMIS PARK 8240 8.7 8.2 106 11.0 8.6 128 NEW FORK LAKE 8340 6.7 5.5 122 6.5 6.1 107 SNIDER BASIN 8060 6.6 7.1 93 7.7 8.2 94 SPRING CREEK DIVIDE 9000 12.0 12.8 94 13.1 13.4 98 TRIPLE PEAK 8500 12.1 12.2 99 13.6 11.6 117 ----- ----- Basin wide percent of average 97 112 LOWER GREEN RIVER HAMS FORK 7840 3.9 5.7 68 5.5 6.0 92 HEWINTA 9519 2.5 4.3 58 5.6 7.1 79 HICKERSON PARK 9145 1.2 3.0 40 3.9 4.3 91 HOLE-IN-ROCK 9150 1.7 2.7 63 3.9 3.9 100 INDIAN CREEK 9425 10.5 12.8 82 10.6 12.5 85 KELLEY R.S. 8180 6.6 7.8 85 8.3 10.4 80 STEEL CREEK PARK 10200 3.9 6.8 57 7.1 7.7 92 ----- ----- Basin wide percent of average 70 87 UPPER BEAR RIVER BUG LAKE 7950 5.0 8.6 58 7.8 9.4 83 HAYDEN FORK 9212 7.1 6.5 109 9.7 10.2 95 KELLEY R.S. 8180 6.6 7.8 85 8.3 10.4 80 LILY LAKE 9156 5.7 5.6 102 7.6 8.8 86 MONTE CRISTO 8960 10.8 11.5 94 11.9 12.4 96 SALT RIVER SUMMIT 7760 5.6 5.6 100 7.3 9.2 79 TRIAL LAKE 9992 9.8 10.8 91 10.1 11.6 87 ----- ----- Basin wide percent of average 90 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.