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 10 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.5 9.5 100 12.3 11.8 104 COTTONWOOD CREEK 7670 14.7 11.1 132 18.0 15.3 118 GRAND TARGHEE 9260 21.4 -M * 19.3 -M * GRANITE CREEK 6770 -M 9.0 * -M 10.8 * GRASSY LAKE 7265 16.8 17.1 98 20.3 19.9 102 GROS VENTRE SUMMIT 8750 8.4 7.7 109 9.2 7.1 130 GUNSIGHT PASS 9820 8.1 -M * 9.1 -M * LEWIS LAKE DIVIDE 7850 15.2 17.1 89 19.7 19.9 99 PHILLIPS BENCH 8200 15.4 14.4 107 17.6 15.4 114 SALT RIVER SUMMIT 7760 6.9 6.4 108 8.6 10.2 84 SNAKE RIVER STATION 6920 9.0 9.1 99 13.2 12.4 106 SPRING CREEK DIVIDE 9000 14.6 13.9 105 15.6 14.8 105 THUMB DIVIDE 7980 10.0 8.8 114 11.9 10.3 116 TOGWOTEE PASS 9580 17.2 13.2 130 18.7 13.5 139 TWO OCEAN PLATEAU 9240 21.8 15.1 144 16.8 15.0 112 WILLOW CREEK 8380 17.8 16.1 111 22.2 17.5 127 ----- ----- Basin wide percent of average 111 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 13.6 13.0 105 12.5 11.2 112 BLACK BEAR 8170 18.2 19.8 92 20.0 20.2 99 CANYON 7870 7.2 7.1 101 8.1 8.7 93 FISHER CREEK 9100 21.8 18.7 117 20.7 19.5 106 MADISON PLATEAU 7750 10.7 12.8 84 12.7 13.9 91 NORTHEAST ENTRANCE 7350 6.0 5.8 103 8.5 7.2 118 PARKER PEAK 9400 15.2 11.9 128 -M 9.1 * SYLVAN LAKE 8420 10.9 11.9 92 13.3 12.1 110 THUMB DIVIDE 7980 10.0 8.8 114 11.9 10.3 116 TWO OCEAN PLATEAU 9240 21.8 15.1 144 16.8 15.0 112 WHISKEY CREEK 6800 7.6 8.6 88 10.6 11.1 95 WHITE MILL 8700 14.2 12.7 112 14.3 14.4 99 WOLVERINE 7650 7.1 6.6 108 7.1 7.7 92 ----- ----- Basin wide percent of average 108 103 WIND RIVER BURROUGHS CREEK 8750 10.7 7.8 137 11.5 9.1 126 COLD SPRINGS 9630 4.4 5.0 88 6.2 6.1 102 DEER PARK 9700 5.7 7.5 76 9.5 12.0 79 HOBBS PARK 10100 6.6 8.2 80 6.8 6.9 99 LITTLE WARM 9370 6.4 6.1 105 8.3 7.5 111 SOUTH PASS 9040 6.3 9.0 70 8.8 10.0 88 ST. LAWRENCE ALT 8620 1.5 4.0 38 4.6 4.9 94 TOGWOTEE PASS 9580 17.2 13.2 130 18.7 13.5 139 TOWNSEND CREEK 8700 3.6 4.7 77 5.8 6.4 91 ----- ----- Basin wide percent of average 95 105 BIGHORN BASIN BALD MTN. 9380 12.4 10.9 114 10.5 9.5 111 BEAR TRAP MEADOW 8200 5.2 2.8 186 6.0 4.8 125 BLACKWATER 9780 15.0 13.3 113 13.6 11.8 115 BONE SPRINGS DIV 9350 12.0 8.7 138 9.4 8.0 118 EVENING STAR 9200 18.2 15.7 116 18.9 14.5 130 GRAVE SPRINGS 8550 3.5 4.7 74 5.0 5.4 93 KIRWIN 9550 8.1 6.4 127 9.1 6.4 142 MARQUETTE 8760 2.6 5.2 50 5.4 5.6 96 MIDDLE POWDER 7760 5.3 6.1 87 5.6 7.2 78 OWL CREEK 8975 3.3 2.8 118 3.4 3.1 110 POWDER RIVER PASS 9480 8.5 5.9 144 9.6 6.7 143 SHELL CREEK 9580 11.3 8.2 138 11.2 7.4 151 SYLVAN LAKE 8420 10.9 11.9 92 13.3 12.1 110 SYLVAN ROAD 7120 8.8 7.0 126 11.7 11.1 105 TIMBER CREEK 7950 2.4 3.2 75 5.6 3.9 144 YOUNTS PEAK 8350 12.5 9.1 137 11.3 9.3 122 ----- ----- Basin wide percent of average 115 118 SHOSHONE RIVER BLACKWATER 9780 15.0 13.3 113 13.6 11.8 115 EVENING STAR 9200 18.2 15.7 116 18.9 14.5 130 KIRWIN 9550 8.1 6.4 127 9.1 6.4 142 MARQUETTE 8760 2.6 5.2 50 5.4 5.6 96 SYLVAN LAKE 8420 10.9 11.9 92 13.3 12.1 110 SYLVAN ROAD 7120 8.8 7.0 126 11.7 11.1 105 YOUNTS PEAK 8350 12.5 9.1 137 11.3 9.3 122 ----- ----- Basin wide percent of average 111 118 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.2 2.8 186 6.0 4.8 125 BIG GOOSE 7990 4.5 4.9 92 6.7 4.8 140 BONE SPRINGS DIV 9350 12.0 8.7 138 9.4 8.0 118 BURGESS JUNCTION 7880 6.8 6.0 113 7.6 6.6 115 CLOUD PEAK RESERVOIR 9860 9.8 6.4 153 9.7 6.9 141 DOME LAKE 8880 7.4 6.6 112 9.2 7.4 124 GRAVE SPRINGS 8550 3.5 4.7 74 5.0 5.4 93 HANSEN SAWMILL 8360 3.8 3.5 109 6.4 4.6 139 MIDDLE POWDER 7760 5.3 6.1 87 5.6 7.2 78 POWDER RIVER PASS 9480 8.5 5.9 144 9.6 6.7 143 SUCKER CREEK 8880 8.4 5.7 147 10.2 7.3 140 TIE CREEK 6870 2.2 3.1 71 8.4 5.6 150 ----- ----- Basin wide percent of average 120 125 BELLE FOURCHE BLIND PARK 6890 -M 4.2 * 9.9 6.7 148 COLE CANYON 5910 3.8 3.6 106 8.4 4.2 200 NORTH RAPID CREEK 6130 5.8 3.8 153 8.8 5.6 157 ----- ----- Basin wide percent of average 130 164 UPPER N. PLATTE RIVER COLUMBINE 9160 11.2 11.8 95 11.1 13.1 85 DIVIDE PEAK 8880 9.7 10.4 93 11.9 11.2 106 ELK RIVER 8700 11.1 8.7 128 11.4 10.1 113 JOE WRIGHT 10120 12.2 10.9 112 15.3 13.2 116 NORTH FRENCH CREEK 10130 14.9 14.9 100 14.7 13.4 110 OLD BATTLE 10000 14.9 16.1 93 18.7 18.0 104 SAGE CREEK BASIN 7850 4.7 6.0 78 6.6 6.5 102 SOUTH BRUSH CREEK 8440 7.0 5.8 121 8.7 8.7 100 TOWER 10500 -M 23.3 * -M 20.2 * WEBBER SPRINGS 9250 11.5 12.8 90 14.3 14.6 98 WILLOW CREEK PASS 9540 6.5 6.1 107 6.9 7.0 99 ----- ----- Basin wide percent of average 100 103 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 10.2 12.2 84 9.8 11.4 86 CASPER MTN. 7900 4.0 7.5 53 6.8 7.7 88 DEADMAN HILL 10220 8.0 8.5 94 8.6 8.7 99 DEER PARK 9700 5.7 7.5 76 9.5 12.0 79 LAPRELE CREEK 8375 -M 5.9 * -M 6.8 * RENO HILL 8400 4.9 7.1 69 6.1 7.8 78 ROACH 9700 8.0 8.4 95 9.4 9.5 99 SAND LAKE 10050 13.1 16.4 80 12.0 12.9 93 SOUTH PASS 9040 6.3 9.0 70 8.8 10.0 88 WINDY PEAK 7900 2.5 3.7 68 3.5 6.0 58 ----- ----- Basin wide percent of average 78 87 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.8 5.2 112 8.6 8.0 108 DIVIDE PEAK 8880 9.7 10.4 93 11.9 11.2 106 OLD BATTLE 10000 14.9 16.1 93 18.7 18.0 104 SANDSTONE RS 8150 7.3 6.5 112 9.8 10.0 98 WHISKEY PARK 8950 13.7 13.1 105 15.9 15.2 105 ----- ----- Basin wide percent of average 100 104 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.7 7.7 87 6.9 7.3 95 BLIND BULL SUM 8650 14.3 14.8 97 12.4 12.5 99 EAST RIM DIVIDE 7930 5.0 6.7 75 8.0 6.5 123 ELKHART PARK G.S. 9400 7.7 7.0 110 9.1 7.4 123 GROS VENTRE SUMMIT 8750 8.4 7.7 109 9.2 7.1 130 GUNSIGHT PASS 9820 8.1 -M * 9.1 -M * KENDALL R.S. 7740 6.7 7.6 88 9.2 7.8 118 LOOMIS PARK 8240 10.0 9.0 111 12.3 9.5 129 NEW FORK LAKE 8340 7.3 6.1 120 7.1 6.6 108 SNIDER BASIN 8060 8.2 7.7 106 9.1 9.0 101 SPRING CREEK DIVIDE 9000 14.6 13.9 105 15.6 14.8 105 TRIPLE PEAK 8500 14.7 13.3 111 16.4 12.8 128 ----- ----- Basin wide percent of average 102 114 LOWER GREEN RIVER HAMS FORK 7840 4.8 6.3 76 6.0 6.6 91 HEWINTA 9519 3.4 4.8 71 6.5 7.6 86 HICKERSON PARK 9145 1.3 3.3 39 3.9 4.5 87 HOLE-IN-ROCK 9150 1.8 3.1 58 4.0 4.1 98 INDIAN CREEK 9425 11.8 14.0 84 11.6 13.7 85 KELLEY R.S. 8180 7.2 8.5 85 8.9 11.4 78 STEEL CREEK PARK 10200 4.8 7.4 65 8.2 8.3 99 ----- ----- Basin wide percent of average 74 87 UPPER BEAR RIVER BUG LAKE 7950 6.3 9.7 65 9.0 10.3 87 HAYDEN FORK 9212 8.4 7.3 115 10.9 11.1 98 KELLEY R.S. 8180 7.2 8.5 85 8.9 11.4 78 LILY LAKE 9156 6.5 6.2 105 8.5 9.5 89 MONTE CRISTO 8960 12.4 13.1 95 13.5 13.5 100 SALT RIVER SUMMIT 7760 6.9 6.4 108 8.6 10.2 84 TRIAL LAKE 9992 10.9 12.0 91 11.0 12.7 87 ----- ----- Basin wide percent of average 93 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.