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 THURSDAY: JANUARY 31 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 11.8 12.6 94 18.3 14.7 124 COTTONWOOD CREEK 7670 14.0 14.1 99 16.6 18.5 90 GRAND TARGHEE 9260 31.7 -M * 22.5 -M * GRANITE CREEK 6770 10.5 12.2 86 16.1 13.6 118 GRASSY LAKE 7265 19.1 22.7 84 27.1 24.8 109 GROS VENTRE SUMMIT 8750 8.8 9.4 94 10.2 8.6 119 GUNSIGHT PASS 9820 6.0 -M * 9.9 -M * LEWIS LAKE DIVIDE 7850 20.1 22.8 88 25.9 24.7 105 PHILLIPS BENCH 8200 18.8 18.4 102 22.1 19.4 114 SALT RIVER SUMMIT 7760 7.1 9.1 78 9.3 12.5 74 SNAKE RIVER STATION 6920 10.3 12.5 82 18.4 15.4 119 SPRING CREEK DIVIDE 9000 13.3 17.2 77 13.9 18.2 76 THUMB DIVIDE 7980 10.8 11.6 93 13.9 12.6 110 TOGWOTEE PASS 9580 18.0 16.7 108 19.8 16.7 119 TWO OCEAN PLATEAU 9240 24.7 18.8 131 21.1 18.3 115 WILLOW CREEK 8380 17.7 20.1 88 23.1 21.6 107 ----- ----- Basin wide percent of average 94 107 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 16.6 16.1 103 15.8 13.9 114 BLACK BEAR 8170 31.2 25.4 123 30.0 25.9 116 CANYON 7870 11.4 8.9 128 14.5 10.7 136 FISHER CREEK 9100 28.1 23.6 119 -M 24.4 * MADISON PLATEAU 7750 19.6 16.1 122 23.0 17.3 133 NORTHEAST ENTRANCE 7350 5.3 7.7 69 9.2 8.8 105 PARKER PEAK 9400 16.9 14.7 115 -M 11.0 * SYLVAN LAKE 8420 13.9 15.0 93 18.5 14.7 126 THUMB DIVIDE 7980 10.8 11.6 93 13.9 12.6 110 TWO OCEAN PLATEAU 9240 24.7 18.8 131 21.1 18.3 115 WHISKEY CREEK 6800 12.4 11.0 113 18.0 13.7 131 WHITE MILL 8700 17.4 15.9 109 -M 18.1 * WOLVERINE 7650 5.9 8.6 69 8.9 9.1 98 ----- ----- Basin wide percent of average 111 119 WIND RIVER BURROUGHS CREEK 8750 10.5 10.1 104 13.2 11.2 118 COLD SPRINGS 9630 3.9 6.0 65 6.8 7.1 96 DEER PARK 9700 9.0 11.7 77 12.9 14.4 90 HOBBS PARK 10100 8.2 9.8 84 8.8 8.1 109 LITTLE WARM 9370 6.5 7.7 84 9.4 9.0 104 SOUTH PASS 9040 7.7 11.3 68 10.8 12.1 89 ST. LAWRENCE ALT 8620 3.5 4.7 74 5.5 5.7 96 TOGWOTEE PASS 9580 18.0 16.7 108 19.8 16.7 119 TOWNSEND CREEK 8700 4.4 5.6 79 7.7 7.2 107 ----- ----- Basin wide percent of average 86 104 BIGHORN BASIN BALD MTN. 9380 10.5 13.4 78 10.6 11.7 91 BEAR TRAP MEADOW 8200 5.5 3.5 157 6.3 5.5 115 BLACKWATER 9780 16.4 16.4 100 15.4 14.1 109 BONE SPRINGS DIV 9350 10.1 10.5 96 12.3 9.5 129 EVENING STAR 9200 18.7 19.5 96 21.3 17.5 122 GRAVE SPRINGS 8550 5.4 5.6 96 5.9 6.4 92 KIRWIN 9550 8.5 7.6 112 9.9 7.6 130 MARQUETTE 8760 2.2 5.9 37 6.1 6.2 98 MIDDLE POWDER 7760 6.2 7.1 87 6.0 8.2 73 OWL CREEK 8975 3.4 3.4 100 5.0 3.7 135 POWDER RIVER PASS 9480 7.7 7.2 107 9.6 8.2 117 SHELL CREEK 9580 10.5 9.9 106 10.6 9.2 115 SYLVAN LAKE 8420 13.9 15.0 93 18.5 14.7 126 SYLVAN ROAD 7120 7.2 8.6 84 15.6 13.2 118 TIMBER CREEK 7950 1.8 3.6 50 5.7 4.5 127 YOUNTS PEAK 8350 11.2 11.9 94 12.2 11.3 108 ----- ----- Basin wide percent of average 93 113 SHOSHONE RIVER BLACKWATER 9780 16.4 16.4 100 15.4 14.1 109 EVENING STAR 9200 18.7 19.5 96 21.3 17.5 122 KIRWIN 9550 8.5 7.6 112 9.9 7.6 130 MARQUETTE 8760 2.2 5.9 37 6.1 6.2 98 SYLVAN LAKE 8420 13.9 15.0 93 18.5 14.7 126 SYLVAN ROAD 7120 7.2 8.6 84 15.6 13.2 118 YOUNTS PEAK 8350 11.2 11.9 94 12.2 11.3 108 ----- ----- Basin wide percent of average 92 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 3.5 157 6.3 5.5 115 BIG GOOSE 7990 5.2 5.9 88 8.0 5.6 143 BONE SPRINGS DIV 9350 10.1 10.5 96 12.3 9.5 129 BURGESS JUNCTION 7880 7.1 7.4 96 9.0 7.8 115 CLOUD PEAK RESERVOIR 9860 9.2 8.0 115 9.9 8.1 122 DOME LAKE 8880 6.5 7.9 82 9.9 8.6 115 GRAVE SPRINGS 8550 5.4 5.6 96 5.9 6.4 92 HANSEN SAWMILL 8360 4.1 4.2 98 6.2 5.3 117 MIDDLE POWDER 7760 6.2 7.1 87 6.0 8.2 73 POWDER RIVER PASS 9480 7.7 7.2 107 9.6 8.2 117 SUCKER CREEK 8880 8.3 7.1 117 10.0 8.7 115 TIE CREEK 6870 3.8 4.0 95 7.8 6.8 115 ----- ----- Basin wide percent of average 101 114 BELLE FOURCHE BLIND PARK 6890 3.6 5.2 69 6.4 7.8 82 COLE CANYON 5910 3.2 4.4 73 4.6 4.7 98 NORTH RAPID CREEK 6130 4.2 4.9 86 4.6 6.3 73 ----- ----- Basin wide percent of average 76 83 UPPER N. PLATTE RIVER COLUMBINE 9160 15.6 16.2 96 18.0 16.5 109 DIVIDE PEAK 8880 15.2 12.9 118 15.6 13.6 115 ELK RIVER 8700 14.7 12.1 121 14.8 12.6 117 JOE WRIGHT 10120 14.5 13.7 106 17.2 16.1 107 NORTH FRENCH CREEK 10130 20.3 18.3 111 20.3 16.2 125 OLD BATTLE 10000 21.0 19.9 106 25.0 22.2 113 SAGE CREEK BASIN 7850 11.5 7.5 153 13.0 7.9 165 SOUTH BRUSH CREEK 8440 8.5 7.3 116 11.7 10.8 108 TOWER 10500 25.9 29.8 87 26.5 25.2 105 WEBBER SPRINGS 9250 16.1 15.9 101 19.3 17.9 108 WILLOW CREEK PASS 9540 10.6 7.5 141 10.9 8.3 131 ----- ----- Basin wide percent of average 108 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.0 15.2 86 14.0 14.1 99 CASPER MTN. 7900 6.6 9.0 73 9.1 8.9 102 DEADMAN HILL 10220 10.7 10.5 102 11.2 10.5 107 DEER PARK 9700 9.0 11.7 77 12.9 14.4 90 LAPRELE CREEK 8375 -M 7.2 * -M 8.1 * RENO HILL 8400 7.1 8.4 85 8.9 9.3 96 ROACH 9700 12.7 10.9 117 15.1 11.6 130 SAND LAKE 10050 17.5 19.8 88 17.6 15.8 111 SOUTH PASS 9040 7.7 11.3 68 10.8 12.1 89 WINDY PEAK 7900 4.7 4.5 104 6.3 6.9 91 ----- ----- Basin wide percent of average 88 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.2 7.7 132 11.8 9.8 120 DIVIDE PEAK 8880 15.2 12.9 118 15.6 13.6 115 OLD BATTLE 10000 21.0 19.9 106 25.0 22.2 113 SANDSTONE RS 8150 11.4 9.6 119 14.4 12.4 116 WHISKEY PARK 8950 18.9 18.3 103 22.0 19.2 115 ----- ----- Basin wide percent of average 112 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 8.0 9.4 85 8.4 8.9 94 BLIND BULL SUM 8650 14.4 18.3 79 12.0 15.3 78 EAST RIM DIVIDE 7930 4.6 8.4 55 7.0 8.0 88 ELKHART PARK G.S. 9400 6.7 8.7 77 7.7 8.8 88 GROS VENTRE SUMMIT 8750 8.8 9.4 94 10.2 8.6 119 GUNSIGHT PASS 9820 6.0 -M * 9.9 -M * KENDALL R.S. 7740 6.8 9.7 70 8.9 9.7 92 LOOMIS PARK 8240 9.5 11.1 86 11.0 11.7 94 NEW FORK LAKE 8340 5.4 7.6 71 5.9 7.8 76 SNIDER BASIN 8060 7.1 9.7 73 8.4 11.0 76 SPRING CREEK DIVIDE 9000 13.3 17.2 77 13.9 18.2 76 TRIPLE PEAK 8500 13.6 16.5 82 16.7 16.0 104 ----- ----- Basin wide percent of average 78 89 LOWER GREEN RIVER HAMS FORK 7840 6.3 8.3 76 6.2 8.3 75 HEWINTA 9519 6.2 6.6 94 11.0 9.2 120 HICKERSON PARK 9145 3.0 4.4 68 5.6 5.2 108 HOLE-IN-ROCK 9150 2.7 4.1 66 6.2 4.7 132 INDIAN CREEK 9425 13.4 17.4 77 12.6 16.7 75 KELLEY R.S. 8180 8.1 10.6 76 10.7 13.8 78 STEEL CREEK PARK 10200 8.3 9.3 89 12.2 10.1 121 ----- ----- Basin wide percent of average 79 95 UPPER BEAR RIVER BUG LAKE 7950 9.7 13.0 75 10.3 12.8 80 HAYDEN FORK 9212 11.4 9.7 118 15.1 13.5 112 KELLEY R.S. 8180 8.1 10.6 76 10.7 13.8 78 LILY LAKE 9156 -M 8.1 * -M 11.4 * MONTE CRISTO 8960 17.1 18.0 95 17.3 16.6 104 SALT RIVER SUMMIT 7760 7.1 9.1 78 9.3 12.5 74 TRIAL LAKE 9992 12.1 15.5 78 15.2 15.7 97 ----- ----- Basin wide percent of average 86 92 ----------------------------------------------------------------------------- -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.