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 28 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 11.3 12.2 93 17.7 14.4 123 COTTONWOOD CREEK 7670 12.4 13.7 91 15.1 18.2 83 GRAND TARGHEE 9260 30.8 -M * 21.9 -M * GRANITE CREEK 6770 9.8 11.8 83 15.4 13.3 116 GRASSY LAKE 7265 18.1 22.0 82 26.1 24.2 108 GROS VENTRE SUMMIT 8750 8.6 9.2 93 9.8 8.4 117 GUNSIGHT PASS 9820 5.8 -M * 9.6 -M * LEWIS LAKE DIVIDE 7850 19.4 22.1 88 25.3 24.0 105 PHILLIPS BENCH 8200 17.6 17.8 99 21.3 18.9 113 SALT RIVER SUMMIT 7760 6.5 8.8 74 8.7 12.2 71 SNAKE RIVER STATION 6920 9.9 12.0 82 17.7 15.0 118 SPRING CREEK DIVIDE 9000 12.5 16.7 75 13.2 17.8 74 THUMB DIVIDE 7980 9.9 11.2 88 13.3 12.3 108 TOGWOTEE PASS 9580 17.4 16.3 107 19.3 16.3 118 TWO OCEAN PLATEAU 9240 23.4 18.3 128 19.9 17.9 111 WILLOW CREEK 8380 16.1 19.5 83 21.9 21.1 104 ----- ----- Basin wide percent of average 91 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 16.1 15.8 102 15.3 13.5 113 BLACK BEAR 8170 29.4 24.8 119 28.7 25.1 114 CANYON 7870 10.6 8.6 123 13.8 10.5 131 FISHER CREEK 9100 26.9 23.0 117 -M 23.8 * MADISON PLATEAU 7750 18.4 15.7 117 21.9 16.9 130 NORTHEAST ENTRANCE 7350 5.0 7.4 68 9.0 8.6 105 PARKER PEAK 9400 16.1 14.3 113 -M 10.7 * SYLVAN LAKE 8420 13.4 14.5 92 17.8 14.3 124 THUMB DIVIDE 7980 9.9 11.2 88 13.3 12.3 108 TWO OCEAN PLATEAU 9240 23.4 18.3 128 19.9 17.9 111 WHISKEY CREEK 6800 11.7 10.8 108 17.3 13.4 129 WHITE MILL 8700 16.7 15.6 107 -M 17.6 * WOLVERINE 7650 5.4 8.4 64 8.9 8.9 100 ----- ----- Basin wide percent of average 108 117 WIND RIVER BURROUGHS CREEK 8750 10.1 9.8 103 12.8 10.9 117 COLD SPRINGS 9630 3.7 5.9 63 6.5 6.9 94 DEER PARK 9700 8.9 11.6 77 12.6 14.1 89 HOBBS PARK 10100 7.7 9.6 80 8.7 8.0 109 LITTLE WARM 9370 6.0 7.6 79 8.9 8.9 100 SOUTH PASS 9040 7.9 11.0 72 10.5 11.8 89 ST. LAWRENCE ALT 8620 3.5 4.7 74 5.3 5.5 96 TOGWOTEE PASS 9580 17.4 16.3 107 19.3 16.3 118 TOWNSEND CREEK 8700 4.4 5.5 80 7.3 7.1 103 ----- ----- Basin wide percent of average 85 103 BIGHORN BASIN BALD MTN. 9380 10.2 13.0 78 10.6 11.4 93 BEAR TRAP MEADOW 8200 5.5 3.4 162 6.4 5.4 119 BLACKWATER 9780 15.1 16.1 94 14.6 13.8 106 BONE SPRINGS DIV 9350 9.6 10.3 93 12.3 9.3 132 EVENING STAR 9200 18.1 19.2 94 20.8 17.1 122 GRAVE SPRINGS 8550 5.3 5.5 96 5.9 6.3 94 KIRWIN 9550 8.2 7.5 109 9.5 7.4 128 MARQUETTE 8760 2.2 5.8 38 6.5 6.1 107 MIDDLE POWDER 7760 6.1 6.9 88 5.8 8.1 72 OWL CREEK 8975 3.5 3.3 106 4.9 3.6 136 POWDER RIVER PASS 9480 7.3 7.0 104 9.3 8.0 116 SHELL CREEK 9580 10.1 9.6 105 10.4 9.0 116 SYLVAN LAKE 8420 13.4 14.5 92 17.8 14.3 124 SYLVAN ROAD 7120 6.6 8.5 78 14.9 12.9 116 TIMBER CREEK 7950 2.1 3.5 60 5.4 4.4 123 YOUNTS PEAK 8350 10.8 11.6 93 12.3 11.1 111 ----- ----- Basin wide percent of average 92 113 SHOSHONE RIVER BLACKWATER 9780 15.1 16.1 94 14.6 13.8 106 EVENING STAR 9200 18.1 19.2 94 20.8 17.1 122 KIRWIN 9550 8.2 7.5 109 9.5 7.4 128 MARQUETTE 8760 2.2 5.8 38 6.5 6.1 107 SYLVAN LAKE 8420 13.4 14.5 92 17.8 14.3 124 SYLVAN ROAD 7120 6.6 8.5 78 14.9 12.9 116 YOUNTS PEAK 8350 10.8 11.6 93 12.3 11.1 111 ----- ----- Basin wide percent of average 89 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 3.4 162 6.4 5.4 119 BIG GOOSE 7990 5.3 5.8 91 8.3 5.4 154 BONE SPRINGS DIV 9350 9.6 10.3 93 12.3 9.3 132 BURGESS JUNCTION 7880 7.1 7.1 100 9.0 7.7 117 CLOUD PEAK RESERVOIR 9860 8.8 7.8 113 10.1 8.0 126 DOME LAKE 8880 6.5 7.7 84 9.7 8.5 114 GRAVE SPRINGS 8550 5.3 5.5 96 5.9 6.3 94 HANSEN SAWMILL 8360 4.0 4.1 98 6.2 5.2 119 MIDDLE POWDER 7760 6.1 6.9 88 5.8 8.1 72 POWDER RIVER PASS 9480 7.3 7.0 104 9.3 8.0 116 SUCKER CREEK 8880 8.0 6.9 116 10.1 8.5 119 TIE CREEK 6870 4.0 3.9 103 7.8 6.6 118 ----- ----- Basin wide percent of average 101 116 BELLE FOURCHE BLIND PARK 6890 3.9 5.1 76 6.3 7.6 83 COLE CANYON 5910 3.4 4.4 77 4.6 4.6 100 NORTH RAPID CREEK 6130 4.9 4.8 102 5.0 6.2 81 ----- ----- Basin wide percent of average 85 86 UPPER N. PLATTE RIVER COLUMBINE 9160 14.7 15.6 94 17.4 16.1 108 DIVIDE PEAK 8880 14.6 12.6 116 14.9 13.3 112 ELK RIVER 8700 13.5 11.6 116 14.6 12.3 119 JOE WRIGHT 10120 13.6 13.4 101 16.3 15.7 104 NORTH FRENCH CREEK 10130 19.4 17.8 109 19.6 15.9 123 OLD BATTLE 10000 20.1 19.3 104 24.4 21.7 112 SAGE CREEK BASIN 7850 10.7 7.3 147 12.0 7.7 156 SOUTH BRUSH CREEK 8440 7.9 7.1 111 11.6 10.5 110 TOWER 10500 25.0 28.9 87 25.1 24.5 102 WEBBER SPRINGS 9250 15.7 15.4 102 18.6 17.5 106 WILLOW CREEK PASS 9540 10.0 7.3 137 10.1 8.1 125 ----- ----- Basin wide percent of average 106 113 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 12.6 14.8 85 13.4 13.8 97 CASPER MTN. 7900 7.0 8.8 80 9.3 8.7 107 DEADMAN HILL 10220 10.4 10.2 102 10.6 10.3 103 DEER PARK 9700 8.9 11.6 77 12.6 14.1 89 LAPRELE CREEK 8375 -M 7.0 * -M 7.9 * RENO HILL 8400 7.3 8.2 89 9.4 9.1 103 ROACH 9700 12.3 10.5 117 14.7 11.3 130 SAND LAKE 10050 16.9 19.3 88 17.1 15.4 111 SOUTH PASS 9040 7.9 11.0 72 10.5 11.8 89 WINDY PEAK 7900 4.6 4.4 105 6.1 6.8 90 ----- ----- Basin wide percent of average 89 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.7 7.4 131 11.3 9.6 118 DIVIDE PEAK 8880 14.6 12.6 116 14.9 13.3 112 OLD BATTLE 10000 20.1 19.3 104 24.4 21.7 112 SANDSTONE RS 8150 10.5 9.2 114 13.7 12.1 113 WHISKEY PARK 8950 17.7 17.7 100 21.4 18.8 114 ----- ----- Basin wide percent of average 110 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.9 9.2 86 8.4 8.7 97 BLIND BULL SUM 8650 13.6 17.8 76 11.5 14.9 77 EAST RIM DIVIDE 7930 4.4 8.1 54 6.8 7.8 87 ELKHART PARK G.S. 9400 6.5 8.5 76 7.6 8.6 88 GROS VENTRE SUMMIT 8750 8.6 9.2 93 9.8 8.4 117 GUNSIGHT PASS 9820 5.8 -M * 9.6 -M * KENDALL R.S. 7740 6.4 9.5 67 8.4 9.4 89 LOOMIS PARK 8240 8.8 10.8 81 10.4 11.4 91 NEW FORK LAKE 8340 5.2 7.4 70 6.0 7.6 79 SNIDER BASIN 8060 6.2 9.4 66 7.6 10.7 71 SPRING CREEK DIVIDE 9000 12.5 16.7 75 13.2 17.8 74 TRIPLE PEAK 8500 12.6 16.1 78 15.7 15.6 101 ----- ----- Basin wide percent of average 76 87 LOWER GREEN RIVER HAMS FORK 7840 5.6 8.0 70 5.9 8.1 73 HEWINTA 9519 5.4 6.3 86 10.2 9.0 113 HICKERSON PARK 9145 3.1 4.2 74 6.1 5.1 120 HOLE-IN-ROCK 9150 2.6 3.9 67 6.0 4.7 128 INDIAN CREEK 9425 12.2 17.0 72 11.6 16.3 71 KELLEY R.S. 8180 7.6 10.2 75 10.1 13.5 75 STEEL CREEK PARK 10200 7.9 9.0 88 11.5 9.8 117 ----- ----- Basin wide percent of average 76 92 UPPER BEAR RIVER BUG LAKE 7950 8.8 12.6 70 9.7 12.5 78 HAYDEN FORK 9212 9.9 9.3 106 13.3 13.2 101 KELLEY R.S. 8180 7.6 10.2 75 10.1 13.5 75 LILY LAKE 9156 -M 7.8 * -M 11.1 * MONTE CRISTO 8960 15.2 17.3 88 15.8 16.2 98 SALT RIVER SUMMIT 7760 6.5 8.8 74 8.7 12.2 71 TRIAL LAKE 9992 10.9 15.0 73 13.8 15.3 90 ----- ----- Basin wide percent of average 80 86 ----------------------------------------------------------------------------- -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.