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 7 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 8.4 9.1 92 14.8 11.3 131 COTTONWOOD CREEK 7670 9.1 10.6 86 12.2 14.7 83 GRAND TARGHEE 9260 23.6 -M * 17.5 -M * GRANITE CREEK 6770 6.8 8.5 80 12.6 10.4 121 GRASSY LAKE 7265 13.2 16.3 81 21.1 19.0 111 GROS VENTRE SUMMIT 8750 7.3 7.5 97 8.5 6.8 125 GUNSIGHT PASS 9820 4.8 -M * 8.5 -M * LEWIS LAKE DIVIDE 7850 14.9 16.3 91 21.0 19.1 110 PHILLIPS BENCH 8200 12.7 13.8 92 16.8 14.8 114 SALT RIVER SUMMIT 7760 4.2 6.1 69 6.6 9.8 67 SNAKE RIVER STATION 6920 7.0 8.7 80 14.9 12.0 124 SPRING CREEK DIVIDE 9000 9.2 13.5 68 10.1 14.3 71 THUMB DIVIDE 7980 7.5 8.4 89 11.2 9.9 113 TOGWOTEE PASS 9580 14.2 12.7 112 16.0 13.0 123 TWO OCEAN PLATEAU 9240 19.6 14.5 135 17.6 14.5 121 WILLOW CREEK 8380 11.8 15.5 76 17.6 16.9 104 ----- ----- Basin wide percent of average 90 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 13.7 12.4 110 13.1 10.8 121 BLACK BEAR 8170 22.2 18.8 118 23.5 19.3 122 CANYON 7870 8.0 6.8 118 11.3 8.4 135 FISHER CREEK 9100 22.6 17.7 128 20.0 18.7 107 MADISON PLATEAU 7750 13.7 12.3 111 17.7 13.4 132 NORTHEAST ENTRANCE 7350 3.3 5.5 60 7.5 6.9 109 PARKER PEAK 9400 13.4 11.4 118 13.3 8.8 151 SYLVAN LAKE 8420 10.2 11.4 89 14.6 11.7 125 THUMB DIVIDE 7980 7.5 8.4 89 11.2 9.9 113 TWO OCEAN PLATEAU 9240 19.6 14.5 135 17.6 14.5 121 WHISKEY CREEK 6800 8.4 8.2 102 14.2 10.7 133 WHITE MILL 8700 13.9 12.1 115 14.6 13.9 105 WOLVERINE 7650 4.1 6.3 65 7.8 7.4 105 ----- ----- Basin wide percent of average 110 121 WIND RIVER BURROUGHS CREEK 8750 8.7 7.4 118 11.4 8.7 131 COLD SPRINGS 9630 2.8 4.8 58 5.7 6.0 95 DEER PARK 9700 7.4 7.2 103 10.9 11.6 94 HOBBS PARK 10100 6.2 8.0 78 7.4 6.8 109 LITTLE WARM 9370 4.9 5.8 84 7.6 7.2 106 SOUTH PASS 9040 6.3 8.7 72 9.1 9.7 94 ST. LAWRENCE ALT 8620 2.8 3.9 72 4.6 4.8 96 TOGWOTEE PASS 9580 14.2 12.7 112 16.0 13.0 123 TOWNSEND CREEK 8700 3.4 4.6 74 6.4 6.3 102 ----- ----- Basin wide percent of average 90 107 BIGHORN BASIN BALD MTN. 9380 7.3 10.5 70 8.0 9.2 87 BEAR TRAP MEADOW 8200 4.5 2.7 167 5.6 4.7 119 BLACKWATER 9780 13.1 12.9 102 12.5 11.5 109 BONE SPRINGS DIV 9350 7.5 8.4 89 -M 7.8 * EVENING STAR 9200 14.8 14.8 100 17.6 14.0 126 GRAVE SPRINGS 8550 3.9 4.4 89 5.4 5.2 104 KIRWIN 9550 7.3 6.2 118 8.8 6.2 142 MARQUETTE 8760 1.6 5.1 31 5.7 5.5 104 MIDDLE POWDER 7760 4.7 5.8 81 5.1 7.1 72 OWL CREEK 8975 2.7 2.8 96 4.4 3.0 147 POWDER RIVER PASS 9480 5.6 5.6 100 7.6 6.4 119 SHELL CREEK 9580 8.1 7.8 104 8.6 7.2 119 SYLVAN LAKE 8420 10.2 11.4 89 14.6 11.7 125 SYLVAN ROAD 7120 4.8 6.7 72 12.8 10.7 120 TIMBER CREEK 7950 1.7 3.1 55 5.4 3.8 142 YOUNTS PEAK 8350 8.6 8.7 99 10.9 8.9 122 ----- ----- Basin wide percent of average 91 116 SHOSHONE RIVER BLACKWATER 9780 13.1 12.9 102 12.5 11.5 109 EVENING STAR 9200 14.8 14.8 100 17.6 14.0 126 KIRWIN 9550 7.3 6.2 118 8.8 6.2 142 MARQUETTE 8760 1.6 5.1 31 5.7 5.5 104 SYLVAN LAKE 8420 10.2 11.4 89 14.6 11.7 125 SYLVAN ROAD 7120 4.8 6.7 72 12.8 10.7 120 YOUNTS PEAK 8350 8.6 8.7 99 10.9 8.9 122 ----- ----- Basin wide percent of average 92 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.5 2.7 167 5.6 4.7 119 BIG GOOSE 7990 4.1 4.7 87 7.0 4.7 149 BONE SPRINGS DIV 9350 7.5 8.4 89 -M 7.8 * BURGESS JUNCTION 7880 4.8 5.9 81 6.9 6.4 108 CLOUD PEAK RESERVOIR 9860 6.6 6.1 108 7.9 6.7 118 DOME LAKE 8880 5.0 6.4 78 8.3 7.2 115 GRAVE SPRINGS 8550 3.9 4.4 89 5.4 5.2 104 HANSEN SAWMILL 8360 3.2 3.4 94 5.4 4.5 120 MIDDLE POWDER 7760 4.7 5.8 81 5.1 7.1 72 POWDER RIVER PASS 9480 5.6 5.6 100 7.6 6.4 119 SUCKER CREEK 8880 5.4 5.6 96 7.3 7.1 103 TIE CREEK 6870 2.1 2.8 75 6.0 5.4 111 ----- ----- Basin wide percent of average 93 111 BELLE FOURCHE BLIND PARK 6890 2.1 4.0 52 4.4 6.5 68 COLE CANYON 5910 1.6 3.5 46 3.2 4.1 78 NORTH RAPID CREEK 6130 -M 3.6 * 3.4 5.5 62 ----- ----- Basin wide percent of average 49 68 UPPER N. PLATTE RIVER COLUMBINE 9160 9.6 11.2 86 12.8 12.6 102 DIVIDE PEAK 8880 11.2 10.0 112 11.8 10.8 109 ELK RIVER 8700 9.6 8.2 117 11.5 9.7 119 JOE WRIGHT 10120 11.0 10.5 105 13.5 12.8 105 NORTH FRENCH CREEK 10130 13.8 14.4 96 14.6 12.9 113 OLD BATTLE 10000 14.8 15.6 95 18.2 17.3 105 SAGE CREEK BASIN 7850 8.3 5.8 143 9.6 6.3 152 SOUTH BRUSH CREEK 8440 6.4 5.6 114 9.7 8.4 115 TOWER 10500 16.5 22.4 74 19.4 19.4 100 WEBBER SPRINGS 9250 11.5 12.3 93 14.4 14.1 102 WILLOW CREEK PASS 9540 8.7 5.9 147 8.9 6.8 131 ----- ----- Basin wide percent of average 100 110 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.9 11.7 85 10.9 11.0 99 CASPER MTN. 7900 5.2 7.3 71 7.8 7.5 104 DEADMAN HILL 10220 8.8 8.2 107 8.9 8.4 106 DEER PARK 9700 7.4 7.2 103 10.9 11.6 94 LAPRELE CREEK 8375 2.4 5.7 42 5.2 6.6 79 RENO HILL 8400 5.6 7.0 80 7.5 7.6 99 ROACH 9700 9.9 8.0 124 12.1 9.2 132 SAND LAKE 10050 13.0 15.9 82 13.5 12.5 108 SOUTH PASS 9040 6.3 8.7 72 9.1 9.7 94 WINDY PEAK 7900 3.2 3.6 89 4.9 5.9 83 ----- ----- Basin wide percent of average 86 101 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.4 4.8 133 9.0 7.7 117 DIVIDE PEAK 8880 11.2 10.0 112 11.8 10.8 109 OLD BATTLE 10000 14.8 15.6 95 18.2 17.3 105 SANDSTONE RS 8150 6.7 6.1 110 10.5 9.7 108 WHISKEY PARK 8950 12.2 12.4 98 16.2 14.5 112 ----- ----- Basin wide percent of average 105 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.5 7.4 88 7.1 7.0 101 BLIND BULL SUM 8650 10.2 14.3 71 9.2 12.0 77 EAST RIM DIVIDE 7930 3.0 6.4 47 5.5 6.3 87 ELKHART PARK G.S. 9400 4.8 6.8 71 6.2 7.2 86 GROS VENTRE SUMMIT 8750 7.3 7.5 97 8.5 6.8 125 GUNSIGHT PASS 9820 4.8 -M * 8.5 -M * KENDALL R.S. 7740 4.6 7.3 63 6.7 7.5 89 LOOMIS PARK 8240 6.6 8.7 76 8.2 9.1 90 NEW FORK LAKE 8340 3.8 5.8 66 4.7 6.4 73 SNIDER BASIN 8060 4.5 7.4 61 6.0 8.7 69 SPRING CREEK DIVIDE 9000 9.2 13.5 68 10.1 14.3 71 TRIPLE PEAK 8500 9.4 12.8 73 12.6 12.3 102 ----- ----- Basin wide percent of average 71 87 LOWER GREEN RIVER HAMS FORK 7840 3.9 6.0 65 4.6 6.4 72 HEWINTA 9519 4.0 4.6 87 8.7 7.4 118 HICKERSON PARK 9145 2.3 3.2 72 4.9 4.4 111 HOLE-IN-ROCK 9150 2.0 2.9 69 5.4 4.0 135 INDIAN CREEK 9425 9.3 13.5 69 9.1 13.2 69 KELLEY R.S. 8180 5.9 8.2 72 8.4 11.0 76 STEEL CREEK PARK 10200 5.4 7.2 75 9.6 8.0 120 ----- ----- Basin wide percent of average 72 93 UPPER BEAR RIVER BUG LAKE 7950 6.6 9.2 72 7.8 9.9 79 HAYDEN FORK 9212 7.4 7.0 106 10.7 10.7 100 KELLEY R.S. 8180 5.9 8.2 72 8.4 11.0 76 LILY LAKE 9156 5.4 6.0 90 8.6 9.2 93 MONTE CRISTO 8960 11.6 12.4 94 12.7 13.0 98 SALT RIVER SUMMIT 7760 4.2 6.1 69 6.6 9.8 67 TRIAL LAKE 9992 8.1 11.5 70 10.7 12.2 88 ----- ----- Basin wide percent of average 81 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.