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 17 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.7 10.6 92 16.1 12.8 126 COTTONWOOD CREEK 7670 11.2 12.1 93 14.1 16.5 85 GRAND TARGHEE 9260 26.7 -M * 20.0 -M * GRANITE CREEK 6770 8.4 10.1 83 14.1 11.8 119 GRASSY LAKE 7265 15.9 19.0 84 24.1 21.7 111 GROS VENTRE SUMMIT 8750 7.7 8.3 93 9.1 7.6 120 GUNSIGHT PASS 9820 4.9 -M * 8.8 -M * LEWIS LAKE DIVIDE 7850 16.7 19.0 88 22.5 21.6 104 PHILLIPS BENCH 8200 15.2 15.7 97 19.0 16.8 113 SALT RIVER SUMMIT 7760 5.2 7.3 71 7.5 11.0 68 SNAKE RIVER STATION 6920 8.3 10.2 81 16.3 13.5 121 SPRING CREEK DIVIDE 9000 11.0 15.0 73 11.7 16.1 73 THUMB DIVIDE 7980 8.1 9.7 84 11.6 11.1 105 TOGWOTEE PASS 9580 15.8 14.4 110 17.6 14.7 120 TWO OCEAN PLATEAU 9240 21.1 16.3 129 18.7 16.2 115 WILLOW CREEK 8380 15.1 17.4 87 20.6 19.0 108 ----- ----- Basin wide percent of average 92 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 14.6 14.3 102 13.9 12.1 115 BLACK BEAR 8170 24.8 22.0 113 25.5 22.2 115 CANYON 7870 9.1 7.8 117 12.1 9.4 129 FISHER CREEK 9100 24.2 20.8 116 22.2 21.3 104 MADISON PLATEAU 7750 15.2 14.2 107 19.0 15.0 127 NORTHEAST ENTRANCE 7350 3.9 6.6 59 8.0 7.7 104 PARKER PEAK 9400 14.4 13.0 111 14.1 9.7 145 SYLVAN LAKE 8420 11.2 13.1 85 15.8 13.0 122 THUMB DIVIDE 7980 8.1 9.7 84 11.6 11.1 105 TWO OCEAN PLATEAU 9240 21.1 16.3 129 18.7 16.2 115 WHISKEY CREEK 6800 9.2 9.5 97 15.3 12.0 128 WHITE MILL 8700 14.9 14.1 106 15.9 15.7 101 WOLVERINE 7650 4.5 7.4 61 8.2 8.2 100 ----- ----- Basin wide percent of average 104 115 WIND RIVER BURROUGHS CREEK 8750 9.3 8.9 104 12.0 9.8 122 COLD SPRINGS 9630 3.2 5.5 58 6.0 6.5 92 DEER PARK 9700 7.7 9.6 80 11.3 12.8 88 HOBBS PARK 10100 6.5 9.0 72 7.6 7.4 103 LITTLE WARM 9370 5.3 6.8 78 8.1 8.1 100 SOUTH PASS 9040 6.6 9.9 67 9.6 10.7 90 ST. LAWRENCE ALT 8620 3.0 4.3 70 4.9 5.1 96 TOGWOTEE PASS 9580 15.8 14.4 110 17.6 14.7 120 TOWNSEND CREEK 8700 3.8 5.1 75 7.0 6.7 104 ----- ----- Basin wide percent of average 83 103 BIGHORN BASIN BALD MTN. 9380 8.3 11.9 70 9.4 10.3 91 BEAR TRAP MEADOW 8200 4.8 3.0 160 5.8 5.0 116 BLACKWATER 9780 13.8 14.6 95 13.3 12.6 106 BONE SPRINGS DIV 9350 8.0 9.4 85 11.1 8.5 131 EVENING STAR 9200 16.2 17.3 94 19.1 15.5 123 GRAVE SPRINGS 8550 4.3 5.0 86 5.9 5.8 102 KIRWIN 9550 7.6 7.0 109 9.1 6.9 132 MARQUETTE 8760 1.9 5.5 35 6.1 5.8 105 MIDDLE POWDER 7760 5.1 6.4 80 5.4 7.6 71 OWL CREEK 8975 3.1 3.1 100 4.6 3.3 139 POWDER RIVER PASS 9480 6.5 6.4 102 8.4 7.2 117 SHELL CREEK 9580 8.8 8.8 100 9.1 8.0 114 SYLVAN LAKE 8420 11.2 13.1 85 15.8 13.0 122 SYLVAN ROAD 7120 5.6 7.7 73 13.7 11.9 115 TIMBER CREEK 7950 1.8 3.4 53 5.8 4.1 141 YOUNTS PEAK 8350 9.4 10.2 92 11.6 10.0 116 ----- ----- Basin wide percent of average 88 114 SHOSHONE RIVER BLACKWATER 9780 13.8 14.6 95 13.3 12.6 106 EVENING STAR 9200 16.2 17.3 94 19.1 15.5 123 KIRWIN 9550 7.6 7.0 109 9.1 6.9 132 MARQUETTE 8760 1.9 5.5 35 6.1 5.8 105 SYLVAN LAKE 8420 11.2 13.1 85 15.8 13.0 122 SYLVAN ROAD 7120 5.6 7.7 73 13.7 11.9 115 YOUNTS PEAK 8350 9.4 10.2 92 11.6 10.0 116 ----- ----- Basin wide percent of average 87 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.8 3.0 160 5.8 5.0 116 BIG GOOSE 7990 4.6 5.3 87 7.6 4.9 155 BONE SPRINGS DIV 9350 8.0 9.4 85 11.1 8.5 131 BURGESS JUNCTION 7880 5.3 6.6 80 7.4 7.0 106 CLOUD PEAK RESERVOIR 9860 7.3 7.1 103 8.8 7.4 119 DOME LAKE 8880 5.3 7.1 75 8.7 7.8 112 GRAVE SPRINGS 8550 4.3 5.0 86 5.9 5.8 102 HANSEN SAWMILL 8360 3.7 3.8 97 5.9 4.8 123 MIDDLE POWDER 7760 5.1 6.4 80 5.4 7.6 71 POWDER RIVER PASS 9480 6.5 6.4 102 8.4 7.2 117 SUCKER CREEK 8880 6.0 6.4 94 8.0 7.8 103 TIE CREEK 6870 2.4 3.6 67 6.4 6.0 107 ----- ----- Basin wide percent of average 90 112 BELLE FOURCHE BLIND PARK 6890 2.5 4.6 54 5.0 7.1 70 COLE CANYON 5910 2.1 3.9 54 3.6 4.3 84 NORTH RAPID CREEK 6130 3.4 4.1 83 3.9 5.8 67 ----- ----- Basin wide percent of average 63 73 UPPER N. PLATTE RIVER COLUMBINE 9160 12.3 13.2 93 14.8 14.3 103 DIVIDE PEAK 8880 13.0 11.3 115 13.3 12.0 111 ELK RIVER 8700 11.4 9.8 116 12.9 11.0 117 JOE WRIGHT 10120 12.4 11.8 105 15.2 14.2 107 NORTH FRENCH CREEK 10130 17.3 16.1 107 17.7 14.4 123 OLD BATTLE 10000 17.0 17.3 98 20.4 19.5 105 SAGE CREEK BASIN 7850 9.2 6.6 139 10.6 7.0 151 SOUTH BRUSH CREEK 8440 7.3 6.3 116 10.4 9.4 111 TOWER 10500 21.1 25.5 83 21.8 22.0 99 WEBBER SPRINGS 9250 12.8 13.8 93 15.8 15.9 99 WILLOW CREEK PASS 9540 8.5 6.5 131 9.5 7.4 128 ----- ----- Basin wide percent of average 103 110 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.0 13.2 83 12.2 12.5 98 CASPER MTN. 7900 5.5 8.0 69 7.9 8.1 98 DEADMAN HILL 10220 9.2 9.2 100 9.4 9.3 101 DEER PARK 9700 7.7 9.6 80 11.3 12.8 88 LAPRELE CREEK 8375 2.5 6.4 39 5.3 7.3 73 RENO HILL 8400 6.1 7.6 80 7.8 8.4 93 ROACH 9700 10.9 9.2 118 12.9 10.2 126 SAND LAKE 10050 14.7 17.6 84 14.9 14.1 106 SOUTH PASS 9040 6.6 9.9 67 9.6 10.7 90 WINDY PEAK 7900 3.4 3.9 87 5.2 6.3 83 ----- ----- Basin wide percent of average 82 97 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.9 6.1 130 9.9 8.7 114 DIVIDE PEAK 8880 13.0 11.3 115 13.3 12.0 111 OLD BATTLE 10000 17.0 17.3 98 20.4 19.5 105 SANDSTONE RS 8150 8.4 7.6 111 11.9 10.9 109 WHISKEY PARK 8950 15.2 14.9 102 19.1 16.8 114 ----- ----- Basin wide percent of average 108 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.7 8.3 81 7.3 7.9 92 BLIND BULL SUM 8650 12.3 16.0 77 10.5 13.5 78 EAST RIM DIVIDE 7930 3.5 7.2 49 6.1 7.0 87 ELKHART PARK G.S. 9400 5.5 7.6 72 6.7 7.9 85 GROS VENTRE SUMMIT 8750 7.7 8.3 93 9.1 7.6 120 GUNSIGHT PASS 9820 4.9 -M * 8.8 -M * KENDALL R.S. 7740 5.1 8.4 61 7.4 8.5 87 LOOMIS PARK 8240 7.5 9.7 77 9.1 10.2 89 NEW FORK LAKE 8340 4.4 6.6 67 5.2 7.0 74 SNIDER BASIN 8060 5.4 8.4 64 6.9 9.7 71 SPRING CREEK DIVIDE 9000 11.0 15.0 73 11.7 16.1 73 TRIPLE PEAK 8500 11.4 14.4 79 14.4 14.0 103 ----- ----- Basin wide percent of average 73 86 LOWER GREEN RIVER HAMS FORK 7840 4.7 7.0 67 5.3 7.3 73 HEWINTA 9519 4.8 5.4 89 9.7 8.2 118 HICKERSON PARK 9145 2.6 3.7 70 5.1 4.7 109 HOLE-IN-ROCK 9150 2.1 3.4 62 5.6 4.3 130 INDIAN CREEK 9425 10.5 15.2 69 10.3 14.8 70 KELLEY R.S. 8180 6.5 9.2 71 9.1 12.3 74 STEEL CREEK PARK 10200 6.6 8.0 82 10.8 8.9 121 ----- ----- Basin wide percent of average 73 92 UPPER BEAR RIVER BUG LAKE 7950 7.7 10.9 71 8.7 11.2 78 HAYDEN FORK 9212 8.9 8.1 110 12.3 11.9 103 KELLEY R.S. 8180 6.5 9.2 71 9.1 12.3 74 LILY LAKE 9156 6.6 6.8 97 9.7 10.1 96 MONTE CRISTO 8960 13.7 14.7 93 14.4 14.6 99 SALT RIVER SUMMIT 7760 5.2 7.3 71 7.5 11.0 68 TRIAL LAKE 9992 -M 13.1 * -M 13.7 * ----- ----- Basin wide percent of average 85 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.