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 19 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.9 10.9 91 16.4 13.1 125 COTTONWOOD CREEK 7670 11.4 12.4 92 14.3 16.8 85 GRAND TARGHEE 9260 27.1 -M * 20.5 -M * GRANITE CREEK 6770 8.5 10.4 82 14.2 12.1 117 GRASSY LAKE 7265 16.2 19.6 83 24.2 22.1 110 GROS VENTRE SUMMIT 8750 7.7 8.5 91 9.1 7.7 118 GUNSIGHT PASS 9820 5.0 -M * 8.9 -M * LEWIS LAKE DIVIDE 7850 16.9 19.6 86 22.9 22.0 104 PHILLIPS BENCH 8200 15.4 16.1 96 19.3 17.2 112 SALT RIVER SUMMIT 7760 5.5 7.6 72 7.8 11.2 70 SNAKE RIVER STATION 6920 8.5 10.6 80 16.4 13.8 119 SPRING CREEK DIVIDE 9000 11.2 15.3 73 12.0 16.4 73 THUMB DIVIDE 7980 8.3 10.0 83 11.8 11.4 104 TOGWOTEE PASS 9580 16.1 14.8 109 18.0 15.0 120 TWO OCEAN PLATEAU 9240 21.4 16.7 128 18.9 16.5 115 WILLOW CREEK 8380 15.2 17.8 85 20.7 19.4 107 ----- ----- Basin wide percent of average 90 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 14.9 14.6 102 14.3 12.4 115 BLACK BEAR 8170 25.0 22.5 111 25.7 22.8 113 CANYON 7870 9.2 7.9 116 12.3 9.6 128 FISHER CREEK 9100 24.7 21.2 117 -M 21.8 * MADISON PLATEAU 7750 15.4 14.4 107 19.0 15.4 123 NORTHEAST ENTRANCE 7350 4.1 6.8 60 8.2 7.9 104 PARKER PEAK 9400 14.6 13.3 110 13.6 9.9 137 SYLVAN LAKE 8420 11.5 13.3 86 15.8 13.2 120 THUMB DIVIDE 7980 8.3 10.0 83 11.8 11.4 104 TWO OCEAN PLATEAU 9240 21.4 16.7 128 18.9 16.5 115 WHISKEY CREEK 6800 9.3 9.7 96 15.1 12.3 123 WHITE MILL 8700 15.3 14.4 106 -M 16.0 * WOLVERINE 7650 4.6 7.6 61 8.1 8.3 98 ----- ----- Basin wide percent of average 103 117 WIND RIVER BURROUGHS CREEK 8750 9.3 9.1 102 12.0 10.1 119 COLD SPRINGS 9630 3.0 5.6 54 5.9 6.6 89 DEER PARK 9700 7.8 10.4 75 11.4 13.0 88 HOBBS PARK 10100 6.6 9.1 73 7.7 7.5 103 LITTLE WARM 9370 5.3 7.0 76 8.2 8.2 100 SOUTH PASS 9040 6.5 10.2 64 9.7 10.9 89 ST. LAWRENCE ALT 8620 2.8 4.4 64 4.7 5.2 90 TOGWOTEE PASS 9580 16.1 14.8 109 18.0 15.0 120 TOWNSEND CREEK 8700 3.6 5.2 69 7.0 6.8 103 ----- ----- Basin wide percent of average 80 102 BIGHORN BASIN BALD MTN. 9380 9.2 12.1 76 9.6 10.5 91 BEAR TRAP MEADOW 8200 4.9 3.1 158 5.8 5.1 114 BLACKWATER 9780 14.0 14.8 95 13.3 12.8 104 BONE SPRINGS DIV 9350 8.9 9.6 93 11.5 8.7 132 EVENING STAR 9200 16.1 17.6 91 18.9 15.8 120 GRAVE SPRINGS 8550 4.8 5.1 94 5.9 5.9 100 KIRWIN 9550 7.5 7.1 106 9.1 7.0 130 MARQUETTE 8760 1.8 5.6 32 6.1 5.8 105 MIDDLE POWDER 7760 5.6 6.5 86 5.6 7.7 73 OWL CREEK 8975 3.0 3.1 97 4.6 3.4 135 POWDER RIVER PASS 9480 6.8 6.5 105 8.7 7.4 118 SHELL CREEK 9580 9.4 9.0 104 9.6 8.2 117 SYLVAN LAKE 8420 11.5 13.3 86 15.8 13.2 120 SYLVAN ROAD 7120 5.6 7.9 71 13.7 12.1 113 TIMBER CREEK 7950 1.8 3.4 53 5.5 4.2 131 YOUNTS PEAK 8350 9.5 10.5 90 11.5 10.2 113 ----- ----- Basin wide percent of average 89 112 SHOSHONE RIVER BLACKWATER 9780 14.0 14.8 95 13.3 12.8 104 EVENING STAR 9200 16.1 17.6 91 18.9 15.8 120 KIRWIN 9550 7.5 7.1 106 9.1 7.0 130 MARQUETTE 8760 1.8 5.6 32 6.1 5.8 105 SYLVAN LAKE 8420 11.5 13.3 86 15.8 13.2 120 SYLVAN ROAD 7120 5.6 7.9 71 13.7 12.1 113 YOUNTS PEAK 8350 9.5 10.5 90 11.5 10.2 113 ----- ----- Basin wide percent of average 86 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.9 3.1 158 5.8 5.1 114 BIG GOOSE 7990 4.6 5.4 85 7.5 4.9 153 BONE SPRINGS DIV 9350 8.9 9.6 93 11.5 8.7 132 BURGESS JUNCTION 7880 6.4 6.7 96 8.2 7.2 114 CLOUD PEAK RESERVOIR 9860 8.1 7.2 112 9.0 7.5 120 DOME LAKE 8880 5.6 7.3 77 9.1 7.9 115 GRAVE SPRINGS 8550 4.8 5.1 94 5.9 5.9 100 HANSEN SAWMILL 8360 3.5 3.8 92 5.6 4.9 114 MIDDLE POWDER 7760 5.6 6.5 86 5.6 7.7 73 POWDER RIVER PASS 9480 6.8 6.5 105 8.7 7.4 118 SUCKER CREEK 8880 7.1 6.5 109 8.7 7.9 110 TIE CREEK 6870 3.1 3.7 84 7.1 6.1 116 ----- ----- Basin wide percent of average 97 114 BELLE FOURCHE BLIND PARK 6890 3.0 4.6 65 5.7 7.2 79 COLE CANYON 5910 2.4 3.9 62 4.0 4.4 91 NORTH RAPID CREEK 6130 -M 4.2 * 4.0 5.9 68 ----- ----- Basin wide percent of average 64 78 UPPER N. PLATTE RIVER COLUMBINE 9160 12.5 13.7 91 15.1 14.7 103 DIVIDE PEAK 8880 13.3 11.6 115 13.7 12.3 111 ELK RIVER 8700 11.8 10.2 116 13.1 11.2 117 JOE WRIGHT 10120 12.7 12.1 105 15.2 14.5 105 NORTH FRENCH CREEK 10130 17.6 16.4 107 18.1 14.7 123 OLD BATTLE 10000 17.4 17.7 98 21.0 19.9 106 SAGE CREEK BASIN 7850 9.6 6.7 143 10.9 7.1 154 SOUTH BRUSH CREEK 8440 7.5 6.4 117 10.7 9.6 111 TOWER 10500 21.4 26.1 82 22.0 22.5 98 WEBBER SPRINGS 9250 13.1 14.1 93 16.2 16.2 100 WILLOW CREEK PASS 9540 8.7 6.7 130 9.7 7.5 129 ----- ----- Basin wide percent of average 103 110 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.2 13.5 83 12.3 12.7 97 CASPER MTN. 7900 5.9 8.1 73 8.3 8.2 101 DEADMAN HILL 10220 9.4 9.4 100 9.7 9.5 102 DEER PARK 9700 7.8 10.4 75 11.4 13.0 88 LAPRELE CREEK 8375 3.0 6.5 46 5.8 7.4 78 RENO HILL 8400 6.3 7.7 82 8.1 8.5 95 ROACH 9700 11.0 9.4 117 13.0 10.4 125 SAND LAKE 10050 15.0 17.9 84 15.3 14.3 107 SOUTH PASS 9040 6.5 10.2 64 9.7 10.9 89 WINDY PEAK 7900 3.6 4.0 90 5.3 6.4 83 ----- ----- Basin wide percent of average 82 98 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.4 6.4 131 10.4 8.8 118 DIVIDE PEAK 8880 13.3 11.6 115 13.7 12.3 111 OLD BATTLE 10000 17.4 17.7 98 21.0 19.9 106 SANDSTONE RS 8150 8.9 7.9 113 12.4 11.2 111 WHISKEY PARK 8950 15.7 15.4 102 19.3 17.2 112 ----- ----- Basin wide percent of average 108 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.8 8.4 81 7.3 8.0 91 BLIND BULL SUM 8650 12.5 16.3 77 10.6 13.8 77 EAST RIM DIVIDE 7930 3.7 7.4 50 6.3 7.2 88 ELKHART PARK G.S. 9400 5.6 7.8 72 6.7 8.1 83 GROS VENTRE SUMMIT 8750 7.7 8.5 91 9.1 7.7 118 GUNSIGHT PASS 9820 5.0 -M * 8.9 -M * KENDALL R.S. 7740 5.2 8.6 60 7.4 8.6 86 LOOMIS PARK 8240 7.7 9.9 78 9.3 10.5 89 NEW FORK LAKE 8340 4.5 6.7 67 5.2 7.1 73 SNIDER BASIN 8060 5.5 8.6 64 7.0 9.9 71 SPRING CREEK DIVIDE 9000 11.2 15.3 73 12.0 16.4 73 TRIPLE PEAK 8500 11.5 14.7 78 14.6 14.3 102 ----- ----- Basin wide percent of average 73 86 LOWER GREEN RIVER HAMS FORK 7840 4.9 7.2 68 5.4 7.4 73 HEWINTA 9519 5.1 5.6 91 10.0 8.3 120 HICKERSON PARK 9145 2.9 3.8 76 5.5 4.8 115 HOLE-IN-ROCK 9150 2.3 3.5 66 5.8 4.4 132 INDIAN CREEK 9425 10.8 15.5 70 10.6 15.1 70 KELLEY R.S. 8180 6.8 9.3 73 9.3 12.5 74 STEEL CREEK PARK 10200 7.1 8.2 87 11.1 9.0 123 ----- ----- Basin wide percent of average 75 94 UPPER BEAR RIVER BUG LAKE 7950 7.9 11.2 71 8.9 11.5 77 HAYDEN FORK 9212 9.1 8.3 110 12.6 12.2 103 KELLEY R.S. 8180 6.8 9.3 73 9.3 12.5 74 LILY LAKE 9156 6.9 7.0 99 9.9 10.3 96 MONTE CRISTO 8960 13.9 15.1 92 14.8 14.9 99 SALT RIVER SUMMIT 7760 5.5 7.6 72 7.8 11.2 70 TRIAL LAKE 9992 -M 13.5 * -M 14.0 * ----- ----- Basin wide percent of average 86 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.