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 WEDNESDAY: JANUARY 28 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.7 12.2 88 13.6 14.4 94 COTTONWOOD CREEK 7670 17.3 13.7 126 20.7 18.2 114 GRAND TARGHEE 9260 26.2 -M * 23.0 -M * GRANITE CREEK 6770 11.2 11.8 95 15.7 13.3 118 GRASSY LAKE 7265 19.8 22.0 90 22.9 24.2 95 GROS VENTRE SUMMIT 8750 8.6 9.2 93 10.0 8.4 119 GUNSIGHT PASS 9820 9.4 -M * 10.5 -M * LEWIS LAKE DIVIDE 7850 17.0 22.1 77 21.1 24.0 88 PHILLIPS BENCH 8200 17.5 17.8 98 19.5 18.9 103 SALT RIVER SUMMIT 7760 8.3 8.8 94 9.8 12.2 80 SNAKE RIVER STATION 6920 10.8 12.0 90 14.9 15.0 99 SPRING CREEK DIVIDE 9000 17.1 16.7 102 17.6 17.8 99 THUMB DIVIDE 7980 10.9 11.2 97 12.7 12.3 103 TOGWOTEE PASS 9580 18.9 16.3 116 20.7 16.3 127 TWO OCEAN PLATEAU 9240 24.1 18.3 132 18.4 17.9 103 WILLOW CREEK 8380 21.7 19.5 111 25.9 21.1 123 ----- ----- Basin wide percent of average 101 104 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 15.0 15.8 95 13.7 13.5 101 BLACK BEAR 8170 20.6 24.8 83 22.0 25.1 88 CANYON 7870 8.4 8.6 98 9.3 10.5 89 FISHER CREEK 9100 23.6 23.0 103 21.7 23.8 91 MADISON PLATEAU 7750 12.0 15.7 76 14.0 16.9 83 NORTHEAST ENTRANCE 7350 7.0 7.4 95 9.2 8.6 107 PARKER PEAK 9400 16.7 14.3 117 12.1 10.7 113 SYLVAN LAKE 8420 12.4 14.5 86 14.8 14.3 103 THUMB DIVIDE 7980 10.9 11.2 97 12.7 12.3 103 TWO OCEAN PLATEAU 9240 24.1 18.3 132 18.4 17.9 103 WHISKEY CREEK 6800 8.6 10.8 80 11.6 13.4 87 WHITE MILL 8700 15.6 15.6 100 15.2 17.6 86 WOLVERINE 7650 8.1 8.4 96 8.0 8.9 90 ----- ----- Basin wide percent of average 97 94 WIND RIVER BURROUGHS CREEK 8750 11.8 9.8 120 12.1 10.9 111 COLD SPRINGS 9630 4.9 5.9 83 6.6 6.9 96 DEER PARK 9700 6.4 11.6 55 10.1 14.1 72 HOBBS PARK 10100 6.9 9.6 72 7.2 8.0 90 LITTLE WARM 9370 7.4 7.6 97 9.3 8.9 104 SOUTH PASS 9040 7.1 11.0 65 9.1 11.8 77 ST. LAWRENCE ALT 8620 1.9 4.7 40 4.8 5.5 87 TOGWOTEE PASS 9580 18.9 16.3 116 20.7 16.3 127 TOWNSEND CREEK 8700 4.2 5.5 76 6.4 7.1 90 ----- ----- Basin wide percent of average 85 96 BIGHORN BASIN BALD MTN. 9380 13.5 13.0 104 11.2 11.4 98 BEAR TRAP MEADOW 8200 5.9 3.4 174 6.6 5.4 122 BLACKWATER 9780 16.0 16.1 99 14.6 13.8 106 BONE SPRINGS DIV 9350 13.5 10.3 131 10.5 9.3 113 EVENING STAR 9200 19.8 19.2 103 20.4 17.1 119 GRAVE SPRINGS 8550 5.0 5.5 91 6.4 6.3 102 KIRWIN 9550 8.6 7.5 115 9.8 7.4 132 MARQUETTE 8760 2.9 5.8 50 5.6 6.1 92 MIDDLE POWDER 7760 6.2 6.9 90 6.5 8.1 80 OWL CREEK 8975 3.8 3.3 115 3.7 3.6 103 POWDER RIVER PASS 9480 9.1 7.0 130 10.2 8.0 127 SHELL CREEK 9580 12.2 9.6 127 11.9 9.0 132 SYLVAN LAKE 8420 12.4 14.5 86 14.8 14.3 103 SYLVAN ROAD 7120 10.1 8.5 119 13.1 12.9 102 TIMBER CREEK 7950 2.9 3.5 83 6.0 4.4 136 YOUNTS PEAK 8350 13.5 11.6 116 11.7 11.1 105 ----- ----- Basin wide percent of average 107 110 SHOSHONE RIVER BLACKWATER 9780 16.0 16.1 99 14.6 13.8 106 EVENING STAR 9200 19.8 19.2 103 20.4 17.1 119 KIRWIN 9550 8.6 7.5 115 9.8 7.4 132 MARQUETTE 8760 2.9 5.8 50 5.6 6.1 92 SYLVAN LAKE 8420 12.4 14.5 86 14.8 14.3 103 SYLVAN ROAD 7120 10.1 8.5 119 13.1 12.9 102 YOUNTS PEAK 8350 13.5 11.6 116 11.7 11.1 105 ----- ----- Basin wide percent of average 100 109 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.9 3.4 174 6.6 5.4 122 BIG GOOSE 7990 5.6 5.8 97 7.8 5.4 144 BONE SPRINGS DIV 9350 13.5 10.3 131 10.5 9.3 113 BURGESS JUNCTION 7880 8.3 7.1 117 9.1 7.7 118 CLOUD PEAK RESERVOIR 9860 11.6 7.8 149 11.3 8.0 141 DOME LAKE 8880 8.3 7.7 108 10.4 8.5 122 GRAVE SPRINGS 8550 5.0 5.5 91 6.4 6.3 102 HANSEN SAWMILL 8360 4.3 4.1 105 7.1 5.2 137 MIDDLE POWDER 7760 6.2 6.9 90 6.5 8.1 80 POWDER RIVER PASS 9480 9.1 7.0 130 10.2 8.0 127 SUCKER CREEK 8880 10.0 6.9 145 11.8 8.5 139 TIE CREEK 6870 3.3 3.9 85 9.6 6.6 145 ----- ----- Basin wide percent of average 119 123 BELLE FOURCHE BLIND PARK 6890 6.9 5.1 135 11.1 7.6 146 COLE CANYON 5910 4.3 4.4 98 9.1 4.6 198 NORTH RAPID CREEK 6130 6.6 4.8 138 9.6 6.2 155 ----- ----- Basin wide percent of average 124 162 UPPER N. PLATTE RIVER COLUMBINE 9160 16.9 15.6 108 16.1 16.1 100 DIVIDE PEAK 8880 13.5 12.6 107 15.5 13.3 117 ELK RIVER 8700 15.4 11.6 133 14.6 12.3 119 JOE WRIGHT 10120 15.7 13.4 117 19.0 15.7 121 NORTH FRENCH CREEK 10130 20.3 17.8 114 19.7 15.9 124 OLD BATTLE 10000 19.7 19.3 102 23.6 21.7 109 SAGE CREEK BASIN 7850 7.2 7.3 99 8.6 7.7 112 SOUTH BRUSH CREEK 8440 9.3 7.1 131 10.6 10.5 101 TOWER 10500 26.5 28.9 92 26.9 24.5 110 WEBBER SPRINGS 9250 15.1 15.4 98 18.0 17.5 103 WILLOW CREEK PASS 9540 7.9 7.3 108 8.1 8.1 100 ----- ----- Basin wide percent of average 107 111 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.6 14.8 92 12.9 13.8 93 CASPER MTN. 7900 5.7 8.8 65 8.3 8.7 95 DEADMAN HILL 10220 10.6 10.2 104 11.3 10.3 110 DEER PARK 9700 6.4 11.6 55 10.1 14.1 72 LAPRELE CREEK 8375 5.0 7.0 71 6.0 7.9 76 RENO HILL 8400 7.0 8.2 85 8.0 9.1 88 ROACH 9700 10.9 10.5 104 12.2 11.3 108 SAND LAKE 10050 17.0 19.3 88 15.5 15.4 101 SOUTH PASS 9040 7.1 11.0 65 9.1 11.8 77 WINDY PEAK 7900 5.0 4.4 114 5.7 6.8 84 ----- ----- Basin wide percent of average 83 91 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.1 7.4 123 11.3 9.6 118 DIVIDE PEAK 8880 13.5 12.6 107 15.5 13.3 117 OLD BATTLE 10000 19.7 19.3 102 23.6 21.7 109 SANDSTONE RS 8150 9.8 9.2 107 12.6 12.1 104 WHISKEY PARK 8950 19.1 17.7 108 20.5 18.8 109 ----- ----- Basin wide percent of average 108 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.8 9.2 85 7.9 8.7 91 BLIND BULL SUM 8650 16.6 17.8 93 14.0 14.9 94 EAST RIM DIVIDE 7930 6.3 8.1 78 9.0 7.8 115 ELKHART PARK G.S. 9400 8.9 8.5 105 10.1 8.6 117 GROS VENTRE SUMMIT 8750 8.6 9.2 93 10.0 8.4 119 GUNSIGHT PASS 9820 9.4 -M * 10.5 -M * KENDALL R.S. 7740 7.8 9.5 82 10.2 9.4 109 LOOMIS PARK 8240 11.5 10.8 106 13.9 11.4 122 NEW FORK LAKE 8340 8.5 7.4 115 8.1 7.6 107 SNIDER BASIN 8060 9.3 9.4 99 10.0 10.7 93 SPRING CREEK DIVIDE 9000 17.1 16.7 102 17.6 17.8 99 TRIPLE PEAK 8500 16.5 16.1 102 18.2 15.6 117 ----- ----- Basin wide percent of average 97 107 LOWER GREEN RIVER HAMS FORK 7840 6.3 8.0 79 7.2 8.1 89 HEWINTA 9519 4.9 6.3 78 7.8 9.0 87 HICKERSON PARK 9145 1.8 4.2 43 4.4 5.1 86 HOLE-IN-ROCK 9150 2.2 3.9 56 4.3 4.7 91 INDIAN CREEK 9425 13.9 17.0 82 13.4 16.3 82 KELLEY R.S. 8180 9.1 10.2 89 10.5 13.5 78 STEEL CREEK PARK 10200 6.2 9.0 69 9.5 9.8 97 ----- ----- Basin wide percent of average 76 86 UPPER BEAR RIVER BUG LAKE 7950 8.4 12.6 67 10.8 12.5 86 HAYDEN FORK 9212 10.4 9.3 112 13.0 13.2 98 KELLEY R.S. 8180 9.1 10.2 89 10.5 13.5 78 LILY LAKE 9156 8.4 7.8 108 10.2 11.1 92 MONTE CRISTO 8960 15.3 17.3 88 15.9 16.2 98 SALT RIVER SUMMIT 7760 8.3 8.8 94 9.8 12.2 80 TRIAL LAKE 9992 14.1 15.0 94 13.8 15.3 90 ----- ----- Basin wide percent of average 91 89 ----------------------------------------------------------------------------- -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.