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: APRIL 5 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.5 17.7 116 25.5 22.1 115 COTTONWOOD CREEK 7600 30.5 24.1 127 31.7 28.3 112 GRANITE CREEK 6770 21.5 18.1 119 23.6 20.4 116 GRASSY LAKE 7265 39.1 36.4 107 42.6 37.0 115 GROS VENTRE SUMMIT 8750 12.8 14.5 88 13.1 13.3 98 LEWIS LAKE DIVIDE 7850 42.1 36.1 117 39.8 37.8 105 PHILLIPS BENCH 8200 35.3 29.6 119 34.8 29.9 116 SALT RIVER SUMMIT 7600 16.5 14.5 114 19.6 19.3 102 SNAKE RIVER STATION 6920 21.2 18.7 113 26.3 22.9 115 SPRING CREEK DIVIDE 9000 32.0 27.4 117 -M 27.3 * THUMB DIVIDE 7980 19.8 19.1 104 19.4 19.5 99 TOGWOTEE PASS 9580 25.2 25.6 98 26.1 25.4 103 TWO OCEAN PLATEAU 9240 35.8 29.0 123 29.1 28.5 102 WILLOW CREEK 8450 36.8 31.0 119 40.7 33.3 122 ----- ----- Basin wide percent of average 114 110 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 21.4 24.1 89 19.1 20.7 92 BLACK BEAR 8170 50.4 40.1 126 -M 41.6 * CANYON 8090 15.0 13.9 108 17.6 15.9 111 FISHER CREEK 9100 39.4 35.9 110 37.3 37.5 99 MADISON PLATEAU 7750 28.5 25.7 111 33.4 27.5 121 NORTHEAST ENTRANCE 7350 10.0 11.1 90 12.5 13.1 95 PARKER PEAK 9400 18.9 22.3 85 17.1 16.8 102 SYLVAN LAKE 8420 18.5 23.2 80 22.5 21.6 104 THUMB DIVIDE 7980 19.8 19.1 104 19.4 19.5 99 TWO OCEAN PLATEAU 9240 35.8 29.0 123 29.1 28.5 102 WHISKEY CREEK 6800 16.6 17.5 95 23.9 21.6 111 WHITE MILL 8700 25.9 25.0 104 23.6 27.8 85 WOLVERINE 7650 8.5 11.4 75 8.9 13.2 67 ----- ----- Basin wide percent of average 103 100 WIND RIVER BURROUGHS CREEK 8750 14.0 14.9 94 16.2 16.8 96 COLD SPRINGS 9630 5.7 8.5 67 8.6 11.1 77 DEER PARK 9700 17.1 17.1 100 20.7 22.8 91 HOBBS PARK 10100 10.9 15.6 70 11.8 13.4 88 LITTLE WARM 9370 9.2 12.1 76 12.0 13.9 86 SOUTH PASS 9040 15.7 17.0 92 16.8 19.1 88 ST. LAWRENCE ALT 8620 3.8 7.4 51 6.6 9.3 71 TOGWOTEE PASS 9580 25.2 25.6 98 26.1 25.4 103 TOWNSEND CREEK 8700 6.5 9.1 71 9.5 12.2 78 ----- ----- Basin wide percent of average 85 89 BIGHORN BASIN BALD MTN. 9380 16.5 20.5 80 13.5 18.0 75 BEAR TRAP MEADOW 8200 5.5 5.1 108 7.8 8.6 91 BLACKWATER 9780 22.6 25.4 89 20.4 21.2 96 BONE SPRINGS DIV 9350 14.3 16.8 85 15.0 15.2 99 EVENING STAR 9200 24.9 30.6 81 27.6 26.1 106 GRAVE SPRINGS 8550 9.6 9.8 98 11.6 10.2 114 KIRWIN 9550 9.9 11.7 85 10.8 11.7 92 MARQUETTE 8760 2.5 9.5 26 7.3 10.3 71 MIDDLE POWDER 7760 12.5 12.4 101 10.0 12.9 78 OWL CREEK 8975 3.0 5.5 55 6.0 6.2 97 POWDER RIVER PASS 9480 10.0 11.2 89 12.0 12.9 93 SHELL CREEK 9580 14.5 15.2 95 13.4 13.9 96 SYLVAN LAKE 8420 18.5 23.2 80 22.5 21.6 104 SYLVAN ROAD 7120 10.9 12.7 86 16.5 18.2 91 TIMBER CREEK 7950 2.2 5.8 38 5.0 7.8 64 YOUNTS PEAK 8350 14.2 17.5 81 17.3 16.6 104 ----- ----- Basin wide percent of average 82 94 SHOSHONE RIVER BLACKWATER 9780 22.6 25.4 89 20.4 21.2 96 EVENING STAR 9200 24.9 30.6 81 27.6 26.1 106 KIRWIN 9550 9.9 11.7 85 10.8 11.7 92 MARQUETTE 8760 2.5 9.5 26 7.3 10.3 71 SYLVAN LAKE 8420 18.5 23.2 80 22.5 21.6 104 SYLVAN ROAD 7120 10.9 12.7 86 16.5 18.2 91 YOUNTS PEAK 8350 14.2 17.5 81 17.3 16.6 104 ----- ----- Basin wide percent of average 79 97 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 5.1 108 7.8 8.6 91 BIG GOOSE 7990 6.7 11.2 60 9.0 9.1 99 BONE SPRINGS DIV 9350 14.3 16.8 85 15.0 15.2 99 BURGESS JUNCTION 7880 9.7 12.1 80 10.8 12.6 86 CLOUD PEAK RESERVOIR 9860 13.1 14.0 94 12.2 13.5 90 DOME LAKE 8880 10.2 13.0 78 11.3 13.7 82 GRAVE SPRINGS 8550 9.6 9.8 98 11.6 10.2 114 HANSEN SAWMILL 8360 4.8 6.4 75 7.2 8.6 84 MIDDLE POWDER 7760 12.5 12.4 101 10.0 12.9 78 POWDER RIVER PASS 9480 10.0 11.2 89 12.0 12.9 93 SUCKER CREEK 8880 10.4 12.3 85 13.8 14.1 98 TIE CREEK 6870 4.1 5.9 69 9.9 10.4 95 ----- ----- Basin wide percent of average 85 92 BELLE FOURCHE BLIND PARK 6890 7.0 8.4 83 10.7 11.5 93 COLE CANYON 5910 4.8 6.1 79 9.1 -M * NORTH RAPID CREEK 6130 6.4 8.4 76 8.7 9.0 97 ----- ----- Basin wide percent of average 79 95 UPPER N. PLATTE RIVER COLUMBINE 9160 31.5 24.9 127 33.8 25.8 131 DIVIDE PEAK 8860 19.1 20.3 94 22.5 21.3 106 ELK RIVER 8700 21.0 19.6 107 21.7 20.1 108 JOE WRIGHT 10120 22.1 22.1 100 26.2 25.6 102 NORTH FRENCH CREEK 10130 34.3 30.4 113 32.6 25.5 128 OLD BATTLE 9920 38.2 33.1 115 42.4 35.5 119 SAGE CREEK BASIN 7850 12.2 11.7 104 14.8 12.4 119 SOUTH BRUSH CREEK 8440 12.2 13.2 92 17.2 16.9 102 TOWER 10500 52.2 46.9 111 -M 39.5 * WEBBER SPRINGS 9250 28.8 26.3 110 34.6 27.4 126 WILLOW CREEK PASS 9540 11.9 12.5 95 13.8 13.3 104 ----- ----- Basin wide percent of average 109 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 26.5 24.6 108 22.3 22.8 98 CASPER MTN. 7850 15.8 15.2 104 16.3 15.1 108 DEADMAN HILL 10220 16.7 16.9 99 18.1 17.5 103 DEER PARK 9700 17.1 17.1 100 20.7 22.8 91 LAPRELE CREEK 8375 9.5 10.8 88 11.7 13.1 89 RENO HILL 8500 15.1 14.8 102 17.1 15.7 109 ROACH 9700 16.7 17.5 95 19.9 19.2 104 SAND LAKE 10050 32.6 33.4 98 31.3 24.9 126 SOUTH PASS 9040 15.7 17.0 92 16.8 19.1 88 WINDY PEAK 7900 7.9 8.1 98 10.2 11.0 93 ----- ----- Basin wide percent of average 99 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.5 10.3 112 16.8 16.3 103 DIVIDE PEAK 8860 19.1 20.3 94 22.5 21.3 106 OLD BATTLE 9920 38.2 33.1 115 42.4 35.5 119 SANDSTONE RS 8150 16.1 14.4 112 21.7 19.2 113 WHISKEY PARK 8950 41.0 30.5 134 36.6 29.5 124 ----- ----- Basin wide percent of average 116 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.5 14.9 104 15.8 13.8 114 BLIND BULL SUM 8900 29.5 28.5 104 21.8 22.9 95 EAST RIM DIVIDE 7930 11.4 13.5 84 11.8 12.4 95 ELKHART PARK G.S. 9400 14.7 13.7 107 15.4 13.7 112 GROS VENTRE SUMMIT 8750 12.8 14.5 88 13.1 13.3 98 KENDALL R.S. 7740 14.4 14.3 101 15.5 15.0 103 LOOMIS PARK 8240 20.0 17.4 115 20.1 17.9 112 NEW FORK LAKE 8340 11.0 11.3 97 10.8 11.7 92 SNIDER BASIN 8060 19.2 14.8 130 17.5 16.6 105 SPRING CREEK DIVIDE 9000 32.0 27.4 117 -M 27.3 * TRIPLE PEAK 8500 31.4 25.4 124 31.5 25.6 123 ----- ----- Basin wide percent of average 108 106 LOWER GREEN RIVER HAMS FORK 7840 15.4 11.4 135 14.3 12.6 113 HEWINTA 9500 11.2 12.2 92 15.1 15.1 100 HICKERSON PARK 9100 5.2 7.9 66 8.2 8.3 99 HOLE-IN-ROCK 9150 7.5 7.2 104 8.6 7.8 110 INDIAN CREEK 9425 32.6 28.6 114 -M 26.2 * KELLEY R.S. 8180 20.9 17.1 122 22.6 21.0 108 STEEL CREEK PARK 10100 16.5 16.3 101 17.5 16.8 104 ----- ----- Basin wide percent of average 109 106 UPPER BEAR RIVER BUG LAKE 7950 25.8 21.3 121 23.2 19.9 117 HAYDEN FORK 9100 -M 16.6 * -M 21.7 * KELLEY R.S. 8180 20.9 17.1 122 22.6 21.0 108 LILY LAKE 9050 13.9 13.8 101 17.0 18.1 94 MONTE CRISTO 8960 37.3 30.2 124 34.1 26.3 130 SALT RIVER SUMMIT 7600 16.5 14.5 114 19.6 19.3 102 TRIAL LAKE 9960 31.3 25.6 122 28.8 25.8 112 ----- ----- Basin wide percent of average 119 111 ----------------------------------------------------------------------------- -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 1971-2000. 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.