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: MARCH 7 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 11.2 16.6 67 12.7 19.2 66 COTTONWOOD CREEK 7600 14.4 19.7 73 16.5 23.9 69 GRANITE CREEK 6770 11.1 16.9 66 13.5 17.9 75 GRASSY LAKE 7265 21.0 30.9 68 22.0 32.0 69 GROS VENTRE SUMMIT 8750 9.0 12.1 74 8.7 11.2 78 LEWIS LAKE DIVIDE 7850 19.1 31.0 62 19.5 32.6 60 PHILLIPS BENCH 8200 19.0 25.0 76 19.1 25.5 75 SALT RIVER SUMMIT 7600 10.2 12.7 80 13.6 16.4 83 SNAKE RIVER STATION 6920 10.6 17.3 61 12.6 20.1 63 SPRING CREEK DIVIDE 9000 19.7 23.1 85 19.0 23.3 82 THUMB DIVIDE 7980 11.2 16.3 69 10.8 16.6 65 TOGWOTEE PASS 9580 13.3 21.6 62 13.4 21.5 62 TWO OCEAN PLATEAU 9240 18.7 24.3 77 15.4 24.3 63 WILLOW CREEK 8450 20.4 26.5 77 23.0 28.1 82 ----- ----- Basin wide percent of average 71 70 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.8 20.6 57 10.5 17.7 59 BLACK BEAR 8170 27.7 34.4 81 26.0 34.8 75 CANYON 8090 7.5 11.9 63 9.0 13.5 67 FISHER CREEK 9100 19.8 30.8 64 19.4 31.8 61 MADISON PLATEAU 7750 15.6 21.9 71 17.2 23.1 74 NORTHEAST ENTRANCE 7350 4.4 10.1 44 5.8 11.2 52 PARKER PEAK 9400 12.1 18.9 64 10.0 14.2 70 SYLVAN LAKE 8420 12.2 19.6 62 13.7 18.5 74 THUMB DIVIDE 7980 11.2 16.3 69 10.8 16.6 65 TWO OCEAN PLATEAU 9240 18.7 24.3 77 15.4 24.3 63 WHISKEY CREEK 6800 10.9 15.0 73 14.0 18.1 77 WHITE MILL 8700 13.1 21.2 62 12.4 23.6 53 WOLVERINE 7650 6.3 10.9 58 6.1 11.5 53 ----- ----- Basin wide percent of average 67 66 WIND RIVER BURROUGHS CREEK 8750 8.0 13.0 62 8.1 14.2 57 COLD SPRINGS 9630 6.2 7.5 83 6.7 8.8 76 DEER PARK 9700 19.5 14.8 132 21.6 18.6 116 HOBBS PARK 10100 12.3 12.4 99 11.1 10.5 106 LITTLE WARM 9370 6.6 10.0 66 7.3 11.4 64 SOUTH PASS 9040 17.0 14.6 116 17.6 15.7 112 ST. LAWRENCE ALT 8620 6.0 6.2 97 6.8 7.4 92 TOGWOTEE PASS 9580 13.3 21.6 62 13.4 21.5 62 TOWNSEND CREEK 8700 8.4 7.2 117 11.5 9.4 122 ----- ----- Basin wide percent of average 91 89 BIGHORN BASIN BALD MTN. 9380 11.7 16.7 70 11.0 14.8 74 BEAR TRAP MEADOW 8200 3.1 4.6 67 5.3 6.8 78 BLACKWATER 9780 11.6 21.3 54 10.9 17.9 61 BONE SPRINGS DIV 9350 10.8 13.7 79 10.7 12.2 88 EVENING STAR 9200 13.8 26.0 53 15.4 22.5 68 GRAVE SPRINGS 8550 4.6 7.7 60 6.3 8.2 77 KIRWIN 9550 5.4 9.5 57 6.2 9.6 65 MARQUETTE 8760 2.7 7.2 38 4.5 7.9 57 MIDDLE POWDER 7760 4.6 9.5 48 -M 10.1 * OWL CREEK 8975 3.0 4.4 68 3.1 4.7 66 POWDER RIVER PASS 9480 8.7 9.1 96 9.6 10.5 91 SHELL CREEK 9580 10.6 12.3 86 9.2 11.3 81 SYLVAN LAKE 8420 12.2 19.6 62 13.7 18.5 74 SYLVAN ROAD 7120 7.2 11.7 62 10.0 16.0 62 TIMBER CREEK 7950 1.4 4.5 31 2.1 5.8 36 YOUNTS PEAK 8350 8.6 15.1 57 8.6 14.1 61 ----- ----- Basin wide percent of average 62 70 SHOSHONE RIVER BLACKWATER 9780 11.6 21.3 54 10.9 17.9 61 EVENING STAR 9200 13.8 26.0 53 15.4 22.5 68 KIRWIN 9550 5.4 9.5 57 6.2 9.6 65 MARQUETTE 8760 2.7 7.2 38 4.5 7.9 57 SYLVAN LAKE 8420 12.2 19.6 62 13.7 18.5 74 SYLVAN ROAD 7120 7.2 11.7 62 10.0 16.0 62 YOUNTS PEAK 8350 8.6 15.1 57 8.6 14.1 61 ----- ----- Basin wide percent of average 56 65 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.1 4.6 67 5.3 6.8 78 BIG GOOSE 7990 5.6 8.1 69 6.7 7.1 94 BONE SPRINGS DIV 9350 10.8 13.7 79 10.7 12.2 88 BURGESS JUNCTION 7880 6.1 9.4 65 7.5 10.0 75 CLOUD PEAK RESERVOIR 9860 10.3 10.6 97 8.4 10.4 81 DOME LAKE 8880 7.9 9.9 80 8.6 10.8 80 GRAVE SPRINGS 8550 4.6 7.7 60 6.3 8.2 77 HANSEN SAWMILL 8360 4.5 5.5 82 5.7 6.7 85 MIDDLE POWDER 7760 4.6 9.5 48 -M 10.1 * POWDER RIVER PASS 9480 8.7 9.1 96 9.6 10.5 91 SUCKER CREEK 8880 8.1 9.5 85 9.5 11.1 86 TIE CREEK 6870 .6 5.3 11 5.7 8.3 69 ----- ----- Basin wide percent of average 73 82 BELLE FOURCHE BLIND PARK 6890 4.0 7.6 53 6.0 9.6 62 COLE CANYON 5910 1.9 5.3 36 4.7 -M * NORTH RAPID CREEK 6130 -M 7.1 * 4.8 7.7 62 ----- ----- Basin wide percent of average 46 62 UPPER N. PLATTE RIVER COLUMBINE 9160 16.1 22.7 71 17.4 21.8 80 DIVIDE PEAK 8860 17.4 16.5 105 20.0 17.7 113 ELK RIVER 8700 18.9 16.8 112 18.4 16.8 110 JOE WRIGHT 10120 15.1 18.0 84 15.6 21.1 74 NORTH FRENCH CREEK 10130 20.2 23.9 85 19.4 21.1 92 OLD BATTLE 9920 29.2 27.5 106 31.2 29.7 105 SAGE CREEK BASIN 7850 13.0 9.6 135 14.4 10.3 140 SOUTH BRUSH CREEK 8440 9.0 10.7 84 10.3 13.9 74 TOWER 10500 30.8 39.1 79 29.9 33.2 90 WEBBER SPRINGS 9250 20.5 22.6 91 23.5 23.0 102 WILLOW CREEK PASS 9540 11.4 10.0 114 10.7 10.9 98 ----- ----- Basin wide percent of average 93 96 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 14.1 19.9 71 13.7 18.4 74 CASPER MTN. 7850 7.9 11.8 67 9.4 11.7 80 DEADMAN HILL 10220 12.7 13.6 93 10.4 14.0 74 DEER PARK 9700 19.5 14.8 132 21.6 18.6 116 LAPRELE CREEK 8375 5.3 9.4 56 7.4 10.5 70 RENO HILL 8500 6.7 11.1 60 7.3 12.2 60 ROACH 9700 12.1 14.5 83 14.7 15.6 94 SAND LAKE 10050 18.4 26.7 69 16.9 20.2 84 SOUTH PASS 9040 17.0 14.6 116 17.6 15.7 112 WINDY PEAK 7900 4.9 6.5 75 6.5 8.9 73 ----- ----- Basin wide percent of average 83 86 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.3 10.3 119 12.6 13.0 97 DIVIDE PEAK 8860 17.4 16.5 105 20.0 17.7 113 OLD BATTLE 9920 29.2 27.5 106 31.2 29.7 105 SANDSTONE RS 8150 10.5 13.2 80 16.5 16.3 101 WHISKEY PARK 8950 22.4 25.3 89 22.1 24.4 91 ----- ----- Basin wide percent of average 99 101 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.5 12.6 107 13.1 11.7 112 BLIND BULL SUM 8900 14.4 24.2 60 14.0 19.8 71 EAST RIM DIVIDE 7930 6.9 11.5 60 7.8 10.6 74 ELKHART PARK G.S. 9400 9.5 11.6 82 10.8 11.4 95 GROS VENTRE SUMMIT 8750 9.0 12.1 74 8.7 11.2 78 KENDALL R.S. 7740 9.3 13.0 72 10.3 12.9 80 LOOMIS PARK 8240 11.4 15.2 75 11.9 15.3 78 NEW FORK LAKE 8340 8.4 10.0 84 7.8 9.9 79 SNIDER BASIN 8060 11.7 12.9 91 12.2 14.2 86 SPRING CREEK DIVIDE 9000 19.7 23.1 85 19.0 23.3 82 TRIPLE PEAK 8500 15.2 21.8 70 16.4 21.6 76 ----- ----- Basin wide percent of average 77 82 LOWER GREEN RIVER HAMS FORK 7840 10.3 11.5 90 11.0 10.8 102 HEWINTA 9500 8.4 9.7 87 10.1 12.2 83 HICKERSON PARK 9100 7.2 6.1 118 9.6 6.5 148 HOLE-IN-ROCK 9150 5.8 6.0 97 8.6 6.1 141 INDIAN CREEK 9425 22.9 23.5 97 20.0 22.0 91 KELLEY R.S. 8180 14.1 14.7 96 15.8 17.9 88 STEEL CREEK PARK 10100 12.5 13.3 94 13.2 13.6 97 ----- ----- Basin wide percent of average 96 99 UPPER BEAR RIVER BUG LAKE 7950 18.2 18.0 101 19.9 16.8 118 HAYDEN FORK 9100 15.9 13.9 114 20.7 17.9 116 KELLEY R.S. 8180 14.1 14.7 96 15.8 17.9 88 LILY LAKE 9050 13.6 11.3 120 15.4 14.9 103 MONTE CRISTO 8960 24.9 25.9 96 25.0 22.0 114 SALT RIVER SUMMIT 7600 10.2 12.7 80 13.6 16.4 83 TRIAL LAKE 9960 25.8 21.6 119 26.8 21.4 125 ----- ----- Basin wide percent of average 104 108 ----------------------------------------------------------------------------- -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.