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: MARCH 16 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.8 17.3 62 12.9 20.1 64 COTTONWOOD CREEK 7600 15.2 21.6 70 17.3 25.3 68 GRANITE CREEK 6770 10.7 17.9 60 13.5 18.7 72 GRASSY LAKE 7265 21.6 33.0 65 22.2 33.6 66 GROS VENTRE SUMMIT 8750 9.0 13.0 69 8.8 11.9 74 LEWIS LAKE DIVIDE 7850 19.5 33.0 59 19.8 34.3 58 PHILLIPS BENCH 8200 19.5 26.7 73 19.2 26.9 71 SALT RIVER SUMMIT 7600 10.4 13.5 77 13.9 17.3 80 SNAKE RIVER STATION 6920 10.4 18.4 57 12.8 21.0 61 SPRING CREEK DIVIDE 9000 20.6 24.5 84 19.7 24.6 80 THUMB DIVIDE 7980 11.1 17.5 63 10.9 17.5 62 TOGWOTEE PASS 9580 14.1 22.8 62 14.2 22.7 63 TWO OCEAN PLATEAU 9240 19.5 25.8 76 15.9 25.6 62 WILLOW CREEK 8450 21.0 28.2 74 23.6 29.7 79 ----- ----- Basin wide percent of average 68 68 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.7 22.0 58 11.4 18.6 61 BLACK BEAR 8170 28.4 36.6 78 26.0 37.0 70 CANYON 8090 7.9 12.8 62 9.3 14.3 65 FISHER CREEK 9100 21.1 32.5 65 20.8 33.6 62 MADISON PLATEAU 7750 15.8 23.3 68 17.1 24.5 70 NORTHEAST ENTRANCE 7350 5.1 10.6 48 6.4 11.8 54 PARKER PEAK 9400 13.3 20.0 66 11.0 15.0 73 SYLVAN LAKE 8420 12.6 20.7 61 14.2 19.4 73 THUMB DIVIDE 7980 11.1 17.5 63 10.9 17.5 62 TWO OCEAN PLATEAU 9240 19.5 25.8 76 15.9 25.6 62 WHISKEY CREEK 6800 10.9 16.0 68 14.1 19.2 73 WHITE MILL 8700 13.9 22.4 62 13.1 24.9 53 WOLVERINE 7650 6.7 11.3 59 6.4 12.0 53 ----- ----- Basin wide percent of average 66 65 WIND RIVER BURROUGHS CREEK 8750 8.1 13.6 60 8.4 15.0 56 COLD SPRINGS 9630 6.3 8.1 78 6.9 9.5 73 DEER PARK 9700 20.2 15.4 131 21.9 19.9 110 HOBBS PARK 10100 12.8 13.2 97 11.5 11.4 101 LITTLE WARM 9370 6.8 10.7 64 7.5 12.2 61 SOUTH PASS 9040 17.8 15.5 115 18.3 16.7 110 ST. LAWRENCE ALT 8620 6.2 6.6 94 7.5 7.9 95 TOGWOTEE PASS 9580 14.1 22.8 62 14.2 22.7 63 TOWNSEND CREEK 8700 9.1 7.7 118 12.0 10.3 117 ----- ----- Basin wide percent of average 89 86 BIGHORN BASIN BALD MTN. 9380 14.0 17.7 79 12.8 15.7 82 BEAR TRAP MEADOW 8200 4.0 4.9 82 6.3 7.3 86 BLACKWATER 9780 12.2 22.5 54 11.4 18.9 60 BONE SPRINGS DIV 9350 12.5 14.5 86 12.3 13.1 94 EVENING STAR 9200 14.8 27.5 54 16.4 23.6 69 GRAVE SPRINGS 8550 5.6 8.3 67 7.0 8.7 80 KIRWIN 9550 5.7 10.2 56 6.4 10.2 63 MARQUETTE 8760 3.7 7.7 48 5.5 8.6 64 MIDDLE POWDER 7760 6.2 10.2 61 6.3 11.0 57 OWL CREEK 8975 3.3 4.8 69 3.3 5.1 65 POWDER RIVER PASS 9480 9.8 9.8 100 10.7 11.2 96 SHELL CREEK 9580 11.9 13.1 91 10.4 12.1 86 SYLVAN LAKE 8420 12.6 20.7 61 14.2 19.4 73 SYLVAN ROAD 7120 7.7 12.2 63 10.4 16.7 62 TIMBER CREEK 7950 2.3 5.0 46 3.1 6.4 48 YOUNTS PEAK 8350 8.9 15.8 56 8.8 14.9 59 ----- ----- Basin wide percent of average 66 72 SHOSHONE RIVER BLACKWATER 9780 12.2 22.5 54 11.4 18.9 60 EVENING STAR 9200 14.8 27.5 54 16.4 23.6 69 KIRWIN 9550 5.7 10.2 56 6.4 10.2 63 MARQUETTE 8760 3.7 7.7 48 5.5 8.6 64 SYLVAN LAKE 8420 12.6 20.7 61 14.2 19.4 73 SYLVAN ROAD 7120 7.7 12.2 63 10.4 16.7 62 YOUNTS PEAK 8350 8.9 15.8 56 8.8 14.9 59 ----- ----- Basin wide percent of average 56 65 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.0 4.9 82 6.3 7.3 86 BIG GOOSE 7990 6.8 8.8 77 8.0 7.6 105 BONE SPRINGS DIV 9350 12.5 14.5 86 12.3 13.1 94 BURGESS JUNCTION 7880 -M 10.1 * -M 10.8 * CLOUD PEAK RESERVOIR 9860 12.3 11.5 107 9.9 11.3 88 DOME LAKE 8880 9.3 10.6 88 10.1 11.7 86 GRAVE SPRINGS 8550 5.6 8.3 67 7.0 8.7 80 HANSEN SAWMILL 8360 5.2 5.8 90 6.4 7.2 89 MIDDLE POWDER 7760 6.2 10.2 61 6.3 11.0 57 POWDER RIVER PASS 9480 9.8 9.8 100 10.7 11.2 96 SUCKER CREEK 8880 10.5 10.2 103 11.8 12.0 98 TIE CREEK 6870 2.1 5.8 36 7.5 8.9 84 ----- ----- Basin wide percent of average 84 88 BELLE FOURCHE BLIND PARK 6890 4.8 8.3 58 7.0 10.2 69 COLE CANYON 5910 2.7 5.6 48 5.3 -M * NORTH RAPID CREEK 6130 3.6 7.5 48 5.7 8.0 71 ----- ----- Basin wide percent of average 52 70 UPPER N. PLATTE RIVER COLUMBINE 9160 16.6 23.9 69 17.7 23.0 77 DIVIDE PEAK 8860 17.8 17.8 100 20.2 18.8 107 ELK RIVER 8700 18.4 17.8 103 18.3 17.8 103 JOE WRIGHT 10120 16.0 19.1 84 16.6 22.5 74 NORTH FRENCH CREEK 10130 21.0 25.7 82 19.9 22.4 89 OLD BATTLE 9920 29.4 29.4 100 31.1 31.5 99 SAGE CREEK BASIN 7850 13.3 10.4 128 14.5 11.0 132 SOUTH BRUSH CREEK 8440 9.4 11.7 80 10.9 14.8 74 TOWER 10500 31.3 41.5 75 30.4 35.1 87 WEBBER SPRINGS 9250 20.9 24.4 86 23.6 24.4 97 WILLOW CREEK PASS 9540 11.5 10.7 107 10.7 11.6 92 ----- ----- Basin wide percent of average 88 92 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 15.0 21.2 71 14.2 19.7 72 CASPER MTN. 7850 9.1 12.6 72 9.9 12.7 78 DEADMAN HILL 10220 13.2 14.5 91 11.1 15.1 74 DEER PARK 9700 20.2 15.4 131 21.9 19.9 110 LAPRELE CREEK 8375 6.0 10.1 59 8.0 11.3 71 RENO HILL 8500 8.1 12.1 67 8.6 13.2 65 ROACH 9700 12.5 15.4 81 15.0 16.7 90 SAND LAKE 10050 19.4 28.9 67 17.8 21.7 82 SOUTH PASS 9040 17.8 15.5 115 18.3 16.7 110 WINDY PEAK 7900 5.5 7.3 75 7.2 9.5 76 ----- ----- Basin wide percent of average 83 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.8 11.2 105 12.5 14.0 89 DIVIDE PEAK 8860 17.8 17.8 100 20.2 18.8 107 OLD BATTLE 9920 29.4 29.4 100 31.1 31.5 99 SANDSTONE RS 8150 10.1 14.2 71 16.5 17.2 96 WHISKEY PARK 8950 23.3 27.5 85 22.3 26.0 86 ----- ----- Basin wide percent of average 92 95 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.7 13.4 102 13.2 12.4 106 BLIND BULL SUM 8900 14.8 25.9 57 14.1 20.7 68 EAST RIM DIVIDE 7930 6.7 12.2 55 7.9 11.2 71 ELKHART PARK G.S. 9400 9.6 12.4 77 10.9 12.1 90 GROS VENTRE SUMMIT 8750 9.0 13.0 69 8.8 11.9 74 KENDALL R.S. 7740 9.6 13.9 69 10.5 13.6 77 LOOMIS PARK 8240 11.5 16.3 71 12.1 16.2 75 NEW FORK LAKE 8340 8.6 10.5 82 7.9 10.5 75 SNIDER BASIN 8060 12.0 13.7 88 12.5 15.0 83 SPRING CREEK DIVIDE 9000 20.6 24.5 84 19.7 24.6 80 TRIPLE PEAK 8500 16.1 23.2 69 17.0 22.8 75 ----- ----- Basin wide percent of average 74 79 LOWER GREEN RIVER HAMS FORK 7840 10.1 12.2 83 11.1 11.3 98 HEWINTA 9500 9.3 10.5 89 10.3 13.1 79 HICKERSON PARK 9100 7.0 6.6 106 9.7 7.1 137 HOLE-IN-ROCK 9150 5.9 6.4 92 8.8 6.6 133 INDIAN CREEK 9425 23.3 25.3 92 20.2 23.3 87 KELLEY R.S. 8180 14.1 15.7 90 16.0 18.8 85 STEEL CREEK PARK 10100 12.7 14.3 89 13.3 14.5 92 ----- ----- Basin wide percent of average 91 94 UPPER BEAR RIVER BUG LAKE 7950 18.4 19.2 96 20.0 17.8 112 HAYDEN FORK 9100 16.1 15.0 107 20.8 19.1 109 KELLEY R.S. 8180 14.1 15.7 90 16.0 18.8 85 LILY LAKE 9050 13.6 12.0 113 15.5 15.9 97 MONTE CRISTO 8960 25.6 27.7 92 25.1 23.3 108 SALT RIVER SUMMIT 7600 10.4 13.5 77 13.9 17.3 80 TRIAL LAKE 9960 26.4 23.1 114 27.3 22.8 120 ----- ----- Basin wide percent of average 99 103 ----------------------------------------------------------------------------- -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.