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: MARCH 6 , 2004 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 17.7 16.5 107 18.6 19.1 97 COTTONWOOD CREEK 7600 18.0 19.5 92 18.8 23.8 79 GRANITE CREEK 6770 15.8 16.7 95 16.3 17.8 92 GRASSY LAKE 7265 34.7 30.7 113 32.2 31.9 101 GROS VENTRE SUMMIT 8750 9.5 12.0 79 -M 11.2 * LEWIS LAKE DIVIDE 7850 30.1 30.8 98 29.6 32.4 91 PHILLIPS BENCH 8200 -M 24.8 * -M 25.4 * SALT RIVER SUMMIT 7600 10.8 12.6 86 13.0 16.3 80 SNAKE RIVER STATION 6920 19.3 17.2 112 17.5 20.0 88 SPRING CREEK DIVIDE 9000 19.0 23.0 83 18.0 23.2 78 THUMB DIVIDE 7980 17.0 16.1 106 15.3 16.5 93 TOGWOTEE PASS 9580 17.6 21.4 82 17.7 21.4 83 TWO OCEAN PLATEAU 9240 23.6 24.1 98 21.3 24.1 88 WILLOW CREEK 8450 25.7 26.3 98 26.6 27.9 95 ----- ----- Basin wide percent of average 97 89 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 16.8 20.5 82 16.3 17.6 93 BLACK BEAR 8170 38.9 34.1 114 -M 34.5 * CANYON 8090 11.2 11.8 95 12.1 13.4 90 FISHER CREEK 9100 26.9 30.6 88 25.4 31.6 80 MADISON PLATEAU 7750 24.2 21.7 112 22.4 22.9 98 NORTHEAST ENTRANCE 7350 6.6 10.0 66 8.9 11.1 80 PARKER PEAK 9400 16.0 18.8 85 12.3 14.1 87 SYLVAN LAKE 8420 14.9 19.4 77 17.3 18.4 94 THUMB DIVIDE 7980 17.0 16.1 106 15.3 16.5 93 TWO OCEAN PLATEAU 9240 23.6 24.1 98 21.3 24.1 88 WHISKEY CREEK 6800 17.2 14.9 115 18.9 18.0 105 WHITE MILL 8700 16.0 21.0 76 17.0 23.4 73 WOLVERINE 7650 7.9 10.8 73 7.9 11.5 69 ----- ----- Basin wide percent of average 93 88 WIND RIVER BURROUGHS CREEK 8750 9.9 12.9 77 10.8 14.1 77 COLD SPRINGS 9630 5.7 7.5 76 5.9 8.8 67 DEER PARK 9700 14.6 14.7 99 16.8 18.5 91 HOBBS PARK 10100 11.2 12.3 91 10.1 10.4 97 LITTLE WARM 9370 6.8 9.9 69 7.5 11.3 66 SOUTH PASS 9040 14.6 14.5 101 14.6 15.6 94 ST. LAWRENCE ALT 8620 5.8 6.2 94 6.4 7.3 88 TOGWOTEE PASS 9580 17.6 21.4 82 17.7 21.4 83 TOWNSEND CREEK 8700 9.1 7.2 126 9.9 9.4 105 ----- ----- Basin wide percent of average 89 85 BIGHORN BASIN BALD MTN. 9380 14.9 16.6 90 13.0 14.6 89 BEAR TRAP MEADOW 8200 5.9 4.5 131 5.4 6.7 81 BLACKWATER 9780 17.9 21.1 85 16.0 17.8 90 BONE SPRINGS DIV 9350 13.0 13.6 96 13.3 12.1 110 EVENING STAR 9200 19.0 25.8 74 21.4 22.4 96 GRAVE SPRINGS 8550 8.6 7.6 113 7.9 8.1 98 KIRWIN 9550 5.4 9.5 57 6.4 9.5 67 MARQUETTE 8760 6.6 7.2 92 6.9 7.9 87 MIDDLE POWDER 7760 9.5 9.4 101 7.2 10.1 71 OWL CREEK 8975 3.9 4.3 91 3.6 4.6 78 POWDER RIVER PASS 9480 9.1 9.1 100 9.6 10.4 92 SHELL CREEK 9580 11.7 12.2 96 10.8 11.2 96 SYLVAN LAKE 8420 14.9 19.4 77 17.3 18.4 94 SYLVAN ROAD 7120 9.9 11.7 85 12.5 16.0 78 TIMBER CREEK 7950 4.2 4.5 93 4.8 5.7 84 YOUNTS PEAK 8350 6.0 15.0 40 9.7 14.0 69 ----- ----- Basin wide percent of average 84 87 SHOSHONE RIVER BLACKWATER 9780 17.9 21.1 85 16.0 17.8 90 EVENING STAR 9200 19.0 25.8 74 21.4 22.4 96 KIRWIN 9550 5.4 9.5 57 6.4 9.5 67 MARQUETTE 8760 6.6 7.2 92 6.9 7.9 87 SYLVAN LAKE 8420 14.9 19.4 77 17.3 18.4 94 SYLVAN ROAD 7120 9.9 11.7 85 12.5 16.0 78 YOUNTS PEAK 8350 6.0 15.0 40 9.7 14.0 69 ----- ----- Basin wide percent of average 73 85 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.9 4.5 131 5.4 6.7 81 BIG GOOSE 7990 7.3 8.1 90 7.7 7.1 108 BONE SPRINGS DIV 9350 13.0 13.6 96 13.3 12.1 110 BURGESS JUNCTION 7880 8.5 9.4 90 8.4 9.9 85 CLOUD PEAK RESERVOIR 9860 11.8 10.5 112 10.1 10.3 98 DOME LAKE 8880 9.4 9.9 95 9.5 10.7 89 GRAVE SPRINGS 8550 8.6 7.6 113 7.9 8.1 98 HANSEN SAWMILL 8360 6.4 5.4 119 6.2 6.6 94 MIDDLE POWDER 7760 9.5 9.4 101 7.2 10.1 71 POWDER RIVER PASS 9480 9.1 9.1 100 9.6 10.4 92 SUCKER CREEK 8880 10.3 9.5 108 10.4 11.0 95 TIE CREEK 6870 7.3 5.2 140 8.7 8.2 106 ----- ----- Basin wide percent of average 105 94 BELLE FOURCHE BLIND PARK 6890 5.0 7.5 67 7.2 9.6 75 COLE CANYON 5910 4.2 5.3 79 5.3 -M * NORTH RAPID CREEK 6130 5.0 7.0 71 6.2 7.7 81 ----- ----- Basin wide percent of average 72 77 UPPER N. PLATTE RIVER COLUMBINE 9160 18.5 22.6 82 19.1 21.6 88 DIVIDE PEAK 8860 16.6 16.3 102 16.6 17.6 94 ELK RIVER 8700 16.0 16.7 96 16.8 16.7 101 JOE WRIGHT 10120 12.9 17.9 72 15.2 21.0 72 NORTH FRENCH CREEK 10130 18.8 23.7 79 17.5 20.9 84 OLD BATTLE 9920 25.4 27.3 93 27.0 29.5 92 SAGE CREEK BASIN 7850 12.6 9.5 133 12.2 10.3 118 SOUTH BRUSH CREEK 8440 9.4 10.6 89 9.8 13.8 71 TOWER 10500 30.9 38.9 79 31.1 33.0 94 WEBBER SPRINGS 9250 20.0 22.4 89 21.3 22.9 93 WILLOW CREEK PASS 9540 8.8 10.0 88 8.2 10.8 76 ----- ----- Basin wide percent of average 88 89 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 13.1 19.7 66 12.5 18.2 69 CASPER MTN. 7850 11.3 11.7 97 8.8 11.6 76 DEADMAN HILL 10220 9.4 13.5 70 12.4 13.9 89 DEER PARK 9700 14.6 14.7 99 16.8 18.5 91 LAPRELE CREEK 8375 7.0 9.3 75 7.7 10.4 74 RENO HILL 8500 11.1 11.0 101 10.6 12.1 88 ROACH 9700 12.9 14.4 90 14.2 15.5 92 SAND LAKE 10050 18.8 26.4 71 18.2 20.1 91 SOUTH PASS 9040 14.6 14.5 101 14.6 15.6 94 WINDY PEAK 7900 4.5 6.4 70 5.5 8.8 62 ----- ----- Basin wide percent of average 83 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 13.4 10.2 131 12.7 12.9 98 DIVIDE PEAK 8860 16.6 16.3 102 16.6 17.6 94 OLD BATTLE 9920 25.4 27.3 93 27.0 29.5 92 SANDSTONE RS 8150 10.5 13.1 80 16.6 16.2 102 WHISKEY PARK 8950 22.6 25.1 90 20.4 24.3 84 ----- ----- Basin wide percent of average 96 93 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.5 12.5 92 10.9 11.7 93 BLIND BULL SUM 8900 19.3 24.0 80 15.5 19.6 79 EAST RIM DIVIDE 7930 9.5 11.4 83 9.7 10.5 92 ELKHART PARK G.S. 9400 10.6 11.5 92 10.9 11.3 96 GROS VENTRE SUMMIT 8750 9.5 12.0 79 -M 11.2 * KENDALL R.S. 7740 12.0 12.9 93 12.1 12.9 94 LOOMIS PARK 8240 14.0 15.1 93 14.0 15.3 92 NEW FORK LAKE 8340 9.2 9.9 93 8.4 9.9 85 SNIDER BASIN 8060 11.0 12.8 86 10.8 14.1 77 SPRING CREEK DIVIDE 9000 19.0 23.0 83 18.0 23.2 78 TRIPLE PEAK 8500 18.4 21.7 85 19.3 21.4 90 ----- ----- Basin wide percent of average 86 86 LOWER GREEN RIVER HAMS FORK 7840 9.4 11.4 82 8.6 10.7 80 HEWINTA 9500 8.9 9.6 93 9.9 12.1 82 HICKERSON PARK 9100 6.7 6.0 112 8.4 6.5 129 HOLE-IN-ROCK 9150 5.9 6.0 98 6.1 6.1 100 INDIAN CREEK 9425 19.9 23.3 85 16.9 21.8 78 KELLEY R.S. 8180 12.8 14.6 88 13.4 17.7 76 STEEL CREEK PARK 10100 11.0 13.2 83 11.2 13.4 84 ----- ----- Basin wide percent of average 89 84 UPPER BEAR RIVER BUG LAKE 7950 16.1 17.8 90 15.1 16.7 90 HAYDEN FORK 9100 10.7 13.8 78 14.2 17.8 80 KELLEY R.S. 8180 12.8 14.6 88 13.4 17.7 76 LILY LAKE 9050 9.7 11.2 87 11.3 14.8 76 MONTE CRISTO 8960 22.6 25.7 88 21.2 21.8 97 SALT RIVER SUMMIT 7600 10.8 12.6 86 13.0 16.3 80 TRIAL LAKE 9960 16.9 21.5 79 17.9 21.3 84 ----- ----- Basin wide percent of average 85 84 ----------------------------------------------------------------------------- -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.