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: FEBRUARY 19 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.3 14.9 69 11.8 17.3 68 COTTONWOOD CREEK 7600 12.8 16.7 77 15.0 21.5 70 GRANITE CREEK 6770 10.2 14.7 69 12.7 16.1 79 GRASSY LAKE 7265 18.9 27.1 70 20.0 28.9 69 GROS VENTRE SUMMIT 8750 8.8 10.7 82 8.5 10.1 84 LEWIS LAKE DIVIDE 7850 17.8 27.3 65 18.0 29.1 62 PHILLIPS BENCH 8200 17.6 21.9 80 17.9 22.8 79 SALT RIVER SUMMIT 7600 9.5 11.2 85 12.8 14.7 87 SNAKE RIVER STATION 6920 9.5 15.2 62 11.8 18.1 65 SPRING CREEK DIVIDE 9000 18.4 20.4 90 17.9 21.0 85 THUMB DIVIDE 7980 10.6 14.0 76 10.4 14.8 70 TOGWOTEE PASS 9580 12.8 19.3 66 12.8 19.3 66 TWO OCEAN PLATEAU 9240 17.7 21.7 82 14.6 21.6 68 WILLOW CREEK 8450 17.8 23.5 76 20.7 25.1 82 ----- ----- Basin wide percent of average 75 73 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.1 18.6 60 9.9 16.0 62 BLACK BEAR 8170 26.5 30.2 88 23.9 30.7 78 CANYON 8090 7.1 10.4 68 8.6 12.2 70 FISHER CREEK 9100 19.0 27.5 69 17.8 28.5 62 MADISON PLATEAU 7750 15.3 19.2 80 16.7 20.5 81 NORTHEAST ENTRANCE 7350 4.3 9.1 47 5.5 10.1 54 PARKER PEAK 9400 11.7 16.9 69 9.7 12.8 76 SYLVAN LAKE 8420 11.3 17.3 65 12.9 16.8 77 THUMB DIVIDE 7980 10.6 14.0 76 10.4 14.8 70 TWO OCEAN PLATEAU 9240 17.7 21.7 82 14.6 21.6 68 WHISKEY CREEK 6800 10.5 13.2 80 13.5 16.1 84 WHITE MILL 8700 12.3 18.7 66 11.6 21.1 55 WOLVERINE 7650 6.0 10.0 60 5.8 10.5 55 ----- ----- Basin wide percent of average 72 69 WIND RIVER BURROUGHS CREEK 8750 7.5 11.7 64 7.7 12.8 60 COLD SPRINGS 9630 6.2 6.6 94 6.6 7.9 84 DEER PARK 9700 19.1 13.9 137 20.9 16.6 126 HOBBS PARK 10100 12.2 11.0 111 11.1 9.3 119 LITTLE WARM 9370 6.5 8.8 74 7.1 10.3 69 SOUTH PASS 9040 16.7 12.9 129 17.2 14.0 123 ST. LAWRENCE ALT 8620 5.8 5.4 107 6.8 6.5 105 TOGWOTEE PASS 9580 12.8 19.3 66 12.8 19.3 66 TOWNSEND CREEK 8700 8.5 6.5 131 11.5 8.3 139 ----- ----- Basin wide percent of average 99 97 BIGHORN BASIN BALD MTN. 9380 11.4 14.9 77 10.6 13.3 80 BEAR TRAP MEADOW 8200 3.0 4.0 75 5.2 6.1 85 BLACKWATER 9780 11.0 18.9 58 10.5 16.1 65 BONE SPRINGS DIV 9350 10.2 12.1 84 9.8 10.9 90 EVENING STAR 9200 13.3 23.1 58 14.6 20.3 72 GRAVE SPRINGS 8550 4.5 6.7 67 6.0 7.3 82 KIRWIN 9550 5.3 8.5 62 6.0 8.6 70 MARQUETTE 8760 2.6 6.5 40 4.5 7.0 64 MIDDLE POWDER 7760 4.6 8.4 55 5.5 9.1 60 OWL CREEK 8975 2.8 3.8 74 3.0 4.2 71 POWDER RIVER PASS 9480 8.2 8.1 101 9.2 9.4 98 SHELL CREEK 9580 10.0 11.0 91 8.9 10.3 86 SYLVAN LAKE 8420 11.3 17.3 65 12.9 16.8 77 SYLVAN ROAD 7120 6.8 10.5 65 9.6 14.8 65 TIMBER CREEK 7950 1.5 4.0 38 2.2 5.1 43 YOUNTS PEAK 8350 8.2 13.6 60 8.1 12.8 63 ----- ----- Basin wide percent of average 67 74 SHOSHONE RIVER BLACKWATER 9780 11.0 18.9 58 10.5 16.1 65 EVENING STAR 9200 13.3 23.1 58 14.6 20.3 72 KIRWIN 9550 5.3 8.5 62 6.0 8.6 70 MARQUETTE 8760 2.6 6.5 40 4.5 7.0 64 SYLVAN LAKE 8420 11.3 17.3 65 12.9 16.8 77 SYLVAN ROAD 7120 6.8 10.5 65 9.6 14.8 65 YOUNTS PEAK 8350 8.2 13.6 60 8.1 12.8 63 ----- ----- Basin wide percent of average 59 69 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.0 4.0 75 5.2 6.1 85 BIG GOOSE 7990 5.2 7.1 73 6.5 6.4 102 BONE SPRINGS DIV 9350 10.2 12.1 84 9.8 10.9 90 BURGESS JUNCTION 7880 5.8 8.4 69 7.3 8.9 82 CLOUD PEAK RESERVOIR 9860 9.8 9.2 107 8.1 9.2 88 DOME LAKE 8880 7.5 8.9 84 8.2 9.7 85 GRAVE SPRINGS 8550 4.5 6.7 67 6.0 7.3 82 HANSEN SAWMILL 8360 4.4 4.8 92 5.5 5.9 93 MIDDLE POWDER 7760 4.6 8.4 55 5.5 9.1 60 POWDER RIVER PASS 9480 8.2 8.1 101 9.2 9.4 98 SUCKER CREEK 8880 7.8 8.4 93 9.1 9.9 92 TIE CREEK 6870 .7 4.6 15 5.6 7.5 75 ----- ----- Basin wide percent of average 79 86 BELLE FOURCHE BLIND PARK 6890 3.7 6.2 60 5.8 8.8 66 COLE CANYON 5910 1.8 4.7 38 4.6 -M * NORTH RAPID CREEK 6130 2.3 6.2 37 4.4 7.1 62 ----- ----- Basin wide percent of average 46 64 UPPER N. PLATTE RIVER COLUMBINE 9160 14.8 20.0 74 16.0 19.4 82 DIVIDE PEAK 8860 17.0 14.5 117 19.5 15.8 123 ELK RIVER 8700 17.3 14.7 118 17.2 14.9 115 JOE WRIGHT 10120 14.3 16.0 89 14.5 18.8 77 NORTH FRENCH CREEK 10130 18.9 21.0 90 18.3 18.8 97 OLD BATTLE 9920 27.7 23.9 116 29.7 26.3 113 SAGE CREEK BASIN 7850 12.3 8.4 146 14.0 9.2 152 SOUTH BRUSH CREEK 8440 8.2 9.0 91 9.8 12.4 79 TOWER 10500 28.3 34.9 81 27.5 29.6 93 WEBBER SPRINGS 9250 19.7 19.2 103 22.6 20.6 110 WILLOW CREEK PASS 9540 11.3 8.8 128 10.4 9.7 107 ----- ----- Basin wide percent of average 100 102 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 13.5 17.6 77 12.9 16.4 79 CASPER MTN. 7850 8.2 10.4 79 9.2 10.3 89 DEADMAN HILL 10220 12.3 12.1 102 10.0 12.3 81 DEER PARK 9700 19.1 13.9 137 20.9 16.6 126 LAPRELE CREEK 8375 5.2 8.3 63 7.4 9.3 80 RENO HILL 8500 6.5 9.6 68 7.3 10.7 68 ROACH 9700 11.8 12.9 91 14.3 13.8 104 SAND LAKE 10050 17.4 23.1 75 15.9 18.1 88 SOUTH PASS 9040 16.7 12.9 129 17.2 14.0 123 WINDY PEAK 7900 4.6 5.5 84 6.5 8.0 81 ----- ----- Basin wide percent of average 91 94 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.5 9.0 117 12.6 11.4 111 DIVIDE PEAK 8860 17.0 14.5 117 19.5 15.8 123 OLD BATTLE 9920 27.7 23.9 116 29.7 26.3 113 SANDSTONE RS 8150 9.8 11.5 85 15.7 14.6 108 WHISKEY PARK 8950 19.7 21.9 90 20.8 22.0 95 ----- ----- Basin wide percent of average 105 109 UPPER GREEN RIVER BIG SANDY OPENING 9080 12.7 11.2 113 12.4 10.5 118 BLIND BULL SUM 8900 15.1 21.3 71 13.0 17.8 73 EAST RIM DIVIDE 7930 6.4 10.1 63 7.5 9.4 80 ELKHART PARK G.S. 9400 8.8 10.2 86 9.9 10.2 97 GROS VENTRE SUMMIT 8750 8.8 10.7 82 8.5 10.1 84 KENDALL R.S. 7740 9.0 11.4 79 9.8 11.5 85 LOOMIS PARK 8240 10.6 13.2 80 11.2 13.7 82 NEW FORK LAKE 8340 7.8 8.9 88 7.4 9.0 82 SNIDER BASIN 8060 11.1 11.5 97 11.7 12.8 91 SPRING CREEK DIVIDE 9000 18.4 20.4 90 17.9 21.0 85 TRIPLE PEAK 8500 14.1 19.3 73 15.4 19.1 81 ----- ----- Basin wide percent of average 83 86 LOWER GREEN RIVER HAMS FORK 7840 9.7 10.0 97 10.6 9.7 109 HEWINTA 9500 7.7 8.2 94 10.2 10.8 94 HICKERSON PARK 9100 7.0 5.3 132 9.5 5.8 164 HOLE-IN-ROCK 9150 5.8 5.1 114 8.5 5.4 157 INDIAN CREEK 9425 21.6 20.4 106 19.0 19.6 97 KELLEY R.S. 8180 13.2 12.7 104 14.9 16.0 93 STEEL CREEK PARK 10100 12.2 11.4 107 12.8 11.9 108 ----- ----- Basin wide percent of average 106 108 UPPER BEAR RIVER BUG LAKE 7950 16.9 15.7 108 19.1 15.0 127 HAYDEN FORK 9100 15.0 11.9 126 20.2 15.9 127 KELLEY R.S. 8180 13.2 12.7 104 14.9 16.0 93 LILY LAKE 9050 12.6 9.9 127 14.9 13.3 112 MONTE CRISTO 8960 23.6 22.3 106 23.9 19.5 123 SALT RIVER SUMMIT 7600 9.5 11.2 85 12.8 14.7 87 TRIAL LAKE 9960 24.4 18.7 130 25.4 18.8 135 ----- ----- Basin wide percent of average 112 116 ----------------------------------------------------------------------------- -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.