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 FRIDAY: MARCH 11 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 11.0 16.9 65 12.7 19.6 65 COTTONWOOD CREEK 7600 14.4 20.6 70 16.5 24.5 67 GRANITE CREEK 6770 10.7 17.4 61 13.4 18.3 73 GRASSY LAKE 7265 21.2 31.9 66 21.9 32.7 67 GROS VENTRE SUMMIT 8750 9.0 12.5 72 8.7 11.5 76 LEWIS LAKE DIVIDE 7850 19.2 31.9 60 19.3 33.3 58 PHILLIPS BENCH 8200 19.1 25.8 74 19.1 26.1 73 SALT RIVER SUMMIT 7600 10.2 13.1 78 13.6 16.8 81 SNAKE RIVER STATION 6920 10.3 17.8 58 12.5 20.5 61 SPRING CREEK DIVIDE 9000 19.7 23.8 83 19.0 23.9 79 THUMB DIVIDE 7980 11.2 16.8 67 10.8 17.0 64 TOGWOTEE PASS 9580 13.5 22.1 61 13.6 22.1 62 TWO OCEAN PLATEAU 9240 18.8 24.9 76 15.4 24.9 62 WILLOW CREEK 8450 20.6 27.3 75 23.1 28.8 80 ----- ----- Basin wide percent of average 69 69 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.3 21.3 58 10.9 18.1 60 BLACK BEAR 8170 27.7 35.4 78 26.0 35.8 73 CANYON 8090 7.6 12.3 62 9.1 13.8 66 FISHER CREEK 9100 20.4 31.5 65 20.0 32.6 61 MADISON PLATEAU 7750 15.6 22.5 69 17.1 23.7 72 NORTHEAST ENTRANCE 7350 4.8 10.3 47 6.1 11.4 54 PARKER PEAK 9400 12.6 19.4 65 10.4 14.6 71 SYLVAN LAKE 8420 12.1 20.1 60 13.7 18.9 72 THUMB DIVIDE 7980 11.2 16.8 67 10.8 17.0 64 TWO OCEAN PLATEAU 9240 18.8 24.9 76 15.4 24.9 62 WHISKEY CREEK 6800 10.8 15.5 70 14.1 18.6 76 WHITE MILL 8700 13.5 21.7 62 12.8 24.2 53 WOLVERINE 7650 6.5 11.1 59 6.2 11.7 53 ----- ----- Basin wide percent of average 66 65 WIND RIVER BURROUGHS CREEK 8750 7.9 13.2 60 8.0 14.6 55 COLD SPRINGS 9630 6.3 7.8 81 6.7 9.1 74 DEER PARK 9700 19.6 15.0 131 21.5 19.2 112 HOBBS PARK 10100 12.3 12.8 96 11.2 10.9 103 LITTLE WARM 9370 6.7 10.3 65 7.3 11.7 62 SOUTH PASS 9040 17.2 15.0 115 17.6 16.2 109 ST. LAWRENCE ALT 8620 5.7 6.4 89 6.8 7.6 89 TOGWOTEE PASS 9580 13.5 22.1 61 13.6 22.1 62 TOWNSEND CREEK 8700 8.4 7.4 114 11.4 9.8 116 ----- ----- Basin wide percent of average 89 86 BIGHORN BASIN BALD MTN. 9380 12.4 17.1 73 11.5 15.2 76 BEAR TRAP MEADOW 8200 3.2 4.7 68 5.4 7.0 77 BLACKWATER 9780 11.6 21.8 53 11.0 18.3 60 BONE SPRINGS DIV 9350 11.3 14.1 80 11.2 12.6 89 EVENING STAR 9200 14.0 26.6 53 15.6 23.0 68 GRAVE SPRINGS 8550 4.9 7.9 62 6.6 8.4 79 KIRWIN 9550 5.4 9.8 55 6.2 9.9 63 MARQUETTE 8760 3.1 7.4 42 4.9 8.2 60 MIDDLE POWDER 7760 5.0 9.8 51 5.6 10.5 53 OWL CREEK 8975 3.0 4.5 67 3.2 4.9 65 POWDER RIVER PASS 9480 8.9 9.4 95 9.8 10.8 91 SHELL CREEK 9580 10.9 12.7 86 9.7 11.6 84 SYLVAN LAKE 8420 12.1 20.1 60 13.7 18.9 72 SYLVAN ROAD 7120 7.3 12.0 61 9.9 16.3 61 TIMBER CREEK 7950 1.7 4.7 36 2.4 6.0 40 YOUNTS PEAK 8350 8.6 15.4 56 8.6 14.5 59 ----- ----- Basin wide percent of average 62 69 SHOSHONE RIVER BLACKWATER 9780 11.6 21.8 53 11.0 18.3 60 EVENING STAR 9200 14.0 26.6 53 15.6 23.0 68 KIRWIN 9550 5.4 9.8 55 6.2 9.9 63 MARQUETTE 8760 3.1 7.4 42 4.9 8.2 60 SYLVAN LAKE 8420 12.1 20.1 60 13.7 18.9 72 SYLVAN ROAD 7120 7.3 12.0 61 9.9 16.3 61 YOUNTS PEAK 8350 8.6 15.4 56 8.6 14.5 59 ----- ----- Basin wide percent of average 55 64 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.2 4.7 68 5.4 7.0 77 BIG GOOSE 7990 6.2 8.4 74 7.4 7.3 101 BONE SPRINGS DIV 9350 11.3 14.1 80 11.2 12.6 89 BURGESS JUNCTION 7880 -M 9.7 * -M 10.4 * CLOUD PEAK RESERVOIR 9860 11.4 11.0 104 9.1 10.8 84 DOME LAKE 8880 8.5 10.2 83 9.2 11.2 82 GRAVE SPRINGS 8550 4.9 7.9 62 6.6 8.4 79 HANSEN SAWMILL 8360 4.7 5.6 84 5.9 6.9 86 MIDDLE POWDER 7760 5.0 9.8 51 5.6 10.5 53 POWDER RIVER PASS 9480 8.9 9.4 95 9.8 10.8 91 SUCKER CREEK 8880 9.1 9.8 93 10.4 11.5 90 TIE CREEK 6870 1.1 5.5 20 6.3 8.5 74 ----- ----- Basin wide percent of average 77 82 BELLE FOURCHE BLIND PARK 6890 4.4 8.0 55 6.5 9.9 66 COLE CANYON 5910 2.4 5.5 44 4.7 -M * NORTH RAPID CREEK 6130 3.0 7.3 41 5.3 7.9 67 ----- ----- Basin wide percent of average 47 66 UPPER N. PLATTE RIVER COLUMBINE 9160 16.5 23.3 71 17.6 22.3 79 DIVIDE PEAK 8860 17.4 17.1 102 20.0 18.2 110 ELK RIVER 8700 18.7 17.2 109 18.4 17.3 106 JOE WRIGHT 10120 15.7 18.5 85 16.1 21.7 74 NORTH FRENCH CREEK 10130 20.6 24.7 83 19.8 21.7 91 OLD BATTLE 9920 29.3 28.4 103 31.3 30.5 103 SAGE CREEK BASIN 7850 12.9 9.9 130 14.4 10.6 136 SOUTH BRUSH CREEK 8440 9.1 11.1 82 10.3 14.3 72 TOWER 10500 31.0 40.2 77 30.2 34.1 89 WEBBER SPRINGS 9250 20.6 23.4 88 23.5 23.6 100 WILLOW CREEK PASS 9540 11.5 10.3 112 10.7 11.2 96 ----- ----- Basin wide percent of average 91 94 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 14.6 20.4 72 14.0 19.0 74 CASPER MTN. 7850 8.1 12.2 66 9.4 12.2 77 DEADMAN HILL 10220 13.0 14.0 93 10.7 14.5 74 DEER PARK 9700 19.6 15.0 131 21.5 19.2 112 LAPRELE CREEK 8375 5.6 9.7 58 7.4 10.8 69 RENO HILL 8500 7.2 11.5 63 7.8 12.6 62 ROACH 9700 12.3 14.9 83 14.8 16.1 92 SAND LAKE 10050 18.9 27.7 68 17.3 20.9 83 SOUTH PASS 9040 17.2 15.0 115 17.6 16.2 109 WINDY PEAK 7900 5.2 6.9 75 6.7 9.2 73 ----- ----- Basin wide percent of average 83 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.9 10.8 110 12.5 13.5 93 DIVIDE PEAK 8860 17.4 17.1 102 20.0 18.2 110 OLD BATTLE 9920 29.3 28.4 103 31.3 30.5 103 SANDSTONE RS 8150 10.3 13.7 75 16.5 16.7 99 WHISKEY PARK 8950 22.8 26.3 87 22.2 25.1 88 ----- ----- Basin wide percent of average 95 99 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.5 13.0 104 13.1 12.0 109 BLIND BULL SUM 8900 -M 25.0 * 14.0 20.2 69 EAST RIM DIVIDE 7930 6.8 11.8 58 7.8 10.8 72 ELKHART PARK G.S. 9400 9.6 12.0 80 10.8 11.7 92 GROS VENTRE SUMMIT 8750 9.0 12.5 72 8.7 11.5 76 KENDALL R.S. 7740 8.7 13.5 64 10.3 13.2 78 LOOMIS PARK 8240 11.6 15.7 74 11.8 15.7 75 NEW FORK LAKE 8340 8.4 10.2 82 7.9 10.2 77 SNIDER BASIN 8060 11.8 13.3 89 12.1 14.5 83 SPRING CREEK DIVIDE 9000 19.7 23.8 83 19.0 23.9 79 TRIPLE PEAK 8500 14.9 22.5 66 16.4 22.1 74 ----- ----- Basin wide percent of average 77 80 LOWER GREEN RIVER HAMS FORK 7840 10.4 11.9 87 11.0 11.0 100 HEWINTA 9500 8.6 10.0 86 10.2 12.6 81 HICKERSON PARK 9100 6.9 6.3 110 9.6 6.8 141 HOLE-IN-ROCK 9150 6.0 6.2 97 8.7 6.3 138 INDIAN CREEK 9425 22.9 24.3 94 20.0 22.6 88 KELLEY R.S. 8180 14.1 15.1 93 15.8 18.3 86 STEEL CREEK PARK 10100 12.6 13.8 91 13.2 14.0 94 ----- ----- Basin wide percent of average 93 97 UPPER BEAR RIVER BUG LAKE 7950 18.3 18.5 99 19.8 17.3 114 HAYDEN FORK 9100 16.1 14.4 112 20.7 18.4 112 KELLEY R.S. 8180 14.1 15.1 93 15.8 18.3 86 LILY LAKE 9050 14.0 11.6 121 15.3 15.4 99 MONTE CRISTO 8960 25.1 26.8 94 25.0 22.6 111 SALT RIVER SUMMIT 7600 10.2 13.1 78 13.6 16.8 81 TRIAL LAKE 9960 25.9 22.3 116 26.8 22.0 122 ----- ----- Basin wide percent of average 102 105 ----------------------------------------------------------------------------- -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.