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 TUESDAY: MAY 24 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 3.1 0 19.4 26.4 73 COTTONWOOD CREEK 7600 1.7 9.2 18 29.6 34.8 85 GRANITE CREEK 6770 .0 4.1 0 20.4 24.3 84 GRASSY LAKE 7265 2.8 19.9 14 31.6 44.0 72 GROS VENTRE SUMMIT 8750 .5 6.6 8 14.6 17.1 85 LEWIS LAKE DIVIDE 7850 3.1 23.1 13 29.6 44.4 67 PHILLIPS BENCH 8200 14.3 18.8 76 30.3 35.7 85 SALT RIVER SUMMIT 7600 .0 2.3 0 21.6 23.5 92 SNAKE RIVER STATION 6920 .2 2.7 7 18.0 27.7 65 SPRING CREEK DIVIDE 9000 17.3 19.6 88 27.9 32.4 86 THUMB DIVIDE 7980 .2 5.6 4 17.2 24.1 71 TOGWOTEE PASS 9580 15.8 24.5 64 23.1 31.7 73 TWO OCEAN PLATEAU 9240 18.3 27.8 66 24.1 35.2 68 WILLOW CREEK 8450 12.2 19.5 63 39.7 41.3 96 ----- ----- Basin wide percent of average 46 78 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 13.9 22.6 62 19.2 26.1 74 BLACK BEAR 8170 23.1 31.0 75 38.7 49.1 79 CANYON 8090 .0 4.0 0 14.1 19.8 71 FISHER CREEK 9100 23.3 33.2 70 32.7 45.5 72 MADISON PLATEAU 7750 8.7 13.9 63 26.6 33.3 80 NORTHEAST ENTRANCE 7350 .0 1.8 0 11.6 16.9 69 PARKER PEAK 9400 12.6 21.1 60 18.8 22.2 85 SYLVAN LAKE 8420 2.4 15.6 15 23.0 27.9 82 THUMB DIVIDE 7980 .2 5.6 4 17.2 24.1 71 TWO OCEAN PLATEAU 9240 18.3 27.8 66 24.1 35.2 68 WHISKEY CREEK 6800 .0 5.2 0 21.9 26.5 83 WHITE MILL 8700 13.8 21.2 65 21.9 34.2 64 WOLVERINE 7650 .0 1.5 0 11.6 17.5 66 ----- ----- Basin wide percent of average 57 74 WIND RIVER BURROUGHS CREEK 8750 5.3 6.7 79 16.0 21.7 74 COLD SPRINGS 9630 .0 2.1 0 14.7 16.3 90 DEER PARK 9700 19.7 12.3 160 31.9 29.9 107 HOBBS PARK 10100 13.4 13.2 102 21.1 19.9 106 LITTLE WARM 9370 1.7 4.7 36 16.0 19.2 83 SOUTH PASS 9040 11.8 10.0 118 26.8 25.1 107 ST. LAWRENCE ALT 8620 .0 2.1 0 14.9 14.4 103 TOGWOTEE PASS 9580 15.8 24.5 64 23.1 31.7 73 TOWNSEND CREEK 8700 .0 3.6 0 19.6 17.9 109 ----- ----- Basin wide percent of average 85 94 BIGHORN BASIN BALD MTN. 9380 16.5 19.7 84 23.3 24.3 96 BEAR TRAP MEADOW 8200 .0 .3 0* 13.3 13.3 100 BLACKWATER 9780 14.7 26.6 55 21.6 27.8 78 BONE SPRINGS DIV 9350 13.1 12.0 109 23.4 21.3 110 EVENING STAR 9200 13.6 29.4 46 28.4 33.2 86 GRAVE SPRINGS 8550 .0 4.7 0 13.2 15.3 86 KIRWIN 9550 6.8 8.1 84 16.3 16.6 98 MARQUETTE 8760 .0 6.4 0 15.6 16.9 92 MIDDLE POWDER 7760 .0 6.6 0 12.4 18.2 68 OWL CREEK 8975 .0 1.3 0 12.8 10.4 123 POWDER RIVER PASS 9480 .0 5.0 0 18.3 18.6 98 SHELL CREEK 9580 14.1 13.2 107 20.6 19.5 106 SYLVAN LAKE 8420 2.4 15.6 15 23.0 27.9 82 SYLVAN ROAD 7120 .0 1.3 0* 14.5 22.6 64 TIMBER CREEK 7950 .0 1.3 0 12.5 13.4 93 YOUNTS PEAK 8350 2.4 11.0 22 16.9 21.2 80 ----- ----- Basin wide percent of average 51 89 SHOSHONE RIVER BLACKWATER 9780 14.7 26.6 55 21.6 27.8 78 EVENING STAR 9200 13.6 29.4 46 28.4 33.2 86 KIRWIN 9550 6.8 8.1 84 16.3 16.6 98 MARQUETTE 8760 .0 6.4 0 15.6 16.9 92 SYLVAN LAKE 8420 2.4 15.6 15 23.0 27.9 82 SYLVAN ROAD 7120 .0 1.3 0* 14.5 22.6 64 YOUNTS PEAK 8350 2.4 11.0 22 16.9 21.2 80 ----- ----- Basin wide percent of average 41 82 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .3 0* 13.3 13.3 100 BIG GOOSE 7990 1.5 5.7 26 19.0 15.5 123 BONE SPRINGS DIV 9350 13.1 12.0 109 23.4 21.3 110 BURGESS JUNCTION 7880 2.4 6.2 39 17.9 17.7 101 CLOUD PEAK RESERVOIR 9860 14.6 11.0 133 22.3 20.5 109 DOME LAKE 8880 2.4 6.6 36 20.9 19.6 107 GRAVE SPRINGS 8550 .0 4.7 0 13.2 15.3 86 HANSEN SAWMILL 8360 .0 1.1 0 15.5 13.3 117 MIDDLE POWDER 7760 .0 6.6 0 12.4 18.2 68 POWDER RIVER PASS 9480 .0 5.0 0 18.3 18.6 98 SUCKER CREEK 8880 8.4 6.7 125 23.2 20.4 114 TIE CREEK 6870 .0 .6 0 19.2 16.2 119 ----- ----- Basin wide percent of average 64 104 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 14.3 16.9 85 COLE CANYON 5910 .0 1.7 0 13.7 -M * NORTH RAPID CREEK 6130 .0 .3 0* 11.4 13.3 86 ----- ----- Basin wide percent of average 0* 85 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 7.2 0 -M 31.4 * DIVIDE PEAK 8860 3.0 8.0 38 28.9 26.7 108 ELK RIVER 8700 .7 4.3 16 26.5 25.2 105 JOE WRIGHT 10120 17.4 20.2 86 26.4 33.6 79 NORTH FRENCH CREEK 10130 23.0 28.3 81 32.1 33.1 97 OLD BATTLE 9920 33.4 30.3 110 -M 43.1 * SAGE CREEK BASIN 7850 .1 4.6 2 19.4 15.4 126 SOUTH BRUSH CREEK 8440 .0 4.0 0 20.4 22.7 90 TOWER 10500 36.6 46.7 78 47.1 48.7 97 WEBBER SPRINGS 9250 9.1 12.0 76 32.9 33.8 97 WILLOW CREEK PASS 9540 9.7 7.0 139 16.8 18.0 93 ----- ----- Basin wide percent of average 77 97 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 11.3 17.0 66 25.0 30.0 83 CASPER MTN. 7850 .3 7.7 4 17.0 22.8 75 DEADMAN HILL 10220 12.5 14.4 87 18.1 23.7 76 DEER PARK 9700 19.7 12.3 160 31.9 29.9 107 LAPRELE CREEK 8375 .0 2.1 0 14.8 19.2 77 RENO HILL 8500 .0 6.4 0 16.9 23.5 72 ROACH 9700 6.8 9.4 72 23.0 25.4 91 SAND LAKE 10050 22.8 30.4 75 29.9 33.0 91 SOUTH PASS 9040 11.8 10.0 118 26.8 25.1 107 WINDY PEAK 7900 -M .9 * 11.7 16.2 72 ----- ----- Basin wide percent of average 78 86 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .3 33* 20.1 20.3 99 DIVIDE PEAK 8860 3.0 8.0 38 28.9 26.7 108 OLD BATTLE 9920 33.4 30.3 110 -M 43.1 * SANDSTONE RS 8150 .3 1.8 17 24.3 24.1 101 WHISKEY PARK 8950 19.1 19.7 97 31.8 36.8 86 ----- ----- Basin wide percent of average 93 97 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.3 5.0 106 19.8 17.9 111 BLIND BULL SUM 8900 13.6 21.1 64 21.0 27.4 77 EAST RIM DIVIDE 7930 .0 5.1 0 14.0 15.5 90 ELKHART PARK G.S. 9400 6.4 6.2 103 19.9 18.2 109 GROS VENTRE SUMMIT 8750 .5 6.6 8 14.6 17.1 85 KENDALL R.S. 7740 .1 1.7 6 16.3 18.1 90 LOOMIS PARK 8240 .1 5.8 2 20.6 21.8 94 NEW FORK LAKE 8340 .1 1.8 6 16.6 15.3 108 SNIDER BASIN 8060 .0 3.6 0 16.9 19.9 85 SPRING CREEK DIVIDE 9000 17.3 19.6 88 27.9 32.4 86 TRIPLE PEAK 8500 2.1 10.6 20 26.2 31.0 85 ----- ----- Basin wide percent of average 52 91 LOWER GREEN RIVER HAMS FORK 7840 .1 .5 20* 18.5 16.4 113 HEWINTA 9500 .0 2.4 0 16.7 19.7 85 HICKERSON PARK 9100 .0 1.0 0 13.7 12.0 114 HOLE-IN-ROCK 9150 .0 .8 0 13.8 11.6 119 INDIAN CREEK 9425 23.8 18.9 126 31.2 31.7 98 KELLEY R.S. 8180 4.0 5.0 80 24.8 25.5 97 STEEL CREEK PARK 10100 13.8 14.8 93 20.9 22.4 93 ----- ----- Basin wide percent of average 96 100 UPPER BEAR RIVER BUG LAKE 7950 7.4 6.5 114 28.9 24.4 118 HAYDEN FORK 9100 .3 4.2 7 30.4 27.6 110 KELLEY R.S. 8180 4.0 5.0 80 24.8 25.5 97 LILY LAKE 9050 .2 3.7 5 23.0 23.3 99 MONTE CRISTO 8960 20.4 17.3 118 38.1 33.0 115 SALT RIVER SUMMIT 7600 .0 2.3 0 21.6 23.5 92 TRIAL LAKE 9960 24.0 18.6 129 37.7 32.3 117 ----- ----- Basin wide percent of average 98 108 ----------------------------------------------------------------------------- -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.