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 MONDAY: JUNE 21 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 100* 22.2 28.5 78 COTTONWOOD CREEK 7670 -M .0 * 34.5 37.3 92 GRAND TARGHEE 9260 34.5 -M * 44.5 -M * GRANITE CREEK 6770 .0 .0 100* 19.4 26.2 74 GRASSY LAKE 7265 .1 .0 * 43.0 47.2 91 GROS VENTRE SUMMIT 8750 .0 .0 100* 16.0 19.1 84 GUNSIGHT PASS 9820 .6 -M * 19.3 -M * LEWIS LAKE DIVIDE 7850 .1 1.8 6* 37.4 47.3 79 PHILLIPS BENCH 8200 .0 1.4 0* 31.2 38.3 81 SALT RIVER SUMMIT 7760 .0 .0 100* 20.2 25.1 80 SNAKE RIVER STATION 6920 .0 .0 100* 27.8 30.0 93 SPRING CREEK DIVIDE 9000 .3 .8 38* 29.3 34.3 85 THUMB DIVIDE 7980 .1 .0 * 23.6 26.2 90 TOGWOTEE PASS 9580 12.7 10.8 118 -M 34.3 * TWO OCEAN PLATEAU 9240 12.0 14.0 86 31.5 38.3 82 WILLOW CREEK 8380 .1 .0 * 45.2 44.5 102 ----- ----- Basin wide percent of average 88* 86 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 6.5 8.1 80 23.3 28.9 81 BLACK BEAR 8170 4.9 9.7 51 42.1 52.6 80 CANYON 7870 .0 .1 0* 19.9 22.0 90 FISHER CREEK 9100 15.2 16.5 92 41.4 49.3 84 MADISON PLATEAU 7750 .0 .2 0* 32.8 36.1 91 NORTHEAST ENTRANCE 7350 .0 .0 100* 18.5 19.3 96 PARKER PEAK 9400 4.4 7.3 60 24.3 25.2 96 SYLVAN LAKE 8420 .0 2.3 0* 33.7 31.3 108 THUMB DIVIDE 7980 .1 .0 * 23.6 26.2 90 TWO OCEAN PLATEAU 9240 12.0 14.0 86 31.5 38.3 82 WHISKEY CREEK 6800 .0 .0 100* 23.3 29.2 80 WHITE MILL 8700 4.2 7.2 58 30.6 37.4 82 WOLVERINE 7650 .0 .0 100* 13.3 19.8 67 ----- ----- Basin wide percent of average 72* 86 WIND RIVER BURROUGHS CREEK 8750 .0 .1 0* 17.9 24.1 74 COLD SPRINGS 9630 .0 .0 100* 21.9 18.8 116 DEER PARK 9700 .0 2.3 0 32.8 32.8 100 HOBBS PARK 10100 7.7 3.1 248 32.9 22.7 145 LITTLE WARM 9370 .0 .0 100* 19.4 21.5 90 SOUTH PASS 9040 .0 1.1 0* 30.2 27.5 110 ST. LAWRENCE ALT 8620 .0 .0 100* 23.5 16.9 139 TOGWOTEE PASS 9580 12.7 10.8 118 -M 34.3 * TOWNSEND CREEK 8700 .0 .0 100* 28.8 20.4 141 ----- ----- Basin wide percent of average 117* 112 BIGHORN BASIN BALD MTN. 9380 7.4 5.3 140 23.1 27.4 84 BEAR TRAP MEADOW 8200 .0 .0 100* 17.2 16.2 106 BLACKWATER 9780 12.7 13.9 91 29.4 31.3 94 BONE SPRINGS DIV 9350 .0 1.2 0* 21.4 24.6 87 EVENING STAR 9200 3.4 12.9 26 35.6 36.8 97 GRAVE SPRINGS 8550 .0 .0 100* 20.8 17.9 116 KIRWIN 9550 .0 .4 0* 20.8 19.6 106 MARQUETTE 8760 .0 .5 0* 22.1 20.3 109 MIDDLE POWDER 7760 .0 .0 100* 17.8 21.0 85 OWL CREEK 8975 .0 .0 100* 14.9 12.9 116 POWDER RIVER PASS 9480 .0 .0 100* 21.7 21.7 100 SHELL CREEK 9580 .0 2.1 0 22.0 22.9 96 SYLVAN LAKE 8420 .0 2.3 0* 33.7 31.3 108 SYLVAN ROAD 7120 .0 .0 100* 24.2 25.0 97 TIMBER CREEK 7950 .0 .0 100* 19.2 16.1 119 YOUNTS PEAK 8350 .0 .2 0* 19.3 23.8 81 ----- ----- Basin wide percent of average 61* 98 SHOSHONE RIVER BLACKWATER 9780 12.7 13.9 91 29.4 31.3 94 EVENING STAR 9200 3.4 12.9 26 35.6 36.8 97 KIRWIN 9550 .0 .4 0* 20.8 19.6 106 MARQUETTE 8760 .0 .5 0* 22.1 20.3 109 SYLVAN LAKE 8420 .0 2.3 0* 33.7 31.3 108 SYLVAN ROAD 7120 .0 .0 100* 24.2 25.0 97 YOUNTS PEAK 8350 .0 .2 0* 19.3 23.8 81 ----- ----- Basin wide percent of average 53* 98 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100* 17.2 16.2 106 BIG GOOSE 7990 .0 .0 100* 21.9 17.6 124 BONE SPRINGS DIV 9350 .0 1.2 0* 21.4 24.6 87 BURGESS JUNCTION 7880 .0 .0 100* 20.5 20.4 100 CLOUD PEAK RESERVOIR 9860 .0 1.3 0* 24.8 24.0 103 DOME LAKE 8880 .0 .1 0* 24.6 22.5 109 GRAVE SPRINGS 8550 .0 .0 100* 20.8 17.9 116 HANSEN SAWMILL 8360 .0 .0 100* 18.2 16.3 112 MIDDLE POWDER 7760 .0 .0 100* 17.8 21.0 85 POWDER RIVER PASS 9480 .0 .0 100* 21.7 21.7 100 SUCKER CREEK 8880 .0 .1 0* 25.9 23.7 109 TIE CREEK 6870 .0 .0 100* 22.5 19.4 116 ----- ----- Basin wide percent of average 0* 105 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 24.2 20.1 120 COLE CANYON 5910 .0 .0 100* 22.4 15.4 145 NORTH RAPID CREEK 6130 .0 .0 100* 22.4 16.7 134 ----- ----- Basin wide percent of average * 132 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* 32.4 33.3 97 DIVIDE PEAK 8880 .0 .0 100* 35.2 28.6 123 ELK RIVER 8700 .0 .0 100* 29.1 27.2 107 JOE WRIGHT 10120 -M 4.7 * -M 36.6 * NORTH FRENCH CREEK 10130 17.6 8.9 198 49.2 36.0 137 OLD BATTLE 10000 16.3 8.8 185 51.8 45.7 113 SAGE CREEK BASIN 7850 .0 .0 100* 20.7 16.6 125 SOUTH BRUSH CREEK 8440 .0 .0 100* 30.4 25.0 122 TOWER 10500 -M 20.5 * -M 51.7 * WEBBER SPRINGS 9250 .0 .5 0* 40.4 35.9 113 WILLOW CREEK PASS 9540 .8 .1 800* 22.3 20.4 109 ----- ----- Basin wide percent of average 190* 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 2.4 4* 34.0 32.6 104 CASPER MTN. 7900 .0 .6 0* 25.6 25.7 100 DEADMAN HILL 10220 6.0 2.2 273 29.0 26.0 112 DEER PARK 9700 .0 2.3 0 32.8 32.8 100 LAPRELE CREEK 8375 .0 .0 100* 23.4 21.6 108 RENO HILL 8400 .0 .2 0* 30.9 26.2 118 ROACH 9700 .0 .7 0* 32.4 27.9 116 SAND LAKE 10050 20.0 9.2 217 45.3 36.0 126 SOUTH PASS 9040 .0 1.1 0* 30.2 27.5 110 WINDY PEAK 7900 .1 .0 * 24.9 18.6 134 ----- ----- Basin wide percent of average 140* 112 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 22.6 21.9 103 DIVIDE PEAK 8880 .0 .0 100* 35.2 28.6 123 OLD BATTLE 10000 16.3 8.8 185 51.8 45.7 113 SANDSTONE RS 8150 -M .0 * 26.0 25.9 100 WHISKEY PARK 8950 .1 1.6 6* 43.5 39.3 111 ----- ----- Basin wide percent of average 158* 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* 16.8 19.9 84 BLIND BULL SUM 8650 .4 5.7 7 -M 29.4 * EAST RIM DIVIDE 7930 .1 .0 * 12.1 17.2 70 ELKHART PARK G.S. 9400 .0 .0 100* 15.2 20.5 74 GROS VENTRE SUMMIT 8750 .0 .0 100* 16.0 19.1 84 GUNSIGHT PASS 9820 .6 -M * 19.3 -M * KENDALL R.S. 7740 .1 .0 * 13.9 19.7 71 LOOMIS PARK 8240 .1 .0 * 16.2 23.6 69 NEW FORK LAKE 8340 .0 .0 100* 12.2 17.2 71 POCKET CREEK 9360 -M -M * 17.2 -M * SNIDER BASIN 8060 .0 .0 100* 18.8 21.3 88 SPRING CREEK DIVIDE 9000 .3 .8 38* 29.3 34.3 85 TRIPLE PEAK 8500 .1 .0 * 33.4 33.3 100 ----- ----- Basin wide percent of average 17* 81 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * 17.9 18.1 99 HEWINTA 9519 .0 .0 100* 20.2 21.4 94 HICKERSON PARK 9145 .0 .0 100* 17.8 13.6 131 HOLE-IN-ROCK 9150 .0 .0 100* 17.4 13.4 130 INDIAN CREEK 9425 .8 2.1 38* 28.4 33.7 84 KELLEY R.S. 8180 .0 .0 100* 21.6 27.4 79 STEEL CREEK PARK 10200 .4 2.8 14 24.9 24.5 102 ----- ----- Basin wide percent of average 29* 97 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* 24.2 26.2 92 HAYDEN FORK 9212 .0 .0 100* 28.1 29.8 94 KELLEY R.S. 8180 .0 .0 100* 21.6 27.4 79 LILY LAKE 9156 .0 .0 100* 23.9 25.4 94 MONTE CRISTO 8960 .2 1.7 12* 30.5 35.4 86 SALT RIVER SUMMIT 7760 .0 .0 100* 20.2 25.1 80 TRIAL LAKE 9992 .0 4.0 0 26.9 34.9 77 ----- ----- Basin wide percent of average 4* 86 ----------------------------------------------------------------------------- -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.