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 15 , 2009 ----------------------------------------------------------------------------- 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 28.4 28.1 101 COTTONWOOD CREEK 7670 .0 .0 100 44.0 36.9 119 GRAND TARGHEE 9260 34.9 -M * 48.1 -M * GRANITE CREEK 6770 .2 .0 29.5 25.9 114 GRASSY LAKE 7265 .0 1.9 0 46.7 46.6 100 GROS VENTRE SUMMIT 8750 .1 .0 22.8 18.7 122 GUNSIGHT PASS 9820 3.4 -M * 25.1 -M * LEWIS LAKE DIVIDE 7850 .5 7.1 7 45.5 46.7 97 PHILLIPS BENCH 8200 .0 5.4 0 40.5 37.9 107 SALT RIVER SUMMIT 7760 .0 .0 100 25.2 24.8 102 SNAKE RIVER STATION 6920 .0 .0 100 32.0 29.5 108 SPRING CREEK DIVIDE 9000 4.9 5.5 89 37.3 34.0 110 THUMB DIVIDE 7980 .1 .0 30.7 25.8 119 TOGWOTEE PASS 9580 18.7 14.7 127 41.7 33.9 123 TWO OCEAN PLATEAU 9240 29.1 17.9 163 42.1 37.7 112 WILLOW CREEK 8380 .0 4.1 0 55.1 43.9 126 ----- ----- Basin wide percent of average 94 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 16.5 12.1 136 30.7 28.3 108 BLACK BEAR 8170 13.6 14.9 91 48.6 51.9 94 CANYON 7870 .0 .1 0 22.6 21.6 105 FISHER CREEK 9100 21.3 21.4 100 48.3 48.5 100 MADISON PLATEAU 7750 .0 1.4 0 34.5 35.6 97 NORTHEAST ENTRANCE 7350 .0 .0 100 20.6 18.8 110 PARKER PEAK 9400 5.9 11.0 54 27.6 24.6 112 SYLVAN LAKE 8420 .1 5.0 2 34.3 30.6 112 THUMB DIVIDE 7980 .1 .0 30.7 25.8 119 TWO OCEAN PLATEAU 9240 29.1 17.9 163 42.1 37.7 112 WHISKEY CREEK 6800 .2 .0 28.8 28.6 101 WHITE MILL 8700 10.1 10.7 94 34.5 36.8 94 WOLVERINE 7650 .0 .0 100 20.1 19.4 104 ----- ----- Basin wide percent of average 102 104 WIND RIVER BURROUGHS CREEK 8750 .0 .6 0 28.1 23.7 119 COLD SPRINGS 9630 .0 .3 0 19.3 18.3 105 DEER PARK 9700 .8 4.7 17 30.3 32.3 94 HOBBS PARK 10100 .0 4.8 0 25.5 22.3 114 LITTLE WARM 9370 .0 .2 0 24.1 21.1 114 SOUTH PASS 9040 .2 2.7 7 25.9 27.1 96 ST. LAWRENCE ALT 8620 .1 .0 18.1 16.5 110 TOGWOTEE PASS 9580 18.7 14.7 127 41.7 33.9 123 TOWNSEND CREEK 8700 .0 .6 0 22.2 20.0 111 ----- ----- Basin wide percent of average 69 109 BIGHORN BASIN BALD MTN. 9380 6.4 8.6 74 23.8 26.8 89 BEAR TRAP MEADOW 8200 .0 .0 100 15.9 15.6 102 BLACKWATER 9780 20.9 17.3 121 35.2 30.6 115 BONE SPRINGS DIV 9350 .0 3.1 0 23.2 24.0 97 EVENING STAR 9200 14.5 17.3 84 43.6 36.1 121 GRAVE SPRINGS 8550 .0 .5 0 14.3 17.3 83 KIRWIN 9550 .0 1.6 0 24.8 19.0 131 MARQUETTE 8760 .0 1.5 0 16.3 19.7 83 MIDDLE POWDER 7760 .0 .2 0 15.9 20.4 78 OWL CREEK 8975 .0 .0 100 14.8 12.4 119 POWDER RIVER PASS 9480 .0 .3 0 23.6 21.1 112 SHELL CREEK 9580 5.2 3.8 137 24.6 22.2 111 SYLVAN LAKE 8420 .1 5.0 2 34.3 30.6 112 SYLVAN ROAD 7120 .1 .0 28.9 24.5 118 TIMBER CREEK 7950 .2 .0 16.0 15.7 102 YOUNTS PEAK 8350 .0 1.3 0 24.7 23.3 106 ----- ----- Basin wide percent of average 78 106 SHOSHONE RIVER BLACKWATER 9780 20.9 17.3 121 35.2 30.6 115 EVENING STAR 9200 14.5 17.3 84 43.6 36.1 121 KIRWIN 9550 .0 1.6 0 24.8 19.0 131 MARQUETTE 8760 .0 1.5 0 16.3 19.7 83 SYLVAN LAKE 8420 .1 5.0 2 34.3 30.6 112 SYLVAN ROAD 7120 .1 .0 28.9 24.5 118 YOUNTS PEAK 8350 .0 1.3 0 24.7 23.3 106 ----- ----- Basin wide percent of average 81 113 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 15.9 15.6 102 BIG GOOSE 7990 .0 .0 100 19.2 17.3 111 BONE SPRINGS DIV 9350 .0 3.1 0 23.2 24.0 97 BURGESS JUNCTION 7880 .0 .2 0 19.1 19.9 96 CLOUD PEAK RESERVOIR 9860 1.5 2.6 58 25.8 23.4 110 DOME LAKE 8880 .0 1.0 0 23.6 22.0 107 GRAVE SPRINGS 8550 .0 .5 0 14.3 17.3 83 HANSEN SAWMILL 8360 .0 .0 100 16.4 15.7 104 MIDDLE POWDER 7760 .0 .2 0 15.9 20.4 78 POWDER RIVER PASS 9480 .0 .3 0 23.6 21.1 112 SUCKER CREEK 8880 .0 .8 0 25.6 23.0 111 TIE CREEK 6870 .0 .0 100 21.8 18.7 117 ----- ----- Basin wide percent of average 17 103 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 22.0 19.5 113 COLE CANYON 5910 .0 .0 100 19.4 14.7 132 NORTH RAPID CREEK 6130 .0 .0 100 18.1 15.9 114 ----- ----- Basin wide percent of average * 119 UPPER N. PLATTE RIVER COLUMBINE 9160 -M .0 * -M 33.0 * DIVIDE PEAK 8880 .0 .4 0 37.5 28.3 133 ELK RIVER 8700 .1 .0 30.1 26.8 112 JOE WRIGHT 10120 -M 8.1 * -M 36.2 * NORTH FRENCH CREEK 10130 -M 13.4 * -M 35.5 * OLD BATTLE 10000 19.2 14.4 133 52.1 45.3 115 SAGE CREEK BASIN 7850 .0 .2 0 22.6 16.4 138 SOUTH BRUSH CREEK 8440 .0 .2 0 25.4 24.6 103 TOWER 10500 18.4 28.0 66 55.0 51.3 107 WEBBER SPRINGS 9250 .0 1.5 0 39.8 35.6 112 WILLOW CREEK PASS 9540 .0 .5 0 20.1 20.0 101 ----- ----- Basin wide percent of average 83 114 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 4.3 2 31.8 32.2 99 CASPER MTN. 7900 .0 1.3 0 23.2 25.3 92 DEADMAN HILL 10220 .0 4.3 0 25.8 25.6 101 DEER PARK 9700 .8 4.7 17 30.3 32.3 94 LAPRELE CREEK 8375 .0 .0 100 20.5 21.2 97 RENO HILL 8400 .0 1.0 0 25.8 25.8 100 ROACH 9700 .2 1.7 12 28.3 27.5 103 SAND LAKE 10050 16.5 14.1 117 42.3 35.6 119 SOUTH PASS 9040 .2 2.7 7 25.9 27.1 96 WINDY PEAK 7900 -M .0 * 18.6 18.2 102 ----- ----- Basin wide percent of average 52 101 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 26.4 21.6 122 DIVIDE PEAK 8880 .0 .4 0 37.5 28.3 133 OLD BATTLE 10000 19.2 14.4 133 52.1 45.3 115 SANDSTONE RS 8150 -M .0 * 29.1 25.6 114 WHISKEY PARK 8950 .0 3.9 0 45.3 38.9 116 ----- ----- Basin wide percent of average 103 119 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 22.9 19.5 117 BLIND BULL SUM 8650 7.6 9.8 78 30.0 29.0 103 EAST RIM DIVIDE 7930 .0 .0 100 19.4 16.9 115 ELKHART PARK G.S. 9400 -M .0 * 23.9 20.1 119 GROS VENTRE SUMMIT 8750 .1 .0 22.8 18.7 122 GUNSIGHT PASS 9820 3.4 -M * 25.1 -M * KENDALL R.S. 7740 .1 .0 20.9 19.4 108 LOOMIS PARK 8240 .1 .0 28.0 23.3 120 NEW FORK LAKE 8340 1.5 .0 18.4 16.8 110 SNIDER BASIN 8060 .0 .0 100 21.4 21.1 101 SPRING CREEK DIVIDE 9000 4.9 5.5 89 37.3 34.0 110 TRIPLE PEAK 8500 .1 .0 37.9 32.9 115 ----- ----- Basin wide percent of average 82* 112 LOWER GREEN RIVER HAMS FORK 7840 .3 .0 20.7 17.8 116 HEWINTA 9519 .0 .0 100 19.2 21.1 91 HICKERSON PARK 9145 .0 .0 100 16.5 13.4 123 HOLE-IN-ROCK 9150 .0 .0 100 14.6 13.1 111 INDIAN CREEK 9425 .7 6.2 11 31.5 33.4 94 KELLEY R.S. 8180 .0 .0 100 27.3 27.0 101 STEEL CREEK PARK 10200 .0 5.3 0 23.5 24.1 98 ----- ----- Basin wide percent of average 6 102 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100 25.3 26.0 97 HAYDEN FORK 9212 .0 .0 100 30.0 29.5 102 KELLEY R.S. 8180 .0 .0 100 27.3 27.0 101 LILY LAKE 9156 .0 .0 100 24.3 25.1 97 MONTE CRISTO 8960 .0 4.3 0 36.8 35.1 105 SALT RIVER SUMMIT 7760 .0 .0 100 25.2 24.8 102 TRIAL LAKE 9992 .2 6.9 3 33.6 34.5 97 ----- ----- Basin wide percent of average 2 100 ----------------------------------------------------------------------------- -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 1961-90. 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.