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: JUNE 20 , 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 28.7 28.4 101 COTTONWOOD CREEK 7670 .0 .0 100 45.2 37.2 122 GRAND TARGHEE 9260 29.9 -M * 49.2 -M * GRANITE CREEK 6770 .1 .0 30.0 26.2 115 GRASSY LAKE 7265 .0 .0 100 47.6 47.1 101 GROS VENTRE SUMMIT 8750 .0 .0 100 22.9 19.0 121 GUNSIGHT PASS 9820 2.2 -M * 25.8 -M * LEWIS LAKE DIVIDE 7850 .3 2.7 11 46.2 47.2 98 PHILLIPS BENCH 8200 .0 2.0 0 40.8 38.2 107 SALT RIVER SUMMIT 7760 .0 .0 100 26.4 25.1 105 SNAKE RIVER STATION 6920 .0 .0 100 32.5 29.9 109 SPRING CREEK DIVIDE 9000 .1 1.6 6 38.0 34.2 111 THUMB DIVIDE 7980 .1 .0 31.1 26.1 119 TOGWOTEE PASS 9580 15.2 11.4 133 42.4 34.2 124 TWO OCEAN PLATEAU 9240 24.1 14.7 164 43.0 38.2 113 WILLOW CREEK 8380 .0 .0 100 57.0 44.4 128 ----- ----- Basin wide percent of average 123 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 12.1 8.8 137 31.1 28.8 108 BLACK BEAR 8170 7.2 10.5 69 49.4 52.5 94 CANYON 7870 .0 .1 0 24.9 21.9 114 FISHER CREEK 9100 -M 17.6 * 49.0 49.1 100 MADISON PLATEAU 7750 .0 .3 0 35.1 36.0 98 NORTHEAST ENTRANCE 7350 .1 .0 21.2 19.2 110 PARKER PEAK 9400 .3 8.0 4 28.4 25.1 113 SYLVAN LAKE 8420 .1 2.8 4 34.8 31.1 112 THUMB DIVIDE 7980 .1 .0 31.1 26.1 119 TWO OCEAN PLATEAU 9240 24.1 14.7 164 43.0 38.2 113 WHISKEY CREEK 6800 .1 .0 29.2 29.1 100 WHITE MILL 8700 3.9 7.8 50 35.1 37.3 94 WOLVERINE 7650 .0 .0 100 20.4 19.7 104 ----- ----- Basin wide percent of average 90 104 WIND RIVER BURROUGHS CREEK 8750 .0 .2 0 28.3 24.1 117 COLD SPRINGS 9630 .0 .0 100 19.4 18.7 104 DEER PARK 9700 .0 3.1 0 30.4 32.7 93 HOBBS PARK 10100 .0 3.5 0 25.6 22.6 113 LITTLE WARM 9370 .0 .0 100 24.9 21.5 116 SOUTH PASS 9040 .2 1.5 13 26.1 27.4 95 ST. LAWRENCE ALT 8620 .1 .0 18.3 16.8 109 TOGWOTEE PASS 9580 15.2 11.4 133 42.4 34.2 124 TOWNSEND CREEK 8700 .0 .1 0 22.1 20.3 109 ----- ----- Basin wide percent of average 78 109 BIGHORN BASIN BALD MTN. 9380 1.8 5.8 31 25.0 27.3 92 BEAR TRAP MEADOW 8200 .0 .0 100 16.4 16.1 102 BLACKWATER 9780 16.7 14.6 114 35.8 31.2 115 BONE SPRINGS DIV 9350 .0 1.5 0 24.0 24.5 98 EVENING STAR 9200 9.7 13.8 70 45.2 36.7 123 GRAVE SPRINGS 8550 .0 .0 100 14.9 17.8 84 KIRWIN 9550 .0 .6 0 24.7 19.5 127 MARQUETTE 8760 .0 .6 0 16.9 20.2 84 MIDDLE POWDER 7760 .0 .0 100 17.1 20.9 82 OWL CREEK 8975 .0 .0 100 15.8 12.8 123 POWDER RIVER PASS 9480 .0 .0 100 24.4 21.6 113 SHELL CREEK 9580 1.0 2.4 42 25.6 22.7 113 SYLVAN LAKE 8420 .1 2.8 4 34.8 31.1 112 SYLVAN ROAD 7120 .1 .0 29.3 24.9 118 TIMBER CREEK 7950 .1 .0 16.6 16.0 104 YOUNTS PEAK 8350 .0 .2 0 25.0 23.7 105 ----- ----- Basin wide percent of average 69 107 SHOSHONE RIVER BLACKWATER 9780 16.7 14.6 114 35.8 31.2 115 EVENING STAR 9200 9.7 13.8 70 45.2 36.7 123 KIRWIN 9550 .0 .6 0 24.7 19.5 127 MARQUETTE 8760 .0 .6 0 16.9 20.2 84 SYLVAN LAKE 8420 .1 2.8 4 34.8 31.1 112 SYLVAN ROAD 7120 .1 .0 29.3 24.9 118 YOUNTS PEAK 8350 .0 .2 0 25.0 23.7 105 ----- ----- Basin wide percent of average 81 113 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 16.4 16.1 102 BIG GOOSE 7990 .0 .0 100 19.7 17.6 112 BONE SPRINGS DIV 9350 .0 1.5 0 24.0 24.5 98 BURGESS JUNCTION 7880 .0 .0 100 19.8 20.3 98 CLOUD PEAK RESERVOIR 9860 .0 1.6 0 26.3 23.9 110 DOME LAKE 8880 .0 .2 0 24.1 22.4 108 GRAVE SPRINGS 8550 .0 .0 100 14.9 17.8 84 HANSEN SAWMILL 8360 .0 .0 100 16.8 16.2 104 MIDDLE POWDER 7760 .0 .0 100 17.1 20.9 82 POWDER RIVER PASS 9480 .0 .0 100 24.4 21.6 113 SUCKER CREEK 8880 .0 .1 0 26.5 23.6 112 TIE CREEK 6870 .0 .0 100 22.9 19.3 119 ----- ----- Basin wide percent of average 0 104 BELLE FOURCHE BLIND PARK 6890 .1 .0 22.2 20.0 111 COLE CANYON 5910 .0 .0 100 19.4 15.2 128 NORTH RAPID CREEK 6130 .1 .0 18.5 16.5 112 ----- ----- Basin wide percent of average * 116 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .0 36.1 33.2 109 DIVIDE PEAK 8880 .0 .0 100 37.7 28.6 132 ELK RIVER 8700 -M .0 * 30.7 27.1 113 JOE WRIGHT 10120 .1 5.2 2 39.5 36.5 108 NORTH FRENCH CREEK 10130 -M 9.6 * -M 35.9 * OLD BATTLE 10000 12.8 9.7 132 52.5 45.6 115 SAGE CREEK BASIN 7850 .0 .0 100 22.7 16.6 137 SOUTH BRUSH CREEK 8440 .0 .0 100 25.6 25.0 102 TOWER 10500 13.2 21.7 61 55.8 51.6 108 WEBBER SPRINGS 9250 .0 .7 0 40.1 35.9 112 WILLOW CREEK PASS 9540 .0 .1 0 20.6 20.4 101 ----- ----- Basin wide percent of average 70 113 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 2.6 0 32.2 32.5 99 CASPER MTN. 7900 .0 .7 0 23.9 25.6 93 DEADMAN HILL 10220 -M 2.4 * 25.7 25.9 99 DEER PARK 9700 .0 3.1 0 30.4 32.7 93 LAPRELE CREEK 8375 .0 .0 100 20.7 21.5 96 RENO HILL 8400 .0 .4 0 26.0 26.1 100 ROACH 9700 .1 .9 11 28.6 27.8 103 SAND LAKE 10050 10.0 9.9 101 42.7 36.0 119 SOUTH PASS 9040 .2 1.5 13 26.1 27.4 95 WINDY PEAK 7900 -M .0 * 18.7 18.5 101 ----- ----- Basin wide percent of average 54 100 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 27.0 21.8 124 DIVIDE PEAK 8880 .0 .0 100 37.7 28.6 132 OLD BATTLE 10000 12.8 9.7 132 52.5 45.6 115 SANDSTONE RS 8150 -M .0 * 29.6 25.9 114 WHISKEY PARK 8950 -M 1.9 * 45.7 39.3 116 ----- ----- Basin wide percent of average 132 119 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 24.1 19.9 121 BLIND BULL SUM 8650 3.3 6.4 52 30.4 29.3 104 EAST RIM DIVIDE 7930 .0 .0 100 19.8 17.1 116 ELKHART PARK G.S. 9400 .0 .0 100 24.9 20.4 122 GROS VENTRE SUMMIT 8750 .0 .0 100 22.9 19.0 121 GUNSIGHT PASS 9820 2.2 -M * 25.8 -M * KENDALL R.S. 7740 .0 .0 100 21.7 19.7 110 LOOMIS PARK 8240 .1 .0 28.5 23.5 121 NEW FORK LAKE 8340 1.7 .0 19.6 17.1 115 SNIDER BASIN 8060 .0 .0 100 21.6 21.3 101 SPRING CREEK DIVIDE 9000 .1 1.6 6 38.0 34.2 111 TRIPLE PEAK 8500 .1 .0 38.4 33.3 115 ----- ----- Basin wide percent of average 42 114 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 21.3 18.0 118 HEWINTA 9519 .0 .0 100 19.8 21.4 93 HICKERSON PARK 9145 .0 .0 100 17.1 13.6 126 HOLE-IN-ROCK 9150 .0 .0 100 15.2 13.3 114 INDIAN CREEK 9425 .0 2.8 0 32.2 33.7 96 KELLEY R.S. 8180 .0 .0 100 28.3 27.3 104 STEEL CREEK PARK 10200 .0 3.2 0 24.2 24.4 99 ----- ----- Basin wide percent of average 0 104 UPPER BEAR RIVER BUG LAKE 7950 .1 .0 25.6 26.2 98 HAYDEN FORK 9212 .0 .0 100 31.1 29.8 104 KELLEY R.S. 8180 .0 .0 100 28.3 27.3 104 LILY LAKE 9156 .0 .0 100 25.6 25.3 101 MONTE CRISTO 8960 .0 2.0 0 37.6 35.3 107 SALT RIVER SUMMIT 7760 .0 .0 100 26.4 25.1 105 TRIAL LAKE 9992 .2 4.4 5 34.8 34.8 100 ----- ----- Basin wide percent of average 3 103 ----------------------------------------------------------------------------- -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.