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 THURSDAY: AUGUST 14 , 2008 ----------------------------------------------------------------------------- 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 35.2 30.9 114 COTTONWOOD CREEK 7670 .0 .0 100 -M 39.8 * GRAND TARGHEE 9260 .0 -M * 49.7 -M * GRANITE CREEK 6770 .0 .0 100 32.4 28.5 114 GRASSY LAKE 7265 .0 .0 100 57.7 50.3 115 GROS VENTRE SUMMIT 8750 .1 .0 20.4 22.1 92 GUNSIGHT PASS 9820 .1 -M * 21.7 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 49.2 50.3 98 PHILLIPS BENCH 8200 .0 .0 100 46.0 40.9 112 SALT RIVER SUMMIT 7760 -M .0 * -M 27.1 * SNAKE RIVER STATION 6920 .0 .0 100 37.3 32.8 114 SPRING CREEK DIVIDE 9000 -M .0 * 32.8 36.6 90 THUMB DIVIDE 7980 .0 .0 100 30.1 28.4 106 TOGWOTEE PASS 9580 .0 .0 100 41.8 37.6 111 TWO OCEAN PLATEAU 9240 .1 .0 45.2 41.9 108 WILLOW CREEK 8380 .0 .0 100 54.6 47.9 114 ----- ----- Basin wide percent of average * 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100 35.0 32.6 107 BLACK BEAR 8170 .0 .0 100 58.1 56.2 103 CANYON 7870 .0 .0 100 29.2 25.0 117 FISHER CREEK 9100 .0 .0 100 54.0 54.2 100 MADISON PLATEAU 7750 .0 .0 100 45.1 39.1 115 NORTHEAST ENTRANCE 7350 .0 .0 100 22.7 23.1 98 PARKER PEAK 9400 .0 .0 100 40.9 28.4 144 SYLVAN LAKE 8420 .0 .0 100 40.9 34.7 118 THUMB DIVIDE 7980 .0 .0 100 30.1 28.4 106 TWO OCEAN PLATEAU 9240 .1 .0 45.2 41.9 108 WHISKEY CREEK 6800 .0 .0 100 36.2 32.1 113 WHITE MILL 8700 .1 .0 39.8 41.8 95 WOLVERINE 7650 .0 .0 100 23.5 23.0 102 ----- ----- Basin wide percent of average * 109 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 27.1 27.0 100 COLD SPRINGS 9630 .0 .0 100 19.1 21.4 89 DEER PARK 9700 .0 .0 100 32.2 35.4 91 HOBBS PARK 10100 .0 .0 100 25.9 25.7 101 LITTLE WARM 9370 .0 .0 100 24.0 24.6 98 SOUTH PASS 9040 .0 .0 100 28.7 29.8 96 ST. LAWRENCE ALT 8620 .0 .0 100 17.6 19.4 91 TOGWOTEE PASS 9580 .0 .0 100 41.8 37.6 111 TOWNSEND CREEK 8700 .0 .0 100 22.7 22.9 99 ----- ----- Basin wide percent of average * 98 BIGHORN BASIN BALD MTN. 9380 .0 .0 100 29.4 30.9 95 BEAR TRAP MEADOW 8200 .0 .0 100 22.7 18.9 120 BLACKWATER 9780 .0 .0 100 38.9 35.3 110 BONE SPRINGS DIV 9350 .0 .0 100 30.6 28.6 107 EVENING STAR 9200 .0 .0 100 51.8 41.1 126 GRAVE SPRINGS 8550 .0 .0 100 20.6 21.0 98 KIRWIN 9550 .0 .0 100 24.5 23.8 103 MARQUETTE 8760 .0 .0 100 23.6 24.0 98 MIDDLE POWDER 7760 .1 .0 21.7 23.8 91 OWL CREEK 8975 .0 .0 100 14.9 15.8 94 POWDER RIVER PASS 9480 -M .0 * -M 24.8 * SHELL CREEK 9580 .0 .0 100 28.5 26.4 108 SYLVAN LAKE 8420 .0 .0 100 40.9 34.7 118 SYLVAN ROAD 7120 .1 .0 32.0 27.8 115 TIMBER CREEK 7950 .1 .0 21.3 19.1 112 YOUNTS PEAK 8350 .0 .0 100 26.4 27.8 95 ----- ----- Basin wide percent of average * 107 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100 38.9 35.3 110 EVENING STAR 9200 .0 .0 100 51.8 41.1 126 KIRWIN 9550 .0 .0 100 24.5 23.8 103 MARQUETTE 8760 .0 .0 100 23.6 24.0 98 SYLVAN LAKE 8420 .0 .0 100 40.9 34.7 118 SYLVAN ROAD 7120 .1 .0 32.0 27.8 115 YOUNTS PEAK 8350 .0 .0 100 26.4 27.8 95 ----- ----- Basin wide percent of average * 111 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 22.7 18.9 120 BIG GOOSE 7990 .0 .0 100 24.6 20.0 123 BONE SPRINGS DIV 9350 .0 .0 100 30.6 28.6 107 BURGESS JUNCTION 7880 .0 .0 100 27.9 24.0 116 CLOUD PEAK RESERVOIR 9860 .0 .0 100 33.7 27.9 121 DOME LAKE 8880 .0 .0 100 29.6 25.9 114 GRAVE SPRINGS 8550 .0 .0 100 20.6 21.0 98 HANSEN SAWMILL 8360 .0 .0 100 25.1 19.6 128 MIDDLE POWDER 7760 .1 .0 21.7 23.8 91 POWDER RIVER PASS 9480 -M .0 * -M 24.8 * SUCKER CREEK 8880 .0 .0 100 32.4 27.2 119 TIE CREEK 6870 .0 .0 100 25.0 22.2 113 ----- ----- Basin wide percent of average * 113 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 28.2 24.6 115 COLE CANYON 5910 .0 .0 100 26.8 20.2 133 NORTH RAPID CREEK 6130 .0 .0 100 34.4 23.2 148 ----- ----- Basin wide percent of average * 131 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 38.5 35.8 108 DIVIDE PEAK 8880 .0 .0 100 33.3 30.9 108 ELK RIVER 8700 .3 .0 32.3 29.8 108 JOE WRIGHT 10120 .3 .0 42.2 40.9 103 NORTH FRENCH CREEK 10130 -M .0 * 42.6 39.6 108 OLD BATTLE 10000 -M .0 * 53.2 48.4 110 SAGE CREEK BASIN 7850 .0 .0 100 23.7 17.9 132 SOUTH BRUSH CREEK 8440 .0 .0 100 25.0 28.1 89 TOWER 10500 .0 .0 100 55.4 54.9 101 WEBBER SPRINGS 9250 .0 .0 100 42.7 38.6 111 WILLOW CREEK PASS 9540 .2 .0 25.0 23.7 105 ----- ----- Basin wide percent of average * 107 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100 32.7 35.8 91 CASPER MTN. 7900 .0 .0 100 30.8 28.1 110 DEADMAN HILL 10220 .2 .0 30.0 28.9 104 DEER PARK 9700 .0 .0 100 32.2 35.4 91 LAPRELE CREEK 8375 -M .0 * 22.9 25.0 92 RENO HILL 8400 .0 .0 100 33.3 28.9 115 ROACH 9700 .0 .0 100 32.9 30.9 106 SAND LAKE 10050 .0 .0 100 43.8 39.1 112 SOUTH PASS 9040 .0 .0 100 28.7 29.8 96 WINDY PEAK 7900 .3 .0 21.0 21.7 97 ----- ----- Basin wide percent of average * 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 23.7 23.5 101 DIVIDE PEAK 8880 .0 .0 100 33.3 30.9 108 OLD BATTLE 10000 -M .0 * 53.2 48.4 110 SANDSTONE RS 8150 -M .0 * 30.4 28.3 107 WHISKEY PARK 8950 .0 .0 100 47.6 42.2 113 ----- ----- Basin wide percent of average * 109 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 20.2 22.3 91 BLIND BULL SUM 8650 .0 .0 100 25.8 31.8 81 EAST RIM DIVIDE 7930 .0 .0 100 16.0 19.1 84 ELKHART PARK G.S. 9400 .1 .0 18.0 23.0 78 GROS VENTRE SUMMIT 8750 .1 .0 20.4 22.1 92 GUNSIGHT PASS 9820 .1 -M * 21.7 -M * KENDALL R.S. 7740 .0 .0 100 19.0 21.8 87 LOOMIS PARK 8240 .0 .0 100 24.2 26.0 93 NEW FORK LAKE 8340 .2 .0 15.3 19.5 78 SNIDER BASIN 8060 .0 .0 100 20.1 22.9 88 SPRING CREEK DIVIDE 9000 -M .0 * 32.8 36.6 90 TRIPLE PEAK 8500 -M .0 * 40.6 35.8 113 ----- ----- Basin wide percent of average * 90 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 16.2 20.0 81 HEWINTA 9519 -M .0 * 28.0 24.7 113 HICKERSON PARK 9145 .0 .0 100 18.9 16.6 114 HOLE-IN-ROCK 9150 .0 .0 100 17.5 16.5 106 INDIAN CREEK 9425 .3 .0 31.5 35.7 88 KELLEY R.S. 8180 .2 .0 25.1 29.2 86 STEEL CREEK PARK 10200 -M .0 * 29.9 27.8 108 ----- ----- Basin wide percent of average * 98 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100 23.9 27.9 86 HAYDEN FORK 9212 .0 .0 100 32.0 32.5 98 KELLEY R.S. 8180 .2 .0 25.1 29.2 86 LILY LAKE 9156 .0 .0 100 25.9 27.8 93 MONTE CRISTO 8960 .0 .0 100 33.6 37.2 90 SALT RIVER SUMMIT 7760 -M .0 * -M 27.1 * TRIAL LAKE 9992 -M .0 * 34.1 38.1 90 ----- ----- Basin wide percent of average * 91 ----------------------------------------------------------------------------- -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.