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: JULY 17 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 -M .0 * 35.1 29.7 118 COTTONWOOD CREEK 7670 .0 .0 100 -M 38.5 * GRAND TARGHEE 9260 .0 -M * 48.8 -M * GRANITE CREEK 6770 -M .0 * 32.3 27.3 118 GRASSY LAKE 7265 .0 .0 100 57.0 49.0 116 GROS VENTRE SUMMIT 8750 .1 .0 19.9 20.5 97 GUNSIGHT PASS 9820 -M -M * 21.3 -M * LEWIS LAKE DIVIDE 7850 .6 .0 49.0 48.9 100 PHILLIPS BENCH 8200 .0 .0 100 45.1 39.6 114 SALT RIVER SUMMIT 7760 .0 .0 100 22.2 26.1 85 SNAKE RIVER STATION 6920 .0 .0 100 36.5 31.5 116 SPRING CREEK DIVIDE 9000 -M .0 * 32.0 35.4 90 THUMB DIVIDE 7980 -M .0 * 29.5 27.5 107 TOGWOTEE PASS 9580 .0 .0 100 41.4 35.8 116 TWO OCEAN PLATEAU 9240 -M .0 * 44.8 40.3 111 WILLOW CREEK 8380 .0 .0 100 53.5 46.1 116 ----- ----- Basin wide percent of average * 109 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100 34.5 30.9 112 BLACK BEAR 8170 .0 .0 100 56.8 54.5 104 CANYON 7870 .0 .0 100 28.9 23.6 122 FISHER CREEK 9100 .5 .0 53.0 52.0 102 MADISON PLATEAU 7750 .1 .0 44.9 37.8 119 NORTHEAST ENTRANCE 7350 .2 .0 22.2 21.3 104 PARKER PEAK 9400 .0 .5 0 40.5 27.0 150 SYLVAN LAKE 8420 .0 .0 100 40.8 33.1 123 THUMB DIVIDE 7980 -M .0 * 29.5 27.5 107 TWO OCEAN PLATEAU 9240 -M .0 * 44.8 40.3 111 WHISKEY CREEK 6800 .0 .0 100 -M 30.9 * WHITE MILL 8700 .1 .0 38.9 39.8 98 WOLVERINE 7650 .0 .0 100 22.9 21.4 107 ----- ----- Basin wide percent of average 0 112 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 26.3 25.5 103 COLD SPRINGS 9630 .0 .0 100 -M 20.0 * DEER PARK 9700 .0 .0 100 -M 34.1 * HOBBS PARK 10100 .0 .0 100 25.8 24.2 107 LITTLE WARM 9370 .0 .0 100 22.9 23.1 99 SOUTH PASS 9040 .0 .0 100 -M 28.7 * ST. LAWRENCE ALT 8620 .0 .0 100 17.1 18.1 94 TOGWOTEE PASS 9580 .0 .0 100 41.4 35.8 116 TOWNSEND CREEK 8700 .0 .0 100 21.8 21.7 100 ----- ----- Basin wide percent of average * 105 BIGHORN BASIN BALD MTN. 9380 .0 .0 100 28.7 29.4 98 BEAR TRAP MEADOW 8200 .0 .0 100 21.2 17.8 119 BLACKWATER 9780 .0 .4 0 38.1 33.4 114 BONE SPRINGS DIV 9350 .0 .0 100 30.2 26.7 113 EVENING STAR 9200 .0 .6 0 51.3 39.2 131 GRAVE SPRINGS 8550 .0 .0 100 19.8 19.6 101 KIRWIN 9550 .0 .0 100 23.5 21.6 109 MARQUETTE 8760 .0 .0 100 23.4 22.1 106 MIDDLE POWDER 7760 .1 .0 20.0 22.6 88 OWL CREEK 8975 .1 .0 14.3 14.2 101 POWDER RIVER PASS 9480 .0 .0 100 27.4 23.3 118 SHELL CREEK 9580 .0 .0 100 28.0 24.9 112 SYLVAN LAKE 8420 .0 .0 100 40.8 33.1 123 SYLVAN ROAD 7120 .1 .0 31.5 26.6 118 TIMBER CREEK 7950 .1 .0 20.4 17.5 117 YOUNTS PEAK 8350 .1 .0 25.9 25.9 100 ----- ----- Basin wide percent of average 0 112 SHOSHONE RIVER BLACKWATER 9780 .0 .4 0 38.1 33.4 114 EVENING STAR 9200 .0 .6 0 51.3 39.2 131 KIRWIN 9550 .0 .0 100 23.5 21.6 109 MARQUETTE 8760 .0 .0 100 23.4 22.1 106 SYLVAN LAKE 8420 .0 .0 100 40.8 33.1 123 SYLVAN ROAD 7120 .1 .0 31.5 26.6 118 YOUNTS PEAK 8350 .1 .0 25.9 25.9 100 ----- ----- Basin wide percent of average 0 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 21.2 17.8 119 BIG GOOSE 7990 -M .0 * 24.1 19.0 127 BONE SPRINGS DIV 9350 .0 .0 100 30.2 26.7 113 BURGESS JUNCTION 7880 .0 .0 100 27.2 22.4 121 CLOUD PEAK RESERVOIR 9860 .0 .0 100 32.8 26.1 126 DOME LAKE 8880 .0 .0 100 29.5 24.2 122 GRAVE SPRINGS 8550 .0 .0 100 19.8 19.6 101 HANSEN SAWMILL 8360 .0 .0 100 24.6 18.0 137 MIDDLE POWDER 7760 .1 .0 20.0 22.6 88 POWDER RIVER PASS 9480 .0 .0 100 27.4 23.3 118 SUCKER CREEK 8880 .0 .0 100 31.7 25.6 124 TIE CREEK 6870 -M .0 * 25.0 20.9 120 ----- ----- Basin wide percent of average * 118 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 25.6 22.5 114 COLE CANYON 5910 .3 .0 24.8 17.9 139 NORTH RAPID CREEK 6130 .0 .0 100 30.0 20.1 149 ----- ----- Basin wide percent of average * 133 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 37.0 34.4 108 DIVIDE PEAK 8880 .0 .0 100 32.1 29.6 108 ELK RIVER 8700 .3 .0 30.4 28.3 107 JOE WRIGHT 10120 -M .0 * 40.6 38.5 105 NORTH FRENCH CREEK 10130 .0 .0 100 41.5 37.8 110 OLD BATTLE 10000 .0 .0 100 51.0 46.9 109 SAGE CREEK BASIN 7850 .0 .0 100 22.9 17.2 133 SOUTH BRUSH CREEK 8440 .0 .0 100 23.7 26.6 89 TOWER 10500 .0 .8 0 53.9 53.3 101 WEBBER SPRINGS 9250 .0 .0 100 39.8 37.1 107 WILLOW CREEK PASS 9540 -M .0 * 24.0 21.9 110 ----- ----- Basin wide percent of average 0 107 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 -M .0 * 32.1 34.2 94 CASPER MTN. 7900 .0 .0 100 30.4 26.9 113 DEADMAN HILL 10220 -M .0 * 28.7 27.1 106 DEER PARK 9700 .0 .0 100 -M 34.1 * LAPRELE CREEK 8375 -M .0 * -M 22.9 * RENO HILL 8400 .0 .0 100 32.8 27.3 120 ROACH 9700 .0 .0 100 32.2 29.2 110 SAND LAKE 10050 .0 .0 100 43.4 37.6 115 SOUTH PASS 9040 .0 .0 100 -M 28.7 * WINDY PEAK 7900 .5 .0 19.5 19.9 98 ----- ----- Basin wide percent of average * 108 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 22.9 22.7 101 DIVIDE PEAK 8880 .0 .0 100 32.1 29.6 108 OLD BATTLE 10000 .0 .0 100 51.0 46.9 109 SANDSTONE RS 8150 -M .0 * 28.4 27.0 105 WHISKEY PARK 8950 -M .0 * 46.7 40.7 115 ----- ----- Basin wide percent of average * 109 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 19.6 21.1 93 BLIND BULL SUM 8650 .0 .0 100 25.3 30.5 83 EAST RIM DIVIDE 7930 .0 .0 100 15.6 18.0 87 ELKHART PARK G.S. 9400 .1 .0 17.2 21.7 79 GROS VENTRE SUMMIT 8750 .1 .0 19.9 20.5 97 GUNSIGHT PASS 9820 -M -M * 21.3 -M * KENDALL R.S. 7740 .0 .0 100 18.5 20.7 89 LOOMIS PARK 8240 -M .0 * 23.6 24.6 96 NEW FORK LAKE 8340 .2 .0 14.5 18.3 79 SNIDER BASIN 8060 .0 .0 100 19.7 22.1 89 SPRING CREEK DIVIDE 9000 -M .0 * 32.0 35.4 90 TRIPLE PEAK 8500 .1 .0 39.4 34.6 114 ----- ----- Basin wide percent of average * 92 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 15.7 19.0 83 HEWINTA 9519 -M .0 * 24.1 22.9 105 HICKERSON PARK 9145 .0 .0 100 15.9 14.9 107 HOLE-IN-ROCK 9150 .0 .0 100 16.0 14.7 109 INDIAN CREEK 9425 .0 .0 100 30.9 34.6 89 KELLEY R.S. 8180 -M .0 * 24.4 28.3 86 STEEL CREEK PARK 10200 .7 .0 26.8 25.9 103 ----- ----- Basin wide percent of average * 96 UPPER BEAR RIVER BUG LAKE 7950 -M .0 * 23.5 27.0 87 HAYDEN FORK 9212 .1 .0 31.4 30.9 102 KELLEY R.S. 8180 -M .0 * 24.4 28.3 86 LILY LAKE 9156 .0 .0 100 25.3 26.3 96 MONTE CRISTO 8960 .0 .0 100 33.3 36.2 92 SALT RIVER SUMMIT 7760 .0 .0 100 22.2 26.1 85 TRIAL LAKE 9992 -M .0 * 32.3 36.1 89 ----- ----- 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.