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 TUESDAY: JULY 22 , 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 29.9 117 COTTONWOOD CREEK 7670 .0 .0 100 -M 38.7 * GRAND TARGHEE 9260 .0 -M * 49.1 -M * GRANITE CREEK 6770 -M .0 * 32.3 27.5 117 GRASSY LAKE 7265 .1 .0 57.5 49.2 117 GROS VENTRE SUMMIT 8750 .2 .0 20.0 20.8 96 GUNSIGHT PASS 9820 -M -M * 21.4 -M * LEWIS LAKE DIVIDE 7850 .1 .0 49.1 49.2 100 PHILLIPS BENCH 8200 .0 .0 100 45.2 39.8 114 SALT RIVER SUMMIT 7760 .0 .0 100 22.2 26.3 84 SNAKE RIVER STATION 6920 .0 .0 100 36.8 31.7 116 SPRING CREEK DIVIDE 9000 -M .0 * 31.8 35.6 89 THUMB DIVIDE 7980 -M .0 * 29.7 27.6 108 TOGWOTEE PASS 9580 .1 .0 41.5 36.2 115 TWO OCEAN PLATEAU 9240 -M .0 * 45.0 40.6 111 WILLOW CREEK 8380 .0 .0 100 53.6 46.5 115 ----- ----- Basin wide percent of average * 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100 34.8 31.3 111 BLACK BEAR 8170 .0 .0 100 56.9 54.8 104 CANYON 7870 .0 .0 100 28.9 23.9 121 FISHER CREEK 9100 .4 .0 53.7 52.4 102 MADISON PLATEAU 7750 .1 .0 44.9 38.0 118 NORTHEAST ENTRANCE 7350 .3 .0 22.5 21.6 104 PARKER PEAK 9400 .1 .1 100 40.6 27.3 149 SYLVAN LAKE 8420 .0 .0 100 40.8 33.4 122 THUMB DIVIDE 7980 -M .0 * 29.7 27.6 108 TWO OCEAN PLATEAU 9240 -M .0 * 45.0 40.6 111 WHISKEY CREEK 6800 .0 .0 100 -M 31.1 * WHITE MILL 8700 .2 .0 39.3 40.1 98 WOLVERINE 7650 .1 .0 23.0 21.7 106 ----- ----- Basin wide percent of average 100* 111 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 26.4 25.7 103 COLD SPRINGS 9630 .1 .0 18.5 20.3 91 DEER PARK 9700 .0 .0 100 31.2 34.3 91 HOBBS PARK 10100 .0 .0 100 25.8 24.5 105 LITTLE WARM 9370 .0 .0 100 23.3 23.4 100 SOUTH PASS 9040 .1 .0 27.8 28.9 96 ST. LAWRENCE ALT 8620 .1 .0 17.1 18.4 93 TOGWOTEE PASS 9580 .1 .0 41.5 36.2 115 TOWNSEND CREEK 8700 .0 .0 100 22.2 21.9 101 ----- ----- Basin wide percent of average * 100 BIGHORN BASIN BALD MTN. 9380 .0 .0 100 29.3 29.8 98 BEAR TRAP MEADOW 8200 .0 .0 100 21.9 18.0 122 BLACKWATER 9780 .0 .0 100 38.6 33.8 114 BONE SPRINGS DIV 9350 .0 .0 100 30.8 27.0 114 EVENING STAR 9200 .1 .0 51.6 39.6 130 GRAVE SPRINGS 8550 .0 .0 100 19.8 19.9 99 KIRWIN 9550 .1 .0 23.7 22.0 108 MARQUETTE 8760 .1 .0 23.5 22.5 104 MIDDLE POWDER 7760 .1 .0 20.3 22.9 89 OWL CREEK 8975 .1 .0 14.3 14.6 98 POWDER RIVER PASS 9480 .0 .0 100 27.7 23.6 117 SHELL CREEK 9580 .1 .0 28.2 25.2 112 SYLVAN LAKE 8420 .0 .0 100 40.8 33.4 122 SYLVAN ROAD 7120 .0 .0 100 31.6 26.8 118 TIMBER CREEK 7950 .2 .0 20.5 17.8 115 YOUNTS PEAK 8350 .2 .0 26.2 26.3 100 ----- ----- Basin wide percent of average * 111 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100 38.6 33.8 114 EVENING STAR 9200 .1 .0 51.6 39.6 130 KIRWIN 9550 .1 .0 23.7 22.0 108 MARQUETTE 8760 .1 .0 23.5 22.5 104 SYLVAN LAKE 8420 .0 .0 100 40.8 33.4 122 SYLVAN ROAD 7120 .0 .0 100 31.6 26.8 118 YOUNTS PEAK 8350 .2 .0 26.2 26.3 100 ----- ----- Basin wide percent of average * 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 21.9 18.0 122 BIG GOOSE 7990 .3 .0 24.4 19.4 126 BONE SPRINGS DIV 9350 .0 .0 100 30.8 27.0 114 BURGESS JUNCTION 7880 .0 .0 100 27.6 22.8 121 CLOUD PEAK RESERVOIR 9860 .0 .0 100 32.8 26.5 124 DOME LAKE 8880 .0 .0 100 29.4 24.5 120 GRAVE SPRINGS 8550 .0 .0 100 19.8 19.9 99 HANSEN SAWMILL 8360 .0 .0 100 25.1 18.3 137 MIDDLE POWDER 7760 .1 .0 20.3 22.9 89 POWDER RIVER PASS 9480 .0 .0 100 27.7 23.6 117 SUCKER CREEK 8880 .0 .0 100 32.4 26.0 125 TIE CREEK 6870 .0 .0 100 25.1 21.0 120 ----- ----- Basin wide percent of average * 118 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 26.7 23.0 116 COLE CANYON 5910 .3 .0 25.7 18.4 140 NORTH RAPID CREEK 6130 .0 .0 100 31.9 20.9 153 ----- ----- Basin wide percent of average * 135 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .0 37.6 34.7 108 DIVIDE PEAK 8880 .0 .0 100 32.1 29.9 107 ELK RIVER 8700 .3 .0 30.4 28.6 106 JOE WRIGHT 10120 -M .0 * 41.0 38.9 105 NORTH FRENCH CREEK 10130 -M .0 * 41.6 38.2 109 OLD BATTLE 10000 -M .0 * 50.9 47.2 108 SAGE CREEK BASIN 7850 .0 .0 100 22.9 17.3 132 SOUTH BRUSH CREEK 8440 .0 .0 100 23.4 26.9 87 TOWER 10500 .0 .0 100 54.0 53.6 101 WEBBER SPRINGS 9250 .0 .0 100 39.8 37.4 106 WILLOW CREEK PASS 9540 .4 .0 24.1 22.2 109 ----- ----- Basin wide percent of average * 106 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100 31.8 34.5 92 CASPER MTN. 7900 .0 .0 100 30.4 27.1 112 DEADMAN HILL 10220 -M .0 * 28.6 27.4 104 DEER PARK 9700 .0 .0 100 31.2 34.3 91 LAPRELE CREEK 8375 -M .0 * -M 23.2 * RENO HILL 8400 .0 .0 100 33.0 27.5 120 ROACH 9700 .0 .0 100 32.2 29.4 110 SAND LAKE 10050 -M .0 * 43.4 37.9 115 SOUTH PASS 9040 .1 .0 27.8 28.9 96 WINDY PEAK 7900 .4 .0 19.6 20.3 97 ----- ----- Basin wide percent of average * 104 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 23.1 22.8 101 DIVIDE PEAK 8880 .0 .0 100 32.1 29.9 107 OLD BATTLE 10000 -M .0 * 50.9 47.2 108 SANDSTONE RS 8150 -M .0 * 28.4 27.2 104 WHISKEY PARK 8950 -M .0 * -M 41.0 * ----- ----- Basin wide percent of average * 106 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 19.7 21.3 92 BLIND BULL SUM 8650 .0 .0 100 25.4 30.7 83 EAST RIM DIVIDE 7930 .0 .0 100 15.7 18.2 86 ELKHART PARK G.S. 9400 .1 .0 17.2 21.9 79 GROS VENTRE SUMMIT 8750 .2 .0 20.0 20.8 96 GUNSIGHT PASS 9820 -M -M * 21.4 -M * KENDALL R.S. 7740 .1 .0 18.6 20.9 89 LOOMIS PARK 8240 -M .0 * 23.6 24.8 95 NEW FORK LAKE 8340 .2 .0 14.6 18.5 79 SNIDER BASIN 8060 .0 .0 100 19.8 22.2 89 SPRING CREEK DIVIDE 9000 -M .0 * 31.8 35.6 89 TRIPLE PEAK 8500 .1 .0 39.5 34.8 114 ----- ----- Basin wide percent of average * 91 LOWER GREEN RIVER HAMS FORK 7840 -M .0 * 15.8 19.2 82 HEWINTA 9519 -M .0 * 24.1 23.3 103 HICKERSON PARK 9145 .0 .0 100 15.9 15.2 105 HOLE-IN-ROCK 9150 .0 .0 100 16.0 15.0 107 INDIAN CREEK 9425 .1 .0 31.2 34.8 90 KELLEY R.S. 8180 -M .0 * 24.5 28.4 86 STEEL CREEK PARK 10200 .8 .0 26.8 26.2 102 ----- ----- Basin wide percent of average * 95 UPPER BEAR RIVER BUG LAKE 7950 -M .0 * 23.2 27.1 86 HAYDEN FORK 9212 .1 .0 31.3 31.2 100 KELLEY R.S. 8180 -M .0 * 24.5 28.4 86 LILY LAKE 9156 .0 .0 100 25.4 26.6 95 MONTE CRISTO 8960 .1 .0 33.3 36.4 91 SALT RIVER SUMMIT 7760 .0 .0 100 22.2 26.3 84 TRIAL LAKE 9992 -M .0 * 32.2 36.4 88 ----- ----- Basin wide percent of average * 90 ----------------------------------------------------------------------------- -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.