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 WEDNESDAY: JULY 1 , 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 30.1 29.0 104 COTTONWOOD CREEK 7670 .0 .0 100 46.7 37.8 124 GRAND TARGHEE 9260 11.3 -M * 50.9 -M * GRANITE CREEK 6770 .2 .0 31.2 26.6 117 GRASSY LAKE 7265 .0 .0 100 48.5 48.0 101 GROS VENTRE SUMMIT 8750 .2 .0 23.9 19.7 121 GUNSIGHT PASS 9820 -M -M * 26.9 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 48.3 48.0 101 PHILLIPS BENCH 8200 .0 .0 100 42.1 38.9 108 SALT RIVER SUMMIT 7760 .0 .0 100 27.0 25.5 106 SNAKE RIVER STATION 6920 .0 .0 100 33.9 30.6 111 SPRING CREEK DIVIDE 9000 .0 .0 100 39.6 34.7 114 THUMB DIVIDE 7980 .1 .0 32.3 26.8 121 TOGWOTEE PASS 9580 3.4 3.7 92 43.8 34.9 126 TWO OCEAN PLATEAU 9240 5.0 6.8 74 44.8 39.1 115 WILLOW CREEK 8380 .0 .0 100 58.1 45.1 129 ----- ----- Basin wide percent of average 80 114 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .7 2.5 28 32.7 29.7 110 BLACK BEAR 8170 .1 2.8 4 50.8 53.4 95 CANYON 7870 .0 .0 100 26.4 22.6 117 FISHER CREEK 9100 -M 6.8 * 50.0 50.4 99 MADISON PLATEAU 7750 .1 .0 35.9 36.8 98 NORTHEAST ENTRANCE 7350 .1 .0 22.1 20.1 110 PARKER PEAK 9400 .1 2.3 4 29.1 26.0 112 SYLVAN LAKE 8420 .0 .0 100 36.2 32.0 113 THUMB DIVIDE 7980 .1 .0 32.3 26.8 121 TWO OCEAN PLATEAU 9240 5.0 6.8 74 44.8 39.1 115 WHISKEY CREEK 6800 .1 .0 29.6 29.9 99 WHITE MILL 8700 .0 1.6 0 36.6 38.4 95 WOLVERINE 7650 .0 .0 100 21.0 20.4 103 ----- ----- Basin wide percent of average 37 105 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 29.1 24.7 118 COLD SPRINGS 9630 .1 .0 20.0 19.4 103 DEER PARK 9700 .0 .0 100 30.9 33.3 93 HOBBS PARK 10100 .0 .9 0 26.2 23.3 112 LITTLE WARM 9370 .0 .0 100 25.9 22.1 117 SOUTH PASS 9040 .1 .0 26.4 28.0 94 ST. LAWRENCE ALT 8620 .1 .0 18.7 17.5 107 TOGWOTEE PASS 9580 3.4 3.7 92 43.8 34.9 126 TOWNSEND CREEK 8700 .0 .0 100 22.6 20.9 108 ----- ----- Basin wide percent of average 74 109 BIGHORN BASIN BALD MTN. 9380 -M 1.1 * 26.3 28.2 93 BEAR TRAP MEADOW 8200 -M .0 * -M 16.9 * BLACKWATER 9780 1.5 6.0 25 36.5 32.2 113 BONE SPRINGS DIV 9350 .0 .0 100 24.0 25.5 94 EVENING STAR 9200 -M 5.2 * -M 37.8 * GRAVE SPRINGS 8550 .0 .0 100 14.8 18.6 80 KIRWIN 9550 .0 .0 100 25.6 20.3 126 MARQUETTE 8760 .0 .0 100 17.4 21.1 82 MIDDLE POWDER 7760 .0 .0 100 17.1 21.7 79 OWL CREEK 8975 .0 .0 100 16.7 13.5 124 POWDER RIVER PASS 9480 .0 .0 100 24.8 22.4 111 SHELL CREEK 9580 .0 .1 0 25.8 23.8 108 SYLVAN LAKE 8420 .0 .0 100 36.2 32.0 113 SYLVAN ROAD 7120 .0 .0 100 30.1 25.8 117 TIMBER CREEK 7950 .1 .0 17.3 16.7 104 YOUNTS PEAK 8350 .0 .0 100 25.9 24.6 105 ----- ----- Basin wide percent of average 25 104 SHOSHONE RIVER BLACKWATER 9780 1.5 6.0 25 36.5 32.2 113 EVENING STAR 9200 -M 5.2 * -M 37.8 * KIRWIN 9550 .0 .0 100 25.6 20.3 126 MARQUETTE 8760 .0 .0 100 17.4 21.1 82 SYLVAN LAKE 8420 .0 .0 100 36.2 32.0 113 SYLVAN ROAD 7120 .0 .0 100 30.1 25.8 117 YOUNTS PEAK 8350 .0 .0 100 25.9 24.6 105 ----- ----- Basin wide percent of average 25 110 POWDER-TONGUE BEAR TRAP MEADOW 8200 -M .0 * -M 16.9 * BIG GOOSE 7990 .0 .0 100 19.8 18.0 110 BONE SPRINGS DIV 9350 .0 .0 100 24.0 25.5 94 BURGESS JUNCTION 7880 .0 .0 100 20.0 21.2 94 CLOUD PEAK RESERVOIR 9860 .0 .0 100 26.2 24.9 105 DOME LAKE 8880 .0 .0 100 24.2 23.2 104 GRAVE SPRINGS 8550 .0 .0 100 14.8 18.6 80 HANSEN SAWMILL 8360 .0 .0 100 17.4 17.0 102 MIDDLE POWDER 7760 .0 .0 100 17.1 21.7 79 POWDER RIVER PASS 9480 .0 .0 100 24.8 22.4 111 SUCKER CREEK 8880 .0 .0 100 26.5 24.5 108 TIE CREEK 6870 .0 .0 100 23.1 20.1 115 ----- ----- Basin wide percent of average * 100 BELLE FOURCHE BLIND PARK 6890 .2 .0 22.2 21.0 106 COLE CANYON 5910 .1 .0 19.6 16.5 119 NORTH RAPID CREEK 6130 .1 .0 18.7 17.9 104 ----- ----- Basin wide percent of average * 109 UPPER N. PLATTE RIVER COLUMBINE 9160 -M .0 * 36.4 33.7 108 DIVIDE PEAK 8880 .0 .0 100 38.5 29.0 133 ELK RIVER 8700 .1 .0 31.1 27.6 113 JOE WRIGHT 10120 .1 1.5 7 -M 37.3 * NORTH FRENCH CREEK 10130 -M 3.1 * -M 36.6 * OLD BATTLE 10000 .0 2.1 0 53.4 46.1 116 SAGE CREEK BASIN 7850 .0 .0 100 23.1 16.8 138 SOUTH BRUSH CREEK 8440 .0 .0 100 26.2 25.6 102 TOWER 10500 .1 9.7 1 57.2 52.3 109 WEBBER SPRINGS 9250 .0 .0 100 41.0 36.4 113 WILLOW CREEK PASS 9540 .0 .0 100 -M 21.0 * ----- ----- Basin wide percent of average 2 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .6 0 33.4 33.2 101 CASPER MTN. 7900 .0 .1 0 23.9 26.2 91 DEADMAN HILL 10220 .1 .5 20 24.8 26.4 94 DEER PARK 9700 .0 .0 100 30.9 33.3 93 LAPRELE CREEK 8375 .0 .0 100 20.8 22.0 95 RENO HILL 8400 -M .0 * 26.1 26.6 98 ROACH 9700 .0 .0 100 29.1 28.4 102 SAND LAKE 10050 .0 3.6 0 43.7 36.7 119 SOUTH PASS 9040 .1 .0 26.4 28.0 94 WINDY PEAK 7900 .4 .0 19.4 19.1 102 ----- ----- Basin wide percent of average 2 99 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 27.7 22.2 125 DIVIDE PEAK 8880 .0 .0 100 38.5 29.0 133 OLD BATTLE 10000 .0 2.1 0 53.4 46.1 116 SANDSTONE RS 8150 -M .0 * 30.2 26.3 115 WHISKEY PARK 8950 -M .0 * 46.8 39.8 118 ----- ----- Basin wide percent of average 0 120 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 25.2 20.4 124 BLIND BULL SUM 8650 .0 .0 100 31.7 29.8 106 EAST RIM DIVIDE 7930 .0 .0 100 20.8 17.5 119 ELKHART PARK G.S. 9400 -M .0 * 26.6 21.0 127 GROS VENTRE SUMMIT 8750 .2 .0 23.9 19.7 121 GUNSIGHT PASS 9820 -M -M * 26.9 -M * KENDALL R.S. 7740 .1 .0 23.0 20.2 114 LOOMIS PARK 8240 .1 .0 29.8 23.9 125 NEW FORK LAKE 8340 -M .0 * 20.7 17.6 118 SNIDER BASIN 8060 .0 .0 100 23.0 21.6 106 SPRING CREEK DIVIDE 9000 .0 .0 100 39.6 34.7 114 TRIPLE PEAK 8500 .1 .0 39.7 33.9 117 ----- ----- Basin wide percent of average * 117 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 22.0 18.4 120 HEWINTA 9519 .0 .0 100 20.7 21.8 95 HICKERSON PARK 9145 .0 .0 100 18.1 14.1 128 HOLE-IN-ROCK 9150 .0 .0 100 16.3 13.9 117 INDIAN CREEK 9425 .0 .0 100 33.2 34.1 97 KELLEY R.S. 8180 .0 .0 100 29.3 27.7 106 STEEL CREEK PARK 10200 .0 .6 0 25.3 24.9 102 ----- ----- Basin wide percent of average 0 106 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 26.0 26.5 98 HAYDEN FORK 9212 .0 .0 100 32.2 30.2 107 KELLEY R.S. 8180 .0 .0 100 29.3 27.7 106 LILY LAKE 9156 .0 .0 100 26.5 25.7 103 MONTE CRISTO 8960 .0 .0 100 37.9 35.7 106 SALT RIVER SUMMIT 7760 .0 .0 100 27.0 25.5 106 TRIAL LAKE 9992 .0 .7 0 36.0 35.3 102 ----- ----- Basin wide percent of average 0 104 ----------------------------------------------------------------------------- -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.