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 7 , 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 30.2 29.2 103 COTTONWOOD CREEK 7670 .0 .0 100 47.5 38.0 125 GRAND TARGHEE 9260 .0 -M * 50.7 -M * GRANITE CREEK 6770 .1 .0 31.5 26.8 118 GRASSY LAKE 7265 .0 .0 100 47.3 48.3 98 GROS VENTRE SUMMIT 8750 .0 .0 100 24.7 20.0 123 GUNSIGHT PASS 9820 -M -M * 28.2 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 48.4 48.3 100 PHILLIPS BENCH 8200 .2 .0 42.8 39.1 109 SALT RIVER SUMMIT 7760 .0 .0 100 27.5 25.7 107 SNAKE RIVER STATION 6920 .0 .0 100 34.7 30.9 112 SPRING CREEK DIVIDE 9000 .0 .0 100 39.9 35.0 114 THUMB DIVIDE 7980 .1 .0 32.5 27.0 120 TOGWOTEE PASS 9580 .0 .0 100 44.1 35.2 125 TWO OCEAN PLATEAU 9240 .0 2.3 0 45.7 39.5 116 WILLOW CREEK 8380 .0 .0 100 58.6 45.5 129 ----- ----- Basin wide percent of average 0 114 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 1.1 0 33.9 30.1 113 BLACK BEAR 8170 .0 .9 0 50.9 53.8 95 CANYON 7870 .0 .0 100 26.5 23.0 115 FISHER CREEK 9100 .0 1.9 0 50.3 51.0 99 MADISON PLATEAU 7750 .0 .0 100 36.6 37.2 98 NORTHEAST ENTRANCE 7350 .0 .0 100 22.8 20.5 111 PARKER PEAK 9400 .0 1.4 0 29.8 26.4 113 SYLVAN LAKE 8420 .0 .0 100 36.7 32.4 113 THUMB DIVIDE 7980 .1 .0 32.5 27.0 120 TWO OCEAN PLATEAU 9240 .0 2.3 0 45.7 39.5 116 WHISKEY CREEK 6800 .0 .0 100 29.9 30.3 99 WHITE MILL 8700 .0 .3 0 37.3 38.9 96 WOLVERINE 7650 .0 .0 100 21.5 20.8 103 ----- ----- Basin wide percent of average 0 105 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 29.2 24.9 117 COLD SPRINGS 9630 .0 .0 100 20.5 19.6 105 DEER PARK 9700 .0 .0 100 31.0 33.6 92 HOBBS PARK 10100 .0 .4 0 26.4 23.6 112 LITTLE WARM 9370 .0 .0 100 26.2 22.4 117 SOUTH PASS 9040 .0 .0 100 27.0 28.3 95 ST. LAWRENCE ALT 8620 .0 .0 100 19.1 17.7 108 TOGWOTEE PASS 9580 .0 .0 100 44.1 35.2 125 TOWNSEND CREEK 8700 .0 .0 100 22.5 21.2 106 ----- ----- Basin wide percent of average 0 109 BIGHORN BASIN BALD MTN. 9380 .0 .4 0 26.4 28.6 92 BEAR TRAP MEADOW 8200 .0 .0 100 17.5 17.2 102 BLACKWATER 9780 .0 2.7 0 36.9 32.7 113 BONE SPRINGS DIV 9350 .0 .0 100 25.1 25.9 97 EVENING STAR 9200 .0 2.4 0 44.6 38.3 116 GRAVE SPRINGS 8550 .0 .0 100 16.3 19.0 86 KIRWIN 9550 .0 .0 100 26.4 20.7 128 MARQUETTE 8760 .0 .0 100 17.9 21.5 83 MIDDLE POWDER 7760 .0 .0 100 18.7 22.1 85 OWL CREEK 8975 .0 .0 100 18.7 13.7 136 POWDER RIVER PASS 9480 .0 .0 100 25.9 22.8 114 SHELL CREEK 9580 .0 .1 0 26.1 24.2 108 SYLVAN LAKE 8420 .0 .0 100 36.7 32.4 113 SYLVAN ROAD 7120 .0 .0 100 30.4 26.0 117 TIMBER CREEK 7950 .0 .0 100 17.9 16.9 106 YOUNTS PEAK 8350 .0 .0 100 26.5 25.0 106 ----- ----- Basin wide percent of average 0 106 SHOSHONE RIVER BLACKWATER 9780 .0 2.7 0 36.9 32.7 113 EVENING STAR 9200 .0 2.4 0 44.6 38.3 116 KIRWIN 9550 .0 .0 100 26.4 20.7 128 MARQUETTE 8760 .0 .0 100 17.9 21.5 83 SYLVAN LAKE 8420 .0 .0 100 36.7 32.4 113 SYLVAN ROAD 7120 .0 .0 100 30.4 26.0 117 YOUNTS PEAK 8350 .0 .0 100 26.5 25.0 106 ----- ----- Basin wide percent of average 0 112 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 17.5 17.2 102 BIG GOOSE 7990 .0 .0 100 20.3 18.4 110 BONE SPRINGS DIV 9350 .0 .0 100 25.1 25.9 97 BURGESS JUNCTION 7880 .0 .0 100 21.1 21.6 98 CLOUD PEAK RESERVOIR 9860 .0 .0 100 27.2 25.3 108 DOME LAKE 8880 .0 .0 100 24.6 23.6 104 GRAVE SPRINGS 8550 .0 .0 100 16.3 19.0 86 HANSEN SAWMILL 8360 .0 .0 100 17.9 17.3 103 MIDDLE POWDER 7760 .0 .0 100 18.7 22.1 85 POWDER RIVER PASS 9480 .0 .0 100 25.9 22.8 114 SUCKER CREEK 8880 .0 .0 100 28.0 24.9 112 TIE CREEK 6870 .0 .0 100 24.4 20.4 120 ----- ----- Basin wide percent of average * 103 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 23.4 21.5 109 COLE CANYON 5910 .0 .0 100 21.5 17.0 126 NORTH RAPID CREEK 6130 .0 .0 100 19.4 18.6 104 ----- ----- Basin wide percent of average * 113 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 37.0 33.9 109 DIVIDE PEAK 8880 .0 .0 100 39.0 29.2 134 ELK RIVER 8700 .3 .0 31.3 27.8 113 JOE WRIGHT 10120 .2 .6 33 41.2 37.7 109 NORTH FRENCH CREEK 10130 -M 1.2 * -M 37.0 * OLD BATTLE 10000 .0 .6 0 -M 46.4 * SAGE CREEK BASIN 7850 .0 .0 100 23.3 16.9 138 SOUTH BRUSH CREEK 8440 .0 .0 100 26.3 25.9 102 TOWER 10500 .0 5.3 0 59.0 52.6 112 WEBBER SPRINGS 9250 .0 .0 100 41.2 36.6 113 WILLOW CREEK PASS 9540 .0 .0 100 -M 21.3 * ----- ----- Basin wide percent of average 3 114 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100 33.3 33.5 99 CASPER MTN. 7900 .0 .0 100 25.0 26.4 95 DEADMAN HILL 10220 .0 .1 0 25.2 26.6 95 DEER PARK 9700 .0 .0 100 31.0 33.6 92 LAPRELE CREEK 8375 .0 .0 100 21.6 22.3 97 RENO HILL 8400 -M .0 * 27.0 26.8 101 ROACH 9700 -M .0 * 29.8 28.6 104 SAND LAKE 10050 .0 1.6 0 43.7 36.9 118 SOUTH PASS 9040 .0 .0 100 27.0 28.3 95 WINDY PEAK 7900 .4 .0 19.8 19.4 102 ----- ----- Basin wide percent of average 0 100 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 28.1 22.4 125 DIVIDE PEAK 8880 .0 .0 100 39.0 29.2 134 OLD BATTLE 10000 .0 .6 0 -M 46.4 * SANDSTONE RS 8150 -M .0 * 30.6 26.5 115 WHISKEY PARK 8950 .0 .0 100 47.1 40.1 117 ----- ----- Basin wide percent of average 0 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 25.6 20.7 124 BLIND BULL SUM 8650 .0 .0 100 32.1 30.0 107 EAST RIM DIVIDE 7930 .0 .0 100 21.0 17.7 119 ELKHART PARK G.S. 9400 .0 .0 100 26.8 21.2 126 GROS VENTRE SUMMIT 8750 .0 .0 100 24.7 20.0 123 GUNSIGHT PASS 9820 -M -M * 28.2 -M * KENDALL R.S. 7740 .0 .0 100 23.1 20.3 114 LOOMIS PARK 8240 .1 .0 29.9 24.1 124 NEW FORK LAKE 8340 1.1 .0 20.8 17.8 117 SNIDER BASIN 8060 .0 .0 100 23.1 21.8 106 SPRING CREEK DIVIDE 9000 .0 .0 100 39.9 35.0 114 TRIPLE PEAK 8500 .0 .0 100 40.6 34.1 119 ----- ----- Basin wide percent of average * 117 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 22.3 18.6 120 HEWINTA 9519 .0 .0 100 21.5 22.1 97 HICKERSON PARK 9145 .0 .0 100 19.9 14.4 138 HOLE-IN-ROCK 9150 .0 .0 100 17.9 14.2 126 INDIAN CREEK 9425 .0 .0 100 33.2 34.3 97 KELLEY R.S. 8180 .0 .0 100 29.4 27.9 105 STEEL CREEK PARK 10200 .0 .1 0 26.0 25.2 103 ----- ----- Basin wide percent of average 0 109 UPPER BEAR RIVER BUG LAKE 7950 .1 .0 26.9 26.7 101 HAYDEN FORK 9212 .0 .0 100 32.7 30.4 108 KELLEY R.S. 8180 .0 .0 100 29.4 27.9 105 LILY LAKE 9156 .0 .0 100 27.0 25.9 104 MONTE CRISTO 8960 -M .0 * 38.5 35.8 108 SALT RIVER SUMMIT 7760 .0 .0 100 27.5 25.7 107 TRIAL LAKE 9992 .0 .0 100 37.3 35.5 105 ----- ----- Basin wide percent of average * 105 ----------------------------------------------------------------------------- -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.