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 MONDAY: AUGUST 31 , 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 32.4 31.5 103 COTTONWOOD CREEK 7670 .0 .0 100 48.9 40.7 120 GRAND TARGHEE 9260 .0 -M * 53.0 -M * GRANITE CREEK 6770 .1 .0 32.4 29.1 111 GRASSY LAKE 7265 .1 .0 53.1 51.2 104 GROS VENTRE SUMMIT 8750 .1 .0 25.9 22.9 113 GUNSIGHT PASS 9820 -M -M * -M -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 51.0 51.2 100 PHILLIPS BENCH 8200 .0 .0 100 45.0 41.7 108 SALT RIVER SUMMIT 7760 .2 .0 28.1 27.9 101 SNAKE RIVER STATION 6920 .0 .0 100 36.6 33.5 109 SPRING CREEK DIVIDE 9000 .1 .0 41.0 37.4 110 THUMB DIVIDE 7980 .1 .0 35.0 29.0 121 TOGWOTEE PASS 9580 .0 .0 100 46.1 38.4 120 TWO OCEAN PLATEAU 9240 .0 .0 100 48.3 42.8 113 WILLOW CREEK 8380 .0 .0 100 60.1 48.9 123 ----- ----- Basin wide percent of average * 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100 37.1 33.3 111 BLACK BEAR 8170 .0 .0 100 53.5 57.2 94 CANYON 7870 .0 .0 100 28.5 25.9 110 FISHER CREEK 9100 .0 .0 100 53.4 55.3 97 MADISON PLATEAU 7750 .0 .0 100 38.7 40.0 97 NORTHEAST ENTRANCE 7350 .0 .0 100 26.0 24.0 108 PARKER PEAK 9400 .0 .0 100 33.1 29.1 114 SYLVAN LAKE 8420 .0 .0 100 39.7 35.3 112 THUMB DIVIDE 7980 .1 .0 35.0 29.0 121 TWO OCEAN PLATEAU 9240 .0 .0 100 48.3 42.8 113 WHISKEY CREEK 6800 .0 .0 100 31.5 33.0 95 WHITE MILL 8700 .0 .0 100 40.5 42.9 94 WOLVERINE 7650 .0 .0 100 24.5 23.8 103 ----- ----- Basin wide percent of average * 104 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 30.7 27.7 111 COLD SPRINGS 9630 .0 .0 100 22.0 21.9 100 DEER PARK 9700 .0 .0 100 32.6 36.0 91 HOBBS PARK 10100 .0 .0 100 28.0 26.4 106 LITTLE WARM 9370 .0 .0 100 28.1 25.3 111 SOUTH PASS 9040 .0 .0 100 28.3 30.3 93 ST. LAWRENCE ALT 8620 .0 .0 100 20.5 19.9 103 TOGWOTEE PASS 9580 .0 .0 100 46.1 38.4 120 TOWNSEND CREEK 8700 .0 .0 100 24.5 23.4 105 ----- ----- Basin wide percent of average * 105 BIGHORN BASIN BALD MTN. 9380 .0 .0 100 29.4 31.5 93 BEAR TRAP MEADOW 8200 .0 .0 100 21.9 19.3 113 BLACKWATER 9780 .0 .0 100 39.4 36.1 109 BONE SPRINGS DIV 9350 .0 .0 100 28.1 29.4 96 EVENING STAR 9200 .0 .0 100 48.9 41.9 117 GRAVE SPRINGS 8550 .0 .0 100 18.4 21.3 86 KIRWIN 9550 .0 .0 100 29.8 24.7 121 MARQUETTE 8760 .0 .0 100 21.0 24.8 85 MIDDLE POWDER 7760 .0 .0 100 23.4 24.2 97 OWL CREEK 8975 .0 .0 100 21.2 16.2 131 POWDER RIVER PASS 9480 .0 .0 100 28.7 25.3 113 SHELL CREEK 9580 .0 .0 100 29.3 27.0 109 SYLVAN LAKE 8420 .0 .0 100 39.7 35.3 112 SYLVAN ROAD 7120 .0 .0 100 32.8 28.5 115 TIMBER CREEK 7950 .0 .0 100 19.8 19.8 100 YOUNTS PEAK 8350 .0 .0 100 28.5 28.8 99 ----- ----- Basin wide percent of average * 106 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100 39.4 36.1 109 EVENING STAR 9200 .0 .0 100 48.9 41.9 117 KIRWIN 9550 .0 .0 100 29.8 24.7 121 MARQUETTE 8760 .0 .0 100 21.0 24.8 85 SYLVAN LAKE 8420 .0 .0 100 39.7 35.3 112 SYLVAN ROAD 7120 .0 .0 100 32.8 28.5 115 YOUNTS PEAK 8350 .0 .0 100 28.5 28.8 99 ----- ----- Basin wide percent of average * 109 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 21.9 19.3 113 BIG GOOSE 7990 .0 .0 100 23.4 20.8 112 BONE SPRINGS DIV 9350 .0 .0 100 28.1 29.4 96 BURGESS JUNCTION 7880 .0 .0 100 24.2 24.5 99 CLOUD PEAK RESERVOIR 9860 .0 .0 100 30.8 28.6 108 DOME LAKE 8880 .0 .0 100 27.7 26.6 104 GRAVE SPRINGS 8550 .0 .0 100 18.4 21.3 86 HANSEN SAWMILL 8360 .0 .0 100 20.5 20.2 101 MIDDLE POWDER 7760 .0 .0 100 23.4 24.2 97 POWDER RIVER PASS 9480 .0 .0 100 28.7 25.3 113 SUCKER CREEK 8880 .0 .0 100 31.3 27.8 113 TIE CREEK 6870 .0 .0 100 28.2 23.0 123 ----- ----- Basin wide percent of average * 105 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 27.3 25.4 107 COLE CANYON 5910 .0 .0 100 27.1 21.1 128 NORTH RAPID CREEK 6130 .0 .0 100 22.5 24.0 94 ----- ----- Basin wide percent of average * 109 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 38.4 36.4 105 DIVIDE PEAK 8880 .1 .0 41.5 31.6 131 ELK RIVER 8700 .0 .0 100 33.2 30.6 108 JOE WRIGHT 10120 .0 .0 100 44.0 42.1 105 NORTH FRENCH CREEK 10130 .0 .0 100 48.1 40.4 119 OLD BATTLE 10000 .0 .0 100 -M 49.1 * SAGE CREEK BASIN 7850 .0 .0 100 26.1 18.3 143 SOUTH BRUSH CREEK 8440 .0 .0 100 27.4 28.9 95 TOWER 10500 .1 .0 60.3 55.8 108 WEBBER SPRINGS 9250 .0 .0 100 43.1 39.3 110 WILLOW CREEK PASS 9540 .0 .0 100 23.1 24.7 94 ----- ----- Basin wide percent of average * 111 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100 34.3 36.6 94 CASPER MTN. 7900 .0 .0 100 26.7 28.6 93 DEADMAN HILL 10220 .0 .0 100 28.9 29.7 97 DEER PARK 9700 .0 .0 100 32.6 36.0 91 LAPRELE CREEK 8375 -M .0 * 23.4 25.9 90 RENO HILL 8400 .0 .0 100 28.3 29.6 96 ROACH 9700 .0 .0 100 32.4 31.7 102 SAND LAKE 10050 .0 .0 100 45.5 39.9 114 SOUTH PASS 9040 .0 .0 100 28.3 30.3 93 WINDY PEAK 7900 .0 .0 100 23.3 22.3 104 ----- ----- Basin wide percent of average * 98 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 29.0 24.0 121 DIVIDE PEAK 8880 .1 .0 41.5 31.6 131 OLD BATTLE 10000 .0 .0 100 -M 49.1 * SANDSTONE RS 8150 .5 .0 32.1 29.1 110 WHISKEY PARK 8950 .0 .0 100 48.4 42.9 113 ----- ----- Basin wide percent of average * 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 27.1 23.0 118 BLIND BULL SUM 8650 .0 .0 100 32.9 32.6 101 EAST RIM DIVIDE 7930 -M .0 * 21.8 19.8 110 ELKHART PARK G.S. 9400 .2 .0 28.1 24.1 117 GROS VENTRE SUMMIT 8750 .1 .0 25.9 22.9 113 GUNSIGHT PASS 9820 -M -M * -M -M * KENDALL R.S. 7740 .1 .0 24.3 22.4 108 LOOMIS PARK 8240 .1 .0 30.6 27.0 113 NEW FORK LAKE 8340 .0 .0 100 21.8 20.3 107 SNIDER BASIN 8060 .0 .0 100 23.7 23.5 101 SPRING CREEK DIVIDE 9000 .1 .0 41.0 37.4 110 TRIPLE PEAK 8500 .1 .0 41.5 36.6 113 ----- ----- Basin wide percent of average * 110 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 23.0 20.5 112 HEWINTA 9519 .0 .0 100 23.2 25.6 91 HICKERSON PARK 9145 .0 .0 100 23.1 17.7 131 HOLE-IN-ROCK 9150 .0 .0 100 19.5 17.6 111 INDIAN CREEK 9425 .1 .0 34.2 36.5 94 KELLEY R.S. 8180 .2 .0 30.6 29.8 103 STEEL CREEK PARK 10200 .0 .0 100 28.0 28.7 98 ----- ----- Basin wide percent of average * 103 UPPER BEAR RIVER BUG LAKE 7950 .1 .0 27.7 28.6 97 HAYDEN FORK 9212 .0 .0 100 33.9 33.4 101 KELLEY R.S. 8180 .2 .0 30.6 29.8 103 LILY LAKE 9156 .0 .0 100 28.0 28.8 97 MONTE CRISTO 8960 .0 .0 100 39.6 38.0 104 SALT RIVER SUMMIT 7760 .2 .0 28.1 27.9 101 TRIAL LAKE 9992 .0 .0 100 38.5 39.3 98 ----- ----- Basin wide percent of average * 100 ----------------------------------------------------------------------------- -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.