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 FRIDAY: SEPTEMBER 23 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * 41.5 32.8 127 COTTONWOOD CREEK 7670 .0 .0 100* 58.2 42.3 138 GRAND TARGHEE 9260 .0 -M * 66.9 -M * GRANITE CREEK 6770 .0 .0 100* 39.9 30.2 132 GRASSY LAKE 7265 .1 .0 * 67.1 53.1 126 GROS VENTRE SUMMIT 8750 .0 .0 100* 27.0 24.5 110 GUNSIGHT PASS 9820 .0 -M * 33.2 -M * LEWIS LAKE DIVIDE 7850 .1 .0 * 59.9 52.8 113 PHILLIPS BENCH 8200 .0 .0 100* 53.7 43.3 124 SALT RIVER SUMMIT 7760 .1 .0 * 35.2 29.2 121 SNAKE RIVER STATION 6920 .0 .0 100* 44.8 34.8 129 SPRING CREEK DIVIDE 9000 .2 .0 * 49.7 38.9 128 THUMB DIVIDE 7980 .1 .0 * 36.6 30.0 122 TOGWOTEE PASS 9580 .0 .0 100* 51.5 40.1 128 TWO OCEAN PLATEAU 9240 .0 .0 100* 51.9 44.5 117 WILLOW CREEK 8380 .0 .0 100* 67.0 51.0 131 ----- ----- Basin wide percent of average * 125 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .1 .2 50* 43.4 34.7 125 BLACK BEAR 8170 .1 .1 100* 73.7 59.0 125 CANYON 7870 .0 .0 100* 30.0 27.2 110 FISHER CREEK 9100 .1 .1 100* 62.3 57.5 108 MADISON PLATEAU 7750 .0 .1 0* 53.1 41.6 128 NORTHEAST ENTRANCE 7350 .1 .0 * 28.2 25.5 111 PARKER PEAK 9400 .0 .3 0* 47.3 30.4 156 SYLVAN LAKE 8420 .0 .1 0* 48.7 36.7 133 THUMB DIVIDE 7980 .1 .0 * 36.6 30.0 122 TWO OCEAN PLATEAU 9240 .0 .0 100* 51.9 44.5 117 WHISKEY CREEK 6800 .0 .0 100* 42.6 34.8 122 WHITE MILL 8700 .0 .1 0* 45.5 44.8 102 WOLVERINE 7650 .0 .0 100* 27.9 25.2 111 ----- ----- Basin wide percent of average 50* 120 WIND RIVER BURROUGHS CREEK 8750 .1 .1 100* 32.0 29.3 109 CASTLE CREEK 8400 .1 -M * 17.6 -M * COLD SPRINGS 9630 .0 .1 0* 23.5 23.5 100 DEER PARK 9700 .0 .6 0* 38.4 37.5 102 HOBBS PARK 10100 .0 .2 0* 32.8 27.9 118 LITTLE WARM 9370 .0 .1 0* 27.8 27.0 103 SOUTH PASS 9040 .0 .1 0* 29.1 31.5 92 ST. LAWRENCE ALT 8620 .0 .1 0* 23.2 21.1 110 TOGWOTEE PASS 9580 .0 .0 100* 51.5 40.1 128 TOWNSEND CREEK 8700 .0 .1 0* 26.6 25.0 106 ----- ----- Basin wide percent of average 7* 108 BIGHORN BASIN BALD MTN. 9380 .0 .2 0* 38.8 33.2 117 BEAR TRAP MEADOW 8200 .0 .1 0* 23.4 20.8 113 BLACKWATER 9780 .1 .3 33* 46.2 37.9 122 BONE SPRINGS DIV 9350 .1 .2 50* 36.1 31.5 115 EVENING STAR 9200 .2 .2 100* 59.3 43.7 136 GRAVE SPRINGS 8550 .2 .1 200* 24.9 22.4 111 KIRWIN 9550 .1 .3 33* 28.2 26.7 106 MARQUETTE 8760 .1 -M * 22.4 26.8 84 MIDDLE POWDER 7760 .2 .2 100* 26.4 25.7 103 OWL CREEK 8975 .0 .2 0* 16.3 17.6 93 POWDER RIVER PASS 9480 .0 .2 0* 34.5 26.9 128 SHELL CREEK 9580 .2 .4 50* 34.4 28.7 120 SYLVAN LAKE 8420 .0 .1 0* 48.7 36.7 133 SYLVAN ROAD 7120 .1 .0 * 35.4 29.9 118 TIMBER CREEK 7950 .0 .2 0* 19.4 21.5 90 YOUNTS PEAK 8350 .1 .1 100* 30.4 30.7 99 ----- ----- Basin wide percent of average 46* 114 SHOSHONE RIVER BLACKWATER 9780 .1 .3 33* 46.2 37.9 122 EVENING STAR 9200 .2 .2 100* 59.3 43.7 136 KIRWIN 9550 .1 .3 33* 28.2 26.7 106 MARQUETTE 8760 .1 -M * 22.4 26.8 84 SYLVAN LAKE 8420 .0 .1 0* 48.7 36.7 133 SYLVAN ROAD 7120 .1 .0 * 35.4 29.9 118 YOUNTS PEAK 8350 .1 .1 100* 30.4 30.7 99 ----- ----- Basin wide percent of average 60* 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .1 0* 23.4 20.8 113 BIG GOOSE 7990 .0 .0 100* 28.7 22.4 128 BONE SPRINGS DIV 9350 .1 .2 50* 36.1 31.5 115 BURGESS JUNCTION 7880 .2 .1 200* 30.8 26.0 118 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 36.5 30.5 120 DOME LAKE 8880 .0 .2 0* 31.7 28.4 112 GRAVE SPRINGS 8550 .2 .1 200* 24.9 22.4 111 HANSEN SAWMILL 8360 .0 .1 0* 25.0 21.8 115 LITTLE GOOSE 8870 .1 -M * 32.9 -M * MIDDLE POWDER 7760 .2 .2 100* 26.4 25.7 103 POWDER RIVER PASS 9480 .0 .2 0* 34.5 26.9 128 SOLDIER PARK 8720 .0 -M * 25.4 -M * SUCKER CREEK 8880 .0 .2 0* 36.6 29.5 124 TIE CREEK 6870 .0 .1 0* 29.9 24.5 122 ----- ----- Basin wide percent of average 47* 117 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 34.2 26.4 130 COLE CANYON 5910 .1 .0 * 32.8 22.3 147 NORTH RAPID CREEK 6130 .2 .0 * 32.6 24.7 132 ----- ----- Basin wide percent of average * 136 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 .1 -M * 65.7 -M * CINNABAR PARK 9574 .1 .0 * 53.2 33.8 157 COLUMBINE 9160 .0 .0 100* 54.6 37.6 145 DIVIDE PEAK 8880 .1 .0 * 46.1 32.9 140 ELK RIVER 8700 .0 .0 100* 43.7 31.9 137 JOE WRIGHT 10120 .0 .0 100* 64.4 44.1 146 NORTH FRENCH CREEK 10130 -M .0 * 82.4 41.9 197 OLD BATTLE 10000 .0 .0 100* 74.4 50.8 146 SAGE CREEK BASIN 7850 .0 .0 100* 28.6 19.1 150 SOUTH BRUSH CREEK 8440 .0 .0 100* 38.2 30.5 125 TOWER 10500 -M .0 * 93.1 57.6 162 WEBBER SPRINGS 9250 .0 .0 100* 56.5 41.1 137 WILLOW CREEK PASS 9540 .0 .0 100* 37.0 26.0 142 ----- ----- Basin wide percent of average * 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 51.3 38.0 135 CASPER MTN. 7900 .0 .0 100* 27.5 29.7 93 DEADMAN HILL 10220 .0 .0 100* 39.8 31.1 128 DEER PARK 9700 .0 .6 0* 38.4 37.5 102 LAPRELE CREEK 8375 .0 .0 100* 26.0 27.2 96 RENO HILL 8400 .0 .0 100* 31.0 30.8 101 ROACH 9700 .0 .0 100* 41.8 33.0 127 SAND LAKE 10050 .0 .0 100* 58.9 41.2 143 SOUTH PASS 9040 .0 .1 0* 29.1 31.5 92 WINDY PEAK 7900 .1 .0 * 22.9 23.4 98 ----- ----- Basin wide percent of average 14* 113 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * -M 25.0 * DIVIDE PEAK 8880 .1 .0 * 46.1 32.9 140 OLD BATTLE 10000 .0 .0 100* 74.4 50.8 146 SANDSTONE RS 8150 .0 .0 100* 43.8 30.4 144 WHISKEY PARK 8950 .0 .0 100* 67.1 44.3 151 ----- ----- Basin wide percent of average * 146 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* 29.3 24.3 121 BLIND BULL SUM 8650 .0 .0 100* 38.6 33.9 114 EAST RIM DIVIDE 7930 .2 .0 * 24.9 20.9 119 ELKHART PARK G.S. 9400 .0 .0 100* 25.8 25.8 100 GROS VENTRE SUMMIT 8750 .0 .0 100* 27.0 24.5 110 GUNSIGHT PASS 9820 .0 -M * 33.2 -M * KENDALL R.S. 7740 .0 .0 100* 26.2 23.7 111 LOOMIS PARK 8240 .1 .0 * 34.9 28.6 122 NEW FORK LAKE 8340 .3 .0 * 20.2 21.6 94 POCKET CREEK 9360 .0 -M * 27.9 -M * SNIDER BASIN 8060 .0 .0 100* 29.5 24.6 120 SPRING CREEK DIVIDE 9000 .2 .0 * 49.7 38.9 128 TRIPLE PEAK 8500 .0 .0 100* 53.1 38.0 140 ----- ----- Basin wide percent of average * 118 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 26.3 21.4 123 HEWINTA 9519 .0 .0 100* 36.0 27.3 132 HICKERSON PARK 9145 .0 .0 100* 26.5 19.0 139 HOLE-IN-ROCK 9150 .1 .0 * 28.6 19.0 151 INDIAN CREEK 9425 .2 .0 * 42.4 37.7 112 KELLEY R.S. 8180 .0 .0 100* 38.4 31.0 124 STEEL CREEK PARK 10200 .0 .1 0* 40.5 30.3 134 ----- ----- Basin wide percent of average 400* 129 UPPER BEAR RIVER BUG LAKE 7950 .0 .1 0* 46.2 29.9 155 HAYDEN FORK 9212 .0 .0 100* 49.6 35.1 141 KELLEY R.S. 8180 .0 .0 100* 38.4 31.0 124 LILY LAKE 9156 .0 .0 100* 41.1 30.2 136 MONTE CRISTO 8960 .0 .0 100* 59.7 39.7 150 SALT RIVER SUMMIT 7760 .1 .0 * 35.2 29.2 121 TRIAL LAKE 9992 .1 .2 50* 54.6 41.2 133 ----- ----- Basin wide percent of average 67* 137 ----------------------------------------------------------------------------- -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 1971-2000. 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.