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: JUNE 23 , 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 29.2 28.6 102 COTTONWOOD CREEK 7670 .0 .0 100 46.1 37.4 123 GRAND TARGHEE 9260 27.1 -M * 50.6 -M * GRANITE CREEK 6770 .1 .0 30.4 26.3 116 GRASSY LAKE 7265 .0 .0 100 48.5 47.4 102 GROS VENTRE SUMMIT 8750 .0 .0 100 23.8 19.2 124 GUNSIGHT PASS 9820 2.2 -M * 26.4 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 47.4 47.4 100 PHILLIPS BENCH 8200 .0 .0 100 41.1 38.4 107 SALT RIVER SUMMIT 7760 .0 .0 100 26.9 25.2 107 SNAKE RIVER STATION 6920 .0 .0 100 33.2 30.1 110 SPRING CREEK DIVIDE 9000 .0 .0 100 39.1 34.4 114 THUMB DIVIDE 7980 .0 .0 100 31.8 26.3 121 TOGWOTEE PASS 9580 13.4 9.4 143 43.0 34.4 125 TWO OCEAN PLATEAU 9240 20.2 12.6 160 43.9 38.4 114 WILLOW CREEK 8380 .0 .0 100 57.5 44.6 129 ----- ----- Basin wide percent of average 153 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 9.3 6.8 137 31.5 29.0 109 BLACK BEAR 8170 3.3 8.0 41 50.6 52.8 96 CANYON 7870 .0 .0 100 25.7 22.1 116 FISHER CREEK 9100 12.4 14.4 86 49.8 49.5 101 MADISON PLATEAU 7750 .0 .1 0 35.6 36.2 98 NORTHEAST ENTRANCE 7350 .0 .0 100 21.8 19.5 112 PARKER PEAK 9400 .0 6.0 0 28.7 25.4 113 SYLVAN LAKE 8420 .0 1.6 0 35.8 31.4 114 THUMB DIVIDE 7980 .0 .0 100 31.8 26.3 121 TWO OCEAN PLATEAU 9240 20.2 12.6 160 43.9 38.4 114 WHISKEY CREEK 6800 .0 .0 100 29.2 29.3 100 WHITE MILL 8700 1.3 6.0 22 36.0 37.6 96 WOLVERINE 7650 .0 .0 100 20.8 19.9 105 ----- ----- Basin wide percent of average 84 106 WIND RIVER BURROUGHS CREEK 8750 .0 .1 0 28.6 24.3 118 COLD SPRINGS 9630 .0 .0 100 19.6 18.9 104 DEER PARK 9700 .0 1.0 0 30.7 33.0 93 HOBBS PARK 10100 .0 2.5 0 25.9 22.9 113 LITTLE WARM 9370 .0 .0 100 25.4 21.7 117 SOUTH PASS 9040 .0 .6 0 26.3 27.6 95 ST. LAWRENCE ALT 8620 .0 .0 100 18.4 17.0 108 TOGWOTEE PASS 9580 13.4 9.4 143 43.0 34.4 125 TOWNSEND CREEK 8700 .0 .0 100 22.3 20.5 109 ----- ----- Basin wide percent of average 99 109 BIGHORN BASIN BALD MTN. 9380 .0 4.2 0 25.1 27.5 91 BEAR TRAP MEADOW 8200 .0 .0 100 16.4 16.3 101 BLACKWATER 9780 13.3 12.4 107 36.1 31.5 115 BONE SPRINGS DIV 9350 .0 .7 0 24.2 24.8 98 EVENING STAR 9200 8.4 11.5 73 44.0 37.0 119 GRAVE SPRINGS 8550 .0 .0 100 14.8 18.0 82 KIRWIN 9550 .0 .2 0 25.1 19.7 127 MARQUETTE 8760 .0 .4 0 16.8 20.5 82 MIDDLE POWDER 7760 .0 .0 100 17.1 21.1 81 OWL CREEK 8975 .0 .0 100 15.9 13.0 122 POWDER RIVER PASS 9480 .0 .0 100 24.5 21.9 112 SHELL CREEK 9580 .0 1.4 0 25.7 23.1 111 SYLVAN LAKE 8420 .0 1.6 0 35.8 31.4 114 SYLVAN ROAD 7120 .0 .0 100 29.8 25.2 118 TIMBER CREEK 7950 .0 .0 100 16.8 16.2 104 YOUNTS PEAK 8350 .0 .1 0 25.3 24.0 105 ----- ----- Basin wide percent of average 67 106 SHOSHONE RIVER BLACKWATER 9780 13.3 12.4 107 36.1 31.5 115 EVENING STAR 9200 8.4 11.5 73 44.0 37.0 119 KIRWIN 9550 .0 .2 0 25.1 19.7 127 MARQUETTE 8760 .0 .4 0 16.8 20.5 82 SYLVAN LAKE 8420 .0 1.6 0 35.8 31.4 114 SYLVAN ROAD 7120 .0 .0 100 29.8 25.2 118 YOUNTS PEAK 8350 .0 .1 0 25.3 24.0 105 ----- ----- Basin wide percent of average 83 112 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 16.4 16.3 101 BIG GOOSE 7990 .0 .0 100 19.8 17.7 112 BONE SPRINGS DIV 9350 .0 .7 0 24.2 24.8 98 BURGESS JUNCTION 7880 .0 .0 100 19.9 20.6 97 CLOUD PEAK RESERVOIR 9860 .0 .9 0 26.3 24.2 109 DOME LAKE 8880 .0 .0 100 24.1 22.7 106 GRAVE SPRINGS 8550 .0 .0 100 14.8 18.0 82 HANSEN SAWMILL 8360 .0 .0 100 16.8 16.5 102 MIDDLE POWDER 7760 .0 .0 100 17.1 21.1 81 POWDER RIVER PASS 9480 .0 .0 100 24.5 21.9 112 SUCKER CREEK 8880 .0 .0 100 26.7 23.9 112 TIE CREEK 6870 .0 .0 100 22.9 19.6 117 ----- ----- Basin wide percent of average 0 103 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 22.2 20.3 109 COLE CANYON 5910 .0 .0 100 19.4 15.6 124 NORTH RAPID CREEK 6130 .0 .0 100 18.5 16.9 109 ----- ----- Basin wide percent of average * 114 UPPER N. PLATTE RIVER COLUMBINE 9160 -M .0 * 36.1 33.3 108 DIVIDE PEAK 8880 .0 .0 100 38.1 28.7 133 ELK RIVER 8700 -M .0 * 31.3 27.3 115 JOE WRIGHT 10120 .1 3.8 3 39.5 36.7 108 NORTH FRENCH CREEK 10130 -M 7.5 * -M 36.1 * OLD BATTLE 10000 7.6 7.0 109 52.9 45.8 116 SAGE CREEK BASIN 7850 .0 .0 100 23.0 16.7 138 SOUTH BRUSH CREEK 8440 .0 .0 100 26.0 25.2 103 TOWER 10500 8.2 18.1 45 56.1 51.9 108 WEBBER SPRINGS 9250 .0 .3 0 40.8 36.0 113 WILLOW CREEK PASS 9540 .0 .0 100 20.5 20.6 100 ----- ----- Basin wide percent of average 54 113 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 1.9 0 32.8 32.7 100 CASPER MTN. 7900 .0 .5 0 23.9 25.8 93 DEADMAN HILL 10220 .0 1.7 0 25.5 26.1 98 DEER PARK 9700 .0 1.0 0 30.7 33.0 93 LAPRELE CREEK 8375 .0 .0 100 20.9 21.7 96 RENO HILL 8400 .0 .0 100 26.1 26.3 99 ROACH 9700 .1 .5 20 28.8 28.0 103 SAND LAKE 10050 4.1 7.7 53 43.3 36.2 120 SOUTH PASS 9040 .0 .6 0 26.3 27.6 95 WINDY PEAK 7900 -M .0 * 19.1 18.7 102 ----- ----- Basin wide percent of average 30 100 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 27.3 22.0 124 DIVIDE PEAK 8880 .0 .0 100 38.1 28.7 133 OLD BATTLE 10000 7.6 7.0 109 52.9 45.8 116 SANDSTONE RS 8150 -M .0 * 30.0 26.0 115 WHISKEY PARK 8950 -M 1.1 * 46.4 39.4 118 ----- ----- Basin wide percent of average 109 120 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 24.5 20.0 123 BLIND BULL SUM 8650 .0 4.3 0 31.2 29.5 106 EAST RIM DIVIDE 7930 .0 .0 100 20.4 17.3 118 ELKHART PARK G.S. 9400 -M .0 * 25.9 20.6 126 GROS VENTRE SUMMIT 8750 .0 .0 100 23.8 19.2 124 GUNSIGHT PASS 9820 2.2 -M * 26.4 -M * KENDALL R.S. 7740 .0 .0 100 22.4 19.8 113 LOOMIS PARK 8240 .0 .0 100 29.3 23.7 124 NEW FORK LAKE 8340 -M .0 * 19.8 17.3 114 SNIDER BASIN 8060 .0 .0 100 22.4 21.4 105 SPRING CREEK DIVIDE 9000 .0 .0 100 39.1 34.4 114 TRIPLE PEAK 8500 .0 .0 100 39.1 33.4 117 ----- ----- Basin wide percent of average 0 116 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 21.5 18.2 118 HEWINTA 9519 .0 .0 100 20.0 21.5 93 HICKERSON PARK 9145 .0 .0 100 17.2 13.7 126 HOLE-IN-ROCK 9150 .0 .0 100 15.4 13.5 114 INDIAN CREEK 9425 .0 .7 0 32.6 33.8 96 KELLEY R.S. 8180 .0 .0 100 28.7 27.4 105 STEEL CREEK PARK 10200 .0 2.2 0 24.4 24.6 99 ----- ----- Basin wide percent of average 0 105 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 25.9 26.3 98 HAYDEN FORK 9212 .0 .0 100 31.6 29.9 106 KELLEY R.S. 8180 .0 .0 100 28.7 27.4 105 LILY LAKE 9156 .0 .0 100 25.9 25.5 102 MONTE CRISTO 8960 .0 1.0 0 38.0 35.4 107 SALT RIVER SUMMIT 7760 .0 .0 100 26.9 25.2 107 TRIAL LAKE 9992 .1 3.1 3 35.6 35.0 102 ----- ----- Basin wide percent of average 2 104 ----------------------------------------------------------------------------- -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.