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 SUNDAY: JUNE 21 , 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 28.8 28.5 101 COTTONWOOD CREEK 7670 .0 .0 100 45.8 37.3 123 GRAND TARGHEE 9260 28.9 -M * 49.9 -M * GRANITE CREEK 6770 .2 .0 30.1 26.2 115 GRASSY LAKE 7265 .0 .0 100 48.2 47.2 102 GROS VENTRE SUMMIT 8750 .1 .0 23.5 19.1 123 GUNSIGHT PASS 9820 2.3 -M * 26.3 -M * LEWIS LAKE DIVIDE 7850 .4 1.8 22 46.9 47.3 99 PHILLIPS BENCH 8200 .0 1.4 0 41.0 38.3 107 SALT RIVER SUMMIT 7760 .0 .0 100 26.7 25.1 106 SNAKE RIVER STATION 6920 .0 .0 100 33.0 30.0 110 SPRING CREEK DIVIDE 9000 .0 .8 0 38.7 34.3 113 THUMB DIVIDE 7980 .2 .0 31.6 26.2 121 TOGWOTEE PASS 9580 14.8 10.8 137 43.0 34.3 125 TWO OCEAN PLATEAU 9240 23.3 14.0 166 43.7 38.3 114 WILLOW CREEK 8380 .0 .0 100 57.4 44.5 129 ----- ----- Basin wide percent of average 134 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 11.1 8.1 137 31.3 28.9 108 BLACK BEAR 8170 6.1 9.7 63 49.8 52.6 95 CANYON 7870 .0 .1 0 25.2 22.0 115 FISHER CREEK 9100 -M 16.5 * 49.1 49.3 100 MADISON PLATEAU 7750 .1 .2 50 35.2 36.1 98 NORTHEAST ENTRANCE 7350 .2 .0 21.4 19.3 111 PARKER PEAK 9400 .2 7.3 3 28.6 25.2 113 SYLVAN LAKE 8420 .1 2.3 4 35.3 31.2 113 THUMB DIVIDE 7980 .2 .0 31.6 26.2 121 TWO OCEAN PLATEAU 9240 23.3 14.0 166 43.7 38.3 114 WHISKEY CREEK 6800 .2 .0 29.1 29.2 100 WHITE MILL 8700 2.8 7.2 39 35.4 37.4 95 WOLVERINE 7650 .0 .0 100 20.6 19.8 104 ----- ----- Basin wide percent of average 89 105 WIND RIVER BURROUGHS CREEK 8750 .0 .1 0 28.3 24.1 117 COLD SPRINGS 9630 .0 .0 100 19.5 18.8 104 DEER PARK 9700 .0 2.3 0 30.5 32.8 93 HOBBS PARK 10100 .0 3.1 0 25.8 22.7 114 LITTLE WARM 9370 .0 .0 100 25.2 21.5 117 SOUTH PASS 9040 .2 1.1 18 26.2 27.5 95 ST. LAWRENCE ALT 8620 .1 .0 18.3 16.9 108 TOGWOTEE PASS 9580 14.8 10.8 137 43.0 34.3 125 TOWNSEND CREEK 8700 .0 .0 100 22.2 20.4 109 ----- ----- Basin wide percent of average 86 109 BIGHORN BASIN BALD MTN. 9380 .7 5.3 13 25.3 27.4 92 BEAR TRAP MEADOW 8200 .1 .0 16.3 16.2 101 BLACKWATER 9780 15.8 13.9 114 35.9 31.3 115 BONE SPRINGS DIV 9350 .0 1.2 0 24.2 24.6 98 EVENING STAR 9200 7.2 12.9 56 43.8 36.8 119 GRAVE SPRINGS 8550 .0 .0 100 14.8 17.9 83 KIRWIN 9550 .1 .4 25 24.9 19.6 127 MARQUETTE 8760 .0 .5 0 16.9 20.3 83 MIDDLE POWDER 7760 .0 .0 100 17.0 21.0 81 OWL CREEK 8975 .1 .0 15.9 12.9 123 POWDER RIVER PASS 9480 .0 .0 100 24.6 21.7 113 SHELL CREEK 9580 .5 2.1 24 25.6 22.9 112 SYLVAN LAKE 8420 .1 2.3 4 35.3 31.2 113 SYLVAN ROAD 7120 .1 .0 29.5 25.0 118 TIMBER CREEK 7950 .2 .0 16.7 16.1 104 YOUNTS PEAK 8350 .0 .2 0 25.1 23.8 105 ----- ----- Basin wide percent of average 63 106 SHOSHONE RIVER BLACKWATER 9780 15.8 13.9 114 35.9 31.3 115 EVENING STAR 9200 7.2 12.9 56 43.8 36.8 119 KIRWIN 9550 .1 .4 25 24.9 19.6 127 MARQUETTE 8760 .0 .5 0 16.9 20.3 83 SYLVAN LAKE 8420 .1 2.3 4 35.3 31.2 113 SYLVAN ROAD 7120 .1 .0 29.5 25.0 118 YOUNTS PEAK 8350 .0 .2 0 25.1 23.8 105 ----- ----- Basin wide percent of average 77 112 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .0 16.3 16.2 101 BIG GOOSE 7990 .1 .0 19.8 17.6 112 BONE SPRINGS DIV 9350 .0 1.2 0 24.2 24.6 98 BURGESS JUNCTION 7880 .0 .0 100 19.8 20.4 97 CLOUD PEAK RESERVOIR 9860 .0 1.3 0 26.4 24.0 110 DOME LAKE 8880 .0 .1 0 24.1 22.5 107 GRAVE SPRINGS 8550 .0 .0 100 14.8 17.9 83 HANSEN SAWMILL 8360 .0 .0 100 16.8 16.3 103 MIDDLE POWDER 7760 .0 .0 100 17.0 21.0 81 POWDER RIVER PASS 9480 .0 .0 100 24.6 21.7 113 SUCKER CREEK 8880 .0 .1 0 26.7 23.7 113 TIE CREEK 6870 .0 .0 100 22.9 19.4 118 ----- ----- Basin wide percent of average 0 103 BELLE FOURCHE BLIND PARK 6890 .2 .0 22.2 20.1 110 COLE CANYON 5910 .0 .0 100 19.4 15.4 126 NORTH RAPID CREEK 6130 .1 .0 18.5 16.7 111 ----- ----- Basin wide percent of average * 115 UPPER N. PLATTE RIVER COLUMBINE 9160 -M .0 * 36.2 33.3 109 DIVIDE PEAK 8880 .0 .0 100 37.7 28.6 132 ELK RIVER 8700 -M .0 * 30.8 27.2 113 JOE WRIGHT 10120 .2 4.7 4 39.6 36.6 108 NORTH FRENCH CREEK 10130 -M 8.9 * -M 36.0 * OLD BATTLE 10000 11.2 8.8 127 52.6 45.7 115 SAGE CREEK BASIN 7850 .0 .0 100 22.8 16.6 137 SOUTH BRUSH CREEK 8440 .0 .0 100 25.6 25.0 102 TOWER 10500 12.1 20.5 59 56.0 51.7 108 WEBBER SPRINGS 9250 .0 .5 0 40.1 35.9 112 WILLOW CREEK PASS 9540 .0 .1 0 20.8 20.4 102 ----- ----- Basin wide percent of average 68 113 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 2.4 4 32.4 32.6 99 CASPER MTN. 7900 .0 .6 0 23.9 25.7 93 DEADMAN HILL 10220 .0 2.2 0 25.8 26.0 99 DEER PARK 9700 .0 2.3 0 30.5 32.8 93 LAPRELE CREEK 8375 .0 .0 100 20.9 21.6 97 RENO HILL 8400 .0 .2 0 26.0 26.2 99 ROACH 9700 .1 .7 14 28.7 27.9 103 SAND LAKE 10050 8.1 9.2 88 43.0 36.0 119 SOUTH PASS 9040 .2 1.1 18 26.2 27.5 95 WINDY PEAK 7900 -M .0 * 18.9 18.6 102 ----- ----- Basin wide percent of average 45 101 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 27.1 21.9 124 DIVIDE PEAK 8880 .0 .0 100 37.7 28.6 132 OLD BATTLE 10000 11.2 8.8 127 52.6 45.7 115 SANDSTONE RS 8150 -M .0 * 29.8 25.9 115 WHISKEY PARK 8950 -M 1.6 * 46.0 39.3 117 ----- ----- Basin wide percent of average 127 120 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 24.4 19.9 123 BLIND BULL SUM 8650 2.3 5.7 40 31.0 29.4 105 EAST RIM DIVIDE 7930 .0 .0 100 20.2 17.2 117 ELKHART PARK G.S. 9400 -M .0 * 25.4 20.5 124 GROS VENTRE SUMMIT 8750 .1 .0 23.5 19.1 123 GUNSIGHT PASS 9820 2.3 -M * 26.3 -M * KENDALL R.S. 7740 .1 .0 21.8 19.7 111 LOOMIS PARK 8240 .1 .0 28.9 23.6 122 NEW FORK LAKE 8340 1.7 .0 19.7 17.2 115 SNIDER BASIN 8060 .0 .0 100 22.3 21.3 105 SPRING CREEK DIVIDE 9000 .0 .8 0 38.7 34.3 113 TRIPLE PEAK 8500 .2 .0 39.0 33.3 117 ----- ----- Basin wide percent of average 35* 115 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 21.2 18.1 117 HEWINTA 9519 .0 .0 100 20.0 21.4 93 HICKERSON PARK 9145 .0 .0 100 17.1 13.6 126 HOLE-IN-ROCK 9150 .0 .0 100 15.3 13.4 114 INDIAN CREEK 9425 .0 2.1 0 32.6 33.7 97 KELLEY R.S. 8180 .0 .0 100 28.7 27.4 105 STEEL CREEK PARK 10200 .0 2.8 0 24.4 24.5 100 ----- ----- Basin wide percent of average 0 105 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 25.9 26.2 99 HAYDEN FORK 9212 .1 .0 31.6 29.8 106 KELLEY R.S. 8180 .0 .0 100 28.7 27.4 105 LILY LAKE 9156 .0 .0 100 26.0 25.4 102 MONTE CRISTO 8960 .0 1.7 0 38.0 35.4 107 SALT RIVER SUMMIT 7760 .0 .0 100 26.7 25.1 106 TRIAL LAKE 9992 .2 4.0 5 35.5 34.9 102 ----- ----- Basin wide percent of average 4 104 ----------------------------------------------------------------------------- -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.