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 SATURDAY: MARCH 10 , 2012 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 19.0 16.9 112 22.1 19.6 113 BLACK BEAR 8170 31.3 35.5 88 31.7 35.6 89 BLIND BULL SUM 8650 21.0 24.8 85 16.2 20.0 81 COTTONWOOD CREEK 7670 18.0 20.4 88 22.9 24.4 94 EAST RIM DIVIDE 7930 10.9 11.8 92 11.0 10.8 102 GRAND TARGHEE 9260 32.1 -M * 25.8 -M * GRANITE CREEK 6770 15.2 17.3 88 15.8 18.3 86 GRASSY LAKE 7265 29.9 31.6 95 33.1 32.7 101 GROS VENTRE SUMMIT 8750 9.0 12.4 73 9.6 11.4 84 GUNSIGHT PASS 9820 11.6 -M * 12.2 -M * LEWIS LAKE DIVIDE 7850 27.6 31.7 87 30.6 33.3 92 PHILLIPS BENCH 8200 21.9 25.6 86 23.4 26.1 90 SALT RIVER SUMMIT 7760 10.5 12.9 81 11.1 16.7 66 SNAKE RIVER STATION 6920 17.9 17.7 101 22.6 20.4 111 SPRING CREEK DIVIDE 9000 21.4 23.6 91 21.3 23.7 90 THUMB DIVIDE 7980 14.3 16.7 86 15.0 17.0 88 TOGWOTEE PASS 9580 19.7 22.0 90 21.5 21.9 98 TWO OCEAN PLATEAU 9240 29.5 24.8 119 24.9 24.8 100 WILLOW CREEK 8380 24.3 27.1 90 29.0 28.7 101 YOUNTS PEAK 8350 15.3 15.5 99 14.7 14.4 102 ----- ----- Basin wide percent of average 92 94 MADISON-GALLATIN BLACK BEAR 8170 31.3 35.5 88 31.7 35.6 89 CANYON 7870 11.0 12.3 89 12.7 13.8 92 MADISON PLATEAU 7750 19.7 22.5 88 23.3 23.5 99 WEST YELLOWSTONE 6700 10.7 11.9 90 13.3 11.6 115 WHISKEY CREEK 6800 13.9 15.6 89 17.3 18.5 94 ----- ----- Basin wide percent of average 89 95 YELLOWSTONE BEARTOOTH LAKE 9360 22.4 21.3 105 21.8 18.1 120 BURNT MTN 5880 5.9 5.5 107 10.5 12.2 86 CANYON 7870 11.0 12.3 89 12.7 13.8 92 COLE CREEK 7850 13.2 13.0 102 10.6 13.3 80 EVENING STAR 9200 26.5 26.7 99 28.4 22.9 124 FISHER CREEK 9100 30.1 31.5 96 29.0 32.5 89 NORTHEAST ENTRANCE 7350 9.8 10.4 94 -M 11.4 * PARKER PEAK 9400 20.3 19.4 105 20.1 14.5 139 SYLVAN LAKE 8420 16.7 20.1 83 21.6 18.8 115 THUMB DIVIDE 7980 14.3 16.7 86 15.0 17.0 88 TWO OCEAN PLATEAU 9240 29.5 24.8 119 24.9 24.8 100 WHITE MILL 8700 19.6 21.8 90 20.4 24.1 85 WOLVERINE 7650 12.4 11.2 111 12.0 11.7 103 ----- ----- Basin wide percent of average 99 101 WIND RIVER BURROUGHS CREEK 8750 13.5 13.4 101 13.9 14.5 96 CASTLE CREEK 8400 7.6 -M * 8.4 -M * COLD SPRINGS 9630 8.0 7.8 103 9.1 8.9 102 DEER PARK 9700 10.9 15.1 72 16.3 19.1 85 HOBBS PARK 10100 13.6 12.8 106 12.5 10.6 118 KIRWIN 9550 11.5 9.9 116 13.4 9.7 138 LITTLE WARM 9370 8.0 10.3 78 10.2 11.5 89 OWL CREEK 8975 5.0 4.5 111 5.4 4.7 115 SOUTH PASS 9040 13.2 15.1 87 13.0 15.9 82 ST. LAWRENCE ALT 8620 5.0 6.4 78 7.1 7.4 96 TOGWOTEE PASS 9580 19.7 22.0 90 21.5 21.9 98 TOWNSEND CREEK 8700 8.2 7.5 109 10.9 9.5 115 ----- ----- Basin wide percent of average 93 100 BIGHORN BASIN BALD MTN. 9380 19.6 17.0 115 14.3 15.0 95 BEAR TRAP MEADOW 8200 8.6 4.8 179 8.4 6.8 124 BONE SPRINGS DIV 9350 18.7 14.0 134 14.6 12.4 118 GRAVE SPRINGS 8550 8.4 7.9 106 9.7 8.4 115 KIRWIN 9550 11.5 9.9 116 13.4 9.7 138 MARQUETTE 8760 9.0 -M * 11.2 8.0 140 MIDDLE POWDER 7760 10.2 9.7 105 10.4 10.3 101 OWL CREEK 8975 5.0 4.5 111 5.4 4.7 115 POWDER RIVER PASS 9480 11.9 9.4 127 13.9 10.6 131 SHELL CREEK 9580 17.1 12.6 136 15.0 11.4 132 TIMBER CREEK 7950 4.9 4.6 107 8.4 5.8 145 ----- ----- Basin wide percent of average 123 121 SHOSHONE RIVER BLACKWATER 9780 22.6 21.9 103 22.4 18.2 123 EVENING STAR 9200 26.5 26.7 99 28.4 22.9 124 MARQUETTE 8760 9.0 -M * 11.2 8.0 140 SYLVAN ROAD 7120 12.7 12.0 106 16.5 16.2 102 YOUNTS PEAK 8350 15.3 15.5 99 14.7 14.4 102 ----- ----- Basin wide percent of average 101 117 POWDER RIVER BEAR TRAP MEADOW 8200 8.6 4.8 179 8.4 6.8 124 CLOUD PEAK RESERVOIR 9860 15.9 11.0 145 14.5 10.5 138 GRAVE SPRINGS 8550 8.4 7.9 106 9.7 8.4 115 HANSEN SAWMILL 8360 6.2 5.6 111 8.3 6.8 122 MIDDLE POWDER 7760 10.2 9.7 105 10.4 10.3 101 POWDER RIVER PASS 9480 11.9 9.4 127 13.9 10.6 131 SOLDIER PARK 8720 13.1 -M * 9.6 -M * ----- ----- Basin wide percent of average 126 122 TONGUE RIVER BIG GOOSE 7990 9.7 8.3 117 13.5 7.1 190 BONE SPRINGS DIV 9350 18.7 14.0 134 14.6 12.4 118 BURGESS JUNCTION 7880 11.8 9.6 123 13.8 10.2 135 DOME LAKE 8880 14.3 10.2 140 14.3 10.9 131 LITTLE GOOSE 8870 10.8 -M * 15.4 -M * SUCKER CREEK 8880 14.1 9.8 144 14.6 11.3 129 TIE CREEK 6870 7.1 5.7 125 13.3 8.3 160 ----- ----- Basin wide percent of average 131 140 BELLE FOURCHE COLE CANYON 5910 6.7 6.0 112 8.2 5.8 141 ----- ----- Basin wide percent of average 112 141 CHEYENNE RIVER BASIN BLIND PARK 6890 8.6 7.9 109 9.9 9.8 101 NORTH RAPID CREEK 6130 7.8 7.2 108 7.7 7.8 99 ----- ----- Basin wide percent of average 109 100 UPPER N. PLATTE ARAPAHOE 4020 -M -M * -M -M * BLACKHALL MTN 9820 21.3 -M * 22.8 -M * COLUMBINE 9160 18.8 23.2 81 19.2 22.2 86 DIVIDE PEAK 8880 14.1 16.9 83 18.0 18.2 99 JOE WRIGHT 10120 13.2 18.4 72 18.2 21.5 85 LAPRELE CREEK 8375 8.9 9.6 93 11.5 10.7 107 NORTH FRENCH CREEK 10130 19.1 24.4 78 18.7 21.5 87 NEVER SUMMER 10280 11.6 17.5 66 10.7 20.4 52 OLD BATTLE 10000 21.9 28.2 78 25.7 30.4 85 RAWAH 9020 8.1 13.0 62 10.5 14.1 74 SAGE CREEK BASIN 7850 14.2 9.8 145 9.8 10.5 93 SAND LAKE 10050 22.8 27.4 83 22.4 20.6 109 SOUTH BRUSH CREEK 8440 8.0 11.0 73 10.8 14.1 77 TOWER 10500 28.7 39.9 72 29.6 34.0 87 WEBBER SPRINGS 9250 16.8 23.3 72 20.2 23.4 86 WILLOW CREEK PASS 9540 -M 10.3 * 9.2 11.0 84 ZIRKEL 9340 24.1 23.9 101 24.0 22.9 105 ----- ----- Basin wide percent of average 80 87 SWEETWATER DEER PARK 9700 10.9 15.1 72 16.3 19.1 85 LARSEN CREEK 9000 11.1 -M * 12.6 -M * SOUTH PASS 9040 13.2 15.1 87 13.0 15.9 82 ----- ----- Basin wide percent of average 80 84 LOWER N. PLATTE CASPER MTN. 7900 18.0 12.1 149 17.1 11.9 144 LAPRELE CREEK 8375 8.9 9.6 93 11.5 10.7 107 RENO HILL 8400 15.1 11.4 132 16.7 12.3 136 WINDY PEAK 7900 6.9 6.7 103 8.6 9.0 96 ----- ----- Basin wide percent of average 123 123 LARAMIE RIVER BROOKLYN LAKE 10240 17.1 20.3 84 18.4 18.7 98 CINNABAR PARK 9574 14.6 16.7 87 19.4 18.0 108 CROW CREEK 8330 7.7 7.8 99 10.0 8.4 119 DEADMAN HILL 10220 16.2 13.8 117 15.1 14.3 106 RAWAH 9020 8.1 13.0 62 10.5 14.1 74 ROACH 9700 12.7 14.8 86 15.8 16.0 99 ----- ----- Basin wide percent of average 88 100 S. PLATTE BLACK MOUNTAIN 8920 10.0 -M * 12.3 -M * CROW CREEK 8330 7.7 7.8 99 10.0 8.4 119 DEADMAN HILL 10220 16.2 13.8 117 15.1 14.3 106 ----- ----- Basin wide percent of average 111 111 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.8 10.7 110 10.9 13.3 82 DIVIDE PEAK 8880 14.1 16.9 83 18.0 18.2 99 ELK RIVER 8700 14.8 17.2 86 14.7 17.2 85 LITTLE SNAKE RIVER 8915 19.6 -M * 23.4 -M * OLD BATTLE 10000 21.9 28.2 78 25.7 30.4 85 SAGE CREEK BASIN 7850 14.2 9.8 145 9.8 10.5 93 SANDSTONE RS 8150 10.9 13.6 80 12.0 16.7 72 WHISKEY PARK 8950 21.3 26.0 82 23.4 24.9 94 ----- ----- Basin wide percent of average 89 87 UPPER GREEN RIVER BIG SANDY OPENING 9080 12.3 12.9 95 12.2 12.0 102 BLIND BULL SUM 8650 21.0 24.8 85 16.2 20.0 81 EAST RIM DIVIDE 7930 10.9 11.8 92 11.0 10.8 102 ELKHART PARK G.S. 9400 12.2 11.9 103 13.1 11.6 113 GROS VENTRE SUMMIT 8750 9.0 12.4 73 9.6 11.4 84 GUNSIGHT PASS 9820 11.6 -M * 12.2 -M * KENDALL R.S. 7740 14.3 13.4 107 14.6 13.3 110 LOOMIS PARK 8240 13.4 15.6 86 15.5 15.7 99 NEW FORK LAKE 8340 11.0 10.2 108 10.1 10.1 100 POCKET CREEK 9360 9.2 -M * 11.3 -M * SNIDER BASIN 8060 12.5 13.2 95 12.5 14.5 86 SPRING CREEK DIVIDE 9000 21.4 23.6 91 21.3 23.7 90 TRIPLE PEAK 8500 21.5 22.3 96 23.9 22.1 108 ----- ----- Basin wide percent of average 93 97 LOWER GREEN RIVER BLACKS FORK JCT 8870 5.1 -M * 9.7 -M * BUCK PASTURE 9700 .1 -M * 3.3 -M * EF BLACKS FORK GS 9308 9.4 -M * 8.6 -M * HAMS FORK 7840 10.2 11.8 86 8.8 11.0 80 HEWINTA 9519 8.6 9.9 87 11.1 12.4 90 HICKERSON PARK 9145 8.7 6.2 140 10.9 6.7 163 HOLE-IN-ROCK 9150 7.5 6.1 123 10.7 6.2 173 INDIAN CREEK 9425 18.6 24.1 77 16.7 22.4 75 KELLEY R.S. 8180 12.0 15.0 80 14.0 18.1 77 SPIRIT LK 10223 9.9 -M * 15.2 -M * STEEL CREEK PARK 10200 -M 13.6 * 12.7 13.7 93 ----- ----- Basin wide percent of average 90 94 UPPER BEAR RIVER BEAR RIVER RS 8500 6.8 -M * 9.1 -M * BUG LAKE 7950 13.9 18.4 76 14.5 17.1 85 BURTS MILLER RANCH 8000 5.8 -M * 9.3 -M * CHALK CREEK #1 8993 14.4 21.5 67 16.8 22.1 76 HAYDEN FORK 9212 11.1 14.3 78 15.7 18.2 86 KELLEY R.S. 8180 12.0 15.0 80 14.0 18.1 77 LILY LAKE 9156 9.1 11.5 79 10.8 15.1 72 MONTE CRISTO 8960 17.7 26.6 67 17.5 22.5 78 SALT RIVER SUMMIT 7760 10.5 12.9 81 11.1 16.7 66 ----- ----- Basin wide percent of average 74 77 ----------------------------------------------------------------------------- -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.