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: FEBRUARY 12 , 2012 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.7 14.1 104 17.7 16.3 109 COTTONWOOD CREEK 7670 13.0 15.6 83 17.8 20.2 88 EAST RIM DIVIDE 7930 8.5 9.5 89 9.2 8.8 105 GRAND TARGHEE 9260 23.2 -M * 19.8 -M * GRANITE CREEK 6770 11.1 13.8 80 12.0 15.1 79 GRASSY LAKE 7265 21.5 25.6 84 25.7 27.3 94 GROS VENTRE SUMMIT 8750 7.3 10.2 72 8.1 9.4 86 GUNSIGHT PASS 9820 8.8 -M * 9.8 -M * LEWIS LAKE DIVIDE 7850 20.0 25.7 78 24.9 27.3 91 PHILLIPS BENCH 8200 16.8 20.6 82 18.6 21.4 87 SALT RIVER SUMMIT 7760 7.9 10.5 75 8.7 13.8 63 SNAKE RIVER STATION 6920 13.1 14.2 92 17.8 17.1 104 SPRING CREEK DIVIDE 9000 15.3 19.2 80 15.9 19.9 80 THUMB DIVIDE 7980 10.8 13.1 82 12.4 13.9 89 TOGWOTEE PASS 9580 14.8 18.4 80 16.7 18.2 92 TWO OCEAN PLATEAU 9240 24.1 20.7 116 20.2 20.3 100 WILLOW CREEK 8380 17.4 22.2 78 22.6 23.7 95 ----- ----- Basin wide percent of average 85 91 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.0 17.6 97 16.6 15.2 109 BLACK BEAR 8170 23.5 28.0 84 24.8 28.7 86 CANYON 7870 8.5 9.8 87 10.1 11.6 87 FISHER CREEK 9100 23.5 25.8 91 23.2 26.8 87 MADISON PLATEAU 7750 14.0 17.7 79 17.8 19.2 93 NORTHEAST ENTRANCE 7350 6.4 8.5 75 -M 9.6 * PARKER PEAK 9400 15.9 15.9 100 16.5 12.1 136 SYLVAN LAKE 8420 12.4 16.2 77 17.2 16.0 108 THUMB DIVIDE 7980 10.8 13.1 82 12.4 13.9 89 TWO OCEAN PLATEAU 9240 24.1 20.7 116 20.2 20.3 100 WHISKEY CREEK 6800 9.6 12.2 79 12.8 15.1 85 WHITE MILL 8700 14.7 17.6 84 16.0 19.9 80 WOLVERINE 7650 9.4 9.3 101 9.6 9.9 97 ----- ----- Basin wide percent of average 89 94 WIND RIVER BURROUGHS CREEK 8750 10.1 10.9 93 10.4 12.2 85 CASTLE CREEK 8400 5.6 -M * 6.5 -M * COLD SPRINGS 9630 5.8 6.3 92 6.8 7.6 89 DEER PARK 9700 8.2 13.1 63 12.8 15.9 81 HOBBS PARK 10100 10.9 10.3 106 10.5 8.8 119 LITTLE WARM 9370 5.5 8.3 66 7.7 9.8 79 SOUTH PASS 9040 10.2 12.0 85 10.2 13.4 76 ST. LAWRENCE ALT 8620 4.3 5.1 84 6.0 6.2 97 TOGWOTEE PASS 9580 14.8 18.4 80 16.7 18.2 92 TOWNSEND CREEK 8700 6.5 6.0 108 9.0 7.9 114 ----- ----- Basin wide percent of average 84 90 BIGHORN BASIN BALD MTN. 9380 12.8 14.2 90 9.8 12.6 78 BEAR TRAP MEADOW 8200 4.8 3.8 126 5.8 5.8 100 BLACKWATER 9780 17.7 17.7 100 17.6 15.3 115 BONE SPRINGS DIV 9350 13.6 11.4 119 10.9 10.3 106 EVENING STAR 9200 20.1 21.7 93 21.9 19.2 114 GRAVE SPRINGS 8550 6.0 6.3 95 7.5 6.8 110 KIRWIN 9550 9.1 8.1 112 10.9 8.2 133 MARQUETTE 8760 6.5 -M * 10.3 6.6 156 MIDDLE POWDER 7760 7.4 7.9 94 8.3 8.7 95 OWL CREEK 8975 3.5 3.6 97 4.1 4.0 102 POWDER RIVER PASS 9480 7.0 7.7 91 8.6 8.9 97 SHELL CREEK 9580 11.2 10.5 107 9.6 9.9 97 SYLVAN LAKE 8420 12.4 16.2 77 17.2 16.0 108 SYLVAN ROAD 7120 9.4 9.7 97 12.9 14.2 91 TIMBER CREEK 7950 4.1 3.9 105 7.6 4.8 158 YOUNTS PEAK 8350 12.0 12.8 94 11.8 12.2 97 ----- ----- Basin wide percent of average 97 107 SHOSHONE RIVER BLACKWATER 9780 17.7 17.7 100 17.6 15.3 115 EVENING STAR 9200 20.1 21.7 93 21.9 19.2 114 KIRWIN 9550 9.1 8.1 112 10.9 8.2 133 MARQUETTE 8760 6.5 -M * 10.3 6.6 156 SYLVAN LAKE 8420 12.4 16.2 77 17.2 16.0 108 SYLVAN ROAD 7120 9.4 9.7 97 12.9 14.2 91 YOUNTS PEAK 8350 12.0 12.8 94 11.8 12.2 97 ----- ----- Basin wide percent of average 94 112 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.8 3.8 126 5.8 5.8 100 BIG GOOSE 7990 7.5 6.6 114 11.3 6.1 185 BONE SPRINGS DIV 9350 13.6 11.4 119 10.9 10.3 106 BURGESS JUNCTION 7880 8.9 7.9 113 11.1 8.5 131 CLOUD PEAK RESERVOIR 9860 11.9 8.7 137 11.0 8.8 125 DOME LAKE 8880 10.5 8.6 122 11.5 9.3 124 GRAVE SPRINGS 8550 6.0 6.3 95 7.5 6.8 110 HANSEN SAWMILL 8360 4.1 4.5 91 6.1 5.6 109 LITTLE GOOSE 8870 8.3 -M * 12.8 -M * MIDDLE POWDER 7760 7.4 7.9 94 8.3 8.7 95 POWDER RIVER PASS 9480 7.0 7.7 91 8.6 8.9 97 SOLDIER PARK 8720 9.3 -M * 7.5 -M * SUCKER CREEK 8880 10.9 7.9 138 11.3 9.4 120 TIE CREEK 6870 5.3 4.3 123 11.2 7.2 156 ----- ----- Basin wide percent of average 114 120 BELLE FOURCHE BLIND PARK 6890 5.1 5.8 88 5.9 8.3 71 COLE CANYON 5910 3.7 5.0 74 5.5 5.0 110 NORTH RAPID CREEK 6130 5.3 5.7 93 4.8 6.8 71 ----- ----- Basin wide percent of average 85 81 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 15.4 -M * 16.8 -M * CINNABAR PARK 9574 12.1 14.4 84 15.6 15.6 100 COLUMBINE 9160 12.5 18.7 67 13.8 18.2 76 DIVIDE PEAK 8880 10.0 13.9 72 13.6 14.9 91 ELK RIVER 8700 9.2 13.8 67 10.4 14.0 74 JOE WRIGHT 10120 11.1 15.2 73 14.5 17.6 82 NORTH FRENCH CREEK 10130 14.8 19.9 74 15.1 17.8 85 OLD BATTLE 10000 15.8 22.3 71 19.0 24.6 77 SAGE CREEK BASIN 7850 11.0 8.1 136 7.5 8.6 87 SOUTH BRUSH CREEK 8440 5.6 8.3 67 8.7 11.8 74 TOWER 10500 19.3 33.0 58 21.2 27.8 76 WEBBER SPRINGS 9250 12.1 17.9 68 15.7 19.5 81 WILLOW CREEK PASS 9540 -M 8.3 * 6.9 9.1 76 ----- ----- Basin wide percent of average 72 81 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.9 16.7 71 13.5 15.4 88 CASPER MTN. 7900 15.1 9.9 153 15.1 9.7 156 DEADMAN HILL 10220 12.9 11.5 112 12.0 11.5 104 DEER PARK 9700 8.2 13.1 63 12.8 15.9 81 LAPRELE CREEK 8375 7.2 7.8 92 9.7 8.8 110 RENO HILL 8400 12.3 9.1 135 13.8 10.1 137 ROACH 9700 10.2 12.2 84 13.0 12.7 102 SAND LAKE 10050 17.7 21.7 82 17.8 17.1 104 SOUTH PASS 9040 10.2 12.0 85 10.2 13.4 76 WINDY PEAK 7900 5.7 5.1 112 7.5 7.5 100 ----- ----- Basin wide percent of average 94 103 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.8 8.5 80 8.0 10.7 75 DIVIDE PEAK 8880 10.0 13.9 72 13.6 14.9 91 OLD BATTLE 10000 15.8 22.3 71 19.0 24.6 77 SANDSTONE RS 8150 6.0 10.8 56 8.0 13.7 58 WHISKEY PARK 8950 13.1 20.6 64 16.8 20.9 80 ----- ----- Basin wide percent of average 68 77 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.2 10.5 88 9.6 9.9 97 BLIND BULL SUM 8650 15.5 20.1 77 13.1 16.7 78 EAST RIM DIVIDE 7930 8.5 9.5 89 9.2 8.8 105 ELKHART PARK G.S. 9400 9.0 9.7 93 10.4 9.6 108 GROS VENTRE SUMMIT 8750 7.3 10.2 72 8.1 9.4 86 GUNSIGHT PASS 9820 8.8 -M * 9.8 -M * KENDALL R.S. 7740 10.8 10.8 100 12.0 10.7 112 LOOMIS PARK 8240 10.2 12.4 82 12.3 12.9 95 NEW FORK LAKE 8340 8.5 8.4 101 8.2 8.5 96 POCKET CREEK 9360 7.0 -M * 9.6 -M * SNIDER BASIN 8060 8.7 10.8 81 9.2 12.1 76 SPRING CREEK DIVIDE 9000 15.3 19.2 80 15.9 19.9 80 TRIPLE PEAK 8500 15.5 18.2 85 18.1 17.8 102 ----- ----- Basin wide percent of average 85 93 LOWER GREEN RIVER HAMS FORK 7840 7.5 9.3 81 7.8 9.1 86 HEWINTA 9519 5.8 7.6 76 8.8 10.1 87 HICKERSON PARK 9145 6.7 5.0 134 9.6 5.5 175 HOLE-IN-ROCK 9150 5.8 4.7 123 8.7 5.1 171 INDIAN CREEK 9425 14.6 19.3 76 13.4 18.4 73 KELLEY R.S. 8180 10.2 11.9 86 12.4 15.1 82 STEEL CREEK PARK 10200 3.4 10.6 32 9.8 11.1 88 ----- ----- Basin wide percent of average 79 95 UPPER BEAR RIVER BUG LAKE 7950 9.4 14.7 64 11.3 14.1 80 HAYDEN FORK 9212 7.0 11.1 63 11.9 14.9 80 KELLEY R.S. 8180 10.2 11.9 86 12.4 15.1 82 LILY LAKE 9156 5.9 9.2 64 8.3 12.5 66 MONTE CRISTO 8960 12.3 20.7 59 13.4 18.3 73 SALT RIVER SUMMIT 7760 7.9 10.5 75 8.7 13.8 63 TRIAL LAKE 9992 8.9 17.5 51 9.3 17.5 53 ----- ----- Basin wide percent of average 64 71 ----------------------------------------------------------------------------- -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.