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: FEBRUARY 12 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.6 14.1 104 17.6 16.3 108 COTTONWOOD CREEK 7670 19.3 15.6 124 26.2 20.2 130 GRAND TARGHEE 9260 35.5 -M * 25.5 -M * GRANITE CREEK 6770 14.3 13.8 104 16.7 15.1 111 GRASSY LAKE 7265 25.5 25.6 100 28.3 27.3 104 GROS VENTRE SUMMIT 8750 11.2 10.2 110 10.9 9.4 116 GUNSIGHT PASS 9820 12.5 -M * 12.7 -M * LEWIS LAKE DIVIDE 7850 24.6 25.7 96 25.4 27.3 93 PHILLIPS BENCH 8200 21.9 20.6 106 23.1 21.4 108 SALT RIVER SUMMIT 7760 12.0 10.5 114 16.1 13.8 117 SNAKE RIVER STATION 6920 -M 14.2 * -M 17.1 * SPRING CREEK DIVIDE 9000 25.3 19.2 132 25.0 19.9 126 THUMB DIVIDE 7980 14.0 13.1 107 14.4 13.9 104 TOGWOTEE PASS 9580 21.6 18.4 117 23.0 18.2 126 TWO OCEAN PLATEAU 9240 24.0 20.7 116 20.0 20.3 99 WILLOW CREEK 8380 24.1 22.2 109 29.3 23.7 124 ----- ----- Basin wide percent of average 110 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 18.6 17.6 106 18.1 15.2 119 BLACK BEAR 8170 30.7 28.0 110 30.2 28.7 105 CANYON 7870 11.6 9.8 118 13.2 11.6 114 FISHER CREEK 9100 29.1 25.8 113 28.3 26.8 106 MADISON PLATEAU 7750 19.0 17.7 107 20.9 19.2 109 NORTHEAST ENTRANCE 7350 9.7 8.5 114 11.6 9.6 121 PARKER PEAK 9400 20.8 15.9 131 -M 12.1 * SYLVAN LAKE 8420 17.2 16.2 106 20.4 16.0 128 THUMB DIVIDE 7980 14.0 13.1 107 14.4 13.9 104 TWO OCEAN PLATEAU 9240 24.0 20.7 116 20.0 20.3 99 WHISKEY CREEK 6800 13.3 12.2 109 16.3 15.1 108 WHITE MILL 8700 20.1 17.6 114 20.7 19.9 104 WOLVERINE 7650 12.1 9.3 130 11.0 9.9 111 ----- ----- Basin wide percent of average 113 109 WIND RIVER BURROUGHS CREEK 8750 10.8 10.9 99 11.3 12.2 93 CASTLE CREEK 8400 4.6 -M * 5.1 -M * COLD SPRINGS 9630 6.3 6.3 100 6.3 7.6 83 DEER PARK 9700 14.5 13.1 111 15.7 15.9 99 HOBBS PARK 10100 9.8 10.3 95 9.0 8.8 102 LITTLE WARM 9370 8.6 8.3 104 8.8 9.8 90 SOUTH PASS 9040 12.2 12.0 102 10.6 13.4 79 ST. LAWRENCE ALT 8620 4.2 5.1 82 4.9 6.2 79 TOGWOTEE PASS 9580 21.6 18.4 117 23.0 18.2 126 TOWNSEND CREEK 8700 -M 6.0 * -M 7.9 * ----- ----- Basin wide percent of average 104 97 BIGHORN BASIN BALD MTN. 9380 17.7 14.2 125 14.2 12.7 112 BEAR TRAP MEADOW 8200 6.0 3.8 158 6.4 5.9 108 BLACKWATER 9780 19.1 17.7 108 18.4 15.3 120 BONE SPRINGS DIV 9350 14.0 11.4 123 11.6 10.3 113 EVENING STAR 9200 23.3 21.7 107 25.7 19.2 134 GRAVE SPRINGS 8550 6.0 6.3 95 6.2 6.8 91 KIRWIN 9550 8.3 8.1 102 9.2 8.2 112 MARQUETTE 8760 2.2 6.2 35 5.0 6.7 75 MIDDLE POWDER 7760 7.2 7.9 91 8.8 8.7 101 OWL CREEK 8975 3.9 3.6 108 3.9 4.0 98 POWDER RIVER PASS 9480 10.5 7.7 136 12.3 8.9 138 SHELL CREEK 9580 12.4 10.5 118 11.1 9.9 112 SYLVAN LAKE 8420 17.2 16.2 106 20.4 16.0 128 SYLVAN ROAD 7120 11.5 9.7 119 15.4 14.2 108 TIMBER CREEK 7950 2.9 3.9 74 3.4 4.8 71 YOUNTS PEAK 8350 12.5 12.8 98 11.0 12.2 90 ----- ----- Basin wide percent of average 108 112 SHOSHONE RIVER BLACKWATER 9780 19.1 17.7 108 18.4 15.3 120 EVENING STAR 9200 23.3 21.7 107 25.7 19.2 134 KIRWIN 9550 8.3 8.1 102 9.2 8.2 112 MARQUETTE 8760 2.2 6.2 35 5.0 6.7 75 SYLVAN LAKE 8420 17.2 16.2 106 20.4 16.0 128 SYLVAN ROAD 7120 11.5 9.7 119 15.4 14.2 108 YOUNTS PEAK 8350 12.5 12.8 98 11.0 12.2 90 ----- ----- Basin wide percent of average 102 114 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.0 3.8 158 6.4 5.9 108 BIG GOOSE 7990 5.8 6.6 88 7.4 6.1 121 BONE SPRINGS DIV 9350 14.0 11.4 123 11.6 10.3 113 BURGESS JUNCTION 7880 7.9 7.9 100 8.9 8.5 105 CLOUD PEAK RESERVOIR 9860 11.2 8.7 129 10.8 8.8 123 DOME LAKE 8880 8.3 8.6 97 9.5 9.3 102 GRAVE SPRINGS 8550 6.0 6.3 95 6.2 6.8 91 HANSEN SAWMILL 8360 4.7 4.5 104 5.1 5.7 89 LITTLE GOOSE 8870 6.6 -M * 10.5 -M * MIDDLE POWDER 7760 7.2 7.9 91 8.8 8.7 101 POWDER RIVER PASS 9480 10.5 7.7 136 12.3 8.9 138 SOLDIER PARK 8720 4.9 -M * 6.3 -M * SUCKER CREEK 8880 9.8 7.9 124 10.7 9.4 114 TIE CREEK 6870 5.3 4.3 123 7.5 7.2 104 ----- ----- Basin wide percent of average 113 110 BELLE FOURCHE BLIND PARK 6890 7.9 5.8 136 13.6 8.3 164 COLE CANYON 5910 6.6 5.0 132 9.5 5.0 190 NORTH RAPID CREEK 6130 7.5 5.7 132 11.5 6.8 169 ----- ----- Basin wide percent of average 133 172 UPPER N. PLATTE RIVER CINNABAR PARK 9574 20.4 14.4 142 21.5 15.6 138 COLUMBINE 9160 24.9 18.7 133 24.3 18.2 134 DIVIDE PEAK 8880 15.7 13.9 113 19.7 14.9 132 ELK RIVER 8700 18.3 13.8 133 20.2 14.0 144 JOE WRIGHT 10120 21.5 15.2 141 25.2 17.6 143 NORTH FRENCH CREEK 10130 33.4 19.9 168 -M 17.8 * OLD BATTLE 10000 30.8 22.3 138 27.0 24.6 110 SAGE CREEK BASIN 7850 14.9 8.1 184 13.8 8.6 160 SOUTH BRUSH CREEK 8440 13.4 8.3 161 16.6 11.8 141 TOWER 10500 40.9 33.0 124 35.5 27.8 128 WEBBER SPRINGS 9250 21.8 17.9 122 26.8 19.5 137 WILLOW CREEK PASS 9540 13.5 8.3 163 13.1 9.1 144 ----- ----- Basin wide percent of average 139 134 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 22.6 16.7 135 23.4 15.4 152 CASPER MTN. 7900 8.7 9.9 88 11.2 9.7 115 DEADMAN HILL 10220 15.0 11.5 130 16.7 11.5 145 DEER PARK 9700 14.5 13.1 111 15.7 15.9 99 LAPRELE CREEK 8375 9.3 7.8 119 10.6 8.8 120 RENO HILL 8400 11.0 9.1 121 12.8 10.1 127 ROACH 9700 15.7 12.2 129 19.0 12.7 150 SAND LAKE 10050 27.3 21.7 126 25.7 17.1 150 SOUTH PASS 9040 12.2 12.0 102 10.6 13.4 79 WINDY PEAK 7900 7.6 5.1 149 9.9 7.5 132 ----- ----- Basin wide percent of average 121 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 8.5 * 10.9 10.7 102 DIVIDE PEAK 8880 15.7 13.9 113 19.7 14.9 132 OLD BATTLE 10000 30.8 22.3 138 27.0 24.6 110 SANDSTONE RS 8150 10.8 10.8 100 -M 13.7 * WHISKEY PARK 8950 -M 20.6 * 29.2 20.9 140 ----- ----- Basin wide percent of average 122 122 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.0 10.5 95 10.5 9.9 106 BLIND BULL SUM 8650 21.5 20.1 107 15.5 16.7 93 EAST RIM DIVIDE 7930 10.9 9.5 115 9.5 8.8 108 ELKHART PARK G.S. 9400 9.2 9.7 95 9.3 9.6 97 GROS VENTRE SUMMIT 8750 11.2 10.2 110 10.9 9.4 116 GUNSIGHT PASS 9820 12.5 -M * 12.7 -M * KENDALL R.S. 7740 9.2 10.8 85 10.9 10.7 102 LOOMIS PARK 8240 13.8 12.4 111 14.9 12.9 116 NEW FORK LAKE 8340 9.0 8.4 107 8.5 8.5 100 POCKET CREEK 9360 7.4 -M * 10.1 -M * SNIDER BASIN 8060 14.8 10.8 137 14.8 12.1 122 SPRING CREEK DIVIDE 9000 25.3 19.2 132 25.0 19.9 126 TRIPLE PEAK 8500 22.7 18.2 125 24.3 17.8 137 ----- ----- Basin wide percent of average 113 113 LOWER GREEN RIVER HAMS FORK 7840 11.7 9.3 126 11.8 9.1 130 HEWINTA 9519 9.1 7.6 120 12.6 10.1 125 HICKERSON PARK 9145 5.1 5.0 102 6.8 5.5 124 HOLE-IN-ROCK 9150 5.9 4.7 126 7.5 5.1 147 INDIAN CREEK 9425 22.8 19.3 118 21.1 18.4 115 KELLEY R.S. 8180 15.0 11.9 126 17.7 15.1 117 STEEL CREEK PARK 10200 12.4 10.6 117 15.3 11.1 138 ----- ----- Basin wide percent of average 120 125 UPPER BEAR RIVER BUG LAKE 7950 20.2 14.7 137 20.6 14.1 146 HAYDEN FORK 9212 16.2 11.1 146 22.7 14.9 152 KELLEY R.S. 8180 15.0 11.9 126 17.7 15.1 117 LILY LAKE 9156 14.0 9.2 152 16.6 12.5 133 MONTE CRISTO 8960 24.5 20.7 118 25.1 18.3 137 SALT RIVER SUMMIT 7760 12.0 10.5 114 16.1 13.8 117 TRIAL LAKE 9992 25.6 17.5 146 26.3 17.5 150 ----- ----- Basin wide percent of average 133 137 ----------------------------------------------------------------------------- -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.