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: FEBRUARY 8 , 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 13.6 107 17.5 15.8 111 COTTONWOOD CREEK 7670 19.0 15.1 126 24.9 19.7 126 GRAND TARGHEE 9260 35.4 -M * 24.9 -M * GRANITE CREEK 6770 14.2 13.3 107 16.7 14.6 114 GRASSY LAKE 7265 25.4 24.6 103 28.0 26.5 106 GROS VENTRE SUMMIT 8750 11.2 9.9 113 11.0 9.1 121 GUNSIGHT PASS 9820 12.5 -M * 12.6 -M * LEWIS LAKE DIVIDE 7850 24.7 24.8 100 25.1 26.4 95 PHILLIPS BENCH 8200 21.9 19.8 111 23.0 20.7 111 SALT RIVER SUMMIT 7760 11.9 10.0 119 16.0 13.4 119 SNAKE RIVER STATION 6920 -M 13.6 * -M 16.5 * SPRING CREEK DIVIDE 9000 25.2 18.5 136 24.5 19.3 127 THUMB DIVIDE 7980 13.8 12.6 110 14.1 13.5 104 TOGWOTEE PASS 9580 21.5 17.9 120 22.8 17.7 129 TWO OCEAN PLATEAU 9240 24.0 20.1 119 19.8 19.6 101 WILLOW CREEK 8380 23.9 21.5 111 29.1 23.0 127 ----- ----- Basin wide percent of average 113 114 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 18.6 16.9 110 18.2 14.7 124 BLACK BEAR 8170 30.5 27.0 113 30.0 27.8 108 CANYON 7870 11.6 9.4 123 12.9 11.3 114 FISHER CREEK 9100 28.6 24.9 115 27.9 26.0 107 MADISON PLATEAU 7750 19.0 17.1 111 20.7 18.6 111 NORTHEAST ENTRANCE 7350 9.7 8.1 120 11.6 9.4 123 PARKER PEAK 9400 20.7 15.4 134 18.7 11.7 160 SYLVAN LAKE 8420 17.0 15.7 108 20.4 15.6 131 THUMB DIVIDE 7980 13.8 12.6 110 14.1 13.5 104 TWO OCEAN PLATEAU 9240 24.0 20.1 119 19.8 19.6 101 WHISKEY CREEK 6800 13.3 11.7 114 16.1 14.6 110 WHITE MILL 8700 20.0 16.9 118 20.6 19.3 107 WOLVERINE 7650 12.1 9.0 134 10.8 9.7 111 ----- ----- Basin wide percent of average 117 114 WIND RIVER BURROUGHS CREEK 8750 10.7 10.6 101 11.2 11.9 94 CASTLE CREEK 8400 4.6 -M * 5.3 -M * COLD SPRINGS 9630 6.2 6.2 100 6.3 7.4 85 DEER PARK 9700 14.5 12.2 119 15.5 15.5 100 HOBBS PARK 10100 9.8 10.2 96 8.9 8.6 103 LITTLE WARM 9370 8.5 8.1 105 8.7 9.5 92 SOUTH PASS 9040 12.0 11.8 102 10.4 13.0 80 ST. LAWRENCE ALT 8620 4.2 4.9 86 5.0 6.0 83 TOGWOTEE PASS 9580 21.5 17.9 120 22.8 17.7 129 TOWNSEND CREEK 8700 -M 5.8 * -M 7.7 * ----- ----- Basin wide percent of average 107 99 BIGHORN BASIN BALD MTN. 9380 17.3 13.9 124 13.9 12.3 113 BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.7 112 BLACKWATER 9780 18.9 17.2 110 18.2 14.9 122 BONE SPRINGS DIV 9350 13.8 11.0 125 11.7 10.1 116 EVENING STAR 9200 23.3 20.8 112 25.6 18.6 138 GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.6 94 KIRWIN 9550 8.3 7.9 105 9.1 8.0 114 MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77 MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.6 101 OWL CREEK 8975 3.9 3.5 111 3.8 3.9 97 POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.7 141 SHELL CREEK 9580 12.3 10.3 119 11.0 9.7 113 SYLVAN LAKE 8420 17.0 15.7 108 20.4 15.6 131 SYLVAN ROAD 7120 11.5 9.4 122 15.3 13.9 110 TIMBER CREEK 7950 2.8 3.7 76 3.4 4.7 72 YOUNTS PEAK 8350 12.3 12.4 99 11.0 11.9 92 ----- ----- Basin wide percent of average 110 114 SHOSHONE RIVER BLACKWATER 9780 18.9 17.2 110 18.2 14.9 122 EVENING STAR 9200 23.3 20.8 112 25.6 18.6 138 KIRWIN 9550 8.3 7.9 105 9.1 8.0 114 MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77 SYLVAN LAKE 8420 17.0 15.7 108 20.4 15.6 131 SYLVAN ROAD 7120 11.5 9.4 122 15.3 13.9 110 YOUNTS PEAK 8350 12.3 12.4 99 11.0 11.9 92 ----- ----- Basin wide percent of average 104 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.7 112 BIG GOOSE 7990 5.5 6.4 86 7.1 6.0 118 BONE SPRINGS DIV 9350 13.8 11.0 125 11.7 10.1 116 BURGESS JUNCTION 7880 7.8 7.7 101 8.7 8.3 105 CLOUD PEAK RESERVOIR 9860 11.0 8.4 131 10.8 8.6 126 DOME LAKE 8880 8.1 8.3 98 9.4 9.1 103 GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.6 94 HANSEN SAWMILL 8360 4.7 4.4 107 5.0 5.5 91 LITTLE GOOSE 8870 6.5 -M * 10.4 -M * MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.6 101 POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.7 141 SOLDIER PARK 8720 4.8 -M * 6.2 -M * SUCKER CREEK 8880 9.6 7.6 126 10.5 9.2 114 TIE CREEK 6870 5.1 4.2 121 7.2 7.0 103 ----- ----- Basin wide percent of average 114 111 BELLE FOURCHE BLIND PARK 6890 7.7 5.6 138 13.2 8.1 163 COLE CANYON 5910 6.6 4.8 138 9.5 4.9 194 NORTH RAPID CREEK 6130 7.3 5.4 135 11.4 6.6 173 ----- ----- Basin wide percent of average 137 174 UPPER N. PLATTE RIVER CINNABAR PARK 9574 20.2 13.9 145 21.5 15.1 142 COLUMBINE 9160 24.8 17.9 139 24.3 17.6 138 DIVIDE PEAK 8880 15.7 13.6 115 19.6 14.4 136 ELK RIVER 8700 18.1 13.2 137 20.1 13.5 149 JOE WRIGHT 10120 21.5 14.7 146 24.1 17.1 141 NORTH FRENCH CREEK 10130 33.2 19.4 171 -M 17.2 * OLD BATTLE 10000 31.3 21.5 146 26.9 23.8 113 SAGE CREEK BASIN 7850 14.1 7.9 178 13.7 8.4 163 SOUTH BRUSH CREEK 8440 13.4 8.0 168 16.6 11.5 144 TOWER 10500 40.9 32.0 128 35.5 26.9 132 WEBBER SPRINGS 9250 21.8 17.2 127 26.6 19.0 140 WILLOW CREEK PASS 9540 13.4 8.0 168 13.0 8.8 148 ----- ----- Basin wide percent of average 143 137 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 22.4 16.2 138 22.8 15.0 152 CASPER MTN. 7900 8.7 9.6 91 11.2 9.4 119 DEADMAN HILL 10220 -M 11.2 * -M 11.2 * DEER PARK 9700 14.5 12.2 119 15.5 15.5 100 LAPRELE CREEK 8375 9.2 7.6 121 10.4 8.6 121 RENO HILL 8400 10.9 8.8 124 12.6 9.8 129 ROACH 9700 15.5 11.7 132 18.8 12.3 153 SAND LAKE 10050 27.1 21.1 128 25.4 16.7 152 SOUTH PASS 9040 12.0 11.8 102 10.4 13.0 80 WINDY PEAK 7900 7.4 4.9 151 9.8 7.3 134 ----- ----- Basin wide percent of average 123 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 8.3 * 11.5 10.4 111 DIVIDE PEAK 8880 15.7 13.6 115 19.6 14.4 136 OLD BATTLE 10000 31.3 21.5 146 26.9 23.8 113 SANDSTONE RS 8150 -M 10.4 * -M 13.3 * WHISKEY PARK 8950 -M 19.9 * 27.9 20.4 137 ----- ----- Basin wide percent of average 134* 124 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.1 10.1 100 10.5 9.6 109 BLIND BULL SUM 8650 21.5 19.5 110 15.4 16.3 94 EAST RIM DIVIDE 7930 10.6 9.1 116 9.5 8.6 110 ELKHART PARK G.S. 9400 9.1 9.3 98 9.2 9.3 99 GROS VENTRE SUMMIT 8750 11.2 9.9 113 11.0 9.1 121 GUNSIGHT PASS 9820 12.5 -M * 12.6 -M * KENDALL R.S. 7740 9.2 10.4 88 10.9 10.4 105 LOOMIS PARK 8240 13.7 12.0 114 14.8 12.5 118 NEW FORK LAKE 8340 9.1 8.1 112 8.5 8.3 102 POCKET CREEK 9360 7.5 -M * 10.0 -M * SNIDER BASIN 8060 14.8 10.4 142 14.7 11.7 126 SPRING CREEK DIVIDE 9000 25.2 18.5 136 24.5 19.3 127 TRIPLE PEAK 8500 22.7 17.6 129 24.0 17.2 140 ----- ----- Basin wide percent of average 117 116 LOWER GREEN RIVER HAMS FORK 7840 11.7 9.0 130 11.8 8.9 133 HEWINTA 9519 9.1 7.3 125 12.6 9.8 129 HICKERSON PARK 9145 5.0 4.8 104 6.7 5.4 124 HOLE-IN-ROCK 9150 5.8 4.5 129 7.4 5.0 148 INDIAN CREEK 9425 22.7 18.7 121 20.9 17.8 117 KELLEY R.S. 8180 15.0 11.4 132 17.7 14.6 121 STEEL CREEK PARK 10200 12.4 10.1 123 15.3 10.8 142 ----- ----- Basin wide percent of average 124 128 UPPER BEAR RIVER BUG LAKE 7950 19.9 14.2 140 20.5 13.7 150 HAYDEN FORK 9212 16.0 10.6 151 22.4 14.4 156 KELLEY R.S. 8180 15.0 11.4 132 17.7 14.6 121 LILY LAKE 9156 13.8 8.8 157 16.4 12.1 136 MONTE CRISTO 8960 24.2 19.8 122 25.0 17.7 141 SALT RIVER SUMMIT 7760 11.9 10.0 119 16.0 13.4 119 TRIAL LAKE 9992 25.6 16.8 152 25.9 16.9 153 ----- ----- Basin wide percent of average 138 140 ----------------------------------------------------------------------------- -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.