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 THURSDAY: FEBRUARY 3 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.8 13.0 106 17.0 15.1 113 COTTONWOOD CREEK 7670 18.2 14.5 126 24.2 19.0 127 GRAND TARGHEE 9260 33.5 -M * 24.4 -M * GRANITE CREEK 6770 13.5 12.6 107 15.7 14.0 112 GRASSY LAKE 7265 24.3 23.5 103 26.9 25.5 105 GROS VENTRE SUMMIT 8750 10.1 9.6 105 9.8 8.8 111 GUNSIGHT PASS 9820 11.5 -M * 11.7 -M * LEWIS LAKE DIVIDE 7850 23.8 23.6 101 24.1 25.3 95 PHILLIPS BENCH 8200 20.7 18.9 110 21.8 19.9 110 SALT RIVER SUMMIT 7760 11.1 9.5 117 15.2 12.8 119 SNAKE RIVER STATION 6920 -M 12.9 * -M 15.8 * SPRING CREEK DIVIDE 9000 23.9 17.7 135 23.3 18.6 125 THUMB DIVIDE 7980 13.5 12.0 113 13.6 12.9 105 TOGWOTEE PASS 9580 19.9 17.2 116 21.3 17.1 125 TWO OCEAN PLATEAU 9240 22.8 19.3 118 18.8 18.8 100 WILLOW CREEK 8380 22.9 20.6 111 28.0 22.1 127 ----- ----- Basin wide percent of average 113 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.3 16.4 105 16.9 14.2 119 BLACK BEAR 8170 29.2 26.0 112 29.0 26.6 109 CANYON 7870 11.0 9.1 121 12.4 11.0 113 FISHER CREEK 9100 26.5 24.1 110 25.6 25.0 102 MADISON PLATEAU 7750 18.4 16.4 112 20.2 17.8 113 NORTHEAST ENTRANCE 7350 8.8 7.9 111 10.7 9.0 119 PARKER PEAK 9400 19.6 15.0 131 18.1 11.3 160 SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.0 129 THUMB DIVIDE 7980 13.5 12.0 113 13.6 12.9 105 TWO OCEAN PLATEAU 9240 22.8 19.3 118 18.8 18.8 100 WHISKEY CREEK 6800 13.2 11.3 117 15.6 14.0 111 WHITE MILL 8700 18.3 16.3 112 19.1 18.6 103 WOLVERINE 7650 11.4 8.8 130 10.4 9.3 112 ----- ----- Basin wide percent of average 114 113 WIND RIVER BURROUGHS CREEK 8750 10.1 10.2 99 10.6 11.5 92 CASTLE CREEK 8400 4.3 -M * 5.0 -M * COLD SPRINGS 9630 5.8 6.0 97 5.9 7.2 82 DEER PARK 9700 14.1 11.6 122 15.3 14.8 103 HOBBS PARK 10100 9.5 9.9 96 8.6 8.3 104 LITTLE WARM 9370 8.1 7.8 104 8.5 9.2 92 SOUTH PASS 9040 11.6 11.4 102 10.2 12.4 82 ST. LAWRENCE ALT 8620 3.8 4.8 79 4.6 5.8 79 TOGWOTEE PASS 9580 19.9 17.2 116 21.3 17.1 125 TOWNSEND CREEK 8700 -M 5.6 * -M 7.4 * ----- ----- Basin wide percent of average 105 98 BIGHORN BASIN BALD MTN. 9380 16.0 13.6 118 13.4 12.0 112 BEAR TRAP MEADOW 8200 5.5 3.6 153 6.0 5.6 107 BLACKWATER 9780 17.9 16.7 107 17.4 14.4 121 BONE SPRINGS DIV 9350 12.9 10.7 121 11.1 9.7 114 EVENING STAR 9200 22.5 20.0 113 24.9 17.9 139 GRAVE SPRINGS 8550 5.1 5.9 86 5.4 6.5 83 KIRWIN 9550 7.9 7.7 103 8.7 7.7 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.3 73 MIDDLE POWDER 7760 6.5 7.4 88 4.4 8.4 52 OWL CREEK 8975 3.3 3.4 97 3.4 3.7 92 POWDER RIVER PASS 9480 10.0 7.4 135 11.7 8.4 139 SHELL CREEK 9580 11.7 10.0 117 10.5 9.4 112 SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.0 129 SYLVAN ROAD 7120 10.8 8.9 121 14.3 13.5 106 TIMBER CREEK 7950 2.7 3.7 73 3.2 4.6 70 YOUNTS PEAK 8350 11.8 12.1 98 10.5 11.5 91 ----- ----- Basin wide percent of average 107 109 SHOSHONE RIVER BLACKWATER 9780 17.9 16.7 107 17.4 14.4 121 EVENING STAR 9200 22.5 20.0 113 24.9 17.9 139 KIRWIN 9550 7.9 7.7 103 8.7 7.7 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.3 73 SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.0 129 SYLVAN ROAD 7120 10.8 8.9 121 14.3 13.5 106 YOUNTS PEAK 8350 11.8 12.1 98 10.5 11.5 91 ----- ----- Basin wide percent of average 103 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 3.6 153 6.0 5.6 107 BIG GOOSE 7990 5.2 6.1 85 6.7 5.8 116 BONE SPRINGS DIV 9350 12.9 10.7 121 11.1 9.7 114 BURGESS JUNCTION 7880 6.7 7.5 89 7.8 8.0 98 CLOUD PEAK RESERVOIR 9860 10.2 8.2 124 9.9 8.3 119 DOME LAKE 8880 7.4 8.0 93 8.9 8.8 101 GRAVE SPRINGS 8550 5.1 5.9 86 5.4 6.5 83 HANSEN SAWMILL 8360 4.7 4.3 109 5.0 5.4 93 LITTLE GOOSE 8870 6.0 -M * 9.9 -M * MIDDLE POWDER 7760 6.5 7.4 88 4.4 8.4 52 POWDER RIVER PASS 9480 10.0 7.4 135 11.7 8.4 139 SOLDIER PARK 8720 4.5 -M * 5.9 -M * SUCKER CREEK 8880 8.6 7.4 116 9.4 8.9 106 TIE CREEK 6870 4.3 4.1 105 6.4 6.9 93 ----- ----- Basin wide percent of average 108 102 BELLE FOURCHE BLIND PARK 6890 6.0 5.5 109 11.9 7.9 151 COLE CANYON 5910 5.6 4.6 122 8.3 4.8 173 NORTH RAPID CREEK 6130 5.8 5.1 114 9.8 6.4 153 ----- ----- Basin wide percent of average 114 157 UPPER N. PLATTE RIVER CINNABAR PARK 9574 18.0 13.4 134 21.3 14.5 147 COLUMBINE 9160 21.7 16.9 128 23.3 16.9 138 DIVIDE PEAK 8880 14.4 13.2 109 18.2 13.9 131 ELK RIVER 8700 16.0 12.5 128 17.9 12.9 139 JOE WRIGHT 10120 18.0 14.1 128 23.7 16.5 144 NORTH FRENCH CREEK 10130 29.4 18.7 157 27.8 16.6 167 OLD BATTLE 10000 28.5 20.4 140 26.3 22.8 115 SAGE CREEK BASIN 7850 13.4 7.7 174 13.2 8.1 163 SOUTH BRUSH CREEK 8440 11.6 7.6 153 14.5 11.0 132 TOWER 10500 37.2 30.6 122 35.1 25.8 136 WEBBER SPRINGS 9250 20.0 16.4 122 24.7 18.3 135 WILLOW CREEK PASS 9540 12.3 7.7 160 12.1 8.4 144 ----- ----- Basin wide percent of average 134 139 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.4 15.6 131 21.4 14.5 148 CASPER MTN. 7900 7.6 9.2 83 10.3 9.1 113 DEADMAN HILL 10220 -M 10.7 * -M 10.8 * DEER PARK 9700 14.1 11.6 122 15.3 14.8 103 LAPRELE CREEK 8375 8.0 7.4 108 9.3 8.3 112 RENO HILL 8400 9.3 8.5 109 11.0 9.5 116 ROACH 9700 13.6 11.2 121 16.4 11.8 139 SAND LAKE 10050 24.1 20.3 119 22.7 16.1 141 SOUTH PASS 9040 11.6 11.4 102 10.2 12.4 82 WINDY PEAK 7900 6.3 4.6 137 9.1 7.1 128 ----- ----- Basin wide percent of average 115 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 8.0 * 10.2 10.0 102 DIVIDE PEAK 8880 14.4 13.2 109 18.2 13.9 131 OLD BATTLE 10000 28.5 20.4 140 26.3 22.8 115 SANDSTONE RS 8150 -M 9.9 * -M 12.7 * WHISKEY PARK 8950 -M 18.9 * 27.0 19.7 137 ----- ----- Basin wide percent of average 128* 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.5 9.7 98 10.1 9.2 110 BLIND BULL SUM 8650 20.0 18.7 107 14.6 15.6 94 EAST RIM DIVIDE 7930 9.5 8.7 109 9.5 8.2 116 ELKHART PARK G.S. 9400 8.6 8.9 97 8.9 9.0 99 GROS VENTRE SUMMIT 8750 10.1 9.6 105 9.8 8.8 111 GUNSIGHT PASS 9820 11.5 -M * 11.7 -M * KENDALL R.S. 7740 8.5 10.0 85 10.4 9.9 105 LOOMIS PARK 8240 12.5 11.5 109 13.6 12.0 113 NEW FORK LAKE 8340 8.2 7.8 105 7.9 8.0 99 POCKET CREEK 9360 7.4 -M * 9.8 -M * SNIDER BASIN 8060 13.8 10.0 138 13.7 11.3 121 SPRING CREEK DIVIDE 9000 23.9 17.7 135 23.3 18.6 125 TRIPLE PEAK 8500 21.2 16.9 125 22.5 16.5 136 ----- ----- Basin wide percent of average 113 114 LOWER GREEN RIVER HAMS FORK 7840 11.0 8.5 129 11.4 8.5 134 HEWINTA 9519 7.7 6.9 112 11.4 9.5 120 HICKERSON PARK 9145 4.0 4.5 89 5.7 5.3 108 HOLE-IN-ROCK 9150 4.8 4.2 114 6.4 4.8 133 INDIAN CREEK 9425 21.8 17.9 122 20.0 17.1 117 KELLEY R.S. 8180 14.4 10.9 132 16.8 14.1 119 STEEL CREEK PARK 10200 10.9 9.6 114 14.1 10.3 137 ----- ----- Basin wide percent of average 119 123 UPPER BEAR RIVER BUG LAKE 7950 18.7 13.5 139 20.1 13.1 153 HAYDEN FORK 9212 14.1 10.0 141 20.9 13.8 151 KELLEY R.S. 8180 14.4 10.9 132 16.8 14.1 119 LILY LAKE 9156 12.6 8.4 150 15.3 11.6 132 MONTE CRISTO 8960 23.0 18.7 123 24.8 17.0 146 SALT RIVER SUMMIT 7760 11.1 9.5 117 15.2 12.8 119 TRIAL LAKE 9992 23.7 16.0 148 24.5 16.1 152 ----- ----- Basin wide percent of average 135 140 ----------------------------------------------------------------------------- -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.