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 6 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.1 13.3 106 17.2 15.5 111 COTTONWOOD CREEK 7670 18.4 14.9 123 24.7 19.4 127 GRAND TARGHEE 9260 34.1 -M * 24.7 -M * GRANITE CREEK 6770 13.8 13.0 106 16.3 14.4 113 GRASSY LAKE 7265 24.8 24.2 102 27.5 26.1 105 GROS VENTRE SUMMIT 8750 10.6 9.8 108 10.4 9.0 116 GUNSIGHT PASS 9820 11.9 -M * 12.1 -M * LEWIS LAKE DIVIDE 7850 24.2 24.3 100 24.7 26.0 95 PHILLIPS BENCH 8200 21.1 19.5 108 22.4 20.4 110 SALT RIVER SUMMIT 7760 11.4 9.8 116 15.6 13.1 119 SNAKE RIVER STATION 6920 -M 13.3 * -M 16.3 * SPRING CREEK DIVIDE 9000 24.5 18.2 135 23.9 19.0 126 THUMB DIVIDE 7980 13.6 12.4 110 14.0 13.3 105 TOGWOTEE PASS 9580 20.7 17.6 118 22.0 17.5 126 TWO OCEAN PLATEAU 9240 23.5 19.8 119 19.5 19.3 101 WILLOW CREEK 8380 23.4 21.1 111 28.7 22.6 127 ----- ----- Basin wide percent of average 112 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 18.0 16.6 108 17.5 14.5 121 BLACK BEAR 8170 29.9 26.4 113 29.5 27.3 108 CANYON 7870 11.4 9.2 124 12.7 11.2 113 FISHER CREEK 9100 28.0 24.4 115 27.2 25.6 106 MADISON PLATEAU 7750 18.7 16.6 113 20.5 18.3 112 NORTHEAST ENTRANCE 7350 9.3 8.0 116 11.3 9.2 123 PARKER PEAK 9400 20.2 15.2 133 17.8 11.5 155 SYLVAN LAKE 8420 16.6 15.5 107 20.0 15.3 131 THUMB DIVIDE 7980 13.6 12.4 110 14.0 13.3 105 TWO OCEAN PLATEAU 9240 23.5 19.8 119 19.5 19.3 101 WHISKEY CREEK 6800 13.1 11.5 114 16.0 14.4 111 WHITE MILL 8700 19.5 16.5 118 20.1 19.0 106 WOLVERINE 7650 11.7 8.9 131 10.6 9.5 112 ----- ----- Basin wide percent of average 116 114 WIND RIVER BURROUGHS CREEK 8750 10.3 10.4 99 10.8 11.7 92 CASTLE CREEK 8400 4.3 -M * 4.8 -M * COLD SPRINGS 9630 5.7 6.1 93 6.0 7.3 82 DEER PARK 9700 14.3 11.7 122 15.3 15.2 101 HOBBS PARK 10100 9.4 10.0 94 8.5 8.5 100 LITTLE WARM 9370 8.2 7.9 104 8.5 9.4 90 SOUTH PASS 9040 11.7 11.6 101 10.2 12.8 80 ST. LAWRENCE ALT 8620 3.6 4.9 73 4.4 5.9 75 TOGWOTEE PASS 9580 20.7 17.6 118 22.0 17.5 126 TOWNSEND CREEK 8700 -M 5.7 * -M 7.6 * ----- ----- Basin wide percent of average 105 97 BIGHORN BASIN BALD MTN. 9380 16.9 13.8 122 13.7 12.2 112 BEAR TRAP MEADOW 8200 5.6 3.7 151 6.2 5.7 109 BLACKWATER 9780 18.3 16.9 108 17.7 14.7 120 BONE SPRINGS DIV 9350 13.4 10.9 123 11.2 9.9 113 EVENING STAR 9200 22.7 20.3 112 25.2 18.3 138 GRAVE SPRINGS 8550 5.6 6.0 93 5.9 6.6 89 KIRWIN 9550 8.0 7.8 103 8.7 7.9 110 MARQUETTE 8760 1.8 6.0 30 4.7 6.4 73 MIDDLE POWDER 7760 6.9 7.6 91 8.6 8.5 101 OWL CREEK 8975 3.5 3.5 100 3.6 3.8 95 POWDER RIVER PASS 9480 10.3 7.4 139 11.9 8.6 138 SHELL CREEK 9580 11.9 10.2 117 10.7 9.6 111 SYLVAN LAKE 8420 16.6 15.5 107 20.0 15.3 131 SYLVAN ROAD 7120 11.1 9.1 122 14.9 13.7 109 TIMBER CREEK 7950 2.7 3.7 73 3.3 4.6 72 YOUNTS PEAK 8350 12.0 12.2 98 10.7 11.8 91 ----- ----- Basin wide percent of average 108 112 SHOSHONE RIVER BLACKWATER 9780 18.3 16.9 108 17.7 14.7 120 EVENING STAR 9200 22.7 20.3 112 25.2 18.3 138 KIRWIN 9550 8.0 7.8 103 8.7 7.9 110 MARQUETTE 8760 1.8 6.0 30 4.7 6.4 73 SYLVAN LAKE 8420 16.6 15.5 107 20.0 15.3 131 SYLVAN ROAD 7120 11.1 9.1 122 14.9 13.7 109 YOUNTS PEAK 8350 12.0 12.2 98 10.7 11.8 91 ----- ----- Basin wide percent of average 103 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.6 3.7 151 6.2 5.7 109 BIG GOOSE 7990 5.3 6.3 84 6.9 5.9 117 BONE SPRINGS DIV 9350 13.4 10.9 123 11.2 9.9 113 BURGESS JUNCTION 7880 7.5 7.6 99 8.4 8.2 102 CLOUD PEAK RESERVOIR 9860 10.8 8.3 130 10.2 8.5 120 DOME LAKE 8880 7.8 8.2 95 9.0 9.0 100 GRAVE SPRINGS 8550 5.6 6.0 93 5.9 6.6 89 HANSEN SAWMILL 8360 4.4 4.3 102 4.9 5.5 89 LITTLE GOOSE 8870 6.2 -M * 10.0 -M * MIDDLE POWDER 7760 6.9 7.6 91 8.6 8.5 101 POWDER RIVER PASS 9480 10.3 7.4 139 11.9 8.6 138 SOLDIER PARK 8720 4.6 -M * 6.0 -M * SUCKER CREEK 8880 9.3 7.5 124 10.2 9.1 112 TIE CREEK 6870 4.9 4.2 117 7.0 7.0 100 ----- ----- Basin wide percent of average 112 109 BELLE FOURCHE BLIND PARK 6890 7.3 5.6 130 12.8 8.0 160 COLE CANYON 5910 6.1 4.7 130 9.0 4.8 188 NORTH RAPID CREEK 6130 6.8 5.3 128 10.9 6.5 168 ----- ----- Basin wide percent of average 129 169 UPPER N. PLATTE RIVER CINNABAR PARK 9574 19.2 13.7 140 21.5 14.8 145 COLUMBINE 9160 23.5 17.5 134 24.0 17.3 139 DIVIDE PEAK 8880 15.0 13.4 112 18.7 14.2 132 ELK RIVER 8700 17.1 12.9 133 19.2 13.3 144 JOE WRIGHT 10120 20.3 14.5 140 23.8 16.8 142 NORTH FRENCH CREEK 10130 31.8 19.1 166 -M 17.0 * OLD BATTLE 10000 30.0 21.1 142 26.8 23.4 115 SAGE CREEK BASIN 7850 13.6 7.8 174 13.4 8.3 161 SOUTH BRUSH CREEK 8440 12.7 7.8 163 16.1 11.3 142 TOWER 10500 39.0 31.5 124 35.5 26.5 134 WEBBER SPRINGS 9250 20.9 16.9 124 25.7 18.7 137 WILLOW CREEK PASS 9540 12.8 7.9 162 12.4 8.6 144 ----- ----- Basin wide percent of average 139 137 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.5 16.0 134 22.3 14.8 151 CASPER MTN. 7900 8.3 9.4 88 10.7 9.3 115 DEADMAN HILL 10220 -M 11.0 * -M 11.0 * DEER PARK 9700 14.3 11.7 122 15.3 15.2 101 LAPRELE CREEK 8375 9.0 7.5 120 10.3 8.4 123 RENO HILL 8400 10.4 8.7 120 12.3 9.7 127 ROACH 9700 14.5 11.5 126 17.8 12.1 147 SAND LAKE 10050 25.9 20.7 125 24.5 16.4 149 SOUTH PASS 9040 11.7 11.6 101 10.2 12.8 80 WINDY PEAK 7900 7.1 4.8 148 9.5 7.2 132 ----- ----- Basin wide percent of average 120 125 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.4 8.2 29 10.8 10.3 105 DIVIDE PEAK 8880 15.0 13.4 112 18.7 14.2 132 OLD BATTLE 10000 30.0 21.1 142 26.8 23.4 115 SANDSTONE RS 8150 -M 10.2 * -M 13.1 * WHISKEY PARK 8950 -M 19.5 * 27.3 20.1 136 ----- ----- Basin wide percent of average 111 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.8 10.0 98 10.3 9.4 110 BLIND BULL SUM 8650 20.8 19.2 108 15.1 16.0 94 EAST RIM DIVIDE 7930 10.1 8.9 113 9.0 8.4 107 ELKHART PARK G.S. 9400 8.8 9.2 96 9.0 9.2 98 GROS VENTRE SUMMIT 8750 10.6 9.8 108 10.4 9.0 116 GUNSIGHT PASS 9820 11.9 -M * 12.1 -M * KENDALL R.S. 7740 8.8 10.3 85 10.6 10.2 104 LOOMIS PARK 8240 13.1 11.8 111 14.2 12.3 115 NEW FORK LAKE 8340 8.5 8.0 106 8.1 8.1 100 POCKET CREEK 9360 7.4 -M * 9.9 -M * SNIDER BASIN 8060 14.3 10.2 140 14.3 11.5 124 SPRING CREEK DIVIDE 9000 24.5 18.2 135 23.9 19.0 126 TRIPLE PEAK 8500 22.1 17.4 127 23.5 16.9 139 ----- ----- Basin wide percent of average 114 114 LOWER GREEN RIVER HAMS FORK 7840 11.3 8.8 128 11.7 8.7 134 HEWINTA 9519 8.1 7.1 114 12.0 9.7 124 HICKERSON PARK 9145 4.6 4.7 98 6.4 5.4 119 HOLE-IN-ROCK 9150 5.5 4.4 125 7.0 4.9 143 INDIAN CREEK 9425 22.3 18.4 121 20.5 17.5 117 KELLEY R.S. 8180 14.7 11.2 131 17.3 14.4 120 STEEL CREEK PARK 10200 11.6 9.9 117 14.6 10.6 138 ----- ----- Basin wide percent of average 121 126 UPPER BEAR RIVER BUG LAKE 7950 19.1 13.9 137 20.3 13.5 150 HAYDEN FORK 9212 14.8 10.4 142 21.6 14.2 152 KELLEY R.S. 8180 14.7 11.2 131 17.3 14.4 120 LILY LAKE 9156 13.0 8.6 151 15.8 11.9 133 MONTE CRISTO 8960 23.5 19.3 122 24.9 17.4 143 SALT RIVER SUMMIT 7760 11.4 9.8 116 15.6 13.1 119 TRIAL LAKE 9992 24.6 16.5 149 24.9 16.6 150 ----- ----- Basin wide percent of average 135 139 ----------------------------------------------------------------------------- -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.