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 FRIDAY: FEBRUARY 4 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.9 13.1 106 17.0 15.2 112 COTTONWOOD CREEK 7670 18.2 14.6 125 24.2 19.1 127 GRAND TARGHEE 9260 33.7 -M * 24.6 -M * GRANITE CREEK 6770 13.6 12.8 106 16.0 14.1 113 GRASSY LAKE 7265 24.4 23.7 103 27.1 25.7 105 GROS VENTRE SUMMIT 8750 10.3 9.7 106 10.2 8.8 116 GUNSIGHT PASS 9820 11.6 -M * 11.9 -M * LEWIS LAKE DIVIDE 7850 23.9 23.8 100 24.4 25.5 96 PHILLIPS BENCH 8200 20.8 19.1 109 22.0 20.0 110 SALT RIVER SUMMIT 7760 11.2 9.6 117 15.5 12.9 120 SNAKE RIVER STATION 6920 -M 13.1 * -M 16.0 * SPRING CREEK DIVIDE 9000 24.0 17.9 134 23.5 18.7 126 THUMB DIVIDE 7980 13.7 12.1 113 13.9 13.0 107 TOGWOTEE PASS 9580 20.0 17.3 116 21.4 17.2 124 TWO OCEAN PLATEAU 9240 23.0 19.4 119 19.1 18.9 101 WILLOW CREEK 8380 22.9 20.8 110 28.1 22.3 126 ----- ----- Basin wide percent of average 112 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.3 16.5 105 16.9 14.3 118 BLACK BEAR 8170 29.2 26.1 112 29.0 26.8 108 CANYON 7870 11.0 9.1 121 12.4 11.0 113 FISHER CREEK 9100 26.4 24.2 109 25.7 25.2 102 MADISON PLATEAU 7750 18.4 16.5 112 20.2 18.0 112 NORTHEAST ENTRANCE 7350 8.8 7.9 111 10.7 9.1 118 PARKER PEAK 9400 19.6 15.1 130 17.9 11.4 157 SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.1 128 THUMB DIVIDE 7980 13.7 12.1 113 13.9 13.0 107 TWO OCEAN PLATEAU 9240 23.0 19.4 119 19.1 18.9 101 WHISKEY CREEK 6800 13.0 11.3 115 15.7 14.1 111 WHITE MILL 8700 18.3 16.4 112 19.1 18.7 102 WOLVERINE 7650 11.3 8.8 128 10.4 9.4 111 ----- ----- Basin wide percent of average 114 112 WIND RIVER BURROUGHS CREEK 8750 10.1 10.3 98 10.6 11.5 92 CASTLE CREEK 8400 4.4 -M * 5.0 -M * COLD SPRINGS 9630 5.9 6.1 97 6.1 7.2 85 DEER PARK 9700 14.2 11.6 122 15.3 15.0 102 HOBBS PARK 10100 9.5 9.9 96 8.7 8.4 104 LITTLE WARM 9370 8.1 7.9 103 8.5 9.3 91 SOUTH PASS 9040 11.6 11.5 101 10.2 12.6 81 ST. LAWRENCE ALT 8620 3.8 4.8 79 4.6 5.8 79 TOGWOTEE PASS 9580 20.0 17.3 116 21.4 17.2 124 TOWNSEND CREEK 8700 -M 5.6 * -M 7.5 * ----- ----- Basin wide percent of average 105 98 BIGHORN BASIN BALD MTN. 9380 16.1 13.7 118 13.4 12.0 112 BEAR TRAP MEADOW 8200 5.6 3.6 156 6.3 5.6 113 BLACKWATER 9780 18.0 16.8 107 17.6 14.5 121 BONE SPRINGS DIV 9350 12.9 10.8 119 11.1 9.8 113 EVENING STAR 9200 22.5 20.1 112 25.0 18.0 139 GRAVE SPRINGS 8550 5.1 6.0 85 5.4 6.5 83 KIRWIN 9550 7.9 7.8 101 8.8 7.8 113 MARQUETTE 8760 2.0 6.0 33 4.7 6.3 75 MIDDLE POWDER 7760 6.6 7.5 88 8.4 8.4 100 OWL CREEK 8975 3.3 3.5 94 3.5 3.8 92 POWDER RIVER PASS 9480 10.0 7.4 135 11.8 8.5 139 SHELL CREEK 9580 11.7 10.1 116 10.5 9.5 111 SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.1 128 SYLVAN ROAD 7120 10.8 9.0 120 14.4 13.6 106 TIMBER CREEK 7950 2.6 3.7 70 3.2 4.6 70 YOUNTS PEAK 8350 11.8 12.2 97 10.5 11.6 91 ----- ----- Basin wide percent of average 106 112 SHOSHONE RIVER BLACKWATER 9780 18.0 16.8 107 17.6 14.5 121 EVENING STAR 9200 22.5 20.1 112 25.0 18.0 139 KIRWIN 9550 7.9 7.8 101 8.8 7.8 113 MARQUETTE 8760 2.0 6.0 33 4.7 6.3 75 SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.1 128 SYLVAN ROAD 7120 10.8 9.0 120 14.4 13.6 106 YOUNTS PEAK 8350 11.8 12.2 97 10.5 11.6 91 ----- ----- Basin wide percent of average 102 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.6 3.6 156 6.3 5.6 113 BIG GOOSE 7990 5.1 6.2 82 6.7 5.8 116 BONE SPRINGS DIV 9350 12.9 10.8 119 11.1 9.8 113 BURGESS JUNCTION 7880 6.8 7.5 91 7.9 8.1 98 CLOUD PEAK RESERVOIR 9860 10.3 8.2 126 10.3 8.4 123 DOME LAKE 8880 7.5 8.1 93 9.0 8.9 101 GRAVE SPRINGS 8550 5.1 6.0 85 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 6.6 7.5 88 8.4 8.4 100 POWDER RIVER PASS 9480 10.0 7.4 135 11.8 8.5 139 SOLDIER PARK 8720 4.5 -M * 5.9 -M * SUCKER CREEK 8880 8.7 7.4 118 9.5 9.0 106 TIE CREEK 6870 4.4 4.2 105 6.6 6.9 96 ----- ----- Basin wide percent of average 108 107 BELLE FOURCHE BLIND PARK 6890 6.2 5.5 113 12.0 8.0 150 COLE CANYON 5910 5.3 4.6 115 8.4 4.8 175 NORTH RAPID CREEK 6130 5.8 5.2 112 10.1 6.4 158 ----- ----- Basin wide percent of average 113 159 UPPER N. PLATTE RIVER CINNABAR PARK 9574 18.1 13.5 134 21.4 14.6 147 COLUMBINE 9160 21.9 17.1 128 23.7 17.1 139 DIVIDE PEAK 8880 14.5 13.2 110 18.5 14.0 132 ELK RIVER 8700 16.0 12.7 126 18.1 13.0 139 JOE WRIGHT 10120 18.5 14.3 129 23.7 16.6 143 NORTH FRENCH CREEK 10130 29.5 18.8 157 27.9 16.7 167 OLD BATTLE 10000 28.9 20.6 140 26.7 23.0 116 SAGE CREEK BASIN 7850 13.4 7.7 174 13.1 8.1 162 SOUTH BRUSH CREEK 8440 11.7 7.7 152 14.8 11.1 133 TOWER 10500 37.3 30.9 121 35.3 26.1 135 WEBBER SPRINGS 9250 20.1 16.6 121 24.9 18.4 135 WILLOW CREEK PASS 9540 12.4 7.7 161 12.1 8.5 142 ----- ----- Basin wide percent of average 134 139 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.5 15.7 131 21.5 14.6 147 CASPER MTN. 7900 7.6 9.3 82 10.2 9.1 112 DEADMAN HILL 10220 -M 10.8 * -M 10.8 * DEER PARK 9700 14.2 11.6 122 15.3 15.0 102 LAPRELE CREEK 8375 8.2 7.4 111 9.5 8.3 114 RENO HILL 8400 9.4 8.6 109 11.3 9.5 119 ROACH 9700 13.7 11.3 121 16.8 11.9 141 SAND LAKE 10050 24.4 20.4 120 22.9 16.2 141 SOUTH PASS 9040 11.6 11.5 101 10.2 12.6 81 WINDY PEAK 7900 6.5 4.7 138 9.1 7.1 128 ----- ----- Basin wide percent of average 116 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.6 8.0 33 10.4 10.1 103 DIVIDE PEAK 8880 14.5 13.2 110 18.5 14.0 132 OLD BATTLE 10000 28.9 20.6 140 26.7 23.0 116 SANDSTONE RS 8150 -M 10.0 * -M 12.8 * WHISKEY PARK 8950 -M 19.1 * 27.0 19.8 136 ----- ----- Basin wide percent of average 110 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.8 9.8 100 10.3 9.2 112 BLIND BULL SUM 8650 20.2 18.9 107 14.7 15.8 93 EAST RIM DIVIDE 7930 9.7 8.8 110 8.9 8.3 107 ELKHART PARK G.S. 9400 8.8 9.0 98 9.0 9.1 99 GROS VENTRE SUMMIT 8750 10.3 9.7 106 10.2 8.8 116 GUNSIGHT PASS 9820 11.6 -M * 11.9 -M * KENDALL R.S. 7740 8.7 10.1 86 10.5 10.0 105 LOOMIS PARK 8240 12.7 11.6 109 13.8 12.1 114 NEW FORK LAKE 8340 8.4 7.9 106 8.1 8.0 101 POCKET CREEK 9360 7.6 -M * 9.9 -M * SNIDER BASIN 8060 13.9 10.1 138 14.0 11.3 124 SPRING CREEK DIVIDE 9000 24.0 17.9 134 23.5 18.7 126 TRIPLE PEAK 8500 21.4 17.1 125 22.8 16.6 137 ----- ----- Basin wide percent of average 113 114 LOWER GREEN RIVER HAMS FORK 7840 11.2 8.6 130 11.7 8.6 136 HEWINTA 9519 7.8 6.9 113 11.7 9.5 123 HICKERSON PARK 9145 4.5 4.6 98 6.3 5.3 119 HOLE-IN-ROCK 9150 5.0 4.3 116 6.6 4.9 135 INDIAN CREEK 9425 22.0 18.1 122 20.4 17.2 119 KELLEY R.S. 8180 14.6 11.0 133 17.3 14.2 122 STEEL CREEK PARK 10200 11.3 9.7 116 14.3 10.4 138 ----- ----- Basin wide percent of average 121 126 UPPER BEAR RIVER BUG LAKE 7950 18.8 13.6 138 20.3 13.2 154 HAYDEN FORK 9212 14.2 10.1 141 20.6 13.9 148 KELLEY R.S. 8180 14.6 11.0 133 17.3 14.2 122 LILY LAKE 9156 12.9 8.5 152 15.4 11.7 132 MONTE CRISTO 8960 23.3 18.9 123 24.9 17.2 145 SALT RIVER SUMMIT 7760 11.2 9.6 117 15.5 12.9 120 TRIAL LAKE 9992 23.9 16.2 148 24.6 16.3 151 ----- ----- 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.