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 MONDAY: JANUARY 31 , 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 12.6 112 16.8 14.7 114 COTTONWOOD CREEK 7670 18.6 14.1 132 24.2 18.5 131 GRAND TARGHEE 9260 33.6 -M * 24.5 -M * GRANITE CREEK 6770 13.7 12.2 112 16.0 13.6 118 GRASSY LAKE 7265 24.6 22.7 108 27.5 24.8 111 GROS VENTRE SUMMIT 8750 10.2 9.4 109 10.1 8.6 117 GUNSIGHT PASS 9820 11.6 -M * 11.8 -M * LEWIS LAKE DIVIDE 7850 23.9 22.8 105 24.5 24.7 99 PHILLIPS BENCH 8200 20.8 18.4 113 22.1 19.4 114 SALT RIVER SUMMIT 7760 11.5 9.1 126 15.6 12.5 125 SNAKE RIVER STATION 6920 -M 12.5 * 18.0 15.4 117 SPRING CREEK DIVIDE 9000 24.1 17.2 140 23.6 18.2 130 THUMB DIVIDE 7980 13.9 11.6 120 14.0 12.6 111 TOGWOTEE PASS 9580 20.0 16.7 120 21.3 16.7 128 TWO OCEAN PLATEAU 9240 23.0 18.8 122 19.2 18.3 105 WILLOW CREEK 8380 22.8 20.1 113 28.0 21.6 130 ----- ----- Basin wide percent of average 117 117 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.3 16.1 107 16.9 13.9 122 BLACK BEAR 8170 29.3 25.4 115 29.0 25.9 112 CANYON 7870 10.9 8.9 122 12.4 10.7 116 FISHER CREEK 9100 26.5 23.6 112 25.6 24.4 105 MADISON PLATEAU 7750 18.4 16.1 114 20.2 17.3 117 NORTHEAST ENTRANCE 7350 8.7 7.7 113 10.7 8.8 122 PARKER PEAK 9400 19.6 14.7 133 18.1 11.0 165 SYLVAN LAKE 8420 16.1 15.0 107 19.4 14.7 132 THUMB DIVIDE 7980 13.9 11.6 120 14.0 12.6 111 TWO OCEAN PLATEAU 9240 23.0 18.8 122 19.2 18.3 105 WHISKEY CREEK 6800 13.2 11.0 120 15.6 13.7 114 WHITE MILL 8700 18.3 15.9 115 19.1 18.1 106 WOLVERINE 7650 11.4 8.6 133 10.4 9.1 114 ----- ----- Basin wide percent of average 117 116 WIND RIVER BURROUGHS CREEK 8750 10.1 10.1 100 10.6 11.2 95 CASTLE CREEK 8400 4.3 -M * 5.0 -M * COLD SPRINGS 9630 5.8 6.0 97 5.7 7.1 80 DEER PARK 9700 14.1 11.7 121 15.3 14.4 106 HOBBS PARK 10100 9.5 9.8 97 8.6 8.1 106 LITTLE WARM 9370 8.1 7.7 105 8.5 9.0 94 SOUTH PASS 9040 11.6 11.3 103 10.2 12.1 84 ST. LAWRENCE ALT 8620 3.7 4.7 79 4.5 5.7 79 TOGWOTEE PASS 9580 20.0 16.7 120 21.3 16.7 128 TOWNSEND CREEK 8700 5.5 5.6 98 7.4 7.3 101 ----- ----- Basin wide percent of average 106 101 BIGHORN BASIN BALD MTN. 9380 16.0 13.4 119 13.4 11.7 115 BEAR TRAP MEADOW 8200 5.5 3.5 157 5.9 5.5 107 BLACKWATER 9780 17.9 16.4 109 17.4 14.1 123 BONE SPRINGS DIV 9350 12.9 10.5 123 11.1 9.5 117 EVENING STAR 9200 22.5 19.5 115 24.9 17.5 142 GRAVE SPRINGS 8550 5.0 5.6 89 5.4 6.4 84 KIRWIN 9550 7.8 7.6 103 8.6 7.6 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.2 74 MIDDLE POWDER 7760 6.4 7.1 90 4.3 8.3 52 OWL CREEK 8975 3.2 3.4 94 3.3 3.7 89 POWDER RIVER PASS 9480 10.0 7.2 139 11.7 8.2 143 SHELL CREEK 9580 11.7 9.9 118 10.4 9.2 113 SYLVAN LAKE 8420 16.1 15.0 107 19.4 14.7 132 SYLVAN ROAD 7120 10.8 8.6 126 14.3 13.2 108 TIMBER CREEK 7950 2.7 3.6 75 3.2 4.5 71 YOUNTS PEAK 8350 11.8 11.9 99 10.5 11.3 93 ----- ----- Basin wide percent of average 109 111 SHOSHONE RIVER BLACKWATER 9780 17.9 16.4 109 17.4 14.1 123 EVENING STAR 9200 22.5 19.5 115 24.9 17.5 142 KIRWIN 9550 7.8 7.6 103 8.6 7.6 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.2 74 SYLVAN LAKE 8420 16.1 15.0 107 19.4 14.7 132 SYLVAN ROAD 7120 10.8 8.6 126 14.3 13.2 108 YOUNTS PEAK 8350 11.8 11.9 99 10.5 11.3 93 ----- ----- Basin wide percent of average 105 118 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 3.5 157 5.9 5.5 107 BIG GOOSE 7990 5.2 5.9 88 6.7 5.6 120 BONE SPRINGS DIV 9350 12.9 10.5 123 11.1 9.5 117 BURGESS JUNCTION 7880 6.7 7.4 91 7.8 7.9 99 CLOUD PEAK RESERVOIR 9860 10.2 8.0 128 9.9 8.2 121 DOME LAKE 8880 7.4 7.9 94 8.6 8.6 100 GRAVE SPRINGS 8550 5.0 5.6 89 5.4 6.4 84 HANSEN SAWMILL 8360 4.7 4.2 112 5.0 5.3 94 LITTLE GOOSE 8870 5.9 -M * 9.8 -M * MIDDLE POWDER 7760 6.4 7.1 90 4.3 8.3 52 POWDER RIVER PASS 9480 10.0 7.2 139 11.7 8.2 143 SOLDIER PARK 8720 4.5 -M * 5.9 -M * SUCKER CREEK 8880 8.6 7.1 121 9.4 8.7 108 TIE CREEK 6870 4.3 4.0 108 6.4 6.8 94 ----- ----- Basin wide percent of average 111 104 BELLE FOURCHE BLIND PARK 6890 6.0 5.2 115 11.8 7.8 151 COLE CANYON 5910 5.5 4.4 125 8.2 4.7 174 NORTH RAPID CREEK 6130 5.8 4.9 118 9.6 6.3 152 ----- ----- Basin wide percent of average 119 157 UPPER N. PLATTE RIVER CINNABAR PARK 9574 18.0 13.1 137 21.3 14.3 149 COLUMBINE 9160 21.8 16.2 135 24.0 16.5 145 DIVIDE PEAK 8880 14.3 12.9 111 18.1 13.6 133 ELK RIVER 8700 15.9 12.1 131 18.1 12.6 144 JOE WRIGHT 10120 18.5 13.7 135 23.9 16.1 148 NORTH FRENCH CREEK 10130 29.3 18.3 160 27.8 16.2 172 OLD BATTLE 10000 28.9 19.9 145 26.8 22.2 121 SAGE CREEK BASIN 7850 12.4 7.5 165 13.1 7.9 166 SOUTH BRUSH CREEK 8440 11.4 7.3 156 14.8 10.8 137 TOWER 10500 37.2 29.8 125 35.5 25.2 141 WEBBER SPRINGS 9250 20.0 15.9 126 24.7 17.9 138 WILLOW CREEK PASS 9540 12.2 7.5 163 12.1 8.3 146 ----- ----- Basin wide percent of average 138 143 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.5 15.2 135 21.3 14.1 151 CASPER MTN. 7900 7.6 9.0 84 10.1 8.9 113 DEADMAN HILL 10220 -M 10.5 * -M 10.5 * DEER PARK 9700 14.1 11.7 121 15.3 14.4 106 LAPRELE CREEK 8375 8.1 7.2 113 9.2 8.1 114 RENO HILL 8400 9.2 8.4 110 11.1 9.3 119 ROACH 9700 13.5 10.9 124 16.8 11.6 145 SAND LAKE 10050 24.3 19.8 123 23.0 15.8 146 SOUTH PASS 9040 11.6 11.3 103 10.2 12.1 84 WINDY PEAK 7900 6.2 4.5 138 8.6 6.9 125 ----- ----- Basin wide percent of average 117 124 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.0 7.7 39 10.2 9.8 104 DIVIDE PEAK 8880 14.3 12.9 111 18.1 13.6 133 OLD BATTLE 10000 28.9 19.9 145 26.8 22.2 121 SANDSTONE RS 8150 -M 9.6 * -M 12.4 * WHISKEY PARK 8950 -M 18.3 * 27.0 19.2 141 ----- ----- Basin wide percent of average 114 127 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.8 9.4 104 10.3 8.9 116 BLIND BULL SUM 8650 20.3 18.3 111 14.8 15.3 97 EAST RIM DIVIDE 7930 9.8 8.4 117 8.9 8.0 111 ELKHART PARK G.S. 9400 8.7 8.7 100 9.0 8.8 102 GROS VENTRE SUMMIT 8750 10.2 9.4 109 10.1 8.6 117 GUNSIGHT PASS 9820 11.6 -M * 11.8 -M * KENDALL R.S. 7740 8.8 9.7 91 10.5 9.7 108 LOOMIS PARK 8240 12.8 11.1 115 13.8 11.7 118 NEW FORK LAKE 8340 8.3 7.6 109 7.9 7.8 101 POCKET CREEK 9360 7.6 -M * 9.8 -M * SNIDER BASIN 8060 14.1 9.7 145 14.0 11.0 127 SPRING CREEK DIVIDE 9000 24.1 17.2 140 23.6 18.2 130 TRIPLE PEAK 8500 21.4 16.5 130 22.8 16.0 143 ----- ----- Basin wide percent of average 118 118 LOWER GREEN RIVER HAMS FORK 7840 11.2 8.3 135 11.4 8.3 137 HEWINTA 9519 7.6 6.6 115 11.5 9.2 125 HICKERSON PARK 9145 4.2 4.4 95 6.0 5.2 115 HOLE-IN-ROCK 9150 4.8 4.1 117 6.4 4.7 136 INDIAN CREEK 9425 22.1 17.4 127 20.4 16.7 122 KELLEY R.S. 8180 14.5 10.6 137 17.3 13.8 125 STEEL CREEK PARK 10200 11.1 9.3 119 13.9 10.1 138 ----- ----- Basin wide percent of average 124 128 UPPER BEAR RIVER BUG LAKE 7950 18.7 13.0 144 20.3 12.8 159 HAYDEN FORK 9212 13.8 9.7 142 20.6 13.5 153 KELLEY R.S. 8180 14.5 10.6 137 17.3 13.8 125 LILY LAKE 9156 12.4 8.1 153 14.9 11.4 131 MONTE CRISTO 8960 22.8 18.0 127 24.7 16.6 149 SALT RIVER SUMMIT 7760 11.5 9.1 126 15.6 12.5 125 TRIAL LAKE 9992 23.8 15.5 154 24.5 15.7 156 ----- ----- Basin wide percent of average 140 143 ----------------------------------------------------------------------------- -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.