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: JANUARY 18 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 12.9 10.7 121 15.7 13.0 121 COTTONWOOD CREEK 7670 18.1 12.3 147 22.4 16.7 134 GRAND TARGHEE 9260 31.0 -M * 22.9 -M * GRANITE CREEK 6770 12.6 10.3 122 14.9 11.9 125 GRASSY LAKE 7265 22.6 19.3 117 25.5 21.9 116 GROS VENTRE SUMMIT 8750 9.3 8.4 111 9.3 7.7 121 GUNSIGHT PASS 9820 10.6 -M * 10.9 -M * LEWIS LAKE DIVIDE 7850 22.5 19.3 117 23.2 21.8 106 PHILLIPS BENCH 8200 19.2 15.9 121 20.6 17.0 121 SALT RIVER SUMMIT 7760 10.4 7.5 139 14.4 11.1 130 SNAKE RIVER STATION 6920 9.8 10.4 94 16.9 13.6 124 SPRING CREEK DIVIDE 9000 21.9 15.2 144 22.0 16.2 136 THUMB DIVIDE 7980 12.9 9.9 130 13.3 11.3 118 TOGWOTEE PASS 9580 18.2 14.6 125 19.4 14.8 131 TWO OCEAN PLATEAU 9240 21.5 16.5 130 16.9 16.3 104 WILLOW CREEK 8380 20.7 17.6 118 25.4 19.2 132 ----- ----- Basin wide percent of average 124 122 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 15.5 14.4 108 15.3 12.3 124 BLACK BEAR 8170 27.6 22.3 124 26.9 22.5 120 CANYON 7870 9.9 7.8 127 11.2 9.5 118 FISHER CREEK 9100 23.8 21.0 113 22.9 21.5 107 MADISON PLATEAU 7750 17.3 14.3 121 19.1 15.2 126 NORTHEAST ENTRANCE 7350 7.4 6.7 110 9.6 7.8 123 PARKER PEAK 9400 17.6 13.1 134 16.8 9.8 171 SYLVAN LAKE 8420 14.8 13.2 112 18.0 13.1 137 THUMB DIVIDE 7980 12.9 9.9 130 13.3 11.3 118 TWO OCEAN PLATEAU 9240 21.5 16.5 130 16.9 16.3 104 WHISKEY CREEK 6800 12.2 9.6 127 14.7 12.2 120 WHITE MILL 8700 16.3 14.3 114 17.3 15.9 109 WOLVERINE 7650 9.8 7.6 129 9.1 8.2 111 ----- ----- Basin wide percent of average 121 120 WIND RIVER BURROUGHS CREEK 8750 9.3 9.0 103 9.8 10.0 98 CASTLE CREEK 8400 4.0 -M * 4.8 -M * COLD SPRINGS 9630 5.5 5.5 100 5.5 6.5 85 DEER PARK 9700 13.5 9.7 139 14.5 12.9 112 HOBBS PARK 10100 9.2 9.0 102 8.4 7.4 114 LITTLE WARM 9370 7.3 6.9 106 7.4 8.2 90 SOUTH PASS 9040 11.0 10.0 110 9.7 10.8 90 ST. LAWRENCE ALT 8620 3.6 4.4 82 4.4 5.2 85 TOGWOTEE PASS 9580 18.2 14.6 125 19.4 14.8 131 TOWNSEND CREEK 8700 5.1 5.1 100 7.1 6.7 106 ----- ----- Basin wide percent of average 111 104 BIGHORN BASIN BALD MTN. 9380 13.5 12.0 113 11.9 10.4 114 BEAR TRAP MEADOW 8200 4.6 3.1 148 5.5 5.0 110 BLACKWATER 9780 16.3 14.7 111 15.8 12.7 124 BONE SPRINGS DIV 9350 10.6 9.6 110 9.5 8.6 110 EVENING STAR 9200 20.3 17.4 117 22.4 15.7 143 GRAVE SPRINGS 8550 4.2 5.0 84 4.6 5.9 78 KIRWIN 9550 7.4 7.1 104 8.1 6.9 117 MARQUETTE 8760 1.7 5.5 31 4.4 5.8 76 MIDDLE POWDER 7760 5.8 6.5 89 4.0 7.6 53 OWL CREEK 8975 2.9 3.1 94 3.3 3.3 100 POWDER RIVER PASS 9480 8.3 6.5 128 9.3 7.3 127 SHELL CREEK 9580 9.8 9.0 109 8.7 8.1 107 SYLVAN LAKE 8420 14.8 13.2 112 18.0 13.1 137 SYLVAN ROAD 7120 9.9 7.8 127 13.1 12.0 109 TIMBER CREEK 7950 2.3 3.4 68 2.8 4.1 68 YOUNTS PEAK 8350 10.8 10.4 104 9.6 10.1 95 ----- ----- Basin wide percent of average 107 111 SHOSHONE RIVER BLACKWATER 9780 16.3 14.7 111 15.8 12.7 124 EVENING STAR 9200 20.3 17.4 117 22.4 15.7 143 KIRWIN 9550 7.4 7.1 104 8.1 6.9 117 MARQUETTE 8760 1.7 5.5 31 4.4 5.8 76 SYLVAN LAKE 8420 14.8 13.2 112 18.0 13.1 137 SYLVAN ROAD 7120 9.9 7.8 127 13.1 12.0 109 YOUNTS PEAK 8350 10.8 10.4 104 9.6 10.1 95 ----- ----- Basin wide percent of average 107 120 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.6 3.1 148 5.5 5.0 110 BIG GOOSE 7990 3.8 5.3 72 5.4 4.9 110 BONE SPRINGS DIV 9350 10.6 9.6 110 9.5 8.6 110 BURGESS JUNCTION 7880 4.7 6.7 70 6.0 7.1 85 CLOUD PEAK RESERVOIR 9860 8.3 7.2 115 8.6 7.4 116 DOME LAKE 8880 5.3 7.2 74 7.0 7.9 89 GRAVE SPRINGS 8550 4.2 5.0 84 4.6 5.9 78 HANSEN SAWMILL 8360 4.1 3.8 108 4.4 4.8 92 LITTLE GOOSE 8870 4.6 -M * 8.3 -M * MIDDLE POWDER 7760 5.8 6.5 89 4.0 7.6 53 POWDER RIVER PASS 9480 8.3 6.5 128 9.3 7.3 127 SOLDIER PARK 8720 3.6 -M * 5.1 -M * SUCKER CREEK 8880 6.5 6.4 102 7.2 7.8 92 TIE CREEK 6870 3.0 3.7 81 4.9 6.0 82 ----- ----- Basin wide percent of average 97 95 BELLE FOURCHE BLIND PARK 6890 4.4 4.6 96 10.0 7.1 141 COLE CANYON 5910 4.5 3.9 115 7.0 4.4 159 NORTH RAPID CREEK 6130 4.7 4.2 112 8.8 5.9 149 ----- ----- Basin wide percent of average 107 148 UPPER N. PLATTE RIVER CINNABAR PARK 9574 15.9 12.1 131 19.0 13.3 143 COLUMBINE 9160 19.3 13.5 143 21.4 14.5 148 DIVIDE PEAK 8880 12.9 11.4 113 16.9 12.2 139 ELK RIVER 8700 14.4 10.0 144 16.8 11.1 151 JOE WRIGHT 10120 16.2 12.0 135 22.0 14.4 153 NORTH FRENCH CREEK 10130 26.4 16.3 162 25.7 14.5 177 OLD BATTLE 10000 26.4 17.5 151 26.5 19.7 135 SAGE CREEK BASIN 7850 11.4 6.6 173 12.0 7.1 169 SOUTH BRUSH CREEK 8440 10.6 6.4 166 14.0 9.5 147 TOWER 10500 33.7 25.8 131 34.8 22.2 157 WEBBER SPRINGS 9250 17.8 13.9 128 22.6 16.1 140 WILLOW CREEK PASS 9540 11.3 6.6 171 11.4 7.4 154 ----- ----- Basin wide percent of average 142 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 17.6 13.4 131 18.5 12.6 147 CASPER MTN. 7900 6.5 8.1 80 9.2 8.1 114 DEADMAN HILL 10220 8.1 9.3 87 14.1 9.4 150 DEER PARK 9700 13.5 9.7 139 14.5 12.9 112 LAPRELE CREEK 8375 6.7 6.4 105 7.9 7.3 108 RENO HILL 8400 8.1 7.6 107 10.0 8.5 118 ROACH 9700 12.5 9.3 134 15.8 10.3 153 SAND LAKE 10050 21.5 17.7 121 20.4 14.2 144 SOUTH PASS 9040 11.0 10.0 110 9.7 10.8 90 WINDY PEAK 7900 5.1 4.0 128 7.5 6.4 117 ----- ----- Basin wide percent of average 116 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.1 6.2 98 9.7 8.7 111 DIVIDE PEAK 8880 12.9 11.4 113 16.9 12.2 139 OLD BATTLE 10000 26.4 17.5 151 26.5 19.7 135 SANDSTONE RS 8150 8.2 7.7 106 16.2 11.0 147 WHISKEY PARK 8950 -M 15.2 * 24.4 17.0 144 ----- ----- Basin wide percent of average 125 137 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.6 8.3 116 10.1 8.0 126 BLIND BULL SUM 8650 18.3 16.2 113 13.6 13.6 100 EAST RIM DIVIDE 7930 8.4 7.3 115 8.1 7.1 114 ELKHART PARK G.S. 9400 8.1 7.7 105 8.5 8.0 106 GROS VENTRE SUMMIT 8750 9.3 8.4 111 9.3 7.7 121 GUNSIGHT PASS 9820 10.6 -M * 10.9 -M * KENDALL R.S. 7740 7.8 8.5 92 9.5 8.5 112 LOOMIS PARK 8240 11.5 9.8 117 12.6 10.4 121 NEW FORK LAKE 8340 7.8 6.7 116 7.3 7.1 103 POCKET CREEK 9360 7.5 -M * 9.4 -M * SNIDER BASIN 8060 12.8 8.5 151 13.2 9.8 135 SPRING CREEK DIVIDE 9000 21.9 15.2 144 22.0 16.2 136 TRIPLE PEAK 8500 18.8 14.6 129 20.9 14.1 148 ----- ----- Basin wide percent of average 121 122 LOWER GREEN RIVER HAMS FORK 7840 10.0 7.1 141 10.4 7.3 142 HEWINTA 9519 6.4 5.5 116 10.7 8.2 130 HICKERSON PARK 9145 3.6 3.7 97 5.5 4.7 117 HOLE-IN-ROCK 9150 4.3 3.4 126 5.8 4.4 132 INDIAN CREEK 9425 20.1 15.4 131 18.7 14.9 126 KELLEY R.S. 8180 13.2 9.2 143 16.1 12.4 130 STEEL CREEK PARK 10200 9.7 8.1 120 12.8 9.0 142 ----- ----- Basin wide percent of average 128 131 UPPER BEAR RIVER BUG LAKE 7950 17.2 11.0 156 18.5 11.3 164 HAYDEN FORK 9212 12.1 8.2 148 19.5 12.1 161 KELLEY R.S. 8180 13.2 9.2 143 16.1 12.4 130 LILY LAKE 9156 11.0 6.9 159 14.2 10.2 139 MONTE CRISTO 8960 20.7 14.9 139 23.1 14.7 157 SALT RIVER SUMMIT 7760 10.4 7.5 139 14.4 11.1 130 TRIAL LAKE 9992 22.4 13.3 168 23.5 13.9 169 ----- ----- Basin wide percent of average 151 151 ----------------------------------------------------------------------------- -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.