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 WEDNESDAY: FEBRUARY 2 , 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 12.8 108 17.0 15.0 113 COTTONWOOD CREEK 7670 18.3 14.4 127 24.1 18.8 128 GRAND TARGHEE 9260 33.2 -M * 24.0 -M * GRANITE CREEK 6770 13.5 12.5 108 15.8 13.9 114 GRASSY LAKE 7265 24.2 23.2 104 26.8 25.3 106 GROS VENTRE SUMMIT 8750 10.0 9.5 105 9.6 8.7 110 GUNSIGHT PASS 9820 11.4 -M * 11.5 -M * LEWIS LAKE DIVIDE 7850 23.6 23.3 101 23.9 25.1 95 PHILLIPS BENCH 8200 20.6 18.7 110 21.7 19.7 110 SALT RIVER SUMMIT 7760 11.1 9.4 118 14.9 12.7 117 SNAKE RIVER STATION 6920 12.8 12.8 100 17.9 15.7 114 SPRING CREEK DIVIDE 9000 23.8 17.5 136 23.1 18.5 125 THUMB DIVIDE 7980 13.3 11.9 112 14.0 12.8 109 TOGWOTEE PASS 9580 19.8 17.0 116 21.1 17.0 124 TWO OCEAN PLATEAU 9240 22.8 19.1 119 18.6 18.6 100 WILLOW CREEK 8380 23.0 20.4 113 27.9 22.0 127 ----- ----- Basin wide percent of average 113 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.3 16.3 106 16.9 14.1 120 BLACK BEAR 8170 29.3 25.8 114 29.0 26.4 110 CANYON 7870 11.1 9.0 123 12.4 10.9 114 FISHER CREEK 9100 26.5 24.0 110 25.6 24.8 103 MADISON PLATEAU 7750 18.4 16.3 113 20.2 17.7 114 NORTHEAST ENTRANCE 7350 8.8 7.8 113 10.7 9.0 119 PARKER PEAK 9400 19.6 14.9 132 18.1 11.2 162 SYLVAN LAKE 8420 16.1 15.3 105 19.4 14.9 130 THUMB DIVIDE 7980 13.3 11.9 112 14.0 12.8 109 TWO OCEAN PLATEAU 9240 22.8 19.1 119 18.6 18.6 100 WHISKEY CREEK 6800 13.2 11.2 118 15.6 13.9 112 WHITE MILL 8700 18.3 16.2 113 19.1 18.4 104 WOLVERINE 7650 11.5 8.7 132 10.4 9.3 112 ----- ----- Basin wide percent of average 115 114 WIND RIVER BURROUGHS CREEK 8750 10.1 10.2 99 10.6 11.4 93 CASTLE CREEK 8400 4.3 -M * 5.0 -M * COLD SPRINGS 9630 5.9 6.0 98 5.8 7.1 82 DEER PARK 9700 14.1 11.7 121 15.3 14.7 104 HOBBS PARK 10100 9.6 9.9 97 8.7 8.3 105 LITTLE WARM 9370 8.1 7.8 104 8.5 9.2 92 SOUTH PASS 9040 11.6 11.4 102 10.2 12.3 83 ST. LAWRENCE ALT 8620 3.8 4.8 79 4.6 5.7 81 TOGWOTEE PASS 9580 19.8 17.0 116 21.1 17.0 124 TOWNSEND CREEK 8700 -M 5.6 * -M 7.4 * ----- ----- Basin wide percent of average 105 99 BIGHORN BASIN BALD MTN. 9380 16.0 13.6 118 13.4 11.9 113 BEAR TRAP MEADOW 8200 5.5 3.6 153 5.9 5.5 107 BLACKWATER 9780 17.9 16.7 107 17.4 14.3 122 BONE SPRINGS DIV 9350 12.9 10.7 121 11.1 9.7 114 EVENING STAR 9200 22.5 19.9 113 24.9 17.7 141 GRAVE SPRINGS 8550 5.1 5.8 88 5.4 6.4 84 KIRWIN 9550 7.9 7.7 103 8.7 7.7 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.2 74 MIDDLE POWDER 7760 6.5 7.2 90 4.4 8.3 53 OWL CREEK 8975 3.3 3.4 97 3.4 3.7 92 POWDER RIVER PASS 9480 10.1 7.3 138 11.7 8.4 139 SHELL CREEK 9580 11.7 10.0 117 10.6 9.4 113 SYLVAN LAKE 8420 16.1 15.3 105 19.4 14.9 130 SYLVAN ROAD 7120 10.8 8.9 121 14.3 13.4 107 TIMBER CREEK 7950 2.7 3.7 73 3.2 4.5 71 YOUNTS PEAK 8350 11.8 12.1 98 10.5 11.5 91 ----- ----- Basin wide percent of average 107 110 SHOSHONE RIVER BLACKWATER 9780 17.9 16.7 107 17.4 14.3 122 EVENING STAR 9200 22.5 19.9 113 24.9 17.7 141 KIRWIN 9550 7.9 7.7 103 8.7 7.7 113 MARQUETTE 8760 2.0 5.9 34 4.6 6.2 74 SYLVAN LAKE 8420 16.1 15.3 105 19.4 14.9 130 SYLVAN ROAD 7120 10.8 8.9 121 14.3 13.4 107 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 5.9 5.5 107 BIG GOOSE 7990 5.2 6.1 85 6.2 5.7 109 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 8.1 126 9.9 8.3 119 DOME LAKE 8880 7.4 8.0 93 8.8 8.8 100 GRAVE SPRINGS 8550 5.1 5.8 88 5.4 6.4 84 HANSEN SAWMILL 8360 4.7 4.2 112 5.0 5.3 94 LITTLE GOOSE 8870 6.0 -M * 9.9 -M * MIDDLE POWDER 7760 6.5 7.2 90 4.4 8.3 53 POWDER RIVER PASS 9480 10.1 7.3 138 11.7 8.4 139 SOLDIER PARK 8720 4.5 -M * 5.9 -M * SUCKER CREEK 8880 8.6 7.3 118 9.4 8.9 106 TIE CREEK 6870 4.3 4.0 108 6.4 6.8 94 ----- ----- Basin wide percent of average 109 102 BELLE FOURCHE BLIND PARK 6890 6.0 5.3 113 11.9 7.9 151 COLE CANYON 5910 5.6 4.6 122 8.3 4.7 177 NORTH RAPID CREEK 6130 5.8 5.1 114 9.6 6.4 150 ----- ----- Basin wide percent of average 116 157 UPPER N. PLATTE RIVER CINNABAR PARK 9574 18.0 13.3 135 21.2 14.4 147 COLUMBINE 9160 21.7 16.7 130 23.3 16.8 139 DIVIDE PEAK 8880 14.3 13.1 109 17.9 13.8 130 ELK RIVER 8700 16.0 12.4 129 17.8 12.8 139 JOE WRIGHT 10120 17.9 14.0 128 22.9 16.3 140 NORTH FRENCH CREEK 10130 29.5 18.5 159 27.8 16.5 168 OLD BATTLE 10000 28.7 20.2 142 26.2 22.6 116 SAGE CREEK BASIN 7850 13.4 7.6 176 13.2 8.0 165 SOUTH BRUSH CREEK 8440 11.7 7.5 156 14.5 10.9 133 TOWER 10500 37.3 30.3 123 35.1 25.6 137 WEBBER SPRINGS 9250 20.1 16.2 124 24.5 18.2 135 WILLOW CREEK PASS 9540 12.4 7.6 163 12.0 8.4 143 ----- ----- Basin wide percent of average 136 139 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.2 15.5 130 21.6 14.4 150 CASPER MTN. 7900 7.6 9.1 84 10.3 9.0 114 DEADMAN HILL 10220 -M 10.7 * -M 10.7 * DEER PARK 9700 14.1 11.7 121 15.3 14.7 104 LAPRELE CREEK 8375 7.9 7.3 108 9.1 8.2 111 RENO HILL 8400 9.3 8.5 109 10.7 9.4 114 ROACH 9700 13.6 11.1 123 16.1 11.7 138 SAND LAKE 10050 24.1 20.1 120 22.6 16.0 141 SOUTH PASS 9040 11.6 11.4 102 10.2 12.3 83 WINDY PEAK 7900 6.3 4.6 137 9.1 7.0 130 ----- ----- Basin wide percent of average 116 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 7.9 * 10.1 10.0 101 DIVIDE PEAK 8880 14.3 13.1 109 17.9 13.8 130 OLD BATTLE 10000 28.7 20.2 142 26.2 22.6 116 SANDSTONE RS 8150 -M 9.8 * -M 12.6 * WHISKEY PARK 8950 -M 18.7 * 27.0 19.5 138 ----- ----- Basin wide percent of average 129* 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.2 9.6 96 9.8 9.1 108 BLIND BULL SUM 8650 19.9 18.6 107 14.3 15.5 92 EAST RIM DIVIDE 7930 9.6 8.6 112 9.5 8.2 116 ELKHART PARK G.S. 9400 8.3 8.9 93 8.6 9.0 96 GROS VENTRE SUMMIT 8750 10.0 9.5 105 9.6 8.7 110 GUNSIGHT PASS 9820 11.4 -M * 11.5 -M * KENDALL R.S. 7740 8.3 9.9 84 10.3 9.8 105 LOOMIS PARK 8240 12.6 11.3 112 13.3 11.9 112 NEW FORK LAKE 8340 8.0 7.7 104 7.6 7.9 96 POCKET CREEK 9360 6.9 -M * 9.6 -M * SNIDER BASIN 8060 13.8 9.9 139 13.6 11.2 121 SPRING CREEK DIVIDE 9000 23.8 17.5 136 23.1 18.5 125 TRIPLE PEAK 8500 21.2 16.8 126 22.2 16.3 136 ----- ----- Basin wide percent of average 113 113 LOWER GREEN RIVER HAMS FORK 7840 10.8 8.5 127 11.3 8.4 135 HEWINTA 9519 7.4 6.8 109 11.2 9.4 119 HICKERSON PARK 9145 3.2 4.5 71 5.0 5.2 96 HOLE-IN-ROCK 9150 4.6 4.2 110 6.2 4.8 129 INDIAN CREEK 9425 21.7 17.7 123 19.8 16.9 117 KELLEY R.S. 8180 14.2 10.8 131 17.3 14.0 124 STEEL CREEK PARK 10200 10.7 9.5 113 14.0 10.2 137 ----- ----- Basin wide percent of average 117 123 UPPER BEAR RIVER BUG LAKE 7950 18.5 13.3 139 20.0 13.0 154 HAYDEN FORK 9212 14.0 9.9 141 20.9 13.7 153 KELLEY R.S. 8180 14.2 10.8 131 17.3 14.0 124 LILY LAKE 9156 12.5 8.3 151 15.3 11.6 132 MONTE CRISTO 8960 22.9 18.4 124 24.5 16.9 145 SALT RIVER SUMMIT 7760 11.1 9.4 118 14.9 12.7 117 TRIAL LAKE 9992 23.7 15.8 150 24.5 16.0 153 ----- ----- Basin wide percent of average 136 140 ----------------------------------------------------------------------------- -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.