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 SATURDAY: FEBRUARY 5 , 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 13.2 107 17.0 15.4 110 COTTONWOOD CREEK 7670 18.6 14.7 127 24.4 19.2 127 GRAND TARGHEE 9260 34.1 -M * 24.6 -M * GRANITE CREEK 6770 13.9 12.9 108 16.2 14.3 113 GRASSY LAKE 7265 24.7 23.9 103 27.4 25.9 106 GROS VENTRE SUMMIT 8750 10.4 9.7 107 10.3 8.9 116 GUNSIGHT PASS 9820 11.8 -M * 12.0 -M * LEWIS LAKE DIVIDE 7850 24.1 24.1 100 24.6 25.8 95 PHILLIPS BENCH 8200 21.1 19.3 109 22.3 20.2 110 SALT RIVER SUMMIT 7760 11.4 9.7 118 15.7 13.0 121 SNAKE RIVER STATION 6920 -M 13.2 * -M 16.1 * SPRING CREEK DIVIDE 9000 24.3 18.0 135 23.6 18.9 125 THUMB DIVIDE 7980 13.7 12.2 112 13.9 13.1 106 TOGWOTEE PASS 9580 20.3 17.5 116 21.6 17.3 125 TWO OCEAN PLATEAU 9240 23.3 19.6 119 19.4 19.1 102 WILLOW CREEK 8380 23.2 21.0 110 28.5 22.5 127 ----- ----- Basin wide percent of average 113 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.6 16.5 107 17.1 14.4 119 BLACK BEAR 8170 29.8 26.2 114 29.4 27.1 108 CANYON 7870 11.0 9.1 121 12.6 11.1 114 FISHER CREEK 9100 26.9 24.3 111 26.1 25.4 103 MADISON PLATEAU 7750 18.6 16.6 112 20.3 18.1 112 NORTHEAST ENTRANCE 7350 9.0 7.9 114 11.0 9.2 120 PARKER PEAK 9400 19.9 15.1 132 17.8 11.4 156 SYLVAN LAKE 8420 16.3 15.5 105 19.6 15.2 129 THUMB DIVIDE 7980 13.7 12.2 112 13.9 13.1 106 TWO OCEAN PLATEAU 9240 23.3 19.6 119 19.4 19.1 102 WHISKEY CREEK 6800 13.1 11.4 115 15.7 14.3 110 WHITE MILL 8700 18.7 16.5 113 19.4 18.9 103 WOLVERINE 7650 11.5 8.8 131 10.4 9.5 109 ----- ----- Basin wide percent of average 115 113 WIND RIVER BURROUGHS CREEK 8750 10.2 10.3 99 10.7 11.6 92 CASTLE CREEK 8400 4.4 -M * 5.1 -M * COLD SPRINGS 9630 5.9 6.1 97 6.2 7.3 85 DEER PARK 9700 14.2 11.7 121 15.3 15.1 101 HOBBS PARK 10100 9.5 9.9 96 8.7 8.4 104 LITTLE WARM 9370 8.2 7.9 104 8.6 9.3 92 SOUTH PASS 9040 11.7 11.5 102 10.2 12.7 80 ST. LAWRENCE ALT 8620 3.7 4.9 76 4.5 5.9 76 TOGWOTEE PASS 9580 20.3 17.5 116 21.6 17.3 125 TOWNSEND CREEK 8700 -M 5.7 * -M 7.5 * ----- ----- Basin wide percent of average 105 98 BIGHORN BASIN BALD MTN. 9380 16.5 13.7 120 13.6 12.1 112 BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.6 114 BLACKWATER 9780 18.1 16.8 108 17.6 14.6 121 BONE SPRINGS DIV 9350 13.1 10.9 120 11.2 9.9 113 EVENING STAR 9200 22.6 20.2 112 25.1 18.2 138 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 1.9 6.0 32 4.7 6.4 73 MIDDLE POWDER 7760 6.6 7.5 88 8.5 8.5 100 OWL CREEK 8975 3.2 3.5 91 3.6 3.8 95 POWDER RIVER PASS 9480 10.1 7.4 136 12.0 8.5 141 SHELL CREEK 9580 11.9 10.2 117 10.6 9.5 112 SYLVAN LAKE 8420 16.3 15.5 105 19.6 15.2 129 SYLVAN ROAD 7120 10.8 9.0 120 14.6 13.6 107 TIMBER CREEK 7950 2.6 3.7 70 3.2 4.6 70 YOUNTS PEAK 8350 12.0 12.2 98 10.6 11.7 91 ----- ----- Basin wide percent of average 107 112 SHOSHONE RIVER BLACKWATER 9780 18.1 16.8 108 17.6 14.6 121 EVENING STAR 9200 22.6 20.2 112 25.1 18.2 138 KIRWIN 9550 7.9 7.8 101 8.8 7.8 113 MARQUETTE 8760 1.9 6.0 32 4.7 6.4 73 SYLVAN LAKE 8420 16.3 15.5 105 19.6 15.2 129 SYLVAN ROAD 7120 10.8 9.0 120 14.6 13.6 107 YOUNTS PEAK 8350 12.0 12.2 98 10.6 11.7 91 ----- ----- Basin wide percent of average 102 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.6 114 BIG GOOSE 7990 5.2 6.2 84 6.7 5.9 114 BONE SPRINGS DIV 9350 13.1 10.9 120 11.2 9.9 113 BURGESS JUNCTION 7880 7.0 7.6 92 8.0 8.1 99 CLOUD PEAK RESERVOIR 9860 10.5 8.3 127 10.4 8.4 124 DOME LAKE 8880 7.7 8.1 95 9.1 8.9 102 GRAVE SPRINGS 8550 5.1 6.0 85 5.4 6.5 83 HANSEN SAWMILL 8360 4.6 4.3 107 5.0 5.4 93 LITTLE GOOSE 8870 6.0 -M * 9.9 -M * MIDDLE POWDER 7760 6.6 7.5 88 8.5 8.5 100 POWDER RIVER PASS 9480 10.1 7.4 136 12.0 8.5 141 SOLDIER PARK 8720 4.6 -M * 5.9 -M * SUCKER CREEK 8880 8.9 7.5 119 9.7 9.0 108 TIE CREEK 6870 4.5 4.2 107 6.7 6.9 97 ----- ----- Basin wide percent of average 109 108 BELLE FOURCHE BLIND PARK 6890 6.7 5.6 120 12.3 8.0 154 COLE CANYON 5910 5.6 4.7 119 8.5 4.8 177 NORTH RAPID CREEK 6130 6.1 5.3 115 10.4 6.5 160 ----- ----- Basin wide percent of average 118 162 UPPER N. PLATTE RIVER CINNABAR PARK 9574 18.3 13.6 135 21.2 14.7 144 COLUMBINE 9160 22.3 17.3 129 24.0 17.2 140 DIVIDE PEAK 8880 14.5 13.3 109 18.4 14.1 130 ELK RIVER 8700 16.1 12.8 126 18.3 13.1 140 JOE WRIGHT 10120 18.9 14.4 131 23.9 16.7 143 NORTH FRENCH CREEK 10130 29.9 19.0 157 27.8 16.9 164 OLD BATTLE 10000 29.3 20.9 140 26.9 23.2 116 SAGE CREEK BASIN 7850 13.4 7.7 174 13.1 8.2 160 SOUTH BRUSH CREEK 8440 11.8 7.7 153 15.1 11.2 135 TOWER 10500 37.7 31.2 121 35.4 26.3 135 WEBBER SPRINGS 9250 20.3 16.7 122 25.0 18.6 134 WILLOW CREEK PASS 9540 12.5 7.8 160 12.2 8.6 142 ----- ----- Basin wide percent of average 134 138 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.9 15.8 132 21.5 14.7 146 CASPER MTN. 7900 7.7 9.3 83 10.3 9.2 112 DEADMAN HILL 10220 -M 10.9 * -M 10.9 * DEER PARK 9700 14.2 11.7 121 15.3 15.1 101 LAPRELE CREEK 8375 8.4 7.5 112 9.7 8.4 115 RENO HILL 8400 9.5 8.7 109 11.4 9.6 119 ROACH 9700 13.8 11.4 121 17.0 12.0 142 SAND LAKE 10050 24.8 20.6 120 23.4 16.3 144 SOUTH PASS 9040 11.7 11.5 102 10.2 12.7 80 WINDY PEAK 7900 6.7 4.7 143 9.2 7.2 128 ----- ----- Basin wide percent of average 116 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.4 8.1 30 10.6 10.2 104 DIVIDE PEAK 8880 14.5 13.3 109 18.4 14.1 130 OLD BATTLE 10000 29.3 20.9 140 26.9 23.2 116 SANDSTONE RS 8150 -M 10.1 * -M 12.9 * WHISKEY PARK 8950 -M 19.3 * 27.2 20.0 136 ----- ----- Basin wide percent of average 109 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.1 9.9 102 10.5 9.3 113 BLIND BULL SUM 8650 20.7 19.0 109 15.0 15.9 94 EAST RIM DIVIDE 7930 10.0 8.8 114 9.0 8.4 107 ELKHART PARK G.S. 9400 8.9 9.1 98 9.0 9.1 99 GROS VENTRE SUMMIT 8750 10.4 9.7 107 10.3 8.9 116 GUNSIGHT PASS 9820 11.8 -M * 12.0 -M * KENDALL R.S. 7740 8.8 10.2 86 10.5 10.1 104 LOOMIS PARK 8240 12.9 11.7 110 13.9 12.2 114 NEW FORK LAKE 8340 8.4 7.9 106 8.1 8.1 100 POCKET CREEK 9360 7.6 -M * 9.9 -M * SNIDER BASIN 8060 14.1 10.1 140 14.1 11.4 124 SPRING CREEK DIVIDE 9000 24.3 18.0 135 23.6 18.9 125 TRIPLE PEAK 8500 21.7 17.2 126 23.0 16.7 138 ----- ----- Basin wide percent of average 114 114 LOWER GREEN RIVER HAMS FORK 7840 11.3 8.7 130 11.8 8.7 136 HEWINTA 9519 7.7 7.0 110 11.8 9.6 123 HICKERSON PARK 9145 4.6 4.6 100 6.4 5.3 121 HOLE-IN-ROCK 9150 5.2 4.3 121 6.6 4.9 135 INDIAN CREEK 9425 22.2 18.2 122 20.5 17.4 118 KELLEY R.S. 8180 14.7 11.1 132 17.4 14.3 122 STEEL CREEK PARK 10200 11.5 9.8 117 14.4 10.5 137 ----- ----- Basin wide percent of average 121 126 UPPER BEAR RIVER BUG LAKE 7950 18.8 13.8 136 20.4 13.4 152 HAYDEN FORK 9212 14.5 10.3 141 21.0 14.1 149 KELLEY R.S. 8180 14.7 11.1 132 17.4 14.3 122 LILY LAKE 9156 12.9 8.5 152 15.6 11.8 132 MONTE CRISTO 8960 23.2 19.1 121 25.0 17.3 145 SALT RIVER SUMMIT 7760 11.4 9.7 118 15.7 13.0 121 TRIAL LAKE 9992 24.3 16.3 149 24.8 16.4 151 ----- ----- 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.