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 THURSDAY: JANUARY 29 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.9 12.3 89 13.7 14.5 94 COTTONWOOD CREEK 7670 17.7 13.8 128 21.2 18.3 116 GRAND TARGHEE 9260 26.5 -M * 23.3 -M * GRANITE CREEK 6770 11.4 11.9 96 15.9 13.4 119 GRASSY LAKE 7265 20.0 22.2 90 23.3 24.4 95 GROS VENTRE SUMMIT 8750 8.7 9.3 94 10.1 8.5 119 GUNSIGHT PASS 9820 9.6 -M * 10.6 -M * LEWIS LAKE DIVIDE 7850 17.0 22.3 76 21.3 24.2 88 PHILLIPS BENCH 8200 17.7 18.0 98 19.8 19.0 104 SALT RIVER SUMMIT 7760 8.7 8.9 98 10.3 12.3 84 SNAKE RIVER STATION 6920 10.9 12.2 89 15.0 15.2 99 SPRING CREEK DIVIDE 9000 17.5 16.9 104 17.9 17.9 100 THUMB DIVIDE 7980 10.9 11.4 96 12.7 12.4 102 TOGWOTEE PASS 9580 19.2 16.4 117 21.1 16.4 129 TWO OCEAN PLATEAU 9240 24.2 18.5 131 18.5 18.0 103 WILLOW CREEK 8380 22.0 19.7 112 26.3 21.3 123 ----- ----- Basin wide percent of average 101 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 15.3 15.9 96 14.0 13.6 103 BLACK BEAR 8170 20.9 25.0 84 22.2 25.3 88 CANYON 7870 8.5 8.7 98 9.4 10.5 90 FISHER CREEK 9100 24.1 23.2 104 22.8 24.0 95 MADISON PLATEAU 7750 12.1 15.8 77 14.1 17.0 83 NORTHEAST ENTRANCE 7350 7.2 7.5 96 9.5 8.7 109 PARKER PEAK 9400 17.0 14.5 117 12.4 10.8 115 SYLVAN LAKE 8420 12.6 14.7 86 14.9 14.4 103 THUMB DIVIDE 7980 10.9 11.4 96 12.7 12.4 102 TWO OCEAN PLATEAU 9240 24.2 18.5 131 18.5 18.0 103 WHISKEY CREEK 6800 8.7 10.8 81 11.8 13.5 87 WHITE MILL 8700 15.9 15.7 101 15.7 17.8 88 WOLVERINE 7650 8.2 8.5 96 8.3 9.0 92 ----- ----- Basin wide percent of average 98 96 WIND RIVER BURROUGHS CREEK 8750 11.9 9.9 120 12.3 11.0 112 COLD SPRINGS 9630 4.8 5.9 81 6.7 7.0 96 DEER PARK 9700 6.4 11.6 55 10.1 14.2 71 HOBBS PARK 10100 6.8 9.7 70 7.1 8.0 89 LITTLE WARM 9370 7.5 7.6 99 9.5 8.9 107 SOUTH PASS 9040 7.0 11.1 63 9.1 11.9 76 ST. LAWRENCE ALT 8620 1.8 4.7 38 4.8 5.6 86 TOGWOTEE PASS 9580 19.2 16.4 117 21.1 16.4 129 TOWNSEND CREEK 8700 4.0 5.5 73 6.2 7.2 86 ----- ----- Basin wide percent of average 84 96 BIGHORN BASIN BALD MTN. 9380 13.9 13.1 106 11.3 11.5 98 BEAR TRAP MEADOW 8200 5.9 3.4 174 6.6 5.4 122 BLACKWATER 9780 16.1 16.2 99 14.7 13.9 106 BONE SPRINGS DIV 9350 14.0 10.4 135 10.7 9.4 114 EVENING STAR 9200 20.0 19.3 104 20.8 17.2 121 GRAVE SPRINGS 8550 5.1 5.5 93 6.5 6.3 103 KIRWIN 9550 8.7 7.5 116 9.7 7.5 129 MARQUETTE 8760 2.8 5.8 48 5.5 6.1 90 MIDDLE POWDER 7760 6.5 7.0 93 6.6 8.1 81 OWL CREEK 8975 3.6 3.3 109 3.5 3.6 97 POWDER RIVER PASS 9480 9.3 7.1 131 10.4 8.1 128 SHELL CREEK 9580 12.5 9.7 129 12.1 9.1 133 SYLVAN LAKE 8420 12.6 14.7 86 14.9 14.4 103 SYLVAN ROAD 7120 10.2 8.6 119 13.3 13.0 102 TIMBER CREEK 7950 2.8 3.6 78 6.0 4.4 136 YOUNTS PEAK 8350 13.6 11.7 116 12.2 11.1 110 ----- ----- Basin wide percent of average 107 111 SHOSHONE RIVER BLACKWATER 9780 16.1 16.2 99 14.7 13.9 106 EVENING STAR 9200 20.0 19.3 104 20.8 17.2 121 KIRWIN 9550 8.7 7.5 116 9.7 7.5 129 MARQUETTE 8760 2.8 5.8 48 5.5 6.1 90 SYLVAN LAKE 8420 12.6 14.7 86 14.9 14.4 103 SYLVAN ROAD 7120 10.2 8.6 119 13.3 13.0 102 YOUNTS PEAK 8350 13.6 11.7 116 12.2 11.1 110 ----- ----- Basin wide percent of average 100 109 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.9 3.4 174 6.6 5.4 122 BIG GOOSE 7990 5.8 5.8 100 8.1 5.5 147 BONE SPRINGS DIV 9350 14.0 10.4 135 10.7 9.4 114 BURGESS JUNCTION 7880 8.6 7.2 119 9.3 7.7 121 CLOUD PEAK RESERVOIR 9860 12.0 7.8 154 11.7 8.1 144 DOME LAKE 8880 8.5 7.8 109 10.6 8.5 125 GRAVE SPRINGS 8550 5.1 5.5 93 6.5 6.3 103 HANSEN SAWMILL 8360 4.4 4.1 107 7.0 5.2 135 MIDDLE POWDER 7760 6.5 7.0 93 6.6 8.1 81 POWDER RIVER PASS 9480 9.3 7.1 131 10.4 8.1 128 SUCKER CREEK 8880 10.3 7.0 147 12.1 8.6 141 TIE CREEK 6870 3.6 3.9 92 9.9 6.7 148 ----- ----- Basin wide percent of average 122 125 BELLE FOURCHE BLIND PARK 6890 7.2 5.1 141 11.5 7.7 149 COLE CANYON 5910 4.6 4.4 105 9.1 4.6 198 NORTH RAPID CREEK 6130 6.7 4.8 140 9.8 6.2 158 ----- ----- Basin wide percent of average 129 164 UPPER N. PLATTE RIVER COLUMBINE 9160 17.8 15.8 113 16.9 16.2 104 DIVIDE PEAK 8880 13.9 12.7 109 15.9 13.4 119 ELK RIVER 8700 15.9 11.8 135 14.7 12.4 119 JOE WRIGHT 10120 16.0 13.5 119 19.3 15.8 122 NORTH FRENCH CREEK 10130 21.0 18.0 117 20.1 16.0 126 OLD BATTLE 10000 20.4 19.5 105 24.1 21.8 111 SAGE CREEK BASIN 7850 7.4 7.4 100 8.7 7.8 112 SOUTH BRUSH CREEK 8440 9.5 7.2 132 10.9 10.6 103 TOWER 10500 27.7 29.2 95 27.4 24.8 110 WEBBER SPRINGS 9250 15.7 15.6 101 18.6 17.6 106 WILLOW CREEK PASS 9540 8.2 7.3 112 8.2 8.1 101 ----- ----- Basin wide percent of average 110 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.0 14.9 94 13.3 13.9 96 CASPER MTN. 7900 5.7 8.8 65 8.3 8.7 95 DEADMAN HILL 10220 10.9 10.3 106 11.5 10.3 112 DEER PARK 9700 6.4 11.6 55 10.1 14.2 71 LAPRELE CREEK 8375 5.1 7.1 72 6.1 8.0 76 RENO HILL 8400 7.0 8.3 84 8.1 9.2 88 ROACH 9700 11.1 10.6 105 12.6 11.4 111 SAND LAKE 10050 17.6 19.5 90 16.0 15.6 103 SOUTH PASS 9040 7.0 11.1 63 9.1 11.9 76 WINDY PEAK 7900 5.0 4.4 114 5.7 6.8 84 ----- ----- Basin wide percent of average 84 92 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.5 7.5 127 11.7 9.7 121 DIVIDE PEAK 8880 13.9 12.7 109 15.9 13.4 119 OLD BATTLE 10000 20.4 19.5 105 24.1 21.8 111 SANDSTONE RS 8150 10.3 9.3 111 13.1 12.2 107 WHISKEY PARK 8950 20.2 17.9 113 21.1 18.9 112 ----- ----- Basin wide percent of average 111 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.9 9.3 85 8.0 8.8 91 BLIND BULL SUM 8650 16.8 18.0 93 14.2 15.0 95 EAST RIM DIVIDE 7930 6.5 8.2 79 9.1 7.9 115 ELKHART PARK G.S. 9400 9.0 8.5 106 10.2 8.7 117 GROS VENTRE SUMMIT 8750 8.7 9.3 94 10.1 8.5 119 GUNSIGHT PASS 9820 9.6 -M * 10.6 -M * KENDALL R.S. 7740 7.9 9.5 83 10.2 9.5 107 LOOMIS PARK 8240 11.8 10.9 108 14.1 11.5 123 NEW FORK LAKE 8340 8.6 7.4 116 8.2 7.7 106 SNIDER BASIN 8060 9.6 9.5 101 10.3 10.8 95 SPRING CREEK DIVIDE 9000 17.5 16.9 104 17.9 17.9 100 TRIPLE PEAK 8500 16.8 16.2 104 18.6 15.8 118 ----- ----- Basin wide percent of average 98 107 LOWER GREEN RIVER HAMS FORK 7840 6.7 8.1 83 7.4 8.2 90 HEWINTA 9519 5.1 6.4 80 8.0 9.1 88 HICKERSON PARK 9145 1.8 4.3 42 4.3 5.1 84 HOLE-IN-ROCK 9150 2.2 4.0 55 4.4 4.7 94 INDIAN CREEK 9425 14.3 17.1 84 13.7 16.4 84 KELLEY R.S. 8180 9.3 10.3 90 11.0 13.6 81 STEEL CREEK PARK 10200 6.4 9.1 70 9.7 9.9 98 ----- ----- Basin wide percent of average 77 87 UPPER BEAR RIVER BUG LAKE 7950 9.1 12.7 72 11.1 12.6 88 HAYDEN FORK 9212 10.7 9.5 113 13.3 13.3 100 KELLEY R.S. 8180 9.3 10.3 90 11.0 13.6 81 LILY LAKE 9156 8.6 7.9 109 10.4 11.2 93 MONTE CRISTO 8960 16.0 17.5 91 16.1 16.3 99 SALT RIVER SUMMIT 7760 8.7 8.9 98 10.3 12.3 84 TRIAL LAKE 9992 14.4 15.1 95 13.9 15.4 90 ----- ----- Basin wide percent of average 94 91 ----------------------------------------------------------------------------- -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 1961-90. 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.