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 27 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.6 12.0 88 13.5 14.2 95 COTTONWOOD CREEK 7670 17.3 13.6 127 20.7 18.0 115 GRAND TARGHEE 9260 25.9 -M * 22.8 -M * GRANITE CREEK 6770 11.1 11.6 96 15.6 13.1 119 GRASSY LAKE 7265 19.6 21.7 90 22.7 24.0 95 GROS VENTRE SUMMIT 8750 8.6 9.1 95 9.9 8.3 119 GUNSIGHT PASS 9820 9.4 -M * 10.4 -M * LEWIS LAKE DIVIDE 7850 16.7 21.8 77 20.7 23.8 87 PHILLIPS BENCH 8200 17.3 17.6 98 19.3 18.7 103 SALT RIVER SUMMIT 7760 8.2 8.6 95 9.7 12.1 80 SNAKE RIVER STATION 6920 10.6 11.8 90 14.8 14.9 99 SPRING CREEK DIVIDE 9000 17.0 16.6 102 17.5 17.6 99 THUMB DIVIDE 7980 10.8 11.1 97 12.6 12.2 103 TOGWOTEE PASS 9580 18.8 16.1 117 20.6 16.2 127 TWO OCEAN PLATEAU 9240 23.8 18.1 131 18.4 17.7 104 WILLOW CREEK 8380 21.5 19.3 111 25.7 20.9 123 ----- ----- Basin wide percent of average 101 104 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 15.1 15.7 96 13.8 13.4 103 BLACK BEAR 8170 20.2 24.7 82 21.7 24.8 88 CANYON 7870 8.4 8.6 98 9.1 10.4 87 FISHER CREEK 9100 23.5 22.9 103 21.5 23.6 91 MADISON PLATEAU 7750 11.7 15.6 75 13.8 16.7 83 NORTHEAST ENTRANCE 7350 6.7 7.4 91 9.1 8.5 107 PARKER PEAK 9400 16.6 14.3 116 12.4 10.6 117 SYLVAN LAKE 8420 12.3 14.5 85 14.7 14.2 104 THUMB DIVIDE 7980 10.8 11.1 97 12.6 12.2 103 TWO OCEAN PLATEAU 9240 23.8 18.1 131 18.4 17.7 104 WHISKEY CREEK 6800 8.3 10.7 78 11.5 13.2 87 WHITE MILL 8700 15.4 15.5 99 14.9 17.4 86 WOLVERINE 7650 8.2 8.4 98 7.9 8.9 89 ----- ----- Basin wide percent of average 97 95 WIND RIVER BURROUGHS CREEK 8750 11.5 9.8 117 12.1 10.9 111 COLD SPRINGS 9630 4.7 5.8 81 6.5 6.9 94 DEER PARK 9700 6.3 11.5 55 10.1 13.9 73 HOBBS PARK 10100 6.7 9.5 71 6.9 7.9 87 LITTLE WARM 9370 7.2 7.5 96 9.2 8.8 105 SOUTH PASS 9040 7.0 10.8 65 9.2 11.7 79 ST. LAWRENCE ALT 8620 1.6 4.6 35 4.8 5.5 87 TOGWOTEE PASS 9580 18.8 16.1 117 20.6 16.2 127 TOWNSEND CREEK 8700 3.7 5.4 69 6.0 7.1 85 ----- ----- Basin wide percent of average 83 96 BIGHORN BASIN BALD MTN. 9380 13.5 13.0 104 11.3 11.3 100 BEAR TRAP MEADOW 8200 5.7 3.4 168 6.5 5.3 123 BLACKWATER 9780 15.9 16.0 99 14.4 13.6 106 BONE SPRINGS DIV 9350 13.5 10.2 132 10.3 9.2 112 EVENING STAR 9200 19.6 19.0 103 20.3 17.0 119 GRAVE SPRINGS 8550 4.8 5.4 89 6.5 6.3 103 KIRWIN 9550 8.5 7.5 113 9.5 7.4 128 MARQUETTE 8760 2.7 5.8 47 5.4 6.1 89 MIDDLE POWDER 7760 6.1 6.9 88 6.6 8.1 81 OWL CREEK 8975 3.6 3.3 109 3.4 3.6 94 POWDER RIVER PASS 9480 9.1 7.0 130 10.0 8.0 125 SHELL CREEK 9580 12.1 9.6 126 12.0 8.9 135 SYLVAN LAKE 8420 12.3 14.5 85 14.7 14.2 104 SYLVAN ROAD 7120 10.1 8.5 119 13.0 12.8 102 TIMBER CREEK 7950 -M 3.5 * 6.3 4.4 143 YOUNTS PEAK 8350 13.3 11.5 116 11.9 11.0 108 ----- ----- Basin wide percent of average 106 110 SHOSHONE RIVER BLACKWATER 9780 15.9 16.0 99 14.4 13.6 106 EVENING STAR 9200 19.6 19.0 103 20.3 17.0 119 KIRWIN 9550 8.5 7.5 113 9.5 7.4 128 MARQUETTE 8760 2.7 5.8 47 5.4 6.1 89 SYLVAN LAKE 8420 12.3 14.5 85 14.7 14.2 104 SYLVAN ROAD 7120 10.1 8.5 119 13.0 12.8 102 YOUNTS PEAK 8350 13.3 11.5 116 11.9 11.0 108 ----- ----- Basin wide percent of average 100 109 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.7 3.4 168 6.5 5.3 123 BIG GOOSE 7990 5.3 5.7 93 7.8 5.3 147 BONE SPRINGS DIV 9350 13.5 10.2 132 10.3 9.2 112 BURGESS JUNCTION 7880 -M 7.1 * 8.9 7.6 117 CLOUD PEAK RESERVOIR 9860 11.3 7.7 147 10.5 7.9 133 DOME LAKE 8880 8.0 7.7 104 10.3 8.4 123 GRAVE SPRINGS 8550 4.8 5.4 89 6.5 6.3 103 HANSEN SAWMILL 8360 4.2 4.0 105 6.8 5.1 133 MIDDLE POWDER 7760 6.1 6.9 88 6.6 8.1 81 POWDER RIVER PASS 9480 9.1 7.0 130 10.0 8.0 125 SUCKER CREEK 8880 9.8 6.9 142 11.5 8.5 135 TIE CREEK 6870 3.1 3.8 82 9.1 6.6 138 ----- ----- Basin wide percent of average 118 121 BELLE FOURCHE BLIND PARK 6890 6.5 5.1 127 11.3 7.6 149 COLE CANYON 5910 4.0 4.3 93 9.2 4.6 200 NORTH RAPID CREEK 6130 6.4 4.7 136 9.5 6.1 156 ----- ----- Basin wide percent of average 120 164 UPPER N. PLATTE RIVER COLUMBINE 9160 16.9 15.4 110 16.1 15.9 101 DIVIDE PEAK 8880 13.5 12.5 108 15.2 13.2 115 ELK RIVER 8700 15.3 11.4 134 14.4 12.2 118 JOE WRIGHT 10120 15.7 13.2 119 19.1 15.6 122 NORTH FRENCH CREEK 10130 20.2 17.7 114 19.7 15.7 125 OLD BATTLE 10000 19.6 19.1 103 23.7 21.5 110 SAGE CREEK BASIN 7850 7.1 7.3 97 8.6 7.6 113 SOUTH BRUSH CREEK 8440 9.2 7.0 131 10.6 10.4 102 TOWER 10500 26.5 28.6 93 26.9 24.3 111 WEBBER SPRINGS 9250 15.0 15.3 98 18.0 17.4 103 WILLOW CREEK PASS 9540 8.2 7.2 114 8.1 8.0 101 ----- ----- Basin wide percent of average 108 111 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.5 14.7 92 12.8 13.7 93 CASPER MTN. 7900 5.4 8.7 62 8.0 8.6 93 DEADMAN HILL 10220 10.6 10.1 105 11.2 10.2 110 DEER PARK 9700 6.3 11.5 55 10.1 13.9 73 LAPRELE CREEK 8375 4.9 7.0 70 5.9 7.9 75 RENO HILL 8400 6.9 8.2 84 7.8 9.0 87 ROACH 9700 10.8 10.4 104 12.3 11.2 110 SAND LAKE 10050 16.9 19.2 88 15.6 15.3 102 SOUTH PASS 9040 7.0 10.8 65 9.2 11.7 79 WINDY PEAK 7900 4.8 4.3 112 5.6 6.8 82 ----- ----- Basin wide percent of average 83 91 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.9 7.3 122 11.2 9.5 118 DIVIDE PEAK 8880 13.5 12.5 108 15.2 13.2 115 OLD BATTLE 10000 19.6 19.1 103 23.7 21.5 110 SANDSTONE RS 8150 9.8 9.1 108 12.5 12.0 104 WHISKEY PARK 8950 19.0 17.4 109 20.6 18.6 111 ----- ----- Basin wide percent of average 108 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.6 9.1 84 7.6 8.6 88 BLIND BULL SUM 8650 16.4 17.6 93 13.9 14.8 94 EAST RIM DIVIDE 7930 6.0 8.1 74 8.9 7.8 114 ELKHART PARK G.S. 9400 8.8 8.4 105 10.0 8.6 116 GROS VENTRE SUMMIT 8750 8.6 9.1 95 9.9 8.3 119 GUNSIGHT PASS 9820 9.4 -M * 10.4 -M * KENDALL R.S. 7740 7.7 9.4 82 10.1 9.3 109 LOOMIS PARK 8240 11.8 10.7 110 13.7 11.3 121 NEW FORK LAKE 8340 8.3 7.3 114 7.9 7.6 104 SNIDER BASIN 8060 9.2 9.3 99 9.9 10.7 93 SPRING CREEK DIVIDE 9000 17.0 16.6 102 17.5 17.6 99 TRIPLE PEAK 8500 16.3 15.9 103 18.0 15.5 116 ----- ----- Basin wide percent of average 97 106 LOWER GREEN RIVER HAMS FORK 7840 6.2 7.9 78 7.1 8.0 89 HEWINTA 9519 4.7 6.3 75 7.6 8.9 85 HICKERSON PARK 9145 1.5 4.2 36 4.1 5.0 82 HOLE-IN-ROCK 9150 2.0 3.9 51 4.2 4.6 91 INDIAN CREEK 9425 13.7 16.8 82 13.3 16.2 82 KELLEY R.S. 8180 8.9 10.1 88 10.4 13.4 78 STEEL CREEK PARK 10200 6.0 8.9 67 9.4 9.7 97 ----- ----- Basin wide percent of average 74 85 UPPER BEAR RIVER BUG LAKE 7950 8.1 12.4 65 10.7 12.4 86 HAYDEN FORK 9212 10.3 9.2 112 12.9 13.1 98 KELLEY R.S. 8180 8.9 10.1 88 10.4 13.4 78 LILY LAKE 9156 8.3 7.7 108 10.2 11.0 93 MONTE CRISTO 8960 15.4 17.0 91 15.9 16.0 99 SALT RIVER SUMMIT 7760 8.2 8.6 95 9.7 12.1 80 TRIAL LAKE 9992 14.0 14.8 95 13.7 15.2 90 ----- ----- Basin wide percent of average 92 90 ----------------------------------------------------------------------------- -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.