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: JANUARY 24 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.2 11.6 88 12.9 13.8 93 COTTONWOOD CREEK 7670 16.3 13.1 124 19.8 17.6 112 GRAND TARGHEE 9260 23.6 -M * 21.0 -M * GRANITE CREEK 6770 10.1 11.2 90 14.6 12.8 114 GRASSY LAKE 7265 18.5 20.9 89 22.0 23.3 94 GROS VENTRE SUMMIT 8750 8.4 8.9 94 9.6 8.1 119 GUNSIGHT PASS 9820 8.6 -M * 9.6 -M * LEWIS LAKE DIVIDE 7850 16.1 21.0 77 20.6 23.2 89 PHILLIPS BENCH 8200 16.4 17.0 96 18.7 18.2 103 SALT RIVER SUMMIT 7760 7.7 8.2 94 9.3 11.8 79 SNAKE RIVER STATION 6920 10.0 11.4 88 14.1 14.5 97 SPRING CREEK DIVIDE 9000 16.3 16.1 101 17.1 17.2 99 THUMB DIVIDE 7980 10.4 10.7 97 12.4 11.9 104 TOGWOTEE PASS 9580 18.3 15.6 117 20.0 15.7 127 TWO OCEAN PLATEAU 9240 23.4 17.6 133 18.0 17.3 104 WILLOW CREEK 8380 19.5 18.8 104 24.1 20.4 118 ----- ----- Basin wide percent of average 100 103 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 14.5 15.2 95 13.3 13.0 102 BLACK BEAR 8170 19.5 24.1 81 21.3 24.1 88 CANYON 7870 7.7 8.3 93 8.7 10.1 86 FISHER CREEK 9100 22.8 22.2 103 21.7 22.9 95 MADISON PLATEAU 7750 11.4 15.3 75 13.5 16.2 83 NORTHEAST ENTRANCE 7350 6.3 7.1 89 8.7 8.3 105 PARKER PEAK 9400 16.0 13.9 115 11.5 10.4 111 SYLVAN LAKE 8420 11.7 14.1 83 14.0 13.8 101 THUMB DIVIDE 7980 10.4 10.7 97 12.4 11.9 104 TWO OCEAN PLATEAU 9240 23.4 17.6 133 18.0 17.3 104 WHISKEY CREEK 6800 8.2 10.4 79 11.2 12.9 87 WHITE MILL 8700 14.9 15.1 99 14.7 16.9 87 WOLVERINE 7650 7.3 8.0 91 7.5 8.6 87 ----- ----- Basin wide percent of average 96 95 WIND RIVER BURROUGHS CREEK 8750 11.3 9.5 119 12.0 10.6 113 COLD SPRINGS 9630 4.5 5.7 79 6.2 6.8 91 DEER PARK 9700 5.9 11.3 52 9.6 13.6 71 HOBBS PARK 10100 6.8 9.4 72 7.1 7.7 92 LITTLE WARM 9370 6.7 7.3 92 8.7 8.6 101 SOUTH PASS 9040 6.6 10.6 62 8.6 11.4 75 ST. LAWRENCE ALT 8620 1.7 4.6 37 4.7 5.4 87 TOGWOTEE PASS 9580 18.3 15.6 117 20.0 15.7 127 TOWNSEND CREEK 8700 4.0 5.3 75 6.2 6.9 90 ----- ----- Basin wide percent of average 83 96 BIGHORN BASIN BALD MTN. 9380 13.3 12.6 106 11.0 11.1 99 BEAR TRAP MEADOW 8200 5.5 3.3 167 6.3 5.2 121 BLACKWATER 9780 15.5 15.4 101 14.1 13.3 106 BONE SPRINGS DIV 9350 13.3 10.0 133 10.4 9.0 116 EVENING STAR 9200 19.1 18.4 104 20.1 16.5 122 GRAVE SPRINGS 8550 4.5 5.3 85 5.9 6.2 95 KIRWIN 9550 8.4 7.3 115 9.5 7.2 132 MARQUETTE 8760 2.6 5.7 46 5.3 6.0 88 MIDDLE POWDER 7760 6.0 6.8 88 6.2 7.9 78 OWL CREEK 8975 3.6 3.2 112 3.5 3.5 100 POWDER RIVER PASS 9480 8.8 6.8 129 9.9 7.8 127 SHELL CREEK 9580 11.9 9.3 128 11.7 8.7 134 SYLVAN LAKE 8420 11.7 14.1 83 14.0 13.8 101 SYLVAN ROAD 7120 9.4 8.3 113 12.3 12.6 98 TIMBER CREEK 7950 2.6 3.5 74 5.9 4.3 137 YOUNTS PEAK 8350 13.0 11.1 117 11.7 10.7 109 ----- ----- Basin wide percent of average 106 110 SHOSHONE RIVER BLACKWATER 9780 15.5 15.4 101 14.1 13.3 106 EVENING STAR 9200 19.1 18.4 104 20.1 16.5 122 KIRWIN 9550 8.4 7.3 115 9.5 7.2 132 MARQUETTE 8760 2.6 5.7 46 5.3 6.0 88 SYLVAN LAKE 8420 11.7 14.1 83 14.0 13.8 101 SYLVAN ROAD 7120 9.4 8.3 113 12.3 12.6 98 YOUNTS PEAK 8350 13.0 11.1 117 11.7 10.7 109 ----- ----- Basin wide percent of average 99 109 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 3.3 167 6.3 5.2 121 BIG GOOSE 7990 5.2 5.6 93 7.5 5.1 147 BONE SPRINGS DIV 9350 13.3 10.0 133 10.4 9.0 116 BURGESS JUNCTION 7880 8.1 7.0 116 8.8 7.5 117 CLOUD PEAK RESERVOIR 9860 11.4 7.5 152 11.1 7.8 142 DOME LAKE 8880 8.1 7.5 108 10.1 8.2 123 GRAVE SPRINGS 8550 4.5 5.3 85 5.9 6.2 95 HANSEN SAWMILL 8360 4.0 4.0 100 6.6 5.0 132 MIDDLE POWDER 7760 6.0 6.8 88 6.2 7.9 78 POWDER RIVER PASS 9480 8.8 6.8 129 9.9 7.8 127 SUCKER CREEK 8880 9.8 6.7 146 11.5 8.2 140 TIE CREEK 6870 3.0 3.8 79 9.1 6.4 142 ----- ----- Basin wide percent of average 118 123 BELLE FOURCHE BLIND PARK 6890 6.2 4.9 127 10.8 7.4 146 COLE CANYON 5910 3.9 4.2 93 8.9 4.5 198 NORTH RAPID CREEK 6130 6.4 4.5 142 9.1 6.0 152 ----- ----- Basin wide percent of average 121 161 UPPER N. PLATTE RIVER COLUMBINE 9160 14.7 14.7 100 14.2 15.5 92 DIVIDE PEAK 8880 11.5 12.1 95 13.5 12.8 105 ELK RIVER 8700 13.3 11.0 121 13.3 11.8 113 JOE WRIGHT 10120 14.1 12.8 110 17.4 15.2 114 NORTH FRENCH CREEK 10130 17.9 17.2 104 17.3 15.3 113 OLD BATTLE 10000 17.2 18.5 93 21.3 20.9 102 SAGE CREEK BASIN 7850 5.7 7.0 81 7.5 7.4 101 SOUTH BRUSH CREEK 8440 7.9 6.8 116 9.9 10.1 98 TOWER 10500 23.5 27.6 85 24.3 23.6 103 WEBBER SPRINGS 9250 13.0 14.8 88 15.9 16.9 94 WILLOW CREEK PASS 9540 7.6 7.0 109 7.3 7.8 94 ----- ----- Basin wide percent of average 98 103 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 12.0 14.2 85 11.4 13.4 85 CASPER MTN. 7900 4.9 8.5 58 7.5 8.5 88 DEADMAN HILL 10220 9.3 9.8 95 9.9 9.9 100 DEER PARK 9700 5.9 11.3 52 9.6 13.6 71 LAPRELE CREEK 8375 4.3 6.8 63 5.2 7.7 68 RENO HILL 8400 6.1 8.0 76 7.3 8.8 83 ROACH 9700 9.3 10.0 93 10.8 10.9 99 SAND LAKE 10050 15.2 18.7 81 14.0 15.0 93 SOUTH PASS 9040 6.6 10.6 62 8.6 11.4 75 WINDY PEAK 7900 4.0 4.2 95 4.5 6.6 68 ----- ----- Basin wide percent of average 76 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.5 7.0 107 10.0 9.3 108 DIVIDE PEAK 8880 11.5 12.1 95 13.5 12.8 105 OLD BATTLE 10000 17.2 18.5 93 21.3 20.9 102 SANDSTONE RS 8150 8.4 8.6 98 11.0 11.7 94 WHISKEY PARK 8950 16.8 16.7 101 18.7 18.1 103 ----- ----- Basin wide percent of average 98 102 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.2 8.8 82 7.3 8.4 87 BLIND BULL SUM 8650 15.6 17.2 91 13.0 14.4 90 EAST RIM DIVIDE 7930 5.5 7.8 71 8.3 7.6 109 ELKHART PARK G.S. 9400 8.2 8.2 100 9.5 8.4 113 GROS VENTRE SUMMIT 8750 8.4 8.9 94 9.6 8.1 119 GUNSIGHT PASS 9820 8.6 -M * 9.6 -M * KENDALL R.S. 7740 7.0 9.1 77 9.4 9.1 103 LOOMIS PARK 8240 10.5 10.4 101 12.9 11.0 117 NEW FORK LAKE 8340 7.7 7.1 108 7.4 7.4 100 SNIDER BASIN 8060 9.0 9.0 100 9.8 10.4 94 SPRING CREEK DIVIDE 9000 16.3 16.1 101 17.1 17.2 99 TRIPLE PEAK 8500 15.7 15.5 101 17.5 15.1 116 ----- ----- Basin wide percent of average 94 104 LOWER GREEN RIVER HAMS FORK 7840 5.7 7.6 75 6.6 7.8 85 HEWINTA 9519 4.2 6.0 70 7.1 8.7 82 HICKERSON PARK 9145 1.6 4.0 40 4.2 4.9 86 HOLE-IN-ROCK 9150 2.1 3.7 57 4.1 4.5 91 INDIAN CREEK 9425 12.9 16.3 79 12.6 15.7 80 KELLEY R.S. 8180 7.9 9.8 81 9.8 13.0 75 STEEL CREEK PARK 10200 5.2 8.6 60 8.6 9.5 91 ----- ----- Basin wide percent of average 71 83 UPPER BEAR RIVER BUG LAKE 7950 6.9 12.0 58 9.9 12.0 82 HAYDEN FORK 9212 9.0 8.9 101 11.7 12.7 92 KELLEY R.S. 8180 7.9 9.8 81 9.8 13.0 75 LILY LAKE 9156 7.2 7.5 96 9.0 10.8 83 MONTE CRISTO 8960 13.3 16.3 82 14.4 15.6 92 SALT RIVER SUMMIT 7760 7.7 8.2 94 9.3 11.8 79 TRIAL LAKE 9992 12.0 14.3 84 12.0 14.7 82 ----- ----- Basin wide percent of average 83 84 ----------------------------------------------------------------------------- -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.