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 17 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.8 10.6 92 12.6 12.8 98 COTTONWOOD CREEK 7670 15.5 12.1 128 19.0 16.5 115 GRAND TARGHEE 9260 22.4 -M * 20.1 -M * GRANITE CREEK 6770 9.7 10.1 96 14.2 11.8 120 GRASSY LAKE 7265 17.9 19.0 94 21.1 21.7 97 GROS VENTRE SUMMIT 8750 8.3 8.3 100 9.4 7.6 124 GUNSIGHT PASS 9820 8.4 -M * 9.4 -M * LEWIS LAKE DIVIDE 7850 15.8 19.0 83 20.1 21.6 93 PHILLIPS BENCH 8200 16.0 15.7 102 18.3 16.8 109 SALT RIVER SUMMIT 7760 7.2 7.3 99 9.0 11.0 82 SNAKE RIVER STATION 6920 9.6 10.2 94 13.8 13.5 102 SPRING CREEK DIVIDE 9000 15.7 15.0 105 16.5 16.1 102 THUMB DIVIDE 7980 10.3 9.7 106 12.1 11.1 109 TOGWOTEE PASS 9580 17.9 14.4 124 19.7 14.7 134 TWO OCEAN PLATEAU 9240 22.8 16.3 140 17.7 16.2 109 WILLOW CREEK 8380 18.7 17.4 107 23.0 19.0 121 ----- ----- Basin wide percent of average 105 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 14.5 14.3 101 13.3 12.1 110 BLACK BEAR 8170 19.0 22.0 86 20.9 22.2 94 CANYON 7870 7.6 7.8 97 8.5 9.4 90 FISHER CREEK 9100 22.7 20.8 109 21.6 21.3 101 MADISON PLATEAU 7750 11.1 14.2 78 13.1 15.0 87 NORTHEAST ENTRANCE 7350 6.2 6.6 94 8.7 7.7 113 PARKER PEAK 9400 15.8 13.0 122 -M 9.7 * SYLVAN LAKE 8420 11.3 13.1 86 13.8 13.0 106 THUMB DIVIDE 7980 10.3 9.7 106 12.1 11.1 109 TWO OCEAN PLATEAU 9240 22.8 16.3 140 17.7 16.2 109 WHISKEY CREEK 6800 7.9 9.5 83 11.0 12.0 92 WHITE MILL 8700 14.8 14.1 105 14.9 15.7 95 WOLVERINE 7650 7.3 7.4 99 7.4 8.2 90 ----- ----- Basin wide percent of average 101 99 WIND RIVER BURROUGHS CREEK 8750 11.1 8.9 125 12.0 9.8 122 COLD SPRINGS 9630 4.5 5.5 82 6.2 6.5 95 DEER PARK 9700 5.9 9.6 61 9.6 12.8 75 HOBBS PARK 10100 6.8 9.0 76 7.1 7.4 96 LITTLE WARM 9370 6.6 6.8 97 8.5 8.1 105 SOUTH PASS 9040 6.6 9.9 67 8.7 10.7 81 ST. LAWRENCE ALT 8620 1.9 4.3 44 4.8 5.1 94 TOGWOTEE PASS 9580 17.9 14.4 124 19.7 14.7 134 TOWNSEND CREEK 8700 4.1 5.1 80 6.1 6.7 91 ----- ----- Basin wide percent of average 89 101 BIGHORN BASIN BALD MTN. 9380 13.3 11.9 112 11.2 10.3 109 BEAR TRAP MEADOW 8200 5.7 3.0 190 6.2 5.0 124 BLACKWATER 9780 15.5 14.6 106 14.1 12.6 112 BONE SPRINGS DIV 9350 13.3 9.4 141 10.5 8.5 124 EVENING STAR 9200 18.9 17.3 109 20.0 15.5 129 GRAVE SPRINGS 8550 4.7 5.0 94 5.8 5.8 100 KIRWIN 9550 8.4 7.0 120 9.5 6.9 138 MARQUETTE 8760 2.7 5.5 49 5.4 5.8 93 MIDDLE POWDER 7760 6.1 6.4 95 6.1 7.6 80 OWL CREEK 8975 3.6 3.1 116 3.6 3.3 109 POWDER RIVER PASS 9480 8.9 6.4 139 10.0 7.2 139 SHELL CREEK 9580 11.8 8.8 134 11.5 8.0 144 SYLVAN LAKE 8420 11.3 13.1 86 13.8 13.0 106 SYLVAN ROAD 7120 9.4 7.7 122 12.3 11.9 103 TIMBER CREEK 7950 2.8 3.4 82 5.8 4.1 141 YOUNTS PEAK 8350 12.8 10.2 125 11.5 10.0 115 ----- ----- Basin wide percent of average 112 116 SHOSHONE RIVER BLACKWATER 9780 15.5 14.6 106 14.1 12.6 112 EVENING STAR 9200 18.9 17.3 109 20.0 15.5 129 KIRWIN 9550 8.4 7.0 120 9.5 6.9 138 MARQUETTE 8760 2.7 5.5 49 5.4 5.8 93 SYLVAN LAKE 8420 11.3 13.1 86 13.8 13.0 106 SYLVAN ROAD 7120 9.4 7.7 122 12.3 11.9 103 YOUNTS PEAK 8350 12.8 10.2 125 11.5 10.0 115 ----- ----- Basin wide percent of average 105 114 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.7 3.0 190 6.2 5.0 124 BIG GOOSE 7990 5.5 5.3 104 7.7 4.9 157 BONE SPRINGS DIV 9350 13.3 9.4 141 10.5 8.5 124 BURGESS JUNCTION 7880 8.3 6.6 126 8.9 7.0 127 CLOUD PEAK RESERVOIR 9860 11.4 7.1 161 11.1 7.4 150 DOME LAKE 8880 8.2 7.1 115 10.1 7.8 129 GRAVE SPRINGS 8550 4.7 5.0 94 5.8 5.8 100 HANSEN SAWMILL 8360 4.2 3.8 111 6.8 4.8 142 MIDDLE POWDER 7760 6.1 6.4 95 6.1 7.6 80 POWDER RIVER PASS 9480 8.9 6.4 139 10.0 7.2 139 SUCKER CREEK 8880 9.8 6.4 153 11.5 7.8 147 TIE CREEK 6870 3.3 3.6 92 9.6 6.0 160 ----- ----- Basin wide percent of average 128 131 BELLE FOURCHE BLIND PARK 6890 6.5 4.6 141 10.9 7.1 154 COLE CANYON 5910 4.2 3.9 108 8.5 4.3 198 NORTH RAPID CREEK 6130 6.7 4.1 163 9.6 5.8 166 ----- ----- Basin wide percent of average 138 169 UPPER N. PLATTE RIVER COLUMBINE 9160 13.3 13.2 101 13.0 14.3 91 DIVIDE PEAK 8880 10.0 11.3 88 12.2 12.0 102 ELK RIVER 8700 12.2 9.8 124 12.3 11.0 112 JOE WRIGHT 10120 13.0 11.8 110 16.3 14.2 115 NORTH FRENCH CREEK 10130 16.0 16.1 99 15.6 14.4 108 OLD BATTLE 10000 15.6 17.3 90 19.7 19.5 101 SAGE CREEK BASIN 7850 5.0 6.6 76 6.8 7.0 97 SOUTH BRUSH CREEK 8440 7.2 6.3 114 8.9 9.4 95 TOWER 10500 21.0 25.5 82 22.6 22.0 103 WEBBER SPRINGS 9250 12.1 13.8 88 15.0 15.9 94 WILLOW CREEK PASS 9540 6.7 6.5 103 7.2 7.4 97 ----- ----- Basin wide percent of average 96 102 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.2 13.2 85 10.9 12.5 87 CASPER MTN. 7900 4.9 8.0 61 7.4 8.1 91 DEADMAN HILL 10220 8.8 9.2 96 9.4 9.3 101 DEER PARK 9700 5.9 9.6 61 9.6 12.8 75 LAPRELE CREEK 8375 3.6 6.4 56 4.6 7.3 63 RENO HILL 8400 5.8 7.6 76 7.1 8.4 85 ROACH 9700 9.0 9.2 98 10.5 10.2 103 SAND LAKE 10050 14.1 17.6 80 13.0 14.1 92 SOUTH PASS 9040 6.6 9.9 67 8.7 10.7 81 WINDY PEAK 7900 3.3 3.9 85 3.9 6.3 62 ----- ----- Basin wide percent of average 77 85 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.3 6.1 103 8.9 8.7 102 DIVIDE PEAK 8880 10.0 11.3 88 12.2 12.0 102 OLD BATTLE 10000 15.6 17.3 90 19.7 19.5 101 SANDSTONE RS 8150 7.5 7.6 99 10.0 10.9 92 WHISKEY PARK 8950 15.0 14.9 101 17.1 16.8 102 ----- ----- Basin wide percent of average 95 100 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.0 8.3 84 7.1 7.9 90 BLIND BULL SUM 8650 15.4 16.0 96 12.8 13.5 95 EAST RIM DIVIDE 7930 5.3 7.2 74 8.2 7.0 117 ELKHART PARK G.S. 9400 8.0 7.6 105 9.4 7.9 119 GROS VENTRE SUMMIT 8750 8.3 8.3 100 9.4 7.6 124 GUNSIGHT PASS 9820 8.4 -M * 9.4 -M * KENDALL R.S. 7740 6.9 8.4 82 9.3 8.5 109 LOOMIS PARK 8240 10.3 9.7 106 12.6 10.2 124 NEW FORK LAKE 8340 7.6 6.6 115 7.4 7.0 106 SNIDER BASIN 8060 8.7 8.4 104 9.5 9.7 98 SPRING CREEK DIVIDE 9000 15.7 15.0 105 16.5 16.1 102 TRIPLE PEAK 8500 15.5 14.4 108 17.2 14.0 123 ----- ----- Basin wide percent of average 99 109 LOWER GREEN RIVER HAMS FORK 7840 5.1 7.0 73 6.1 7.3 84 HEWINTA 9519 3.9 5.4 72 6.6 8.2 80 HICKERSON PARK 9145 1.5 3.7 41 4.0 4.7 85 HOLE-IN-ROCK 9150 2.0 3.4 59 4.1 4.3 95 INDIAN CREEK 9425 12.3 15.2 81 12.0 14.8 81 KELLEY R.S. 8180 7.3 9.2 79 9.0 12.3 73 STEEL CREEK PARK 10200 5.3 8.0 66 8.4 8.9 94 ----- ----- Basin wide percent of average 72 83 UPPER BEAR RIVER BUG LAKE 7950 6.1 10.9 56 9.2 11.2 82 HAYDEN FORK 9212 8.4 8.1 104 11.1 11.9 93 KELLEY R.S. 8180 7.3 9.2 79 9.0 12.3 73 LILY LAKE 9156 6.7 6.8 99 8.6 10.1 85 MONTE CRISTO 8960 12.7 14.7 86 13.7 14.6 94 SALT RIVER SUMMIT 7760 7.2 7.3 99 9.0 11.0 82 TRIAL LAKE 9992 11.2 13.1 85 11.2 13.7 82 ----- ----- Basin wide percent of average 85 85 ----------------------------------------------------------------------------- -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.