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: FEBRUARY 3 , 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 13.0 84 13.7 15.1 91 COTTONWOOD CREEK 7670 17.7 14.5 122 21.3 19.0 112 GRAND TARGHEE 9260 26.8 -M * 23.6 -M * GRANITE CREEK 6770 11.4 12.6 90 16.0 14.0 114 GRASSY LAKE 7265 20.3 23.5 86 23.5 25.5 92 GROS VENTRE SUMMIT 8750 8.6 9.6 90 10.2 8.8 116 GUNSIGHT PASS 9820 9.8 -M * 10.8 -M * LEWIS LAKE DIVIDE 7850 17.1 23.6 72 21.6 25.3 85 PHILLIPS BENCH 8200 17.9 18.9 95 20.1 19.9 101 SALT RIVER SUMMIT 7760 8.8 9.5 93 10.4 12.8 81 SNAKE RIVER STATION 6920 11.1 12.9 86 15.1 15.8 96 SPRING CREEK DIVIDE 9000 17.6 17.7 99 18.2 18.6 98 THUMB DIVIDE 7980 11.0 12.0 92 12.8 12.9 99 TOGWOTEE PASS 9580 19.4 17.2 113 21.3 17.1 125 TWO OCEAN PLATEAU 9240 24.4 19.3 126 18.8 18.8 100 WILLOW CREEK 8380 22.0 20.6 107 26.5 22.1 120 ----- ----- Basin wide percent of average 97 102 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 15.6 16.4 95 14.3 14.2 101 BLACK BEAR 8170 21.3 26.0 82 22.5 26.6 85 CANYON 7870 8.6 9.1 95 9.5 10.9 87 FISHER CREEK 9100 24.6 24.1 102 23.1 25.0 92 MADISON PLATEAU 7750 12.4 16.4 76 14.4 17.8 81 NORTHEAST ENTRANCE 7350 7.4 7.9 94 9.7 9.0 108 PARKER PEAK 9400 17.4 15.0 116 12.6 11.3 112 SYLVAN LAKE 8420 12.9 15.4 84 15.2 15.0 101 THUMB DIVIDE 7980 11.0 12.0 92 12.8 12.9 99 TWO OCEAN PLATEAU 9240 24.4 19.3 126 18.8 18.8 100 WHISKEY CREEK 6800 8.9 11.3 79 12.0 14.0 86 WHITE MILL 8700 16.2 16.3 99 16.1 18.6 87 WOLVERINE 7650 8.7 8.8 99 8.6 9.3 92 ----- ----- Basin wide percent of average 96 93 WIND RIVER BURROUGHS CREEK 8750 12.0 10.2 118 12.8 11.4 112 COLD SPRINGS 9630 5.0 6.0 83 6.7 7.2 93 DEER PARK 9700 6.3 11.6 54 10.2 14.8 69 HOBBS PARK 10100 6.9 9.9 70 7.3 8.3 88 LITTLE WARM 9370 7.6 7.8 97 9.6 9.2 104 SOUTH PASS 9040 7.0 11.4 61 9.1 12.4 73 ST. LAWRENCE ALT 8620 2.1 4.8 44 4.9 5.8 84 TOGWOTEE PASS 9580 19.4 17.2 113 21.3 17.1 125 TOWNSEND CREEK 8700 4.3 5.6 77 6.5 7.4 88 ----- ----- Basin wide percent of average 84 94 BIGHORN BASIN BALD MTN. 9380 14.1 13.6 104 11.6 11.9 97 BEAR TRAP MEADOW 8200 6.1 3.6 169 6.7 5.6 120 BLACKWATER 9780 16.3 16.7 98 15.0 14.4 104 BONE SPRINGS DIV 9350 14.4 10.7 135 11.2 9.7 115 EVENING STAR 9200 20.3 20.0 102 21.4 17.9 120 GRAVE SPRINGS 8550 5.3 5.9 90 6.6 6.5 102 KIRWIN 9550 8.8 7.7 114 10.0 7.7 130 MARQUETTE 8760 2.9 5.9 49 5.9 6.3 94 MIDDLE POWDER 7760 6.6 7.4 89 6.7 8.4 80 OWL CREEK 8975 3.7 3.4 109 3.7 3.7 100 POWDER RIVER PASS 9480 9.4 7.4 127 10.7 8.4 127 SHELL CREEK 9580 12.7 10.0 127 12.3 9.4 131 SYLVAN LAKE 8420 12.9 15.4 84 15.2 15.0 101 SYLVAN ROAD 7120 10.3 8.9 116 13.3 13.5 99 TIMBER CREEK 7950 2.9 3.7 78 5.8 4.6 126 YOUNTS PEAK 8350 13.9 12.1 115 12.5 11.5 109 ----- ----- Basin wide percent of average 105 109 SHOSHONE RIVER BLACKWATER 9780 16.3 16.7 98 15.0 14.4 104 EVENING STAR 9200 20.3 20.0 102 21.4 17.9 120 KIRWIN 9550 8.8 7.7 114 10.0 7.7 130 MARQUETTE 8760 2.9 5.9 49 5.9 6.3 94 SYLVAN LAKE 8420 12.9 15.4 84 15.2 15.0 101 SYLVAN ROAD 7120 10.3 8.9 116 13.3 13.5 99 YOUNTS PEAK 8350 13.9 12.1 115 12.5 11.5 109 ----- ----- Basin wide percent of average 99 108 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.1 3.6 169 6.7 5.6 120 BIG GOOSE 7990 6.0 6.1 98 8.2 5.8 141 BONE SPRINGS DIV 9350 14.4 10.7 135 11.2 9.7 115 BURGESS JUNCTION 7880 8.8 7.5 117 9.5 8.0 119 CLOUD PEAK RESERVOIR 9860 12.4 8.2 151 11.9 8.3 143 DOME LAKE 8880 8.8 8.0 110 10.8 8.8 123 GRAVE SPRINGS 8550 5.3 5.9 90 6.6 6.5 102 HANSEN SAWMILL 8360 4.4 4.3 102 7.3 5.4 135 MIDDLE POWDER 7760 6.6 7.4 89 6.7 8.4 80 POWDER RIVER PASS 9480 9.4 7.4 127 10.7 8.4 127 SUCKER CREEK 8880 10.5 7.4 142 12.3 8.9 138 TIE CREEK 6870 3.8 4.1 93 10.2 6.9 148 ----- ----- Basin wide percent of average 120 124 BELLE FOURCHE BLIND PARK 6890 7.5 5.5 136 11.9 7.9 151 COLE CANYON 5910 4.5 4.6 98 9.3 4.8 194 NORTH RAPID CREEK 6130 7.1 5.1 139 10.2 6.4 159 ----- ----- Basin wide percent of average 126 164 UPPER N. PLATTE RIVER COLUMBINE 9160 18.4 16.9 109 17.6 16.9 104 DIVIDE PEAK 8880 14.2 13.2 108 16.2 13.9 117 ELK RIVER 8700 16.2 12.5 130 15.7 12.9 122 JOE WRIGHT 10120 16.1 14.1 114 19.7 16.5 119 NORTH FRENCH CREEK 10130 21.6 18.7 116 20.7 16.6 125 OLD BATTLE 10000 20.9 20.4 102 25.4 22.8 111 SAGE CREEK BASIN 7850 7.5 7.7 97 8.8 8.1 109 SOUTH BRUSH CREEK 8440 9.5 7.6 125 11.2 11.0 102 TOWER 10500 28.4 30.6 93 28.7 25.8 111 WEBBER SPRINGS 9250 15.8 16.4 96 19.0 18.3 104 WILLOW CREEK PASS 9540 8.7 7.7 113 8.2 8.4 98 ----- ----- Basin wide percent of average 107 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.4 15.6 92 13.7 14.5 94 CASPER MTN. 7900 5.9 9.2 64 8.5 9.1 93 DEADMAN HILL 10220 11.2 10.7 105 11.7 10.8 108 DEER PARK 9700 6.3 11.6 54 10.2 14.8 69 LAPRELE CREEK 8375 5.3 7.4 72 6.3 8.3 76 RENO HILL 8400 7.3 8.5 86 8.4 9.5 88 ROACH 9700 11.2 11.2 100 12.9 11.8 109 SAND LAKE 10050 18.1 20.3 89 16.7 16.1 104 SOUTH PASS 9040 7.0 11.4 61 9.1 12.4 73 WINDY PEAK 7900 5.1 4.6 111 5.8 7.1 82 ----- ----- Basin wide percent of average 83 90 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.5 8.0 119 11.9 10.0 119 DIVIDE PEAK 8880 14.2 13.2 108 16.2 13.9 117 OLD BATTLE 10000 20.9 20.4 102 25.4 22.8 111 SANDSTONE RS 8150 10.4 9.9 105 13.3 12.7 105 WHISKEY PARK 8950 21.0 18.9 111 22.5 19.7 114 ----- ----- Basin wide percent of average 108 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 8.0 9.7 82 8.1 9.2 88 BLIND BULL SUM 8650 17.0 18.7 91 14.3 15.6 92 EAST RIM DIVIDE 7930 6.6 8.7 76 9.2 8.2 112 ELKHART PARK G.S. 9400 9.3 8.9 104 10.4 9.0 116 GROS VENTRE SUMMIT 8750 8.6 9.6 90 10.2 8.8 116 GUNSIGHT PASS 9820 9.8 -M * 10.8 -M * KENDALL R.S. 7740 8.0 10.0 80 10.3 9.9 104 LOOMIS PARK 8240 11.8 11.5 103 14.2 12.0 118 NEW FORK LAKE 8340 8.7 7.8 112 8.4 8.0 105 SNIDER BASIN 8060 9.7 10.0 97 10.4 11.3 92 SPRING CREEK DIVIDE 9000 17.6 17.7 99 18.2 18.6 98 TRIPLE PEAK 8500 16.9 16.9 100 18.7 16.5 113 ----- ----- Basin wide percent of average 94 104 LOWER GREEN RIVER HAMS FORK 7840 6.7 8.5 79 7.5 8.5 88 HEWINTA 9519 5.2 6.9 75 7.9 9.5 83 HICKERSON PARK 9145 1.9 4.5 42 4.5 5.3 85 HOLE-IN-ROCK 9150 2.4 4.2 57 4.5 4.8 94 INDIAN CREEK 9425 14.5 17.9 81 13.9 17.1 81 KELLEY R.S. 8180 9.5 10.9 87 11.2 14.1 79 STEEL CREEK PARK 10200 6.7 9.6 70 9.8 10.3 95 ----- ----- Basin wide percent of average 75 85 UPPER BEAR RIVER BUG LAKE 7950 10.0 13.5 74 11.1 13.1 85 HAYDEN FORK 9212 10.7 10.0 107 13.3 13.8 96 KELLEY R.S. 8180 9.5 10.9 87 11.2 14.1 79 LILY LAKE 9156 8.6 8.4 102 10.3 11.6 89 MONTE CRISTO 8960 16.2 18.7 87 16.8 17.0 99 SALT RIVER SUMMIT 7760 8.8 9.5 93 10.4 12.8 81 TRIAL LAKE 9992 14.4 16.0 90 14.2 16.1 88 ----- ----- Basin wide percent of average 90 89 ----------------------------------------------------------------------------- -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.