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 12 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.1 14.1 100 20.7 16.3 127 COTTONWOOD CREEK 7670 17.7 15.6 113 19.8 20.2 98 GRAND TARGHEE 9260 36.1 -M * 25.0 -M * GRANITE CREEK 6770 13.3 13.8 96 18.9 15.1 125 GRASSY LAKE 7265 23.7 25.6 93 31.4 27.3 115 GROS VENTRE SUMMIT 8750 10.5 10.2 103 11.6 9.4 123 GUNSIGHT PASS 9820 10.0 -M * 11.4 -M * LEWIS LAKE DIVIDE 7850 24.5 25.7 95 29.1 27.3 107 PHILLIPS BENCH 8200 23.4 20.6 114 26.7 21.4 125 SALT RIVER SUMMIT 7760 10.1 10.5 96 12.2 13.8 88 SNAKE RIVER STATION 6920 13.0 14.2 92 21.1 17.1 123 SPRING CREEK DIVIDE 9000 17.4 19.2 91 17.8 19.9 89 THUMB DIVIDE 7980 12.6 13.1 96 15.2 13.9 109 TOGWOTEE PASS 9580 21.0 18.4 114 22.8 18.2 125 TWO OCEAN PLATEAU 9240 27.5 20.7 133 22.1 20.3 109 WILLOW CREEK 8380 23.0 22.2 104 28.6 23.7 121 ----- ----- Basin wide percent of average 103 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 19.7 17.6 112 18.5 15.1 123 BLACK BEAR 8170 35.7 28.0 128 32.8 28.7 114 CANYON 7870 13.2 9.8 135 16.5 11.6 142 FISHER CREEK 9100 33.0 25.8 128 30.1 26.8 112 MADISON PLATEAU 7750 22.9 17.7 129 25.8 19.2 134 NORTHEAST ENTRANCE 7350 7.0 8.5 82 10.5 9.6 109 PARKER PEAK 9400 19.3 15.9 121 18.3 12.1 151 SYLVAN LAKE 8420 15.6 16.2 96 20.1 16.0 126 THUMB DIVIDE 7980 12.6 13.1 96 15.2 13.9 109 TWO OCEAN PLATEAU 9240 27.5 20.7 133 22.1 20.3 109 WHISKEY CREEK 6800 14.6 12.2 120 20.7 15.1 137 WHITE MILL 8700 20.7 17.6 118 21.4 19.9 108 WOLVERINE 7650 7.8 9.3 84 10.3 9.9 104 ----- ----- Basin wide percent of average 118 120 WIND RIVER BURROUGHS CREEK 8750 12.5 10.9 115 15.3 12.2 125 COLD SPRINGS 9630 5.0 6.3 79 8.0 7.6 105 DEER PARK 9700 10.1 13.1 77 14.6 15.9 92 HOBBS PARK 10100 9.0 10.3 87 9.8 8.8 111 LITTLE WARM 9370 7.5 8.3 90 10.7 9.8 109 SOUTH PASS 9040 9.2 12.0 77 12.0 13.4 90 ST. LAWRENCE ALT 8620 4.2 5.1 82 5.9 6.2 95 TOGWOTEE PASS 9580 21.0 18.4 114 22.8 18.2 125 TOWNSEND CREEK 8700 4.9 6.0 82 8.0 7.9 101 ----- ----- Basin wide percent of average 92 107 BIGHORN BASIN BALD MTN. 9380 11.6 14.2 82 11.6 12.6 92 BEAR TRAP MEADOW 8200 5.9 3.8 155 6.5 5.8 112 BLACKWATER 9780 19.1 17.7 108 17.9 15.3 117 BONE SPRINGS DIV 9350 11.8 11.4 104 13.6 10.3 132 EVENING STAR 9200 22.6 21.7 104 25.2 19.2 131 GRAVE SPRINGS 8550 5.9 6.3 94 7.1 6.8 104 KIRWIN 9550 9.4 8.1 116 11.4 8.2 139 MARQUETTE 8760 2.8 6.2 45 6.7 6.7 100 MIDDLE POWDER 7760 6.6 7.9 84 6.4 8.7 74 OWL CREEK 8975 3.9 3.6 108 5.3 4.0 132 POWDER RIVER PASS 9480 8.7 7.7 113 10.7 8.9 120 SHELL CREEK 9580 11.8 10.5 112 11.7 9.9 118 SYLVAN LAKE 8420 15.6 16.2 96 20.1 16.0 126 SYLVAN ROAD 7120 8.4 9.7 87 17.0 14.2 120 TIMBER CREEK 7950 2.1 3.9 54 6.2 4.8 129 YOUNTS PEAK 8350 13.5 12.8 105 14.8 12.2 121 ----- ----- Basin wide percent of average 99 117 SHOSHONE RIVER BLACKWATER 9780 19.1 17.7 108 17.9 15.3 117 EVENING STAR 9200 22.6 21.7 104 25.2 19.2 131 KIRWIN 9550 9.4 8.1 116 11.4 8.2 139 MARQUETTE 8760 2.8 6.2 45 6.7 6.7 100 SYLVAN LAKE 8420 15.6 16.2 96 20.1 16.0 126 SYLVAN ROAD 7120 8.4 9.7 87 17.0 14.2 120 YOUNTS PEAK 8350 13.5 12.8 105 14.8 12.2 121 ----- ----- Basin wide percent of average 99 123 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.9 3.8 155 6.5 5.8 112 BIG GOOSE 7990 5.5 6.6 83 8.5 6.1 139 BONE SPRINGS DIV 9350 11.8 11.4 104 13.6 10.3 132 BURGESS JUNCTION 7880 7.7 7.9 97 9.5 8.5 112 CLOUD PEAK RESERVOIR 9860 10.4 8.7 120 11.2 8.8 127 DOME LAKE 8880 7.3 8.6 85 10.6 9.3 114 GRAVE SPRINGS 8550 5.9 6.3 94 7.1 6.8 104 HANSEN SAWMILL 8360 4.7 4.5 104 7.0 5.7 123 MIDDLE POWDER 7760 6.6 7.9 84 6.4 8.7 74 POWDER RIVER PASS 9480 8.7 7.7 113 10.7 8.9 120 SUCKER CREEK 8880 8.9 7.9 113 10.9 9.4 116 TIE CREEK 6870 4.1 4.3 95 8.1 7.2 112 ----- ----- Basin wide percent of average 102 115 BELLE FOURCHE BLIND PARK 6890 4.9 5.8 84 7.6 8.3 92 COLE CANYON 5910 4.5 5.0 90 5.5 5.0 110 NORTH RAPID CREEK 6130 5.6 5.7 98 6.0 6.8 88 ----- ----- Basin wide percent of average 91 95 UPPER N. PLATTE RIVER COLUMBINE 9160 19.3 18.7 103 21.3 18.2 117 DIVIDE PEAK 8880 17.8 13.9 128 18.0 14.9 121 ELK RIVER 8700 18.7 13.8 136 18.3 14.0 131 JOE WRIGHT 10120 17.2 15.2 113 19.9 17.6 113 NORTH FRENCH CREEK 10130 22.2 19.9 112 22.0 17.8 124 OLD BATTLE 10000 24.9 22.3 112 29.6 24.6 120 SAGE CREEK BASIN 7850 13.6 8.1 168 15.2 8.6 177 SOUTH BRUSH CREEK 8440 8.8 8.3 106 12.5 11.8 106 TOWER 10500 32.8 33.0 99 -M 27.8 * WEBBER SPRINGS 9250 19.2 17.9 107 22.7 19.5 116 WILLOW CREEK PASS 9540 12.0 8.3 145 12.1 9.1 133 ----- ----- Basin wide percent of average 115 123 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.8 16.7 95 16.4 15.4 106 CASPER MTN. 7900 7.5 9.9 76 9.8 9.7 101 DEADMAN HILL 10220 12.4 11.5 108 12.8 11.5 111 DEER PARK 9700 10.1 13.1 77 14.6 15.9 92 LAPRELE CREEK 8375 -M 7.8 * -M 8.8 * RENO HILL 8400 7.8 9.1 86 9.6 10.1 95 ROACH 9700 14.3 12.2 117 16.8 12.7 132 SAND LAKE 10050 19.8 21.7 91 19.9 17.1 116 SOUTH PASS 9040 9.2 12.0 77 12.0 13.4 90 WINDY PEAK 7900 5.2 5.1 102 6.8 7.5 91 ----- ----- Basin wide percent of average 92 105 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.2 8.5 144 13.5 10.7 126 DIVIDE PEAK 8880 17.8 13.9 128 18.0 14.9 121 OLD BATTLE 10000 24.9 22.3 112 29.6 24.6 120 SANDSTONE RS 8150 13.8 10.8 128 17.1 13.7 125 WHISKEY PARK 8950 23.9 20.6 116 27.0 20.9 129 ----- ----- Basin wide percent of average 122 124 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.1 10.5 96 10.4 9.9 105 BLIND BULL SUM 8650 18.6 20.1 93 14.5 16.7 87 EAST RIM DIVIDE 7930 6.9 9.5 73 9.0 8.8 102 ELKHART PARK G.S. 9400 8.9 9.7 92 9.7 9.6 101 GROS VENTRE SUMMIT 8750 10.5 10.2 103 11.6 9.4 123 GUNSIGHT PASS 9820 10.0 -M * 11.4 -M * KENDALL R.S. 7740 9.3 10.8 86 11.1 10.7 104 LOOMIS PARK 8240 12.3 12.4 99 14.0 12.9 109 NEW FORK LAKE 8340 7.7 8.4 92 7.9 8.5 93 SNIDER BASIN 8060 9.9 10.8 92 11.0 12.1 91 SPRING CREEK DIVIDE 9000 17.4 19.2 91 17.8 19.9 89 TRIPLE PEAK 8500 17.8 18.2 98 20.9 17.8 117 ----- ----- Basin wide percent of average 93 101 LOWER GREEN RIVER HAMS FORK 7840 8.9 9.3 96 7.7 9.1 85 HEWINTA 9519 8.3 7.6 109 12.9 10.1 128 HICKERSON PARK 9145 4.2 5.0 84 6.9 5.5 125 HOLE-IN-ROCK 9150 3.8 4.7 81 7.0 5.1 137 INDIAN CREEK 9425 17.2 19.3 89 13.4 18.4 73 KELLEY R.S. 8180 -M 11.9 * -M 15.1 * STEEL CREEK PARK 10200 10.2 10.6 96 14.0 11.1 126 ----- ----- Basin wide percent of average 93 104 UPPER BEAR RIVER BUG LAKE 7950 13.0 14.7 88 12.9 14.1 91 HAYDEN FORK 9212 14.0 11.1 126 17.9 14.9 120 KELLEY R.S. 8180 -M 11.9 * -M 15.1 * LILY LAKE 9156 10.8 9.2 117 13.7 12.5 110 MONTE CRISTO 8960 21.1 20.7 102 20.7 18.3 113 SALT RIVER SUMMIT 7760 10.1 10.5 96 12.2 13.8 88 TRIAL LAKE 9992 15.4 17.5 88 18.7 17.5 107 ----- ----- Basin wide percent of average 101 105 ----------------------------------------------------------------------------- -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.