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 THURSDAY: MARCH 6 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.9 16.5 96 22.5 19.2 117 COTTONWOOD CREEK 7670 20.8 19.5 107 22.0 23.8 92 GRAND TARGHEE 9260 41.4 -M * 27.8 -M * GRANITE CREEK 6770 15.0 16.8 89 20.3 18.0 113 GRASSY LAKE 7265 27.8 30.7 91 35.1 32.0 110 GROS VENTRE SUMMIT 8750 11.3 12.0 94 12.4 11.1 112 GUNSIGHT PASS 9820 10.5 -M * 12.3 -M * LEWIS LAKE DIVIDE 7850 27.2 30.8 88 31.7 32.6 97 PHILLIPS BENCH 8200 27.1 24.9 109 29.7 25.5 116 SALT RIVER SUMMIT 7760 11.7 12.6 93 13.6 16.3 83 SNAKE RIVER STATION 6920 15.2 17.2 88 22.8 20.0 114 SPRING CREEK DIVIDE 9000 19.3 23.0 84 19.7 23.2 85 THUMB DIVIDE 7980 14.5 16.1 90 17.0 16.6 102 TOGWOTEE PASS 9580 23.3 21.4 109 25.4 21.3 119 TWO OCEAN PLATEAU 9240 30.8 24.1 128 23.3 24.2 96 WILLOW CREEK 8380 27.5 26.3 105 32.7 28.0 117 ----- ----- Basin wide percent of average 98 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 21.9 20.6 106 20.7 17.7 117 BLACK BEAR 8170 40.2 34.5 117 35.9 34.6 104 CANYON 7870 15.0 11.9 126 18.4 13.4 137 FISHER CREEK 9100 36.6 30.8 119 33.1 31.7 104 MADISON PLATEAU 7750 26.1 21.9 119 28.8 22.9 126 NORTHEAST ENTRANCE 7350 8.2 10.1 81 11.7 11.1 105 PARKER PEAK 9400 22.2 18.9 117 20.5 14.1 145 SYLVAN LAKE 8420 18.2 19.4 94 22.7 18.4 123 THUMB DIVIDE 7980 14.5 16.1 90 17.0 16.6 102 TWO OCEAN PLATEAU 9240 30.8 24.1 128 23.3 24.2 96 WHISKEY CREEK 6800 16.4 15.2 108 22.5 18.0 125 WHITE MILL 8700 23.6 21.2 111 -M 23.5 * WOLVERINE 7650 8.9 11.0 81 11.3 11.5 98 ----- ----- Basin wide percent of average 111 114 WIND RIVER BURROUGHS CREEK 8750 13.3 13.1 102 16.1 14.1 114 COLD SPRINGS 9630 5.5 7.6 72 8.6 8.7 99 DEER PARK 9700 13.0 14.6 89 17.4 18.5 94 HOBBS PARK 10100 11.6 12.5 93 12.0 10.3 117 LITTLE WARM 9370 8.1 10.0 81 11.5 11.2 103 SOUTH PASS 9040 12.2 14.7 83 15.3 15.5 99 ST. LAWRENCE ALT 8620 6.0 6.3 95 7.5 7.2 104 TOGWOTEE PASS 9580 23.3 21.4 109 25.4 21.3 119 TOWNSEND CREEK 8700 7.5 7.3 103 10.9 9.2 118 ----- ----- Basin wide percent of average 93 108 BIGHORN BASIN BALD MTN. 9380 14.1 16.6 85 13.2 14.6 90 BEAR TRAP MEADOW 8200 7.2 4.6 157 7.6 6.6 115 BLACKWATER 9780 21.1 21.2 100 19.7 17.8 111 BONE SPRINGS DIV 9350 14.5 13.7 106 15.1 12.0 126 EVENING STAR 9200 25.3 26.0 97 27.3 22.4 122 GRAVE SPRINGS 8550 8.1 7.7 105 8.9 8.1 110 KIRWIN 9550 10.3 9.6 107 12.6 9.5 133 MARQUETTE 8760 4.6 7.1 65 8.1 7.8 104 MIDDLE POWDER 7760 9.8 9.4 104 8.0 9.9 81 OWL CREEK 8975 4.6 4.3 107 5.7 4.6 124 POWDER RIVER PASS 9480 10.4 9.1 114 12.3 10.3 119 SHELL CREEK 9580 13.4 12.3 109 13.1 11.1 118 SYLVAN LAKE 8420 18.2 19.4 94 22.7 18.4 123 SYLVAN ROAD 7120 10.0 11.9 84 18.6 15.9 117 TIMBER CREEK 7950 3.4 4.4 77 7.0 5.6 125 YOUNTS PEAK 8350 14.5 15.1 96 15.4 14.0 110 ----- ----- Basin wide percent of average 98 114 SHOSHONE RIVER BLACKWATER 9780 21.1 21.2 100 19.7 17.8 111 EVENING STAR 9200 25.3 26.0 97 27.3 22.4 122 KIRWIN 9550 10.3 9.6 107 12.6 9.5 133 MARQUETTE 8760 4.6 7.1 65 8.1 7.8 104 SYLVAN LAKE 8420 18.2 19.4 94 22.7 18.4 123 SYLVAN ROAD 7120 10.0 11.9 84 18.6 15.9 117 YOUNTS PEAK 8350 14.5 15.1 96 15.4 14.0 110 ----- ----- Basin wide percent of average 94 118 POWDER-TONGUE BEAR TRAP MEADOW 8200 7.2 4.6 157 7.6 6.6 115 BIG GOOSE 7990 6.8 8.0 85 9.7 7.0 139 BONE SPRINGS DIV 9350 14.5 13.7 106 15.1 12.0 126 BURGESS JUNCTION 7880 10.3 9.4 110 11.7 9.9 118 CLOUD PEAK RESERVOIR 9860 13.0 10.5 124 12.9 10.2 126 DOME LAKE 8880 8.8 9.9 89 12.2 10.6 115 GRAVE SPRINGS 8550 8.1 7.7 105 8.9 8.1 110 HANSEN SAWMILL 8360 5.3 5.4 98 7.5 6.5 115 MIDDLE POWDER 7760 9.8 9.4 104 8.0 9.9 81 POWDER RIVER PASS 9480 10.4 9.1 114 12.3 10.3 119 SUCKER CREEK 8880 11.7 9.6 122 13.4 10.9 123 TIE CREEK 6870 6.3 5.2 121 10.2 8.1 126 ----- ----- Basin wide percent of average 109 118 BELLE FOURCHE BLIND PARK 6890 6.4 7.7 83 9.2 9.6 96 COLE CANYON 5910 5.4 5.9 92 6.5 5.7 114 NORTH RAPID CREEK 6130 7.4 7.0 106 7.4 7.7 96 ----- ----- Basin wide percent of average 93 100 UPPER N. PLATTE RIVER COLUMBINE 9160 23.0 22.6 102 24.6 21.6 114 DIVIDE PEAK 8880 20.8 16.3 128 20.8 17.7 118 ELK RIVER 8700 22.4 16.7 134 21.0 16.7 126 JOE WRIGHT 10120 20.3 17.9 113 24.1 20.9 115 NORTH FRENCH CREEK 10130 26.6 23.6 113 25.9 21.0 123 OLD BATTLE 10000 28.9 27.4 105 33.0 29.6 111 SAGE CREEK BASIN 7850 16.2 9.5 171 16.5 10.3 160 SOUTH BRUSH CREEK 8440 12.1 10.6 114 15.1 13.8 109 TOWER 10500 -M 38.8 * -M 33.1 * WEBBER SPRINGS 9250 22.8 22.4 102 26.6 22.8 117 WILLOW CREEK PASS 9540 13.8 10.0 138 14.0 10.7 131 ----- ----- Basin wide percent of average 117 120 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 17.8 19.7 90 18.7 18.2 103 CASPER MTN. 7900 11.5 11.7 98 12.5 11.5 109 DEADMAN HILL 10220 15.0 13.4 112 15.3 13.9 110 DEER PARK 9700 13.0 14.6 89 17.4 18.5 94 LAPRELE CREEK 8375 6.3 9.3 68 9.1 10.4 87 RENO HILL 8400 11.7 10.9 107 13.3 12.0 111 ROACH 9700 16.9 14.4 117 19.4 15.5 125 SAND LAKE 10050 24.0 26.4 91 23.9 20.0 119 SOUTH PASS 9040 12.2 14.7 83 15.3 15.5 99 WINDY PEAK 7900 6.9 6.4 108 8.4 8.8 95 ----- ----- Basin wide percent of average 96 106 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.0 10.2 147 15.2 12.8 119 DIVIDE PEAK 8880 20.8 16.3 128 20.8 17.7 118 OLD BATTLE 10000 28.9 27.4 105 33.0 29.6 111 SANDSTONE RS 8150 15.8 13.1 121 19.5 16.2 120 WHISKEY PARK 8950 28.8 25.0 115 30.4 24.3 125 ----- ----- Basin wide percent of average 119 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.1 12.6 88 11.1 11.7 95 BLIND BULL SUM 8650 21.2 24.0 88 15.8 19.6 81 EAST RIM DIVIDE 7930 7.4 11.5 64 9.5 10.6 90 ELKHART PARK G.S. 9400 9.5 11.5 83 10.1 11.3 89 GROS VENTRE SUMMIT 8750 11.3 12.0 94 12.4 11.1 112 GUNSIGHT PASS 9820 10.5 -M * 12.3 -M * KENDALL R.S. 7740 9.9 13.0 76 11.6 13.0 89 LOOMIS PARK 8240 13.5 15.1 89 15.0 15.3 98 NEW FORK LAKE 8340 8.1 9.9 82 8.1 9.9 82 SNIDER BASIN 8060 11.2 12.9 87 12.2 14.2 86 SPRING CREEK DIVIDE 9000 19.3 23.0 84 19.7 23.2 85 TRIPLE PEAK 8500 20.9 21.6 97 24.0 21.5 112 ----- ----- Basin wide percent of average 86 93 LOWER GREEN RIVER HAMS FORK 7840 10.4 11.5 90 8.6 10.7 80 HEWINTA 9519 11.7 9.6 122 14.5 12.1 120 HICKERSON PARK 9145 6.3 6.1 103 8.5 6.5 131 HOLE-IN-ROCK 9150 5.4 5.9 92 8.7 6.0 145 INDIAN CREEK 9425 20.0 23.3 86 -M 21.8 * KELLEY R.S. 8180 12.4 14.6 85 14.9 17.7 84 STEEL CREEK PARK 10200 12.9 13.2 98 16.3 13.4 122 ----- ----- Basin wide percent of average 94 108 UPPER BEAR RIVER BUG LAKE 7950 15.9 17.8 89 15.2 16.7 91 HAYDEN FORK 9212 17.2 13.8 125 20.9 17.7 118 KELLEY R.S. 8180 12.4 14.6 85 14.9 17.7 84 LILY LAKE 9156 13.1 11.2 117 15.8 14.8 107 MONTE CRISTO 8960 25.1 25.8 97 23.7 21.9 108 SALT RIVER SUMMIT 7760 11.7 12.6 93 13.6 16.3 83 TRIAL LAKE 9992 18.6 21.5 87 21.7 21.3 102 ----- ----- Basin wide percent of average 97 100 ----------------------------------------------------------------------------- -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.