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: NOVEMBER 24 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.6 3.0 53 8.0 4.9 163 COTTONWOOD CREEK 7670 1.5 3.4 44 6.1 6.6 92 GRANITE CREEK 6770 .7 2.5 28 6.7 4.3 156 GRASSY LAKE 7265 3.8 5.7 67 11.5 7.8 147 GROS VENTRE SUMMIT 8750 3.8 3.1 123 5.6 3.6 156 LEWIS LAKE DIVIDE 7850 5.5 5.7 96 10.7 7.8 137 PHILLIPS BENCH 8200 3.9 4.9 80 8.5 5.9 144 SALT RIVER SUMMIT 7760 .1 1.9 5 2.8 4.1 68 SNAKE RIVER STATION 6920 .7 2.9 24 8.2 5.2 158 SPRING CREEK DIVIDE 9000 2.7 5.2 52 4.3 6.0 72 THUMB DIVIDE 7980 2.1 3.0 70 6.4 4.4 145 TOGWOTEE PASS 9580 7.3 5.8 126 8.6 6.0 143 TWO OCEAN PLATEAU 9240 11.0 6.8 162 10.5 6.7 157 WILLOW CREEK 8380 2.4 5.9 41 8.7 7.7 113 ----- ----- Basin wide percent of average 79 132 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.2 5.7 144 8.0 4.7 170 BLACK BEAR 8170 7.3 7.5 97 10.4 8.5 122 CANYON 7870 3.0 2.4 125 6.2 4.0 155 FISHER CREEK 9100 11.5 7.0 164 11.3 7.9 143 MADISON PLATEAU 7750 3.6 4.5 80 7.6 5.8 131 NORTHEAST ENTRANCE 7350 .5 1.6 31 4.9 3.3 148 PARKER PEAK 9400 7.1 5.5 129 7.9 4.6 172 SYLVAN LAKE 8420 4.1 5.1 80 8.4 5.8 145 THUMB DIVIDE 7980 2.1 3.0 70 6.4 4.4 145 TWO OCEAN PLATEAU 9240 11.0 6.8 162 10.5 6.7 157 WHISKEY CREEK 6800 1.4 2.8 50 6.5 4.8 135 WHITE MILL 8700 7.6 5.1 149 8.5 6.2 137 WOLVERINE 7650 .6 2.1 29 5.2 3.7 141 ----- ----- Basin wide percent of average 115 145 WIND RIVER BURROUGHS CREEK 8750 5.0 2.9 172 7.4 4.0 185 COLD SPRINGS 9630 .8 2.5 32 3.2 3.6 89 DEER PARK 9700 1.7 4.1 41 4.2 5.9 71 HOBBS PARK 10100 1.8 4.4 41 3.5 4.0 88 LITTLE WARM 9370 2.1 2.7 78 4.4 3.8 116 SOUTH PASS 9040 -M 3.9 * 3.3 4.9 67 ST. LAWRENCE ALT 8620 .2 2.1 10 1.9 3.1 61 TOGWOTEE PASS 9580 7.3 5.8 126 8.6 6.0 143 TOWNSEND CREEK 8700 .1 2.4 4 3.2 3.9 82 ----- ----- Basin wide percent of average 71 101 BIGHORN BASIN BALD MTN. 9380 3.9 5.1 76 4.3 4.5 96 BEAR TRAP MEADOW 8200 1.1 1.4 79 2.7 3.0 90 BLACKWATER 9780 8.7 6.4 136 8.1 5.9 137 BONE SPRINGS DIV 9350 3.8 4.6 83 4.9 4.3 114 EVENING STAR 9200 7.9 6.6 120 10.6 6.7 158 GRAVE SPRINGS 8550 1.4 2.4 58 3.5 3.2 109 KIRWIN 9550 5.1 3.5 146 6.3 3.5 180 MARQUETTE 8760 .0 3.1 0 4.0 3.7 108 MIDDLE POWDER 7760 1.7 3.0 57 3.3 4.4 75 OWL CREEK 8975 1.5 1.6 94 3.3 2.0 165 POWDER RIVER PASS 9480 2.5 2.7 93 4.4 3.5 126 SHELL CREEK 9580 5.5 4.4 125 6.2 3.9 159 SYLVAN LAKE 8420 4.1 5.1 80 8.4 5.8 145 SYLVAN ROAD 7120 1.0 2.5 40 8.2 5.4 152 TIMBER CREEK 7950 .5 2.1 24 4.2 2.7 156 YOUNTS PEAK 8350 4.1 3.7 111 7.5 4.3 174 ----- ----- Basin wide percent of average 91 135 SHOSHONE RIVER BLACKWATER 9780 8.7 6.4 136 8.1 5.9 137 EVENING STAR 9200 7.9 6.6 120 10.6 6.7 158 KIRWIN 9550 5.1 3.5 146 6.3 3.5 180 MARQUETTE 8760 .0 3.1 0 4.0 3.7 108 SYLVAN LAKE 8420 4.1 5.1 80 8.4 5.8 145 SYLVAN ROAD 7120 1.0 2.5 40 8.2 5.4 152 YOUNTS PEAK 8350 4.1 3.7 111 7.5 4.3 174 ----- ----- Basin wide percent of average 100 150 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.1 1.4 79 2.7 3.0 90 BIG GOOSE 7990 1.6 1.9 84 5.0 2.8 179 BONE SPRINGS DIV 9350 3.8 4.6 83 4.9 4.3 114 BURGESS JUNCTION 7880 2.2 3.0 73 4.4 3.7 119 CLOUD PEAK RESERVOIR 9860 3.9 3.2 122 6.1 4.4 139 DOME LAKE 8880 2.5 3.6 69 5.7 4.3 133 GRAVE SPRINGS 8550 1.4 2.4 58 3.5 3.2 109 HANSEN SAWMILL 8360 -M 1.6 * -M 2.9 * MIDDLE POWDER 7760 1.7 3.0 57 3.3 4.4 75 POWDER RIVER PASS 9480 2.5 2.7 93 4.4 3.5 126 SUCKER CREEK 8880 2.5 2.7 93 4.6 4.0 115 TIE CREEK 6870 .4 1.1 36 3.9 3.4 115 ----- ----- Basin wide percent of average 80 118 BELLE FOURCHE BLIND PARK 6890 1.0 1.7 59 2.1 4.1 51 COLE CANYON 5910 .0 1.7 0 1.9 2.8 68 NORTH RAPID CREEK 6130 .7 1.3 54 1.4 3.5 40 ----- ----- Basin wide percent of average 36 52 UPPER N. PLATTE RIVER COLUMBINE 9160 -M 3.8 * 4.3 5.2 83 DIVIDE PEAK 8880 2.5 4.1 61 3.7 5.2 71 ELK RIVER 8700 .9 2.3 39 3.4 4.4 77 JOE WRIGHT 10120 5.2 5.4 96 6.5 6.6 98 NORTH FRENCH CREEK 10130 4.7 6.5 72 6.1 6.4 95 OLD BATTLE 10000 3.5 7.4 47 5.1 7.6 67 SAGE CREEK BASIN 7850 .0 2.4 0 3.1 3.0 103 SOUTH BRUSH CREEK 8440 1.6 2.3 70 4.3 4.6 93 TOWER 10500 4.2 10.2 41 6.0 8.8 68 WEBBER SPRINGS 9250 1.9 5.3 36 4.5 6.4 70 WILLOW CREEK PASS 9540 3.9 3.0 130 3.9 3.8 103 ----- ----- Basin wide percent of average 58 82 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.2 4.9 45 4.0 5.2 77 CASPER MTN. 7900 .9 3.9 23 4.1 4.6 89 DEADMAN HILL 10220 4.6 4.4 105 4.1 4.6 89 DEER PARK 9700 1.7 4.1 41 4.2 5.9 71 LAPRELE CREEK 8375 .0 2.6 0 2.6 3.7 70 RENO HILL 8400 1.8 3.6 50 4.1 4.5 91 ROACH 9700 2.4 3.4 71 3.9 4.5 87 SAND LAKE 10050 4.9 7.6 64 5.7 6.0 95 SOUTH PASS 9040 -M 3.9 * 3.3 4.9 67 WINDY PEAK 7900 .4 1.8 22 2.2 3.2 69 ----- ----- Basin wide percent of average 52 81 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 1.5 * 2.4 3.7 65 DIVIDE PEAK 8880 2.5 4.1 61 3.7 5.2 71 OLD BATTLE 10000 3.5 7.4 47 5.1 7.6 67 SANDSTONE RS 8150 -M 1.8 * 2.7 4.7 57 WHISKEY PARK 8950 2.8 4.9 57 4.9 6.3 78 ----- ----- Basin wide percent of average 54 68 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.4 3.2 44 2.5 3.6 69 BLIND BULL SUM 8650 3.5 5.4 65 4.6 5.1 90 EAST RIM DIVIDE 7930 .1 2.4 4 2.7 2.9 93 ELKHART PARK G.S. 9400 1.8 2.7 67 3.3 3.8 87 GROS VENTRE SUMMIT 8750 3.8 3.1 123 5.6 3.6 156 KENDALL R.S. 7740 1.1 2.4 46 3.8 3.4 112 LOOMIS PARK 8240 1.6 3.3 48 3.6 4.1 88 NEW FORK LAKE 8340 1.2 2.1 57 2.9 3.3 88 SNIDER BASIN 8060 .3 2.7 11 2.2 3.7 59 SPRING CREEK DIVIDE 9000 2.7 5.2 52 4.3 6.0 72 TRIPLE PEAK 8500 2.6 4.8 54 6.0 5.3 113 ----- ----- Basin wide percent of average 54 93 LOWER GREEN RIVER HAMS FORK 7840 .0 1.8 0 1.8 3.0 60 HEWINTA 9519 -M 1.8 * 4.7 4.3 109 HICKERSON PARK 9145 .3 1.2 25 2.9 2.9 100 HOLE-IN-ROCK 9150 .1 1.2 8 3.7 2.7 137 INDIAN CREEK 9425 2.1 5.1 41 3.4 5.7 60 KELLEY R.S. 8180 .8 3.2 25 3.4 4.7 72 STEEL CREEK PARK 10200 1.1 3.3 33 5.3 4.5 118 ----- ----- Basin wide percent of average 28 91 UPPER BEAR RIVER BUG LAKE 7950 -M 3.2 * 1.4 4.8 29 HAYDEN FORK 9212 .7 2.4 29 3.9 5.1 76 KELLEY R.S. 8180 .8 3.2 25 3.4 4.7 72 LILY LAKE 9156 .4 2.3 17 4.1 4.8 85 MONTE CRISTO 8960 1.3 4.0 32 3.7 5.9 63 SALT RIVER SUMMIT 7760 .1 1.9 5 2.8 4.1 68 TRIAL LAKE 9992 1.9 4.5 42 3.2 5.6 57 ----- ----- Basin wide percent of average 28 64 ----------------------------------------------------------------------------- -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.