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: NOVEMBER 22 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.7 2.7 63 8.0 4.6 174 COTTONWOOD CREEK 7670 2.5 3.2 78 6.1 6.2 98 GRANITE CREEK 6770 .9 2.2 41 6.5 4.0 162 GRASSY LAKE 7265 3.6 5.3 68 11.5 7.3 158 GROS VENTRE SUMMIT 8750 3.7 3.0 123 5.6 3.4 165 LEWIS LAKE DIVIDE 7850 5.4 5.2 104 10.6 7.3 145 PHILLIPS BENCH 8200 3.9 4.5 87 8.4 5.5 153 SALT RIVER SUMMIT 7760 .0 1.7 0 2.7 3.9 69 SNAKE RIVER STATION 6920 .6 2.6 23 8.1 4.8 169 SPRING CREEK DIVIDE 9000 2.6 4.8 54 4.2 5.6 75 THUMB DIVIDE 7980 2.1 2.8 75 6.2 4.1 151 TOGWOTEE PASS 9580 7.2 5.5 131 8.5 5.7 149 TWO OCEAN PLATEAU 9240 10.9 6.5 168 10.5 6.3 167 WILLOW CREEK 8380 3.3 5.5 60 8.7 7.3 119 ----- ----- Basin wide percent of average 87 139 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.1 5.4 150 7.8 4.4 177 BLACK BEAR 8170 7.4 6.8 109 10.3 8.0 129 CANYON 7870 3.1 2.2 141 6.2 3.8 163 FISHER CREEK 9100 11.6 6.5 178 11.0 7.4 149 MADISON PLATEAU 7750 3.7 4.1 90 7.5 5.4 139 NORTHEAST ENTRANCE 7350 .4 1.4 29 4.9 3.1 158 PARKER PEAK 9400 7.1 5.1 139 7.7 4.3 179 SYLVAN LAKE 8420 4.1 4.7 87 8.4 5.4 156 THUMB DIVIDE 7980 2.1 2.8 75 6.2 4.1 151 TWO OCEAN PLATEAU 9240 10.9 6.5 168 10.5 6.3 167 WHISKEY CREEK 6800 1.4 2.5 56 6.4 4.6 139 WHITE MILL 8700 7.5 4.7 160 8.2 5.8 141 WOLVERINE 7650 .4 1.9 21 5.1 3.5 146 ----- ----- Basin wide percent of average 124 152 WIND RIVER BURROUGHS CREEK 8750 4.9 2.8 175 7.1 3.7 192 COLD SPRINGS 9630 .7 2.4 29 3.2 3.5 91 DEER PARK 9700 1.6 4.1 39 4.2 5.6 75 HOBBS PARK 10100 1.7 4.2 40 3.4 3.8 89 LITTLE WARM 9370 2.1 2.5 84 4.3 3.6 119 SOUTH PASS 9040 .5 3.7 14 3.4 4.7 72 ST. LAWRENCE ALT 8620 .1 2.0 5 1.9 3.0 63 TOGWOTEE PASS 9580 7.2 5.5 131 8.5 5.7 149 TOWNSEND CREEK 8700 .0 2.2 0 3.3 3.7 89 ----- ----- Basin wide percent of average 64 105 BIGHORN BASIN BALD MTN. 9380 3.9 4.8 81 3.9 4.3 91 BEAR TRAP MEADOW 8200 1.0 1.3 77 2.6 2.9 90 BLACKWATER 9780 8.6 6.0 143 7.9 5.5 144 BONE SPRINGS DIV 9350 3.8 4.5 84 4.8 4.2 114 EVENING STAR 9200 7.8 6.2 126 10.5 6.3 167 GRAVE SPRINGS 8550 1.5 2.3 65 3.5 3.1 113 KIRWIN 9550 4.9 3.4 144 6.2 3.4 182 MARQUETTE 8760 .0 3.0 0 3.8 3.6 106 MIDDLE POWDER 7760 1.7 2.8 61 3.2 4.2 76 OWL CREEK 8975 1.4 1.6 87 3.3 1.9 174 POWDER RIVER PASS 9480 2.5 2.6 96 4.3 3.4 126 SHELL CREEK 9580 5.4 4.3 126 6.1 3.7 165 SYLVAN LAKE 8420 4.1 4.7 87 8.4 5.4 156 SYLVAN ROAD 7120 1.0 2.2 45 8.0 5.0 160 TIMBER CREEK 7950 .3 2.0 15 4.2 2.7 156 YOUNTS PEAK 8350 4.4 3.4 129 7.4 4.0 185 ----- ----- Basin wide percent of average 95 139 SHOSHONE RIVER BLACKWATER 9780 8.6 6.0 143 7.9 5.5 144 EVENING STAR 9200 7.8 6.2 126 10.5 6.3 167 KIRWIN 9550 4.9 3.4 144 6.2 3.4 182 MARQUETTE 8760 .0 3.0 0 3.8 3.6 106 SYLVAN LAKE 8420 4.1 4.7 87 8.4 5.4 156 SYLVAN ROAD 7120 1.0 2.2 45 8.0 5.0 160 YOUNTS PEAK 8350 4.4 3.4 129 7.4 4.0 185 ----- ----- Basin wide percent of average 107 157 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.0 1.3 77 2.6 2.9 90 BIG GOOSE 7990 1.3 1.8 72 4.8 2.8 171 BONE SPRINGS DIV 9350 3.8 4.5 84 4.8 4.2 114 BURGESS JUNCTION 7880 1.8 2.9 62 4.3 3.6 119 CLOUD PEAK RESERVOIR 9860 3.5 3.0 117 5.9 4.2 140 DOME LAKE 8880 2.4 3.5 69 5.6 4.2 133 GRAVE SPRINGS 8550 1.5 2.3 65 3.5 3.1 113 HANSEN SAWMILL 8360 -M 1.5 * -M 2.8 * MIDDLE POWDER 7760 1.7 2.8 61 3.2 4.2 76 POWDER RIVER PASS 9480 2.5 2.6 96 4.3 3.4 126 SUCKER CREEK 8880 2.5 2.6 96 4.2 3.9 108 TIE CREEK 6870 .3 1.1 27 3.8 3.4 112 ----- ----- Basin wide percent of average 79 118 BELLE FOURCHE BLIND PARK 6890 .7 1.6 44 1.8 4.0 45 COLE CANYON 5910 .0 1.6 0 1.8 2.7 67 NORTH RAPID CREEK 6130 .2 1.2 17 1.2 3.5 34 ----- ----- Basin wide percent of average 20 47 UPPER N. PLATTE RIVER COLUMBINE 9160 .4 3.5 11 4.2 4.9 86 DIVIDE PEAK 8880 2.4 3.9 62 3.7 5.0 74 ELK RIVER 8700 .6 2.1 29 3.3 4.2 79 JOE WRIGHT 10120 4.9 5.2 94 6.4 6.3 102 NORTH FRENCH CREEK 10130 4.7 6.2 76 6.1 6.2 98 OLD BATTLE 10000 3.5 7.0 50 5.0 7.2 69 SAGE CREEK BASIN 7850 .0 2.3 0 3.1 2.9 107 SOUTH BRUSH CREEK 8440 1.3 2.1 62 4.3 4.4 98 TOWER 10500 4.1 9.6 43 5.9 8.3 71 WEBBER SPRINGS 9250 1.8 4.9 37 4.4 6.1 72 WILLOW CREEK PASS 9540 3.6 2.8 129 3.9 3.6 108 ----- ----- Basin wide percent of average 55 85 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.2 4.6 48 4.0 4.9 82 CASPER MTN. 7900 .7 3.7 19 4.0 4.4 91 DEADMAN HILL 10220 4.6 4.2 110 4.1 4.4 93 DEER PARK 9700 1.6 4.1 39 4.2 5.6 75 LAPRELE CREEK 8375 .0 2.5 0 2.5 3.6 69 RENO HILL 8400 1.9 3.4 56 4.1 4.3 95 ROACH 9700 2.3 3.2 72 3.8 4.3 88 SAND LAKE 10050 5.0 7.2 69 5.8 5.8 100 SOUTH PASS 9040 .5 3.7 14 3.4 4.7 72 WINDY PEAK 7900 .4 1.7 24 2.1 3.1 68 ----- ----- Basin wide percent of average 50 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 1.4 0 2.3 3.6 64 DIVIDE PEAK 8880 2.4 3.9 62 3.7 5.0 74 OLD BATTLE 10000 3.5 7.0 50 5.0 7.2 69 SANDSTONE RS 8150 .2 1.6 12 2.7 4.5 60 WHISKEY PARK 8950 2.1 4.6 46 4.9 6.0 82 ----- ----- Basin wide percent of average 44 71 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.4 3.0 47 2.4 3.5 69 BLIND BULL SUM 8650 3.6 5.0 72 4.6 4.8 96 EAST RIM DIVIDE 7930 .0 2.2 0 2.6 2.8 93 ELKHART PARK G.S. 9400 1.7 2.5 68 3.2 3.6 89 GROS VENTRE SUMMIT 8750 3.7 3.0 123 5.6 3.4 165 KENDALL R.S. 7740 .9 2.2 41 3.7 3.2 116 LOOMIS PARK 8240 1.7 3.1 55 3.4 3.8 89 NEW FORK LAKE 8340 1.1 1.9 58 2.6 3.1 84 SNIDER BASIN 8060 .3 2.5 12 2.1 3.5 60 SPRING CREEK DIVIDE 9000 2.6 4.8 54 4.2 5.6 75 TRIPLE PEAK 8500 3.1 4.4 70 5.9 5.0 118 ----- ----- Basin wide percent of average 58 95 LOWER GREEN RIVER HAMS FORK 7840 .0 1.6 0 1.8 2.8 64 HEWINTA 9519 .0 1.7 0 4.6 4.1 112 HICKERSON PARK 9145 .0 1.1 0 2.6 2.8 93 HOLE-IN-ROCK 9150 .0 1.1 0 3.6 2.6 138 INDIAN CREEK 9425 1.9 4.7 40 3.3 5.4 61 KELLEY R.S. 8180 .7 3.0 23 3.3 4.4 75 STEEL CREEK PARK 10200 1.4 3.2 44 5.2 4.3 121 ----- ----- Basin wide percent of average 24 92 UPPER BEAR RIVER BUG LAKE 7950 -M 3.0 * 1.4 4.5 31 HAYDEN FORK 9212 .4 2.2 18 3.9 4.8 81 KELLEY R.S. 8180 .7 3.0 23 3.3 4.4 75 LILY LAKE 9156 .5 2.2 23 4.1 4.6 89 MONTE CRISTO 8960 1.0 3.8 26 3.7 5.6 66 SALT RIVER SUMMIT 7760 .0 1.7 0 2.7 3.9 69 TRIAL LAKE 9992 1.6 4.3 37 3.3 5.3 62 ----- ----- Basin wide percent of average 24 68 ----------------------------------------------------------------------------- -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.