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: NOVEMBER 13 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .8 1.6 50 5.9 3.3 179 COTTONWOOD CREEK 7670 2.4 2.0 120 5.5 4.7 117 GRANITE CREEK 6770 .9 1.3 69 4.7 2.9 162 GRASSY LAKE 7265 2.9 3.2 91 8.0 5.4 148 GROS VENTRE SUMMIT 8750 2.9 2.2 132 4.6 2.7 170 LEWIS LAKE DIVIDE 7850 2.2 3.2 69 7.2 5.2 138 PHILLIPS BENCH 8200 2.3 3.0 77 6.4 3.9 164 SALT RIVER SUMMIT 7760 .2 1.0 20 2.7 3.0 90 SNAKE RIVER STATION 6920 .4 1.5 27 5.8 3.6 161 SPRING CREEK DIVIDE 9000 2.1 3.1 68 3.6 4.2 86 THUMB DIVIDE 7980 1.1 1.8 61 5.2 3.2 162 TOGWOTEE PASS 9580 5.5 4.1 134 6.6 4.3 153 TWO OCEAN PLATEAU 9240 6.8 4.9 139 7.2 4.7 153 WILLOW CREEK 8380 2.6 3.7 70 7.6 5.6 136 ----- ----- Basin wide percent of average 90 143 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 5.8 4.3 135 5.6 3.3 170 BLACK BEAR 8170 5.0 4.8 104 7.6 5.9 129 CANYON 7870 1.6 1.5 107 4.4 2.9 152 FISHER CREEK 9100 6.9 4.8 144 7.6 5.4 141 MADISON PLATEAU 7750 2.1 2.9 72 5.6 4.0 140 NORTHEAST ENTRANCE 7350 .4 .9 44 3.6 2.3 157 PARKER PEAK 9400 5.3 4.0 132 6.4 3.3 194 SYLVAN LAKE 8420 2.6 3.4 76 6.6 4.0 165 THUMB DIVIDE 7980 1.1 1.8 61 5.2 3.2 162 TWO OCEAN PLATEAU 9240 6.8 4.9 139 7.2 4.7 153 WHISKEY CREEK 6800 .8 1.6 50 4.8 3.5 137 WHITE MILL 8700 4.6 3.5 131 5.8 4.3 135 WOLVERINE 7650 .5 1.3 38 4.1 2.7 152 ----- ----- Basin wide percent of average 110 151 WIND RIVER BURROUGHS CREEK 8750 2.8 1.9 147 5.1 2.7 189 COLD SPRINGS 9630 .5 1.8 28 2.8 2.8 100 DEER PARK 9700 -M 3.6 * 3.8 4.3 88 HOBBS PARK 10100 1.7 3.3 52 3.6 3.2 112 LITTLE WARM 9370 1.3 1.9 68 3.4 2.8 121 SOUTH PASS 9040 .5 2.7 19 2.9 3.5 83 ST. LAWRENCE ALT 8620 .5 1.5 33 1.7 2.5 68 TOGWOTEE PASS 9580 5.5 4.1 134 6.6 4.3 153 TOWNSEND CREEK 8700 .3 1.7 18 2.6 3.1 84 ----- ----- Basin wide percent of average 69 111 BIGHORN BASIN BALD MTN. 9380 3.4 4.1 83 4.2 3.5 120 BEAR TRAP MEADOW 8200 1.0 1.0 100 2.5 2.5 100 BLACKWATER 9780 6.0 4.6 130 6.0 4.1 146 BONE SPRINGS DIV 9350 3.1 3.8 82 4.5 3.5 129 EVENING STAR 9200 5.1 4.7 109 7.7 4.6 167 GRAVE SPRINGS 8550 1.7 1.8 94 3.1 2.6 119 KIRWIN 9550 4.2 2.8 150 5.3 2.7 196 MARQUETTE 8760 .0 2.6 0 3.7 3.1 119 MIDDLE POWDER 7760 1.8 2.2 82 2.9 3.6 81 OWL CREEK 8975 1.4 1.3 108 3.1 1.6 194 POWDER RIVER PASS 9480 2.0 2.2 91 4.0 2.7 148 SHELL CREEK 9580 4.8 3.7 130 5.5 3.0 183 SYLVAN LAKE 8420 2.6 3.4 76 6.6 4.0 165 SYLVAN ROAD 7120 .6 1.4 43 5.8 3.5 166 TIMBER CREEK 7950 .6 1.6 37 3.7 2.2 168 YOUNTS PEAK 8350 3.3 2.5 132 6.2 3.0 207 ----- ----- Basin wide percent of average 95 149 SHOSHONE RIVER BLACKWATER 9780 6.0 4.6 130 6.0 4.1 146 EVENING STAR 9200 5.1 4.7 109 7.7 4.6 167 KIRWIN 9550 4.2 2.8 150 5.3 2.7 196 MARQUETTE 8760 .0 2.6 0 3.7 3.1 119 SYLVAN LAKE 8420 2.6 3.4 76 6.6 4.0 165 SYLVAN ROAD 7120 .6 1.4 43 5.8 3.5 166 YOUNTS PEAK 8350 3.3 2.5 132 6.2 3.0 207 ----- ----- Basin wide percent of average 99 165 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.0 1.0 100 2.5 2.5 100 BIG GOOSE 7990 1.4 1.3 108 4.7 2.5 188 BONE SPRINGS DIV 9350 3.1 3.8 82 4.5 3.5 129 BURGESS JUNCTION 7880 1.6 2.4 67 4.1 3.0 137 CLOUD PEAK RESERVOIR 9860 3.2 2.5 128 6.1 3.6 169 DOME LAKE 8880 2.3 3.0 77 5.1 3.5 146 GRAVE SPRINGS 8550 1.7 1.8 94 3.1 2.6 119 HANSEN SAWMILL 8360 -M 1.3 * -M 2.5 * MIDDLE POWDER 7760 1.8 2.2 82 2.9 3.6 81 POWDER RIVER PASS 9480 2.0 2.2 91 4.0 2.7 148 SUCKER CREEK 8880 2.4 2.1 114 4.5 3.3 136 TIE CREEK 6870 .1 1.2 8 3.2 3.0 107 ----- ----- Basin wide percent of average 88 132 BELLE FOURCHE BLIND PARK 6890 .4 1.4 29 1.7 3.4 50 COLE CANYON 5910 .0 1.4 0 1.2 2.3 52 NORTH RAPID CREEK 6130 .9 .9 100 1.4 3.1 45 ----- ----- Basin wide percent of average 35 49 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 2.2 5 4.1 3.7 111 DIVIDE PEAK 8880 2.0 2.9 69 3.5 3.9 90 ELK RIVER 8700 .6 1.3 46 3.4 3.2 106 JOE WRIGHT 10120 3.0 4.1 73 5.5 5.0 110 NORTH FRENCH CREEK 10130 3.2 4.8 67 4.8 4.9 98 OLD BATTLE 10000 2.9 5.1 57 4.9 5.5 89 SAGE CREEK BASIN 7850 .1 1.7 6 2.9 2.3 126 SOUTH BRUSH CREEK 8440 1.1 1.4 79 3.9 3.7 105 TOWER 10500 3.2 6.7 48 5.3 6.3 84 WEBBER SPRINGS 9250 1.5 3.5 43 4.0 4.7 85 WILLOW CREEK PASS 9540 2.5 2.1 119 3.3 2.9 114 ----- ----- Basin wide percent of average 56 99 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.7 3.5 49 3.1 3.8 82 CASPER MTN. 7900 1.2 2.8 43 4.0 3.7 108 DEADMAN HILL 10220 3.4 3.3 103 3.6 3.5 103 DEER PARK 9700 -M 3.6 * 3.8 4.3 88 LAPRELE CREEK 8375 .2 1.8 11 2.4 2.9 83 RENO HILL 8400 2.1 2.6 81 4.3 3.6 119 ROACH 9700 1.9 2.3 83 3.4 3.4 100 SAND LAKE 10050 4.5 5.4 83 5.4 4.5 120 SOUTH PASS 9040 .5 2.7 19 2.9 3.5 83 WINDY PEAK 7900 .5 1.2 42 2.0 2.5 80 ----- ----- Basin wide percent of average 62 98 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 1.0 * 2.4 2.8 86 DIVIDE PEAK 8880 2.0 2.9 69 3.5 3.9 90 OLD BATTLE 10000 2.9 5.1 57 4.9 5.5 89 SANDSTONE RS 8150 .0 1.1 0 2.5 3.5 71 WHISKEY PARK 8950 2.1 3.2 66 4.4 4.5 98 ----- ----- Basin wide percent of average 57 88 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.8 2.2 82 2.4 2.7 89 BLIND BULL SUM 8650 2.3 3.4 68 3.6 3.5 103 EAST RIM DIVIDE 7930 .1 1.4 7 2.2 2.1 105 ELKHART PARK G.S. 9400 1.6 1.7 94 3.0 2.9 103 GROS VENTRE SUMMIT 8750 2.9 2.2 132 4.6 2.7 170 KENDALL R.S. 7740 .8 1.5 53 2.8 2.4 117 LOOMIS PARK 8240 .8 2.0 40 2.9 2.9 100 NEW FORK LAKE 8340 .7 1.2 58 2.4 2.4 100 SNIDER BASIN 8060 .4 1.6 25 2.2 2.6 85 SPRING CREEK DIVIDE 9000 2.1 3.1 68 3.6 4.2 86 TRIPLE PEAK 8500 2.9 2.8 104 5.0 3.6 139 ----- ----- Basin wide percent of average 71 108 LOWER GREEN RIVER HAMS FORK 7840 .0 1.0 0 1.8 2.2 82 HEWINTA 9519 -M 1.3 * 4.6 3.3 139 HICKERSON PARK 9145 .0 .8 0 3.0 2.4 125 HOLE-IN-ROCK 9150 .2 .9 22 3.6 2.2 164 INDIAN CREEK 9425 1.9 3.2 59 3.2 4.1 78 KELLEY R.S. 8180 .7 2.0 35 3.2 3.4 94 STEEL CREEK PARK 10200 1.5 2.5 60 4.9 3.4 144 ----- ----- Basin wide percent of average 41 116 UPPER BEAR RIVER BUG LAKE 7950 .0 2.1 0 1.6 3.5 46 HAYDEN FORK 9212 .3 1.5 20 3.7 3.7 100 KELLEY R.S. 8180 .7 2.0 35 3.2 3.4 94 LILY LAKE 9156 .5 1.6 31 4.1 3.6 114 MONTE CRISTO 8960 .7 2.7 26 3.7 4.3 86 SALT RIVER SUMMIT 7760 .2 1.0 20 2.7 3.0 90 TRIAL LAKE 9992 1.4 3.2 44 3.2 4.2 76 ----- ----- Basin wide percent of average 27 86 ----------------------------------------------------------------------------- -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.