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 WEDNESDAY: NOVEMBER 14 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.4 1.8 78 6.6 3.4 194 COTTONWOOD CREEK 7670 2.6 2.1 124 5.6 4.9 114 GRANITE CREEK 6770 1.2 1.4 86 5.2 3.0 173 GRASSY LAKE 7265 3.5 3.4 103 8.7 5.6 155 GROS VENTRE SUMMIT 8750 3.2 2.3 139 4.8 2.8 171 LEWIS LAKE DIVIDE 7850 3.2 3.4 94 7.9 5.5 144 PHILLIPS BENCH 8200 3.0 3.1 97 7.0 4.1 171 SALT RIVER SUMMIT 7760 .1 1.0 10 2.7 3.0 90 SNAKE RIVER STATION 6920 .8 1.6 50 6.4 3.7 173 SPRING CREEK DIVIDE 9000 2.4 3.3 73 3.9 4.3 91 THUMB DIVIDE 7980 1.2 1.9 63 5.4 3.3 164 TOGWOTEE PASS 9580 5.9 4.3 137 7.0 4.5 156 TWO OCEAN PLATEAU 9240 7.9 5.1 155 8.0 4.9 163 WILLOW CREEK 8380 2.9 3.9 74 7.9 5.8 136 ----- ----- Basin wide percent of average 102 148 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 5.9 4.4 134 5.8 3.4 171 BLACK BEAR 8170 5.1 5.1 100 7.8 6.1 128 CANYON 7870 2.0 1.5 133 4.8 3.0 160 FISHER CREEK 9100 8.0 4.9 163 8.0 5.6 143 MADISON PLATEAU 7750 2.3 3.0 77 5.6 4.1 137 NORTHEAST ENTRANCE 7350 .0 1.0 0 3.8 2.4 158 PARKER PEAK 9400 5.6 4.1 137 6.5 3.5 186 SYLVAN LAKE 8420 2.8 3.6 78 6.8 4.2 162 THUMB DIVIDE 7980 1.2 1.9 63 5.4 3.3 164 TWO OCEAN PLATEAU 9240 7.9 5.1 155 8.0 4.9 163 WHISKEY CREEK 6800 .2 1.7 12 4.8 3.6 133 WHITE MILL 8700 5.1 3.6 142 6.2 4.4 141 WOLVERINE 7650 .2 1.3 15 4.2 2.8 150 ----- ----- Basin wide percent of average 112 151 WIND RIVER BURROUGHS CREEK 8750 3.3 2.0 165 5.4 2.8 193 COLD SPRINGS 9630 .0 2.0 0 2.8 2.9 97 DEER PARK 9700 1.6 3.6 44 3.9 4.4 89 HOBBS PARK 10100 1.7 3.4 50 3.6 3.2 112 LITTLE WARM 9370 1.4 2.0 70 3.6 2.9 124 SOUTH PASS 9040 .5 2.8 18 3.0 3.6 83 ST. LAWRENCE ALT 8620 .3 1.5 20 1.7 2.5 68 TOGWOTEE PASS 9580 5.9 4.3 137 7.0 4.5 156 TOWNSEND CREEK 8700 .2 1.8 11 2.7 3.2 84 ----- ----- Basin wide percent of average 64 112 BIGHORN BASIN BALD MTN. 9380 3.5 4.2 83 4.3 3.6 119 BEAR TRAP MEADOW 8200 1.0 1.0 100 2.5 2.5 100 BLACKWATER 9780 6.8 4.8 142 6.3 4.3 147 BONE SPRINGS DIV 9350 3.2 3.9 82 4.6 3.5 131 EVENING STAR 9200 5.5 4.8 115 8.0 4.8 167 GRAVE SPRINGS 8550 1.6 1.9 84 3.2 2.7 119 KIRWIN 9550 4.4 2.9 152 5.6 2.8 200 MARQUETTE 8760 .4 2.6 15 3.7 3.2 116 MIDDLE POWDER 7760 1.8 2.3 78 2.9 3.7 78 OWL CREEK 8975 1.5 1.3 115 3.2 1.7 188 POWDER RIVER PASS 9480 2.2 2.2 100 4.1 2.8 146 SHELL CREEK 9580 4.8 3.8 126 5.5 3.0 183 SYLVAN LAKE 8420 2.8 3.6 78 6.8 4.2 162 SYLVAN ROAD 7120 .9 1.5 60 6.1 3.7 165 TIMBER CREEK 7950 .5 1.6 31 3.8 2.3 165 YOUNTS PEAK 8350 3.7 2.6 142 6.4 3.1 206 ----- ----- Basin wide percent of average 99 148 SHOSHONE RIVER BLACKWATER 9780 6.8 4.8 142 6.3 4.3 147 EVENING STAR 9200 5.5 4.8 115 8.0 4.8 167 KIRWIN 9550 4.4 2.9 152 5.6 2.8 200 MARQUETTE 8760 .4 2.6 15 3.7 3.2 116 SYLVAN LAKE 8420 2.8 3.6 78 6.8 4.2 162 SYLVAN ROAD 7120 .9 1.5 60 6.1 3.7 165 YOUNTS PEAK 8350 3.7 2.6 142 6.4 3.1 206 ----- ----- Basin wide percent of average 107 164 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.0 1.0 100 2.5 2.5 100 BIG GOOSE 7990 1.6 1.4 114 4.9 2.5 196 BONE SPRINGS DIV 9350 3.2 3.9 82 4.6 3.5 131 BURGESS JUNCTION 7880 1.8 2.4 75 4.3 3.1 139 CLOUD PEAK RESERVOIR 9860 3.4 2.5 136 6.2 3.7 168 DOME LAKE 8880 2.4 3.1 77 5.1 3.5 146 GRAVE SPRINGS 8550 1.6 1.9 84 3.2 2.7 119 HANSEN SAWMILL 8360 -M 1.3 * -M 2.5 * MIDDLE POWDER 7760 1.8 2.3 78 2.9 3.7 78 POWDER RIVER PASS 9480 2.2 2.2 100 4.1 2.8 146 SUCKER CREEK 8880 2.4 2.1 114 4.5 3.3 136 TIE CREEK 6870 .0 1.2 0 3.3 3.1 106 ----- ----- Basin wide percent of average 89 133 BELLE FOURCHE BLIND PARK 6890 .0 1.4 0 1.7 3.5 49 COLE CANYON 5910 .0 1.4 0 1.3 2.4 54 NORTH RAPID CREEK 6130 .0 .9 0 1.4 3.1 45 ----- ----- Basin wide percent of average 0 49 UPPER N. PLATTE RIVER COLUMBINE 9160 .4 2.4 17 4.3 3.8 113 DIVIDE PEAK 8880 2.0 3.0 67 3.5 4.1 85 ELK RIVER 8700 .6 1.4 43 3.5 3.3 106 JOE WRIGHT 10120 3.0 4.2 71 5.8 5.2 112 NORTH FRENCH CREEK 10130 3.6 5.0 72 5.1 5.1 100 OLD BATTLE 10000 3.1 5.3 58 5.1 5.7 89 SAGE CREEK BASIN 7850 .1 1.7 6 2.9 2.3 126 SOUTH BRUSH CREEK 8440 1.0 1.5 67 4.0 3.8 105 TOWER 10500 3.6 7.1 51 5.5 6.5 85 WEBBER SPRINGS 9250 1.7 3.7 46 4.2 4.9 86 WILLOW CREEK PASS 9540 2.5 2.2 114 3.4 3.0 113 ----- ----- Basin wide percent of average 58 99 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.8 3.6 50 3.3 3.9 85 CASPER MTN. 7900 1.1 2.9 38 3.8 3.7 103 DEADMAN HILL 10220 3.4 3.4 100 3.6 3.6 100 DEER PARK 9700 1.6 3.6 44 3.9 4.4 89 LAPRELE CREEK 8375 .2 1.9 11 2.4 3.0 80 RENO HILL 8400 2.0 2.7 74 4.1 3.7 111 ROACH 9700 1.9 2.4 79 3.4 3.5 97 SAND LAKE 10050 4.6 5.6 82 5.5 4.7 117 SOUTH PASS 9040 .5 2.8 18 3.0 3.6 83 WINDY PEAK 7900 .4 1.2 33 1.8 2.6 69 ----- ----- Basin wide percent of average 58 95 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 1.1 0 2.5 2.9 86 DIVIDE PEAK 8880 2.0 3.0 67 3.5 4.1 85 OLD BATTLE 10000 3.1 5.3 58 5.1 5.7 89 SANDSTONE RS 8150 .0 1.1 0 2.6 3.6 72 WHISKEY PARK 8950 2.2 3.4 65 4.6 4.7 98 ----- ----- Basin wide percent of average 53 87 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.9 2.3 83 2.5 2.8 89 BLIND BULL SUM 8650 2.9 3.5 83 3.9 3.7 105 EAST RIM DIVIDE 7930 .2 1.5 13 2.3 2.2 105 ELKHART PARK G.S. 9400 1.5 1.8 83 2.7 2.9 93 GROS VENTRE SUMMIT 8750 3.2 2.3 139 4.8 2.8 171 KENDALL R.S. 7740 1.0 1.5 67 3.0 2.5 120 LOOMIS PARK 8240 1.1 2.1 52 3.1 3.0 103 NEW FORK LAKE 8340 .9 1.3 69 2.3 2.5 92 SNIDER BASIN 8060 .4 1.7 24 2.1 2.7 78 SPRING CREEK DIVIDE 9000 2.4 3.3 73 3.9 4.3 91 TRIPLE PEAK 8500 3.4 2.9 117 5.4 3.8 142 ----- ----- Basin wide percent of average 78 108 LOWER GREEN RIVER HAMS FORK 7840 .0 1.1 0 1.8 2.2 82 HEWINTA 9519 -M 1.3 * 4.7 3.4 138 HICKERSON PARK 9145 .0 .9 0 3.0 2.4 125 HOLE-IN-ROCK 9150 .2 .9 22 3.5 2.3 152 INDIAN CREEK 9425 1.9 3.3 58 3.2 4.2 76 KELLEY R.S. 8180 .7 2.1 33 3.1 3.5 89 STEEL CREEK PARK 10200 1.9 2.5 76 5.0 3.5 143 ----- ----- Basin wide percent of average 44 113 UPPER BEAR RIVER BUG LAKE 7950 -M 2.2 * 1.4 3.6 39 HAYDEN FORK 9212 .3 1.6 19 3.8 3.8 100 KELLEY R.S. 8180 .7 2.1 33 3.1 3.5 89 LILY LAKE 9156 .3 1.7 18 4.0 3.7 108 MONTE CRISTO 8960 .7 2.8 25 3.4 4.4 77 SALT RIVER SUMMIT 7760 .1 1.0 10 2.7 3.0 90 TRIAL LAKE 9992 1.6 3.3 48 3.2 4.3 74 ----- ----- Basin wide percent of average 30 82 ----------------------------------------------------------------------------- -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.