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 17 , 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 2.1 81 6.9 3.8 182 COTTONWOOD CREEK 7670 2.6 2.5 104 5.8 5.4 107 GRANITE CREEK 6770 1.4 1.7 82 5.5 3.4 162 GRASSY LAKE 7265 4.1 4.1 100 9.6 6.2 155 GROS VENTRE SUMMIT 8750 3.5 2.5 140 5.1 3.0 170 LEWIS LAKE DIVIDE 7850 3.9 4.0 98 9.0 6.1 148 PHILLIPS BENCH 8200 3.5 3.6 97 7.6 4.6 165 SALT RIVER SUMMIT 7760 .4 1.3 31 2.8 3.3 85 SNAKE RIVER STATION 6920 1.3 2.0 65 7.1 4.1 173 SPRING CREEK DIVIDE 9000 2.6 3.8 68 4.1 4.8 85 THUMB DIVIDE 7980 1.6 2.2 73 5.7 3.6 158 TOGWOTEE PASS 9580 6.4 4.7 136 7.6 4.9 155 TWO OCEAN PLATEAU 9240 8.5 5.6 152 8.5 5.4 157 WILLOW CREEK 8380 3.1 4.5 69 8.1 6.3 129 ----- ----- Basin wide percent of average 100 144 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 6.3 4.7 134 6.1 3.8 161 BLACK BEAR 8170 5.7 5.6 102 8.3 6.8 122 CANYON 7870 2.0 1.8 111 5.0 3.3 152 FISHER CREEK 9100 8.3 5.4 154 8.5 6.3 135 MADISON PLATEAU 7750 2.7 3.4 79 6.2 4.6 135 NORTHEAST ENTRANCE 7350 .7 1.1 64 3.9 2.7 144 PARKER PEAK 9400 5.9 4.5 131 7.0 3.8 184 SYLVAN LAKE 8420 3.2 4.0 80 7.2 4.6 157 THUMB DIVIDE 7980 1.6 2.2 73 5.7 3.6 158 TWO OCEAN PLATEAU 9240 8.5 5.6 152 8.5 5.4 157 WHISKEY CREEK 6800 1.2 2.0 60 5.1 3.9 131 WHITE MILL 8700 5.4 4.0 135 6.6 4.9 135 WOLVERINE 7650 .4 1.5 27 4.3 3.0 143 ----- ----- Basin wide percent of average 113 145 WIND RIVER BURROUGHS CREEK 8750 3.7 2.3 161 6.0 3.2 188 COLD SPRINGS 9630 .7 2.2 32 2.9 3.2 91 DEER PARK 9700 1.4 3.7 38 4.0 5.0 80 HOBBS PARK 10100 1.7 3.8 45 3.7 3.5 106 LITTLE WARM 9370 1.7 2.2 77 3.9 3.2 122 SOUTH PASS 9040 .5 3.2 16 2.9 4.0 72 ST. LAWRENCE ALT 8620 .5 1.8 28 1.8 2.7 67 TOGWOTEE PASS 9580 6.4 4.7 136 7.6 4.9 155 TOWNSEND CREEK 8700 .3 2.1 14 2.7 3.4 79 ----- ----- Basin wide percent of average 65 107 BIGHORN BASIN BALD MTN. 9380 3.6 4.5 80 4.4 3.9 113 BEAR TRAP MEADOW 8200 1.1 1.1 100 2.6 2.7 96 BLACKWATER 9780 7.2 5.2 138 6.8 4.7 145 BONE SPRINGS DIV 9350 3.4 4.2 81 4.6 3.8 121 EVENING STAR 9200 6.0 5.2 115 8.6 5.3 162 GRAVE SPRINGS 8550 1.7 2.0 85 3.3 2.8 118 KIRWIN 9550 4.6 3.0 153 6.1 3.0 203 MARQUETTE 8760 .1 2.8 4 4.1 3.3 124 MIDDLE POWDER 7760 1.8 2.5 72 3.0 3.9 77 OWL CREEK 8975 1.4 1.5 93 3.2 1.8 178 POWDER RIVER PASS 9480 2.2 2.4 92 4.3 3.0 143 SHELL CREEK 9580 5.0 4.0 125 5.7 3.3 173 SYLVAN LAKE 8420 3.2 4.0 80 7.2 4.6 157 SYLVAN ROAD 7120 1.1 1.8 61 6.5 4.2 155 TIMBER CREEK 7950 .6 1.9 32 3.9 2.5 156 YOUNTS PEAK 8350 3.9 2.8 139 6.8 3.4 200 ----- ----- Basin wide percent of average 96 144 SHOSHONE RIVER BLACKWATER 9780 7.2 5.2 138 6.8 4.7 145 EVENING STAR 9200 6.0 5.2 115 8.6 5.3 162 KIRWIN 9550 4.6 3.0 153 6.1 3.0 203 MARQUETTE 8760 .1 2.8 4 4.1 3.3 124 SYLVAN LAKE 8420 3.2 4.0 80 7.2 4.6 157 SYLVAN ROAD 7120 1.1 1.8 61 6.5 4.2 155 YOUNTS PEAK 8350 3.9 2.8 139 6.8 3.4 200 ----- ----- Basin wide percent of average 105 162 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.1 1.1 100 2.6 2.7 96 BIG GOOSE 7990 1.5 1.5 100 4.8 2.6 185 BONE SPRINGS DIV 9350 3.4 4.2 81 4.6 3.8 121 BURGESS JUNCTION 7880 1.7 2.7 63 3.9 3.3 118 CLOUD PEAK RESERVOIR 9860 3.4 2.7 126 6.1 3.9 156 DOME LAKE 8880 2.3 3.2 72 5.3 3.8 139 GRAVE SPRINGS 8550 1.7 2.0 85 3.3 2.8 118 HANSEN SAWMILL 8360 -M 1.3 * -M 2.7 * MIDDLE POWDER 7760 1.8 2.5 72 3.0 3.9 77 POWDER RIVER PASS 9480 2.2 2.4 92 4.3 3.0 143 SUCKER CREEK 8880 2.5 2.4 104 4.6 3.5 131 TIE CREEK 6870 .1 1.2 8 3.4 3.2 106 ----- ----- Basin wide percent of average 84 126 BELLE FOURCHE BLIND PARK 6890 .8 1.5 53 1.8 3.7 49 COLE CANYON 5910 .0 1.5 0 1.4 2.5 56 NORTH RAPID CREEK 6130 .6 1.0 60 1.4 3.3 42 ----- ----- Basin wide percent of average 35 48 UPPER N. PLATTE RIVER COLUMBINE 9160 .3 2.8 11 4.2 4.2 100 DIVIDE PEAK 8880 2.2 3.3 67 3.6 4.4 82 ELK RIVER 8700 .4 1.6 25 3.5 3.6 97 JOE WRIGHT 10120 4.3 4.6 93 5.9 5.6 105 NORTH FRENCH CREEK 10130 3.7 5.4 69 5.1 5.5 93 OLD BATTLE 10000 3.2 5.9 54 5.2 6.2 84 SAGE CREEK BASIN 7850 .1 1.9 5 2.9 2.6 112 SOUTH BRUSH CREEK 8440 1.2 1.7 71 4.0 4.0 100 TOWER 10500 3.5 8.0 44 5.5 7.2 76 WEBBER SPRINGS 9250 1.8 4.1 44 4.2 5.3 79 WILLOW CREEK PASS 9540 3.4 2.4 142 3.6 3.2 112 ----- ----- Basin wide percent of average 58 92 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.9 4.0 48 3.4 4.3 79 CASPER MTN. 7900 1.2 3.2 37 4.1 4.0 102 DEADMAN HILL 10220 4.2 3.7 114 3.6 3.9 92 DEER PARK 9700 1.4 3.7 38 4.0 5.0 80 LAPRELE CREEK 8375 .2 2.1 10 2.5 3.2 78 RENO HILL 8400 2.1 3.0 70 4.3 3.9 110 ROACH 9700 1.8 2.7 67 3.5 3.8 92 SAND LAKE 10050 4.6 6.2 74 5.5 5.1 108 SOUTH PASS 9040 .5 3.2 16 2.9 4.0 72 WINDY PEAK 7900 .5 1.4 36 2.1 2.8 75 ----- ----- Basin wide percent of average 55 90 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 1.2 0 2.5 3.2 78 DIVIDE PEAK 8880 2.2 3.3 67 3.6 4.4 82 OLD BATTLE 10000 3.2 5.9 54 5.2 6.2 84 SANDSTONE RS 8150 .0 1.3 0 2.6 3.9 67 WHISKEY PARK 8950 1.2 3.8 32 4.6 5.2 88 ----- ----- Basin wide percent of average 43 81 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.4 2.5 96 2.7 3.0 90 BLIND BULL SUM 8650 3.2 4.1 78 4.2 4.1 102 EAST RIM DIVIDE 7930 .4 1.8 22 2.5 2.4 104 ELKHART PARK G.S. 9400 1.8 2.1 86 3.4 3.2 106 GROS VENTRE SUMMIT 8750 3.5 2.5 140 5.1 3.0 170 KENDALL R.S. 7740 1.3 1.8 72 3.3 2.8 118 LOOMIS PARK 8240 1.4 2.5 56 3.4 3.3 103 NEW FORK LAKE 8340 1.2 1.5 80 2.9 2.7 107 SNIDER BASIN 8060 .6 2.0 30 2.5 3.0 83 SPRING CREEK DIVIDE 9000 2.6 3.8 68 4.1 4.8 85 TRIPLE PEAK 8500 2.8 3.5 80 5.7 4.2 136 ----- ----- Basin wide percent of average 75 109 LOWER GREEN RIVER HAMS FORK 7840 .1 1.3 8 1.9 2.4 79 HEWINTA 9519 .0 1.5 0 4.7 3.7 127 HICKERSON PARK 9145 .3 1.0 30 3.1 2.6 119 HOLE-IN-ROCK 9150 .3 1.0 30 3.6 2.4 150 INDIAN CREEK 9425 2.2 3.8 58 3.4 4.6 74 KELLEY R.S. 8180 .9 2.4 38 3.4 3.8 89 STEEL CREEK PARK 10200 1.5 2.8 54 5.0 3.8 132 ----- ----- Basin wide percent of average 38 108 UPPER BEAR RIVER BUG LAKE 7950 -M 2.5 * 1.8 3.9 46 HAYDEN FORK 9212 .4 1.8 22 4.0 4.2 95 KELLEY R.S. 8180 .9 2.4 38 3.4 3.8 89 LILY LAKE 9156 .3 1.9 16 4.1 4.1 100 MONTE CRISTO 8960 1.0 3.1 32 4.2 4.8 88 SALT RIVER SUMMIT 7760 .4 1.3 31 2.8 3.3 85 TRIAL LAKE 9992 1.7 3.6 47 3.3 4.7 70 ----- ----- Basin wide percent of average 33 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.