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 27 , 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 3.4 50 8.1 5.3 153 COTTONWOOD CREEK 7670 2.0 3.9 51 6.2 7.1 87 GRANITE CREEK 6770 .9 2.8 32 6.7 4.7 143 GRASSY LAKE 7265 4.0 6.5 62 11.7 8.5 138 GROS VENTRE SUMMIT 8750 4.0 3.4 118 5.7 3.9 146 LEWIS LAKE DIVIDE 7850 5.7 6.4 89 11.1 8.6 129 PHILLIPS BENCH 8200 4.2 5.4 78 8.6 6.5 132 SALT RIVER SUMMIT 7760 .2 2.1 10 2.9 4.4 66 SNAKE RIVER STATION 6920 .8 3.3 24 8.3 5.6 148 SPRING CREEK DIVIDE 9000 2.8 5.8 48 4.4 6.5 68 THUMB DIVIDE 7980 2.2 3.4 65 6.6 4.8 138 TOGWOTEE PASS 9580 7.5 6.3 119 8.7 6.5 134 TWO OCEAN PLATEAU 9240 10.7 7.4 145 10.6 7.3 145 WILLOW CREEK 8380 2.5 6.6 38 8.7 8.3 105 ----- ----- Basin wide percent of average 74 123 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.3 6.2 134 8.1 5.2 156 BLACK BEAR 8170 7.5 8.4 89 10.5 9.3 113 CANYON 7870 2.8 2.8 100 6.2 4.3 144 FISHER CREEK 9100 11.4 8.0 142 11.5 8.6 134 MADISON PLATEAU 7750 3.9 5.3 74 7.7 6.3 122 NORTHEAST ENTRANCE 7350 .7 2.0 35 5.0 3.6 139 PARKER PEAK 9400 7.2 6.0 120 8.0 4.9 163 SYLVAN LAKE 8420 4.4 5.7 77 8.6 6.2 139 THUMB DIVIDE 7980 2.2 3.4 65 6.6 4.8 138 TWO OCEAN PLATEAU 9240 10.7 7.4 145 10.6 7.3 145 WHISKEY CREEK 6800 1.5 3.2 47 6.7 5.2 129 WHITE MILL 8700 7.7 5.7 135 8.7 6.8 128 WOLVERINE 7650 .7 2.4 29 5.3 4.0 132 ----- ----- Basin wide percent of average 104 135 WIND RIVER BURROUGHS CREEK 8750 5.0 3.3 152 7.6 4.3 177 COLD SPRINGS 9630 .5 2.8 18 3.2 3.9 82 DEER PARK 9700 1.8 4.1 44 4.2 6.4 66 HOBBS PARK 10100 1.8 4.8 38 4.0 4.2 95 LITTLE WARM 9370 2.2 2.9 76 4.5 4.1 110 SOUTH PASS 9040 .7 4.4 16 3.3 5.3 62 ST. LAWRENCE ALT 8620 .4 2.3 17 1.9 3.2 59 TOGWOTEE PASS 9580 7.5 6.3 119 8.7 6.5 134 TOWNSEND CREEK 8700 .4 2.6 15 3.1 4.1 76 ----- ----- Basin wide percent of average 61 96 BIGHORN BASIN BALD MTN. 9380 3.8 5.3 72 4.7 4.8 98 BEAR TRAP MEADOW 8200 1.3 1.5 87 2.9 3.2 91 BLACKWATER 9780 8.8 6.9 128 8.1 6.4 127 BONE SPRINGS DIV 9350 3.9 4.9 80 5.0 4.5 111 EVENING STAR 9200 7.9 7.4 107 10.7 7.3 147 GRAVE SPRINGS 8550 1.6 2.4 67 3.4 3.4 100 KIRWIN 9550 5.3 3.8 139 6.6 3.8 174 MARQUETTE 8760 .1 3.4 3 4.1 3.9 105 MIDDLE POWDER 7760 1.9 3.1 61 3.3 4.6 72 OWL CREEK 8975 1.6 1.7 94 3.3 2.1 157 POWDER RIVER PASS 9480 2.5 2.9 86 4.5 3.8 118 SHELL CREEK 9580 5.6 4.7 119 6.3 4.1 154 SYLVAN LAKE 8420 4.4 5.7 77 8.6 6.2 139 SYLVAN ROAD 7120 1.1 3.0 37 8.3 5.9 141 TIMBER CREEK 7950 .6 2.1 29 4.2 2.8 150 YOUNTS PEAK 8350 4.5 4.1 110 7.7 4.6 167 ----- ----- Basin wide percent of average 87 128 SHOSHONE RIVER BLACKWATER 9780 8.8 6.9 128 8.1 6.4 127 EVENING STAR 9200 7.9 7.4 107 10.7 7.3 147 KIRWIN 9550 5.3 3.8 139 6.6 3.8 174 MARQUETTE 8760 .1 3.4 3 4.1 3.9 105 SYLVAN LAKE 8420 4.4 5.7 77 8.6 6.2 139 SYLVAN ROAD 7120 1.1 3.0 37 8.3 5.9 141 YOUNTS PEAK 8350 4.5 4.1 110 7.7 4.6 167 ----- ----- Basin wide percent of average 94 142 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.3 1.5 87 2.9 3.2 91 BIG GOOSE 7990 2.0 2.0 100 5.4 2.9 186 BONE SPRINGS DIV 9350 3.9 4.9 80 5.0 4.5 111 BURGESS JUNCTION 7880 2.2 3.2 69 4.6 3.9 118 CLOUD PEAK RESERVOIR 9860 4.0 3.4 118 6.4 4.6 139 DOME LAKE 8880 2.8 3.8 74 5.9 4.5 131 GRAVE SPRINGS 8550 1.6 2.4 67 3.4 3.4 100 HANSEN SAWMILL 8360 -M 1.8 * -M 3.0 * MIDDLE POWDER 7760 1.9 3.1 61 3.3 4.6 72 POWDER RIVER PASS 9480 2.5 2.9 86 4.5 3.8 118 SUCKER CREEK 8880 2.7 2.8 96 5.0 4.2 119 TIE CREEK 6870 .5 1.1 45 4.0 3.5 114 ----- ----- Basin wide percent of average 82 117 BELLE FOURCHE BLIND PARK 6890 .4 1.7 24 2.3 4.2 55 COLE CANYON 5910 .2 1.9 11 1.9 2.8 68 NORTH RAPID CREEK 6130 1.1 1.5 73 1.5 3.6 42 ----- ----- Basin wide percent of average 33 54 UPPER N. PLATTE RIVER COLUMBINE 9160 .8 4.2 19 4.6 5.6 82 DIVIDE PEAK 8880 3.1 4.4 70 4.0 5.6 71 ELK RIVER 8700 1.0 2.6 38 3.7 4.7 79 JOE WRIGHT 10120 5.1 5.8 88 6.6 7.0 94 NORTH FRENCH CREEK 10130 5.2 7.0 74 6.6 6.8 97 OLD BATTLE 10000 3.7 8.0 46 5.6 8.2 68 SAGE CREEK BASIN 7850 .2 2.6 8 3.1 3.2 97 SOUTH BRUSH CREEK 8440 2.0 2.5 80 4.8 4.8 100 TOWER 10500 4.4 11.1 40 6.4 9.5 67 WEBBER SPRINGS 9250 2.1 5.8 36 4.7 6.9 68 WILLOW CREEK PASS 9540 3.7 3.2 116 4.1 4.0 102 ----- ----- Basin wide percent of average 55 82 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.6 5.3 49 4.2 5.6 75 CASPER MTN. 7900 1.1 4.2 26 4.4 4.8 92 DEADMAN HILL 10220 4.5 4.6 98 4.2 4.8 88 DEER PARK 9700 1.8 4.1 44 4.2 6.4 66 LAPRELE CREEK 8375 .0 2.8 0 2.7 3.9 69 RENO HILL 8400 2.0 3.8 53 4.4 4.7 94 ROACH 9700 2.5 3.8 66 4.2 4.8 88 SAND LAKE 10050 5.5 8.2 67 6.3 6.5 97 SOUTH PASS 9040 .7 4.4 16 3.3 5.3 62 WINDY PEAK 7900 .6 2.0 30 2.3 3.4 68 ----- ----- Basin wide percent of average 49 80 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 1.6 0 2.5 4.0 62 DIVIDE PEAK 8880 3.1 4.4 70 4.0 5.6 71 OLD BATTLE 10000 3.7 8.0 46 5.6 8.2 68 SANDSTONE RS 8150 -M 2.0 * 2.9 5.0 58 WHISKEY PARK 8950 2.5 5.4 46 5.0 6.9 72 ----- ----- Basin wide percent of average 48 67 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.6 3.5 46 2.6 3.9 67 BLIND BULL SUM 8650 3.6 6.0 60 4.6 5.6 82 EAST RIM DIVIDE 7930 .1 2.7 4 2.8 3.1 90 ELKHART PARK G.S. 9400 1.9 3.0 63 3.5 4.0 88 GROS VENTRE SUMMIT 8750 4.0 3.4 118 5.7 3.9 146 KENDALL R.S. 7740 1.3 2.7 48 3.9 3.7 105 LOOMIS PARK 8240 1.7 3.7 46 3.7 4.4 84 NEW FORK LAKE 8340 1.3 2.3 57 2.9 3.5 83 SNIDER BASIN 8060 .5 3.1 16 2.5 4.0 62 SPRING CREEK DIVIDE 9000 2.8 5.8 48 4.4 6.5 68 TRIPLE PEAK 8500 2.7 5.3 51 6.1 5.8 105 ----- ----- Basin wide percent of average 52 88 LOWER GREEN RIVER HAMS FORK 7840 .0 2.1 0 1.8 3.2 56 HEWINTA 9519 .0 1.9 0 4.8 4.5 107 HICKERSON PARK 9145 .3 1.3 23 3.2 3.0 107 HOLE-IN-ROCK 9150 .4 1.3 31 3.8 2.8 136 INDIAN CREEK 9425 2.2 5.7 39 3.5 6.2 56 KELLEY R.S. 8180 1.0 3.6 28 3.5 5.1 69 STEEL CREEK PARK 10200 -M 3.6 * 5.3 4.7 113 ----- ----- Basin wide percent of average 25 88 UPPER BEAR RIVER BUG LAKE 7950 -M 3.5 * 1.7 5.1 33 HAYDEN FORK 9212 1.4 2.6 54 4.1 5.5 75 KELLEY R.S. 8180 1.0 3.6 28 3.5 5.1 69 LILY LAKE 9156 .4 2.5 16 4.4 5.1 86 MONTE CRISTO 8960 1.4 4.5 31 4.0 6.4 62 SALT RIVER SUMMIT 7760 .2 2.1 10 2.9 4.4 66 TRIAL LAKE 9992 2.0 4.9 41 3.2 6.0 53 ----- ----- Basin wide percent of average 32 63 ----------------------------------------------------------------------------- -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.