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 FRIDAY: NOVEMBER 23 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.6 2.9 55 8.0 4.7 170 COTTONWOOD CREEK 7670 -M 3.3 * 6.2 6.4 97 GRANITE CREEK 6770 .8 2.3 35 6.6 4.1 161 GRASSY LAKE 7265 3.7 5.5 67 11.4 7.5 152 GROS VENTRE SUMMIT 8750 3.8 3.0 127 5.6 3.5 160 LEWIS LAKE DIVIDE 7850 5.4 5.5 98 10.7 7.6 141 PHILLIPS BENCH 8200 3.8 4.7 81 8.5 5.7 149 SALT RIVER SUMMIT 7760 .1 1.8 6 2.8 4.0 70 SNAKE RIVER STATION 6920 .6 2.8 21 8.2 5.0 164 SPRING CREEK DIVIDE 9000 2.6 5.0 52 4.3 5.8 74 THUMB DIVIDE 7980 2.1 2.9 72 6.3 4.3 147 TOGWOTEE PASS 9580 7.2 5.6 129 8.5 5.9 144 TWO OCEAN PLATEAU 9240 10.9 6.7 163 10.5 6.5 162 WILLOW CREEK 8380 -M 5.7 * 8.7 7.5 116 ----- ----- Basin wide percent of average 87 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.1 5.5 147 7.9 4.6 172 BLACK BEAR 8170 7.3 7.2 101 10.3 8.3 124 CANYON 7870 3.1 2.3 135 6.2 3.9 159 FISHER CREEK 9100 11.6 6.7 173 11.3 7.7 147 MADISON PLATEAU 7750 3.6 4.3 84 7.5 5.6 134 NORTHEAST ENTRANCE 7350 .5 1.5 33 4.9 3.2 153 PARKER PEAK 9400 7.1 5.3 134 7.8 4.4 177 SYLVAN LAKE 8420 4.1 4.9 84 8.4 5.6 150 THUMB DIVIDE 7980 2.1 2.9 72 6.3 4.3 147 TWO OCEAN PLATEAU 9240 10.9 6.7 163 10.5 6.5 162 WHISKEY CREEK 6800 1.4 2.6 54 6.4 4.7 136 WHITE MILL 8700 7.5 4.9 153 8.2 6.0 137 WOLVERINE 7650 .5 2.0 25 5.0 3.6 139 ----- ----- Basin wide percent of average 119 147 WIND RIVER BURROUGHS CREEK 8750 4.9 2.8 175 7.2 3.8 189 COLD SPRINGS 9630 .7 2.5 28 3.2 3.6 89 DEER PARK 9700 1.6 4.0 40 4.2 5.7 74 HOBBS PARK 10100 1.7 4.3 40 3.4 3.9 87 LITTLE WARM 9370 2.0 2.6 77 4.3 3.7 116 SOUTH PASS 9040 .6 3.8 16 3.4 4.8 71 ST. LAWRENCE ALT 8620 .2 2.0 10 1.9 3.0 63 TOGWOTEE PASS 9580 7.2 5.6 129 8.5 5.9 144 TOWNSEND CREEK 8700 .0 2.3 0 3.2 3.8 84 ----- ----- Basin wide percent of average 63 103 BIGHORN BASIN BALD MTN. 9380 3.9 5.0 78 4.1 4.4 93 BEAR TRAP MEADOW 8200 1.1 1.3 85 2.6 3.0 87 BLACKWATER 9780 8.6 6.2 139 8.0 5.7 140 BONE SPRINGS DIV 9350 3.8 4.6 83 4.9 4.2 117 EVENING STAR 9200 7.9 6.4 123 10.6 6.5 163 GRAVE SPRINGS 8550 1.4 2.3 61 3.5 3.2 109 KIRWIN 9550 5.0 3.4 147 6.1 3.5 174 MARQUETTE 8760 .0 3.1 0 3.9 3.7 105 MIDDLE POWDER 7760 1.7 2.9 59 3.2 4.3 74 OWL CREEK 8975 1.5 1.6 94 3.4 2.0 170 POWDER RIVER PASS 9480 2.5 2.6 96 4.4 3.5 126 SHELL CREEK 9580 5.4 4.4 123 6.2 3.8 163 SYLVAN LAKE 8420 4.1 4.9 84 8.4 5.6 150 SYLVAN ROAD 7120 1.0 2.4 42 8.1 5.2 156 TIMBER CREEK 7950 .4 2.0 20 4.2 2.7 156 YOUNTS PEAK 8350 4.1 3.5 117 7.4 4.2 176 ----- ----- Basin wide percent of average 93 136 SHOSHONE RIVER BLACKWATER 9780 8.6 6.2 139 8.0 5.7 140 EVENING STAR 9200 7.9 6.4 123 10.6 6.5 163 KIRWIN 9550 5.0 3.4 147 6.1 3.5 174 MARQUETTE 8760 .0 3.1 0 3.9 3.7 105 SYLVAN LAKE 8420 4.1 4.9 84 8.4 5.6 150 SYLVAN ROAD 7120 1.0 2.4 42 8.1 5.2 156 YOUNTS PEAK 8350 4.1 3.5 117 7.4 4.2 176 ----- ----- Basin wide percent of average 103 153 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.1 1.3 85 2.6 3.0 87 BIG GOOSE 7990 1.5 1.8 83 4.9 2.8 175 BONE SPRINGS DIV 9350 3.8 4.6 83 4.9 4.2 117 BURGESS JUNCTION 7880 2.1 2.9 72 4.4 3.7 119 CLOUD PEAK RESERVOIR 9860 3.7 3.1 119 5.9 4.3 137 DOME LAKE 8880 2.4 3.6 67 5.7 4.2 136 GRAVE SPRINGS 8550 1.4 2.3 61 3.5 3.2 109 HANSEN SAWMILL 8360 -M 1.6 * -M 2.9 * MIDDLE POWDER 7760 1.7 2.9 59 3.2 4.3 74 POWDER RIVER PASS 9480 2.5 2.6 96 4.4 3.5 126 SUCKER CREEK 8880 2.6 2.6 100 4.5 4.0 112 TIE CREEK 6870 .3 1.1 27 4.3 3.4 126 ----- ----- Basin wide percent of average 80 119 BELLE FOURCHE BLIND PARK 6890 .9 1.6 56 2.0 4.0 50 COLE CANYON 5910 .0 1.7 0 1.9 2.7 70 NORTH RAPID CREEK 6130 .8 1.3 62 1.3 3.5 37 ----- ----- Basin wide percent of average 37 51 UPPER N. PLATTE RIVER COLUMBINE 9160 .4 3.7 11 4.4 5.1 86 DIVIDE PEAK 8880 2.5 4.0 62 3.7 5.1 73 ELK RIVER 8700 .7 2.2 32 3.5 4.3 81 JOE WRIGHT 10120 5.1 5.3 96 6.4 6.5 98 NORTH FRENCH CREEK 10130 4.7 6.4 73 6.1 6.3 97 OLD BATTLE 10000 3.5 7.2 49 5.3 7.4 72 SAGE CREEK BASIN 7850 .0 2.3 0 3.0 3.0 100 SOUTH BRUSH CREEK 8440 1.4 2.2 64 4.2 4.5 93 TOWER 10500 4.1 9.9 41 6.1 8.5 72 WEBBER SPRINGS 9250 1.9 5.1 37 4.5 6.3 71 WILLOW CREEK PASS 9540 4.0 2.9 138 4.0 3.7 108 ----- ----- Basin wide percent of average 55 84 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.2 4.7 47 4.0 5.1 78 CASPER MTN. 7900 .8 3.8 21 4.0 4.5 89 DEADMAN HILL 10220 4.7 4.3 109 4.1 4.5 91 DEER PARK 9700 1.6 4.0 40 4.2 5.7 74 LAPRELE CREEK 8375 .0 2.5 0 2.5 3.6 69 RENO HILL 8400 1.9 3.5 54 4.1 4.4 93 ROACH 9700 2.4 3.3 73 3.9 4.4 89 SAND LAKE 10050 4.9 7.4 66 5.8 5.9 98 SOUTH PASS 9040 .6 3.8 16 3.4 4.8 71 WINDY PEAK 7900 .4 1.8 22 2.2 3.1 71 ----- ----- Basin wide percent of average 50 83 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 1.4 * 2.4 3.6 67 DIVIDE PEAK 8880 2.5 4.0 62 3.7 5.1 73 OLD BATTLE 10000 3.5 7.2 49 5.3 7.4 72 SANDSTONE RS 8150 -M 1.7 * 2.7 4.6 59 WHISKEY PARK 8950 2.5 4.7 53 4.9 6.1 80 ----- ----- Basin wide percent of average 53 71 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.4 3.1 45 2.5 3.5 71 BLIND BULL SUM 8650 3.6 5.2 69 4.6 5.0 92 EAST RIM DIVIDE 7930 .0 2.3 0 2.6 2.9 90 ELKHART PARK G.S. 9400 1.8 2.6 69 3.3 3.7 89 GROS VENTRE SUMMIT 8750 3.8 3.0 127 5.6 3.5 160 KENDALL R.S. 7740 1.0 2.3 43 3.7 3.3 112 LOOMIS PARK 8240 1.8 3.2 56 3.5 3.9 90 NEW FORK LAKE 8340 1.2 2.0 60 2.6 3.2 81 SNIDER BASIN 8060 .4 2.6 15 2.3 3.6 64 SPRING CREEK DIVIDE 9000 2.6 5.0 52 4.3 5.8 74 TRIPLE PEAK 8500 2.7 4.6 59 5.9 5.1 116 ----- ----- Basin wide percent of average 57 94 LOWER GREEN RIVER HAMS FORK 7840 .0 1.7 0 1.8 2.9 62 HEWINTA 9519 .0 1.7 0 4.7 4.2 112 HICKERSON PARK 9145 .0 1.2 0 2.9 2.8 104 HOLE-IN-ROCK 9150 .1 1.2 8 3.6 2.6 138 INDIAN CREEK 9425 2.2 4.9 45 3.4 5.5 62 KELLEY R.S. 8180 .9 3.1 29 3.4 4.5 76 STEEL CREEK PARK 10200 1.2 3.2 37 5.2 4.4 118 ----- ----- Basin wide percent of average 26 93 UPPER BEAR RIVER BUG LAKE 7950 -M 3.1 * 1.5 4.6 33 HAYDEN FORK 9212 .6 2.3 26 3.9 5.0 78 KELLEY R.S. 8180 .9 3.1 29 3.4 4.5 76 LILY LAKE 9156 .4 2.3 17 4.2 4.7 89 MONTE CRISTO 8960 1.0 3.9 26 3.9 5.8 67 SALT RIVER SUMMIT 7760 .1 1.8 6 2.8 4.0 70 TRIAL LAKE 9992 1.8 4.4 41 3.3 5.5 60 ----- ----- Basin wide percent of average 27 67 ----------------------------------------------------------------------------- -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.