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 21 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 2.2 2.8 79 5.7 4.8 119 COTTONWOOD CREEK 7600 4.7 3.3 142 7.6 6.4 119 GRANITE CREEK 6770 2.1 2.3 91 5.2 4.2 124 GRASSY LAKE 7265 4.4 5.3 83 11.4 7.6 150 GROS VENTRE SUMMIT 8750 3.3 3.0 110 4.6 3.5 131 LEWIS LAKE DIVIDE 7850 4.9 5.3 92 10.6 7.7 138 PHILLIPS BENCH 8200 3.5 4.5 78 7.8 5.8 134 SALT RIVER SUMMIT 7600 2.4 1.7 141 5.0 4.0 125 SNAKE RIVER STATION 6920 2.4 2.7 89 8.8 5.0 176 SPRING CREEK DIVIDE 9000 5.3 4.8 110 6.7 5.8 116 THUMB DIVIDE 7980 2.0 2.8 71 4.6 4.3 107 TOGWOTEE PASS 9580 5.4 5.5 98 6.6 5.8 114 TWO OCEAN PLATEAU 9240 5.4 6.5 83 6.6 6.5 102 WILLOW CREEK 8450 5.4 5.6 96 9.2 7.5 123 ----- ----- Basin wide percent of average 95 127 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 3.9 5.6 70 4.8 4.7 102 BLACK BEAR 8170 7.0 7.0 100 10.9 8.2 133 CANYON 8090 2.2 2.3 96 5.1 3.8 134 FISHER CREEK 9100 7.0 6.7 104 10.2 7.7 132 MADISON PLATEAU 7750 3.2 4.3 74 6.8 5.7 119 NORTHEAST ENTRANCE 7350 .8 1.6 50 5.3 3.2 166 PARKER PEAK 9400 4.4 5.3 83 6.0 4.5 133 SYLVAN LAKE 8420 2.9 4.8 60 7.3 5.6 130 THUMB DIVIDE 7980 2.0 2.8 71 4.6 4.3 107 TWO OCEAN PLATEAU 9240 5.4 6.5 83 6.6 6.5 102 WHISKEY CREEK 6800 2.1 2.6 81 6.0 4.7 128 WHITE MILL 8700 4.5 4.9 92 7.5 6.1 123 WOLVERINE 7650 1.3 2.1 62 3.7 3.6 103 ----- ----- Basin wide percent of average 83 124 WIND RIVER BURROUGHS CREEK 8750 2.5 2.8 89 4.5 3.8 118 COLD SPRINGS 9630 1.3 2.5 52 2.4 3.5 69 DEER PARK 9700 3.5 4.0 88 5.3 5.6 95 HOBBS PARK 10100 2.7 4.3 63 3.4 3.8 89 LITTLE WARM 9370 2.1 2.6 81 3.1 3.7 84 SOUTH PASS 9040 3.6 3.8 95 4.9 4.7 104 ST. LAWRENCE ALT 8620 1.5 2.1 71 2.5 2.9 86 TOGWOTEE PASS 9580 5.4 5.5 98 6.6 5.8 114 TOWNSEND CREEK 8700 2.2 2.4 92 4.5 3.7 122 ----- ----- Basin wide percent of average 83 99 BIGHORN BASIN BALD MTN. 9380 6.3 5.0 126 5.3 4.4 120 BEAR TRAP MEADOW 8200 1.7 1.3 131 2.7 2.9 93 BLACKWATER 9780 5.1 6.1 84 5.6 5.7 98 BONE SPRINGS DIV 9350 5.9 4.5 131 5.0 4.1 122 EVENING STAR 9200 4.5 6.4 70 -M 6.4 * GRAVE SPRINGS 8550 2.1 2.3 91 2.5 3.1 81 KIRWIN 9550 2.8 3.5 80 3.9 3.4 115 MARQUETTE 8760 .4 3.2 12 3.0 3.5 86 MIDDLE POWDER 7760 3.0 2.9 103 3.4 4.2 81 OWL CREEK 8975 2.0 1.6 125 2.5 1.9 132 POWDER RIVER PASS 9480 2.8 2.7 104 3.6 3.4 106 SHELL CREEK 9580 5.8 4.3 135 3.9 3.7 105 SYLVAN LAKE 8420 2.9 4.8 60 7.3 5.6 130 SYLVAN ROAD 7120 .6 2.4 25 5.4 5.1 106 TIMBER CREEK 7950 .5 2.0 25 2.6 2.6 100 YOUNTS PEAK 8350 1.9 3.5 54 5.1 4.1 124 ----- ----- Basin wide percent of average 85 107 SHOSHONE RIVER BLACKWATER 9780 5.1 6.1 84 5.6 5.7 98 EVENING STAR 9200 4.5 6.4 70 -M 6.4 * KIRWIN 9550 2.8 3.5 80 3.9 3.4 115 MARQUETTE 8760 .4 3.2 12 3.0 3.5 86 SYLVAN LAKE 8420 2.9 4.8 60 7.3 5.6 130 SYLVAN ROAD 7120 .6 2.4 25 5.4 5.1 106 YOUNTS PEAK 8350 1.9 3.5 54 5.1 4.1 124 ----- ----- Basin wide percent of average 61 111 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.7 1.3 131 2.7 2.9 93 BIG GOOSE 7990 1.4 1.8 78 3.0 2.7 111 BONE SPRINGS DIV 9350 5.9 4.5 131 5.0 4.1 122 BURGESS JUNCTION 7880 2.5 3.0 83 4.3 3.6 119 CLOUD PEAK RESERVOIR 9860 3.1 3.1 100 3.4 4.2 81 DOME LAKE 8880 2.6 3.5 74 3.5 4.1 85 GRAVE SPRINGS 8550 2.1 2.3 91 2.5 3.1 81 HANSEN SAWMILL 8360 .5 1.6 31 1.7 2.8 61 MIDDLE POWDER 7760 3.0 2.9 103 3.4 4.2 81 POWDER RIVER PASS 9480 2.8 2.7 104 3.6 3.4 106 SUCKER CREEK 8880 3.8 2.7 141 4.4 3.8 116 TIE CREEK 6870 .7 1.2 58 4.0 3.3 121 ----- ----- Basin wide percent of average 98 98 BELLE FOURCHE BLIND PARK 6890 .9 1.7 53 3.0 3.9 77 COLE CANYON 5910 1.3 1.6 81 3.2 -M * NORTH RAPID CREEK 6130 .7 1.3 54 2.5 3.4 74 ----- ----- Basin wide percent of average 63 75 UPPER N. PLATTE RIVER COLUMBINE 9160 3.6 3.5 103 6.4 5.1 125 DIVIDE PEAK 8860 4.7 3.9 121 6.9 5.1 135 ELK RIVER 8700 3.0 2.2 136 5.3 4.2 126 JOE WRIGHT 10120 -M 5.2 * 6.8 6.3 108 NORTH FRENCH CREEK 10130 6.4 6.3 102 7.4 6.2 119 OLD BATTLE 9920 7.5 6.9 109 9.6 7.4 130 SAGE CREEK BASIN 7850 3.6 2.3 157 5.2 2.9 179 SOUTH BRUSH CREEK 8440 2.5 2.1 119 4.4 4.4 100 TOWER 10500 8.6 9.5 91 10.5 8.4 125 WEBBER SPRINGS 9250 4.9 5.0 98 8.2 6.3 130 WILLOW CREEK PASS 9540 3.8 2.8 136 3.5 3.6 97 ----- ----- Basin wide percent of average 109 124 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 4.7 4.6 102 5.6 5.0 112 CASPER MTN. 7850 2.9 3.7 78 4.1 4.3 95 DEADMAN HILL 10220 3.5 4.1 85 4.6 4.4 105 DEER PARK 9700 3.5 4.0 88 5.3 5.6 95 LAPRELE CREEK 8375 2.4 2.5 96 3.2 3.5 91 RENO HILL 8500 3.9 3.4 115 4.9 4.3 114 ROACH 9700 4.7 3.2 147 6.1 4.3 142 SAND LAKE 10050 6.4 7.2 89 6.9 5.9 117 SOUTH PASS 9040 3.6 3.8 95 4.9 4.7 104 WINDY PEAK 7900 1.5 1.7 88 2.7 3.1 87 ----- ----- Basin wide percent of average 97 107 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .6 1.4 43 4.0 3.6 111 DIVIDE PEAK 8860 4.7 3.9 121 6.9 5.1 135 OLD BATTLE 9920 7.5 6.9 109 9.6 7.4 130 SANDSTONE RS 8150 1.1 1.7 65 4.3 4.5 96 WHISKEY PARK 8950 3.8 4.6 83 6.7 6.2 108 ----- ----- Basin wide percent of average 96 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.6 3.0 120 4.3 3.5 123 BLIND BULL SUM 8900 5.5 5.1 108 5.8 5.0 116 EAST RIM DIVIDE 7930 1.4 2.3 61 3.4 2.8 121 ELKHART PARK G.S. 9400 2.2 2.6 85 4.1 3.6 114 GROS VENTRE SUMMIT 8750 3.3 3.0 110 4.6 3.5 131 KENDALL R.S. 7740 1.7 2.3 74 4.1 3.3 124 LOOMIS PARK 8240 2.2 3.1 71 4.7 3.9 121 NEW FORK LAKE 8340 1.8 2.0 90 4.1 3.1 132 SNIDER BASIN 8060 2.8 2.5 112 4.5 3.6 125 SPRING CREEK DIVIDE 9000 5.3 4.8 110 6.7 5.8 116 TRIPLE PEAK 8500 4.9 4.4 111 7.5 5.1 147 ----- ----- Basin wide percent of average 99 125 LOWER GREEN RIVER HAMS FORK 7840 2.0 1.7 118 3.6 2.8 129 HEWINTA 9500 .4 1.7 24 5.0 4.1 122 HICKERSON PARK 9100 .5 1.1 45 4.0 2.7 148 HOLE-IN-ROCK 9150 2.0 1.2 167 3.5 2.6 135 INDIAN CREEK 9425 5.3 4.8 110 5.9 5.6 105 KELLEY R.S. 8180 3.3 3.0 110 5.1 4.5 113 STEEL CREEK PARK 10100 3.7 3.2 116 5.0 4.3 116 ----- ----- Basin wide percent of average 103 121 UPPER BEAR RIVER BUG LAKE 7950 3.2 3.0 107 5.4 4.6 117 HAYDEN FORK 9100 2.0 2.3 87 7.4 4.9 151 KELLEY R.S. 8180 3.3 3.0 110 5.1 4.5 113 LILY LAKE 9050 2.8 2.2 127 5.7 4.6 124 MONTE CRISTO 8960 5.4 3.8 142 7.6 5.8 131 SALT RIVER SUMMIT 7600 2.4 1.7 141 5.0 4.0 125 TRIAL LAKE 9960 3.6 4.3 84 7.4 5.4 137 ----- ----- Basin wide percent of average 112 129 ----------------------------------------------------------------------------- -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 1971-2000. 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.