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 12 , 2002 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.1 1.7 182* 3.5 3.6 97 COTTONWOOD CREEK 7600 3.5 2.1 167* 4.6 4.9 94 GRANITE CREEK 6770 2.9 1.4 207* 3.8 3.1 123 GRASSY LAKE 7265 4.0 3.4 118* 5.1 5.7 89 GROS VENTRE SUMMIT 8775 2.6 2.2 118 2.5 2.8 89 LEWIS LAKE DIVIDE 7860 3.5 3.3 106* 4.9 5.7 86 PHILLIPS BENCH 8200 4.1 3.0 137* 4.9 4.3 114 SALT RIVER SUMMIT 7600 1.5 1.0 150* 2.7 3.1 87 SNAKE RIVER STATION 6920 2.4 1.6 150* 3.7 3.8 97 SPRING CREEK DIVIDE 9000 3.4 3.2 106 3.8 4.4 86 THUMB DIVIDE 7980 2.4 1.8 133* 3.6 3.3 109 TOGWOTEE PASS 9580 4.1 4.2 98 4.1 4.5 91 TWO OCEAN PLATEAU 9360 6.8 4.9 139 4.1 5.0 82 WILLOW CREEK 8450 3.2 3.8 84 5.2 5.9 88 ----- ----- Basin wide percent of average 126* 94 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.1 4.3 95 3.0 3.6 83 BLACK BEAR 8170 4.3 4.9 88 4.5 6.1 74 CANYON 8090 1.5 1.5 100 2.3 3.0 77 FISHER CREEK 9100 3.5 4.8 73 3.5 5.7 61 MADISON PLATEAU 7750 2.3 3.0 77 3.1 4.3 72 NORTHEAST ENTRANCE 7350 .6 .9 67* 1.7 2.5 68 PARKER PEAK 9400 4.3 4.0 108 3.7 3.5 106 SYLVAN LAKE 8420 3.0 3.5 86 4.7 4.3 109 THUMB DIVIDE 7980 2.4 1.8 133* 3.6 3.3 109 TWO OCEAN PLATEAU 9360 6.8 4.9 139 4.1 5.0 82 WHISKEY CREEK 6800 1.5 1.7 88* 2.3 3.6 64 WHITE MILL 8700 3.2 3.5 91 2.9 4.6 63 WOLVERINE 7650 .6 1.3 46 2.6 2.9 90 ----- ----- Basin wide percent of average 95 80 WIND RIVER BURROUGHS CREEK 8750 3.6 1.9 189 4.2 2.9 145 COLD SPRINGS 9630 1.7 1.9 89 2.9 2.8 104 DEER PARK 9700 3.0 3.5 86 3.4 4.2 81 HOBBS PARK 10100 3.6 3.4 106 3.3 3.1 106 LITTLE WARM 9370 2.0 2.0 100 2.6 2.8 93 SOUTH PASS 9040 2.5 2.8 89 3.3 3.6 92 ST. LAWRENCE ALT 8620 1.3 1.6 81 3.0 2.4 125 TOGWOTEE PASS 9580 4.1 4.2 98 4.1 4.5 91 TOWNSEND CREEK 8700 1.4 1.8 78 3.4 3.0 113 ----- ----- Basin wide percent of average 100 103 BIGHORN BASIN BALD MTN. 9380 3.4 4.1 83 3.1 3.5 89 BEAR TRAP MEADOW 8200 .7 1.0 70 1.6 2.4 67 BLACKWATER 9780 4.3 4.7 91 3.7 4.4 84 BONE SPRINGS DIV 9350 3.3 3.8 87 2.8 3.4 82 EVENING STAR 9200 2.9 4.7 62 3.7 4.8 77 GRAVE SPRINGS 8550 .5 1.8 28 1.7 2.7 63 KIRWIN 9550 2.4 2.8 86 2.5 2.7 93 MARQUETTE 8760 2.3 2.6 88 1.4 3.0 47 MIDDLE POWDER 7760 1.2 2.2 55 1.9 3.5 54 OWL CREEK 8975 1.9 1.4 136 1.9 1.6 119 POWDER RIVER PASS 9480 1.9 2.1 90 2.6 2.8 93 SHELL CREEK 9580 3.2 3.6 89 3.1 3.0 103 SYLVAN LAKE 8420 3.0 3.5 86 4.7 4.3 109 SYLVAN ROAD 7120 1.9 1.4 136 3.6 3.8 95 TIMBER CREEK 7950 1.5 1.7 88 2.6 2.2 118 YOUNTS PEAK 8350 3.0 2.5 120 3.0 3.1 97 ----- ----- Basin wide percent of average 85 86 SHOSHONE RIVER BLACKWATER 9780 4.3 4.7 91 3.7 4.4 84 EVENING STAR 9200 2.9 4.7 62 3.7 4.8 77 KIRWIN 9550 2.4 2.8 86 2.5 2.7 93 MARQUETTE 8760 2.3 2.6 88 1.4 3.0 47 SYLVAN LAKE 8420 3.0 3.5 86 4.7 4.3 109 SYLVAN ROAD 7120 1.9 1.4 136 3.6 3.8 95 YOUNTS PEAK 8350 3.0 2.5 120 3.0 3.1 97 ----- ----- Basin wide percent of average 89 87 POWDER-TONGUE BEAR TRAP MEADOW 8200 .7 1.0 70 1.6 2.4 67 BIG GOOSE 7990 1.8 1.4 129 2.6 2.5 104 BONE SPRINGS DIV 9350 3.3 3.8 87 2.8 3.4 82 BURGESS JUNCTION 7880 1.7 2.5 68 2.4 3.0 80 CLOUD PEAK RESERVOIR 9860 2.2 2.5 88 2.4 3.5 69 DOME LAKE 8880 2.6 2.9 90 3.1 3.4 91 GRAVE SPRINGS 8550 .5 1.8 28 1.7 2.7 63 HANSEN SAWMILL 8360 1.6 1.2 133 2.2 2.4 92 MIDDLE POWDER 7760 1.2 2.2 55 1.9 3.5 54 POWDER RIVER PASS 9480 1.9 2.1 90 2.6 2.8 93 SUCKER CREEK 8880 1.8 2.2 82 2.8 3.2 87 TIE CREEK 6870 .6 1.1 55 2.4 3.0 80 ----- ----- Basin wide percent of average 81 80 BELLE FOURCHE BLIND PARK 6890 1.1 1.3 85 2.2 3.4 65 COLE CANYON 5910 .4 -M * 1.4 -M * NORTH RAPID CREEK 6130 .9 .9 100 1.9 3.0 63 ----- ----- Basin wide percent of average 91 64 UPPER N. PLATTE RIVER COLUMBINE 9400 3.2 2.2 145* 5.2 3.9 133 DIVIDE PEAK 8800 2.2 2.9 76 4.5 4.0 112 ELK RIVER 8700 2.1 1.4 150* 4.2 3.4 124 JOE WRIGHT 10120 3.7 4.1 90 5.5 5.0 110 NORTH FRENCH CREEK 10100 3.6 4.9 73 4.1 5.0 82 OLD BATTLE 10000 4.4 5.2 85 7.0 5.8 121 SAGE CREEK BASIN 7850 1.3 1.7 76 3.5 -M * SOUTH BRUSH CREEK 8400 1.7 1.5 113 3.4 3.6 94 TOWER 10500 9.0 6.8 132 9.8 6.5 151 WEBBER SPRINGS 9200 3.3 3.6 92 4.8 4.9 98 WILLOW CREEK PASS 9540 4.5 2.1 214 3.9 2.9 134 ----- ----- Basin wide percent of average 107 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.5 3.5 71 4.2 3.9 108 CASPER MTN. 7900 1.2 2.8 43 2.1 3.6 58 DEADMAN HILL 10220 1.6 3.3 48 3.2 3.6 89 DEER PARK 9700 3.0 3.5 86 3.4 4.2 81 LAPRELE CREEK 8320 1.0 1.8 56 2.1 2.8 75 RENO HILL 8400 1.5 2.7 56 2.3 3.5 66 ROACH 9700 3.2 2.3 139 3.9 3.4 115 SAND LAKE 10080 3.0 5.4 56 4.5 4.7 96 SOUTH PASS 9040 2.5 2.8 89 3.3 3.6 92 WINDY PEAK 7840 1.5 1.2 125 2.4 2.5 96 ----- ----- Basin wide percent of average 72 88 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .8 1.0 80* 3.5 2.9 121 DIVIDE PEAK 8800 2.2 2.9 76 4.5 4.0 112 OLD BATTLE 10000 4.4 5.2 85 7.0 5.8 121 SANDSTONE RS 8150 1.0 1.1 91* 4.2 3.5 120 WHISKEY PARK 8950 2.9 3.3 88 5.0 4.8 104 ----- ----- Basin wide percent of average 84 115 UPPER GREEN RIVER BIG SANDY OPENING 9100 2.2 2.2 100 2.1 2.8 75 BLIND BULL SUM 8650 3.0 3.4 88 3.3 3.8 87 EAST RIM DIVIDE 7930 1.3 1.5 87 2.4 2.2 109 ELKHART PARK G.S. 9400 2.5 1.8 139 2.9 2.9 100 GROS VENTRE SUMMIT 8775 2.6 2.2 118 2.5 2.8 89 KENDALL R.S. 7740 2.3 1.5 153 2.7 2.5 108 LOOMIS PARK 8240 2.7 2.0 135 3.3 3.0 110 NEW FORK LAKE 8340 1.9 1.3 146 2.1 2.4 88 SNIDER BASIN 8250 1.6 1.7 94 2.3 2.7 85 SPRING CREEK DIVIDE 9000 3.4 3.2 106 3.8 4.4 86 TRIPLE PEAK 8500 2.9 2.9 100 4.4 3.8 116 ----- ----- Basin wide percent of average 111 95 LOWER GREEN RIVER HAMS FORK 7840 2.2 1.0 220* 3.3 2.2 150 HEWINTA 9500 2.0 1.3 154 3.4 3.4 100 HICKERSON PARK 9150 .0 .8 0* 2.2 2.3 96 HOLE-IN-ROCK 9150 1.2 .9 133 2.5 2.2 114 INDIAN CREEK 9425 3.8 3.2 119 3.7 4.3 86 KELLEY R.S. 8180 2.1 2.0 105 2.8 3.5 80 STEEL CREEK PARK 10100 1.3 2.5 52 2.7 3.4 79 ----- ----- Basin wide percent of average 108 97 UPPER BEAR RIVER BUG LAKE 7950 3.6 2.2 164* 4.3 3.6 119 HAYDEN FORK 9400 2.8 1.6 175* 4.7 3.8 124 KELLEY R.S. 8180 2.1 2.0 105 2.8 3.5 80 LILY LAKE 9050 2.2 1.6 138 3.8 3.7 103 MONTE CRISTO 8960 4.6 2.7 170* 5.5 4.5 122 SALT RIVER SUMMIT 7600 1.5 1.0 150* 2.7 3.1 87 TRIAL LAKE 9960 3.4 3.2 106 5.4 4.3 126 ----- ----- Basin wide percent of average 141* 110 ----------------------------------------------------------------------------- -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.