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 WEDNESDAY: NOVEMBER 13 , 2002 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.2 1.8 178 3.6 3.7 97 COTTONWOOD CREEK 7600 3.5 2.2 159* 4.7 5.1 92 GRANITE CREEK 6770 2.9 1.5 193* 3.8 3.2 119 GRASSY LAKE 7265 4.1 3.6 114* 5.2 5.9 88 GROS VENTRE SUMMIT 8775 2.7 2.3 117 2.6 2.9 90 LEWIS LAKE DIVIDE 7860 3.5 3.4 103* 4.9 5.9 83 PHILLIPS BENCH 8200 4.1 3.1 132 5.0 4.5 111 SALT RIVER SUMMIT 7600 1.6 1.1 145* 2.7 3.2 84 SNAKE RIVER STATION 6920 2.5 1.7 147* 3.7 3.9 95 SPRING CREEK DIVIDE 9000 3.5 3.3 106 3.9 4.5 87 THUMB DIVIDE 7980 2.5 1.9 132 3.6 3.4 106 TOGWOTEE PASS 9580 4.3 4.3 100 4.3 4.7 91 TWO OCEAN PLATEAU 9360 6.9 5.1 135 4.4 5.2 85 WILLOW CREEK 8450 3.2 4.0 80 5.3 6.0 88 ----- ----- Basin wide percent of average 123 93 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.3 4.4 98 3.2 3.7 86 BLACK BEAR 8170 4.4 5.1 86 4.6 6.4 72 CANYON 8090 1.6 1.6 100 2.4 3.1 77 FISHER CREEK 9100 3.7 4.9 76 3.8 6.0 63 MADISON PLATEAU 7750 2.4 3.1 77 3.2 4.4 73 NORTHEAST ENTRANCE 7350 .7 1.0 70* 1.8 2.6 69 PARKER PEAK 9400 4.5 4.1 110 4.0 3.6 111 SYLVAN LAKE 8420 3.1 3.6 86 4.8 4.5 107 THUMB DIVIDE 7980 2.5 1.9 132 3.6 3.4 106 TWO OCEAN PLATEAU 9360 6.9 5.1 135 4.4 5.2 85 WHISKEY CREEK 6800 1.6 1.7 94* 2.5 3.7 68 WHITE MILL 8700 3.4 3.6 94 3.1 4.8 65 WOLVERINE 7650 .7 1.4 50 2.9 2.9 100 ----- ----- Basin wide percent of average 96 82 WIND RIVER BURROUGHS CREEK 8750 3.8 2.0 190 4.7 3.0 157 COLD SPRINGS 9630 1.9 2.0 95 3.2 2.9 110 DEER PARK 9700 3.2 3.6 89 3.6 4.4 82 HOBBS PARK 10100 3.8 3.5 109 4.0 3.2 125 LITTLE WARM 9370 2.2 2.0 110 2.7 2.9 93 SOUTH PASS 9040 2.8 2.9 97 3.5 3.7 95 ST. LAWRENCE ALT 8620 1.8 1.7 106 3.3 2.5 132 TOGWOTEE PASS 9580 4.3 4.3 100 4.3 4.7 91 TOWNSEND CREEK 8700 2.0 1.9 105 3.5 3.1 113 ----- ----- Basin wide percent of average 108 108 BIGHORN BASIN BALD MTN. 9380 3.6 4.3 84 3.3 3.6 92 BEAR TRAP MEADOW 8200 .9 1.0 90 1.7 2.4 71 BLACKWATER 9780 4.5 4.8 94 4.0 4.6 87 BONE SPRINGS DIV 9350 3.4 3.9 87 3.1 3.5 89 EVENING STAR 9200 3.2 4.9 65 4.0 5.0 80 GRAVE SPRINGS 8550 .7 1.9 37 1.8 2.8 64 KIRWIN 9550 2.6 2.8 93 3.1 2.8 111 MARQUETTE 8760 2.5 2.7 93 2.0 3.1 65 MIDDLE POWDER 7760 1.4 2.3 61 2.0 3.6 56 OWL CREEK 8975 2.1 1.4 150 2.1 1.6 131 POWDER RIVER PASS 9480 2.1 2.2 95 2.8 2.8 100 SHELL CREEK 9580 3.4 3.7 92 3.1 3.1 100 SYLVAN LAKE 8420 3.1 3.6 86 4.8 4.5 107 SYLVAN ROAD 7120 1.9 1.5 127 3.6 4.0 90 TIMBER CREEK 7950 1.6 1.8 89 2.6 2.2 118 YOUNTS PEAK 8350 3.2 2.6 123 3.2 3.2 100 ----- ----- Basin wide percent of average 89 89 SHOSHONE RIVER BLACKWATER 9780 4.5 4.8 94 4.0 4.6 87 EVENING STAR 9200 3.2 4.9 65 4.0 5.0 80 KIRWIN 9550 2.6 2.8 93 3.1 2.8 111 MARQUETTE 8760 2.5 2.7 93 2.0 3.1 65 SYLVAN LAKE 8420 3.1 3.6 86 4.8 4.5 107 SYLVAN ROAD 7120 1.9 1.5 127 3.6 4.0 90 YOUNTS PEAK 8350 3.2 2.6 123 3.2 3.2 100 ----- ----- Basin wide percent of average 92 91 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 1.0 90 1.7 2.4 71 BIG GOOSE 7990 1.9 1.4 136 2.8 2.5 112 BONE SPRINGS DIV 9350 3.4 3.9 87 3.1 3.5 89 BURGESS JUNCTION 7880 1.9 2.5 76 2.6 3.1 84 CLOUD PEAK RESERVOIR 9860 2.3 2.5 92 2.8 3.6 78 DOME LAKE 8880 2.9 3.0 97 3.1 3.5 89 GRAVE SPRINGS 8550 .7 1.9 37 1.8 2.8 64 HANSEN SAWMILL 8360 1.7 1.2 142 2.4 2.4 100 MIDDLE POWDER 7760 1.4 2.3 61 2.0 3.6 56 POWDER RIVER PASS 9480 2.1 2.2 95 2.8 2.8 100 SUCKER CREEK 8880 2.0 2.3 87 3.3 3.3 100 TIE CREEK 6870 .7 1.2 58 2.6 3.0 87 ----- ----- Basin wide percent of average 86 85 BELLE FOURCHE BLIND PARK 6890 1.2 1.4 86 2.3 3.4 68 COLE CANYON 5910 .5 -M * 1.5 -M * NORTH RAPID CREEK 6130 1.0 .9 111 2.0 3.1 65 ----- ----- Basin wide percent of average 96 66 UPPER N. PLATTE RIVER COLUMBINE 9400 3.2 2.4 133* 5.1 4.1 124 DIVIDE PEAK 8800 2.3 3.0 77 4.6 4.2 110 ELK RIVER 8700 2.1 1.5 140* 4.2 3.5 120 JOE WRIGHT 10120 3.8 4.2 90 5.6 5.2 108 NORTH FRENCH CREEK 10100 3.7 5.0 74 5.3 5.1 104 OLD BATTLE 10000 4.4 5.3 83 7.1 5.9 120 SAGE CREEK BASIN 7850 1.5 1.8 83 3.5 -M * SOUTH BRUSH CREEK 8400 1.9 1.6 119 3.6 3.7 97 TOWER 10500 9.0 7.1 127 9.9 6.7 148 WEBBER SPRINGS 9200 3.4 3.7 92 4.9 5.0 98 WILLOW CREEK PASS 9540 4.6 2.2 209 4.1 3.0 137 ----- ----- Basin wide percent of average 106 117 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.7 3.6 75 -M 4.0 * CASPER MTN. 7900 1.4 2.9 48 2.1 3.6 58 DEADMAN HILL 10220 2.0 3.4 59 3.3 3.7 89 DEER PARK 9700 3.2 3.6 89 3.6 4.4 82 LAPRELE CREEK 8320 1.3 1.9 68 2.4 2.9 83 RENO HILL 8400 1.7 2.7 63 2.7 3.6 75 ROACH 9700 3.4 2.4 142 4.0 3.5 114 SAND LAKE 10080 3.3 5.6 59 4.6 4.8 96 SOUTH PASS 9040 2.8 2.9 97 3.5 3.7 95 WINDY PEAK 7840 1.6 1.3 123 2.4 2.6 92 ----- ----- Basin wide percent of average 77 87 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .7 1.0 70* 3.8 3.0 127 DIVIDE PEAK 8800 2.3 3.0 77 4.6 4.2 110 OLD BATTLE 10000 4.4 5.3 83 7.1 5.9 120 SANDSTONE RS 8150 1.1 1.2 92* 4.2 3.6 117 WHISKEY PARK 8950 3.0 3.4 88 5.1 4.9 104 ----- ----- Basin wide percent of average 83 115 UPPER GREEN RIVER BIG SANDY OPENING 9100 2.3 2.2 105 2.2 2.9 76 BLIND BULL SUM 8650 3.1 3.6 86 3.4 3.9 87 EAST RIM DIVIDE 7930 1.4 1.6 87 2.4 2.2 109 ELKHART PARK G.S. 9400 2.7 1.8 150 2.9 3.0 97 GROS VENTRE SUMMIT 8775 2.7 2.3 117 2.6 2.9 90 KENDALL R.S. 7740 2.3 1.6 144 2.8 2.6 108 LOOMIS PARK 8240 2.7 2.1 129 3.3 3.1 106 NEW FORK LAKE 8340 1.9 1.4 136 2.3 2.5 92 SNIDER BASIN 8250 1.7 1.7 100 2.4 2.8 86 SPRING CREEK DIVIDE 9000 3.5 3.3 106 3.9 4.5 87 TRIPLE PEAK 8500 2.9 3.0 97 4.5 4.0 112 ----- ----- Basin wide percent of average 111 95 LOWER GREEN RIVER HAMS FORK 7840 2.4 1.1 218* 3.3 2.3 143 HEWINTA 9500 2.1 1.3 162 3.3 3.5 94 HICKERSON PARK 9150 .6 .8 75 2.7 2.4 113 HOLE-IN-ROCK 9150 1.3 .9 144 2.9 2.2 132 INDIAN CREEK 9425 3.9 3.4 115 3.8 4.4 86 KELLEY R.S. 8180 2.1 2.1 100 2.8 3.6 78 STEEL CREEK PARK 10100 1.5 2.6 58 3.1 3.5 89 ----- ----- Basin wide percent of average 114 100 UPPER BEAR RIVER BUG LAKE 7950 3.6 2.2 164 4.3 3.7 116 HAYDEN FORK 9400 3.0 1.7 176 5.2 3.9 133 KELLEY R.S. 8180 2.1 2.1 100 2.8 3.6 78 LILY LAKE 9050 2.1 1.7 124 4.2 3.8 111 MONTE CRISTO 8960 4.6 2.8 164* 5.6 4.7 119 SALT RIVER SUMMIT 7600 1.6 1.1 145* 2.7 3.2 84 TRIAL LAKE 9960 3.3 3.3 100 5.5 4.4 125 ----- ----- Basin wide percent of average 136 111 ----------------------------------------------------------------------------- -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.