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 25 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.4 3.2 106 4.8 5.6 86 COTTONWOOD CREEK 7600 3.1 3.5 89 6.3 6.0 105 GRANITE CREEK 6770 2.1 2.9 72 3.5 5.9 59 GRASSY LAKE 7265 6.0 5.7 105 7.8 9.1 86 GROS VENTRE SUMMIT 8775 3.7 3.2 116 4.3 4.1 105 LEWIS LAKE DIVIDE 7860 5.6 5.7 98 8.2 9.2 89 PHILLIPS BENCH 8200 5.2 4.6 113 5.8 7.1 82 SALT RIVER SUMMIT 7600 1.4 1.8 78 3.6 4.3 84 SNAKE RIVER STATION 6920 3.3 3.2 103 5.3 6.3 84 SPRING CREEK DIVIDE 9000 3.6 5.1 71 5.0 6.4 78 THUMB DIVIDE 7980 5.6 3.0 187 5.9 5.2 113 TOGWOTEE PASS 9580 6.2 5.2 119 6.5 6.8 96 TWO OCEAN PLATEAU 9360 8.7 6.9 126 8.0 7.7 104 WILLOW CREEK 8450 4.7 5.1 92 9.4 7.8 121 ----- ----- Basin wide percent of average 106 92 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 5.5 6.2 89 4.7 4.5 104 BLACK BEAR 7950 10.1 7.2 140 10.3 8.6 120 CANYON 7940 3.6 2.3 157 4.3 3.8 113 FISHER CREEK 9100 8.7 7.5 116 8.2 8.0 102 MADISON PLATEAU 7750 -M 4.5 * 7.7 6.0 128 NORTHEAST ENTRANCE 7350 1.9 1.6 119 3.3 3.3 100 PARKER PEAK 9400 5.3 6.4 83 -M 4.4 * SYLVAN LAKE 8420 6.7 5.8 116 8.4 5.7 147 THUMB DIVIDE 7980 5.6 3.0 187 5.9 5.2 113 TWO OCEAN PLATEAU 9360 8.7 6.9 126 8.0 7.7 104 WHISKEY CREEK 6800 4.5 3.1 145 5.8 4.9 118 WHITE MILL 8700 5.4 5.2 104 5.5 6.5 85 WOLVERINE 7650 2.7 1.9 142 3.4 3.6 94 ----- ----- Basin wide percent of average 120 111 WIND RIVER BURROUGHS CREEK 8750 3.1 3.1 100 3.7 4.4 84 COLD SPRINGS 9630 3.4 2.4 142 4.8 3.6 133 DEER PARK 9700 4.4 -M * 6.4 -M * HOBBS PARK 10100 5.6 4.5 124 6.3 3.9 162 LITTLE WARM 9620 3.4 2.8 121 4.2 4.0 105 SOUTH PASS 9040 4.0 4.8 83 5.8 4.7 123 ST. LAWRENCE ALT 8620 2.8 1.7 165 5.1 3.4 150 TOGWOTEE PASS 9580 6.2 5.2 119 6.5 6.8 96 TOWNSEND CREEK 8700 3.5 2.4 146 6.0 3.5 171 ----- ----- Basin wide percent of average 119 124 BIGHORN BASIN BALD MTN. 9375 4.9 5.3 92 4.9 4.5 109 BEAR TRAP MEADOW 7900 2.0 1.8 111 5.0 2.8 179 BLACKWATER 9780 8.8 5.2 169 7.7 5.0 154 BONE SPRINGS DIV 9350 3.7 4.6 80 4.2 4.0 105 EVENING STAR 9200 6.7 7.7 87 7.4 6.0 123 GRAVE SPRINGS 8550 1.9 2.5 76 5.2 3.3 158 KIRWIN 9550 3.9 3.0 130 4.4 3.3 133 MARQUETTE 8760 4.1 2.1 195 4.9 3.2 153 MIDDLE POWDER 7760 1.7 3.2 53 7.8 3.7 211 OWL CREEK 8975 2.5 1.0 250 3.3 1.8 183 POWDER RIVER PASS 9480 2.1 2.8 75 4.1 3.4 121 SHELL CREEK 9580 4.2 4.4 95 3.9 3.7 105 SYLVAN LAKE 8420 6.7 5.8 116 8.4 5.7 147 SYLVAN ROAD 8120 3.7 3.1 119 4.8 4.6 104 TIMBER CREEK 7950 2.7 1.0 270 4.1 2.3 178 YOUNTS PEAK 8350 5.0 4.8 104 4.4 4.4 100 ----- ----- Basin wide percent of average 111 137 SHOSHONE RIVER BLACKWATER 9780 8.8 5.2 169 7.7 5.0 154 EVENING STAR 9200 6.7 7.7 87 7.4 6.0 123 KIRWIN 9550 3.9 3.0 130 4.4 3.3 133 MARQUETTE 8760 4.1 2.1 195 4.9 3.2 153 SYLVAN LAKE 8420 6.7 5.8 116 8.4 5.7 147 SYLVAN ROAD 8120 3.7 3.1 119 4.8 4.6 104 YOUNTS PEAK 8350 5.0 4.8 104 4.4 4.4 100 ----- ----- Basin wide percent of average 123 130 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.0 1.8 111 5.0 2.8 179 BIG GOOSE 7990 1.7 -M * 4.6 -M * BONE SPRINGS DIV 9350 3.7 4.6 80 4.2 4.0 105 BURGESS JUNCTION 7880 1.8 3.2 56 4.2 3.4 124 CLOUD PEAK RESERVOIR 9860 3.6 3.0 120 5.0 3.9 128 DOME LAKE 8880 2.1 3.6 58 3.8 4.2 90 GRAVE SPRINGS 8550 1.9 2.5 76 5.2 3.3 158 HANSEN SAWMILL 8760 1.6 1.8 89 3.3 2.7 122 MIDDLE POWDER 7760 1.7 3.2 53 7.8 3.7 211 POWDER RIVER PASS 9480 2.1 2.8 75 4.1 3.4 121 SUCKER CREEK 8880 2.9 2.5 116 4.6 3.8 121 TIE CREEK 6870 .8 -M * 3.3 3.3 100 ----- ----- Basin wide percent of average 81 131 BELLE FOURCHE BLIND PARK 6890 1.1 3.0 37 7.3 2.9 252 NORTH RAPID CREEK 6130 1.1 -M * 7.8 -M * WARREN PEAK 6520 1.3 3.0 43 7.6 2.4 317 ----- ----- Basin wide percent of average 40 281 UPPER N. PLATTE RIVER COLUMBINE 9400 3.1 4.3 72 6.0 5.5 109 DIVIDE PEAK 8800 3.9 5.0 78 9.5 6.0 158 ELK RIVER 8700 1.8 2.9 62 7.7 4.5 171 JOE WRIGHT 10120 4.1 6.0 68 9.0 6.9 130 NORTH FRENCH CREEK 10100 8.2 5.9 139 10.5 5.3 198 OLD BATTLE 10000 6.7 7.8 86 10.4 7.7 135 SOUTH BRUSH CREEK 8400 3.4 2.1 162 8.6 4.6 187 TOWER 10500 10.8 12.2 89 11.1 8.7 128 WEBBER SPRINGS 9200 3.5 6.0 58 7.7 7.4 104 WILLOW CREEK PASS 9540 3.6 2.8 129 5.1 3.5 146 ----- ----- Basin wide percent of average 89 142 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 3.9 6.0 65 6.3 4.7 134 CASPER MTN. 7900 2.9 4.0 72 8.5 4.7 181 DEADMAN HILL 10220 -M 3.9 * 6.1 4.6 133 DEER PARK 9700 4.4 -M * 6.4 -M * LAPRELE CREEK 8320 .4 2.4 17 6.1 2.9 210 RENO HILL 8400 4.6 3.5 131 8.6 5.8 148 ROACH 9700 3.3 3.9 85 5.7 5.5 104 SAND LAKE 10080 9.2 7.9 116 10.6 5.3 200 SOUTH PASS 9040 4.0 4.8 83 5.8 4.7 123 WINDY PEAK 7840 .7 1.8 39 6.2 2.4 258 ----- ----- Basin wide percent of average 85 157 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.5 2.1 71 6.2 4.0 155 DIVIDE PEAK 8800 3.9 5.0 78 9.5 6.0 158 OLD BATTLE 10000 6.7 7.8 86 10.4 7.7 135 SANDSTONE RS 8150 1.2 2.7 44 7.1 4.5 158 WHISKEY PARK 8950 4.3 6.1 70 9.4 5.3 177 ----- ----- Basin wide percent of average 74 155 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.5 2.7 130 3.8 4.1 93 BLIND BULL SUM 8650 4.5 6.4 70 5.0 5.4 93 EAST RIM DIVIDE 7930 1.8 1.4 129* 2.8 3.8 74 ELKHART PARK G.S. 9400 3.1 2.7 115 3.8 4.1 93 GROS VENTRE SUMMIT 8775 3.7 3.2 116 4.3 4.1 105 KENDALL R.S. 7740 2.3 2.0 115 3.1 3.9 79 LOOMIS PARK 8240 2.4 2.7 89 3.7 4.8 77 NEW FORK LAKE 8340 2.0 1.7 118 2.5 3.6 69 SNIDER BASIN 8250 1.7 2.2 77 2.8 3.8 74 SPRING CREEK DIVIDE 9000 3.6 5.1 71 5.0 6.4 78 TRIPLE PEAK 8500 4.1 4.5 91 5.7 7.8 73 ----- ----- Basin wide percent of average 95 82 LOWER GREEN RIVER HAMS FORK 7840 1.0 1.3 77 2.8 3.4 82 HEWINTA 9500 1.0 1.9 53 4.2 4.0 105 HICKERSON PARK 9150 1.4 1.5 93 4.0 3.3 121 HOLE-IN-ROCK 9150 .8 1.2 67 4.3 3.3 130 INDIAN CREEK 9425 4.2 5.2 81 4.3 6.3 68 KELLEY R.S. 8180 2.0 2.7 74 3.6 4.8 75 STEEL CREEK PARK 10100 3.4 4.3 79 5.3 4.2 126 ----- ----- Basin wide percent of average 76 97 UPPER BEAR RIVER BUG LAKE 7950 1.3 4.0 33 3.8 5.9 64 HAYDEN FORK 9400 2.6 3.1 84 5.3 4.9 108 KELLEY R.S. 8180 2.0 2.7 74 3.6 4.8 75 LILY LAKE 9050 3.4 3.0 113 5.8 4.5 129 MONTE CRISTO 8960 3.3 5.0 66 6.2 7.0 89 SALT RIVER SUMMIT 7600 1.4 1.8 78 3.6 4.3 84 TRIAL LAKE 9960 3.3 5.2 63 5.0 6.3 79 ----- ----- Basin wide percent of average 70 88 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. 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.