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 SUNDAY: NOVEMBER 29 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.7 3.7 100 5.2 6.2 84 COTTONWOOD CREEK 7600 3.5 4.0 88 6.7 6.6 102 GRANITE CREEK 6770 2.4 3.2 75 3.9 6.5 60 GRASSY LAKE 7265 6.5 6.5 100 8.4 10.0 84 GROS VENTRE SUMMIT 8775 4.0 3.5 114 4.6 4.5 102 LEWIS LAKE DIVIDE 7860 6.4 6.4 100 9.0 10.1 89 PHILLIPS BENCH 8200 6.0 5.3 113 6.6 7.8 85 SALT RIVER SUMMIT 7600 1.5 2.1 71 3.9 4.7 83 SNAKE RIVER STATION 6920 3.5 3.6 97 5.4 7.0 77 SPRING CREEK DIVIDE 9000 4.5 5.6 80 5.6 7.1 79 THUMB DIVIDE 7980 6.4 3.4 188 6.8 5.7 119 TOGWOTEE PASS 9580 6.9 5.8 119 7.1 7.5 95 TWO OCEAN PLATEAU 9360 9.5 7.5 127 8.6 8.5 101 WILLOW CREEK 8450 4.9 5.8 84 9.7 8.6 113 ----- ----- Basin wide percent of average 105 91 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 5.9 6.7 88 5.3 4.9 108 BLACK BEAR 7950 11.7 7.9 148 11.8 9.5 124 CANYON 7940 3.9 2.6 150 4.7 4.1 115 FISHER CREEK 9100 9.3 8.4 111 8.9 8.8 101 MADISON PLATEAU 7750 -M 5.0 * 8.8 6.6 133 NORTHEAST ENTRANCE 7350 1.9 1.8 106 3.5 3.6 97 PARKER PEAK 9400 5.7 6.8 84 -M 4.8 * SYLVAN LAKE 8420 7.3 6.4 114 9.1 6.2 147 THUMB DIVIDE 7980 6.4 3.4 188 6.8 5.7 119 TWO OCEAN PLATEAU 9360 9.5 7.5 127 8.6 8.5 101 WHISKEY CREEK 6800 5.1 3.6 142 6.7 5.4 124 WHITE MILL 8700 5.7 5.8 98 5.9 7.2 82 WOLVERINE 7650 3.2 2.2 145 3.5 3.9 90 ----- ----- Basin wide percent of average 120 112 WIND RIVER BURROUGHS CREEK 8750 3.4 3.5 97 3.9 4.9 80 COLD SPRINGS 9630 3.9 2.6 150 5.2 3.9 133 DEER PARK 9700 4.7 -M * 6.7 -M * HOBBS PARK 10100 6.3 4.8 131 6.8 4.2 162 LITTLE WARM 9620 3.9 3.1 126 4.7 4.3 109 SOUTH PASS 9040 4.2 5.1 82 5.9 5.1 116 ST. LAWRENCE ALT 8620 3.1 1.9 163 5.4 3.7 146 TOGWOTEE PASS 9580 6.9 5.8 119 7.1 7.5 95 TOWNSEND CREEK 8700 3.8 2.6 146 6.3 3.8 166 ----- ----- Basin wide percent of average 121 121 BIGHORN BASIN BALD MTN. 9375 5.0 5.8 86 5.2 4.9 106 BEAR TRAP MEADOW 7900 2.0 2.0 100 5.1 3.0 170 BLACKWATER 9780 9.4 5.6 168 8.3 5.4 154 BONE SPRINGS DIV 9350 4.0 4.9 82 4.6 4.3 107 EVENING STAR 9200 7.4 8.2 90 8.1 6.5 125 GRAVE SPRINGS 8550 2.0 2.7 74 5.2 3.5 149 KIRWIN 9550 4.2 3.2 131 4.7 3.6 131 MARQUETTE 8760 4.4 2.3 191 5.2 3.4 153 MIDDLE POWDER 7760 1.8 3.5 51 8.0 4.0 200 OWL CREEK 8975 2.7 1.1 245 3.5 1.9 184 POWDER RIVER PASS 9480 2.2 3.1 71 4.2 3.7 114 SHELL CREEK 9580 4.3 4.7 91 3.9 4.0 98 SYLVAN LAKE 8420 7.3 6.4 114 9.1 6.2 147 SYLVAN ROAD 8120 4.0 3.4 118 5.1 5.0 102 TIMBER CREEK 7950 2.7 1.1 245 4.1 2.4 171 YOUNTS PEAK 8350 5.2 5.2 100 4.7 4.8 98 ----- ----- Basin wide percent of average 109 134 SHOSHONE RIVER BLACKWATER 9780 9.4 5.6 168 8.3 5.4 154 EVENING STAR 9200 7.4 8.2 90 8.1 6.5 125 KIRWIN 9550 4.2 3.2 131 4.7 3.6 131 MARQUETTE 8760 4.4 2.3 191 5.2 3.4 153 SYLVAN LAKE 8420 7.3 6.4 114 9.1 6.2 147 SYLVAN ROAD 8120 4.0 3.4 118 5.1 5.0 102 YOUNTS PEAK 8350 5.2 5.2 100 4.7 4.8 98 ----- ----- Basin wide percent of average 122 130 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.0 2.0 100 5.1 3.0 170 BIG GOOSE 7990 1.7 -M * 4.7 -M * BONE SPRINGS DIV 9350 4.0 4.9 82 4.6 4.3 107 BURGESS JUNCTION 7880 1.9 3.5 54 4.3 3.7 116 CLOUD PEAK RESERVOIR 9860 3.8 3.2 119 5.5 4.2 131 DOME LAKE 8880 2.3 3.9 59 3.7 4.5 82 GRAVE SPRINGS 8550 2.0 2.7 74 5.2 3.5 149 HANSEN SAWMILL 8760 1.7 2.0 85 3.3 2.9 114 MIDDLE POWDER 7760 1.8 3.5 51 8.0 4.0 200 POWDER RIVER PASS 9480 2.2 3.1 71 4.2 3.7 114 SUCKER CREEK 8880 3.2 2.8 114 5.2 4.1 127 TIE CREEK 6870 .8 -M * 3.4 3.5 97 ----- ----- Basin wide percent of average 79 127 BELLE FOURCHE BLIND PARK 6890 1.1 3.3 33 7.4 3.1 239 NORTH RAPID CREEK 6130 .8 -M * 7.9 -M * WARREN PEAK 6520 1.5 3.3 45 7.6 2.6 292 ----- ----- Basin wide percent of average 39 263 UPPER N. PLATTE RIVER COLUMBINE 9400 3.2 4.8 67 6.4 6.0 107 DIVIDE PEAK 8800 4.1 5.5 75 10.0 6.5 154 ELK RIVER 8700 1.8 3.4 53 8.2 4.9 167 JOE WRIGHT 10120 4.4 6.4 69 9.0 7.5 120 NORTH FRENCH CREEK 10100 8.2 6.4 128 10.5 5.8 181 OLD BATTLE 10000 6.9 8.5 81 10.7 8.4 127 SOUTH BRUSH CREEK 8400 3.4 2.4 142 8.6 5.0 172 TOWER 10500 11.0 13.2 83 11.2 9.5 118 WEBBER SPRINGS 9200 3.7 6.7 55 7.9 8.1 98 WILLOW CREEK PASS 9540 3.9 3.1 126 5.4 3.8 142 ----- ----- Basin wide percent of average 84 134 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.0 6.7 60 6.3 5.1 124 CASPER MTN. 7900 3.0 4.5 67 8.6 5.0 172 DEADMAN HILL 10220 5.1 4.3 119 6.2 4.9 127 DEER PARK 9700 4.7 -M * 6.7 -M * LAPRELE CREEK 8320 .4 2.7 15 6.2 3.2 194 RENO HILL 8400 4.6 3.8 121 8.8 6.3 140 ROACH 9700 3.3 4.3 77 5.7 6.0 95 SAND LAKE 10080 9.3 8.6 108 10.7 5.8 184 SOUTH PASS 9040 4.2 5.1 82 5.9 5.1 116 WINDY PEAK 7840 .7 2.0 35 6.4 2.6 246 ----- ----- Basin wide percent of average 82 147 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.6 2.4 67 6.2 4.4 141 DIVIDE PEAK 8800 4.1 5.5 75 10.0 6.5 154 OLD BATTLE 10000 6.9 8.5 81 10.7 8.4 127 SANDSTONE RS 8150 1.4 3.0 47 7.2 5.0 144 WHISKEY PARK 8950 4.3 6.7 64 9.6 5.9 163 ----- ----- Basin wide percent of average 70 145 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.8 3.0 127 3.9 4.5 87 BLIND BULL SUM 8650 4.9 7.1 69 5.3 6.0 88 EAST RIM DIVIDE 7930 1.9 1.4 136* 2.9 4.2 69 ELKHART PARK G.S. 9400 3.1 3.0 103 4.0 4.5 89 GROS VENTRE SUMMIT 8775 4.0 3.5 114 4.6 4.5 102 KENDALL R.S. 7740 2.5 2.3 109 3.3 4.3 77 LOOMIS PARK 8240 2.5 3.1 81 3.8 5.3 72 NEW FORK LAKE 8340 2.0 2.0 100 2.9 4.0 72 SNIDER BASIN 8250 2.1 2.6 81 3.0 4.2 71 SPRING CREEK DIVIDE 9000 4.5 5.6 80 5.6 7.1 79 TRIPLE PEAK 8500 4.4 5.1 86 6.0 8.6 70 ----- ----- Basin wide percent of average 92 79 LOWER GREEN RIVER HAMS FORK 7840 1.2 1.6 75 2.8 3.7 76 HEWINTA 9500 1.4 2.2 64 4.2 4.3 98 HICKERSON PARK 9150 1.4 1.6 88 4.0 3.5 114 HOLE-IN-ROCK 9150 1.0 1.3 77 4.4 3.5 126 INDIAN CREEK 9425 4.7 5.8 81 4.9 7.0 70 KELLEY R.S. 8180 2.2 3.1 71 3.8 5.3 72 STEEL CREEK PARK 10100 3.6 4.8 75 5.5 4.5 122 ----- ----- Basin wide percent of average 76 93 UPPER BEAR RIVER BUG LAKE 7950 -M 4.7 * -M 6.3 * HAYDEN FORK 9400 2.6 3.5 74 5.5 5.3 104 KELLEY R.S. 8180 2.2 3.1 71 3.8 5.3 72 LILY LAKE 9050 3.6 3.4 106 5.8 4.8 121 MONTE CRISTO 8960 4.3 5.8 74 6.9 7.6 91 SALT RIVER SUMMIT 7600 1.5 2.1 71 3.9 4.7 83 TRIAL LAKE 9960 3.5 5.7 61 5.0 6.9 72 ----- ----- Basin wide percent of average 75 89 ----------------------------------------------------------------------------- -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.