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: DECEMBER 1 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 4.6 3.9 118 6.2 6.5 95 COTTONWOOD CREEK 7600 3.8 4.2 90 7.1 6.9 103 GRANITE CREEK 6770 3.3 3.4 97 4.9 6.8 72 GRASSY LAKE 7265 7.6 6.9 110 9.4 10.5 90 GROS VENTRE SUMMIT 8775 4.5 3.6 125 5.1 4.7 109 LEWIS LAKE DIVIDE 7860 7.8 6.8 115 10.4 10.6 98 PHILLIPS BENCH 8200 6.7 5.6 120 7.4 8.2 90 SALT RIVER SUMMIT 7600 1.9 2.2 86 4.3 4.9 88 SNAKE RIVER STATION 6920 4.3 3.8 113 6.5 7.3 89 SPRING CREEK DIVIDE 9000 5.1 5.9 86 6.3 7.5 84 THUMB DIVIDE 7980 7.0 3.6 194 7.4 6.0 123 TOGWOTEE PASS 9580 7.4 6.0 123 7.7 7.9 97 TWO OCEAN PLATEAU 9360 10.6 7.8 136 9.8 8.9 110 WILLOW CREEK 8450 6.0 6.1 98 10.8 9.0 120 ----- ----- Basin wide percent of average 115 98 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 6.6 6.9 96 5.9 5.1 116 BLACK BEAR 7950 12.9 8.3 155 13.2 9.9 133 CANYON 7940 4.1 2.7 152 4.9 4.3 114 FISHER CREEK 9100 10.5 8.8 119 9.9 9.2 108 MADISON PLATEAU 7750 -M 5.3 * 10.0 6.9 145 NORTHEAST ENTRANCE 7350 1.9 1.9 100 3.6 3.7 97 PARKER PEAK 9400 6.2 7.0 89 -M 5.0 * SYLVAN LAKE 8420 7.6 6.7 113 9.4 6.5 145 THUMB DIVIDE 7980 7.0 3.6 194 7.4 6.0 123 TWO OCEAN PLATEAU 9360 10.6 7.8 136 9.8 8.9 110 WHISKEY CREEK 6800 5.9 3.8 155 7.5 5.6 134 WHITE MILL 8700 6.5 6.1 107 6.6 7.5 88 WOLVERINE 7650 3.5 2.3 152 3.8 4.1 93 ----- ----- Basin wide percent of average 126 118 WIND RIVER BURROUGHS CREEK 8750 3.8 3.7 103 4.3 5.1 84 COLD SPRINGS 9630 4.0 2.7 148 5.3 4.0 132 DEER PARK 9700 4.7 -M * 6.8 -M * HOBBS PARK 10100 6.5 5.0 130 6.9 4.4 157 LITTLE WARM 9620 4.2 3.2 131 5.0 4.5 111 SOUTH PASS 9040 4.3 5.3 81 6.1 5.3 115 ST. LAWRENCE ALT 8620 3.2 2.0 160 5.6 3.8 147 TOGWOTEE PASS 9580 7.4 6.0 123 7.7 7.9 97 TOWNSEND CREEK 8700 3.8 2.7 141 6.4 3.9 164 ----- ----- Basin wide percent of average 122 122 BIGHORN BASIN BALD MTN. 9375 5.1 6.0 85 5.3 5.1 104 BEAR TRAP MEADOW 7900 2.0 2.1 95 5.1 3.1 165 BLACKWATER 9780 10.2 5.8 176 8.9 5.6 159 BONE SPRINGS DIV 9350 4.1 5.0 82 4.6 4.4 105 EVENING STAR 9200 8.3 8.5 98 8.8 6.8 129 GRAVE SPRINGS 8550 2.0 2.8 71 5.2 3.6 144 KIRWIN 9550 4.5 3.3 136 5.1 3.7 138 MARQUETTE 8760 4.5 2.4 188 5.3 3.5 151 MIDDLE POWDER 7760 1.8 3.6 50 8.0 4.1 195 OWL CREEK 8975 2.7 1.1 245 3.6 2.0 180 POWDER RIVER PASS 9480 2.2 3.2 69 4.2 3.8 111 SHELL CREEK 9580 4.3 4.8 90 3.9 4.1 95 SYLVAN LAKE 8420 7.6 6.7 113 9.4 6.5 145 SYLVAN ROAD 8120 4.3 3.5 123 5.6 5.2 108 TIMBER CREEK 7950 2.7 1.2 225 4.2 2.5 168 YOUNTS PEAK 8350 5.8 5.4 107 5.3 5.0 106 ----- ----- Basin wide percent of average 110 134 SHOSHONE RIVER BLACKWATER 9780 10.2 5.8 176 8.9 5.6 159 EVENING STAR 9200 8.3 8.5 98 8.8 6.8 129 KIRWIN 9550 4.5 3.3 136 5.1 3.7 138 MARQUETTE 8760 4.5 2.4 188 5.3 3.5 151 SYLVAN LAKE 8420 7.6 6.7 113 9.4 6.5 145 SYLVAN ROAD 8120 4.3 3.5 123 5.6 5.2 108 YOUNTS PEAK 8350 5.8 5.4 107 5.3 5.0 106 ----- ----- Basin wide percent of average 127 133 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.0 2.1 95 5.1 3.1 165 BIG GOOSE 7990 1.7 -M * 4.7 -M * BONE SPRINGS DIV 9350 4.1 5.0 82 4.6 4.4 105 BURGESS JUNCTION 7880 2.0 3.6 56 4.3 3.8 113 CLOUD PEAK RESERVOIR 9860 3.9 3.4 115 5.6 4.3 130 DOME LAKE 8880 2.3 4.0 58 3.7 4.7 79 GRAVE SPRINGS 8550 2.0 2.8 71 5.2 3.6 144 HANSEN SAWMILL 8760 1.8 2.1 86 3.3 3.0 110 MIDDLE POWDER 7760 1.8 3.6 50 8.0 4.1 195 POWDER RIVER PASS 9480 2.2 3.2 69 4.2 3.8 111 SUCKER CREEK 8880 3.2 2.9 110 5.2 4.2 124 TIE CREEK 6870 .7 -M * 3.4 3.6 94 ----- ----- Basin wide percent of average 77 123 BELLE FOURCHE BLIND PARK 6890 1.1 3.4 32 7.4 3.2 231 NORTH RAPID CREEK 6130 .9 -M * 7.9 -M * WARREN PEAK 6520 1.6 3.4 47 7.6 2.7 281 ----- ----- Basin wide percent of average 40 254 UPPER N. PLATTE RIVER COLUMBINE 9400 3.3 5.0 66 6.2 6.2 100 DIVIDE PEAK 8800 5.1 5.7 89 11.0 6.7 164 ELK RIVER 8700 1.9 3.6 53 8.0 5.1 157 JOE WRIGHT 10120 4.1 6.6 62 9.1 7.8 117 NORTH FRENCH CREEK 10100 8.6 6.7 128 10.9 6.1 179 OLD BATTLE 10000 8.1 8.8 92 12.0 8.8 136 SOUTH BRUSH CREEK 8400 3.5 2.5 140 8.7 5.2 167 TOWER 10500 11.7 13.7 85 11.6 9.9 117 WEBBER SPRINGS 9200 4.4 7.0 63 8.7 8.5 102 WILLOW CREEK PASS 9540 3.6 3.3 109 5.0 3.9 128 ----- ----- Basin wide percent of average 86 134 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.2 7.0 60 6.5 5.3 123 CASPER MTN. 7900 2.8 4.7 60 8.5 5.2 163 DEADMAN HILL 10220 5.4 4.5 120 6.2 5.1 122 DEER PARK 9700 4.7 -M * 6.8 -M * LAPRELE CREEK 8320 .4 2.8 14 6.1 3.3 185 RENO HILL 8400 4.5 3.9 115 8.7 6.6 132 ROACH 9700 3.3 4.5 73 5.8 6.2 94 SAND LAKE 10080 9.7 8.9 109 10.9 6.0 182 SOUTH PASS 9040 4.3 5.3 81 6.1 5.3 115 WINDY PEAK 7840 .7 2.1 33 6.4 2.7 237 ----- ----- Basin wide percent of average 81 143 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.3 2.5 92 6.9 4.6 150 DIVIDE PEAK 8800 5.1 5.7 89 11.0 6.7 164 OLD BATTLE 10000 8.1 8.8 92 12.0 8.8 136 SANDSTONE RS 8150 2.0 3.1 65 8.0 5.2 154 WHISKEY PARK 8950 4.6 7.0 66 9.8 6.2 158 ----- ----- Basin wide percent of average 82 151 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.8 3.1 123 4.0 4.7 85 BLIND BULL SUM 8650 6.0 7.4 81 6.3 6.3 100 EAST RIM DIVIDE 7930 2.3 1.4 164* 3.4 4.4 77 ELKHART PARK G.S. 9400 3.3 3.1 106 4.2 4.7 89 GROS VENTRE SUMMIT 8775 4.5 3.6 125 5.1 4.7 109 KENDALL R.S. 7740 3.0 2.5 120 3.8 4.5 84 LOOMIS PARK 8240 3.2 3.3 97 4.5 5.5 82 NEW FORK LAKE 8340 2.2 2.1 105 3.0 4.2 71 SNIDER BASIN 8250 2.4 2.8 86 3.3 4.4 75 SPRING CREEK DIVIDE 9000 5.1 5.9 86 6.3 7.5 84 TRIPLE PEAK 8500 5.1 5.4 94 6.8 9.0 76 ----- ----- Basin wide percent of average 101 85 LOWER GREEN RIVER HAMS FORK 7840 1.3 1.7 76 2.9 3.9 74 HEWINTA 9500 1.2 2.4 50 4.2 4.4 95 HICKERSON PARK 9150 1.4 1.6 88 4.1 3.6 114 HOLE-IN-ROCK 9150 1.0 1.4 71 4.6 3.6 128 INDIAN CREEK 9425 5.1 6.1 84 5.2 7.3 71 KELLEY R.S. 8180 2.4 3.3 73 4.0 5.5 73 STEEL CREEK PARK 10100 3.8 5.0 76 5.5 4.6 120 ----- ----- Basin wide percent of average 75 93 UPPER BEAR RIVER BUG LAKE 7950 2.3 5.0 46 4.5 6.5 69 HAYDEN FORK 9400 2.6 3.7 70 5.7 5.5 104 KELLEY R.S. 8180 2.4 3.3 73 4.0 5.5 73 LILY LAKE 9050 3.7 3.6 103 5.9 5.0 118 MONTE CRISTO 8960 4.5 6.2 73 7.2 7.9 91 SALT RIVER SUMMIT 7600 1.9 2.2 86 4.3 4.9 88 TRIAL LAKE 9960 3.6 6.0 60 5.3 7.2 74 ----- ----- Basin wide percent of average 70 87 ----------------------------------------------------------------------------- -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.