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 FRIDAY: NOVEMBER 27 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.3 3.5 94 4.9 5.9 83 COTTONWOOD CREEK 7600 3.1 3.8 82 6.4 6.3 102 GRANITE CREEK 6770 1.9 3.1 61 3.5 6.2 56 GRASSY LAKE 7265 6.0 6.1 98 7.7 9.5 81 GROS VENTRE SUMMIT 8775 3.6 3.3 109 4.3 4.3 100 LEWIS LAKE DIVIDE 7860 5.6 6.1 92 8.3 9.6 86 PHILLIPS BENCH 8200 5.2 4.9 106 5.8 7.5 77 SALT RIVER SUMMIT 7600 1.4 1.9 74 3.7 4.5 82 SNAKE RIVER STATION 6920 3.3 3.4 97 5.3 6.6 80 SPRING CREEK DIVIDE 9000 3.8 5.4 70 5.0 6.8 74 THUMB DIVIDE 7980 5.6 3.2 175 6.0 5.5 109 TOGWOTEE PASS 9580 6.3 5.5 115 6.6 7.2 92 TWO OCEAN PLATEAU 9360 8.8 7.2 122 8.1 8.1 100 WILLOW CREEK 8450 4.7 5.4 87 9.4 8.2 115 ----- ----- Basin wide percent of average 100 88 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 5.7 6.4 89 5.0 4.7 106 BLACK BEAR 7950 10.2 7.6 134 10.6 9.0 118 CANYON 7940 3.6 2.5 144 4.3 4.0 108 FISHER CREEK 9100 9.0 7.9 114 8.6 8.4 102 MADISON PLATEAU 7750 -M 4.8 * 7.8 6.3 124 NORTHEAST ENTRANCE 7350 1.8 1.7 106 3.4 3.4 100 PARKER PEAK 9400 5.4 6.6 82 -M 4.6 * SYLVAN LAKE 8420 6.8 6.1 111 8.5 6.0 142 THUMB DIVIDE 7980 5.6 3.2 175 6.0 5.5 109 TWO OCEAN PLATEAU 9360 8.8 7.2 122 8.1 8.1 100 WHISKEY CREEK 6800 4.5 3.3 136 5.9 5.1 116 WHITE MILL 8700 5.5 5.5 100 5.6 6.9 81 WOLVERINE 7650 2.9 2.0 145 3.4 3.8 89 ----- ----- Basin wide percent of average 116 108 WIND RIVER BURROUGHS CREEK 8750 3.1 3.3 94 3.7 4.6 80 COLD SPRINGS 9630 3.4 2.5 136 4.8 3.7 130 DEER PARK 9700 4.4 -M * 6.4 -M * HOBBS PARK 10100 5.7 4.7 121 6.3 4.1 154 LITTLE WARM 9620 3.6 2.9 124 4.4 4.1 107 SOUTH PASS 9040 4.0 5.0 80 5.8 4.9 118 ST. LAWRENCE ALT 8620 2.7 1.8 150 5.1 3.5 146 TOGWOTEE PASS 9580 6.3 5.5 115 6.6 7.2 92 TOWNSEND CREEK 8700 3.6 2.5 144 6.2 3.6 172 ----- ----- Basin wide percent of average 115 120 BIGHORN BASIN BALD MTN. 9375 4.9 5.6 88 5.1 4.7 109 BEAR TRAP MEADOW 7900 2.0 1.9 105 5.1 2.9 176 BLACKWATER 9780 9.1 5.4 169 8.0 5.2 154 BONE SPRINGS DIV 9350 3.9 4.7 83 4.5 4.1 110 EVENING STAR 9200 7.0 8.0 88 7.6 6.3 121 GRAVE SPRINGS 8550 2.0 2.6 77 5.2 3.4 153 KIRWIN 9550 4.1 3.1 132 4.6 3.4 135 MARQUETTE 8760 4.4 2.2 200 5.3 3.3 161 MIDDLE POWDER 7760 1.8 3.3 55 8.0 3.8 211 OWL CREEK 8975 2.7 1.0 270 3.6 1.9 189 POWDER RIVER PASS 9480 2.2 3.0 73 4.2 3.5 120 SHELL CREEK 9580 4.3 4.5 96 3.9 3.8 103 SYLVAN LAKE 8420 6.8 6.1 111 8.5 6.0 142 SYLVAN ROAD 8120 3.6 3.2 112 4.8 4.8 100 TIMBER CREEK 7950 2.7 1.1 245 4.1 2.3 178 YOUNTS PEAK 8350 5.0 5.0 100 4.4 4.6 96 ----- ----- Basin wide percent of average 110 136 SHOSHONE RIVER BLACKWATER 9780 9.1 5.4 169 8.0 5.2 154 EVENING STAR 9200 7.0 8.0 88 7.6 6.3 121 KIRWIN 9550 4.1 3.1 132 4.6 3.4 135 MARQUETTE 8760 4.4 2.2 200 5.3 3.3 161 SYLVAN LAKE 8420 6.8 6.1 111 8.5 6.0 142 SYLVAN ROAD 8120 3.6 3.2 112 4.8 4.8 100 YOUNTS PEAK 8350 5.0 5.0 100 4.4 4.6 96 ----- ----- Basin wide percent of average 121 129 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.0 1.9 105 5.1 2.9 176 BIG GOOSE 7990 1.7 -M * 4.7 -M * BONE SPRINGS DIV 9350 3.9 4.7 83 4.5 4.1 110 BURGESS JUNCTION 7880 1.9 3.4 56 4.3 3.6 119 CLOUD PEAK RESERVOIR 9860 3.7 3.1 119 5.5 4.0 138 DOME LAKE 8880 2.3 3.7 62 3.7 4.4 84 GRAVE SPRINGS 8550 2.0 2.6 77 5.2 3.4 153 HANSEN SAWMILL 8760 1.8 1.9 95 3.3 2.8 118 MIDDLE POWDER 7760 1.8 3.3 55 8.0 3.8 211 POWDER RIVER PASS 9480 2.2 3.0 73 4.2 3.5 120 SUCKER CREEK 8880 3.1 2.6 119 5.2 3.9 133 TIE CREEK 6870 .8 -M * 3.3 3.4 97 ----- ----- Basin wide percent of average 82 131 BELLE FOURCHE BLIND PARK 6890 1.2 3.1 39 7.4 3.0 247 NORTH RAPID CREEK 6130 1.2 -M * 7.9 -M * WARREN PEAK 6520 1.6 3.1 52 7.6 2.5 304 ----- ----- Basin wide percent of average 45 273 UPPER N. PLATTE RIVER COLUMBINE 9400 3.1 4.5 69 6.2 5.7 109 DIVIDE PEAK 8800 4.0 5.2 77 9.8 6.2 158 ELK RIVER 8700 1.6 3.1 52 8.0 4.7 170 JOE WRIGHT 10120 4.3 6.2 69 9.0 7.2 125 NORTH FRENCH CREEK 10100 8.2 6.2 132 10.5 5.6 188 OLD BATTLE 10000 6.8 8.1 84 10.7 8.1 132 SOUTH BRUSH CREEK 8400 3.4 2.2 155 8.6 4.8 179 TOWER 10500 10.8 12.7 85 11.2 9.1 123 WEBBER SPRINGS 9200 3.6 6.4 56 7.8 7.8 100 WILLOW CREEK PASS 9540 3.8 3.0 127 5.0 3.6 139 ----- ----- Basin wide percent of average 86 138 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.1 6.4 64 6.3 4.9 129 CASPER MTN. 7900 2.9 4.2 69 8.6 4.8 179 DEADMAN HILL 10220 5.1 4.1 124 6.2 4.7 132 DEER PARK 9700 4.4 -M * 6.4 -M * LAPRELE CREEK 8320 .4 2.6 15 6.2 3.1 200 RENO HILL 8400 4.6 3.6 128 8.8 6.1 144 ROACH 9700 3.3 4.1 80 5.7 5.7 100 SAND LAKE 10080 9.3 8.2 113 10.7 5.5 195 SOUTH PASS 9040 4.0 5.0 80 5.8 4.9 118 WINDY PEAK 7840 .8 1.9 42 6.5 2.5 260 ----- ----- Basin wide percent of average 86 154 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.6 2.2 73 6.2 4.2 148 DIVIDE PEAK 8800 4.0 5.2 77 9.8 6.2 158 OLD BATTLE 10000 6.8 8.1 84 10.7 8.1 132 SANDSTONE RS 8150 1.3 2.8 46 7.2 4.7 153 WHISKEY PARK 8950 4.2 6.4 66 9.5 5.6 170 ----- ----- Basin wide percent of average 72 151 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.5 2.8 125 3.8 4.3 88 BLIND BULL SUM 8650 4.6 6.8 68 5.1 5.7 89 EAST RIM DIVIDE 7930 1.8 1.4 129* 2.8 4.0 70 ELKHART PARK G.S. 9400 3.2 2.8 114 3.9 4.3 91 GROS VENTRE SUMMIT 8775 3.6 3.3 109 4.3 4.3 100 KENDALL R.S. 7740 2.3 2.2 105 3.0 4.1 73 LOOMIS PARK 8240 2.3 2.9 79 3.6 5.0 72 NEW FORK LAKE 8340 2.0 1.8 111 2.6 3.8 68 SNIDER BASIN 8250 1.8 2.4 75 2.8 4.0 70 SPRING CREEK DIVIDE 9000 3.8 5.4 70 5.0 6.8 74 TRIPLE PEAK 8500 4.0 4.8 83 5.7 8.2 70 ----- ----- Basin wide percent of average 90 78 LOWER GREEN RIVER HAMS FORK 7840 1.1 1.4 79 2.8 3.6 78 HEWINTA 9500 1.2 2.1 57 4.2 4.1 102 HICKERSON PARK 9150 1.4 1.5 93 4.1 3.4 121 HOLE-IN-ROCK 9150 .9 1.2 75 4.5 3.4 132 INDIAN CREEK 9425 4.3 5.5 78 4.7 6.6 71 KELLEY R.S. 8180 2.1 2.9 72 3.6 5.0 72 STEEL CREEK PARK 10100 3.4 4.6 74 5.4 4.3 126 ----- ----- Basin wide percent of average 75 96 UPPER BEAR RIVER BUG LAKE 7950 1.3 4.4 30 3.9 6.1 64 HAYDEN FORK 9400 2.5 3.3 76 5.3 5.1 104 KELLEY R.S. 8180 2.1 2.9 72 3.6 5.0 72 LILY LAKE 9050 3.4 3.2 106 5.7 4.7 121 MONTE CRISTO 8960 3.5 5.4 65 6.2 7.3 85 SALT RIVER SUMMIT 7600 1.4 1.9 74 3.7 4.5 82 TRIAL LAKE 9960 3.3 5.5 60 4.9 6.6 74 ----- ----- Basin wide percent of average 66 85 ----------------------------------------------------------------------------- -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.