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 SATURDAY: NOVEMBER 28 , 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 3.6 92 5.0 6.1 82 COTTONWOOD CREEK 7600 3.2 3.9 82 6.4 6.4 100 GRANITE CREEK 6770 1.9 3.1 61 3.5 6.4 55 GRASSY LAKE 7265 6.0 6.3 95 7.8 9.8 80 GROS VENTRE SUMMIT 8775 3.6 3.4 106 4.3 4.4 98 LEWIS LAKE DIVIDE 7860 5.6 6.3 89 8.4 9.9 85 PHILLIPS BENCH 8200 5.2 5.1 102 5.8 7.6 76 SALT RIVER SUMMIT 7600 1.4 2.0 70 3.8 4.6 83 SNAKE RIVER STATION 6920 3.2 3.5 91 5.3 6.8 78 SPRING CREEK DIVIDE 9000 3.8 5.5 69 5.0 7.0 71 THUMB DIVIDE 7980 5.6 3.3 170 6.0 5.6 107 TOGWOTEE PASS 9580 6.3 5.6 113 6.6 7.4 89 TWO OCEAN PLATEAU 9360 8.9 7.4 120 8.2 8.3 99 WILLOW CREEK 8450 4.7 5.6 84 9.4 8.4 112 ----- ----- Basin wide percent of average 97 87 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 5.7 6.5 88 5.1 4.8 106 BLACK BEAR 7950 10.3 7.7 134 10.7 9.3 115 CANYON 7940 3.6 2.5 144 4.3 4.1 105 FISHER CREEK 9100 9.0 8.1 111 8.6 8.6 100 MADISON PLATEAU 7750 -M 4.9 * 7.9 6.5 122 NORTHEAST ENTRANCE 7350 1.9 1.7 112 3.4 3.5 97 PARKER PEAK 9400 5.4 6.7 81 -M 4.7 * SYLVAN LAKE 8420 6.8 6.3 108 8.5 6.1 139 THUMB DIVIDE 7980 5.6 3.3 170 6.0 5.6 107 TWO OCEAN PLATEAU 9360 8.9 7.4 120 8.2 8.3 99 WHISKEY CREEK 6800 4.4 3.4 129 5.9 5.3 111 WHITE MILL 8700 5.5 5.7 96 5.7 7.0 81 WOLVERINE 7650 2.9 2.1 138 3.4 3.9 87 ----- ----- Basin wide percent of average 114 106 WIND RIVER BURROUGHS CREEK 8750 3.2 3.4 94 3.7 4.8 77 COLD SPRINGS 9630 3.5 2.5 140 4.9 3.8 129 DEER PARK 9700 4.3 -M * 6.4 -M * HOBBS PARK 10100 5.8 4.8 121 6.2 4.2 148 LITTLE WARM 9620 3.6 3.0 120 4.5 4.2 107 SOUTH PASS 9040 4.0 5.0 80 5.8 5.0 116 ST. LAWRENCE ALT 8620 2.7 1.9 142 5.1 3.6 142 TOGWOTEE PASS 9580 6.3 5.6 113 6.6 7.4 89 TOWNSEND CREEK 8700 3.6 2.5 144 6.2 3.7 168 ----- ----- Basin wide percent of average 114 117 BIGHORN BASIN BALD MTN. 9375 4.9 5.7 86 5.2 4.8 108 BEAR TRAP MEADOW 7900 2.0 2.0 100 5.1 3.0 170 BLACKWATER 9780 9.1 5.5 165 8.0 5.3 151 BONE SPRINGS DIV 9350 3.9 4.8 81 4.5 4.2 107 EVENING STAR 9200 7.0 8.1 86 7.6 6.4 119 GRAVE SPRINGS 8550 2.0 2.6 77 5.2 3.4 153 KIRWIN 9550 4.1 3.1 132 4.6 3.5 131 MARQUETTE 8760 4.4 2.2 200 5.2 3.3 158 MIDDLE POWDER 7760 1.8 3.4 53 8.0 3.9 205 OWL CREEK 8975 2.7 1.0 270 3.6 1.9 189 POWDER RIVER PASS 9480 2.2 3.0 73 4.2 3.6 117 SHELL CREEK 9580 4.3 4.6 93 3.9 3.9 100 SYLVAN LAKE 8420 6.8 6.3 108 8.5 6.1 139 SYLVAN ROAD 8120 3.5 3.3 106 4.8 4.9 98 TIMBER CREEK 7950 2.7 1.1 245 4.1 2.4 171 YOUNTS PEAK 8350 5.1 5.1 100 4.5 4.7 96 ----- ----- Basin wide percent of average 108 133 SHOSHONE RIVER BLACKWATER 9780 9.1 5.5 165 8.0 5.3 151 EVENING STAR 9200 7.0 8.1 86 7.6 6.4 119 KIRWIN 9550 4.1 3.1 132 4.6 3.5 131 MARQUETTE 8760 4.4 2.2 200 5.2 3.3 158 SYLVAN LAKE 8420 6.8 6.3 108 8.5 6.1 139 SYLVAN ROAD 8120 3.5 3.3 106 4.8 4.9 98 YOUNTS PEAK 8350 5.1 5.1 100 4.5 4.7 96 ----- ----- Basin wide percent of average 119 126 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 3.9 4.8 81 4.5 4.2 107 BURGESS JUNCTION 7880 1.9 3.4 56 4.3 3.6 119 CLOUD PEAK RESERVOIR 9860 3.7 3.2 116 5.5 4.1 134 DOME LAKE 8880 2.3 3.8 61 3.7 4.5 82 GRAVE SPRINGS 8550 2.0 2.6 77 5.2 3.4 153 HANSEN SAWMILL 8760 1.8 2.0 90 3.3 2.9 114 MIDDLE POWDER 7760 1.8 3.4 53 8.0 3.9 205 POWDER RIVER PASS 9480 2.2 3.0 73 4.2 3.6 117 SUCKER CREEK 8880 3.1 2.7 115 5.1 4.0 128 TIE CREEK 6870 .7 -M * 3.3 3.4 97 ----- ----- Basin wide percent of average 80 129 BELLE FOURCHE BLIND PARK 6890 1.2 3.2 38 7.4 3.1 239 NORTH RAPID CREEK 6130 1.0 -M * 7.8 -M * WARREN PEAK 6520 1.5 3.2 47 7.6 2.6 292 ----- ----- Basin wide percent of average 42 263 UPPER N. PLATTE RIVER COLUMBINE 9400 3.1 4.6 67 6.2 5.8 107 DIVIDE PEAK 8800 4.0 5.3 75 9.8 6.3 156 ELK RIVER 8700 1.7 3.2 53 8.0 4.8 167 JOE WRIGHT 10120 4.4 6.3 70 9.1 7.4 123 NORTH FRENCH CREEK 10100 8.2 6.3 130 10.5 5.7 184 OLD BATTLE 10000 6.8 8.3 82 10.7 8.2 130 SOUTH BRUSH CREEK 8400 3.4 2.3 148 8.6 4.9 176 TOWER 10500 10.9 13.0 84 11.2 9.3 120 WEBBER SPRINGS 9200 3.6 6.5 55 7.8 8.0 98 WILLOW CREEK PASS 9540 3.8 3.1 123 5.1 3.7 138 ----- ----- Basin wide percent of average 85 136 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.0 6.5 62 6.3 5.0 126 CASPER MTN. 7900 3.0 4.3 70 8.6 4.9 176 DEADMAN HILL 10220 5.1 4.2 121 6.2 4.8 129 DEER PARK 9700 4.3 -M * 6.4 -M * LAPRELE CREEK 8320 .4 2.6 15 6.2 3.1 200 RENO HILL 8400 4.6 3.7 124 8.8 6.2 142 ROACH 9700 3.3 4.2 79 5.7 5.9 97 SAND LAKE 10080 9.3 8.4 111 10.7 5.7 188 SOUTH PASS 9040 4.0 5.0 80 5.8 5.0 116 WINDY PEAK 7840 .7 2.0 35 6.4 2.6 246 ----- ----- Basin wide percent of average 84 150 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.8 2.3 78 6.2 4.3 144 DIVIDE PEAK 8800 4.0 5.3 75 9.8 6.3 156 OLD BATTLE 10000 6.8 8.3 82 10.7 8.2 130 SANDSTONE RS 8150 1.3 2.9 45 7.2 4.9 147 WHISKEY PARK 8950 4.3 6.5 66 9.5 5.8 164 ----- ----- Basin wide percent of average 72 147 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.6 2.9 124 3.8 4.4 86 BLIND BULL SUM 8650 4.6 6.9 67 5.1 5.9 86 EAST RIM DIVIDE 7930 1.8 1.4 129* 2.9 4.1 71 ELKHART PARK G.S. 9400 3.2 2.9 110 3.9 4.4 89 GROS VENTRE SUMMIT 8775 3.6 3.4 106 4.3 4.4 98 KENDALL R.S. 7740 2.3 2.3 100 3.1 4.2 74 LOOMIS PARK 8240 2.4 3.0 80 3.7 5.1 73 NEW FORK LAKE 8340 2.1 1.9 111 2.9 3.9 74 SNIDER BASIN 8250 1.8 2.5 72 2.8 4.1 68 SPRING CREEK DIVIDE 9000 3.8 5.5 69 5.0 7.0 71 TRIPLE PEAK 8500 4.1 5.0 82 5.8 8.4 69 ----- ----- Basin wide percent of average 88 77 LOWER GREEN RIVER HAMS FORK 7840 1.1 1.5 73 2.8 3.6 78 HEWINTA 9500 1.4 2.2 64 4.2 4.2 100 HICKERSON PARK 9150 1.3 1.5 87 4.0 3.5 114 HOLE-IN-ROCK 9150 .9 1.3 69 4.5 3.5 129 INDIAN CREEK 9425 4.3 5.7 75 4.8 6.8 71 KELLEY R.S. 8180 2.1 3.0 70 3.7 5.1 73 STEEL CREEK PARK 10100 3.5 4.7 74 5.5 4.4 125 ----- ----- Basin wide percent of average 73 95 UPPER BEAR RIVER BUG LAKE 7950 1.3 4.5 29 3.9 6.2 63 HAYDEN FORK 9400 2.5 3.4 74 5.4 5.2 104 KELLEY R.S. 8180 2.1 3.0 70 3.7 5.1 73 LILY LAKE 9050 3.4 3.3 103 5.7 4.8 119 MONTE CRISTO 8960 3.5 5.6 63 6.2 7.5 83 SALT RIVER SUMMIT 7600 1.4 2.0 70 3.8 4.6 83 TRIAL LAKE 9960 3.3 5.6 59 4.8 6.8 71 ----- ----- Basin wide percent of average 64 83 ----------------------------------------------------------------------------- -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.