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 MONDAY: NOVEMBER 30 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 4.2 3.8 111 5.7 6.4 89 COTTONWOOD CREEK 7600 3.8 4.1 93 7.0 6.7 104 GRANITE CREEK 6770 2.8 3.3 85 4.4 6.7 66 GRASSY LAKE 7265 7.2 6.7 107 8.9 10.3 86 GROS VENTRE SUMMIT 8775 4.3 3.5 123 4.9 4.6 107 LEWIS LAKE DIVIDE 7860 7.3 6.6 111 9.7 10.4 93 PHILLIPS BENCH 8200 6.5 5.4 120 7.1 8.0 89 SALT RIVER SUMMIT 7600 1.8 2.1 86 4.3 4.8 90 SNAKE RIVER STATION 6920 4.0 3.7 108 5.8 7.1 82 SPRING CREEK DIVIDE 9000 4.9 5.8 84 6.2 7.3 85 THUMB DIVIDE 7980 6.8 3.5 194 7.2 5.9 122 TOGWOTEE PASS 9580 7.2 5.9 122 7.5 7.7 97 TWO OCEAN PLATEAU 9360 10.3 7.7 134 9.1 8.7 105 WILLOW CREEK 8450 5.9 5.9 100 10.7 8.8 122 ----- ----- Basin wide percent of average 113 95 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 6.3 6.8 93 5.5 5.0 110 BLACK BEAR 7950 12.5 8.1 154 12.5 9.7 129 CANYON 7940 4.0 2.6 154 4.8 4.2 114 FISHER CREEK 9100 10.1 8.6 117 9.5 9.0 106 MADISON PLATEAU 7750 -M 5.2 * 9.5 6.8 140 NORTHEAST ENTRANCE 7350 1.9 1.8 106 3.5 3.6 97 PARKER PEAK 9400 6.0 6.9 87 -M 4.9 * SYLVAN LAKE 8420 7.5 6.6 114 9.3 6.4 145 THUMB DIVIDE 7980 6.8 3.5 194 7.2 5.9 122 TWO OCEAN PLATEAU 9360 10.3 7.7 134 9.1 8.7 105 WHISKEY CREEK 6800 5.7 3.7 154 7.3 5.5 133 WHITE MILL 8700 6.2 6.0 103 6.3 7.3 86 WOLVERINE 7650 3.3 2.2 150 3.7 4.0 93 ----- ----- Basin wide percent of average 125 116 WIND RIVER BURROUGHS CREEK 8750 3.6 3.6 100 4.2 5.0 84 COLD SPRINGS 9630 3.9 2.6 150 5.2 3.9 133 DEER PARK 9700 4.7 -M * 6.8 -M * HOBBS PARK 10100 6.4 4.9 131 6.9 4.3 160 LITTLE WARM 9620 4.1 3.1 132 4.8 4.4 109 SOUTH PASS 9040 4.2 5.2 81 6.0 5.2 115 ST. LAWRENCE ALT 8620 3.2 2.0 160 5.6 3.7 151 TOGWOTEE PASS 9580 7.2 5.9 122 7.5 7.7 97 TOWNSEND CREEK 8700 3.8 2.6 146 6.3 3.8 166 ----- ----- Basin wide percent of average 122 122 BIGHORN BASIN BALD MTN. 9375 5.1 5.9 86 5.1 5.0 102 BEAR TRAP MEADOW 7900 2.0 2.1 95 5.0 3.1 161 BLACKWATER 9780 9.8 5.7 172 8.7 5.5 158 BONE SPRINGS DIV 9350 3.9 4.9 80 4.4 4.3 102 EVENING STAR 9200 7.9 8.4 94 8.5 6.7 127 GRAVE SPRINGS 8550 1.9 2.8 68 5.2 3.5 149 KIRWIN 9550 4.3 3.2 134 4.8 3.6 133 MARQUETTE 8760 4.3 2.4 179 5.1 3.4 150 MIDDLE POWDER 7760 1.7 3.5 49 7.9 4.0 198 OWL CREEK 8975 2.6 1.1 236 3.4 2.0 170 POWDER RIVER PASS 9480 2.2 3.1 71 4.1 3.7 111 SHELL CREEK 9580 4.3 4.7 91 3.8 4.0 95 SYLVAN LAKE 8420 7.5 6.6 114 9.3 6.4 145 SYLVAN ROAD 8120 4.2 3.4 124 5.4 5.1 106 TIMBER CREEK 7950 2.7 1.2 225 4.2 2.5 168 YOUNTS PEAK 8350 5.5 5.3 104 4.9 4.9 100 ----- ----- Basin wide percent of average 109 133 SHOSHONE RIVER BLACKWATER 9780 9.8 5.7 172 8.7 5.5 158 EVENING STAR 9200 7.9 8.4 94 8.5 6.7 127 KIRWIN 9550 4.3 3.2 134 4.8 3.6 133 MARQUETTE 8760 4.3 2.4 179 5.1 3.4 150 SYLVAN LAKE 8420 7.5 6.6 114 9.3 6.4 145 SYLVAN ROAD 8120 4.2 3.4 124 5.4 5.1 106 YOUNTS PEAK 8350 5.5 5.3 104 4.9 4.9 100 ----- ----- Basin wide percent of average 124 131 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.0 2.1 95 5.0 3.1 161 BIG GOOSE 7990 1.7 -M * 4.6 -M * BONE SPRINGS DIV 9350 3.9 4.9 80 4.4 4.3 102 BURGESS JUNCTION 7880 1.9 3.5 54 4.3 3.7 116 CLOUD PEAK RESERVOIR 9860 3.8 3.3 115 5.4 4.2 129 DOME LAKE 8880 2.2 3.9 56 3.8 4.6 83 GRAVE SPRINGS 8550 1.9 2.8 68 5.2 3.5 149 HANSEN SAWMILL 8760 1.7 2.1 81 3.3 3.0 110 MIDDLE POWDER 7760 1.7 3.5 49 7.9 4.0 198 POWDER RIVER PASS 9480 2.2 3.1 71 4.1 3.7 111 SUCKER CREEK 8880 3.1 2.8 111 4.8 4.1 117 TIE CREEK 6870 .7 -M * 3.4 3.5 97 ----- ----- Basin wide percent of average 76 124 BELLE FOURCHE BLIND PARK 6890 1.0 3.3 30 7.3 3.2 228 NORTH RAPID CREEK 6130 .7 -M * 7.8 -M * WARREN PEAK 6520 1.3 3.3 39 7.6 2.7 281 ----- ----- Basin wide percent of average 35 253 UPPER N. PLATTE RIVER COLUMBINE 9400 3.3 4.9 67 6.3 6.1 103 DIVIDE PEAK 8800 5.1 5.6 91 10.9 6.6 165 ELK RIVER 8700 1.9 3.5 54 8.2 5.0 164 JOE WRIGHT 10120 4.2 6.5 65 9.1 7.7 118 NORTH FRENCH CREEK 10100 8.6 6.6 130 10.9 6.0 182 OLD BATTLE 10000 8.1 8.6 94 12.0 8.6 140 SOUTH BRUSH CREEK 8400 3.6 2.4 150 8.7 5.1 171 TOWER 10500 11.6 13.5 86 11.5 9.7 119 WEBBER SPRINGS 9200 4.5 6.8 66 8.7 8.3 105 WILLOW CREEK PASS 9540 3.7 3.2 116 5.2 3.8 137 ----- ----- Basin wide percent of average 89 137 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.2 6.8 62 6.5 5.2 125 CASPER MTN. 7900 2.8 4.6 61 8.5 5.1 167 DEADMAN HILL 10220 5.2 4.4 118 6.2 5.0 124 DEER PARK 9700 4.7 -M * 6.8 -M * LAPRELE CREEK 8320 .4 2.7 15 6.1 3.2 191 RENO HILL 8400 4.5 3.8 118 8.7 6.5 134 ROACH 9700 3.3 4.4 75 5.8 6.1 95 SAND LAKE 10080 9.6 8.7 110 10.8 5.9 183 SOUTH PASS 9040 4.2 5.2 81 6.0 5.2 115 WINDY PEAK 7840 .6 2.1 29 6.2 2.7 230 ----- ----- Basin wide percent of average 81 144 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.3 2.4 96 6.8 4.5 151 DIVIDE PEAK 8800 5.1 5.6 91 10.9 6.6 165 OLD BATTLE 10000 8.1 8.6 94 12.0 8.6 140 SANDSTONE RS 8150 2.1 3.0 70 7.9 5.1 155 WHISKEY PARK 8950 4.6 6.8 68 9.8 6.1 161 ----- ----- Basin wide percent of average 84 153 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.7 3.0 123 4.0 4.6 87 BLIND BULL SUM 8650 5.8 7.2 81 6.1 6.2 98 EAST RIM DIVIDE 7930 2.2 1.4 157* 3.2 4.3 74 ELKHART PARK G.S. 9400 3.1 3.0 103 4.0 4.6 87 GROS VENTRE SUMMIT 8775 4.3 3.5 123 4.9 4.6 107 KENDALL R.S. 7740 2.8 2.4 117 3.5 4.4 80 LOOMIS PARK 8240 2.9 3.2 91 4.3 5.4 80 NEW FORK LAKE 8340 2.1 2.0 105 2.8 4.1 68 SNIDER BASIN 8250 2.3 2.7 85 3.3 4.3 77 SPRING CREEK DIVIDE 9000 4.9 5.8 84 6.2 7.3 85 TRIPLE PEAK 8500 5.0 5.3 94 6.6 8.8 75 ----- ----- Basin wide percent of average 99 83 LOWER GREEN RIVER HAMS FORK 7840 1.3 1.6 81 2.9 3.8 76 HEWINTA 9500 1.2 2.3 52 4.3 4.3 100 HICKERSON PARK 9150 1.3 1.6 81 4.0 3.6 111 HOLE-IN-ROCK 9150 .9 1.4 64 4.4 3.6 122 INDIAN CREEK 9425 5.1 6.0 85 5.1 7.1 72 KELLEY R.S. 8180 2.4 3.2 75 4.0 5.4 74 STEEL CREEK PARK 10100 3.7 4.9 76 5.5 4.5 122 ----- ----- Basin wide percent of average 76 93 UPPER BEAR RIVER BUG LAKE 7950 2.1 4.8 44 4.4 6.4 69 HAYDEN FORK 9400 2.6 3.6 72 5.7 5.4 106 KELLEY R.S. 8180 2.4 3.2 75 4.0 5.4 74 LILY LAKE 9050 3.7 3.5 106 5.9 4.9 120 MONTE CRISTO 8960 4.5 6.0 75 7.2 7.8 92 SALT RIVER SUMMIT 7600 1.8 2.1 86 4.3 4.8 90 TRIAL LAKE 9960 3.6 5.9 61 5.2 7.1 73 ----- ----- Basin wide percent of average 71 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.