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: JANUARY 19 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.0 10.7 121 15.3 14.2 108 COTTONWOOD CREEK 7600 11.6 12.1 96 14.7 15.0 98 GRANITE CREEK 6770 9.9 10.4 95 11.9 14.9 80 GRASSY LAKE 7265 22.1 19.6 113 22.8 23.0 99 GROS VENTRE SUMMIT 8775 7.7 9.1 85 8.0 10.1 79 LEWIS LAKE DIVIDE 7860 20.9 19.3 108 22.5 23.4 96 PHILLIPS BENCH 8200 16.0 16.3 98 16.4 18.4 89 SALT RIVER SUMMIT 7600 7.1 7.5 95 9.3 10.7 87 SNAKE RIVER STATION 6920 12.0 10.6 113 14.8 16.2 91 SPRING CREEK DIVIDE 9000 14.5 15.5 94 14.8 16.8 88 THUMB DIVIDE 7980 12.4 9.8 127 12.6 13.3 95 TOGWOTEE PASS 9580 -M 14.6 * 17.6 17.5 101 TWO OCEAN PLATEAU 9360 21.3 16.0 133 18.8 19.6 96 WILLOW CREEK 8450 15.5 17.8 87 20.7 19.8 105 ----- ----- Basin wide percent of average 105 95 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 17.2 14.2 121 15.5 10.6 146 BLACK BEAR 7950 26.5 20.9 127 23.0 22.6 102 CANYON 7940 10.5 7.2 146 11.6 8.6 135 FISHER CREEK 9100 25.1 20.8 121 22.4 21.0 107 MADISON PLATEAU 7750 -M 13.7 * 17.1 15.0 114 NORTHEAST ENTRANCE 7350 7.6 5.5 138 9.5 7.3 130 PARKER PEAK 9400 14.7 12.8 115 -M 9.3 * SYLVAN LAKE 8420 16.3 13.3 123 18.8 11.8 159 THUMB DIVIDE 7980 12.4 9.8 127 12.6 13.3 95 TWO OCEAN PLATEAU 9360 21.3 16.0 133 18.8 19.6 96 WHISKEY CREEK 6800 11.2 9.5 118 13.7 12.4 110 WHITE MILL 8700 16.2 14.7 110 14.8 16.6 89 WOLVERINE 7650 10.4 6.8 153 8.5 7.8 109 ----- ----- Basin wide percent of average 125 112 WIND RIVER BURROUGHS CREEK 8750 10.4 9.1 114 11.3 10.0 113 COLD SPRINGS 9630 5.9 5.3 111 7.5 6.3 119 DEER PARK 9700 8.1 -M * -M -M * HOBBS PARK 10100 9.1 9.2 99 9.2 8.2 112 LITTLE WARM 9620 7.9 6.4 123 9.0 7.9 114 SOUTH PASS 9040 9.2 10.2 90 10.7 9.6 111 ST. LAWRENCE ALT 8620 4.1 4.2 98 6.8 5.8 117 TOGWOTEE PASS 9580 -M 14.6 * 17.6 17.5 101 TOWNSEND CREEK 8700 4.9 5.5 89 7.5 7.0 107 ----- ----- Basin wide percent of average 103 110 BIGHORN BASIN BALD MTN. 9375 13.2 12.4 106 12.5 10.4 120 BEAR TRAP MEADOW 7900 4.0 4.3 93 6.8 4.9 139 BLACKWATER 9780 18.8 12.4 152 16.4 10.8 152 BONE SPRINGS DIV 9350 10.1 9.5 106 10.4 8.4 124 EVENING STAR 9200 21.9 16.0 137 22.7 13.4 169 GRAVE SPRINGS 8550 4.6 5.5 84 7.6 5.9 129 KIRWIN 9550 7.7 6.1 126 9.0 6.1 148 MARQUETTE 8760 5.4 4.6 117 6.3 5.3 119 MIDDLE POWDER 7760 4.8 7.0 69 10.9 7.0 156 OWL CREEK 8975 3.6 2.5 144 4.4 3.4 129 POWDER RIVER PASS 9480 7.8 6.2 126 9.9 6.9 143 SHELL CREEK 9580 11.3 9.2 123 10.4 7.9 132 SYLVAN LAKE 8420 16.3 13.3 123 18.8 11.8 159 SYLVAN ROAD 8120 11.0 7.4 149 12.9 9.8 132 TIMBER CREEK 7950 3.5 3.1 113 5.4 3.8 142 YOUNTS PEAK 8350 13.5 10.9 124 11.7 9.9 118 ----- ----- Basin wide percent of average 121 140 SHOSHONE RIVER BLACKWATER 9780 18.8 12.4 152 16.4 10.8 152 EVENING STAR 9200 21.9 16.0 137 22.7 13.4 169 KIRWIN 9550 7.7 6.1 126 9.0 6.1 148 MARQUETTE 8760 5.4 4.6 117 6.3 5.3 119 SYLVAN LAKE 8420 16.3 13.3 123 18.8 11.8 159 SYLVAN ROAD 8120 11.0 7.4 149 12.9 9.8 132 YOUNTS PEAK 8350 13.5 10.9 124 11.7 9.9 118 ----- ----- Basin wide percent of average 134 146 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.0 4.3 93 6.8 4.9 139 BIG GOOSE 7990 3.6 -M * 6.5 -M * BONE SPRINGS DIV 9350 10.1 9.5 106 10.4 8.4 124 BURGESS JUNCTION 7880 5.1 6.8 75 7.1 6.5 109 CLOUD PEAK RESERVOIR 9860 9.5 7.0 136 8.4 7.3 115 DOME LAKE 8880 5.3 7.9 67 7.4 7.9 94 GRAVE SPRINGS 8550 4.6 5.5 84 7.6 5.9 129 HANSEN SAWMILL 8760 3.4 4.1 83 5.6 4.5 124 MIDDLE POWDER 7760 4.8 7.0 69 10.9 7.0 156 POWDER RIVER PASS 9480 7.8 6.2 126 9.9 6.9 143 SUCKER CREEK 8880 6.5 6.5 100 8.7 7.7 113 TIE CREEK 6870 2.2 -M * 5.7 6.2 92 ----- ----- Basin wide percent of average 94 121 BELLE FOURCHE BLIND PARK 6890 4.6 6.4 72 11.7 5.6 209 NORTH RAPID CREEK 6130 3.8 -M * 10.5 -M * WARREN PEAK 6520 5.7 6.4 89 10.8 4.7 230 ----- ----- Basin wide percent of average 80 218 UPPER N. PLATTE RIVER COLUMBINE 9400 11.4 13.5 84 13.3 14.1 94 DIVIDE PEAK 8800 9.9 11.8 84 15.6 14.3 109 ELK RIVER 8700 7.8 10.7 73 13.4 10.9 123 JOE WRIGHT 10120 11.4 12.5 91 16.5 14.4 115 NORTH FRENCH CREEK 10100 16.8 14.2 118 18.3 13.3 138 OLD BATTLE 10000 14.3 18.1 79 20.4 17.2 119 SOUTH BRUSH CREEK 8400 5.6 6.2 90 13.2 10.4 127 TOWER 10500 22.6 25.9 87 22.9 21.0 109 WEBBER SPRINGS 9200 10.1 15.3 66 15.0 15.2 99 WILLOW CREEK PASS 9540 5.3 6.7 79 7.3 7.1 103 ----- ----- Basin wide percent of average 85 113 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.2 14.5 77 13.9 10.6 131 CASPER MTN. 7900 4.9 8.5 58 10.5 8.0 131 DEADMAN HILL 10220 10.7 9.9 108 11.5 9.1 126 DEER PARK 9700 8.1 -M * -M -M * LAPRELE CREEK 8320 1.6 5.8 28 8.2 6.6 124 RENO HILL 8400 6.6 7.5 88 11.1 10.7 104 ROACH 9700 9.3 9.7 96 12.1 12.5 97 SAND LAKE 10080 18.4 18.8 98 18.0 11.5 157 SOUTH PASS 9040 9.2 10.2 90 10.7 9.6 111 WINDY PEAK 7840 2.4 3.9 62 8.2 5.1 161 ----- ----- Basin wide percent of average 84 124 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.9 6.4 92 10.2 9.5 107 DIVIDE PEAK 8800 9.9 11.8 84 15.6 14.3 109 OLD BATTLE 10000 14.3 18.1 79 20.4 17.2 119 SANDSTONE RS 8150 6.0 8.1 74 12.2 11.5 106 WHISKEY PARK 8950 13.3 16.2 82 17.9 16.6 108 ----- ----- Basin wide percent of average 82 110 UPPER GREEN RIVER BIG SANDY OPENING 9100 8.5 8.2 104 8.0 10.3 78 BLIND BULL SUM 8650 14.8 16.6 89 12.2 14.3 85 EAST RIM DIVIDE 7930 6.9 7.8 88 7.4 9.6 77 ELKHART PARK G.S. 9400 6.9 7.8 88 7.5 10.1 74 GROS VENTRE SUMMIT 8775 7.7 9.1 85 8.0 10.1 79 KENDALL R.S. 7740 7.6 8.5 89 8.3 9.8 85 LOOMIS PARK 8240 9.2 9.8 94 10.7 12.0 89 NEW FORK LAKE 8340 6.1 6.6 92 6.6 9.2 72 SNIDER BASIN 8250 7.6 8.4 90 8.3 9.6 86 SPRING CREEK DIVIDE 9000 14.5 15.5 94 14.8 16.8 88 TRIPLE PEAK 8500 14.0 14.8 95 15.8 19.7 80 ----- ----- Basin wide percent of average 92 82 LOWER GREEN RIVER HAMS FORK 7840 5.6 6.7 84 5.6 8.5 66 HEWINTA 9500 4.5 5.4 83 7.0 7.6 92 HICKERSON PARK 9150 2.8 3.1 90 5.6 5.5 102 HOLE-IN-ROCK 9150 3.7 2.8 132 6.2 5.5 113 INDIAN CREEK 9425 13.2 15.5 85 11.5 15.9 72 KELLEY R.S. 8180 7.9 9.1 87 9.6 11.9 81 STEEL CREEK PARK 10100 6.5 8.8 74 8.6 7.8 110 ----- ----- Basin wide percent of average 86 86 UPPER BEAR RIVER BUG LAKE 7950 7.0 11.4 61 8.5 11.4 75 HAYDEN FORK 9400 6.5 9.1 71 9.7 10.6 92 KELLEY R.S. 8180 7.9 9.1 87 9.6 11.9 81 LILY LAKE 9050 -M 7.4 * -M 8.5 * MONTE CRISTO 8960 10.4 15.0 69 13.0 14.7 88 SALT RIVER SUMMIT 7600 7.1 7.5 95 9.3 10.7 87 TRIAL LAKE 9960 7.3 14.1 52 8.4 13.4 63 ----- ----- Basin wide percent of average 70 80 ----------------------------------------------------------------------------- -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.