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 WEDNESDAY: JANUARY 27 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.6 11.8 132 16.3 15.5 105 COTTONWOOD CREEK 7600 13.9 13.3 105 17.0 16.4 104 GRANITE CREEK 6770 12.3 11.6 106 14.4 16.3 88 GRASSY LAKE 7265 26.9 21.7 124 27.3 25.1 109 GROS VENTRE SUMMIT 8775 -M 10.0 * -M 11.0 * LEWIS LAKE DIVIDE 7860 25.3 21.4 118 26.1 25.5 102 PHILLIPS BENCH 8200 19.5 18.2 107 19.5 20.2 97 SALT RIVER SUMMIT 7600 8.7 8.4 104 11.0 11.7 94 SNAKE RIVER STATION 6920 14.6 11.7 125 17.8 17.7 101 SPRING CREEK DIVIDE 9000 16.7 17.2 97 17.1 18.4 93 THUMB DIVIDE 7980 -M 10.8 * -M 14.5 * TOGWOTEE PASS 9580 -M 16.0 * 19.5 19.1 102 TWO OCEAN PLATEAU 9360 23.9 17.4 137 20.8 21.4 97 WILLOW CREEK 8450 19.5 19.8 98 24.3 21.6 112 ----- ----- Basin wide percent of average 114 101 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 18.7 15.3 122 16.9 11.5 147 BLACK BEAR 7950 31.1 23.1 135 -M 25.0 * CANYON 7940 12.2 7.9 154 13.0 9.4 138 FISHER CREEK 9100 27.2 22.9 119 23.7 23.2 102 MADISON PLATEAU 7750 -M 15.2 * 19.6 16.4 120 NORTHEAST ENTRANCE 7350 8.6 6.0 143 10.5 7.9 133 PARKER PEAK 9400 16.4 13.7 120 -M 10.0 * SYLVAN LAKE 8420 18.6 14.3 130 20.9 12.7 165 THUMB DIVIDE 7980 -M 10.8 * -M 14.5 * TWO OCEAN PLATEAU 9360 23.9 17.4 137 20.8 21.4 97 WHISKEY CREEK 6800 13.4 10.6 126 15.4 13.6 113 WHITE MILL 8700 18.3 16.0 114 16.8 18.3 92 WOLVERINE 7650 11.7 7.5 156 9.9 8.4 118 ----- ----- Basin wide percent of average 129 117 WIND RIVER BURROUGHS CREEK 8750 11.8 9.9 119 12.8 10.8 119 COLD SPRINGS 9630 6.4 5.6 114 8.1 6.7 121 DEER PARK 9700 10.1 -M * 13.7 -M * HOBBS PARK 10100 10.4 9.7 107 10.3 8.8 117 LITTLE WARM 9620 -M 6.9 * -M 8.5 * SOUTH PASS 9040 11.1 10.9 102 12.5 10.3 121 ST. LAWRENCE ALT 8620 4.5 4.6 98 7.2 6.1 118 TOGWOTEE PASS 9580 -M 16.0 * 19.5 19.1 102 TOWNSEND CREEK 8700 5.5 5.9 93 8.0 7.5 107 ----- ----- Basin wide percent of average 107 113 BIGHORN BASIN BALD MTN. 9375 14.0 13.3 105 13.1 11.2 117 BEAR TRAP MEADOW 7900 4.5 4.6 98 7.0 5.2 135 BLACKWATER 9780 20.7 13.4 154 18.1 11.7 155 BONE SPRINGS DIV 9350 11.0 10.2 108 11.2 9.0 124 EVENING STAR 9200 23.7 17.1 139 24.6 14.6 168 GRAVE SPRINGS 8550 4.8 5.9 81 7.7 6.2 124 KIRWIN 9550 8.3 6.4 130 9.6 6.5 148 MARQUETTE 8760 6.0 4.9 122 6.8 5.6 121 MIDDLE POWDER 7760 4.9 7.5 65 10.9 7.5 145 OWL CREEK 8975 4.0 2.7 148 4.9 3.6 136 POWDER RIVER PASS 9480 8.4 6.7 125 10.4 7.4 141 SHELL CREEK 9580 12.1 9.8 123 10.9 8.5 128 SYLVAN LAKE 8420 18.6 14.3 130 20.9 12.7 165 SYLVAN ROAD 8120 12.4 8.1 153 14.3 10.6 135 TIMBER CREEK 7950 3.8 3.4 112 5.5 4.1 134 YOUNTS PEAK 8350 14.9 11.7 127 13.2 10.8 122 ----- ----- Basin wide percent of average 123 140 SHOSHONE RIVER BLACKWATER 9780 20.7 13.4 154 18.1 11.7 155 EVENING STAR 9200 23.7 17.1 139 24.6 14.6 168 KIRWIN 9550 8.3 6.4 130 9.6 6.5 148 MARQUETTE 8760 6.0 4.9 122 6.8 5.6 121 SYLVAN LAKE 8420 18.6 14.3 130 20.9 12.7 165 SYLVAN ROAD 8120 12.4 8.1 153 14.3 10.6 135 YOUNTS PEAK 8350 14.9 11.7 127 13.2 10.8 122 ----- ----- Basin wide percent of average 138 148 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.5 4.6 98 7.0 5.2 135 BIG GOOSE 7990 3.8 -M * 6.8 -M * BONE SPRINGS DIV 9350 11.0 10.2 108 11.2 9.0 124 BURGESS JUNCTION 7880 5.4 7.3 74 7.3 6.9 106 CLOUD PEAK RESERVOIR 9860 9.4 7.6 124 7.6 7.8 97 DOME LAKE 8880 5.6 8.6 65 7.4 8.4 88 GRAVE SPRINGS 8550 4.8 5.9 81 7.7 6.2 124 HANSEN SAWMILL 8760 3.6 4.4 82 5.8 4.8 121 MIDDLE POWDER 7760 4.9 7.5 65 10.9 7.5 145 POWDER RIVER PASS 9480 8.4 6.7 125 10.4 7.4 141 SUCKER CREEK 8880 6.8 7.1 96 9.0 8.3 108 TIE CREEK 6870 2.4 -M * 5.9 6.6 89 ----- ----- Basin wide percent of average 92 115 BELLE FOURCHE BLIND PARK 6890 5.3 6.9 77 12.3 5.9 208 NORTH RAPID CREEK 6130 4.0 -M * 10.6 -M * WARREN PEAK 6520 5.9 6.9 86 10.8 5.0 216 ----- ----- Basin wide percent of average 81 212 UPPER N. PLATTE RIVER COLUMBINE 9400 13.5 14.9 91 15.0 15.5 97 DIVIDE PEAK 8800 12.6 12.7 99 18.0 15.4 117 ELK RIVER 8700 -M 11.8 * 15.9 11.9 134 JOE WRIGHT 10120 14.3 13.4 107 19.4 15.7 124 NORTH FRENCH CREEK 10100 19.6 15.3 128 20.1 14.4 140 OLD BATTLE 10000 18.0 19.6 92 24.0 18.6 129 SOUTH BRUSH CREEK 8400 5.8 6.7 87 14.5 10.6 137 TOWER 10500 -M 28.4 * -M 22.9 * WEBBER SPRINGS 9200 12.7 16.6 77 17.6 16.1 109 WILLOW CREEK PASS 9540 7.7 7.1 108 9.1 7.5 121 ----- ----- Basin wide percent of average 98 122 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.4 15.4 87 15.7 11.5 137 CASPER MTN. 7900 6.6 9.0 73 12.0 8.4 143 DEADMAN HILL 10220 -M 10.6 * 13.4 9.8 137 DEER PARK 9700 10.1 -M * 13.7 -M * LAPRELE CREEK 8320 3.1 6.3 49 9.7 7.2 135 RENO HILL 8400 8.6 8.0 108 12.9 11.1 116 ROACH 9700 12.1 10.5 115 14.9 13.6 110 SAND LAKE 10080 21.6 20.3 106 20.4 12.4 165 SOUTH PASS 9040 11.1 10.9 102 12.5 10.3 121 WINDY PEAK 7840 3.6 4.3 84 8.9 5.6 159 ----- ----- Basin wide percent of average 95 134 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.3 6.9 106 12.0 10.4 115 DIVIDE PEAK 8800 12.6 12.7 99 18.0 15.4 117 OLD BATTLE 10000 18.0 19.6 92 24.0 18.6 129 SANDSTONE RS 8150 7.9 8.8 90 14.4 12.6 114 WHISKEY PARK 8950 16.5 17.5 94 20.6 18.7 110 ----- ----- Basin wide percent of average 95 118 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.3 9.1 113 9.7 11.3 86 BLIND BULL SUM 8650 17.8 18.1 98 14.8 15.8 94 EAST RIM DIVIDE 7930 8.5 8.7 98 8.9 10.5 85 ELKHART PARK G.S. 9400 8.6 8.5 101 9.2 11.1 83 GROS VENTRE SUMMIT 8775 -M 10.0 * -M 11.0 * KENDALL R.S. 7740 9.2 9.4 98 9.8 10.7 92 LOOMIS PARK 8240 9.9 10.9 91 12.9 13.1 98 NEW FORK LAKE 8340 7.5 7.4 101 7.8 10.1 77 SNIDER BASIN 8250 8.9 9.3 96 9.4 10.5 90 SPRING CREEK DIVIDE 9000 16.7 17.2 97 17.1 18.4 93 TRIPLE PEAK 8500 16.0 16.4 98 17.8 21.6 82 ----- ----- Basin wide percent of average 99 88 LOWER GREEN RIVER HAMS FORK 7840 7.3 7.6 96 7.0 9.3 75 HEWINTA 9500 5.8 5.9 98 8.8 8.1 109 HICKERSON PARK 9150 3.8 3.4 112 6.4 5.8 110 HOLE-IN-ROCK 9150 4.1 3.1 132 6.8 5.8 117 INDIAN CREEK 9425 15.9 17.0 94 13.8 17.4 79 KELLEY R.S. 8180 9.7 10.1 96 11.4 13.0 88 STEEL CREEK PARK 10100 8.6 9.4 91 10.5 8.3 127 ----- ----- Basin wide percent of average 98 96 UPPER BEAR RIVER BUG LAKE 7950 10.1 12.3 82 11.3 12.3 92 HAYDEN FORK 9400 8.4 9.8 86 11.9 11.4 104 KELLEY R.S. 8180 9.7 10.1 96 11.4 13.0 88 LILY LAKE 9050 8.0 7.8 103 11.1 9.1 122 MONTE CRISTO 8960 14.4 16.4 88 16.0 15.8 101 SALT RIVER SUMMIT 7600 8.7 8.4 104 11.0 11.7 94 TRIAL LAKE 9960 10.7 15.2 70 11.8 14.5 81 ----- ----- Basin wide percent of average 88 96 ----------------------------------------------------------------------------- -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.