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 26 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.4 11.7 132 16.2 15.3 106 COTTONWOOD CREEK 7600 13.8 13.1 105 16.9 16.3 104 GRANITE CREEK 6770 12.2 11.4 107 14.3 16.2 88 GRASSY LAKE 7265 26.4 21.4 123 26.7 24.8 108 GROS VENTRE SUMMIT 8775 9.3 9.9 94 9.4 10.9 86 LEWIS LAKE DIVIDE 7860 25.2 21.2 119 25.9 25.3 102 PHILLIPS BENCH 8200 19.3 18.0 107 19.3 19.9 97 SALT RIVER SUMMIT 7600 8.6 8.3 104 10.9 11.6 94 SNAKE RIVER STATION 6920 14.5 11.6 125 17.6 17.5 101 SPRING CREEK DIVIDE 9000 16.6 17.0 98 17.0 18.2 93 THUMB DIVIDE 7980 -M 10.7 * -M 14.4 * TOGWOTEE PASS 9580 -M 15.8 * 19.4 18.9 103 TWO OCEAN PLATEAU 9360 23.8 17.2 138 20.8 21.1 99 WILLOW CREEK 8450 19.2 19.5 98 24.2 21.4 113 ----- ----- Basin wide percent of average 113 101 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 18.6 15.2 122 16.8 11.4 147 BLACK BEAR 7950 30.7 22.8 135 -M 24.7 * CANYON 7940 12.0 7.8 154 12.8 9.3 138 FISHER CREEK 9100 26.9 22.6 119 23.6 22.9 103 MADISON PLATEAU 7750 -M 15.0 * 18.1 16.2 112 NORTHEAST ENTRANCE 7350 8.5 6.0 142 10.4 7.8 133 PARKER PEAK 9400 16.2 13.6 119 -M 9.9 * SYLVAN LAKE 8420 18.4 14.2 130 20.5 12.5 164 THUMB DIVIDE 7980 -M 10.7 * -M 14.4 * TWO OCEAN PLATEAU 9360 23.8 17.2 138 20.8 21.1 99 WHISKEY CREEK 6800 13.1 10.4 126 15.3 13.5 113 WHITE MILL 8700 18.0 15.8 114 16.4 18.0 91 WOLVERINE 7650 11.6 7.4 157 9.8 8.3 118 ----- ----- Basin wide percent of average 129 117 WIND RIVER BURROUGHS CREEK 8750 11.7 9.8 119 12.7 10.7 119 COLD SPRINGS 9630 6.5 5.6 116 8.2 6.6 124 DEER PARK 9700 10.0 -M * 13.6 -M * HOBBS PARK 10100 10.5 9.6 109 10.4 8.8 118 LITTLE WARM 9620 8.7 6.8 128 9.8 8.5 115 SOUTH PASS 9040 11.0 10.8 102 12.4 10.3 120 ST. LAWRENCE ALT 8620 4.6 4.5 102 7.2 6.0 120 TOGWOTEE PASS 9580 -M 15.8 * 19.4 18.9 103 TOWNSEND CREEK 8700 5.7 5.9 97 8.1 7.4 109 ----- ----- Basin wide percent of average 111 114 BIGHORN BASIN BALD MTN. 9375 13.9 13.2 105 13.1 11.1 118 BEAR TRAP MEADOW 7900 4.4 4.6 96 7.3 5.2 140 BLACKWATER 9780 20.9 13.3 157 18.2 11.5 158 BONE SPRINGS DIV 9350 10.9 10.1 108 11.2 8.9 126 EVENING STAR 9200 23.7 17.0 139 24.5 14.4 170 GRAVE SPRINGS 8550 4.8 5.8 83 7.7 6.1 126 KIRWIN 9550 8.4 6.4 131 9.5 6.5 146 MARQUETTE 8760 6.1 4.9 124 6.9 5.6 123 MIDDLE POWDER 7760 5.0 7.4 68 11.0 7.5 147 OWL CREEK 8975 4.0 2.7 148 4.7 3.6 131 POWDER RIVER PASS 9480 8.4 6.6 127 10.5 7.4 142 SHELL CREEK 9580 12.1 9.7 125 10.9 8.4 130 SYLVAN LAKE 8420 18.4 14.2 130 20.5 12.5 164 SYLVAN ROAD 8120 12.3 8.0 154 14.2 10.5 135 TIMBER CREEK 7950 3.7 3.4 109 5.5 4.0 138 YOUNTS PEAK 8350 14.7 11.6 127 13.0 10.7 121 ----- ----- Basin wide percent of average 124 141 SHOSHONE RIVER BLACKWATER 9780 20.9 13.3 157 18.2 11.5 158 EVENING STAR 9200 23.7 17.0 139 24.5 14.4 170 KIRWIN 9550 8.4 6.4 131 9.5 6.5 146 MARQUETTE 8760 6.1 4.9 124 6.9 5.6 123 SYLVAN LAKE 8420 18.4 14.2 130 20.5 12.5 164 SYLVAN ROAD 8120 12.3 8.0 154 14.2 10.5 135 YOUNTS PEAK 8350 14.7 11.6 127 13.0 10.7 121 ----- ----- Basin wide percent of average 139 149 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.4 4.6 96 7.3 5.2 140 BIG GOOSE 7990 3.8 -M * 6.8 -M * BONE SPRINGS DIV 9350 10.9 10.1 108 11.2 8.9 126 BURGESS JUNCTION 7880 5.4 7.2 75 7.4 6.8 109 CLOUD PEAK RESERVOIR 9860 9.5 7.5 127 7.8 7.7 101 DOME LAKE 8880 5.6 8.5 66 7.5 8.4 89 GRAVE SPRINGS 8550 4.8 5.8 83 7.7 6.1 126 HANSEN SAWMILL 8760 3.8 4.4 86 5.8 4.8 121 MIDDLE POWDER 7760 5.0 7.4 68 11.0 7.5 147 POWDER RIVER PASS 9480 8.4 6.6 127 10.5 7.4 142 SUCKER CREEK 8880 6.9 7.0 99 9.0 8.2 110 TIE CREEK 6870 2.4 -M * 5.9 6.5 91 ----- ----- Basin wide percent of average 94 118 BELLE FOURCHE BLIND PARK 6890 5.1 6.8 75 12.2 5.8 210 NORTH RAPID CREEK 6130 4.0 -M * 10.6 -M * WARREN PEAK 6520 5.9 6.8 87 10.9 4.9 222 ----- ----- Basin wide percent of average 81 216 UPPER N. PLATTE RIVER COLUMBINE 9400 13.4 14.7 91 15.0 15.3 98 DIVIDE PEAK 8800 12.1 12.6 96 17.7 15.3 116 ELK RIVER 8700 -M 11.7 * 15.8 11.8 134 JOE WRIGHT 10120 14.0 13.3 105 19.1 15.6 122 NORTH FRENCH CREEK 10100 19.4 15.2 128 20.1 14.3 141 OLD BATTLE 10000 17.5 19.4 90 23.7 18.4 129 SOUTH BRUSH CREEK 8400 6.1 6.7 91 14.5 10.5 138 TOWER 10500 26.8 28.1 95 26.2 22.7 115 WEBBER SPRINGS 9200 12.4 16.4 76 17.4 15.9 109 WILLOW CREEK PASS 9540 7.4 7.0 106 8.9 7.5 119 ----- ----- Basin wide percent of average 97 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.4 15.3 88 15.7 11.4 138 CASPER MTN. 7900 5.7 9.0 63 11.2 8.3 135 DEADMAN HILL 10220 -M 10.5 * 13.2 9.7 136 DEER PARK 9700 10.0 -M * 13.6 -M * LAPRELE CREEK 8320 2.3 6.2 37 9.2 7.1 130 RENO HILL 8400 7.6 7.9 96 12.0 11.1 108 ROACH 9700 11.8 10.4 113 14.6 13.4 109 SAND LAKE 10080 21.3 20.1 106 20.3 12.3 165 SOUTH PASS 9040 11.0 10.8 102 12.4 10.3 120 WINDY PEAK 7840 3.2 4.2 76 8.8 5.6 157 ----- ----- Basin wide percent of average 91 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.1 6.9 103 11.8 10.2 116 DIVIDE PEAK 8800 12.1 12.6 96 17.7 15.3 116 OLD BATTLE 10000 17.5 19.4 90 23.7 18.4 129 SANDSTONE RS 8150 7.5 8.7 86 14.0 12.5 112 WHISKEY PARK 8950 16.3 17.4 94 20.4 18.4 111 ----- ----- Basin wide percent of average 93 117 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.5 9.0 117 9.7 11.2 87 BLIND BULL SUM 8650 17.8 17.9 99 14.8 15.7 94 EAST RIM DIVIDE 7930 8.4 8.6 98 8.9 10.4 86 ELKHART PARK G.S. 9400 8.6 8.4 102 9.2 11.0 84 GROS VENTRE SUMMIT 8775 9.3 9.9 94 9.4 10.9 86 KENDALL R.S. 7740 9.2 9.3 99 9.8 10.6 92 LOOMIS PARK 8240 9.9 10.8 92 12.8 13.0 98 NEW FORK LAKE 8340 7.5 7.3 103 7.8 10.0 78 SNIDER BASIN 8250 8.8 9.2 96 9.4 10.4 90 SPRING CREEK DIVIDE 9000 16.6 17.0 98 17.0 18.2 93 TRIPLE PEAK 8500 16.1 16.2 99 17.8 21.3 84 ----- ----- Basin wide percent of average 99 89 LOWER GREEN RIVER HAMS FORK 7840 7.2 7.5 96 6.9 9.2 75 HEWINTA 9500 5.7 5.8 98 8.7 8.0 109 HICKERSON PARK 9150 3.6 3.3 109 6.4 5.8 110 HOLE-IN-ROCK 9150 4.2 3.0 140 6.8 5.8 117 INDIAN CREEK 9425 15.9 16.8 95 13.8 17.2 80 KELLEY R.S. 8180 9.6 10.0 96 11.3 12.9 88 STEEL CREEK PARK 10100 8.5 9.3 91 10.5 8.3 127 ----- ----- Basin wide percent of average 98 96 UPPER BEAR RIVER BUG LAKE 7950 9.8 12.2 80 11.2 12.2 92 HAYDEN FORK 9400 8.3 9.7 86 11.7 11.3 104 KELLEY R.S. 8180 9.6 10.0 96 11.3 12.9 88 LILY LAKE 9050 -M 7.8 * -M 9.1 * MONTE CRISTO 8960 14.2 16.2 88 15.9 15.7 101 SALT RIVER SUMMIT 7600 8.6 8.3 104 10.9 11.6 94 TRIAL LAKE 9960 10.4 15.0 69 11.4 14.4 79 ----- ----- Basin wide percent of average 85 93 ----------------------------------------------------------------------------- -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.