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: FEBRUARY 2 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.5 12.6 123 16.6 16.4 101 COTTONWOOD CREEK 7600 14.2 14.2 100 17.2 17.5 98 GRANITE CREEK 6770 12.5 12.4 101 14.6 17.3 84 GRASSY LAKE 7265 27.5 23.5 117 27.9 26.6 105 GROS VENTRE SUMMIT 8775 9.3 10.7 87 9.5 11.7 81 LEWIS LAKE DIVIDE 7860 25.8 23.1 112 26.2 27.1 97 PHILLIPS BENCH 8200 19.8 19.6 101 19.6 21.5 91 SALT RIVER SUMMIT 7600 8.7 9.1 96 11.0 12.4 89 SNAKE RIVER STATION 6920 14.7 12.6 117 18.1 18.8 96 SPRING CREEK DIVIDE 9000 16.7 18.4 91 17.2 19.6 88 THUMB DIVIDE 7980 15.0 11.5 130 -M 15.4 * TOGWOTEE PASS 9580 -M 17.0 * 19.7 20.3 97 TWO OCEAN PLATEAU 9360 24.0 18.5 130 20.8 22.7 92 WILLOW CREEK 8450 20.0 21.2 94 24.5 23.0 107 ----- ----- Basin wide percent of average 108 95 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 18.8 16.1 117 16.9 12.2 139 BLACK BEAR 7950 31.8 24.8 128 -M 26.8 * CANYON 7940 12.2 8.4 145 13.0 10.0 130 FISHER CREEK 9100 27.5 24.4 113 23.8 24.8 96 MADISON PLATEAU 7750 -M 16.3 * 19.9 17.5 114 NORTHEAST ENTRANCE 7350 8.6 6.5 132 10.5 8.4 125 PARKER PEAK 9400 16.5 14.4 115 -M 10.6 * SYLVAN LAKE 8420 18.8 15.0 125 21.0 13.3 158 THUMB DIVIDE 7980 15.0 11.5 130 -M 15.4 * TWO OCEAN PLATEAU 9360 24.0 18.5 130 20.8 22.7 92 WHISKEY CREEK 6800 13.4 11.3 119 16.1 14.5 111 WHITE MILL 8700 18.5 17.0 109 16.8 19.5 86 WOLVERINE 7650 11.5 8.0 144 9.9 8.9 111 ----- ----- Basin wide percent of average 123 111 WIND RIVER BURROUGHS CREEK 8750 11.8 10.5 112 12.9 11.4 113 COLD SPRINGS 9630 6.4 5.8 110 8.1 7.0 116 DEER PARK 9700 10.2 -M * 13.8 -M * HOBBS PARK 10100 10.5 10.1 104 10.4 9.3 112 LITTLE WARM 9620 8.7 7.3 119 9.8 9.0 109 SOUTH PASS 9040 11.1 11.4 97 12.6 10.9 116 ST. LAWRENCE ALT 8620 4.6 4.9 94 7.3 6.4 114 TOGWOTEE PASS 9580 -M 17.0 * 19.7 20.3 97 TOWNSEND CREEK 8700 5.7 6.3 90 8.2 7.9 104 ----- ----- Basin wide percent of average 104 108 BIGHORN BASIN BALD MTN. 9375 14.1 13.9 101 13.0 11.8 110 BEAR TRAP MEADOW 7900 4.6 4.8 96 7.0 5.4 130 BLACKWATER 9780 20.8 14.1 148 18.2 12.3 148 BONE SPRINGS DIV 9350 10.9 10.7 102 11.1 9.5 117 EVENING STAR 9200 23.8 18.0 132 24.7 15.4 160 GRAVE SPRINGS 8550 4.7 6.2 76 7.8 6.4 122 KIRWIN 9550 8.3 6.7 124 9.6 6.9 139 MARQUETTE 8760 6.0 5.2 115 6.8 5.8 117 MIDDLE POWDER 7760 4.9 7.9 62 11.0 7.9 139 OWL CREEK 8975 4.1 2.8 146 4.7 3.8 124 POWDER RIVER PASS 9480 8.3 7.1 117 10.4 7.9 132 SHELL CREEK 9580 12.1 10.3 117 10.9 9.0 121 SYLVAN LAKE 8420 18.8 15.0 125 21.0 13.3 158 SYLVAN ROAD 8120 12.4 8.6 144 14.4 11.2 129 TIMBER CREEK 7950 3.8 3.7 103 5.5 4.2 131 YOUNTS PEAK 8350 14.9 12.3 121 13.2 11.4 116 ----- ----- Basin wide percent of average 117 133 SHOSHONE RIVER BLACKWATER 9780 20.8 14.1 148 18.2 12.3 148 EVENING STAR 9200 23.8 18.0 132 24.7 15.4 160 KIRWIN 9550 8.3 6.7 124 9.6 6.9 139 MARQUETTE 8760 6.0 5.2 115 6.8 5.8 117 SYLVAN LAKE 8420 18.8 15.0 125 21.0 13.3 158 SYLVAN ROAD 8120 12.4 8.6 144 14.4 11.2 129 YOUNTS PEAK 8350 14.9 12.3 121 13.2 11.4 116 ----- ----- Basin wide percent of average 131 141 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.6 4.8 96 7.0 5.4 130 BIG GOOSE 7990 3.9 -M * 6.7 -M * BONE SPRINGS DIV 9350 10.9 10.7 102 11.1 9.5 117 BURGESS JUNCTION 7880 5.4 7.7 70 7.4 7.2 103 CLOUD PEAK RESERVOIR 9860 9.6 8.1 119 8.3 8.2 101 DOME LAKE 8880 5.6 9.1 62 7.4 8.8 84 GRAVE SPRINGS 8550 4.7 6.2 76 7.8 6.4 122 HANSEN SAWMILL 8760 3.6 4.6 78 5.8 5.0 116 MIDDLE POWDER 7760 4.9 7.9 62 11.0 7.9 139 POWDER RIVER PASS 9480 8.3 7.1 117 10.4 7.9 132 SUCKER CREEK 8880 6.8 7.6 89 8.8 8.7 101 TIE CREEK 6870 2.3 -M * 5.9 6.9 86 ----- ----- Basin wide percent of average 87 111 BELLE FOURCHE BLIND PARK 6890 5.2 7.3 71 12.2 6.2 197 NORTH RAPID CREEK 6130 4.0 -M * 10.6 -M * WARREN PEAK 6520 6.1 7.3 84 10.8 5.2 208 ----- ----- Basin wide percent of average 77 202 UPPER N. PLATTE RIVER COLUMBINE 9400 14.1 16.0 88 15.4 16.5 93 DIVIDE PEAK 8800 13.0 13.4 97 18.2 16.2 112 ELK RIVER 8700 -M 12.7 * 16.5 12.6 131 JOE WRIGHT 10120 14.7 14.1 104 19.3 16.6 116 NORTH FRENCH CREEK 10100 20.2 16.2 125 20.1 15.2 132 OLD BATTLE 10000 18.6 20.7 90 24.4 19.6 124 SOUTH BRUSH CREEK 8400 5.4 7.2 75 14.8 10.8 137 TOWER 10500 28.6 30.3 94 26.8 24.3 110 WEBBER SPRINGS 9200 12.9 17.6 73 18.0 16.7 108 WILLOW CREEK PASS 9540 8.0 7.4 108 9.2 7.9 116 ----- ----- Basin wide percent of average 95 117 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.6 16.1 84 15.9 12.2 130 CASPER MTN. 7900 6.9 9.5 73 12.3 8.7 141 DEADMAN HILL 10220 -M 11.2 * 13.2 10.4 127 DEER PARK 9700 10.2 -M * 13.8 -M * LAPRELE CREEK 8320 2.7 6.7 40 9.9 7.7 129 RENO HILL 8400 8.9 8.4 106 13.3 11.5 116 ROACH 9700 12.6 11.1 114 15.1 14.3 106 SAND LAKE 10080 22.2 21.4 104 20.7 13.1 158 SOUTH PASS 9040 11.1 11.4 97 12.6 10.9 116 WINDY PEAK 7840 3.6 4.6 78 9.2 5.9 156 ----- ----- Basin wide percent of average 91 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.5 7.4 115 12.5 11.0 114 DIVIDE PEAK 8800 13.0 13.4 97 18.2 16.2 112 OLD BATTLE 10000 18.6 20.7 90 24.4 19.6 124 SANDSTONE RS 8150 8.2 9.4 87 14.8 13.4 110 WHISKEY PARK 8950 17.1 18.6 92 20.7 20.1 103 ----- ----- Basin wide percent of average 94 113 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.5 9.7 108 9.8 12.0 82 BLIND BULL SUM 8650 18.0 19.2 94 15.0 17.0 88 EAST RIM DIVIDE 7930 8.5 9.4 90 9.0 11.2 80 ELKHART PARK G.S. 9400 8.6 9.0 96 9.3 11.8 79 GROS VENTRE SUMMIT 8775 9.3 10.7 87 9.5 11.7 81 KENDALL R.S. 7740 9.2 10.0 92 9.8 11.4 86 LOOMIS PARK 8240 -M 11.7 * 12.9 13.9 93 NEW FORK LAKE 8340 7.6 8.0 95 7.8 10.7 73 SNIDER BASIN 8250 8.9 10.0 89 9.4 11.2 84 SPRING CREEK DIVIDE 9000 16.7 18.4 91 17.2 19.6 88 TRIPLE PEAK 8500 16.2 17.6 92 17.8 22.9 78 ----- ----- Basin wide percent of average 93 83 LOWER GREEN RIVER HAMS FORK 7840 7.3 8.2 89 7.1 9.9 72 HEWINTA 9500 6.0 6.3 95 9.2 8.5 108 HICKERSON PARK 9150 3.9 3.6 108 6.6 6.0 110 HOLE-IN-ROCK 9150 4.4 3.3 133 7.1 6.0 118 INDIAN CREEK 9425 16.3 18.1 90 13.9 18.5 75 KELLEY R.S. 8180 9.7 10.8 90 11.4 13.8 83 STEEL CREEK PARK 10100 8.8 9.9 89 10.8 8.7 124 ----- ----- Basin wide percent of average 94 93 UPPER BEAR RIVER BUG LAKE 7950 11.2 13.0 86 11.4 12.9 88 HAYDEN FORK 9400 8.6 10.3 83 12.0 12.0 100 KELLEY R.S. 8180 9.7 10.8 90 11.4 13.8 83 LILY LAKE 9050 8.3 8.2 101 11.8 9.6 123 MONTE CRISTO 8960 14.9 17.5 85 16.4 16.7 98 SALT RIVER SUMMIT 7600 8.7 9.1 96 11.0 12.4 89 TRIAL LAKE 9960 10.9 16.0 68 12.2 15.4 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.