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: FEBRUARY 3 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 16.1 12.7 127 16.6 16.6 100 COTTONWOOD CREEK 7600 14.6 14.3 102 17.3 17.7 98 GRANITE CREEK 6770 12.7 12.5 102 14.9 17.5 85 GRASSY LAKE 7265 28.5 24.0 119 28.8 26.8 107 GROS VENTRE SUMMIT 8775 9.6 10.8 89 9.6 11.8 81 LEWIS LAKE DIVIDE 7860 26.8 23.3 115 26.9 27.3 99 PHILLIPS BENCH 8200 20.6 19.8 104 20.2 21.6 94 SALT RIVER SUMMIT 7600 8.9 9.2 97 11.2 12.5 90 SNAKE RIVER STATION 6920 14.9 12.7 117 18.4 18.9 97 SPRING CREEK DIVIDE 9000 17.0 18.6 91 17.5 19.7 89 THUMB DIVIDE 7980 15.3 11.6 132 15.0 15.6 96 TOGWOTEE PASS 9580 -M 17.2 * 19.9 20.4 98 TWO OCEAN PLATEAU 9360 24.6 18.6 132 21.1 22.9 92 WILLOW CREEK 8450 20.4 21.4 95 24.6 23.2 106 ----- ----- Basin wide percent of average 110 96 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.1 16.3 117 17.0 12.3 138 BLACK BEAR 7950 32.9 25.0 132 -M 27.0 * CANYON 7940 12.5 8.5 147 13.4 10.1 133 FISHER CREEK 9100 28.4 24.6 115 23.8 25.0 95 MADISON PLATEAU 7750 -M 16.4 * 20.7 17.6 118 NORTHEAST ENTRANCE 7350 8.9 6.5 137 10.7 8.4 127 PARKER PEAK 9400 17.0 14.6 116 -M 10.7 * SYLVAN LAKE 8420 19.1 15.2 126 21.1 13.4 157 THUMB DIVIDE 7980 15.3 11.6 132 15.0 15.6 96 TWO OCEAN PLATEAU 9360 24.6 18.6 132 21.1 22.9 92 WHISKEY CREEK 6800 13.9 11.4 122 16.6 14.7 113 WHITE MILL 8700 18.9 17.2 110 17.0 19.6 87 WOLVERINE 7650 11.2 8.1 138 10.1 9.0 112 ----- ----- Basin wide percent of average 125 111 WIND RIVER BURROUGHS CREEK 8750 12.0 10.6 113 13.1 11.5 114 COLD SPRINGS 9630 6.5 5.9 110 8.3 7.0 119 DEER PARK 9700 9.8 -M * 13.7 -M * HOBBS PARK 10100 10.9 10.1 108 10.5 9.3 113 LITTLE WARM 9620 8.9 7.3 122 10.0 9.0 111 SOUTH PASS 9040 11.2 11.5 97 12.6 11.0 115 ST. LAWRENCE ALT 8620 4.5 4.9 92 7.3 6.4 114 TOGWOTEE PASS 9580 -M 17.2 * 19.9 20.4 98 TOWNSEND CREEK 8700 5.8 6.3 92 8.3 7.9 105 ----- ----- Basin wide percent of average 106 109 BIGHORN BASIN BALD MTN. 9375 14.1 14.0 101 13.2 11.9 111 BEAR TRAP MEADOW 7900 4.5 4.9 92 6.9 5.5 125 BLACKWATER 9780 21.4 14.3 150 18.4 12.4 148 BONE SPRINGS DIV 9350 11.2 10.8 104 11.3 9.6 118 EVENING STAR 9200 24.6 18.2 135 24.9 15.6 160 GRAVE SPRINGS 8550 4.8 6.2 77 7.8 6.5 120 KIRWIN 9550 8.3 6.7 124 9.5 6.9 138 MARQUETTE 8760 6.1 5.2 117 6.9 5.9 117 MIDDLE POWDER 7760 5.0 7.9 63 11.0 7.9 139 OWL CREEK 8975 4.2 2.9 145 4.9 3.9 126 POWDER RIVER PASS 9480 8.4 7.1 118 10.4 7.9 132 SHELL CREEK 9580 12.2 10.4 117 10.9 9.0 121 SYLVAN LAKE 8420 19.1 15.2 126 21.1 13.4 157 SYLVAN ROAD 8120 12.6 8.7 145 14.6 11.3 129 TIMBER CREEK 7950 3.8 3.7 103 5.6 4.3 130 YOUNTS PEAK 8350 15.3 12.4 123 13.4 11.5 117 ----- ----- Basin wide percent of average 118 133 SHOSHONE RIVER BLACKWATER 9780 21.4 14.3 150 18.4 12.4 148 EVENING STAR 9200 24.6 18.2 135 24.9 15.6 160 KIRWIN 9550 8.3 6.7 124 9.5 6.9 138 MARQUETTE 8760 6.1 5.2 117 6.9 5.9 117 SYLVAN LAKE 8420 19.1 15.2 126 21.1 13.4 157 SYLVAN ROAD 8120 12.6 8.7 145 14.6 11.3 129 YOUNTS PEAK 8350 15.3 12.4 123 13.4 11.5 117 ----- ----- Basin wide percent of average 133 141 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.5 4.9 92 6.9 5.5 125 BIG GOOSE 7990 3.9 -M * 6.7 -M * BONE SPRINGS DIV 9350 11.2 10.8 104 11.3 9.6 118 BURGESS JUNCTION 7880 5.5 7.7 71 7.4 7.2 103 CLOUD PEAK RESERVOIR 9860 9.8 8.2 120 8.5 8.3 102 DOME LAKE 8880 5.7 9.2 62 7.1 8.8 81 GRAVE SPRINGS 8550 4.8 6.2 77 7.8 6.5 120 HANSEN SAWMILL 8760 3.8 4.7 81 5.9 5.1 116 MIDDLE POWDER 7760 5.0 7.9 63 11.0 7.9 139 POWDER RIVER PASS 9480 8.4 7.1 118 10.4 7.9 132 SUCKER CREEK 8880 6.9 7.7 90 8.8 8.7 101 TIE CREEK 6870 2.4 -M * 6.0 6.9 87 ----- ----- Basin wide percent of average 88 111 BELLE FOURCHE BLIND PARK 6890 5.3 7.3 73 12.3 6.2 198 NORTH RAPID CREEK 6130 4.0 -M * 10.7 -M * WARREN PEAK 6520 6.0 7.3 82 10.9 5.3 206 ----- ----- Basin wide percent of average 77 202 UPPER N. PLATTE RIVER COLUMBINE 9400 14.2 16.2 88 15.6 16.7 93 DIVIDE PEAK 8800 12.9 13.6 95 18.4 16.3 113 ELK RIVER 8700 -M 12.8 * 16.8 12.7 132 JOE WRIGHT 10120 14.7 14.3 103 19.9 16.8 118 NORTH FRENCH CREEK 10100 20.3 16.3 125 20.1 15.4 131 OLD BATTLE 10000 18.5 20.9 89 24.5 19.8 124 SOUTH BRUSH CREEK 8400 5.3 7.3 73 14.9 10.9 137 TOWER 10500 28.7 30.5 94 26.8 24.5 109 WEBBER SPRINGS 9200 12.7 17.8 71 18.0 16.9 107 WILLOW CREEK PASS 9540 8.1 7.4 109 9.4 8.0 118 ----- ----- Basin wide percent of average 94 117 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.8 16.3 85 16.0 12.3 130 CASPER MTN. 7900 7.0 9.6 73 12.3 8.8 140 DEADMAN HILL 10220 13.2 11.3 117 13.4 10.5 128 DEER PARK 9700 9.8 -M * 13.7 -M * LAPRELE CREEK 8320 2.5 6.7 37 10.0 7.7 130 RENO HILL 8400 8.9 8.5 105 13.3 11.6 115 ROACH 9700 12.7 11.2 113 15.1 14.4 105 SAND LAKE 10080 22.5 21.6 104 20.8 13.2 158 SOUTH PASS 9040 11.2 11.5 97 12.6 11.0 115 WINDY PEAK 7840 3.5 4.6 76 9.3 6.0 155 ----- ----- Basin wide percent of average 94 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.9 7.5 119 12.7 11.0 115 DIVIDE PEAK 8800 12.9 13.6 95 18.4 16.3 113 OLD BATTLE 10000 18.5 20.9 89 24.5 19.8 124 SANDSTONE RS 8150 8.3 9.5 87 14.9 13.5 110 WHISKEY PARK 8950 17.2 18.8 91 20.8 20.2 103 ----- ----- Basin wide percent of average 94 113 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.8 9.8 110 9.8 12.1 81 BLIND BULL SUM 8650 18.5 19.4 95 15.3 17.1 89 EAST RIM DIVIDE 7930 8.8 9.5 93 9.2 11.3 81 ELKHART PARK G.S. 9400 8.9 9.1 98 9.5 11.9 80 GROS VENTRE SUMMIT 8775 9.6 10.8 89 9.6 11.8 81 KENDALL R.S. 7740 9.6 10.1 95 10.2 11.5 89 LOOMIS PARK 8240 -M 11.9 * 13.3 14.0 95 NEW FORK LAKE 8340 7.9 8.0 99 8.0 10.8 74 SNIDER BASIN 8250 9.2 10.1 91 9.6 11.3 85 SPRING CREEK DIVIDE 9000 17.0 18.6 91 17.5 19.7 89 TRIPLE PEAK 8500 16.6 17.7 94 17.8 23.1 77 ----- ----- Basin wide percent of average 95 84 LOWER GREEN RIVER HAMS FORK 7840 7.5 8.3 90 7.1 10.0 71 HEWINTA 9500 6.1 6.4 95 9.2 8.5 108 HICKERSON PARK 9150 4.0 3.6 111 6.8 6.1 111 HOLE-IN-ROCK 9150 4.5 3.3 136 7.2 6.1 118 INDIAN CREEK 9425 16.8 18.3 92 14.2 18.6 76 KELLEY R.S. 8180 9.9 11.0 90 11.6 13.9 83 STEEL CREEK PARK 10100 8.9 10.0 89 10.9 8.7 125 ----- ----- Basin wide percent of average 95 93 UPPER BEAR RIVER BUG LAKE 7950 11.4 13.2 86 11.5 13.0 88 HAYDEN FORK 9400 8.5 10.5 81 12.5 12.1 103 KELLEY R.S. 8180 9.9 11.0 90 11.6 13.9 83 LILY LAKE 9050 -M 8.3 * -M 9.7 * MONTE CRISTO 8960 -M 17.7 * -M 16.8 * SALT RIVER SUMMIT 7600 8.9 9.2 97 11.2 12.5 90 TRIAL LAKE 9960 10.9 16.1 68 12.1 15.5 78 ----- ----- Basin wide percent of average 83 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.