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 SATURDAY: FEBRUARY 6 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 16.3 13.1 124 16.7 17.0 98 COTTONWOOD CREEK 7600 15.3 14.9 103 18.5 18.2 102 GRANITE CREEK 6770 13.3 12.9 103 15.4 17.9 86 GRASSY LAKE 7265 28.7 25.4 113 28.8 27.5 105 GROS VENTRE SUMMIT 8775 9.7 11.0 88 9.9 12.1 82 LEWIS LAKE DIVIDE 7860 26.9 24.1 112 27.0 28.0 96 PHILLIPS BENCH 8200 21.1 20.3 104 20.7 22.2 93 SALT RIVER SUMMIT 7600 9.7 9.6 101 12.0 12.8 94 SNAKE RIVER STATION 6920 15.1 13.2 114 18.6 19.4 96 SPRING CREEK DIVIDE 9000 18.2 19.1 95 18.6 20.2 92 THUMB DIVIDE 7980 -M 11.9 * -M 15.9 * TOGWOTEE PASS 9580 -M 17.6 * 20.5 20.9 98 TWO OCEAN PLATEAU 9360 25.1 19.1 131 21.5 23.4 92 WILLOW CREEK 8450 21.2 22.0 96 25.4 23.8 107 ----- ----- Basin wide percent of average 108 96 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.3 16.7 116 17.2 12.6 137 BLACK BEAR 7950 33.1 25.9 128 -M 27.8 * CANYON 7940 12.6 8.7 145 13.4 10.3 130 FISHER CREEK 9100 28.5 25.3 113 23.9 25.7 93 MADISON PLATEAU 7750 -M 17.0 * 20.7 18.1 114 NORTHEAST ENTRANCE 7350 8.9 6.7 133 10.8 8.6 126 PARKER PEAK 9400 17.0 15.0 113 -M 11.0 * SYLVAN LAKE 8420 19.2 15.6 123 21.3 13.8 154 THUMB DIVIDE 7980 -M 11.9 * -M 15.9 * TWO OCEAN PLATEAU 9360 25.1 19.1 131 21.5 23.4 92 WHISKEY CREEK 6800 14.0 11.8 119 16.7 15.0 111 WHITE MILL 8700 19.0 17.7 107 17.1 20.1 85 WOLVERINE 7650 11.0 8.3 133 10.1 9.2 110 ----- ----- Basin wide percent of average 122 110 WIND RIVER BURROUGHS CREEK 8750 12.3 10.9 113 13.4 11.8 114 COLD SPRINGS 9630 6.7 6.0 112 8.4 7.2 117 DEER PARK 9700 10.2 -M * 14.5 -M * HOBBS PARK 10100 11.2 10.4 108 10.7 9.6 111 LITTLE WARM 9620 9.2 7.6 121 10.3 9.2 112 SOUTH PASS 9040 11.8 11.8 100 13.2 11.3 117 ST. LAWRENCE ALT 8620 4.8 5.1 94 7.5 6.6 114 TOGWOTEE PASS 9580 -M 17.6 * 20.5 20.9 98 TOWNSEND CREEK 8700 5.7 6.5 88 8.3 8.2 101 ----- ----- Basin wide percent of average 106 109 BIGHORN BASIN BALD MTN. 9375 14.2 14.4 99 13.3 12.1 110 BEAR TRAP MEADOW 7900 4.6 5.0 92 7.0 5.6 125 BLACKWATER 9780 21.5 14.7 146 18.6 12.7 146 BONE SPRINGS DIV 9350 11.2 11.1 101 11.3 9.8 115 EVENING STAR 9200 24.9 18.7 133 25.4 16.0 159 GRAVE SPRINGS 8550 4.9 6.4 77 7.9 6.6 120 KIRWIN 9550 8.3 6.9 120 9.8 7.1 138 MARQUETTE 8760 6.1 5.4 113 6.8 6.0 113 MIDDLE POWDER 7760 5.0 8.1 62 11.0 8.1 136 OWL CREEK 8975 4.1 2.9 141 4.8 4.0 120 POWDER RIVER PASS 9480 8.6 7.3 118 10.7 8.1 132 SHELL CREEK 9580 12.3 10.7 115 11.0 9.2 120 SYLVAN LAKE 8420 19.2 15.6 123 21.3 13.8 154 SYLVAN ROAD 8120 12.6 9.0 140 14.6 11.5 127 TIMBER CREEK 7950 3.7 3.9 95 5.6 4.4 127 YOUNTS PEAK 8350 15.4 12.7 121 13.5 11.8 114 ----- ----- Basin wide percent of average 116 131 SHOSHONE RIVER BLACKWATER 9780 21.5 14.7 146 18.6 12.7 146 EVENING STAR 9200 24.9 18.7 133 25.4 16.0 159 KIRWIN 9550 8.3 6.9 120 9.8 7.1 138 MARQUETTE 8760 6.1 5.4 113 6.8 6.0 113 SYLVAN LAKE 8420 19.2 15.6 123 21.3 13.8 154 SYLVAN ROAD 8120 12.6 9.0 140 14.6 11.5 127 YOUNTS PEAK 8350 15.4 12.7 121 13.5 11.8 114 ----- ----- Basin wide percent of average 130 139 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.6 5.0 92 7.0 5.6 125 BIG GOOSE 7990 4.0 -M * 6.8 -M * BONE SPRINGS DIV 9350 11.2 11.1 101 11.3 9.8 115 BURGESS JUNCTION 7880 5.5 8.0 69 7.5 7.4 101 CLOUD PEAK RESERVOIR 9860 9.9 8.6 115 8.3 8.5 98 DOME LAKE 8880 5.8 9.4 62 7.7 9.0 86 GRAVE SPRINGS 8550 4.9 6.4 77 7.9 6.6 120 HANSEN SAWMILL 8760 3.7 4.8 77 6.0 5.2 115 MIDDLE POWDER 7760 5.0 8.1 62 11.0 8.1 136 POWDER RIVER PASS 9480 8.6 7.3 118 10.7 8.1 132 SUCKER CREEK 8880 6.9 7.9 87 8.9 8.9 100 TIE CREEK 6870 2.3 -M * 6.0 7.0 86 ----- ----- Basin wide percent of average 86 110 BELLE FOURCHE BLIND PARK 6890 5.4 7.6 71 12.4 6.4 194 NORTH RAPID CREEK 6130 4.1 -M * 10.7 -M * WARREN PEAK 6520 5.9 7.6 78 10.9 5.4 202 ----- ----- Basin wide percent of average 74 197 UPPER N. PLATTE RIVER COLUMBINE 9400 14.7 16.7 88 16.2 17.1 95 DIVIDE PEAK 8800 14.1 13.9 101 19.6 16.6 118 ELK RIVER 8700 -M 13.3 * 17.6 13.0 135 JOE WRIGHT 10120 15.0 14.6 103 20.4 17.2 119 NORTH FRENCH CREEK 10100 20.8 16.8 124 20.3 15.8 128 OLD BATTLE 10000 20.1 21.5 93 26.4 20.3 130 SOUTH BRUSH CREEK 8400 5.2 7.5 69 15.0 11.1 135 TOWER 10500 30.7 31.4 98 27.1 25.2 108 WEBBER SPRINGS 9200 13.6 18.3 74 18.9 17.3 109 WILLOW CREEK PASS 9540 8.5 7.7 110 9.6 8.2 117 ----- ----- Basin wide percent of average 96 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.5 16.7 87 16.5 12.7 130 CASPER MTN. 7900 7.2 9.9 73 12.6 9.0 140 DEADMAN HILL 10220 13.4 11.6 116 13.8 10.8 128 DEER PARK 9700 10.2 -M * 14.5 -M * LAPRELE CREEK 8320 2.4 6.9 35 10.3 7.9 130 RENO HILL 8400 9.1 8.7 105 13.4 12.0 112 ROACH 9700 13.0 11.5 113 15.4 14.8 104 SAND LAKE 10080 23.6 22.2 106 21.3 13.6 157 SOUTH PASS 9040 11.8 11.8 100 13.2 11.3 117 WINDY PEAK 7840 3.8 4.8 79 9.6 6.1 157 ----- ----- Basin wide percent of average 95 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.3 7.7 134 13.3 11.2 119 DIVIDE PEAK 8800 14.1 13.9 101 19.6 16.6 118 OLD BATTLE 10000 20.1 21.5 93 26.4 20.3 130 SANDSTONE RS 8150 9.5 9.8 97 15.9 13.7 116 WHISKEY PARK 8950 18.4 19.3 95 21.9 20.4 107 ----- ----- Basin wide percent of average 100 118 UPPER GREEN RIVER BIG SANDY OPENING 9100 11.6 10.0 116 10.8 12.4 87 BLIND BULL SUM 8650 19.2 20.0 96 15.7 17.6 89 EAST RIM DIVIDE 7930 9.3 9.8 95 9.7 11.5 84 ELKHART PARK G.S. 9400 9.6 9.4 102 10.1 12.2 83 GROS VENTRE SUMMIT 8775 9.7 11.0 88 9.9 12.1 82 KENDALL R.S. 7740 10.1 10.4 97 10.7 11.8 91 LOOMIS PARK 8240 -M 12.2 * 13.9 14.3 97 NEW FORK LAKE 8340 8.6 8.3 104 8.7 11.0 79 SNIDER BASIN 8250 10.0 10.4 96 10.4 11.5 90 SPRING CREEK DIVIDE 9000 18.2 19.1 95 18.6 20.2 92 TRIPLE PEAK 8500 17.1 18.2 94 18.7 23.6 79 ----- ----- Basin wide percent of average 97 87 LOWER GREEN RIVER HAMS FORK 7840 8.1 8.6 94 7.6 10.2 75 HEWINTA 9500 6.1 6.6 92 9.3 8.7 107 HICKERSON PARK 9150 3.9 3.8 103 6.7 6.2 108 HOLE-IN-ROCK 9150 4.5 3.5 129 7.2 6.2 116 INDIAN CREEK 9425 17.8 18.9 94 15.1 19.1 79 KELLEY R.S. 8180 10.7 11.4 94 12.4 14.3 87 STEEL CREEK PARK 10100 8.8 10.2 86 11.0 8.9 124 ----- ----- Basin wide percent of average 95 94 UPPER BEAR RIVER BUG LAKE 7950 12.0 13.6 88 11.9 13.4 89 HAYDEN FORK 9400 8.6 10.8 80 12.6 12.5 101 KELLEY R.S. 8180 10.7 11.4 94 12.4 14.3 87 LILY LAKE 9050 8.4 8.6 98 11.9 9.9 120 MONTE CRISTO 8960 15.5 18.2 85 16.8 17.3 97 SALT RIVER SUMMIT 7600 9.7 9.6 101 12.0 12.8 94 TRIAL LAKE 9960 11.1 16.7 66 12.3 16.0 77 ----- ----- 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.