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 9 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 17.6 13.4 131 -M 17.4 * COTTONWOOD CREEK 7600 16.8 15.4 109 19.7 18.7 105 GRANITE CREEK 6770 15.1 13.2 114 17.2 18.3 94 GRASSY LAKE 7265 29.8 26.9 111 29.8 28.1 106 GROS VENTRE SUMMIT 8775 11.5 11.2 103 11.4 12.3 93 LEWIS LAKE DIVIDE 7860 28.9 24.9 116 27.8 28.6 97 PHILLIPS BENCH 8200 22.7 20.9 109 21.8 22.7 96 SALT RIVER SUMMIT 7600 11.7 9.9 118 13.7 13.1 105 SNAKE RIVER STATION 6920 15.9 13.6 117 19.3 19.8 97 SPRING CREEK DIVIDE 9000 20.9 19.6 107 20.0 20.7 97 THUMB DIVIDE 7980 17.4 12.3 141 16.9 16.3 104 TOGWOTEE PASS 9580 -M 18.0 * 22.0 21.4 103 TWO OCEAN PLATEAU 9360 27.4 19.5 141 22.5 24.0 94 WILLOW CREEK 8450 23.5 22.6 104 27.8 24.5 113 ----- ----- Basin wide percent of average 116 101 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 20.4 17.1 119 17.8 13.0 137 BLACK BEAR 7950 36.8 26.7 138 -M 28.6 * CANYON 7940 13.7 9.0 152 14.4 10.5 137 FISHER CREEK 9100 30.4 26.0 117 24.2 26.3 92 MADISON PLATEAU 7750 -M 17.5 * 22.9 18.6 123 NORTHEAST ENTRANCE 7350 9.3 6.9 135 11.1 8.8 126 PARKER PEAK 9400 18.2 15.4 118 -M 11.2 * SYLVAN LAKE 8420 20.3 16.0 127 22.3 14.1 158 THUMB DIVIDE 7980 17.4 12.3 141 16.9 16.3 104 TWO OCEAN PLATEAU 9360 27.4 19.5 141 22.5 24.0 94 WHISKEY CREEK 6800 15.6 12.1 129 18.1 15.4 118 WHITE MILL 8700 19.9 18.2 109 17.9 20.6 87 WOLVERINE 7650 11.9 8.6 138 10.6 9.4 113 ----- ----- Basin wide percent of average 128 112 WIND RIVER BURROUGHS CREEK 8750 13.7 11.3 121 14.8 12.1 122 COLD SPRINGS 9630 7.4 6.1 121 9.1 7.3 125 DEER PARK 9700 12.0 -M * 16.4 -M * HOBBS PARK 10100 12.9 10.6 122 12.2 9.8 124 LITTLE WARM 9620 10.6 7.8 136 11.8 9.4 126 SOUTH PASS 9040 13.4 12.1 111 14.7 11.7 126 ST. LAWRENCE ALT 8620 5.5 5.2 106 8.3 6.8 122 TOGWOTEE PASS 9580 -M 18.0 * 22.0 21.4 103 TOWNSEND CREEK 8700 6.9 6.7 103 9.5 8.4 113 ----- ----- Basin wide percent of average 118 118 BIGHORN BASIN BALD MTN. 9375 14.3 14.8 97 13.3 12.4 107 BEAR TRAP MEADOW 7900 4.6 5.1 90 7.1 5.7 125 BLACKWATER 9780 23.3 15.1 154 19.6 13.1 150 BONE SPRINGS DIV 9350 11.3 11.4 99 11.4 10.1 113 EVENING STAR 9200 26.4 19.3 137 26.7 16.4 163 GRAVE SPRINGS 8550 4.9 6.5 75 7.9 6.7 118 KIRWIN 9550 9.7 7.0 139 11.4 7.3 156 MARQUETTE 8760 6.2 5.6 111 7.0 6.2 113 MIDDLE POWDER 7760 5.0 8.3 60 11.1 8.2 135 OWL CREEK 8975 4.7 3.0 157 5.3 4.1 129 POWDER RIVER PASS 9480 9.0 7.5 120 11.1 8.3 134 SHELL CREEK 9580 12.4 10.9 114 11.0 9.4 117 SYLVAN LAKE 8420 20.3 16.0 127 22.3 14.1 158 SYLVAN ROAD 8120 13.5 9.3 145 15.4 11.8 131 TIMBER CREEK 7950 3.9 4.0 98 5.7 4.5 127 YOUNTS PEAK 8350 17.1 12.9 133 14.9 12.0 124 ----- ----- Basin wide percent of average 119 134 SHOSHONE RIVER BLACKWATER 9780 23.3 15.1 154 19.6 13.1 150 EVENING STAR 9200 26.4 19.3 137 26.7 16.4 163 KIRWIN 9550 9.7 7.0 139 11.4 7.3 156 MARQUETTE 8760 6.2 5.6 111 7.0 6.2 113 SYLVAN LAKE 8420 20.3 16.0 127 22.3 14.1 158 SYLVAN ROAD 8120 13.5 9.3 145 15.4 11.8 131 YOUNTS PEAK 8350 17.1 12.9 133 14.9 12.0 124 ----- ----- Basin wide percent of average 137 145 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.6 5.1 90 7.1 5.7 125 BIG GOOSE 7990 4.1 -M * 6.9 -M * BONE SPRINGS DIV 9350 11.3 11.4 99 11.4 10.1 113 BURGESS JUNCTION 7880 5.7 8.2 70 7.6 7.5 101 CLOUD PEAK RESERVOIR 9860 10.4 8.9 117 8.9 8.7 102 DOME LAKE 8880 6.0 9.6 63 7.8 9.2 85 GRAVE SPRINGS 8550 4.9 6.5 75 7.9 6.7 118 HANSEN SAWMILL 8760 4.0 4.9 82 6.6 5.3 125 MIDDLE POWDER 7760 5.0 8.3 60 11.1 8.2 135 POWDER RIVER PASS 9480 9.0 7.5 120 11.1 8.3 134 SUCKER CREEK 8880 7.0 8.2 85 9.0 9.1 99 TIE CREEK 6870 2.3 -M * 6.0 7.2 83 ----- ----- Basin wide percent of average 86 110 BELLE FOURCHE BLIND PARK 6890 5.4 7.8 69 12.4 6.5 191 NORTH RAPID CREEK 6130 4.1 -M * 10.8 -M * WARREN PEAK 6520 6.0 7.8 77 10.9 5.5 198 ----- ----- Basin wide percent of average 73 194 UPPER N. PLATTE RIVER COLUMBINE 9400 15.1 17.3 87 16.6 17.6 94 DIVIDE PEAK 8800 14.5 14.3 101 20.0 16.8 119 ELK RIVER 8700 -M 13.8 * 18.2 13.4 136 JOE WRIGHT 10120 15.3 15.0 102 20.7 17.6 118 NORTH FRENCH CREEK 10100 21.5 17.3 124 20.3 16.2 125 OLD BATTLE 10000 20.7 22.2 93 27.2 20.9 130 SOUTH BRUSH CREEK 8400 5.6 7.7 73 15.1 11.3 134 TOWER 10500 31.6 32.2 98 30.3 25.8 117 WEBBER SPRINGS 9200 14.0 18.9 74 19.5 17.8 110 WILLOW CREEK PASS 9540 8.8 7.9 111 10.0 8.4 119 ----- ----- Basin wide percent of average 96 119 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.1 17.1 88 16.9 13.1 129 CASPER MTN. 7900 7.3 10.2 72 12.7 9.2 138 DEADMAN HILL 10220 13.9 11.8 118 14.0 11.1 126 DEER PARK 9700 12.0 -M * 16.4 -M * LAPRELE CREEK 8320 1.9 7.1 27 10.5 8.0 131 RENO HILL 8400 9.1 9.0 101 13.4 12.3 109 ROACH 9700 13.2 11.9 111 15.6 15.1 103 SAND LAKE 10080 24.5 22.9 107 21.8 14.0 156 SOUTH PASS 9040 13.4 12.1 111 14.7 11.7 126 WINDY PEAK 7840 4.0 5.0 80 9.7 6.2 156 ----- ----- Basin wide percent of average 96 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.4 8.0 130 13.8 11.4 121 DIVIDE PEAK 8800 14.5 14.3 101 20.0 16.8 119 OLD BATTLE 10000 20.7 22.2 93 27.2 20.9 130 SANDSTONE RS 8150 9.6 10.2 94 16.2 13.9 117 WHISKEY PARK 8950 18.8 19.9 94 22.4 20.7 108 ----- ----- Basin wide percent of average 99 119 UPPER GREEN RIVER BIG SANDY OPENING 9100 12.4 10.2 122 11.6 12.6 92 BLIND BULL SUM 8650 21.8 20.6 106 17.6 18.0 98 EAST RIM DIVIDE 7930 10.5 10.0 105 10.8 11.8 92 ELKHART PARK G.S. 9400 10.6 9.8 108 11.1 12.4 90 GROS VENTRE SUMMIT 8775 11.5 11.2 103 11.4 12.3 93 KENDALL R.S. 7740 12.1 10.6 114 12.4 12.0 103 LOOMIS PARK 8240 -M 12.6 * 15.8 14.7 107 NEW FORK LAKE 8340 9.8 8.5 115 9.7 11.3 86 SNIDER BASIN 8250 11.9 10.7 111 12.2 11.8 103 SPRING CREEK DIVIDE 9000 20.9 19.6 107 20.0 20.7 97 TRIPLE PEAK 8500 19.3 18.7 103 20.5 24.2 85 ----- ----- Basin wide percent of average 108 95 LOWER GREEN RIVER HAMS FORK 7840 9.6 8.8 109 8.4 10.4 81 HEWINTA 9500 6.6 6.8 97 9.4 8.9 106 HICKERSON PARK 9150 4.0 4.0 100 6.8 6.3 108 HOLE-IN-ROCK 9150 4.5 3.6 125 7.2 6.3 114 INDIAN CREEK 9425 21.1 19.4 109 17.8 19.5 91 KELLEY R.S. 8180 12.6 11.8 107 14.2 14.6 97 STEEL CREEK PARK 10100 9.3 10.4 89 11.4 9.1 125 ----- ----- Basin wide percent of average 104 100 UPPER BEAR RIVER BUG LAKE 7950 14.8 14.0 106 14.3 13.7 104 HAYDEN FORK 9400 9.6 11.2 86 13.2 12.8 103 KELLEY R.S. 8180 12.6 11.8 107 14.2 14.6 97 LILY LAKE 9050 9.1 8.9 102 12.6 10.1 125 MONTE CRISTO 8960 18.2 18.8 97 19.3 17.7 109 SALT RIVER SUMMIT 7600 11.7 9.9 118 13.7 13.1 105 TRIAL LAKE 9960 13.9 17.2 81 14.9 16.5 90 ----- ----- Basin wide percent of average 98 104 ----------------------------------------------------------------------------- -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.