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 SUNDAY: FEBRUARY 14 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 18.6 14.0 133 -M 18.1 * COTTONWOOD CREEK 7600 17.9 16.2 110 20.6 19.6 105 GRANITE CREEK 6770 -M 13.8 * -M 19.0 * GRASSY LAKE 7265 30.9 29.3 105 30.6 29.2 105 GROS VENTRE SUMMIT 8775 12.5 11.6 108 12.3 12.8 96 LEWIS LAKE DIVIDE 7860 30.1 26.1 115 28.3 29.7 95 PHILLIPS BENCH 8200 24.3 21.8 111 23.1 23.5 98 SALT RIVER SUMMIT 7600 12.3 10.5 117 14.4 13.6 106 SNAKE RIVER STATION 6920 16.7 14.4 116 20.0 20.6 97 SPRING CREEK DIVIDE 9000 22.0 20.5 107 22.0 21.6 102 THUMB DIVIDE 7980 18.5 12.8 145 17.8 16.9 105 TOGWOTEE PASS 9580 -M 18.8 * 23.1 22.2 104 TWO OCEAN PLATEAU 9360 28.9 20.2 143 23.3 24.9 94 WILLOW CREEK 8450 24.8 23.6 105 28.6 25.5 112 ----- ----- Basin wide percent of average 117 102 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 21.0 17.9 117 18.9 13.5 140 BLACK BEAR 7950 39.1 28.0 140 -M 29.8 * CANYON 7940 14.6 9.4 155 15.2 10.9 139 FISHER CREEK 9100 31.8 27.1 117 -M 27.4 * MADISON PLATEAU 7750 -M 18.3 * 23.8 19.4 123 NORTHEAST ENTRANCE 7350 9.7 7.2 135 11.4 9.2 124 PARKER PEAK 9400 18.6 16.1 116 -M 11.7 * SYLVAN LAKE 8420 21.1 16.7 126 23.0 14.6 158 THUMB DIVIDE 7980 18.5 12.8 145 17.8 16.9 105 TWO OCEAN PLATEAU 9360 28.9 20.2 143 23.3 24.9 94 WHISKEY CREEK 6800 16.6 12.7 131 19.1 16.1 119 WHITE MILL 8700 20.9 19.1 109 18.9 21.4 88 WOLVERINE 7650 12.0 9.0 133 10.9 9.8 111 ----- ----- Basin wide percent of average 129 116 WIND RIVER BURROUGHS CREEK 8750 14.0 11.8 119 15.3 12.6 121 COLD SPRINGS 9630 8.1 6.4 127 9.9 7.6 130 DEER PARK 9700 14.4 -M * 18.6 -M * HOBBS PARK 10100 14.4 10.9 132 13.4 10.1 133 LITTLE WARM 9620 11.3 8.1 140 12.5 9.8 128 SOUTH PASS 9040 15.3 12.6 121 16.4 12.2 134 ST. LAWRENCE ALT 8620 6.3 5.5 115 9.1 7.1 128 TOGWOTEE PASS 9580 -M 18.8 * 23.1 22.2 104 TOWNSEND CREEK 8700 8.5 7.0 121 11.1 8.7 128 ----- ----- Basin wide percent of average 125 123 BIGHORN BASIN BALD MTN. 9375 14.9 15.4 97 14.1 12.8 110 BEAR TRAP MEADOW 7900 5.2 5.4 96 7.6 5.8 131 BLACKWATER 9780 24.4 15.9 153 20.5 13.6 151 BONE SPRINGS DIV 9350 12.2 11.9 103 12.5 10.5 119 EVENING STAR 9200 27.4 20.2 136 27.6 17.0 162 GRAVE SPRINGS 8550 5.7 6.8 84 8.5 6.9 123 KIRWIN 9550 10.5 7.2 146 12.1 7.6 159 MARQUETTE 8760 6.8 5.8 117 7.7 6.4 120 MIDDLE POWDER 7760 6.4 8.6 74 12.0 8.5 141 OWL CREEK 8975 5.4 3.2 169 6.1 4.3 142 POWDER RIVER PASS 9480 9.7 7.8 124 11.8 8.5 139 SHELL CREEK 9580 13.1 11.4 115 12.5 9.7 129 SYLVAN LAKE 8420 21.1 16.7 126 23.0 14.6 158 SYLVAN ROAD 8120 14.0 9.8 143 16.0 12.3 130 TIMBER CREEK 7950 4.5 4.2 107 6.2 4.6 135 YOUNTS PEAK 8350 17.5 13.4 131 15.4 12.5 123 ----- ----- Basin wide percent of average 121 137 SHOSHONE RIVER BLACKWATER 9780 24.4 15.9 153 20.5 13.6 151 EVENING STAR 9200 27.4 20.2 136 27.6 17.0 162 KIRWIN 9550 10.5 7.2 146 12.1 7.6 159 MARQUETTE 8760 6.8 5.8 117 7.7 6.4 120 SYLVAN LAKE 8420 21.1 16.7 126 23.0 14.6 158 SYLVAN ROAD 8120 14.0 9.8 143 16.0 12.3 130 YOUNTS PEAK 8350 17.5 13.4 131 15.4 12.5 123 ----- ----- Basin wide percent of average 137 146 POWDER-TONGUE BEAR TRAP MEADOW 7900 5.2 5.4 96 7.6 5.8 131 BIG GOOSE 7990 4.7 -M * 7.8 -M * BONE SPRINGS DIV 9350 12.2 11.9 103 12.5 10.5 119 BURGESS JUNCTION 7880 6.4 8.5 75 8.2 7.8 105 CLOUD PEAK RESERVOIR 9860 11.4 9.5 120 10.0 9.1 110 DOME LAKE 8880 6.6 10.0 66 8.6 9.5 91 GRAVE SPRINGS 8550 5.7 6.8 84 8.5 6.9 123 HANSEN SAWMILL 8760 4.6 5.2 88 6.8 5.5 124 MIDDLE POWDER 7760 6.4 8.6 74 12.0 8.5 141 POWDER RIVER PASS 9480 9.7 7.8 124 11.8 8.5 139 SUCKER CREEK 8880 7.9 8.6 92 10.3 9.5 108 TIE CREEK 6870 2.6 -M * 6.3 7.5 84 ----- ----- Basin wide percent of average 92 115 BELLE FOURCHE BLIND PARK 6890 5.5 8.1 68 12.5 6.8 184 NORTH RAPID CREEK 6130 4.3 -M * 11.0 -M * WARREN PEAK 6520 6.5 8.1 80 11.1 5.7 195 ----- ----- Basin wide percent of average 74 189 UPPER N. PLATTE RIVER COLUMBINE 9400 15.5 18.2 85 16.7 18.3 91 DIVIDE PEAK 8800 15.4 15.0 103 20.6 17.3 119 ELK RIVER 8700 -M 14.6 * 18.1 13.9 130 JOE WRIGHT 10120 15.8 15.7 101 21.2 18.2 116 NORTH FRENCH CREEK 10100 22.3 18.0 124 23.2 16.9 137 OLD BATTLE 10000 21.5 23.2 93 27.8 21.8 128 SOUTH BRUSH CREEK 8400 5.4 8.1 67 16.1 11.7 138 TOWER 10500 32.7 33.5 98 31.0 26.8 116 WEBBER SPRINGS 9200 14.6 19.8 74 20.3 18.5 110 WILLOW CREEK PASS 9540 9.4 8.2 115 10.0 8.8 114 ----- ----- Basin wide percent of average 96 119 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.5 17.8 87 17.1 13.7 125 CASPER MTN. 7900 8.3 10.7 78 13.3 9.6 139 DEADMAN HILL 10220 12.6 12.3 102 14.2 11.6 122 DEER PARK 9700 14.4 -M * 18.6 -M * LAPRELE CREEK 8320 .8 7.4 11 10.9 8.3 131 RENO HILL 8400 9.7 9.4 103 14.3 12.9 111 ROACH 9700 13.6 12.4 110 16.0 15.6 103 SAND LAKE 10080 24.9 23.9 104 22.2 14.6 152 SOUTH PASS 9040 15.3 12.6 121 16.4 12.2 134 WINDY PEAK 7840 4.1 5.2 79 10.3 6.5 158 ----- ----- Basin wide percent of average 94 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.6 8.4 126 14.8 11.7 126 DIVIDE PEAK 8800 15.4 15.0 103 20.6 17.3 119 OLD BATTLE 10000 21.5 23.2 93 27.8 21.8 128 SANDSTONE RS 8150 9.9 10.7 93 16.8 14.3 117 WHISKEY PARK 8950 19.5 20.8 94 22.8 21.2 108 ----- ----- Basin wide percent of average 98 119 UPPER GREEN RIVER BIG SANDY OPENING 9100 13.3 10.6 125 12.3 13.1 94 BLIND BULL SUM 8650 22.8 21.6 106 18.2 18.8 97 EAST RIM DIVIDE 7930 11.1 10.5 106 11.4 12.3 93 ELKHART PARK G.S. 9400 11.3 10.3 110 11.8 12.9 91 GROS VENTRE SUMMIT 8775 12.5 11.6 108 12.3 12.8 96 KENDALL R.S. 7740 12.7 11.1 114 12.8 12.5 102 LOOMIS PARK 8240 -M 13.3 * 16.4 15.2 108 NEW FORK LAKE 8340 10.3 8.8 117 10.4 11.7 89 SNIDER BASIN 8250 12.7 11.2 113 12.8 12.3 104 SPRING CREEK DIVIDE 9000 22.0 20.5 107 22.0 21.6 102 TRIPLE PEAK 8500 20.4 19.5 105 21.8 25.1 87 ----- ----- Basin wide percent of average 110 96 LOWER GREEN RIVER HAMS FORK 7840 10.0 9.3 108 8.8 10.8 81 HEWINTA 9500 7.8 7.2 108 10.5 9.2 114 HICKERSON PARK 9150 5.2 4.2 124 7.8 6.6 118 HOLE-IN-ROCK 9150 5.1 3.9 131 8.1 6.6 123 INDIAN CREEK 9425 22.4 20.4 110 18.8 20.3 93 KELLEY R.S. 8180 13.1 12.5 105 14.7 15.1 97 STEEL CREEK PARK 10100 10.5 10.8 97 12.4 9.4 132 ----- ----- Basin wide percent of average 108 104 UPPER BEAR RIVER BUG LAKE 7950 15.6 14.7 106 14.9 14.2 105 HAYDEN FORK 9400 10.8 11.9 91 15.0 13.4 112 KELLEY R.S. 8180 13.1 12.5 105 14.7 15.1 97 LILY LAKE 9050 9.9 9.4 105 13.6 10.5 130 MONTE CRISTO 8960 19.5 19.7 99 20.3 18.5 110 SALT RIVER SUMMIT 7600 12.3 10.5 117 14.4 13.6 106 TRIAL LAKE 9960 15.2 18.0 84 16.2 17.3 94 ----- ----- Basin wide percent of average 100 106 ----------------------------------------------------------------------------- -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.