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: JANUARY 30 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.4 12.2 126 16.4 16.0 102 COTTONWOOD CREEK 7600 13.9 13.7 101 17.0 17.0 100 GRANITE CREEK 6770 12.2 12.0 102 14.3 16.9 85 GRASSY LAKE 7265 27.0 22.5 120 27.3 25.9 105 GROS VENTRE SUMMIT 8775 9.2 10.4 88 9.4 11.4 82 LEWIS LAKE DIVIDE 7860 25.3 22.3 113 25.8 26.4 98 PHILLIPS BENCH 8200 19.4 18.9 103 19.4 20.8 93 SALT RIVER SUMMIT 7600 8.7 8.8 99 10.9 12.1 90 SNAKE RIVER STATION 6920 14.5 12.1 120 17.9 18.2 98 SPRING CREEK DIVIDE 9000 16.6 17.8 93 17.0 19.0 89 THUMB DIVIDE 7980 14.8 11.2 132 14.6 15.0 97 TOGWOTEE PASS 9580 -M 16.5 * 19.6 19.7 99 TWO OCEAN PLATEAU 9360 23.9 17.9 134 20.8 22.0 95 WILLOW CREEK 8450 19.5 20.5 95 24.5 22.3 110 ----- ----- Basin wide percent of average 110 97 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 18.6 15.7 118 16.7 11.9 140 BLACK BEAR 7950 31.3 23.9 131 -M 25.9 * CANYON 7940 12.1 8.1 149 12.9 9.7 133 FISHER CREEK 9100 27.2 23.7 115 23.6 24.0 98 MADISON PLATEAU 7750 -M 15.7 * 19.6 16.9 116 NORTHEAST ENTRANCE 7350 8.5 6.3 135 10.4 8.1 128 PARKER PEAK 9400 16.4 14.1 116 -M 10.3 * SYLVAN LAKE 8420 18.6 14.7 127 20.9 13.0 161 THUMB DIVIDE 7980 14.8 11.2 132 14.6 15.0 97 TWO OCEAN PLATEAU 9360 23.9 17.9 134 20.8 22.0 95 WHISKEY CREEK 6800 13.3 10.9 122 15.8 14.1 112 WHITE MILL 8700 18.3 16.5 111 16.7 18.9 88 WOLVERINE 7650 11.5 7.7 149 9.9 8.6 115 ----- ----- Basin wide percent of average 126 112 WIND RIVER BURROUGHS CREEK 8750 11.7 10.2 115 12.8 11.1 115 COLD SPRINGS 9630 6.5 5.7 114 8.2 6.8 121 DEER PARK 9700 10.2 -M * 13.8 -M * HOBBS PARK 10100 10.4 9.9 105 10.4 9.1 114 LITTLE WARM 9620 8.6 7.1 121 9.7 8.8 110 SOUTH PASS 9040 11.1 11.1 100 12.6 10.6 119 ST. LAWRENCE ALT 8620 4.5 4.7 96 7.3 6.2 118 TOGWOTEE PASS 9580 -M 16.5 * 19.6 19.7 99 TOWNSEND CREEK 8700 5.5 6.1 90 8.0 7.7 104 ----- ----- Basin wide percent of average 106 111 BIGHORN BASIN BALD MTN. 9375 14.1 13.6 104 13.2 11.5 115 BEAR TRAP MEADOW 7900 4.5 4.7 96 7.0 5.3 132 BLACKWATER 9780 20.8 13.8 151 18.2 12.0 152 BONE SPRINGS DIV 9350 10.9 10.4 105 11.2 9.2 122 EVENING STAR 9200 23.7 17.5 135 24.6 15.0 164 GRAVE SPRINGS 8550 4.8 6.0 80 7.8 6.3 124 KIRWIN 9550 8.3 6.5 128 9.6 6.7 143 MARQUETTE 8760 6.1 5.0 122 6.9 5.7 121 MIDDLE POWDER 7760 5.0 7.7 65 10.9 7.7 142 OWL CREEK 8975 4.2 2.8 150 4.9 3.7 132 POWDER RIVER PASS 9480 8.4 6.9 122 10.5 7.7 136 SHELL CREEK 9580 12.1 10.0 121 10.9 8.7 125 SYLVAN LAKE 8420 18.6 14.7 127 20.9 13.0 161 SYLVAN ROAD 8120 12.3 8.3 148 14.4 10.9 132 TIMBER CREEK 7950 3.8 3.5 109 5.6 4.1 137 YOUNTS PEAK 8350 14.8 12.0 123 13.0 11.1 117 ----- ----- Basin wide percent of average 120 137 SHOSHONE RIVER BLACKWATER 9780 20.8 13.8 151 18.2 12.0 152 EVENING STAR 9200 23.7 17.5 135 24.6 15.0 164 KIRWIN 9550 8.3 6.5 128 9.6 6.7 143 MARQUETTE 8760 6.1 5.0 122 6.9 5.7 121 SYLVAN LAKE 8420 18.6 14.7 127 20.9 13.0 161 SYLVAN ROAD 8120 12.3 8.3 148 14.4 10.9 132 YOUNTS PEAK 8350 14.8 12.0 123 13.0 11.1 117 ----- ----- Basin wide percent of average 134 145 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.5 4.7 96 7.0 5.3 132 BIG GOOSE 7990 3.8 -M * 6.7 -M * BONE SPRINGS DIV 9350 10.9 10.4 105 11.2 9.2 122 BURGESS JUNCTION 7880 5.3 7.5 71 7.3 7.0 104 CLOUD PEAK RESERVOIR 9860 9.6 7.8 123 8.3 8.0 104 DOME LAKE 8880 5.6 8.8 64 7.4 8.6 86 GRAVE SPRINGS 8550 4.8 6.0 80 7.8 6.3 124 HANSEN SAWMILL 8760 3.7 4.5 82 5.8 4.9 118 MIDDLE POWDER 7760 5.0 7.7 65 10.9 7.7 142 POWDER RIVER PASS 9480 8.4 6.9 122 10.5 7.7 136 SUCKER CREEK 8880 6.8 7.3 93 8.9 8.5 105 TIE CREEK 6870 2.3 -M * 5.9 6.7 88 ----- ----- Basin wide percent of average 90 114 BELLE FOURCHE BLIND PARK 6890 5.2 7.1 73 12.2 6.0 203 NORTH RAPID CREEK 6130 4.0 -M * 10.6 -M * WARREN PEAK 6520 6.0 7.1 85 10.9 5.1 214 ----- ----- Basin wide percent of average 79 208 UPPER N. PLATTE RIVER COLUMBINE 9400 13.5 15.4 88 14.8 16.0 93 DIVIDE PEAK 8800 12.9 13.1 98 18.2 15.8 115 ELK RIVER 8700 -M 12.2 * 16.2 12.3 132 JOE WRIGHT 10120 14.3 13.8 104 19.4 16.2 120 NORTH FRENCH CREEK 10100 19.6 15.7 125 20.1 14.8 136 OLD BATTLE 10000 18.3 20.1 91 24.3 19.1 127 SOUTH BRUSH CREEK 8400 5.4 7.0 77 14.7 10.6 139 TOWER 10500 27.7 29.4 94 26.7 23.6 113 WEBBER SPRINGS 9200 12.7 17.1 74 17.8 16.4 109 WILLOW CREEK PASS 9540 7.8 7.2 108 8.9 7.7 116 ----- ----- Basin wide percent of average 95 119 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.3 15.8 84 15.7 11.9 132 CASPER MTN. 7900 6.8 9.3 73 12.2 8.5 144 DEADMAN HILL 10220 11.5 10.9 106 13.3 10.1 132 DEER PARK 9700 10.2 -M * 13.8 -M * LAPRELE CREEK 8320 2.8 6.5 43 9.8 7.4 132 RENO HILL 8400 8.8 8.2 107 13.1 11.3 116 ROACH 9700 12.2 10.8 113 15.0 13.9 108 SAND LAKE 10080 21.6 20.8 104 20.5 12.8 160 SOUTH PASS 9040 11.1 11.1 100 12.6 10.6 119 WINDY PEAK 7840 3.4 4.4 77 9.1 5.8 157 ----- ----- Basin wide percent of average 94 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.5 7.2 104 12.4 10.7 116 DIVIDE PEAK 8800 12.9 13.1 98 18.2 15.8 115 OLD BATTLE 10000 18.3 20.1 91 24.3 19.1 127 SANDSTONE RS 8150 7.9 9.1 87 14.6 13.0 112 WHISKEY PARK 8950 16.7 18.1 92 20.5 19.5 105 ----- ----- Basin wide percent of average 94 115 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.4 9.4 111 9.8 11.7 84 BLIND BULL SUM 8650 17.8 18.6 96 14.8 16.4 90 EAST RIM DIVIDE 7930 8.5 9.1 93 8.9 10.9 82 ELKHART PARK G.S. 9400 8.6 8.7 99 9.2 11.5 80 GROS VENTRE SUMMIT 8775 9.2 10.4 88 9.4 11.4 82 KENDALL R.S. 7740 9.1 9.7 94 9.7 11.1 87 LOOMIS PARK 8240 9.8 11.3 87 12.8 13.5 95 NEW FORK LAKE 8340 7.5 7.7 97 7.7 10.4 74 SNIDER BASIN 8250 8.8 9.7 91 9.4 10.9 86 SPRING CREEK DIVIDE 9000 16.6 17.8 93 17.0 19.0 89 TRIPLE PEAK 8500 15.9 17.0 94 17.8 22.2 80 ----- ----- Basin wide percent of average 94 85 LOWER GREEN RIVER HAMS FORK 7840 7.3 7.9 92 7.0 9.6 73 HEWINTA 9500 5.8 6.1 95 9.1 8.3 110 HICKERSON PARK 9150 3.8 3.4 112 6.6 5.9 112 HOLE-IN-ROCK 9150 4.1 3.1 132 7.0 5.9 119 INDIAN CREEK 9425 16.0 17.5 91 13.8 17.9 77 KELLEY R.S. 8180 9.6 10.5 91 11.3 13.4 84 STEEL CREEK PARK 10100 8.6 9.6 90 10.6 8.5 125 ----- ----- Basin wide percent of average 95 94 UPPER BEAR RIVER BUG LAKE 7950 10.6 12.7 83 11.3 12.6 90 HAYDEN FORK 9400 8.4 10.0 84 12.1 11.7 103 KELLEY R.S. 8180 9.6 10.5 91 11.3 13.4 84 LILY LAKE 9050 8.1 8.0 101 11.4 9.4 121 MONTE CRISTO 8960 14.5 16.9 86 16.1 16.2 99 SALT RIVER SUMMIT 7600 8.7 8.8 99 10.9 12.1 90 TRIAL LAKE 9960 10.7 15.5 69 11.9 14.9 80 ----- ----- Basin wide percent of average 86 94 ----------------------------------------------------------------------------- -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.