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 FRIDAY: JANUARY 8 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.7 9.0 108 11.8 12.4 95 COTTONWOOD CREEK 7600 9.3 10.2 91 12.4 13.1 95 GRANITE CREEK 6770 7.4 8.5 87 9.3 13.0 72 GRASSY LAKE 7265 17.9 16.4 109 19.2 20.1 96 GROS VENTRE SUMMIT 8775 6.5 7.8 83 6.9 8.8 78 LEWIS LAKE DIVIDE 7860 15.9 16.0 99 18.2 20.4 89 PHILLIPS BENCH 8200 13.2 13.4 99 13.7 15.9 86 SALT RIVER SUMMIT 7600 5.2 6.1 85 7.5 9.4 80 SNAKE RIVER STATION 6920 9.1 8.8 103 11.8 14.1 84 SPRING CREEK DIVIDE 9000 11.3 13.2 86 11.8 14.7 80 THUMB DIVIDE 7980 10.5 8.3 127 10.7 11.6 92 TOGWOTEE PASS 9580 -M 12.5 * 14.9 15.2 98 TWO OCEAN PLATEAU 9360 17.7 14.0 126 15.9 17.1 93 WILLOW CREEK 8450 12.7 14.8 86 17.7 17.2 103 ----- ----- Basin wide percent of average 100 90 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 13.8 12.6 110 12.6 9.3 135 BLACK BEAR 7950 21.6 17.7 122 20.3 19.3 105 CANYON 7940 8.6 6.1 141 9.6 7.6 126 FISHER CREEK 9100 20.9 17.7 118 18.9 17.9 106 MADISON PLATEAU 7750 -M 11.6 * 14.2 13.0 109 NORTHEAST ENTRANCE 7350 6.5 4.6 141 8.2 6.4 128 PARKER PEAK 9400 12.8 11.5 111 -M 8.3 * SYLVAN LAKE 8420 13.7 11.8 116 16.2 10.6 153 THUMB DIVIDE 7980 10.5 8.3 127 10.7 11.6 92 TWO OCEAN PLATEAU 9360 17.7 14.0 126 15.9 17.1 93 WHISKEY CREEK 6800 9.1 8.0 114 11.6 10.8 107 WHITE MILL 8700 13.3 12.8 104 12.5 14.3 87 WOLVERINE 7650 9.6 5.9 163 7.3 6.9 106 ----- ----- Basin wide percent of average 121 109 WIND RIVER BURROUGHS CREEK 8750 8.7 7.9 110 9.6 8.8 109 COLD SPRINGS 9630 5.2 4.8 108 6.8 5.8 117 DEER PARK 9700 6.1 -M * 9.2 -M * HOBBS PARK 10100 8.2 8.3 99 8.6 7.4 116 LITTLE WARM 9620 6.7 5.6 120 7.8 7.1 110 SOUTH PASS 9040 7.1 9.1 78 8.7 8.6 101 ST. LAWRENCE ALT 8620 3.9 3.7 105 6.6 5.3 125 TOGWOTEE PASS 9580 -M 12.5 * 14.9 15.2 98 TOWNSEND CREEK 8700 4.3 4.9 88 6.8 6.3 108 ----- ----- Basin wide percent of average 100 108 BIGHORN BASIN BALD MTN. 9375 12.1 11.1 109 11.4 9.4 121 BEAR TRAP MEADOW 7900 3.7 4.0 93 6.4 4.5 142 BLACKWATER 9780 16.0 10.9 147 14.2 9.6 148 BONE SPRINGS DIV 9350 8.9 8.5 105 9.2 7.5 123 EVENING STAR 9200 18.3 14.2 129 19.1 11.8 162 GRAVE SPRINGS 8550 4.1 4.9 84 7.1 5.4 131 KIRWIN 9550 6.7 5.6 120 8.0 5.6 143 MARQUETTE 8760 4.9 4.2 117 6.0 4.9 122 MIDDLE POWDER 7760 4.1 6.3 65 10.1 6.4 158 OWL CREEK 8975 3.4 2.2 155 4.2 3.0 140 POWDER RIVER PASS 9480 7.0 5.6 125 8.9 6.1 146 SHELL CREEK 9580 10.1 8.2 123 9.1 7.0 130 SYLVAN LAKE 8420 13.7 11.8 116 16.2 10.6 153 SYLVAN ROAD 8120 9.2 6.4 144 10.9 8.7 125 TIMBER CREEK 7950 3.3 2.7 122 5.3 3.5 151 YOUNTS PEAK 8350 11.2 9.7 115 9.3 8.7 107 ----- ----- Basin wide percent of average 118 138 SHOSHONE RIVER BLACKWATER 9780 16.0 10.9 147 14.2 9.6 148 EVENING STAR 9200 18.3 14.2 129 19.1 11.8 162 KIRWIN 9550 6.7 5.6 120 8.0 5.6 143 MARQUETTE 8760 4.9 4.2 117 6.0 4.9 122 SYLVAN LAKE 8420 13.7 11.8 116 16.2 10.6 153 SYLVAN ROAD 8120 9.2 6.4 144 10.9 8.7 125 YOUNTS PEAK 8350 11.2 9.7 115 9.3 8.7 107 ----- ----- Basin wide percent of average 127 140 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.7 4.0 93 6.4 4.5 142 BIG GOOSE 7990 3.4 -M * 6.2 -M * BONE SPRINGS DIV 9350 8.9 8.5 105 9.2 7.5 123 BURGESS JUNCTION 7880 4.8 6.0 80 6.7 5.9 114 CLOUD PEAK RESERVOIR 9860 8.5 6.2 137 7.7 6.6 117 DOME LAKE 8880 4.9 7.0 70 6.8 7.3 93 GRAVE SPRINGS 8550 4.1 4.9 84 7.1 5.4 131 HANSEN SAWMILL 8760 3.3 3.6 92 5.3 4.1 129 MIDDLE POWDER 7760 4.1 6.3 65 10.1 6.4 158 POWDER RIVER PASS 9480 7.0 5.6 125 8.9 6.1 146 SUCKER CREEK 8880 5.9 5.7 104 8.2 7.0 117 TIE CREEK 6870 2.0 -M * 5.4 5.7 95 ----- ----- Basin wide percent of average 96 123 BELLE FOURCHE BLIND PARK 6890 4.0 5.8 69 11.1 5.1 218 NORTH RAPID CREEK 6130 3.4 -M * 10.0 -M * WARREN PEAK 6520 4.8 5.8 83 10.0 4.2 238 ----- ----- Basin wide percent of average 76 227 UPPER N. PLATTE RIVER COLUMBINE 9400 8.4 11.3 74 10.7 12.1 88 DIVIDE PEAK 8800 8.5 10.5 81 14.5 12.8 113 ELK RIVER 8700 4.9 9.2 53 11.2 9.6 117 JOE WRIGHT 10120 9.3 11.3 82 13.9 12.7 109 NORTH FRENCH CREEK 10100 14.4 12.5 115 16.5 11.8 140 OLD BATTLE 10000 12.0 16.1 75 17.7 15.4 115 SOUTH BRUSH CREEK 8400 5.6 5.4 104 12.4 10.1 123 TOWER 10500 17.6 23.2 76 19.0 18.4 103 WEBBER SPRINGS 9200 8.2 13.5 61 12.9 14.0 92 WILLOW CREEK PASS 9540 4.8 6.1 79 6.9 6.5 106 ----- ----- Basin wide percent of average 79 110 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.0 13.0 69 11.7 9.4 124 CASPER MTN. 7900 4.6 7.9 58 10.2 7.4 138 DEADMAN HILL 10220 -M 8.7 * 10.1 8.1 125 DEER PARK 9700 6.1 -M * 9.2 -M * LAPRELE CREEK 8320 1.6 5.2 31 7.8 5.7 137 RENO HILL 8400 6.3 6.8 93 10.6 10.1 105 ROACH 9700 7.5 8.5 88 10.6 11.1 95 SAND LAKE 10080 15.9 16.6 96 16.5 10.2 162 SOUTH PASS 9040 7.1 9.1 78 8.7 8.6 101 WINDY PEAK 7840 2.2 3.5 63 8.0 4.5 178 ----- ----- Basin wide percent of average 77 125 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.6 5.6 82 9.4 8.3 113 DIVIDE PEAK 8800 8.5 10.5 81 14.5 12.8 113 OLD BATTLE 10000 12.0 16.1 75 17.7 15.4 115 SANDSTONE RS 8150 -M 7.0 * -M 10.0 * WHISKEY PARK 8950 8.6 14.2 61 15.0 13.7 109 ----- ----- Basin wide percent of average 73 113 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.2 6.9 104 6.7 9.0 74 BLIND BULL SUM 8650 11.8 14.2 83 10.1 12.2 83 EAST RIM DIVIDE 7930 5.6 6.6 85 6.2 8.4 74 ELKHART PARK G.S. 9400 5.8 6.6 88 6.5 8.8 74 GROS VENTRE SUMMIT 8775 6.5 7.8 83 6.9 8.8 78 KENDALL R.S. 7740 6.1 7.0 87 6.8 8.6 79 LOOMIS PARK 8240 7.1 8.2 87 8.6 10.5 82 NEW FORK LAKE 8340 5.0 5.4 93 5.7 8.0 71 SNIDER BASIN 8250 5.9 7.0 84 6.7 8.4 80 SPRING CREEK DIVIDE 9000 11.3 13.2 86 11.8 14.7 80 TRIPLE PEAK 8500 11.1 12.5 89 12.7 17.2 74 ----- ----- Basin wide percent of average 87 77 LOWER GREEN RIVER HAMS FORK 7840 4.1 5.3 77 4.8 7.4 65 HEWINTA 9500 3.3 4.5 73 6.1 6.9 88 HICKERSON PARK 9150 2.3 2.8 82 5.1 5.1 100 HOLE-IN-ROCK 9150 2.8 2.5 112 5.5 5.1 108 INDIAN CREEK 9425 10.3 13.2 78 9.3 13.9 67 KELLEY R.S. 8180 6.1 7.7 79 7.7 10.4 74 STEEL CREEK PARK 10100 5.1 7.9 65 7.3 7.2 101 ----- ----- Basin wide percent of average 77 82 UPPER BEAR RIVER BUG LAKE 7950 5.0 9.9 51 6.8 10.2 67 HAYDEN FORK 9400 4.8 7.8 62 8.3 9.5 87 KELLEY R.S. 8180 6.1 7.7 79 7.7 10.4 74 LILY LAKE 9050 4.9 6.7 73 7.9 7.7 103 MONTE CRISTO 8960 7.4 12.7 58 10.6 13.2 80 SALT RIVER SUMMIT 7600 5.2 6.1 85 7.5 9.4 80 TRIAL LAKE 9960 5.1 12.2 42 6.5 11.9 55 ----- ----- Basin wide percent of average 61 76 ----------------------------------------------------------------------------- -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.