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 THURSDAY: JANUARY 7 , 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 8.8 110 11.8 12.2 97 COTTONWOOD CREEK 7600 9.2 10.0 92 12.4 12.9 96 GRANITE CREEK 6770 7.3 8.3 88 9.3 12.8 73 GRASSY LAKE 7265 17.4 16.1 108 18.7 19.8 94 GROS VENTRE SUMMIT 8775 6.5 7.7 84 6.9 8.7 79 LEWIS LAKE DIVIDE 7860 15.5 15.7 99 17.9 20.1 89 PHILLIPS BENCH 8200 13.0 13.1 99 13.5 15.7 86 SALT RIVER SUMMIT 7600 5.1 5.9 86 7.5 9.2 82 SNAKE RIVER STATION 6920 8.8 8.6 102 11.3 13.9 81 SPRING CREEK DIVIDE 9000 11.3 12.9 88 11.7 14.5 81 THUMB DIVIDE 7980 10.4 8.1 128 10.6 11.4 93 TOGWOTEE PASS 9580 -M 12.3 * 14.7 15.0 98 TWO OCEAN PLATEAU 9360 17.4 13.8 126 15.7 16.9 93 WILLOW CREEK 8450 12.5 14.5 86 17.6 17.0 104 ----- ----- Basin wide percent of average 100 90 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 13.5 12.4 109 12.3 9.2 134 BLACK BEAR 7950 21.4 17.4 123 20.1 19.0 106 CANYON 7940 8.5 5.9 144 9.5 7.5 127 FISHER CREEK 9100 20.3 17.4 117 18.6 17.7 105 MADISON PLATEAU 7750 -M 11.3 * 14.1 12.8 110 NORTHEAST ENTRANCE 7350 6.4 4.5 142 8.1 6.3 129 PARKER PEAK 9400 12.6 11.4 111 -M 8.2 * SYLVAN LAKE 8420 13.4 11.7 115 15.8 10.5 150 THUMB DIVIDE 7980 10.4 8.1 128 10.6 11.4 93 TWO OCEAN PLATEAU 9360 17.4 13.8 126 15.7 16.9 93 WHISKEY CREEK 6800 9.0 7.9 114 11.5 10.6 108 WHITE MILL 8700 12.9 12.6 102 12.2 14.1 87 WOLVERINE 7650 9.3 5.8 160 7.1 6.9 103 ----- ----- Basin wide percent of average 120 109 WIND RIVER BURROUGHS CREEK 8750 8.7 7.8 112 9.5 8.7 109 COLD SPRINGS 9630 5.2 4.7 111 6.8 5.8 117 DEER PARK 9700 6.1 -M * 9.2 -M * HOBBS PARK 10100 8.3 8.2 101 8.6 7.3 118 LITTLE WARM 9620 6.8 5.5 124 7.8 7.0 111 SOUTH PASS 9040 7.1 8.9 80 8.7 8.5 102 ST. LAWRENCE ALT 8620 4.0 3.6 111 6.6 5.3 125 TOGWOTEE PASS 9580 -M 12.3 * 14.7 15.0 98 TOWNSEND CREEK 8700 4.5 4.8 94 7.1 6.2 115 ----- ----- Basin wide percent of average 103 109 BIGHORN BASIN BALD MTN. 9375 11.3 11.0 103 10.8 9.3 116 BEAR TRAP MEADOW 7900 3.5 3.9 90 6.5 4.5 144 BLACKWATER 9780 16.0 10.8 148 14.0 9.5 147 BONE SPRINGS DIV 9350 8.7 8.4 104 8.8 7.4 119 EVENING STAR 9200 17.9 14.0 128 18.7 11.7 160 GRAVE SPRINGS 8550 4.1 4.8 85 7.1 5.4 131 KIRWIN 9550 6.9 5.5 125 8.0 5.5 145 MARQUETTE 8760 5.1 4.1 124 6.3 4.9 129 MIDDLE POWDER 7760 4.1 6.2 66 10.2 6.3 162 OWL CREEK 8975 3.6 2.1 171 4.5 3.0 150 POWDER RIVER PASS 9480 6.7 5.5 122 -M 6.0 * SHELL CREEK 9580 9.8 8.1 121 -M 6.9 * SYLVAN LAKE 8420 13.4 11.7 115 15.8 10.5 150 SYLVAN ROAD 8120 9.0 6.3 143 10.7 8.6 124 TIMBER CREEK 7950 3.3 2.7 122 5.3 3.5 151 YOUNTS PEAK 8350 11.1 9.6 116 9.4 8.6 109 ----- ----- Basin wide percent of average 117 138 SHOSHONE RIVER BLACKWATER 9780 16.0 10.8 148 14.0 9.5 147 EVENING STAR 9200 17.9 14.0 128 18.7 11.7 160 KIRWIN 9550 6.9 5.5 125 8.0 5.5 145 MARQUETTE 8760 5.1 4.1 124 6.3 4.9 129 SYLVAN LAKE 8420 13.4 11.7 115 15.8 10.5 150 SYLVAN ROAD 8120 9.0 6.3 143 10.7 8.6 124 YOUNTS PEAK 8350 11.1 9.6 116 9.4 8.6 109 ----- ----- Basin wide percent of average 128 140 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.5 3.9 90 6.5 4.5 144 BIG GOOSE 7990 3.3 -M * 6.3 -M * BONE SPRINGS DIV 9350 8.7 8.4 104 8.8 7.4 119 BURGESS JUNCTION 7880 4.7 5.9 80 6.6 5.9 112 CLOUD PEAK RESERVOIR 9860 8.4 6.1 138 7.9 6.5 122 DOME LAKE 8880 4.8 6.9 70 6.7 7.2 93 GRAVE SPRINGS 8550 4.1 4.8 85 7.1 5.4 131 HANSEN SAWMILL 8760 3.3 3.6 92 5.2 4.1 127 MIDDLE POWDER 7760 4.1 6.2 66 10.2 6.3 162 POWDER RIVER PASS 9480 6.7 5.5 122 -M 6.0 * SUCKER CREEK 8880 5.7 5.6 102 8.1 6.9 117 TIE CREEK 6870 1.9 -M * 5.3 5.7 93 ----- ----- Basin wide percent of average 95 121 BELLE FOURCHE BLIND PARK 6890 3.8 5.7 67 10.8 5.1 212 NORTH RAPID CREEK 6130 3.3 -M * 9.9 -M * WARREN PEAK 6520 4.6 5.7 81 9.7 4.2 231 ----- ----- Basin wide percent of average 74 220 UPPER N. PLATTE RIVER COLUMBINE 9400 8.4 11.1 76 10.7 11.9 90 DIVIDE PEAK 8800 8.5 10.3 83 14.7 12.7 116 ELK RIVER 8700 4.9 9.0 54 11.5 9.5 121 JOE WRIGHT 10120 9.3 11.1 84 13.9 12.5 111 NORTH FRENCH CREEK 10100 14.2 12.3 115 16.4 11.7 140 OLD BATTLE 10000 11.8 15.9 74 17.6 15.2 116 SOUTH BRUSH CREEK 8400 5.5 5.3 104 12.4 10.1 123 TOWER 10500 17.5 23.0 76 19.0 18.1 105 WEBBER SPRINGS 9200 8.1 13.3 61 12.8 13.9 92 WILLOW CREEK PASS 9540 4.9 6.0 82 6.8 6.4 106 ----- ----- Basin wide percent of average 79 111 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 8.8 12.9 68 11.5 9.3 124 CASPER MTN. 7900 4.6 7.8 59 10.2 7.4 138 DEADMAN HILL 10220 9.5 8.6 110 10.0 8.0 125 DEER PARK 9700 6.1 -M * 9.2 -M * LAPRELE CREEK 8320 1.6 5.1 31 7.9 5.6 141 RENO HILL 8400 6.2 6.7 93 10.6 10.0 106 ROACH 9700 7.4 8.4 88 10.6 11.0 96 SAND LAKE 10080 15.7 16.3 96 16.3 10.1 161 SOUTH PASS 9040 7.1 8.9 80 8.7 8.5 102 WINDY PEAK 7840 2.3 3.5 66 8.2 4.4 186 ----- ----- Basin wide percent of average 81 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.7 5.5 85 9.4 8.2 115 DIVIDE PEAK 8800 8.5 10.3 83 14.7 12.7 116 OLD BATTLE 10000 11.8 15.9 74 17.6 15.2 116 SANDSTONE RS 8150 -M 6.8 * -M 9.8 * WHISKEY PARK 8950 8.5 14.0 61 15.0 13.4 112 ----- ----- Basin wide percent of average 73 115 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.3 6.8 107 6.8 8.9 76 BLIND BULL SUM 8650 11.8 13.9 85 10.1 12.0 84 EAST RIM DIVIDE 7930 5.7 6.4 89 6.3 8.3 76 ELKHART PARK G.S. 9400 5.9 6.5 91 6.6 8.7 76 GROS VENTRE SUMMIT 8775 6.5 7.7 84 6.9 8.7 79 KENDALL R.S. 7740 6.2 6.8 91 7.0 8.5 82 LOOMIS PARK 8240 7.1 8.0 89 8.6 10.3 83 NEW FORK LAKE 8340 5.1 5.3 96 5.9 7.9 75 SNIDER BASIN 8250 5.9 6.8 87 6.7 8.3 81 SPRING CREEK DIVIDE 9000 11.3 12.9 88 11.7 14.5 81 TRIPLE PEAK 8500 11.1 12.2 91 12.7 17.0 75 ----- ----- Basin wide percent of average 90 79 LOWER GREEN RIVER HAMS FORK 7840 4.1 5.2 79 4.8 7.3 66 HEWINTA 9500 3.3 4.4 75 6.1 6.8 90 HICKERSON PARK 9150 2.4 2.8 86 5.2 5.0 104 HOLE-IN-ROCK 9150 3.0 2.5 120 5.7 5.0 114 INDIAN CREEK 9425 10.3 13.0 79 9.3 13.7 68 KELLEY R.S. 8180 6.1 7.5 81 7.7 10.2 75 STEEL CREEK PARK 10100 5.2 7.8 67 7.4 7.1 104 ----- ----- Basin wide percent of average 80 84 UPPER BEAR RIVER BUG LAKE 7950 5.1 9.7 53 6.9 10.1 68 HAYDEN FORK 9400 4.9 7.6 64 8.6 9.4 91 KELLEY R.S. 8180 6.1 7.5 81 7.7 10.2 75 LILY LAKE 9050 4.8 6.6 73 7.9 7.6 104 MONTE CRISTO 8960 7.7 12.4 62 10.7 13.1 82 SALT RIVER SUMMIT 7600 5.1 5.9 86 7.5 9.2 82 TRIAL LAKE 9960 5.1 12.0 42 6.4 11.8 54 ----- ----- Basin wide percent of average 63 78 ----------------------------------------------------------------------------- -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.