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 2 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 8.7 8.1 107 10.8 11.4 95 COTTONWOOD CREEK 7600 9.0 9.0 100 12.1 12.1 100 GRANITE CREEK 6770 7.0 7.4 95 8.9 12.0 74 GRASSY LAKE 7265 15.9 14.6 109 17.3 18.5 94 GROS VENTRE SUMMIT 8775 6.2 7.0 89 6.7 8.1 83 LEWIS LAKE DIVIDE 7860 14.7 14.1 104 17.2 18.8 91 PHILLIPS BENCH 8200 12.0 11.8 102 12.5 14.5 86 SALT RIVER SUMMIT 7600 5.0 5.2 96 7.3 8.6 85 SNAKE RIVER STATION 6920 8.0 7.8 103 10.6 13.0 82 SPRING CREEK DIVIDE 9000 10.7 11.8 91 11.5 13.5 85 THUMB DIVIDE 7980 10.1 7.4 136 10.2 10.7 95 TOGWOTEE PASS 9580 11.9 11.3 105 13.4 14.0 96 TWO OCEAN PLATEAU 9360 16.3 12.8 127 14.8 15.7 94 WILLOW CREEK 8450 12.1 13.1 92 17.5 15.8 111 ----- ----- Basin wide percent of average 104 91 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.7 11.7 100 10.6 8.6 123 BLACK BEAR 7950 20.1 15.9 126 19.5 17.5 111 CANYON 7940 7.6 5.4 141 8.6 7.0 123 FISHER CREEK 9100 18.1 15.9 114 16.1 16.3 99 MADISON PLATEAU 7750 -M 10.3 * 13.2 11.9 111 NORTHEAST ENTRANCE 7350 5.0 4.1 122 6.6 5.9 112 PARKER PEAK 9400 11.0 10.7 103 -M 7.7 * SYLVAN LAKE 8420 11.7 10.9 107 14.1 9.9 142 THUMB DIVIDE 7980 10.1 7.4 136 10.2 10.7 95 TWO OCEAN PLATEAU 9360 16.3 12.8 127 14.8 15.7 94 WHISKEY CREEK 6800 8.5 7.1 120 10.7 9.9 108 WHITE MILL 8700 11.3 11.6 97 10.7 13.0 82 WOLVERINE 7650 8.1 5.3 153 6.4 6.5 98 ----- ----- Basin wide percent of average 117 106 WIND RIVER BURROUGHS CREEK 8750 8.0 7.2 111 8.8 8.2 107 COLD SPRINGS 9630 5.0 4.5 111 6.6 5.5 120 DEER PARK 9700 6.2 -M * 9.2 -M * HOBBS PARK 10100 8.0 7.8 103 8.6 7.0 123 LITTLE WARM 9620 6.2 5.2 119 7.2 6.7 107 SOUTH PASS 9040 7.0 8.4 83 8.6 8.1 106 ST. LAWRENCE ALT 8620 3.7 3.4 109 6.6 5.0 132 TOGWOTEE PASS 9580 11.9 11.3 105 13.4 14.0 96 TOWNSEND CREEK 8700 4.3 4.6 93 6.8 5.9 115 ----- ----- Basin wide percent of average 103 110 BIGHORN BASIN BALD MTN. 9375 8.3 10.3 81 7.8 8.8 89 BEAR TRAP MEADOW 7900 3.4 3.7 92 6.0 4.3 140 BLACKWATER 9780 14.9 10.0 149 13.1 8.9 147 BONE SPRINGS DIV 9350 6.7 7.9 85 7.1 7.0 101 EVENING STAR 9200 16.0 13.1 122 16.6 10.9 152 GRAVE SPRINGS 8550 3.3 4.6 72 6.6 5.1 129 KIRWIN 9550 6.4 5.3 121 7.6 5.3 143 MARQUETTE 8760 -M 3.9 * 5.7 4.7 121 MIDDLE POWDER 7760 3.6 5.8 62 9.6 6.1 157 OWL CREEK 8975 -M 1.9 * 4.0 2.8 143 POWDER RIVER PASS 9480 4.8 5.2 92 6.8 5.7 119 SHELL CREEK 9580 7.5 7.6 99 6.7 6.5 103 SYLVAN LAKE 8420 11.7 10.9 107 14.1 9.9 142 SYLVAN ROAD 8120 7.8 5.9 132 9.4 8.1 116 TIMBER CREEK 7950 3.2 2.4 133 5.3 3.3 161 YOUNTS PEAK 8350 10.1 9.0 112 8.9 8.1 110 ----- ----- Basin wide percent of average 106 128 SHOSHONE RIVER BLACKWATER 9780 14.9 10.0 149 13.1 8.9 147 EVENING STAR 9200 16.0 13.1 122 16.6 10.9 152 KIRWIN 9550 6.4 5.3 121 7.6 5.3 143 MARQUETTE 8760 -M 3.9 * 5.7 4.7 121 SYLVAN LAKE 8420 11.7 10.9 107 14.1 9.9 142 SYLVAN ROAD 8120 7.8 5.9 132 9.4 8.1 116 YOUNTS PEAK 8350 10.1 9.0 112 8.9 8.1 110 ----- ----- Basin wide percent of average 123 135 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.4 3.7 92 6.0 4.3 140 BIG GOOSE 7990 2.9 -M * 6.1 -M * BONE SPRINGS DIV 9350 6.7 7.9 85 7.1 7.0 101 BURGESS JUNCTION 7880 3.6 5.6 64 5.8 5.6 104 CLOUD PEAK RESERVOIR 9860 7.0 5.7 123 6.8 6.2 110 DOME LAKE 8880 3.9 6.4 61 5.9 7.0 84 GRAVE SPRINGS 8550 3.3 4.6 72 6.6 5.1 129 HANSEN SAWMILL 8760 2.8 3.3 85 5.2 3.9 133 MIDDLE POWDER 7760 3.6 5.8 62 9.6 6.1 157 POWDER RIVER PASS 9480 4.8 5.2 92 6.8 5.7 119 SUCKER CREEK 8880 4.5 5.3 85 6.9 6.6 105 TIE CREEK 6870 1.1 -M * 4.4 5.4 81 ----- ----- Basin wide percent of average 81 113 BELLE FOURCHE BLIND PARK 6890 2.4 5.4 44 9.2 4.8 192 NORTH RAPID CREEK 6130 2.3 -M * 8.8 -M * WARREN PEAK 6520 2.6 5.4 48 8.3 3.9 213 ----- ----- Basin wide percent of average 46 201 UPPER N. PLATTE RIVER COLUMBINE 9400 7.0 10.0 70 9.3 11.0 85 DIVIDE PEAK 8800 7.4 9.6 77 13.8 12.0 115 ELK RIVER 8700 3.7 8.2 45 10.2 8.9 115 JOE WRIGHT 10120 7.7 10.5 73 12.2 11.8 103 NORTH FRENCH CREEK 10100 12.1 11.6 104 14.5 11.0 132 OLD BATTLE 10000 11.0 15.0 73 16.1 14.4 112 SOUTH BRUSH CREEK 8400 4.1 4.9 84 11.1 9.9 112 TOWER 10500 15.5 22.0 70 17.2 16.9 102 WEBBER SPRINGS 9200 7.1 12.4 57 11.8 13.3 89 WILLOW CREEK PASS 9540 4.6 5.8 79 6.4 6.2 103 ----- ----- Basin wide percent of average 73 106 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 7.1 12.1 59 9.8 8.7 113 CASPER MTN. 7900 4.2 7.6 55 9.8 7.1 138 DEADMAN HILL 10220 -M 8.0 * 9.3 7.5 124 DEER PARK 9700 6.2 -M * 9.2 -M * LAPRELE CREEK 8320 1.2 4.8 25 7.4 5.2 142 RENO HILL 8400 5.8 6.3 92 10.0 9.8 102 ROACH 9700 6.2 7.8 79 9.4 10.3 91 SAND LAKE 10080 13.2 15.3 86 14.5 9.5 153 SOUTH PASS 9040 7.0 8.4 83 8.6 8.1 106 WINDY PEAK 7840 1.6 3.3 48 7.7 4.2 183 ----- ----- Basin wide percent of average 71 123 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.7 5.1 73 8.9 7.6 117 DIVIDE PEAK 8800 7.4 9.6 77 13.8 12.0 115 OLD BATTLE 10000 11.0 15.0 73 16.1 14.4 112 SANDSTONE RS 8150 -M 6.3 * -M 9.1 * WHISKEY PARK 8950 7.2 13.0 55 13.5 12.1 112 ----- ----- Basin wide percent of average 69 113 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.0 6.1 115 6.4 8.3 77 BLIND BULL SUM 8650 11.5 12.7 91 9.8 11.1 88 EAST RIM DIVIDE 7930 5.4 5.8 93 6.1 7.7 79 ELKHART PARK G.S. 9400 5.6 5.9 95 6.4 8.1 79 GROS VENTRE SUMMIT 8775 6.2 7.0 89 6.7 8.1 83 KENDALL R.S. 7740 6.0 6.1 98 6.6 7.9 84 LOOMIS PARK 8240 6.9 7.2 96 8.2 9.6 85 NEW FORK LAKE 8340 4.9 4.7 104 5.4 7.4 73 SNIDER BASIN 8250 5.7 6.1 93 6.6 7.7 86 SPRING CREEK DIVIDE 9000 10.7 11.8 91 11.5 13.5 85 TRIPLE PEAK 8500 10.9 11.1 98 12.4 15.8 78 ----- ----- Basin wide percent of average 96 82 LOWER GREEN RIVER HAMS FORK 7840 4.0 4.4 91 4.8 6.8 71 HEWINTA 9500 3.2 4.0 80 6.0 6.5 92 HICKERSON PARK 9150 2.4 2.6 92 5.0 4.8 104 HOLE-IN-ROCK 9150 2.9 2.3 126 5.4 4.8 113 INDIAN CREEK 9425 10.0 11.8 85 8.8 12.8 69 KELLEY R.S. 8180 5.9 6.8 87 7.5 9.5 79 STEEL CREEK PARK 10100 5.0 7.3 68 7.2 6.9 104 ----- ----- Basin wide percent of average 85 86 UPPER BEAR RIVER BUG LAKE 7950 5.2 9.0 58 6.7 9.6 70 HAYDEN FORK 9400 4.9 6.9 71 7.6 8.9 85 KELLEY R.S. 8180 5.9 6.8 87 7.5 9.5 79 LILY LAKE 9050 4.8 6.3 76 7.9 7.3 108 MONTE CRISTO 8960 7.3 11.2 65 10.6 12.4 85 SALT RIVER SUMMIT 7600 5.0 5.2 96 7.3 8.6 85 TRIAL LAKE 9960 5.2 11.0 47 6.6 11.1 59 ----- ----- Basin wide percent of average 68 80 ----------------------------------------------------------------------------- -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.