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 9 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.8 9.2 107 11.8 12.5 94 COTTONWOOD CREEK 7600 9.4 10.3 91 12.5 13.3 94 GRANITE CREEK 6770 7.4 8.7 85 9.3 13.2 70 GRASSY LAKE 7265 18.2 16.7 109 19.4 20.3 96 GROS VENTRE SUMMIT 8775 6.5 7.9 82 6.9 8.9 78 LEWIS LAKE DIVIDE 7860 16.3 16.3 100 18.4 20.7 89 PHILLIPS BENCH 8200 13.3 13.7 97 13.8 16.1 86 SALT RIVER SUMMIT 7600 5.2 6.2 84 7.5 9.5 79 SNAKE RIVER STATION 6920 9.3 9.0 103 12.0 14.3 84 SPRING CREEK DIVIDE 9000 11.3 13.4 84 11.8 14.9 79 THUMB DIVIDE 7980 10.6 8.4 126 10.8 11.7 92 TOGWOTEE PASS 9580 -M 12.7 * 15.1 15.4 98 TWO OCEAN PLATEAU 9360 17.7 14.1 126 16.0 17.3 92 WILLOW CREEK 8450 12.8 15.1 85 17.8 17.5 102 ----- ----- Basin wide percent of average 99 89 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 14.0 12.8 109 12.7 9.4 135 BLACK BEAR 7950 22.0 18.0 122 20.4 19.6 104 CANYON 7940 8.7 6.2 140 9.8 7.7 127 FISHER CREEK 9100 21.2 18.0 118 19.0 18.2 104 MADISON PLATEAU 7750 -M 11.8 * 14.5 13.1 111 NORTHEAST ENTRANCE 7350 6.5 4.7 138 8.3 6.4 130 PARKER PEAK 9400 12.8 11.6 110 -M 8.3 * SYLVAN LAKE 8420 13.8 11.9 116 16.3 10.7 152 THUMB DIVIDE 7980 10.6 8.4 126 10.8 11.7 92 TWO OCEAN PLATEAU 9360 17.7 14.1 126 16.0 17.3 92 WHISKEY CREEK 6800 9.4 8.1 116 11.8 10.9 108 WHITE MILL 8700 13.5 12.9 105 12.6 14.5 87 WOLVERINE 7650 9.4 5.9 159 7.4 7.0 106 ----- ----- Basin wide percent of average 120 109 WIND RIVER BURROUGHS CREEK 8750 8.7 8.0 109 9.5 8.9 107 COLD SPRINGS 9630 5.2 4.8 108 6.8 5.9 115 DEER PARK 9700 6.1 -M * 9.2 -M * HOBBS PARK 10100 8.2 8.4 98 8.6 7.5 115 LITTLE WARM 9620 6.7 5.7 118 7.9 7.2 110 SOUTH PASS 9040 7.1 9.2 77 8.7 8.7 100 ST. LAWRENCE ALT 8620 3.8 3.7 103 6.6 5.3 125 TOGWOTEE PASS 9580 -M 12.7 * 15.1 15.4 98 TOWNSEND CREEK 8700 4.3 5.0 86 6.9 6.3 110 ----- ----- Basin wide percent of average 98 108 BIGHORN BASIN BALD MTN. 9375 12.3 11.2 110 11.5 9.5 121 BEAR TRAP MEADOW 7900 3.9 4.0 98 6.5 4.6 141 BLACKWATER 9780 16.1 11.0 146 14.2 9.7 146 BONE SPRINGS DIV 9350 9.1 8.6 106 9.3 7.5 124 EVENING STAR 9200 18.4 14.3 129 19.3 12.0 161 GRAVE SPRINGS 8550 4.2 5.0 84 7.3 5.4 135 KIRWIN 9550 6.7 5.6 120 8.0 5.6 143 MARQUETTE 8760 5.0 4.2 119 6.0 5.0 120 MIDDLE POWDER 7760 4.4 6.3 70 10.1 6.5 155 OWL CREEK 8975 3.5 2.2 159 4.2 3.1 135 POWDER RIVER PASS 9480 7.1 5.6 127 9.0 6.2 145 SHELL CREEK 9580 10.2 8.3 123 9.2 7.0 131 SYLVAN LAKE 8420 13.8 11.9 116 16.3 10.7 152 SYLVAN ROAD 8120 9.3 6.5 143 11.0 8.8 125 TIMBER CREEK 7950 3.3 2.7 122 5.3 3.5 151 YOUNTS PEAK 8350 11.2 9.8 114 9.2 8.9 103 ----- ----- Basin wide percent of average 118 137 SHOSHONE RIVER BLACKWATER 9780 16.1 11.0 146 14.2 9.7 146 EVENING STAR 9200 18.4 14.3 129 19.3 12.0 161 KIRWIN 9550 6.7 5.6 120 8.0 5.6 143 MARQUETTE 8760 5.0 4.2 119 6.0 5.0 120 SYLVAN LAKE 8420 13.8 11.9 116 16.3 10.7 152 SYLVAN ROAD 8120 9.3 6.5 143 11.0 8.8 125 YOUNTS PEAK 8350 11.2 9.8 114 9.2 8.9 103 ----- ----- Basin wide percent of average 127 138 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.9 4.0 98 6.5 4.6 141 BIG GOOSE 7990 3.5 -M * 6.3 -M * BONE SPRINGS DIV 9350 9.1 8.6 106 9.3 7.5 124 BURGESS JUNCTION 7880 4.8 6.1 79 6.8 6.0 113 CLOUD PEAK RESERVOIR 9860 8.7 6.2 140 7.9 6.6 120 DOME LAKE 8880 4.9 7.0 70 6.8 7.4 92 GRAVE SPRINGS 8550 4.2 5.0 84 7.3 5.4 135 HANSEN SAWMILL 8760 3.3 3.6 92 5.4 4.2 129 MIDDLE POWDER 7760 4.4 6.3 70 10.1 6.5 155 POWDER RIVER PASS 9480 7.1 5.6 127 9.0 6.2 145 SUCKER CREEK 8880 6.0 5.8 103 8.1 7.0 116 TIE CREEK 6870 2.1 -M * 5.5 5.8 95 ----- ----- Basin wide percent of average 97 123 BELLE FOURCHE BLIND PARK 6890 4.0 5.8 69 11.0 5.1 216 NORTH RAPID CREEK 6130 3.4 -M * 10.0 -M * WARREN PEAK 6520 4.8 5.8 83 10.1 4.2 240 ----- ----- Basin wide percent of average 76 227 UPPER N. PLATTE RIVER COLUMBINE 9400 8.6 11.5 75 10.7 12.2 88 DIVIDE PEAK 8800 8.6 10.6 81 14.5 13.0 112 ELK RIVER 8700 5.1 9.3 55 11.3 9.8 115 JOE WRIGHT 10120 9.3 11.4 82 14.0 12.9 109 NORTH FRENCH CREEK 10100 14.5 12.7 114 16.7 12.0 139 OLD BATTLE 10000 12.2 16.3 75 17.8 15.5 115 SOUTH BRUSH CREEK 8400 5.8 5.4 107 12.6 10.1 125 TOWER 10500 18.0 23.4 77 19.2 18.6 103 WEBBER SPRINGS 9200 8.3 13.6 61 13.0 14.1 92 WILLOW CREEK PASS 9540 4.7 6.2 76 6.4 6.5 98 ----- ----- Basin wide percent of average 79 109 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.0 13.1 69 11.7 9.5 123 CASPER MTN. 7900 4.6 7.9 58 10.1 7.5 135 DEADMAN HILL 10220 8.9 8.8 101 10.2 8.1 126 DEER PARK 9700 6.1 -M * 9.2 -M * LAPRELE CREEK 8320 1.6 5.2 31 7.9 5.7 139 RENO HILL 8400 6.4 6.8 94 10.8 10.1 107 ROACH 9700 7.6 8.6 88 10.6 11.2 95 SAND LAKE 10080 16.1 16.8 96 16.6 10.3 161 SOUTH PASS 9040 7.1 9.2 77 8.7 8.7 100 WINDY PEAK 7840 2.2 3.5 63 8.0 4.6 174 ----- ----- Basin wide percent of average 79 125 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.8 5.6 86 9.5 8.4 113 DIVIDE PEAK 8800 8.6 10.6 81 14.5 13.0 112 OLD BATTLE 10000 12.2 16.3 75 17.8 15.5 115 SANDSTONE RS 8150 -M 7.1 * -M 10.1 * WHISKEY PARK 8950 9.0 14.3 63 15.0 13.9 108 ----- ----- Basin wide percent of average 74 112 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.2 7.0 103 6.7 9.2 73 BLIND BULL SUM 8650 11.8 14.4 82 10.1 12.4 81 EAST RIM DIVIDE 7930 5.7 6.7 85 6.2 8.5 73 ELKHART PARK G.S. 9400 5.8 6.7 87 6.5 9.0 72 GROS VENTRE SUMMIT 8775 6.5 7.9 82 6.9 8.9 78 KENDALL R.S. 7740 6.1 7.2 85 6.8 8.7 78 LOOMIS PARK 8240 7.2 8.3 87 8.7 10.6 82 NEW FORK LAKE 8340 5.1 5.5 93 5.7 8.2 70 SNIDER BASIN 8250 5.8 7.1 82 6.7 8.5 79 SPRING CREEK DIVIDE 9000 11.3 13.4 84 11.8 14.9 79 TRIPLE PEAK 8500 11.1 12.7 87 12.8 17.4 74 ----- ----- Basin wide percent of average 86 76 LOWER GREEN RIVER HAMS FORK 7840 4.1 5.4 76 4.8 7.5 64 HEWINTA 9500 3.3 4.6 72 6.2 6.9 90 HICKERSON PARK 9150 2.3 2.8 82 5.2 5.1 102 HOLE-IN-ROCK 9150 2.9 2.5 116 5.5 5.1 108 INDIAN CREEK 9425 10.4 13.4 78 9.3 14.1 66 KELLEY R.S. 8180 6.0 7.8 77 7.7 10.5 73 STEEL CREEK PARK 10100 5.2 7.9 66 7.3 7.3 100 ----- ----- Basin wide percent of average 77 81 UPPER BEAR RIVER BUG LAKE 7950 5.0 10.0 50 6.8 10.4 65 HAYDEN FORK 9400 4.9 7.9 62 8.2 9.6 85 KELLEY R.S. 8180 6.0 7.8 77 7.7 10.5 73 LILY LAKE 9050 5.0 6.8 74 8.1 7.8 104 MONTE CRISTO 8960 7.6 12.9 59 10.7 13.4 80 SALT RIVER SUMMIT 7600 5.2 6.2 84 7.5 9.5 79 TRIAL LAKE 9960 5.1 12.4 41 6.5 12.1 54 ----- ----- 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.