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 TUESDAY: JANUARY 5 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.0 8.5 106 11.0 11.9 92 COTTONWOOD CREEK 7600 9.1 9.6 95 12.1 12.6 96 GRANITE CREEK 6770 7.0 7.9 89 9.0 12.5 72 GRASSY LAKE 7265 16.4 15.5 106 17.6 19.3 91 GROS VENTRE SUMMIT 8775 6.4 7.4 86 6.8 8.5 80 LEWIS LAKE DIVIDE 7860 15.0 15.1 99 17.4 19.6 89 PHILLIPS BENCH 8200 12.3 12.6 98 12.9 15.2 85 SALT RIVER SUMMIT 7600 5.0 5.6 89 7.4 9.0 82 SNAKE RIVER STATION 6920 8.2 8.3 99 10.8 13.5 80 SPRING CREEK DIVIDE 9000 11.0 12.5 88 11.6 14.1 82 THUMB DIVIDE 7980 10.2 7.8 131 10.4 11.1 94 TOGWOTEE PASS 9580 -M 11.9 * 13.8 14.6 95 TWO OCEAN PLATEAU 9360 16.7 13.4 125 15.2 16.4 93 WILLOW CREEK 8450 12.3 13.9 88 17.5 16.5 106 ----- ----- Basin wide percent of average 100 89 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.2 12.1 101 11.2 9.0 124 BLACK BEAR 7950 20.5 16.8 122 19.5 18.4 106 CANYON 7940 7.9 5.7 139 8.9 7.3 122 FISHER CREEK 9100 18.7 16.8 111 16.7 17.1 98 MADISON PLATEAU 7750 -M 10.9 * 13.6 12.4 110 NORTHEAST ENTRANCE 7350 5.4 4.3 126 7.0 6.1 115 PARKER PEAK 9400 11.6 11.1 105 -M 8.0 * SYLVAN LAKE 8420 12.2 11.4 107 14.6 10.2 143 THUMB DIVIDE 7980 10.2 7.8 131 10.4 11.1 94 TWO OCEAN PLATEAU 9360 16.7 13.4 125 15.2 16.4 93 WHISKEY CREEK 6800 8.6 7.6 113 10.9 10.3 106 WHITE MILL 8700 11.6 12.2 95 10.9 13.6 80 WOLVERINE 7650 8.2 5.6 146 6.6 6.7 99 ----- ----- Basin wide percent of average 115 105 WIND RIVER BURROUGHS CREEK 8750 8.0 7.6 105 8.8 8.5 104 COLD SPRINGS 9630 5.1 4.6 111 6.7 5.7 118 DEER PARK 9700 6.2 -M * 9.3 -M * HOBBS PARK 10100 8.3 8.0 104 8.6 7.2 119 LITTLE WARM 9620 6.3 5.4 117 7.4 6.9 107 SOUTH PASS 9040 7.1 8.7 82 8.7 8.4 104 ST. LAWRENCE ALT 8620 4.0 3.5 114 6.6 5.2 127 TOGWOTEE PASS 9580 -M 11.9 * 13.8 14.6 95 TOWNSEND CREEK 8700 4.5 4.7 96 7.1 6.1 116 ----- ----- Basin wide percent of average 102 108 BIGHORN BASIN BALD MTN. 9375 9.6 10.7 90 9.3 9.1 102 BEAR TRAP MEADOW 7900 3.3 3.8 87 6.3 4.4 143 BLACKWATER 9780 15.3 10.5 146 13.4 9.2 146 BONE SPRINGS DIV 9350 7.4 8.2 90 7.9 7.2 110 EVENING STAR 9200 16.4 13.6 121 16.9 11.4 148 GRAVE SPRINGS 8550 4.0 4.7 85 7.0 5.3 132 KIRWIN 9550 6.7 5.4 124 7.8 5.4 144 MARQUETTE 8760 5.1 4.0 128 6.2 4.8 129 MIDDLE POWDER 7760 4.0 6.0 67 9.9 6.2 160 OWL CREEK 8975 3.6 2.0 180 4.5 2.9 155 POWDER RIVER PASS 9480 5.3 5.4 98 7.2 5.9 122 SHELL CREEK 9580 8.2 7.9 104 7.1 6.7 106 SYLVAN LAKE 8420 12.2 11.4 107 14.6 10.2 143 SYLVAN ROAD 8120 8.0 6.1 131 9.7 8.4 115 TIMBER CREEK 7950 3.3 2.6 127 5.3 3.4 156 YOUNTS PEAK 8350 10.4 9.4 111 9.1 8.4 108 ----- ----- Basin wide percent of average 110 131 SHOSHONE RIVER BLACKWATER 9780 15.3 10.5 146 13.4 9.2 146 EVENING STAR 9200 16.4 13.6 121 16.9 11.4 148 KIRWIN 9550 6.7 5.4 124 7.8 5.4 144 MARQUETTE 8760 5.1 4.0 128 6.2 4.8 129 SYLVAN LAKE 8420 12.2 11.4 107 14.6 10.2 143 SYLVAN ROAD 8120 8.0 6.1 131 9.7 8.4 115 YOUNTS PEAK 8350 10.4 9.4 111 9.1 8.4 108 ----- ----- Basin wide percent of average 123 134 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.3 3.8 87 6.3 4.4 143 BIG GOOSE 7990 3.2 -M * 6.2 -M * BONE SPRINGS DIV 9350 7.4 8.2 90 7.9 7.2 110 BURGESS JUNCTION 7880 4.4 5.8 76 6.4 5.8 110 CLOUD PEAK RESERVOIR 9860 8.0 5.9 136 7.8 6.4 122 DOME LAKE 8880 4.5 6.7 67 6.3 7.1 89 GRAVE SPRINGS 8550 4.0 4.7 85 7.0 5.3 132 HANSEN SAWMILL 8760 3.2 3.5 91 5.2 4.0 130 MIDDLE POWDER 7760 4.0 6.0 67 9.9 6.2 160 POWDER RIVER PASS 9480 5.3 5.4 98 7.2 5.9 122 SUCKER CREEK 8880 5.5 5.5 100 7.8 6.8 115 TIE CREEK 6870 1.7 -M * 5.0 5.6 89 ----- ----- Basin wide percent of average 89 119 BELLE FOURCHE BLIND PARK 6890 2.8 5.6 50 9.8 5.0 196 NORTH RAPID CREEK 6130 2.7 -M * 9.4 -M * WARREN PEAK 6520 3.5 5.6 63 8.9 4.1 217 ----- ----- Basin wide percent of average 56 205 UPPER N. PLATTE RIVER COLUMBINE 9400 7.8 10.7 73 10.2 11.5 89 DIVIDE PEAK 8800 8.0 10.0 80 14.3 12.4 115 ELK RIVER 8700 4.2 8.7 48 10.8 9.3 116 JOE WRIGHT 10120 8.7 10.9 80 13.2 12.2 108 NORTH FRENCH CREEK 10100 13.0 12.0 108 15.3 11.4 134 OLD BATTLE 10000 11.3 15.5 73 16.7 14.9 112 SOUTH BRUSH CREEK 8400 4.6 5.1 90 11.8 10.0 118 TOWER 10500 16.6 22.6 73 18.0 17.7 102 WEBBER SPRINGS 9200 7.4 12.9 57 12.1 13.6 89 WILLOW CREEK PASS 9540 4.9 5.9 83 6.6 6.3 105 ----- ----- Basin wide percent of average 76 108 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 7.3 12.6 58 10.2 9.1 112 CASPER MTN. 7900 4.5 7.7 58 10.1 7.3 138 DEADMAN HILL 10220 9.2 8.4 110 9.6 7.8 123 DEER PARK 9700 6.2 -M * 9.3 -M * LAPRELE CREEK 8320 1.5 5.0 30 7.8 5.4 144 RENO HILL 8400 6.1 6.5 94 10.4 9.9 105 ROACH 9700 6.8 8.2 83 9.9 10.7 93 SAND LAKE 10080 14.3 15.9 90 15.3 9.9 155 SOUTH PASS 9040 7.1 8.7 82 8.7 8.4 104 WINDY PEAK 7840 2.1 3.4 62 8.0 4.3 186 ----- ----- Basin wide percent of average 77 124 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.3 5.3 81 9.3 7.9 118 DIVIDE PEAK 8800 8.0 10.0 80 14.3 12.4 115 OLD BATTLE 10000 11.3 15.5 73 16.7 14.9 112 SANDSTONE RS 8150 -M 6.6 * -M 9.6 * WHISKEY PARK 8950 7.6 13.6 56 13.9 12.9 108 ----- ----- Basin wide percent of average 70 113 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.2 6.5 111 6.7 8.7 77 BLIND BULL SUM 8650 11.5 13.4 86 9.9 11.7 85 EAST RIM DIVIDE 7930 5.4 6.2 87 6.1 8.1 75 ELKHART PARK G.S. 9400 5.7 6.3 90 6.4 8.5 75 GROS VENTRE SUMMIT 8775 6.4 7.4 86 6.8 8.5 80 KENDALL R.S. 7740 6.0 6.5 92 6.8 8.3 82 LOOMIS PARK 8240 7.0 7.7 91 8.4 10.1 83 NEW FORK LAKE 8340 5.0 5.1 98 5.7 7.7 74 SNIDER BASIN 8250 5.8 6.5 89 6.7 8.1 83 SPRING CREEK DIVIDE 9000 11.0 12.5 88 11.6 14.1 82 TRIPLE PEAK 8500 11.0 11.8 93 12.5 16.5 76 ----- ----- Basin wide percent of average 91 79 LOWER GREEN RIVER HAMS FORK 7840 4.1 4.9 84 4.8 7.1 68 HEWINTA 9500 3.3 4.2 79 6.1 6.7 91 HICKERSON PARK 9150 2.3 2.7 85 5.2 5.0 104 HOLE-IN-ROCK 9150 3.0 2.4 125 5.7 5.0 114 INDIAN CREEK 9425 10.2 12.5 82 9.1 13.3 68 KELLEY R.S. 8180 6.0 7.2 83 7.6 10.0 76 STEEL CREEK PARK 10100 5.1 7.6 67 7.3 7.0 104 ----- ----- Basin wide percent of average 82 85 UPPER BEAR RIVER BUG LAKE 7950 5.2 9.4 55 6.8 9.9 69 HAYDEN FORK 9400 4.8 7.3 66 8.7 9.2 95 KELLEY R.S. 8180 6.0 7.2 83 7.6 10.0 76 LILY LAKE 9050 4.8 6.5 74 8.0 7.5 107 MONTE CRISTO 8960 7.6 11.9 64 10.7 12.8 84 SALT RIVER SUMMIT 7600 5.0 5.6 89 7.4 9.0 82 TRIAL LAKE 9960 5.1 11.6 44 6.5 11.5 57 ----- ----- Basin wide percent of average 65 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.