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 14 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.6 9.9 107 12.8 13.3 96 COTTONWOOD CREEK 7600 9.7 11.3 86 12.9 14.2 91 GRANITE CREEK 6770 7.7 9.6 80 9.6 14.1 68 GRASSY LAKE 7265 19.5 18.2 107 20.6 21.6 95 GROS VENTRE SUMMIT 8775 6.5 8.6 76 7.0 9.5 74 LEWIS LAKE DIVIDE 7860 17.4 17.9 97 19.4 22.0 88 PHILLIPS BENCH 8200 13.9 15.0 93 14.4 17.2 84 SALT RIVER SUMMIT 7600 5.3 6.9 77 7.6 10.1 75 SNAKE RIVER STATION 6920 10.2 9.8 104 12.8 15.2 84 SPRING CREEK DIVIDE 9000 11.8 14.5 81 12.4 15.9 78 THUMB DIVIDE 7980 10.7 9.2 116 10.9 12.5 87 TOGWOTEE PASS 9580 -M 13.7 * 15.7 16.4 96 TWO OCEAN PLATEAU 9360 18.3 15.1 121 16.4 18.4 89 WILLOW CREEK 8450 13.4 16.5 81 18.7 18.6 101 ----- ----- Basin wide percent of average 95 87 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 15.0 13.5 111 13.6 10.0 136 BLACK BEAR 7950 22.9 19.5 117 21.2 21.1 100 CANYON 7940 9.1 6.7 136 10.2 8.2 124 FISHER CREEK 9100 22.3 19.5 114 19.9 19.6 102 MADISON PLATEAU 7750 -M 12.8 * 14.9 14.0 106 NORTHEAST ENTRANCE 7350 6.6 5.1 129 8.5 6.8 125 PARKER PEAK 9400 13.3 12.3 108 -M 8.8 * SYLVAN LAKE 8420 14.8 12.7 117 17.3 11.2 154 THUMB DIVIDE 7980 10.7 9.2 116 10.9 12.5 87 TWO OCEAN PLATEAU 9360 18.3 15.1 121 16.4 18.4 89 WHISKEY CREEK 6800 9.7 8.9 109 12.3 11.7 105 WHITE MILL 8700 14.1 13.9 101 13.0 15.5 84 WOLVERINE 7650 9.5 6.4 148 7.7 7.4 104 ----- ----- Basin wide percent of average 116 106 WIND RIVER BURROUGHS CREEK 8750 8.8 8.6 102 9.6 9.4 102 COLD SPRINGS 9630 5.2 5.0 104 6.9 6.1 113 DEER PARK 9700 6.1 -M * 9.2 -M * HOBBS PARK 10100 8.2 8.8 93 8.6 7.9 109 LITTLE WARM 9620 7.0 6.0 117 8.0 7.6 105 SOUTH PASS 9040 7.1 9.7 73 8.7 9.2 95 ST. LAWRENCE ALT 8620 3.8 4.0 95 6.6 5.5 120 TOGWOTEE PASS 9580 -M 13.7 * 15.7 16.4 96 TOWNSEND CREEK 8700 4.2 5.2 81 6.7 6.6 102 ----- ----- Basin wide percent of average 94 103 BIGHORN BASIN BALD MTN. 9375 12.6 11.9 106 11.8 10.0 118 BEAR TRAP MEADOW 7900 3.9 4.2 93 6.6 4.8 138 BLACKWATER 9780 16.7 11.8 142 14.8 10.2 145 BONE SPRINGS DIV 9350 9.5 9.1 104 9.7 7.9 123 EVENING STAR 9200 19.6 15.2 129 20.6 12.7 162 GRAVE SPRINGS 8550 4.3 5.2 83 7.4 5.6 132 KIRWIN 9550 6.7 5.9 114 8.0 5.9 136 MARQUETTE 8760 5.0 4.5 111 6.0 5.2 115 MIDDLE POWDER 7760 4.4 6.7 66 10.6 6.8 156 OWL CREEK 8975 3.5 2.4 146 4.2 3.2 131 POWDER RIVER PASS 9480 7.3 5.9 124 9.3 6.5 143 SHELL CREEK 9580 10.8 8.8 123 9.8 7.4 132 SYLVAN LAKE 8420 14.8 12.7 117 17.3 11.2 154 SYLVAN ROAD 8120 9.9 6.9 143 11.9 9.3 128 TIMBER CREEK 7950 3.3 3.0 110 5.3 3.7 143 YOUNTS PEAK 8350 11.6 10.4 112 10.1 9.4 107 ----- ----- Basin wide percent of average 115 136 SHOSHONE RIVER BLACKWATER 9780 16.7 11.8 142 14.8 10.2 145 EVENING STAR 9200 19.6 15.2 129 20.6 12.7 162 KIRWIN 9550 6.7 5.9 114 8.0 5.9 136 MARQUETTE 8760 5.0 4.5 111 6.0 5.2 115 SYLVAN LAKE 8420 14.8 12.7 117 17.3 11.2 154 SYLVAN ROAD 8120 9.9 6.9 143 11.9 9.3 128 YOUNTS PEAK 8350 11.6 10.4 112 10.1 9.4 107 ----- ----- Basin wide percent of average 125 139 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.9 4.2 93 6.6 4.8 138 BIG GOOSE 7990 3.5 -M * 6.3 -M * BONE SPRINGS DIV 9350 9.5 9.1 104 9.7 7.9 123 BURGESS JUNCTION 7880 4.9 6.4 77 6.9 6.2 111 CLOUD PEAK RESERVOIR 9860 9.1 6.6 138 8.1 6.9 117 DOME LAKE 8880 5.0 7.5 67 7.1 7.7 92 GRAVE SPRINGS 8550 4.3 5.2 83 7.4 5.6 132 HANSEN SAWMILL 8760 3.3 3.9 85 5.6 4.4 127 MIDDLE POWDER 7760 4.4 6.7 66 10.6 6.8 156 POWDER RIVER PASS 9480 7.3 5.9 124 9.3 6.5 143 SUCKER CREEK 8880 6.2 6.1 102 8.3 7.4 112 TIE CREEK 6870 2.1 -M * 5.6 6.0 93 ----- ----- Basin wide percent of average 94 121 BELLE FOURCHE BLIND PARK 6890 4.4 6.1 72 11.5 5.3 217 NORTH RAPID CREEK 6130 3.7 -M * 10.3 -M * WARREN PEAK 6520 5.1 6.1 84 10.4 4.4 236 ----- ----- Basin wide percent of average 78 226 UPPER N. PLATTE RIVER COLUMBINE 9400 9.3 12.6 74 11.2 13.1 85 DIVIDE PEAK 8800 9.1 11.3 81 14.9 13.7 109 ELK RIVER 8700 6.1 10.1 60 12.1 10.4 116 JOE WRIGHT 10120 9.9 12.0 83 14.7 13.7 107 NORTH FRENCH CREEK 10100 16.0 13.4 119 17.8 12.7 140 OLD BATTLE 10000 12.4 17.2 72 18.3 16.4 112 SOUTH BRUSH CREEK 8400 5.5 5.8 95 13.1 10.2 128 TOWER 10500 19.2 24.4 79 20.1 19.8 102 WEBBER SPRINGS 9200 8.6 14.5 59 13.5 14.6 92 WILLOW CREEK PASS 9540 4.8 6.4 75 6.4 6.8 94 ----- ----- Basin wide percent of average 79 108 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.6 13.9 69 12.3 10.1 122 CASPER MTN. 7900 4.6 8.2 56 10.2 7.7 132 DEADMAN HILL 10220 -M 9.4 * 10.5 8.6 122 DEER PARK 9700 6.1 -M * 9.2 -M * LAPRELE CREEK 8320 1.6 5.5 29 7.9 6.1 130 RENO HILL 8400 6.5 7.2 90 10.9 10.4 105 ROACH 9700 8.1 9.2 88 11.1 11.9 93 SAND LAKE 10080 17.2 17.8 97 17.3 10.9 159 SOUTH PASS 9040 7.1 9.7 73 8.7 9.2 95 WINDY PEAK 7840 2.2 3.7 59 7.9 4.9 161 ----- ----- Basin wide percent of average 76 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.3 6.0 88 9.8 8.9 110 DIVIDE PEAK 8800 9.1 11.3 81 14.9 13.7 109 OLD BATTLE 10000 12.4 17.2 72 18.3 16.4 112 SANDSTONE RS 8150 4.9 7.6 64 11.5 10.8 106 WHISKEY PARK 8950 10.6 15.3 69 15.8 15.2 104 ----- ----- Basin wide percent of average 74 108 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.2 7.7 94 6.6 9.8 67 BLIND BULL SUM 8650 12.2 15.6 78 10.2 13.4 76 EAST RIM DIVIDE 7930 5.7 7.3 78 6.3 9.1 69 ELKHART PARK G.S. 9400 5.9 7.3 81 6.6 9.6 69 GROS VENTRE SUMMIT 8775 6.5 8.6 76 7.0 9.5 74 KENDALL R.S. 7740 6.1 7.9 77 6.8 9.3 73 LOOMIS PARK 8240 7.3 9.1 80 8.8 11.3 78 NEW FORK LAKE 8340 5.1 6.1 84 5.7 8.7 66 SNIDER BASIN 8250 6.0 7.8 77 6.8 9.1 75 SPRING CREEK DIVIDE 9000 11.8 14.5 81 12.4 15.9 78 TRIPLE PEAK 8500 11.3 13.8 82 13.1 18.6 70 ----- ----- Basin wide percent of average 81 73 LOWER GREEN RIVER HAMS FORK 7840 4.0 6.2 65 4.8 8.0 60 HEWINTA 9500 3.3 5.0 66 6.2 7.2 86 HICKERSON PARK 9150 2.3 3.0 77 5.1 5.3 96 HOLE-IN-ROCK 9150 3.0 2.7 111 5.5 5.3 104 INDIAN CREEK 9425 10.6 14.6 73 9.4 15.0 63 KELLEY R.S. 8180 6.0 8.5 71 7.6 11.2 68 STEEL CREEK PARK 10100 5.2 8.4 62 7.3 7.6 96 ----- ----- Basin wide percent of average 71 77 UPPER BEAR RIVER BUG LAKE 7950 4.7 10.8 44 6.8 10.9 62 HAYDEN FORK 9400 4.9 8.6 57 7.9 10.1 78 KELLEY R.S. 8180 6.0 8.5 71 7.6 11.2 68 LILY LAKE 9050 5.0 7.1 70 8.1 8.2 99 MONTE CRISTO 8960 7.8 14.1 55 10.7 14.1 76 SALT RIVER SUMMIT 7600 5.3 6.9 77 7.6 10.1 75 TRIAL LAKE 9960 5.0 13.4 37 6.4 12.8 50 ----- ----- Basin wide percent of average 56 71 ----------------------------------------------------------------------------- -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.