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 20 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 12.2 10.8 113 14.5 14.3 101 COTTONWOOD CREEK 7600 13.1 12.2 107 14.4 15.2 95 GRANITE CREEK 6770 11.7 10.5 111 13.7 15.1 91 GRASSY LAKE 7265 21.1 19.8 107 21.9 23.2 94 GROS VENTRE SUMMIT 8775 7.0 9.3 75 8.1 10.2 79 LEWIS LAKE DIVIDE 7860 18.9 19.6 96 20.9 23.6 89 PHILLIPS BENCH 8200 17.2 16.5 104 17.2 18.6 92 SALT RIVER SUMMIT 7600 9.8 7.6 129 11.5 10.8 106 SNAKE RIVER STATION 6920 11.5 10.7 107 14.4 16.4 88 SPRING CREEK DIVIDE 9000 14.5 15.7 92 14.3 17.0 84 THUMB DIVIDE 7980 10.2 9.9 103 11.5 13.4 86 TOGWOTEE PASS 9580 13.4 14.8 91 15.5 17.7 88 TWO OCEAN PLATEAU 9360 18.8 16.2 116 16.9 19.8 85 WILLOW CREEK 8450 16.7 18.0 93 19.2 20.0 96 ----- ----- Basin wide percent of average 102 91 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 14.0 14.4 97 12.0 10.7 112 BLACK BEAR 7950 24.2 21.2 114 22.1 22.9 97 CANYON 7940 8.6 7.2 119 9.4 8.7 108 FISHER CREEK 9100 20.6 21.1 98 18.4 21.3 86 MADISON PLATEAU 7750 12.9 13.9 93 14.3 15.1 95 NORTHEAST ENTRANCE 7350 4.9 5.6 88 -M 7.3 * PARKER PEAK 9400 12.1 13.0 93 10.5 9.4 112 SYLVAN LAKE 8420 10.5 13.4 78 13.0 11.9 109 THUMB DIVIDE 7980 10.2 9.9 103 11.5 13.4 86 TWO OCEAN PLATEAU 9360 18.8 16.2 116 16.9 19.8 85 WHISKEY CREEK 6800 8.9 9.6 93 11.4 12.6 90 WHITE MILL 8700 15.8 14.9 106 14.8 16.8 88 WOLVERINE 7650 7.2 6.9 104 7.8 7.9 99 ----- ----- Basin wide percent of average 101 95 WIND RIVER BURROUGHS CREEK 8750 11.0 9.2 120 12.0 10.1 119 COLD SPRINGS 9630 6.5 5.3 123 7.2 6.4 112 DEER PARK 9700 -M -M * 12.4 -M * HOBBS PARK 10100 9.1 9.2 99 8.1 8.3 98 LITTLE WARM 9620 6.8 6.4 106 8.5 8.0 106 SOUTH PASS 9040 9.5 10.2 93 10.5 9.7 108 ST. LAWRENCE ALT 8620 6.6 4.2 157 6.4 5.8 110 TOGWOTEE PASS 9580 13.4 14.8 91 15.5 17.7 88 TOWNSEND CREEK 8700 6.8 5.6 121 8.3 7.0 119 ----- ----- Basin wide percent of average 107 105 BIGHORN BASIN BALD MTN. 9375 12.2 12.5 98 10.9 10.5 104 BEAR TRAP MEADOW 7900 3.2 4.4 73 4.1 5.0 82 BLACKWATER 9780 14.8 12.5 118 12.8 10.9 117 BONE SPRINGS DIV 9350 9.8 9.6 102 10.2 8.4 121 EVENING STAR 9200 16.0 16.1 99 17.4 13.6 128 GRAVE SPRINGS 8550 3.9 -M * 4.5 5.9 76 KIRWIN 9550 9.1 6.1 149 10.1 6.2 163 MARQUETTE 8760 8.5 4.7 181 8.8 5.4 163 MIDDLE POWDER 7760 4.8 7.1 68 5.4 7.1 76 OWL CREEK 8975 4.0 2.5 160 4.1 3.4 121 POWDER RIVER PASS 9480 5.9 6.3 94 6.8 6.9 99 SHELL CREEK 9580 8.5 9.3 91 6.6 7.9 84 SYLVAN LAKE 8420 10.5 13.4 78 13.0 11.9 109 SYLVAN ROAD 8120 7.1 7.4 96 10.7 9.9 108 TIMBER CREEK 7950 5.5 3.2 172 6.8 3.9 174 YOUNTS PEAK 8350 11.2 11.0 102 11.1 10.0 111 ----- ----- Basin wide percent of average 104 113 SHOSHONE RIVER BLACKWATER 9780 14.8 12.5 118 12.8 10.9 117 EVENING STAR 9200 16.0 16.1 99 17.4 13.6 128 KIRWIN 9550 9.1 6.1 149 10.1 6.2 163 MARQUETTE 8760 8.5 4.7 181 8.8 5.4 163 SYLVAN LAKE 8420 10.5 13.4 78 13.0 11.9 109 SYLVAN ROAD 8120 7.1 7.4 96 10.7 9.9 108 YOUNTS PEAK 8350 11.2 11.0 102 11.1 10.0 111 ----- ----- Basin wide percent of average 108 124 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.2 4.4 73 4.1 5.0 82 BONE SPRINGS DIV 9350 9.8 9.6 102 10.2 8.4 121 BURGESS JUNCTION 7880 6.3 6.8 93 7.5 6.5 115 CLOUD PEAK RESERVOIR 9860 7.7 7.1 108 8.5 7.3 116 DOME LAKE 8880 6.5 8.0 81 8.5 8.0 106 GRAVE SPRINGS 8550 3.9 -M * 4.5 5.9 76 HANSEN SAWMILL 8760 4.4 4.1 107 5.1 4.6 111 MIDDLE POWDER 7760 4.8 7.1 68 5.4 7.1 76 POWDER RIVER PASS 9480 5.9 6.3 94 6.8 6.9 99 SUCKER CREEK 8880 7.2 6.6 109 8.8 7.8 113 TIE CREEK 6870 4.9 -M * 8.3 6.3 132 ----- ----- Basin wide percent of average 93 105 BELLE FOURCHE BLIND PARK 6890 4.9 6.5 75 7.3 5.6 130 NORTH RAPID CREEK 6130 5.0 -M * 5.8 -M * WARREN PEAK 6520 5.2 6.5 80 5.9 4.7 126 ----- ----- Basin wide percent of average 78 128 UPPER N. PLATTE RIVER COLUMBINE 9400 12.2 13.7 89 13.4 14.2 94 DIVIDE PEAK 8800 9.1 12.0 76 11.7 14.5 81 ELK RIVER 8700 8.3 10.9 76 9.6 11.1 86 JOE WRIGHT 10120 11.9 12.7 94 14.4 14.6 99 NORTH FRENCH CREEK 10100 14.5 14.3 101 14.6 13.5 108 OLD BATTLE 10000 16.6 18.3 91 20.8 17.4 120 SOUTH BRUSH CREEK 8400 4.6 6.3 73 5.4 10.4 52 TOWER 10500 23.3 26.2 89 22.7 21.2 107 WEBBER SPRINGS 9200 12.2 15.5 79 15.7 15.3 103 WILLOW CREEK PASS 9540 4.0 6.7 60 4.5 7.1 63 ----- ----- Basin wide percent of average 85 95 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 10.6 14.6 73 12.0 10.7 112 CASPER MTN. 7900 7.7 8.6 90 7.8 8.0 98 DEADMAN HILL 10220 9.3 10.0 93 8.8 9.2 96 DEER PARK 9700 -M -M * 12.4 -M * LAPRELE CREEK 8320 5.0 5.9 85 6.1 6.6 92 RENO HILL 8400 7.8 7.6 103 7.0 10.7 65 ROACH 9700 8.4 9.8 86 10.5 12.7 83 SAND LAKE 10080 14.6 18.9 77 13.6 11.6 117 SOUTH PASS 9040 9.5 10.2 93 10.5 9.7 108 WINDY PEAK 7840 3.9 3.9 100 5.1 5.2 98 ----- ----- Basin wide percent of average 86 96 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.9 6.5 75 8.5 9.6 89 DIVIDE PEAK 8800 9.1 12.0 76 11.7 14.5 81 OLD BATTLE 10000 16.6 18.3 91 20.8 17.4 120 SANDSTONE RS 8150 7.8 8.2 95 10.9 11.6 94 WHISKEY PARK 8950 15.0 16.4 91 16.6 16.8 99 ----- ----- Basin wide percent of average 87 98 UPPER GREEN RIVER BIG SANDY OPENING 9100 6.9 8.3 83 6.4 10.5 61 BLIND BULL SUM 8650 16.2 16.7 97 12.7 14.5 88 EAST RIM DIVIDE 7930 6.9 8.0 86 7.1 9.7 73 ELKHART PARK G.S. 9400 7.7 7.8 99 8.1 10.3 79 GROS VENTRE SUMMIT 8775 7.0 9.3 75 8.1 10.2 79 KENDALL R.S. 7740 9.5 8.6 110 9.8 9.9 99 LOOMIS PARK 8240 9.1 10.0 91 10.0 12.1 83 NEW FORK LAKE 8340 6.5 6.7 97 6.6 9.3 71 SNIDER BASIN 8250 7.8 8.5 92 8.2 9.7 85 SPRING CREEK DIVIDE 9000 14.5 15.7 92 14.3 17.0 84 TRIPLE PEAK 8500 14.6 15.0 97 14.9 20.0 75 ----- ----- Basin wide percent of average 93 80 LOWER GREEN RIVER HAMS FORK 7840 7.4 6.8 109 6.4 8.6 74 HEWINTA 9500 7.4 5.4 137 9.6 7.6 126 HICKERSON PARK 9150 5.8 3.1 187 8.1 5.5 147 HOLE-IN-ROCK 9150 4.4 2.8 157 7.1 5.5 129 INDIAN CREEK 9425 14.7 15.7 94 11.7 16.1 73 KELLEY R.S. 8180 10.2 9.2 111 10.6 12.0 88 STEEL CREEK PARK 10100 8.8 8.9 99 11.0 7.9 139 ----- ----- Basin wide percent of average 113 102 UPPER BEAR RIVER BUG LAKE 7950 13.7 11.5 119 12.9 11.5 112 HAYDEN FORK 9400 8.4 9.1 92 12.6 10.7 118 KELLEY R.S. 8180 10.2 9.2 111 10.6 12.0 88 LILY LAKE 9050 8.0 7.5 107 10.1 8.6 117 MONTE CRISTO 8960 18.6 15.2 122 16.9 14.9 113 SALT RIVER SUMMIT 7600 9.8 7.6 129 11.5 10.8 106 TRIAL LAKE 9960 12.4 14.2 87 13.0 13.6 96 ----- ----- Basin wide percent of average 109 107 ----------------------------------------------------------------------------- -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.