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: DECEMBER 30 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 5.6 7.6 74 7.7 10.9 71 COTTONWOOD CREEK 7600 5.7 8.5 67 7.3 11.6 63 GRANITE CREEK 6770 4.4 7.0 63 6.7 11.5 58 GRASSY LAKE 7265 11.9 13.8 86 13.4 17.7 76 GROS VENTRE SUMMIT 8775 2.4 6.7 36 4.0 7.8 51 LEWIS LAKE DIVIDE 7860 10.1 13.4 75 12.0 18.0 67 PHILLIPS BENCH 8200 7.2 11.1 65 8.3 13.9 60 SALT RIVER SUMMIT 7600 3.7 4.9 76 6.2 8.3 75 SNAKE RIVER STATION 6920 -M 7.4 * -M 12.4 * SPRING CREEK DIVIDE 9000 5.5 11.3 49 6.3 12.9 49 THUMB DIVIDE 7980 -M 7.0 * -M 10.2 * TOGWOTEE PASS 9580 8.9 10.8 82 9.1 13.4 68 TWO OCEAN PLATEAU 9360 11.1 12.3 90 11.0 15.1 73 WILLOW CREEK 8450 6.9 12.4 56 10.0 15.2 66 ----- ----- Basin wide percent of average 70 65 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 9.4 11.2 84 7.8 8.3 94 BLACK BEAR 7950 12.7 15.1 84 12.8 16.7 77 CANYON 7940 4.5 5.1 88 6.3 6.7 94 FISHER CREEK 9100 12.8 15.2 84 11.8 15.6 76 MADISON PLATEAU 7750 6.5 9.8 66 8.0 11.4 70 NORTHEAST ENTRANCE 7350 2.3 3.9 59 6.2 5.7 109 PARKER PEAK 9400 8.2 10.4 79 7.3 7.4 99 SYLVAN LAKE 8420 7.1 10.6 67 9.1 9.6 95 THUMB DIVIDE 7980 -M 7.0 * -M 10.2 * TWO OCEAN PLATEAU 9360 11.1 12.3 90 11.0 15.1 73 WHISKEY CREEK 6800 4.1 6.8 60 6.3 9.4 67 WHITE MILL 8700 10.3 11.1 93 10.1 12.5 81 WOLVERINE 7650 3.9 5.0 78 5.2 6.3 83 ----- ----- Basin wide percent of average 80 82 WIND RIVER BURROUGHS CREEK 8750 5.9 6.9 86 6.7 7.9 85 COLD SPRINGS 9630 4.8 4.3 112 5.4 5.4 100 DEER PARK 9700 -M -M * 7.6 -M * HOBBS PARK 10100 6.2 7.5 83 6.5 6.7 97 LITTLE WARM 9620 3.7 5.0 74 5.2 6.5 80 SOUTH PASS 9040 5.7 8.1 70 6.9 7.8 88 ST. LAWRENCE ALT 8620 5.3 3.2 166 5.3 4.9 108 TOGWOTEE PASS 9580 8.9 10.8 82 9.1 13.4 68 TOWNSEND CREEK 8700 5.3 4.4 120 6.8 5.7 119 ----- ----- Basin wide percent of average 91 89 BIGHORN BASIN BALD MTN. 9375 9.1 9.9 92 8.1 8.5 95 BEAR TRAP MEADOW 7900 2.4 3.6 67 3.3 4.2 79 BLACKWATER 9780 9.7 9.6 101 8.7 8.6 101 BONE SPRINGS DIV 9350 7.9 7.6 104 8.4 6.7 125 EVENING STAR 9200 10.0 12.7 79 11.8 10.5 112 GRAVE SPRINGS 8550 2.7 -M * 3.6 5.0 72 KIRWIN 9550 5.8 5.1 114 6.5 5.1 127 MARQUETTE 8760 6.8 3.7 184 7.2 4.6 157 MIDDLE POWDER 7760 3.5 5.6 63 4.5 5.9 76 OWL CREEK 8975 3.2 1.8 178 3.3 2.7 122 POWDER RIVER PASS 9480 4.3 5.0 86 5.1 5.5 93 SHELL CREEK 9580 6.8 7.3 93 5.1 6.3 81 SYLVAN LAKE 8420 7.1 10.6 67 9.1 9.6 95 SYLVAN ROAD 8120 3.7 5.7 65 7.2 7.8 92 TIMBER CREEK 7950 4.6 2.3 200 5.7 3.2 178 YOUNTS PEAK 8350 6.6 8.7 76 6.7 7.8 86 ----- ----- Basin wide percent of average 92 102 SHOSHONE RIVER BLACKWATER 9780 9.7 9.6 101 8.7 8.6 101 EVENING STAR 9200 10.0 12.7 79 11.8 10.5 112 KIRWIN 9550 5.8 5.1 114 6.5 5.1 127 MARQUETTE 8760 6.8 3.7 184 7.2 4.6 157 SYLVAN LAKE 8420 7.1 10.6 67 9.1 9.6 95 SYLVAN ROAD 8120 3.7 5.7 65 7.2 7.8 92 YOUNTS PEAK 8350 6.6 8.7 76 6.7 7.8 86 ----- ----- Basin wide percent of average 89 106 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.4 3.6 67 3.3 4.2 79 BONE SPRINGS DIV 9350 7.9 7.6 104 8.4 6.7 125 BURGESS JUNCTION 7880 4.8 5.4 89 6.0 5.5 109 CLOUD PEAK RESERVOIR 9860 5.5 5.5 100 6.5 6.0 108 DOME LAKE 8880 5.2 6.2 84 7.0 6.8 103 GRAVE SPRINGS 8550 2.7 -M * 3.6 5.0 72 HANSEN SAWMILL 8760 3.1 3.2 97 3.7 3.8 97 MIDDLE POWDER 7760 3.5 5.6 63 4.5 5.9 76 POWDER RIVER PASS 9480 4.3 5.0 86 5.1 5.5 93 SUCKER CREEK 8880 5.6 5.0 112 7.4 6.4 116 TIE CREEK 6870 3.6 -M * 6.7 5.3 126 ----- ----- Basin wide percent of average 90 102 BELLE FOURCHE BLIND PARK 6890 4.3 5.2 83 6.5 4.7 138 NORTH RAPID CREEK 6130 4.4 -M * 4.8 -M * WARREN PEAK 6520 4.2 5.2 81 4.8 3.8 126 ----- ----- Basin wide percent of average 82 133 UPPER N. PLATTE RIVER COLUMBINE 9400 6.5 9.5 68 8.7 10.5 83 DIVIDE PEAK 8800 6.2 9.3 67 8.4 11.6 72 ELK RIVER 8700 3.4 7.8 44 6.9 8.6 80 JOE WRIGHT 10120 8.6 10.2 84 10.6 11.4 93 NORTH FRENCH CREEK 10100 9.8 11.1 88 10.6 10.6 100 OLD BATTLE 10000 9.0 14.4 62 12.6 13.9 91 SOUTH BRUSH CREEK 8400 3.0 4.7 64 4.4 9.6 46 TOWER 10500 14.3 21.3 67 13.9 16.3 85 WEBBER SPRINGS 9200 6.2 11.9 52 9.4 12.9 73 WILLOW CREEK PASS 9540 3.4 5.5 62 3.9 6.0 65 ----- ----- Basin wide percent of average 67 80 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 6.5 11.7 56 7.9 8.4 94 CASPER MTN. 7900 6.5 7.4 88 6.7 7.0 96 DEADMAN HILL 10220 7.7 7.7 100 6.4 7.3 88 DEER PARK 9700 -M -M * 7.6 -M * LAPRELE CREEK 8320 3.6 4.6 78 4.8 5.0 96 RENO HILL 8400 6.3 6.1 103 5.8 9.5 61 ROACH 9700 5.9 7.5 79 7.7 9.9 78 SAND LAKE 10080 10.3 14.7 70 10.0 9.2 109 SOUTH PASS 9040 5.7 8.1 70 6.9 7.8 88 WINDY PEAK 7840 2.9 3.2 91 4.1 4.0 102 ----- ----- Basin wide percent of average 78 89 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.2 4.8 46 6.2 7.3 85 DIVIDE PEAK 8800 6.2 9.3 67 8.4 11.6 72 OLD BATTLE 10000 9.0 14.4 62 12.6 13.9 91 SANDSTONE RS 8150 3.5 6.0 58 6.8 8.8 77 WHISKEY PARK 8950 6.6 12.4 53 9.9 11.4 87 ----- ----- Basin wide percent of average 59 83 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.9 5.8 67 3.7 8.0 46 BLIND BULL SUM 8650 6.6 12.2 54 5.3 10.6 50 EAST RIM DIVIDE 7930 2.9 5.5 53 3.3 7.4 45 ELKHART PARK G.S. 9400 3.8 5.6 68 4.2 7.8 54 GROS VENTRE SUMMIT 8775 2.4 6.7 36 4.0 7.8 51 KENDALL R.S. 7740 3.7 5.7 65 4.5 7.6 59 LOOMIS PARK 8240 3.6 6.8 53 4.2 9.2 46 NEW FORK LAKE 8340 2.9 4.4 66 3.7 7.1 52 SNIDER BASIN 8250 2.9 5.8 50 3.8 7.4 51 SPRING CREEK DIVIDE 9000 5.5 11.3 49 6.3 12.9 49 TRIPLE PEAK 8500 5.9 10.6 56 6.5 15.2 43 ----- ----- Basin wide percent of average 55 49 LOWER GREEN RIVER HAMS FORK 7840 2.9 4.1 71 3.5 6.5 54 HEWINTA 9500 3.6 3.8 95 7.6 6.3 121 HICKERSON PARK 9150 4.6 2.5 184 7.7 4.7 164 HOLE-IN-ROCK 9150 3.7 2.3 161 6.3 4.7 134 INDIAN CREEK 9425 6.3 11.3 56 5.3 12.3 43 KELLEY R.S. 8180 4.0 6.5 62 4.8 9.1 53 STEEL CREEK PARK 10100 5.8 7.0 83 9.3 6.7 139 ----- ----- Basin wide percent of average 82 88 UPPER BEAR RIVER BUG LAKE 7950 5.0 8.6 58 6.7 9.3 72 HAYDEN FORK 9400 4.0 6.6 61 7.9 8.6 92 KELLEY R.S. 8180 4.0 6.5 62 4.8 9.1 53 LILY LAKE 9050 4.8 6.0 80 7.1 7.1 100 MONTE CRISTO 8960 8.6 10.7 80 8.4 12.0 70 SALT RIVER SUMMIT 7600 3.7 4.9 76 6.2 8.3 75 TRIAL LAKE 9960 4.8 10.5 46 6.0 10.8 56 ----- ----- Basin wide percent of average 65 72 ----------------------------------------------------------------------------- -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.