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 FRIDAY: JANUARY 16 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 11.5 10.2 113 13.7 13.7 100 COTTONWOOD CREEK 7600 11.0 11.6 95 12.5 14.5 86 GRANITE CREEK 6770 10.0 9.9 101 12.3 14.4 85 GRASSY LAKE 7265 19.6 18.8 104 20.8 22.2 94 GROS VENTRE SUMMIT 8775 6.2 8.8 70 7.4 9.7 76 LEWIS LAKE DIVIDE 7860 17.7 18.5 96 19.7 22.6 87 PHILLIPS BENCH 8200 15.4 15.5 99 16.0 17.7 90 SALT RIVER SUMMIT 7600 8.5 7.1 120 10.3 10.3 100 SNAKE RIVER STATION 6920 10.7 10.1 106 13.5 15.6 87 SPRING CREEK DIVIDE 9000 12.2 14.9 82 12.3 16.3 75 THUMB DIVIDE 7980 9.7 9.4 103 11.0 12.8 86 TOGWOTEE PASS 9580 12.0 14.1 85 14.4 16.8 86 TWO OCEAN PLATEAU 9360 17.8 15.5 115 16.7 18.9 88 WILLOW CREEK 8450 14.6 17.0 86 17.1 19.1 90 ----- ----- Basin wide percent of average 98 88 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.8 13.8 93 11.0 10.2 108 BLACK BEAR 7950 22.7 20.1 113 21.2 21.7 98 CANYON 7940 7.7 6.9 112 8.7 8.4 104 FISHER CREEK 9100 19.1 20.1 95 17.0 20.2 84 MADISON PLATEAU 7750 12.0 13.2 91 13.2 14.4 92 NORTHEAST ENTRANCE 7350 4.4 5.3 83 8.4 7.0 120 PARKER PEAK 9400 11.5 12.5 92 10.0 9.0 111 SYLVAN LAKE 8420 9.7 12.9 75 12.1 11.4 106 THUMB DIVIDE 7980 9.7 9.4 103 11.0 12.8 86 TWO OCEAN PLATEAU 9360 17.8 15.5 115 16.7 18.9 88 WHISKEY CREEK 6800 8.2 9.1 90 10.6 12.0 88 WHITE MILL 8700 14.7 14.3 103 13.9 15.9 87 WOLVERINE 7650 6.5 6.6 98 7.4 7.6 97 ----- ----- Basin wide percent of average 98 95 WIND RIVER BURROUGHS CREEK 8750 10.1 8.8 115 11.1 9.6 116 COLD SPRINGS 9630 6.0 5.1 118 6.8 6.2 110 DEER PARK 9700 -M -M * 11.7 -M * HOBBS PARK 10100 8.6 9.0 96 7.9 8.0 99 LITTLE WARM 9620 5.9 6.2 95 7.6 7.7 99 SOUTH PASS 9040 9.0 9.9 91 10.2 9.4 109 ST. LAWRENCE ALT 8620 6.3 4.0 158 6.3 5.6 113 TOGWOTEE PASS 9580 12.0 14.1 85 14.4 16.8 86 TOWNSEND CREEK 8700 6.6 5.4 122 8.0 6.8 118 ----- ----- Basin wide percent of average 103 103 BIGHORN BASIN BALD MTN. 9375 11.3 12.1 93 10.2 10.2 100 BEAR TRAP MEADOW 7900 2.8 4.2 67 3.6 4.8 75 BLACKWATER 9780 13.7 12.0 114 12.0 10.4 115 BONE SPRINGS DIV 9350 9.1 9.3 98 9.5 8.1 117 EVENING STAR 9200 14.9 15.5 96 16.3 13.0 125 GRAVE SPRINGS 8550 3.4 -M * 4.1 5.7 72 KIRWIN 9550 8.6 5.9 146 9.6 6.0 160 MARQUETTE 8760 8.1 4.5 180 8.4 5.2 162 MIDDLE POWDER 7760 4.1 6.9 59 5.2 6.9 75 OWL CREEK 8975 3.8 2.4 158 3.6 3.3 109 POWDER RIVER PASS 9480 5.3 6.1 87 6.1 6.7 91 SHELL CREEK 9580 7.9 9.0 88 6.2 7.6 82 SYLVAN LAKE 8420 9.7 12.9 75 12.1 11.4 106 SYLVAN ROAD 8120 6.4 7.1 90 10.1 9.5 106 TIMBER CREEK 7950 5.4 3.0 180 6.7 3.7 181 YOUNTS PEAK 8350 10.4 10.6 98 10.2 9.6 106 ----- ----- Basin wide percent of average 100 110 SHOSHONE RIVER BLACKWATER 9780 13.7 12.0 114 12.0 10.4 115 EVENING STAR 9200 14.9 15.5 96 16.3 13.0 125 KIRWIN 9550 8.6 5.9 146 9.6 6.0 160 MARQUETTE 8760 8.1 4.5 180 8.4 5.2 162 SYLVAN LAKE 8420 9.7 12.9 75 12.1 11.4 106 SYLVAN ROAD 8120 6.4 7.1 90 10.1 9.5 106 YOUNTS PEAK 8350 10.4 10.6 98 10.2 9.6 106 ----- ----- Basin wide percent of average 105 121 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.8 4.2 67 3.6 4.8 75 BONE SPRINGS DIV 9350 9.1 9.3 98 9.5 8.1 117 BURGESS JUNCTION 7880 -M 6.6 * 7.2 6.3 114 CLOUD PEAK RESERVOIR 9860 7.3 6.8 107 8.0 7.1 113 DOME LAKE 8880 6.1 7.7 79 8.2 7.8 105 GRAVE SPRINGS 8550 3.4 -M * 4.1 5.7 72 HANSEN SAWMILL 8760 4.0 3.9 103 5.0 4.4 114 MIDDLE POWDER 7760 4.1 6.9 59 5.2 6.9 75 POWDER RIVER PASS 9480 5.3 6.1 87 6.1 6.7 91 SUCKER CREEK 8880 6.8 6.3 108 8.5 7.5 113 TIE CREEK 6870 4.6 -M * 8.0 6.1 131 ----- ----- Basin wide percent of average 89 103 BELLE FOURCHE BLIND PARK 6890 4.9 6.3 78 7.2 5.4 133 NORTH RAPID CREEK 6130 5.0 -M * 5.7 -M * WARREN PEAK 6520 5.1 6.3 81 5.7 4.5 127 ----- ----- Basin wide percent of average 79 130 UPPER N. PLATTE RIVER COLUMBINE 9400 10.0 13.0 77 11.4 13.5 84 DIVIDE PEAK 8800 7.4 11.5 64 10.2 13.9 73 ELK RIVER 8700 7.0 10.3 68 8.7 10.6 82 JOE WRIGHT 10120 10.8 12.2 89 13.1 14.0 94 NORTH FRENCH CREEK 10100 12.4 13.7 91 12.8 12.9 99 OLD BATTLE 10000 14.0 17.6 80 18.1 16.7 108 SOUTH BRUSH CREEK 8400 4.0 6.0 67 4.9 10.3 48 TOWER 10500 19.5 24.9 78 19.5 20.3 96 WEBBER SPRINGS 9200 10.2 14.9 68 13.5 14.8 91 WILLOW CREEK PASS 9540 3.7 6.5 57 4.1 6.9 59 ----- ----- Basin wide percent of average 76 87 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 8.1 14.1 57 9.8 10.3 95 CASPER MTN. 7900 7.5 8.3 90 7.6 7.8 97 DEADMAN HILL 10220 8.3 9.6 86 7.7 8.8 88 DEER PARK 9700 -M -M * 11.7 -M * LAPRELE CREEK 8320 4.6 5.7 81 5.8 6.3 92 RENO HILL 8400 7.4 7.4 100 6.6 10.5 63 ROACH 9700 7.2 9.4 77 9.3 12.1 77 SAND LAKE 10080 12.9 18.2 71 12.3 11.1 111 SOUTH PASS 9040 9.0 9.9 91 10.2 9.4 109 WINDY PEAK 7840 3.6 3.7 97 4.7 5.0 94 ----- ----- Basin wide percent of average 79 91 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.8 6.2 61 7.4 9.1 81 DIVIDE PEAK 8800 7.4 11.5 64 10.2 13.9 73 OLD BATTLE 10000 14.0 17.6 80 18.1 16.7 108 SANDSTONE RS 8150 6.4 7.8 82 9.6 11.1 86 WHISKEY PARK 8950 12.2 15.7 78 14.1 15.8 89 ----- ----- Basin wide percent of average 74 89 UPPER GREEN RIVER BIG SANDY OPENING 9100 5.7 7.9 72 5.2 10.0 52 BLIND BULL SUM 8650 14.2 16.0 89 11.3 13.8 82 EAST RIM DIVIDE 7930 5.7 7.5 76 6.1 9.3 66 ELKHART PARK G.S. 9400 6.1 7.5 81 6.6 9.8 67 GROS VENTRE SUMMIT 8775 6.2 8.8 70 7.4 9.7 76 KENDALL R.S. 7740 8.2 8.2 100 8.5 9.5 89 LOOMIS PARK 8240 7.8 9.4 83 8.4 11.6 72 NEW FORK LAKE 8340 5.1 6.3 81 5.2 8.9 58 SNIDER BASIN 8250 6.3 8.0 79 6.8 9.3 73 SPRING CREEK DIVIDE 9000 12.2 14.9 82 12.3 16.3 75 TRIPLE PEAK 8500 12.7 14.2 89 13.0 19.0 68 ----- ----- Basin wide percent of average 83 71 LOWER GREEN RIVER HAMS FORK 7840 6.2 6.4 97 5.4 8.2 66 HEWINTA 9500 6.6 5.2 127 8.9 7.4 120 HICKERSON PARK 9150 5.0 3.0 167 7.9 5.4 146 HOLE-IN-ROCK 9150 4.0 2.7 148 6.8 5.4 126 INDIAN CREEK 9425 12.6 15.0 84 10.0 15.4 65 KELLEY R.S. 8180 8.6 8.7 99 9.1 11.5 79 STEEL CREEK PARK 10100 7.9 8.6 92 10.4 7.7 135 ----- ----- Basin wide percent of average 103 96 UPPER BEAR RIVER BUG LAKE 7950 11.4 11.0 104 11.6 11.1 105 HAYDEN FORK 9400 7.0 8.8 80 11.2 10.3 109 KELLEY R.S. 8180 8.6 8.7 99 9.1 11.5 79 LILY LAKE 9050 7.3 7.3 100 9.4 8.3 113 MONTE CRISTO 8960 15.3 14.5 106 14.3 14.3 100 SALT RIVER SUMMIT 7600 8.5 7.1 120 10.3 10.3 100 TRIAL LAKE 9960 10.2 13.7 74 11.1 13.0 85 ----- ----- Basin wide percent of average 96 98 ----------------------------------------------------------------------------- -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.