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 WEDNESDAY: FEBRUARY 11 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.8 13.6 101 16.0 17.7 90 COTTONWOOD CREEK 7600 15.7 15.7 100 16.9 19.1 88 GRANITE CREEK 6770 13.3 13.4 99 15.3 18.6 82 GRASSY LAKE 7265 25.1 27.9 90 25.5 28.6 89 GROS VENTRE SUMMIT 8775 7.6 11.4 67 8.9 12.5 71 LEWIS LAKE DIVIDE 7860 21.9 25.4 86 23.7 29.1 81 PHILLIPS BENCH 8200 20.1 21.3 94 20.1 23.0 87 SALT RIVER SUMMIT 7600 11.2 10.1 111 13.2 13.3 99 SNAKE RIVER STATION 6920 13.2 13.9 95 16.1 20.1 80 SPRING CREEK DIVIDE 9000 16.2 20.0 81 16.4 21.1 78 THUMB DIVIDE 7980 11.5 12.5 92 12.7 16.6 77 TOGWOTEE PASS 9580 18.2 18.3 99 17.7 21.7 82 TWO OCEAN PLATEAU 9360 20.6 19.8 104 21.0 24.4 86 WILLOW CREEK 8450 19.6 23.0 85 23.1 24.9 93 ----- ----- Basin wide percent of average 93 85 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 15.5 17.4 89 13.4 13.2 102 BLACK BEAR 7950 28.1 27.2 103 25.9 29.1 89 CANYON 7940 9.9 9.2 108 11.1 10.7 104 FISHER CREEK 9100 23.5 26.4 89 20.8 26.8 78 MADISON PLATEAU 7750 14.6 17.8 82 16.0 18.9 85 NORTHEAST ENTRANCE 7350 5.8 7.0 83 9.8 9.0 109 PARKER PEAK 9400 14.1 15.7 90 12.3 11.4 108 SYLVAN LAKE 8420 12.3 16.3 75 15.0 14.3 105 THUMB DIVIDE 7980 11.5 12.5 92 12.7 16.6 77 TWO OCEAN PLATEAU 9360 20.6 19.8 104 21.0 24.4 86 WHISKEY CREEK 6800 10.0 12.3 81 12.6 15.7 80 WHITE MILL 8700 17.8 18.6 96 16.5 20.9 79 WOLVERINE 7650 8.0 8.8 91 8.4 9.6 88 ----- ----- Basin wide percent of average 92 89 WIND RIVER BURROUGHS CREEK 8750 11.6 11.5 101 12.8 12.3 104 COLD SPRINGS 9630 6.8 6.2 110 7.6 7.4 103 DEER PARK 9700 -M -M * 13.7 -M * HOBBS PARK 10100 9.6 10.7 90 8.4 9.9 85 LITTLE WARM 9620 7.5 7.9 95 9.3 9.6 97 SOUTH PASS 9040 9.8 12.3 80 11.1 11.9 93 ST. LAWRENCE ALT 8620 6.8 5.3 128 6.8 6.9 99 TOGWOTEE PASS 9580 18.2 18.3 99 17.7 21.7 82 TOWNSEND CREEK 8700 7.0 6.8 103 8.3 8.5 98 ----- ----- Basin wide percent of average 98 93 BIGHORN BASIN BALD MTN. 9375 14.3 15.0 95 12.7 12.6 101 BEAR TRAP MEADOW 7900 3.7 5.2 71 4.3 5.7 75 BLACKWATER 9780 15.8 15.4 103 14.0 13.3 105 BONE SPRINGS DIV 9350 10.9 11.6 94 11.2 10.2 110 EVENING STAR 9200 17.9 19.7 91 19.5 16.6 117 GRAVE SPRINGS 8550 5.2 -M * 5.5 6.8 81 KIRWIN 9550 9.4 7.1 132 10.7 7.4 145 MARQUETTE 8760 9.3 5.7 163 9.5 6.3 151 MIDDLE POWDER 7760 6.2 8.4 74 6.7 8.3 81 OWL CREEK 8975 4.7 3.1 152 4.4 4.2 105 POWDER RIVER PASS 9480 7.0 7.6 92 7.8 8.4 93 SHELL CREEK 9580 9.8 11.1 88 7.8 9.5 82 SYLVAN LAKE 8420 12.3 16.3 75 15.0 14.3 105 SYLVAN ROAD 8120 7.9 9.5 83 11.7 12.0 98 TIMBER CREEK 7950 6.1 4.1 149 7.4 4.5 164 YOUNTS PEAK 8350 11.7 13.1 89 11.7 12.2 96 ----- ----- Basin wide percent of average 96 105 SHOSHONE RIVER BLACKWATER 9780 15.8 15.4 103 14.0 13.3 105 EVENING STAR 9200 17.9 19.7 91 19.5 16.6 117 KIRWIN 9550 9.4 7.1 132 10.7 7.4 145 MARQUETTE 8760 9.3 5.7 163 9.5 6.3 151 SYLVAN LAKE 8420 12.3 16.3 75 15.0 14.3 105 SYLVAN ROAD 8120 7.9 9.5 83 11.7 12.0 98 YOUNTS PEAK 8350 11.7 13.1 89 11.7 12.2 96 ----- ----- Basin wide percent of average 97 112 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.7 5.2 71 4.3 5.7 75 BONE SPRINGS DIV 9350 10.9 11.6 94 11.2 10.2 110 BURGESS JUNCTION 7880 6.9 8.3 83 8.3 7.6 109 CLOUD PEAK RESERVOIR 9860 9.2 9.1 101 9.9 8.9 111 DOME LAKE 8880 7.7 9.8 79 9.9 9.3 106 GRAVE SPRINGS 8550 5.2 -M * 5.5 6.8 81 HANSEN SAWMILL 8760 5.3 5.0 106 6.1 5.4 113 MIDDLE POWDER 7760 6.2 8.4 74 6.7 8.3 81 POWDER RIVER PASS 9480 7.0 7.6 92 7.8 8.4 93 SUCKER CREEK 8880 8.4 8.4 100 9.8 9.3 105 TIE CREEK 6870 5.3 -M * 9.0 7.3 123 ----- ----- Basin wide percent of average 89 101 BELLE FOURCHE BLIND PARK 6890 5.4 7.9 68 7.8 6.6 118 NORTH RAPID CREEK 6130 5.5 -M * 6.3 -M * WARREN PEAK 6520 6.1 7.9 77 6.4 5.6 114 ----- ----- Basin wide percent of average 73 116 UPPER N. PLATTE RIVER COLUMBINE 9400 15.5 17.7 88 15.9 17.9 89 DIVIDE PEAK 8800 12.0 14.6 82 13.6 17.0 80 ELK RIVER 8700 11.1 14.1 79 12.1 13.6 89 JOE WRIGHT 10120 13.8 15.3 90 16.7 17.8 94 NORTH FRENCH CREEK 10100 18.2 17.6 103 18.0 16.5 109 OLD BATTLE 10000 19.8 22.6 88 23.8 21.2 112 SOUTH BRUSH CREEK 8400 6.0 7.9 76 6.8 11.5 59 TOWER 10500 31.3 32.7 96 24.7 26.2 94 WEBBER SPRINGS 9200 13.7 19.3 71 17.7 18.1 98 WILLOW CREEK PASS 9540 4.4 8.0 55 4.6 8.6 53 ----- ----- Basin wide percent of average 86 91 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.9 17.4 68 13.4 13.3 101 CASPER MTN. 7900 8.9 10.4 86 8.7 9.4 93 DEADMAN HILL 10220 9.9 12.0 83 9.6 11.3 85 DEER PARK 9700 -M -M * 13.7 -M * LAPRELE CREEK 8320 5.9 7.2 82 7.0 8.1 86 RENO HILL 8400 8.3 9.2 90 7.4 12.5 59 ROACH 9700 9.8 12.1 81 11.8 15.3 77 SAND LAKE 10080 16.9 23.3 73 15.4 14.2 108 SOUTH PASS 9040 9.8 12.3 80 11.1 11.9 93 WINDY PEAK 7840 4.5 5.1 88 5.7 6.3 90 ----- ----- Basin wide percent of average 79 88 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.8 8.2 83 10.5 11.5 91 DIVIDE PEAK 8800 12.0 14.6 82 13.6 17.0 80 OLD BATTLE 10000 19.8 22.6 88 23.8 21.2 112 SANDSTONE RS 8150 9.9 10.4 95 13.2 14.1 94 WHISKEY PARK 8950 19.5 20.3 96 19.6 20.9 94 ----- ----- Basin wide percent of average 89 95 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.5 10.4 72 6.7 12.8 52 BLIND BULL SUM 8650 18.1 21.0 86 14.0 18.3 77 EAST RIM DIVIDE 7930 7.7 10.2 75 8.0 12.0 67 ELKHART PARK G.S. 9400 8.3 10.0 83 8.9 12.6 71 GROS VENTRE SUMMIT 8775 7.6 11.4 67 8.9 12.5 71 KENDALL R.S. 7740 10.7 10.8 99 10.7 12.2 88 LOOMIS PARK 8240 10.0 12.9 78 11.2 14.9 75 NEW FORK LAKE 8340 7.2 8.6 84 7.5 11.4 66 SNIDER BASIN 8250 8.6 10.9 79 8.9 12.0 74 SPRING CREEK DIVIDE 9000 16.2 20.0 81 16.4 21.1 78 TRIPLE PEAK 8500 16.2 19.0 85 16.3 24.6 66 ----- ----- Basin wide percent of average 81 71 LOWER GREEN RIVER HAMS FORK 7840 8.6 9.0 96 7.6 10.6 72 HEWINTA 9500 7.8 7.0 111 10.7 9.0 119 HICKERSON PARK 9150 7.0 4.1 171 8.5 6.4 133 HOLE-IN-ROCK 9150 5.0 3.7 135 7.6 6.4 119 INDIAN CREEK 9425 17.5 19.8 88 13.7 19.8 69 KELLEY R.S. 8180 11.6 12.1 96 12.0 14.8 81 STEEL CREEK PARK 10100 10.1 10.6 95 12.9 9.2 140 ----- ----- Basin wide percent of average 102 96 UPPER BEAR RIVER BUG LAKE 7950 15.6 14.3 109 15.3 13.9 110 HAYDEN FORK 9400 9.4 11.5 82 14.2 13.1 108 KELLEY R.S. 8180 11.6 12.1 96 12.0 14.8 81 LILY LAKE 9050 9.3 9.1 102 11.5 10.3 112 MONTE CRISTO 8960 21.2 19.2 110 18.9 18.0 105 SALT RIVER SUMMIT 7600 11.2 10.1 111 13.2 13.3 99 TRIAL LAKE 9960 14.5 17.5 83 15.6 16.8 93 ----- ----- Basin wide percent of average 99 100 ----------------------------------------------------------------------------- -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.