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 SATURDAY: FEBRUARY 14 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.0 14.0 100 16.2 18.1 90 COTTONWOOD CREEK 7600 16.1 16.2 99 17.2 19.6 88 GRANITE CREEK 6770 13.4 13.8 97 15.4 19.0 81 GRASSY LAKE 7265 25.6 29.3 87 26.4 29.2 90 GROS VENTRE SUMMIT 8775 7.9 11.6 68 9.1 12.8 71 LEWIS LAKE DIVIDE 7860 22.6 26.1 87 24.2 29.7 81 PHILLIPS BENCH 8200 20.3 21.8 93 20.4 23.5 87 SALT RIVER SUMMIT 7600 11.4 10.5 109 13.5 13.6 99 SNAKE RIVER STATION 6920 13.5 14.4 94 16.5 20.6 80 SPRING CREEK DIVIDE 9000 16.4 20.5 80 16.6 21.6 77 THUMB DIVIDE 7980 11.9 12.8 93 13.2 16.9 78 TOGWOTEE PASS 9580 18.8 18.8 100 18.0 22.2 81 TWO OCEAN PLATEAU 9360 21.2 20.2 105 21.2 24.9 85 WILLOW CREEK 8450 20.2 23.6 86 23.4 25.5 92 ----- ----- Basin wide percent of average 92 85 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 15.8 17.9 88 13.7 13.5 101 BLACK BEAR 7950 28.9 28.0 103 26.2 29.8 88 CANYON 7940 10.3 9.4 110 11.5 10.9 106 FISHER CREEK 9100 24.1 27.1 89 21.2 27.4 77 MADISON PLATEAU 7750 15.2 18.3 83 16.6 19.4 86 NORTHEAST ENTRANCE 7350 6.0 7.2 83 10.1 9.2 110 PARKER PEAK 9400 14.4 16.1 89 12.5 11.7 107 SYLVAN LAKE 8420 12.8 16.7 77 15.5 14.6 106 THUMB DIVIDE 7980 11.9 12.8 93 13.2 16.9 78 TWO OCEAN PLATEAU 9360 21.2 20.2 105 21.2 24.9 85 WHISKEY CREEK 6800 10.4 12.7 82 13.0 16.1 81 WHITE MILL 8700 18.3 19.1 96 16.6 21.4 78 WOLVERINE 7650 8.2 9.0 91 8.5 9.8 87 ----- ----- Basin wide percent of average 92 89 WIND RIVER BURROUGHS CREEK 8750 11.7 11.8 99 12.8 12.6 102 COLD SPRINGS 9630 6.8 6.4 106 7.6 7.6 100 DEER PARK 9700 -M -M * 13.7 -M * HOBBS PARK 10100 9.7 10.9 89 8.5 10.1 84 LITTLE WARM 9620 7.7 8.1 95 9.5 9.8 97 SOUTH PASS 9040 9.9 12.6 79 11.1 12.2 91 ST. LAWRENCE ALT 8620 6.8 5.5 124 6.8 7.1 96 TOGWOTEE PASS 9580 18.8 18.8 100 18.0 22.2 81 TOWNSEND CREEK 8700 7.2 7.0 103 8.7 8.7 100 ----- ----- Basin wide percent of average 97 92 BIGHORN BASIN BALD MTN. 9375 14.4 15.4 94 12.8 12.8 100 BEAR TRAP MEADOW 7900 3.9 5.4 72 -M 5.8 * BLACKWATER 9780 16.2 15.9 102 14.3 13.6 105 BONE SPRINGS DIV 9350 11.1 11.9 93 11.3 10.5 108 EVENING STAR 9200 18.2 20.2 90 19.6 17.0 115 GRAVE SPRINGS 8550 5.2 -M * 5.6 6.9 81 KIRWIN 9550 9.7 7.2 135 10.9 7.6 143 MARQUETTE 8760 9.5 5.8 164 9.7 6.4 152 MIDDLE POWDER 7760 6.2 8.6 72 6.7 8.5 79 OWL CREEK 8975 4.8 3.2 150 4.7 4.3 109 POWDER RIVER PASS 9480 7.0 7.8 90 8.0 8.5 94 SHELL CREEK 9580 9.9 11.4 87 7.8 9.7 80 SYLVAN LAKE 8420 12.8 16.7 77 15.5 14.6 106 SYLVAN ROAD 8120 8.1 9.8 83 11.8 12.3 96 TIMBER CREEK 7950 6.0 4.2 143 7.4 4.6 161 YOUNTS PEAK 8350 11.9 13.4 89 11.8 12.5 94 ----- ----- Basin wide percent of average 95 105 SHOSHONE RIVER BLACKWATER 9780 16.2 15.9 102 14.3 13.6 105 EVENING STAR 9200 18.2 20.2 90 19.6 17.0 115 KIRWIN 9550 9.7 7.2 135 10.9 7.6 143 MARQUETTE 8760 9.5 5.8 164 9.7 6.4 152 SYLVAN LAKE 8420 12.8 16.7 77 15.5 14.6 106 SYLVAN ROAD 8120 8.1 9.8 83 11.8 12.3 96 YOUNTS PEAK 8350 11.9 13.4 89 11.8 12.5 94 ----- ----- Basin wide percent of average 97 111 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.9 5.4 72 -M 5.8 * BONE SPRINGS DIV 9350 11.1 11.9 93 11.3 10.5 108 BURGESS JUNCTION 7880 7.1 8.5 84 8.4 7.8 108 CLOUD PEAK RESERVOIR 9860 9.4 9.5 99 10.2 9.1 112 DOME LAKE 8880 -M 10.0 * -M 9.5 * GRAVE SPRINGS 8550 5.2 -M * 5.6 6.9 81 HANSEN SAWMILL 8760 5.5 5.2 106 6.1 5.5 111 MIDDLE POWDER 7760 6.2 8.6 72 6.7 8.5 79 POWDER RIVER PASS 9480 7.0 7.8 90 8.0 8.5 94 SUCKER CREEK 8880 8.4 8.6 98 10.0 9.5 105 TIE CREEK 6870 5.4 -M * 8.9 7.5 119 ----- ----- Basin wide percent of average 89 102 BELLE FOURCHE BLIND PARK 6890 5.5 8.1 68 8.0 6.8 118 NORTH RAPID CREEK 6130 5.5 -M * 6.4 -M * WARREN PEAK 6520 6.4 8.1 79 6.7 5.7 118 ----- ----- Basin wide percent of average 73 118 UPPER N. PLATTE RIVER COLUMBINE 9400 15.6 18.2 86 16.5 18.3 90 DIVIDE PEAK 8800 12.2 15.0 81 13.9 17.3 80 ELK RIVER 8700 11.3 14.6 77 12.2 13.9 88 JOE WRIGHT 10120 14.0 15.7 89 16.6 18.2 91 NORTH FRENCH CREEK 10100 19.0 18.0 106 18.4 16.9 109 OLD BATTLE 10000 20.1 23.2 87 24.0 21.8 110 SOUTH BRUSH CREEK 8400 6.4 8.1 79 7.0 11.7 60 TOWER 10500 31.8 33.5 95 24.7 26.8 92 WEBBER SPRINGS 9200 13.7 19.8 69 17.8 18.5 96 WILLOW CREEK PASS 9540 4.6 8.2 56 5.4 8.8 61 ----- ----- Basin wide percent of average 85 91 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 12.3 17.8 69 13.6 13.7 99 CASPER MTN. 7900 8.8 10.7 82 8.8 9.6 92 DEADMAN HILL 10220 10.3 12.3 84 9.8 11.6 84 DEER PARK 9700 -M -M * 13.7 -M * LAPRELE CREEK 8320 6.2 7.4 84 7.3 8.3 88 RENO HILL 8400 8.4 9.4 89 7.6 12.9 59 ROACH 9700 10.1 12.4 81 11.9 15.6 76 SAND LAKE 10080 17.2 23.9 72 15.5 14.6 106 SOUTH PASS 9040 9.9 12.6 79 11.1 12.2 91 WINDY PEAK 7840 4.7 5.2 90 5.9 6.5 91 ----- ----- Basin wide percent of average 79 87 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.4 8.4 88 10.8 11.7 92 DIVIDE PEAK 8800 12.2 15.0 81 13.9 17.3 80 OLD BATTLE 10000 20.1 23.2 87 24.0 21.8 110 SANDSTONE RS 8150 10.2 10.7 95 13.5 14.3 94 WHISKEY PARK 8950 19.1 20.8 92 17.3 21.2 82 ----- ----- Basin wide percent of average 88 92 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.7 10.6 73 7.0 13.1 53 BLIND BULL SUM 8650 18.3 21.6 85 14.1 18.8 75 EAST RIM DIVIDE 7930 7.9 10.5 75 8.1 12.3 66 ELKHART PARK G.S. 9400 8.6 10.3 83 9.1 12.9 71 GROS VENTRE SUMMIT 8775 7.9 11.6 68 9.1 12.8 71 KENDALL R.S. 7740 10.9 11.1 98 11.0 12.5 88 LOOMIS PARK 8240 10.0 13.3 75 11.4 15.2 75 NEW FORK LAKE 8340 7.4 8.8 84 7.9 11.7 68 SNIDER BASIN 8250 8.7 11.2 78 9.1 12.3 74 SPRING CREEK DIVIDE 9000 16.4 20.5 80 16.6 21.6 77 TRIPLE PEAK 8500 16.4 19.5 84 16.7 25.1 67 ----- ----- Basin wide percent of average 81 71 LOWER GREEN RIVER HAMS FORK 7840 8.7 9.3 94 7.7 10.8 71 HEWINTA 9500 8.0 7.2 111 11.0 9.2 120 HICKERSON PARK 9150 7.0 4.2 167 8.7 6.6 132 HOLE-IN-ROCK 9150 5.1 3.9 131 7.8 6.6 118 INDIAN CREEK 9425 17.9 20.4 88 14.1 20.3 69 KELLEY R.S. 8180 11.9 12.5 95 12.3 15.1 81 STEEL CREEK PARK 10100 10.3 10.8 95 13.2 9.4 140 ----- ----- Basin wide percent of average 101 96 UPPER BEAR RIVER BUG LAKE 7950 15.9 14.7 108 15.6 14.2 110 HAYDEN FORK 9400 9.6 11.9 81 14.5 13.4 108 KELLEY R.S. 8180 11.9 12.5 95 12.3 15.1 81 LILY LAKE 9050 9.6 9.4 102 11.7 10.5 111 MONTE CRISTO 8960 21.7 19.7 110 19.3 18.5 104 SALT RIVER SUMMIT 7600 11.4 10.5 109 13.5 13.6 99 TRIAL LAKE 9960 14.9 18.0 83 15.8 17.3 91 ----- ----- Basin wide percent of average 98 100 ----------------------------------------------------------------------------- -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.