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 7 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.5 13.2 102 15.8 17.1 92 COTTONWOOD CREEK 7600 14.9 15.0 99 16.2 18.4 88 GRANITE CREEK 6770 13.0 13.0 100 15.0 18.0 83 GRASSY LAKE 7265 24.2 25.9 93 24.9 27.7 90 GROS VENTRE SUMMIT 8775 7.5 11.1 68 8.7 12.2 71 LEWIS LAKE DIVIDE 7860 21.4 24.3 88 23.4 28.2 83 PHILLIPS BENCH 8200 19.5 20.5 95 19.6 22.3 88 SALT RIVER SUMMIT 7600 10.7 9.7 110 12.6 12.9 98 SNAKE RIVER STATION 6920 12.9 13.3 97 15.8 19.5 81 SPRING CREEK DIVIDE 9000 15.9 19.3 82 16.0 20.4 78 THUMB DIVIDE 7980 11.3 12.0 94 12.6 16.1 78 TOGWOTEE PASS 9580 17.6 17.8 99 17.4 21.1 82 TWO OCEAN PLATEAU 9360 20.4 19.2 106 20.6 23.6 87 WILLOW CREEK 8450 18.4 22.2 83 22.0 24.0 92 ----- ----- Basin wide percent of average 94 85 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 15.5 16.9 92 13.5 12.7 106 BLACK BEAR 7950 26.7 26.1 102 25.2 28.0 90 CANYON 7940 9.7 8.8 110 11.1 10.4 107 FISHER CREEK 9100 23.1 25.5 91 20.7 25.9 80 MADISON PLATEAU 7750 14.2 17.1 83 15.6 18.3 85 NORTHEAST ENTRANCE 7350 5.6 6.8 82 9.6 8.7 110 PARKER PEAK 9400 13.7 15.1 91 12.0 11.1 108 SYLVAN LAKE 8420 12.0 15.7 76 14.6 13.9 105 THUMB DIVIDE 7980 11.3 12.0 94 12.6 16.1 78 TWO OCEAN PLATEAU 9360 20.4 19.2 106 20.6 23.6 87 WHISKEY CREEK 6800 9.7 11.9 82 12.3 15.2 81 WHITE MILL 8700 17.6 17.9 98 16.3 20.3 80 WOLVERINE 7650 8.1 8.4 96 8.4 9.3 90 ----- ----- Basin wide percent of average 93 90 WIND RIVER BURROUGHS CREEK 8750 11.6 11.0 105 12.7 11.9 107 COLD SPRINGS 9630 6.8 6.1 111 7.6 7.2 106 DEER PARK 9700 -M -M * 12.8 -M * HOBBS PARK 10100 9.6 10.4 92 8.3 9.6 86 LITTLE WARM 9620 7.5 7.6 99 9.3 9.3 100 SOUTH PASS 9040 9.7 11.9 82 10.8 11.4 95 ST. LAWRENCE ALT 8620 6.6 5.1 129 6.6 6.7 99 TOGWOTEE PASS 9580 17.6 17.8 99 17.4 21.1 82 TOWNSEND CREEK 8700 7.0 6.6 106 8.5 8.2 104 ----- ----- Basin wide percent of average 100 95 BIGHORN BASIN BALD MTN. 9375 13.5 14.5 93 12.0 12.2 98 BEAR TRAP MEADOW 7900 3.6 5.1 71 4.4 5.6 79 BLACKWATER 9780 16.1 14.9 108 14.1 12.8 110 BONE SPRINGS DIV 9350 10.6 11.2 95 11.0 9.9 111 EVENING STAR 9200 17.8 18.9 94 19.2 16.1 119 GRAVE SPRINGS 8550 4.9 -M * 5.3 6.6 80 KIRWIN 9550 9.3 6.9 135 10.3 7.2 143 MARQUETTE 8760 8.9 5.4 165 9.3 6.1 152 MIDDLE POWDER 7760 5.9 8.2 72 6.4 8.1 79 OWL CREEK 8975 4.2 3.0 140 4.3 4.0 108 POWDER RIVER PASS 9480 6.7 7.4 91 7.6 8.1 94 SHELL CREEK 9580 9.4 10.8 87 7.5 9.3 81 SYLVAN LAKE 8420 12.0 15.7 76 14.6 13.9 105 SYLVAN ROAD 8120 7.9 9.1 87 11.6 11.6 100 TIMBER CREEK 7950 5.6 3.9 144 6.9 4.4 157 YOUNTS PEAK 8350 11.9 12.8 93 11.8 11.9 99 ----- ----- Basin wide percent of average 97 106 SHOSHONE RIVER BLACKWATER 9780 16.1 14.9 108 14.1 12.8 110 EVENING STAR 9200 17.8 18.9 94 19.2 16.1 119 KIRWIN 9550 9.3 6.9 135 10.3 7.2 143 MARQUETTE 8760 8.9 5.4 165 9.3 6.1 152 SYLVAN LAKE 8420 12.0 15.7 76 14.6 13.9 105 SYLVAN ROAD 8120 7.9 9.1 87 11.6 11.6 100 YOUNTS PEAK 8350 11.9 12.8 93 11.8 11.9 99 ----- ----- Basin wide percent of average 100 114 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.6 5.1 71 4.4 5.6 79 BONE SPRINGS DIV 9350 10.6 11.2 95 11.0 9.9 111 BURGESS JUNCTION 7880 6.7 8.0 84 7.9 7.4 107 CLOUD PEAK RESERVOIR 9860 8.2 8.7 94 8.9 8.6 103 DOME LAKE 8880 6.9 9.5 73 9.0 9.1 99 GRAVE SPRINGS 8550 4.9 -M * 5.3 6.6 80 HANSEN SAWMILL 8760 4.7 4.9 96 5.5 5.2 106 MIDDLE POWDER 7760 5.9 8.2 72 6.4 8.1 79 POWDER RIVER PASS 9480 6.7 7.4 91 7.6 8.1 94 SUCKER CREEK 8880 7.9 8.0 99 9.6 9.0 107 TIE CREEK 6870 5.1 -M * 8.6 7.1 121 ----- ----- Basin wide percent of average 86 99 BELLE FOURCHE BLIND PARK 6890 5.5 7.6 72 7.8 6.4 122 NORTH RAPID CREEK 6130 5.4 -M * 6.3 -M * WARREN PEAK 6520 6.1 7.6 80 6.5 5.4 120 ----- ----- Basin wide percent of average 76 121 UPPER N. PLATTE RIVER COLUMBINE 9400 14.8 16.9 88 15.6 17.3 90 DIVIDE PEAK 8800 11.5 14.1 82 13.3 16.7 80 ELK RIVER 8700 10.5 13.5 78 11.5 13.1 88 JOE WRIGHT 10120 13.0 14.8 88 15.8 17.3 91 NORTH FRENCH CREEK 10100 -M 16.9 * 17.5 15.9 110 OLD BATTLE 10000 19.1 21.7 88 23.5 20.5 115 SOUTH BRUSH CREEK 8400 5.4 7.6 71 6.3 11.2 56 TOWER 10500 29.2 31.6 92 24.6 25.4 97 WEBBER SPRINGS 9200 13.5 18.5 73 17.4 17.5 99 WILLOW CREEK PASS 9540 4.2 7.7 55 4.7 8.2 57 ----- ----- Basin wide percent of average 83 92 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 12.0 16.8 71 13.5 12.8 105 CASPER MTN. 7900 8.9 10.0 89 8.8 9.1 97 DEADMAN HILL 10220 9.9 11.7 85 9.5 10.9 87 DEER PARK 9700 -M -M * 12.8 -M * LAPRELE CREEK 8320 5.7 7.0 81 6.8 7.9 86 RENO HILL 8400 8.3 8.8 94 7.5 12.1 62 ROACH 9700 9.7 11.6 84 11.6 14.9 78 SAND LAKE 10080 16.8 22.4 75 15.2 13.8 110 SOUTH PASS 9040 9.7 11.9 82 10.8 11.4 95 WINDY PEAK 7840 4.2 4.8 88 5.3 6.2 85 ----- ----- Basin wide percent of average 81 90 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.2 7.8 79 9.9 11.3 88 DIVIDE PEAK 8800 11.5 14.1 82 13.3 16.7 80 OLD BATTLE 10000 19.1 21.7 88 23.5 20.5 115 SANDSTONE RS 8150 9.0 9.9 91 12.3 13.8 89 WHISKEY PARK 8950 18.5 19.5 95 18.9 20.5 92 ----- ----- Basin wide percent of average 88 94 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.4 10.1 73 6.8 12.5 54 BLIND BULL SUM 8650 17.9 20.2 89 13.8 17.7 78 EAST RIM DIVIDE 7930 7.6 9.9 77 7.8 11.6 67 ELKHART PARK G.S. 9400 8.4 9.5 88 8.7 12.3 71 GROS VENTRE SUMMIT 8775 7.5 11.1 68 8.7 12.2 71 KENDALL R.S. 7740 10.5 10.5 100 10.7 11.9 90 LOOMIS PARK 8240 9.8 12.4 79 11.1 14.4 77 NEW FORK LAKE 8340 7.1 8.3 86 7.7 11.1 69 SNIDER BASIN 8250 8.6 10.5 82 9.0 11.6 78 SPRING CREEK DIVIDE 9000 15.9 19.3 82 16.0 20.4 78 TRIPLE PEAK 8500 16.1 18.4 88 16.4 23.8 69 ----- ----- Basin wide percent of average 83 73 LOWER GREEN RIVER HAMS FORK 7840 8.2 8.7 94 7.2 10.3 70 HEWINTA 9500 7.6 6.7 113 10.6 8.8 120 HICKERSON PARK 9150 6.8 3.8 179 8.5 6.3 135 HOLE-IN-ROCK 9150 4.8 3.5 137 7.4 6.3 117 INDIAN CREEK 9425 16.7 19.1 87 13.2 19.2 69 KELLEY R.S. 8180 11.1 11.5 97 11.6 14.4 81 STEEL CREEK PARK 10100 9.8 10.3 95 12.8 9.0 142 ----- ----- Basin wide percent of average 102 96 UPPER BEAR RIVER BUG LAKE 7950 15.1 13.7 110 14.9 13.5 110 HAYDEN FORK 9400 9.0 11.0 82 13.6 12.6 108 KELLEY R.S. 8180 11.1 11.5 97 11.6 14.4 81 LILY LAKE 9050 8.9 8.7 102 11.0 10.0 110 MONTE CRISTO 8960 20.3 18.4 110 18.2 17.4 105 SALT RIVER SUMMIT 7600 10.7 9.7 110 12.6 12.9 98 TRIAL LAKE 9960 13.5 16.8 80 14.4 16.2 89 ----- ----- Basin wide percent of average 99 99 ----------------------------------------------------------------------------- -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.