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: MARCH 3 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.7 15.8 93 16.8 20.3 83 COTTONWOOD CREEK 7600 17.9 18.9 95 19.1 22.5 85 GRANITE CREEK 6770 15.0 15.6 96 17.0 21.3 80 GRASSY LAKE 7265 26.9 30.1 89 27.7 32.9 84 GROS VENTRE SUMMIT 8775 9.2 13.1 70 10.2 14.3 71 LEWIS LAKE DIVIDE 7860 24.1 30.0 80 25.8 33.4 77 PHILLIPS BENCH 8200 22.6 24.6 92 22.8 26.4 86 SALT RIVER SUMMIT 7600 13.0 12.3 106 14.9 15.2 98 SNAKE RIVER STATION 6920 14.2 16.4 87 17.1 23.1 74 SPRING CREEK DIVIDE 9000 18.4 23.7 78 17.8 24.4 73 THUMB DIVIDE 7980 13.2 14.5 91 14.4 19.0 76 TOGWOTEE PASS 9580 21.3 21.1 101 19.7 25.0 79 TWO OCEAN PLATEAU 9360 22.6 22.6 100 22.4 27.9 80 WILLOW CREEK 8450 22.9 26.2 87 25.8 28.9 89 ----- ----- Basin wide percent of average 90 81 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 16.2 20.2 80 14.1 15.3 92 BLACK BEAR 7950 31.6 32.2 98 -M 34.2 * CANYON 7940 10.9 10.9 100 12.3 12.2 101 FISHER CREEK 9100 25.5 30.7 83 23.2 31.1 75 MADISON PLATEAU 7750 17.1 20.9 82 18.4 22.1 83 NORTHEAST ENTRANCE 7350 6.3 8.2 77 10.4 10.3 101 PARKER PEAK 9400 15.1 18.3 83 13.2 13.3 99 SYLVAN LAKE 8420 13.8 18.8 73 16.6 16.5 101 THUMB DIVIDE 7980 13.2 14.5 91 14.4 19.0 76 TWO OCEAN PLATEAU 9360 22.6 22.6 100 22.4 27.9 80 WHISKEY CREEK 6800 11.8 14.7 80 14.6 18.3 80 WHITE MILL 8700 19.1 21.5 89 17.6 24.1 73 WOLVERINE 7650 8.3 10.2 81 8.8 11.1 79 ----- ----- Basin wide percent of average 87 84 WIND RIVER BURROUGHS CREEK 8750 12.3 13.3 92 13.4 14.2 94 COLD SPRINGS 9630 8.0 7.1 113 8.8 8.5 104 DEER PARK 9700 -M -M * 15.8 -M * HOBBS PARK 10100 11.0 12.3 89 9.9 11.4 87 LITTLE WARM 9620 8.6 9.4 91 10.4 11.0 95 SOUTH PASS 9040 11.4 14.2 80 12.6 14.0 90 ST. LAWRENCE ALT 8620 7.6 6.3 121 7.5 8.1 93 TOGWOTEE PASS 9580 21.3 21.1 101 19.7 25.0 79 TOWNSEND CREEK 8700 8.5 8.1 105 9.9 10.0 99 ----- ----- Basin wide percent of average 97 90 BIGHORN BASIN BALD MTN. 9375 16.4 17.3 95 14.6 14.3 102 BEAR TRAP MEADOW 7900 5.0 6.0 83 5.0 6.4 78 BLACKWATER 9780 17.2 18.3 94 15.4 15.4 100 BONE SPRINGS DIV 9350 13.6 13.6 100 13.6 11.9 114 EVENING STAR 9200 19.0 22.8 83 20.5 19.2 107 GRAVE SPRINGS 8550 7.1 -M * 7.5 7.5 100 KIRWIN 9550 10.2 8.2 124 11.5 8.7 132 MARQUETTE 8760 10.3 6.6 156 10.6 7.3 145 MIDDLE POWDER 7760 8.0 9.9 81 7.9 9.4 84 OWL CREEK 8975 5.2 3.8 137 5.1 5.0 102 POWDER RIVER PASS 9480 8.7 9.0 97 9.7 9.5 102 SHELL CREEK 9580 11.9 12.8 93 9.2 10.8 85 SYLVAN LAKE 8420 13.8 18.8 73 16.6 16.5 101 SYLVAN ROAD 8120 8.5 11.4 75 12.2 13.8 88 TIMBER CREEK 7950 6.7 5.0 134 8.1 5.2 156 YOUNTS PEAK 8350 12.6 15.0 84 12.5 14.1 89 ----- ----- Basin wide percent of average 94 103 SHOSHONE RIVER BLACKWATER 9780 17.2 18.3 94 15.4 15.4 100 EVENING STAR 9200 19.0 22.8 83 20.5 19.2 107 KIRWIN 9550 10.2 8.2 124 11.5 8.7 132 MARQUETTE 8760 10.3 6.6 156 10.6 7.3 145 SYLVAN LAKE 8420 13.8 18.8 73 16.6 16.5 101 SYLVAN ROAD 8120 8.5 11.4 75 12.2 13.8 88 YOUNTS PEAK 8350 12.6 15.0 84 12.5 14.1 89 ----- ----- Basin wide percent of average 91 105 POWDER-TONGUE BEAR TRAP MEADOW 7900 5.0 6.0 83 5.0 6.4 78 BONE SPRINGS DIV 9350 13.6 13.6 100 13.6 11.9 114 BURGESS JUNCTION 7880 8.9 9.8 91 10.1 8.8 115 CLOUD PEAK RESERVOIR 9860 11.7 11.4 103 11.7 10.5 111 DOME LAKE 8880 8.9 11.5 77 11.2 10.6 106 GRAVE SPRINGS 8550 7.1 -M * 7.5 7.5 100 HANSEN SAWMILL 8760 6.4 5.8 110 7.4 6.1 121 MIDDLE POWDER 7760 8.0 9.9 81 7.9 9.4 84 POWDER RIVER PASS 9480 8.7 9.0 97 9.7 9.5 102 SUCKER CREEK 8880 10.4 9.9 105 11.8 10.7 110 TIE CREEK 6870 6.5 -M * 10.2 8.4 121 ----- ----- Basin wide percent of average 94 106 BELLE FOURCHE BLIND PARK 6890 8.9 9.2 97 11.5 7.8 147 NORTH RAPID CREEK 6130 9.4 -M * 9.2 -M * WARREN PEAK 6520 11.5 9.2 125 8.9 6.3 141 ----- ----- Basin wide percent of average 111 145 UPPER N. PLATTE RIVER COLUMBINE 9400 19.3 21.3 91 19.5 20.8 94 DIVIDE PEAK 8800 14.7 17.1 86 16.0 19.0 84 ELK RIVER 8700 13.9 16.9 82 14.7 15.7 94 JOE WRIGHT 10120 16.9 17.7 95 19.9 20.5 97 NORTH FRENCH CREEK 10100 23.9 20.8 115 22.3 19.2 116 OLD BATTLE 10000 24.6 26.6 92 28.1 24.9 113 SOUTH BRUSH CREEK 8400 9.3 9.7 96 10.1 13.1 77 TOWER 10500 38.8 37.9 102 32.1 30.4 106 WEBBER SPRINGS 9200 16.4 22.7 72 20.6 21.0 98 WILLOW CREEK PASS 9540 5.7 9.4 61 6.2 10.1 61 ----- ----- Basin wide percent of average 92 97 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.2 20.3 75 15.8 15.8 100 CASPER MTN. 7900 11.0 12.5 88 10.5 11.0 95 DEADMAN HILL 10220 11.3 13.7 82 10.7 13.2 81 DEER PARK 9700 -M -M * 15.8 -M * LAPRELE CREEK 8320 8.0 8.5 94 9.1 9.3 98 RENO HILL 8400 10.5 11.0 95 9.6 14.9 64 ROACH 9700 11.8 14.2 83 13.4 17.5 77 SAND LAKE 10080 20.0 27.2 74 18.2 16.7 109 SOUTH PASS 9040 11.4 14.2 80 12.6 14.0 90 WINDY PEAK 7840 6.0 6.4 94 7.1 7.3 97 ----- ----- Basin wide percent of average 82 89 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.9 10.0 109 13.1 12.8 102 DIVIDE PEAK 8800 14.7 17.1 86 16.0 19.0 84 OLD BATTLE 10000 24.6 26.6 92 28.1 24.9 113 SANDSTONE RS 8150 12.7 12.4 102 15.8 15.6 101 WHISKEY PARK 8950 -M 24.0 * -M 22.9 * ----- ----- Basin wide percent of average 95 101 UPPER GREEN RIVER BIG SANDY OPENING 9100 9.3 12.3 76 8.5 14.6 58 BLIND BULL SUM 8650 19.5 24.7 79 15.1 21.2 71 EAST RIM DIVIDE 7930 8.7 12.2 71 8.7 13.7 64 ELKHART PARK G.S. 9400 9.7 11.6 84 10.1 14.4 70 GROS VENTRE SUMMIT 8775 9.2 13.1 70 10.2 14.3 71 KENDALL R.S. 7740 11.5 12.8 90 11.5 14.0 82 LOOMIS PARK 8240 11.0 15.1 73 12.4 17.0 73 NEW FORK LAKE 8340 8.2 10.0 82 8.5 13.0 65 SNIDER BASIN 8250 9.5 13.0 73 9.9 13.7 72 SPRING CREEK DIVIDE 9000 18.4 23.7 78 17.8 24.4 73 TRIPLE PEAK 8500 17.8 22.0 81 18.0 28.1 64 ----- ----- Basin wide percent of average 78 69 LOWER GREEN RIVER HAMS FORK 7840 9.5 10.7 89 8.5 12.0 71 HEWINTA 9500 9.5 8.7 109 12.4 10.4 119 HICKERSON PARK 9150 9.0 5.1 176 10.1 7.3 138 HOLE-IN-ROCK 9150 6.8 4.6 148 9.1 7.3 125 INDIAN CREEK 9425 20.2 23.4 86 15.8 22.8 69 KELLEY R.S. 8180 13.0 14.4 90 13.4 17.0 79 STEEL CREEK PARK 10100 12.4 12.8 97 14.8 10.5 141 ----- ----- Basin wide percent of average 101 96 UPPER BEAR RIVER BUG LAKE 7950 18.4 17.3 106 17.7 16.1 110 HAYDEN FORK 9400 11.5 13.9 83 16.7 15.5 108 KELLEY R.S. 8180 13.0 14.4 90 13.4 17.0 79 LILY LAKE 9050 11.7 10.8 108 13.9 11.9 117 MONTE CRISTO 8960 26.1 23.9 109 22.6 21.1 107 SALT RIVER SUMMIT 7600 13.0 12.3 106 14.9 15.2 98 TRIAL LAKE 9960 18.1 21.6 84 18.9 20.0 94 ----- ----- Basin wide percent of average 98 101 ----------------------------------------------------------------------------- -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.