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 SUNDAY: MARCH 29 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 16.4 17.6 93 20.1 22.5 89 COTTONWOOD CREEK 7600 20.0 24.0 83 23.0 25.4 91 GRANITE CREEK 6770 16.9 18.5 91 20.7 23.7 87 GRASSY LAKE 7265 30.8 35.7 86 33.2 37.6 88 GROS VENTRE SUMMIT 8775 11.3 15.6 72 12.4 16.1 77 LEWIS LAKE DIVIDE 7860 30.1 35.2 86 31.7 38.1 83 PHILLIPS BENCH 8200 26.5 29.0 91 26.1 30.2 86 SALT RIVER SUMMIT 7600 14.3 14.3 100 17.3 17.1 101 SNAKE RIVER STATION 6920 16.8 18.6 90 21.1 26.3 80 SPRING CREEK DIVIDE 9000 22.6 27.9 81 21.5 27.7 78 THUMB DIVIDE 7980 15.9 17.0 94 17.2 21.1 82 TOGWOTEE PASS 9580 25.1 24.8 101 23.7 28.6 83 TWO OCEAN PLATEAU 9360 27.4 26.4 104 26.6 31.0 86 WILLOW CREEK 8450 26.8 30.1 89 30.8 32.5 95 ----- ----- Basin wide percent of average 90 86 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.2 23.4 82 16.7 17.9 93 BLACK BEAR 7950 38.7 37.9 102 34.0 40.6 84 CANYON 7940 12.9 12.9 100 14.7 14.2 104 FISHER CREEK 9100 31.1 35.6 87 26.2 36.5 72 MADISON PLATEAU 7750 20.9 24.4 86 22.5 26.2 86 NORTHEAST ENTRANCE 7350 6.9 9.1 76 12.0 11.7 103 PARKER PEAK 9400 18.8 21.5 87 16.4 15.4 106 SYLVAN LAKE 8420 17.9 22.0 81 20.5 19.0 108 THUMB DIVIDE 7980 15.9 17.0 94 17.2 21.1 82 TWO OCEAN PLATEAU 9360 27.4 26.4 104 26.6 31.0 86 WHISKEY CREEK 6800 14.3 17.2 83 18.6 21.8 85 WHITE MILL 8700 23.4 24.8 94 21.4 28.2 76 WOLVERINE 7650 9.2 11.6 79 10.1 12.6 80 ----- ----- Basin wide percent of average 90 87 WIND RIVER BURROUGHS CREEK 8750 14.7 14.9 99 16.2 16.4 99 COLD SPRINGS 9630 10.5 8.3 127 11.2 10.4 108 DEER PARK 9700 -M -M * 20.0 -M * HOBBS PARK 10100 14.3 14.8 97 12.7 13.9 91 LITTLE WARM 9620 10.9 11.4 96 13.0 13.1 99 SOUTH PASS 9040 15.0 16.2 93 16.7 16.8 99 ST. LAWRENCE ALT 8620 9.5 7.5 127 9.2 10.0 92 TOGWOTEE PASS 9580 25.1 24.8 101 23.7 28.6 83 TOWNSEND CREEK 8700 11.1 9.7 114 12.9 12.2 106 ----- ----- Basin wide percent of average 103 95 BIGHORN BASIN BALD MTN. 9375 18.7 20.2 93 16.3 17.1 95 BEAR TRAP MEADOW 7900 5.8 7.1 82 6.8 8.0 85 BLACKWATER 9780 20.4 22.0 93 18.1 17.8 102 BONE SPRINGS DIV 9350 16.1 16.2 99 15.5 14.8 105 EVENING STAR 9200 22.9 26.8 85 24.7 22.3 111 GRAVE SPRINGS 8550 8.7 -M * 9.3 9.4 99 KIRWIN 9550 12.2 9.8 124 13.2 10.6 125 MARQUETTE 8760 12.3 8.0 154 12.5 9.3 134 MIDDLE POWDER 7760 9.9 12.0 83 9.5 11.5 83 OWL CREEK 8975 7.0 4.5 156 6.5 6.1 107 POWDER RIVER PASS 9480 10.6 10.7 99 11.4 11.3 101 SHELL CREEK 9580 13.7 14.8 93 10.4 12.9 81 SYLVAN LAKE 8420 17.9 22.0 81 20.5 19.0 108 SYLVAN ROAD 8120 10.6 12.5 85 14.6 15.9 92 TIMBER CREEK 7950 7.9 6.2 127 9.7 6.8 143 YOUNTS PEAK 8350 14.6 17.1 85 14.7 16.4 90 ----- ----- Basin wide percent of average 96 102 SHOSHONE RIVER BLACKWATER 9780 20.4 22.0 93 18.1 17.8 102 EVENING STAR 9200 22.9 26.8 85 24.7 22.3 111 KIRWIN 9550 12.2 9.8 124 13.2 10.6 125 MARQUETTE 8760 12.3 8.0 154 12.5 9.3 134 SYLVAN LAKE 8420 17.9 22.0 81 20.5 19.0 108 SYLVAN ROAD 8120 10.6 12.5 85 14.6 15.9 92 YOUNTS PEAK 8350 14.6 17.1 85 14.7 16.4 90 ----- ----- Basin wide percent of average 94 106 POWDER-TONGUE BEAR TRAP MEADOW 7900 5.8 7.1 82 6.8 8.0 85 BONE SPRINGS DIV 9350 16.1 16.2 99 15.5 14.8 105 BURGESS JUNCTION 7880 10.3 11.6 89 11.4 11.2 102 CLOUD PEAK RESERVOIR 9860 13.6 14.6 93 13.7 13.0 105 DOME LAKE 8880 10.7 13.6 79 12.7 12.9 98 GRAVE SPRINGS 8550 8.7 -M * 9.3 9.4 99 HANSEN SAWMILL 8760 7.1 7.0 101 8.9 7.7 116 MIDDLE POWDER 7760 9.9 12.0 83 9.5 11.5 83 POWDER RIVER PASS 9480 10.6 10.7 99 11.4 11.3 101 SUCKER CREEK 8880 11.7 12.0 98 13.1 12.8 102 TIE CREEK 6870 6.8 -M * 11.7 10.7 109 ----- ----- Basin wide percent of average 91 101 BELLE FOURCHE BLIND PARK 6890 8.2 10.9 75 12.4 9.8 127 NORTH RAPID CREEK 6130 9.1 -M * 9.9 -M * WARREN PEAK 6520 11.8 10.9 108 10.1 7.8 129 ----- ----- Basin wide percent of average 92 128 UPPER N. PLATTE RIVER COLUMBINE 9400 20.7 24.6 84 21.4 24.1 89 DIVIDE PEAK 8800 19.2 20.8 92 19.8 22.4 88 ELK RIVER 8700 15.8 19.7 80 17.7 18.8 94 JOE WRIGHT 10120 18.8 21.7 87 21.8 24.5 89 NORTH FRENCH CREEK 10100 29.9 25.1 119 27.9 23.1 121 OLD BATTLE 10000 30.2 31.6 96 33.5 29.6 113 SOUTH BRUSH CREEK 8400 9.3 13.0 72 12.1 16.0 76 TOWER 10500 43.4 44.7 97 37.6 35.6 106 WEBBER SPRINGS 9200 19.5 27.7 70 24.4 24.8 98 WILLOW CREEK PASS 9540 6.5 11.7 56 7.1 12.3 58 ----- ----- Basin wide percent of average 89 97 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.0 25.7 82 20.3 19.0 107 CASPER MTN. 7900 11.7 16.1 73 11.8 13.7 86 DEADMAN HILL 10220 13.9 16.3 85 13.3 16.3 82 DEER PARK 9700 -M -M * 20.0 -M * LAPRELE CREEK 8320 8.8 10.4 85 10.7 11.5 93 RENO HILL 8400 11.7 14.0 84 11.1 18.8 59 ROACH 9700 13.9 17.1 81 16.0 20.7 77 SAND LAKE 10080 25.6 32.5 79 22.7 19.9 114 SOUTH PASS 9040 15.0 16.2 93 16.7 16.8 99 WINDY PEAK 7840 6.8 8.6 79 8.3 9.3 89 ----- ----- Basin wide percent of average 82 90 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.9 11.2 106 15.1 15.0 101 DIVIDE PEAK 8800 19.2 20.8 92 19.8 22.4 88 OLD BATTLE 10000 30.2 31.6 96 33.5 29.6 113 SANDSTONE RS 8150 14.1 14.8 95 18.8 18.3 103 WHISKEY PARK 8950 27.4 28.5 96 26.9 27.6 97 ----- ----- Basin wide percent of average 96 101 UPPER GREEN RIVER BIG SANDY OPENING 9100 11.9 14.5 82 11.0 16.4 67 BLIND BULL SUM 8650 24.0 29.3 82 18.7 24.3 77 EAST RIM DIVIDE 7930 11.9 13.9 86 11.9 15.3 78 ELKHART PARK G.S. 9400 12.2 13.7 89 12.5 16.1 78 GROS VENTRE SUMMIT 8775 11.3 15.6 72 12.4 16.1 77 KENDALL R.S. 7740 13.7 14.6 94 14.4 15.7 92 LOOMIS PARK 8240 13.0 17.4 75 16.6 19.1 87 NEW FORK LAKE 8340 10.7 11.2 96 10.1 14.6 69 SNIDER BASIN 8250 11.8 14.7 80 12.3 15.3 80 SPRING CREEK DIVIDE 9000 22.6 27.9 81 21.5 27.7 78 TRIPLE PEAK 8500 20.9 25.5 82 21.6 31.3 69 ----- ----- Basin wide percent of average 83 77 LOWER GREEN RIVER HAMS FORK 7840 10.0 12.2 82 11.0 13.5 81 HEWINTA 9500 10.2 11.2 91 14.3 12.8 112 HICKERSON PARK 9150 10.9 6.7 163 12.3 9.3 132 HOLE-IN-ROCK 9150 7.8 6.3 124 10.6 9.3 114 INDIAN CREEK 9425 23.9 28.5 84 18.7 26.2 71 KELLEY R.S. 8180 15.1 17.1 88 15.9 19.0 84 STEEL CREEK PARK 10100 15.6 16.2 96 17.4 12.6 138 ----- ----- Basin wide percent of average 95 98 UPPER BEAR RIVER BUG LAKE 7950 19.5 20.9 93 20.9 19.2 109 HAYDEN FORK 9400 12.5 16.3 77 19.9 18.7 106 KELLEY R.S. 8180 15.1 17.1 88 15.9 19.0 84 LILY LAKE 9050 14.4 13.1 110 17.2 14.5 119 MONTE CRISTO 8960 30.1 29.3 103 26.6 25.2 106 SALT RIVER SUMMIT 7600 14.3 14.3 100 17.3 17.1 101 TRIAL LAKE 9960 20.5 24.8 83 22.3 23.6 94 ----- ----- Basin wide percent of average 93 102 ----------------------------------------------------------------------------- -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.