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: JANUARY 31 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.4 12.4 108 15.7 16.1 98 COTTONWOOD CREEK 7600 14.8 13.9 106 16.0 17.1 94 GRANITE CREEK 6770 12.7 12.2 104 14.8 17.0 87 GRASSY LAKE 7265 23.9 22.7 105 24.7 26.1 95 GROS VENTRE SUMMIT 8775 7.4 10.5 70 8.7 11.5 76 LEWIS LAKE DIVIDE 7860 21.1 22.5 94 22.7 26.6 85 PHILLIPS BENCH 8200 19.0 19.2 99 19.2 21.1 91 SALT RIVER SUMMIT 7600 10.3 8.9 116 12.3 12.2 101 SNAKE RIVER STATION 6920 12.7 12.3 103 15.7 18.4 85 SPRING CREEK DIVIDE 9000 15.5 18.0 86 15.7 19.2 82 THUMB DIVIDE 7980 11.2 11.3 99 12.5 15.1 83 TOGWOTEE PASS 9580 13.8 16.7 83 15.4 19.9 77 TWO OCEAN PLATEAU 9360 20.3 18.1 112 20.4 22.3 91 WILLOW CREEK 8450 18.7 20.8 90 21.4 22.6 95 ----- ----- Basin wide percent of average 98 89 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 15.4 15.9 97 13.4 12.0 112 BLACK BEAR 7950 26.5 24.2 110 25.0 26.2 95 CANYON 7940 9.6 8.2 117 11.0 9.8 112 FISHER CREEK 9100 23.1 23.9 97 20.6 24.3 85 MADISON PLATEAU 7750 13.9 15.9 87 15.4 17.1 90 NORTHEAST ENTRANCE 7350 5.5 6.3 87 9.5 8.2 116 PARKER PEAK 9400 13.7 14.2 96 11.9 10.4 114 SYLVAN LAKE 8420 11.9 14.8 80 14.5 13.1 111 THUMB DIVIDE 7980 11.2 11.3 99 12.5 15.1 83 TWO OCEAN PLATEAU 9360 20.3 18.1 112 20.4 22.3 91 WHISKEY CREEK 6800 9.5 11.1 86 12.2 14.2 86 WHITE MILL 8700 17.5 16.6 105 16.2 19.1 85 WOLVERINE 7650 8.0 7.8 103 8.3 8.7 95 ----- ----- Basin wide percent of average 99 95 WIND RIVER BURROUGHS CREEK 8750 11.5 10.3 112 12.6 11.2 113 COLD SPRINGS 9630 6.7 5.8 116 7.5 6.9 109 DEER PARK 9700 -M -M * 12.7 -M * HOBBS PARK 10100 9.5 9.9 96 8.3 9.1 91 LITTLE WARM 9620 7.3 7.1 103 9.2 8.8 105 SOUTH PASS 9040 9.6 11.2 86 10.7 10.7 100 ST. LAWRENCE ALT 8620 6.6 4.8 138 6.5 6.3 103 TOGWOTEE PASS 9580 13.8 16.7 83 15.4 19.9 77 TOWNSEND CREEK 8700 6.9 6.1 113 8.5 7.7 110 ----- ----- Basin wide percent of average 100 98 BIGHORN BASIN BALD MTN. 9375 13.4 13.7 98 11.8 11.6 102 BEAR TRAP MEADOW 7900 3.6 4.8 75 4.3 5.4 80 BLACKWATER 9780 15.9 13.9 114 13.9 12.1 115 BONE SPRINGS DIV 9350 10.6 10.5 101 10.8 9.3 116 EVENING STAR 9200 17.7 17.7 100 19.1 15.2 126 GRAVE SPRINGS 8550 4.7 -M * 5.2 6.4 81 KIRWIN 9550 9.2 6.6 139 10.3 6.7 154 MARQUETTE 8760 8.8 5.1 173 9.1 5.8 157 MIDDLE POWDER 7760 5.7 7.7 74 6.2 7.7 81 OWL CREEK 8975 4.2 2.8 150 4.3 3.8 113 POWDER RIVER PASS 9480 6.7 6.9 97 7.5 7.7 97 SHELL CREEK 9580 9.3 10.1 92 7.3 8.8 83 SYLVAN LAKE 8420 11.9 14.8 80 14.5 13.1 111 SYLVAN ROAD 8120 7.9 8.4 94 11.6 11.0 105 TIMBER CREEK 7950 5.6 3.6 156 6.8 4.2 162 YOUNTS PEAK 8350 11.7 12.1 97 11.7 11.2 104 ----- ----- Basin wide percent of average 103 110 SHOSHONE RIVER BLACKWATER 9780 15.9 13.9 114 13.9 12.1 115 EVENING STAR 9200 17.7 17.7 100 19.1 15.2 126 KIRWIN 9550 9.2 6.6 139 10.3 6.7 154 MARQUETTE 8760 8.8 5.1 173 9.1 5.8 157 SYLVAN LAKE 8420 11.9 14.8 80 14.5 13.1 111 SYLVAN ROAD 8120 7.9 8.4 94 11.6 11.0 105 YOUNTS PEAK 8350 11.7 12.1 97 11.7 11.2 104 ----- ----- Basin wide percent of average 106 120 POWDER-TONGUE BEAR TRAP MEADOW 7900 3.6 4.8 75 4.3 5.4 80 BONE SPRINGS DIV 9350 10.6 10.5 101 10.8 9.3 116 BURGESS JUNCTION 7880 6.6 7.5 88 7.7 7.1 108 CLOUD PEAK RESERVOIR 9860 8.2 7.9 104 8.9 8.0 111 DOME LAKE 8880 6.8 8.9 76 9.0 8.6 105 GRAVE SPRINGS 8550 4.7 -M * 5.2 6.4 81 HANSEN SAWMILL 8760 4.6 4.6 100 5.4 5.0 108 MIDDLE POWDER 7760 5.7 7.7 74 6.2 7.7 81 POWDER RIVER PASS 9480 6.7 6.9 97 7.5 7.7 97 SUCKER CREEK 8880 7.7 7.4 104 9.3 8.5 109 TIE CREEK 6870 5.0 -M * 8.5 6.8 125 ----- ----- Basin wide percent of average 91 103 BELLE FOURCHE BLIND PARK 6890 5.4 7.1 76 7.8 6.1 128 NORTH RAPID CREEK 6130 5.4 -M * 6.2 -M * WARREN PEAK 6520 6.0 7.1 85 6.4 5.2 123 ----- ----- Basin wide percent of average 80 126 UPPER N. PLATTE RIVER COLUMBINE 9400 14.1 15.6 90 15.2 16.2 94 DIVIDE PEAK 8800 11.2 13.2 85 13.1 16.0 82 ELK RIVER 8700 9.8 12.4 79 11.2 12.4 90 JOE WRIGHT 10120 12.5 13.9 90 15.2 16.3 93 NORTH FRENCH CREEK 10100 17.6 15.9 111 17.0 15.0 113 OLD BATTLE 10000 18.5 20.3 91 22.9 19.2 119 SOUTH BRUSH CREEK 8400 5.1 7.0 73 6.1 10.7 57 TOWER 10500 27.5 29.7 93 24.5 23.9 103 WEBBER SPRINGS 9200 13.3 17.2 77 17.1 16.5 104 WILLOW CREEK PASS 9540 4.1 7.3 56 4.8 7.7 62 ----- ----- Basin wide percent of average 88 96 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 11.9 15.9 75 13.3 12.0 111 CASPER MTN. 7900 8.7 9.3 94 8.6 8.6 100 DEADMAN HILL 10220 9.8 11.0 89 9.3 10.2 91 DEER PARK 9700 -M -M * 12.7 -M * LAPRELE CREEK 8320 5.5 6.5 85 6.6 7.5 88 RENO HILL 8400 8.1 8.2 99 7.4 11.3 65 ROACH 9700 9.6 10.9 88 11.5 14.1 82 SAND LAKE 10080 16.5 21.0 79 15.0 12.9 116 SOUTH PASS 9040 9.6 11.2 86 10.7 10.7 100 WINDY PEAK 7840 4.1 4.5 91 5.3 5.8 91 ----- ----- Basin wide percent of average 85 94 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.0 7.2 83 9.8 10.8 91 DIVIDE PEAK 8800 11.2 13.2 85 13.1 16.0 82 OLD BATTLE 10000 18.5 20.3 91 22.9 19.2 119 SANDSTONE RS 8150 8.8 9.2 96 12.1 13.2 92 WHISKEY PARK 8950 17.6 18.2 97 18.4 19.7 93 ----- ----- Basin wide percent of average 91 97 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.2 9.5 76 6.7 11.8 57 BLIND BULL SUM 8650 17.4 18.8 93 13.4 16.6 81 EAST RIM DIVIDE 7930 7.3 9.2 79 7.6 11.0 69 ELKHART PARK G.S. 9400 8.1 8.8 92 8.5 11.6 73 GROS VENTRE SUMMIT 8775 7.4 10.5 70 8.7 11.5 76 KENDALL R.S. 7740 10.2 9.8 104 10.5 11.2 94 LOOMIS PARK 8240 9.7 11.5 84 10.8 13.7 79 NEW FORK LAKE 8340 7.0 7.8 90 7.3 10.5 70 SNIDER BASIN 8250 8.4 9.8 86 8.7 11.0 79 SPRING CREEK DIVIDE 9000 15.5 18.0 86 15.7 19.2 82 TRIPLE PEAK 8500 15.8 17.2 92 16.1 22.5 72 ----- ----- Basin wide percent of average 87 76 LOWER GREEN RIVER HAMS FORK 7840 7.9 8.0 99 6.8 9.7 70 HEWINTA 9500 7.9 6.1 130 10.4 8.3 125 HICKERSON PARK 9150 6.3 3.5 180 8.3 6.0 138 HOLE-IN-ROCK 9150 4.7 3.2 147 7.3 6.0 122 INDIAN CREEK 9425 16.0 17.7 90 12.7 18.1 70 KELLEY R.S. 8180 10.6 10.6 100 11.1 13.6 82 STEEL CREEK PARK 10100 9.6 9.7 99 12.4 8.5 146 ----- ----- Basin wide percent of average 107 98 UPPER BEAR RIVER BUG LAKE 7950 14.5 12.8 113 14.3 12.7 113 HAYDEN FORK 9400 8.8 10.1 87 13.2 11.8 112 KELLEY R.S. 8180 10.6 10.6 100 11.1 13.6 82 LILY LAKE 9050 8.7 8.0 109 10.7 9.4 114 MONTE CRISTO 8960 19.8 17.1 116 17.8 16.4 109 SALT RIVER SUMMIT 7600 10.3 8.9 116 12.3 12.2 101 TRIAL LAKE 9960 12.7 15.7 81 13.7 15.1 91 ----- ----- Basin wide percent of average 103 102 ----------------------------------------------------------------------------- -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.