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: FEBRUARY 15 , 2000 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.9 14.1 99 14.6 18.2 80 COTTONWOOD CREEK 7600 17.3 16.4 105 17.0 19.8 86 GRANITE CREEK 6770 13.5 13.9 97 13.8 19.2 72 GRASSY LAKE 7265 24.2 29.8 81 23.4 29.4 80 GROS VENTRE SUMMIT 8775 7.9 11.7 68 6.8 12.9 53 LEWIS LAKE DIVIDE 7860 19.5 26.4 74 21.4 29.9 72 PHILLIPS BENCH 8200 17.7 22.0 80 17.2 23.7 73 SALT RIVER SUMMIT 7600 10.5 10.6 99 10.8 13.7 79 SNAKE RIVER STATION 6920 13.4 14.5 92 15.6 20.7 75 SPRING CREEK DIVIDE 9000 19.0 20.7 92 17.9 21.8 82 THUMB DIVIDE 7980 10.9 12.9 84 11.0 17.1 64 TOGWOTEE PASS 9580 15.1 18.9 80 16.2 22.4 72 TWO OCEAN PLATEAU 9360 18.5 20.4 91 15.7 25.1 63 WILLOW CREEK 8450 21.3 23.8 89 21.8 25.7 85 ----- ----- Basin wide percent of average 87 74 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 17.0 18.0 94 15.6 13.6 115 BLACK BEAR 7950 -M 28.3 * -M 30.1 * CANYON 7940 10.6 9.5 112 11.2 11.0 102 FISHER CREEK 9100 26.1 27.3 96 24.7 27.6 89 MADISON PLATEAU 7750 14.7 18.5 79 16.2 19.6 83 NORTHEAST ENTRANCE 7350 8.9 7.3 122 10.4 9.2 113 PARKER PEAK 9400 14.0 16.2 86 -M 11.8 * SYLVAN LAKE 8420 14.5 16.8 86 16.1 14.8 109 THUMB DIVIDE 7980 10.9 12.9 84 11.0 17.1 64 TWO OCEAN PLATEAU 9360 18.5 20.4 91 15.7 25.1 63 WHISKEY CREEK 6800 -M 12.8 * -M 16.2 * WHITE MILL 8700 20.0 19.3 104 17.6 21.6 81 WOLVERINE 7650 10.4 9.1 114 8.9 9.9 90 ----- ----- Basin wide percent of average 94 87 WIND RIVER BURROUGHS CREEK 8750 9.7 11.9 82 10.1 12.7 80 COLD SPRINGS 9630 4.3 6.4 67 5.4 7.7 70 DEER PARK 9700 10.1 -M * -M -M * HOBBS PARK 10100 7.3 11.0 66 6.0 10.2 59 LITTLE WARM 9620 7.7 8.2 94 8.5 9.9 86 SOUTH PASS 9040 10.1 12.7 80 9.7 12.3 79 ST. LAWRENCE ALT 8620 2.4 5.5 44 3.3 7.2 46 TOGWOTEE PASS 9580 15.1 18.9 80 16.2 22.4 72 TOWNSEND CREEK 8700 3.8 7.1 54 4.7 8.8 53 ----- ----- Basin wide percent of average 74 70 BIGHORN BASIN BALD MTN. 9375 15.3 15.5 99 14.2 12.9 110 BEAR TRAP MEADOW 7900 4.0 5.4 74 3.7 5.8 64 BLACKWATER 9780 13.3 16.0 83 12.6 13.7 92 BONE SPRINGS DIV 9350 11.7 12.0 98 11.4 10.6 108 EVENING STAR 9200 20.1 20.4 99 20.4 17.1 119 GRAVE SPRINGS 8550 4.8 6.8 71 4.8 6.9 70 KIRWIN 9550 5.4 7.3 74 6.5 7.7 84 MARQUETTE 8760 3.6 5.9 61 3.8 6.4 59 MIDDLE POWDER 7760 7.0 8.7 80 5.5 8.5 65 OWL CREEK 8975 2.2 3.2 69 2.6 4.3 60 POWDER RIVER PASS 9480 7.0 7.9 89 8.3 8.6 97 SHELL CREEK 9580 11.6 11.5 101 10.3 9.8 105 SYLVAN LAKE 8420 14.5 16.8 86 16.1 14.8 109 SYLVAN ROAD 8120 11.0 9.9 111 12.9 12.3 105 TIMBER CREEK 7950 .9 4.3 21 2.3 4.7 49 YOUNTS PEAK 8350 11.8 13.5 87 9.6 12.6 76 ----- ----- Basin wide percent of average 87 93 SHOSHONE RIVER BLACKWATER 9780 13.3 16.0 83 12.6 13.7 92 EVENING STAR 9200 20.1 20.4 99 20.4 17.1 119 KIRWIN 9550 5.4 7.3 74 6.5 7.7 84 MARQUETTE 8760 3.6 5.9 61 3.8 6.4 59 SYLVAN LAKE 8420 14.5 16.8 86 16.1 14.8 109 SYLVAN ROAD 8120 11.0 9.9 111 12.9 12.3 105 YOUNTS PEAK 8350 11.8 13.5 87 9.6 12.6 76 ----- ----- Basin wide percent of average 89 97 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.0 5.4 74 3.7 5.8 64 BIG GOOSE 7990 5.7 -M * 6.5 -M * BONE SPRINGS DIV 9350 11.7 12.0 98 11.4 10.6 108 BURGESS JUNCTION 7880 7.8 8.6 91 8.2 7.8 105 CLOUD PEAK RESERVOIR 9860 11.3 9.6 118 9.6 9.2 104 DOME LAKE 8880 7.9 10.1 78 8.9 9.6 93 GRAVE SPRINGS 8550 4.8 6.8 71 4.8 6.9 70 HANSEN SAWMILL 8760 4.8 5.2 92 5.2 5.5 95 MIDDLE POWDER 7760 7.0 8.7 80 5.5 8.5 65 POWDER RIVER PASS 9480 7.0 7.9 89 8.3 8.6 97 SUCKER CREEK 8880 8.6 8.7 99 10.8 9.6 113 TIE CREEK 6870 5.0 -M * 7.0 7.5 93 ----- ----- Basin wide percent of average 90 93 BELLE FOURCHE BLIND PARK 6890 4.7 8.2 57 4.9 6.8 72 NORTH RAPID CREEK 6130 4.2 -M * 4.1 -M * WARREN PEAK 6520 6.2 8.2 76 5.5 5.7 96 ----- ----- Basin wide percent of average 66 83 UPPER N. PLATTE RIVER COLUMBINE 9400 21.8 18.4 118 18.4 18.4 100 DIVIDE PEAK 8800 12.5 15.1 83 12.3 17.4 71 ELK RIVER 8700 14.0 14.8 95 12.4 14.0 89 JOE WRIGHT 10120 14.3 15.8 91 16.5 18.4 90 NORTH FRENCH CREEK 10100 19.3 18.2 106 17.3 17.0 102 OLD BATTLE 10000 19.1 23.4 82 21.5 21.9 98 SOUTH BRUSH CREEK 8400 7.7 8.2 94 8.3 11.8 70 TOWER 10500 34.0 33.8 101 24.9 27.1 92 WEBBER SPRINGS 9200 15.1 20.0 76 15.2 18.6 82 WILLOW CREEK PASS 9540 9.1 8.3 110 9.4 8.8 107 ----- ----- Basin wide percent of average 95 90 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.1 17.9 79 13.7 13.8 99 CASPER MTN. 7900 10.6 10.8 98 7.8 9.7 80 DEADMAN HILL 10220 8.3 12.4 67 9.8 11.7 84 DEER PARK 9700 10.1 -M * -M -M * LAPRELE CREEK 8320 6.7 7.5 89 7.1 8.3 86 RENO HILL 8400 8.6 9.5 91 8.1 13.0 62 ROACH 9700 11.0 12.5 88 12.4 15.8 78 SAND LAKE 10080 16.8 24.1 70 14.6 14.8 99 SOUTH PASS 9040 10.1 12.7 80 9.7 12.3 79 WINDY PEAK 7840 4.4 5.3 83 6.1 6.5 94 ----- ----- Basin wide percent of average 80 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.6 8.5 101 9.3 11.8 79 DIVIDE PEAK 8800 12.5 15.1 83 12.3 17.4 71 OLD BATTLE 10000 19.1 23.4 82 21.5 21.9 98 SANDSTONE RS 8150 12.3 10.8 114 12.2 14.4 85 WHISKEY PARK 8950 19.0 21.0 90 20.4 21.2 96 ----- ----- Basin wide percent of average 91 87 UPPER GREEN RIVER BIG SANDY OPENING 9100 8.3 10.7 78 7.3 13.2 55 BLIND BULL SUM 8650 21.0 21.8 96 14.8 18.9 78 EAST RIM DIVIDE 7930 8.5 10.6 80 8.0 12.3 65 ELKHART PARK G.S. 9400 8.9 10.4 86 8.4 13.0 65 GROS VENTRE SUMMIT 8775 7.9 11.7 68 6.8 12.9 53 KENDALL R.S. 7740 11.6 11.2 104 11.0 12.6 87 LOOMIS PARK 8240 13.0 13.4 97 13.0 15.3 85 NEW FORK LAKE 8340 8.0 8.9 90 7.0 11.8 59 SNIDER BASIN 8250 9.8 11.3 87 9.3 12.3 76 SPRING CREEK DIVIDE 9000 19.0 20.7 92 17.9 21.8 82 TRIPLE PEAK 8500 18.9 19.7 96 19.2 25.3 76 ----- ----- Basin wide percent of average 90 72 LOWER GREEN RIVER HAMS FORK 7840 9.9 9.4 105 6.7 10.9 61 HEWINTA 9500 7.6 7.3 104 8.3 9.3 89 HICKERSON PARK 9150 3.5 4.3 81 4.3 6.6 65 HOLE-IN-ROCK 9150 4.1 3.9 105 4.7 6.6 71 INDIAN CREEK 9425 16.7 20.6 81 14.2 20.4 70 KELLEY R.S. 8180 10.3 12.6 82 10.6 15.2 70 STEEL CREEK PARK 10100 9.1 10.9 83 9.2 9.4 98 ----- ----- Basin wide percent of average 89 74 UPPER BEAR RIVER BUG LAKE 7950 9.9 14.8 67 9.0 14.4 62 HAYDEN FORK 9400 10.7 12.0 89 12.3 13.6 90 KELLEY R.S. 8180 10.3 12.6 82 10.6 15.2 70 LILY LAKE 9050 7.4 9.5 78 9.3 10.6 88 MONTE CRISTO 8960 14.3 19.9 72 13.2 18.6 71 SALT RIVER SUMMIT 7600 10.5 10.6 99 10.8 13.7 79 TRIAL LAKE 9960 16.5 18.2 91 15.6 17.4 90 ----- ----- Basin wide percent of average 82 78 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values 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.