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 WEDNESDAY: JANUARY 21 , 2004 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 12.9 11.1 116 13.8 13.3 104 COTTONWOOD CREEK 7600 11.8 12.6 94 12.9 16.9 76 GRANITE CREEK 6770 11.6 10.7 108 12.4 12.2 102 GRASSY LAKE 7265 22.6 20.1 112 22.4 22.3 100 GROS VENTRE SUMMIT 8775 7.1 8.7 82 7.1 7.9 90 LEWIS LAKE DIVIDE 7860 21.0 20.1 104 21.6 22.3 97 PHILLIPS BENCH 8200 -M 16.4 * -M 17.4 * SALT RIVER SUMMIT 7600 -M 7.8 * 9.0 11.3 80 SNAKE RIVER STATION 6920 -M 10.9 * 14.8 14.0 106 SPRING CREEK DIVIDE 9000 12.7 15.7 81 12.4 16.4 76 THUMB DIVIDE 7980 12.7 10.3 123 12.1 11.4 106 TOGWOTEE PASS 9580 12.7 15.1 84 12.9 15.1 85 TWO OCEAN PLATEAU 9360 17.5 17.1 102 15.8 16.7 95 WILLOW CREEK 8450 16.8 18.1 93 18.2 19.6 93 ----- ----- Basin wide percent of average 100 93 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.7 14.7 80 11.9 12.6 94 BLACK BEAR 8170 26.4 22.9 115 24.2 23.1 105 CANYON 8090 7.5 8.0 94 8.5 9.7 88 FISHER CREEK 9100 18.7 21.5 87 18.6 21.9 85 MADISON PLATEAU 7750 16.0 14.6 110 15.5 15.7 99 NORTHEAST ENTRANCE 7350 4.2 6.9 61 6.8 8.0 85 PARKER PEAK 9400 11.3 13.4 84 9.0 10.1 89 SYLVAN LAKE 8420 10.1 13.6 74 12.4 13.5 92 THUMB DIVIDE 7980 12.7 10.3 123 12.1 11.4 106 TWO OCEAN PLATEAU 9360 17.5 17.1 102 15.8 16.7 95 WHISKEY CREEK 6800 11.6 9.9 117 13.5 12.4 109 WHITE MILL 8700 10.7 14.6 73 12.2 16.3 75 WOLVERINE 7650 5.9 7.7 77 5.9 8.4 70 ----- ----- Basin wide percent of average 94 93 WIND RIVER BURROUGHS CREEK 8750 7.4 9.1 81 8.3 10.1 82 COLD SPRINGS 9630 3.5 5.5 64 3.8 6.6 58 DEER PARK 9700 10.4 10.0 104 12.2 13.2 92 HOBBS PARK 10100 6.9 9.2 75 6.1 7.6 80 LITTLE WARM 9370 4.9 7.0 70 5.6 8.2 68 SOUTH PASS 9040 10.6 10.3 103 10.6 11.1 95 ST. LAWRENCE ALT 8620 2.8 4.5 62 3.5 5.3 66 TOGWOTEE PASS 9580 12.7 15.1 84 12.9 15.1 85 TOWNSEND CREEK 8700 4.9 5.2 94 5.9 6.8 87 ----- ----- Basin wide percent of average 84 82 BIGHORN BASIN BALD MTN. 9380 9.4 12.3 76 8.1 10.6 76 BEAR TRAP MEADOW 8200 4.0 3.2 125 3.9 5.1 76 BLACKWATER 9780 14.2 15.0 95 12.6 13.0 97 BONE SPRINGS DIV 9350 8.0 9.8 82 8.3 8.8 94 EVENING STAR 9200 12.8 17.8 72 15.7 16.0 98 GRAVE SPRINGS 8550 6.0 5.2 115 5.5 5.9 93 KIRWIN 9550 3.9 7.2 54 4.7 7.0 67 MARQUETTE 8760 4.3 5.6 77 4.6 5.9 78 MIDDLE POWDER 7760 6.6 6.6 100 5.3 7.8 68 OWL CREEK 8975 2.2 3.1 71 2.3 3.4 68 POWDER RIVER PASS 9480 6.3 6.6 95 7.0 7.5 93 SHELL CREEK 9580 8.5 9.1 93 8.1 8.4 96 SYLVAN LAKE 8420 10.1 13.6 74 12.4 13.5 92 SYLVAN ROAD 7120 7.4 8.0 92 10.0 12.2 82 TIMBER CREEK 7950 1.9 3.4 56 2.8 4.2 67 YOUNTS PEAK 8350 6.5 10.6 61 7.9 10.3 77 ----- ----- Basin wide percent of average 82 85 SHOSHONE RIVER BLACKWATER 9780 14.2 15.0 95 12.6 13.0 97 EVENING STAR 9200 12.8 17.8 72 15.7 16.0 98 KIRWIN 9550 3.9 7.2 54 4.7 7.0 67 MARQUETTE 8760 4.3 5.6 77 4.6 5.9 78 SYLVAN LAKE 8420 10.1 13.6 74 12.4 13.5 92 SYLVAN ROAD 7120 7.4 8.0 92 10.0 12.2 82 YOUNTS PEAK 8350 6.5 10.6 61 7.9 10.3 77 ----- ----- Basin wide percent of average 76 87 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.0 3.2 125 3.9 5.1 76 BIG GOOSE 7990 4.3 5.5 78 4.9 5.3 92 BONE SPRINGS DIV 9350 8.0 9.8 82 8.3 8.8 94 BURGESS JUNCTION 7880 5.4 6.8 79 5.5 7.3 75 CLOUD PEAK RESERVOIR 9860 7.3 7.3 100 5.9 7.6 78 DOME LAKE 8880 -M 7.3 * -M 8.1 * GRAVE SPRINGS 8550 6.0 5.2 115 5.5 5.9 93 HANSEN SAWMILL 8360 3.9 3.9 100 3.8 4.9 78 MIDDLE POWDER 7760 6.6 6.6 100 5.3 7.8 68 POWDER RIVER PASS 9480 6.3 6.6 95 7.0 7.5 93 SUCKER CREEK 8880 5.8 6.6 88 6.7 8.1 83 TIE CREEK 6870 3.3 3.7 89 4.6 6.2 74 ----- ----- Basin wide percent of average 93 82 BELLE FOURCHE BLIND PARK 6890 3.5 4.7 74 5.5 7.2 76 COLE CANYON 5910 2.7 3.7 73 3.8 -M * NORTH RAPID CREEK 6130 3.1 4.4 70 4.4 5.9 75 ----- ----- Basin wide percent of average 73 76 UPPER N. PLATTE RIVER COLUMBINE 9400 12.8 14.1 91 14.3 14.9 96 DIVIDE PEAK 8800 11.1 11.8 94 11.9 12.4 96 ELK RIVER 8700 10.6 10.5 101 12.5 11.4 110 JOE WRIGHT 10120 8.0 12.4 65 10.3 14.7 70 NORTH FRENCH CREEK 10100 12.6 16.7 75 11.8 14.8 80 OLD BATTLE 10000 19.4 18.1 107 20.7 20.1 103 SAGE CREEK BASIN 7850 8.4 6.8 124 9.6 7.2 133 SOUTH BRUSH CREEK 8400 5.1 6.6 77 5.9 9.8 60 TOWER 10500 22.9 26.7 86 24.6 22.7 108 WEBBER SPRINGS 9200 14.8 14.4 103 16.2 16.2 100 WILLOW CREEK PASS 9540 5.8 6.8 85 5.0 7.6 66 ----- ----- Basin wide percent of average 91 94 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.5 13.7 69 9.1 12.8 71 CASPER MTN. 7900 5.7 8.3 69 5.0 8.3 60 DEADMAN HILL 10220 6.3 9.6 66 8.9 9.6 93 DEER PARK 9700 10.4 10.0 104 12.2 13.2 92 LAPRELE CREEK 8320 5.2 6.7 78 5.6 7.4 76 RENO HILL 8400 6.9 7.8 88 6.4 8.6 74 ROACH 9700 9.7 9.7 100 10.6 10.6 100 SAND LAKE 10080 12.8 18.2 70 12.2 14.4 85 SOUTH PASS 9040 10.6 10.3 103 10.6 11.1 95 WINDY PEAK 7840 3.1 4.1 76 4.1 6.5 63 ----- ----- Basin wide percent of average 82 83 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.1 6.5 140 9.2 8.9 103 DIVIDE PEAK 8800 11.1 11.8 94 11.9 12.4 96 OLD BATTLE 10000 19.4 18.1 107 20.7 20.1 103 SANDSTONE RS 8150 7.0 8.1 86 12.6 11.2 112 WHISKEY PARK 8950 15.1 15.8 96 15.8 17.2 92 ----- ----- Basin wide percent of average 102 101 UPPER GREEN RIVER BIG SANDY OPENING 9100 8.5 8.6 99 8.0 8.1 99 BLIND BULL SUM 8650 14.1 16.7 84 11.5 13.9 83 EAST RIM DIVIDE 7930 6.8 7.6 89 7.1 7.3 97 ELKHART PARK G.S. 9400 7.5 7.9 95 7.9 8.1 98 GROS VENTRE SUMMIT 8775 7.1 8.7 82 7.1 7.9 90 KENDALL R.S. 7740 -M 8.8 * 8.8 8.7 101 LOOMIS PARK 8240 -M 10.1 * -M 10.6 * NEW FORK LAKE 8340 6.5 6.9 94 6.1 7.2 85 SNIDER BASIN 8250 7.9 8.8 90 7.9 10.0 79 SPRING CREEK DIVIDE 9000 12.7 15.7 81 12.4 16.4 76 TRIPLE PEAK 8500 12.4 15.0 83 13.8 14.4 96 ----- ----- Basin wide percent of average 87 89 LOWER GREEN RIVER HAMS FORK 7840 6.6 7.4 89 6.2 7.5 83 HEWINTA 9500 -M 5.7 * -M 8.5 * HICKERSON PARK 9150 2.8 3.9 72 5.0 4.8 104 HOLE-IN-ROCK 9150 3.8 3.6 106 4.1 4.5 91 INDIAN CREEK 9425 13.6 15.9 86 12.0 15.2 79 KELLEY R.S. 8180 -M 9.6 * 10.0 12.6 79 STEEL CREEK PARK 10100 6.5 8.4 77 6.9 9.2 75 ----- ----- Basin wide percent of average 85 82 UPPER BEAR RIVER BUG LAKE 7950 11.5 11.5 100 11.3 11.6 97 HAYDEN FORK 9400 6.7 8.6 78 10.2 12.3 83 KELLEY R.S. 8180 -M 9.6 * 10.0 12.6 79 LILY LAKE 9050 5.7 7.2 79 7.8 10.5 74 MONTE CRISTO 8960 14.3 15.6 92 14.9 15.1 99 SALT RIVER SUMMIT 7600 -M 7.8 * 9.0 11.3 80 TRIAL LAKE 9960 12.3 13.8 89 14.0 14.2 99 ----- ----- Basin wide percent of average 89 88 ----------------------------------------------------------------------------- -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 1971-2000. 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.