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 MONDAY: APRIL 3 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 21.0 17.9 117 25.4 21.9 116 COTTONWOOD CREEK 7600 29.8 24.1 124 31.7 28.1 113 GRANITE CREEK 6770 21.4 18.4 116 23.6 20.3 116 GRASSY LAKE 7265 39.0 36.2 108 42.3 36.7 115 GROS VENTRE SUMMIT 8750 12.6 14.4 88 12.9 13.2 98 LEWIS LAKE DIVIDE 7850 41.6 35.9 116 39.5 37.5 105 PHILLIPS BENCH 8200 35.0 29.4 119 34.7 29.6 117 SALT RIVER SUMMIT 7600 17.0 14.6 116 19.6 19.2 102 SNAKE RIVER STATION 6920 21.7 19.0 114 26.2 22.7 115 SPRING CREEK DIVIDE 9000 31.6 27.1 117 -M 27.0 * THUMB DIVIDE 7980 19.6 19.1 103 19.1 19.3 99 TOGWOTEE PASS 9580 25.0 25.4 98 26.0 25.2 103 TWO OCEAN PLATEAU 9240 35.4 28.7 123 28.9 28.3 102 WILLOW CREEK 8450 36.7 30.8 119 40.7 32.9 124 ----- ----- Basin wide percent of average 114 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 21.3 23.9 89 18.9 20.5 92 BLACK BEAR 8170 49.6 40.0 124 -M 41.2 * CANYON 8090 15.0 13.9 108 17.4 15.7 111 FISHER CREEK 9100 39.2 35.6 110 36.9 37.1 99 MADISON PLATEAU 7750 28.2 25.6 110 33.0 27.3 121 NORTHEAST ENTRANCE 7350 10.3 11.2 92 12.4 12.9 96 PARKER PEAK 9400 18.7 22.1 85 16.9 16.6 102 SYLVAN LAKE 8420 18.5 23.0 80 22.4 21.3 105 THUMB DIVIDE 7980 19.6 19.1 103 19.1 19.3 99 TWO OCEAN PLATEAU 9240 35.4 28.7 123 28.9 28.3 102 WHISKEY CREEK 6800 16.4 17.5 94 23.6 21.4 110 WHITE MILL 8700 25.8 24.8 104 23.4 27.6 85 WOLVERINE 7650 8.5 11.5 74 8.7 13.1 66 ----- ----- Basin wide percent of average 103 100 WIND RIVER BURROUGHS CREEK 8750 13.9 14.8 94 16.0 16.6 96 COLD SPRINGS 9630 5.8 8.7 67 8.5 10.9 78 DEER PARK 9700 17.0 17.1 99 20.6 22.4 92 HOBBS PARK 10100 11.0 15.3 72 11.5 13.2 87 LITTLE WARM 9370 9.4 12.1 78 11.9 13.7 87 SOUTH PASS 9040 16.2 16.8 96 16.8 18.9 89 ST. LAWRENCE ALT 8620 3.9 7.4 53 6.5 9.1 71 TOGWOTEE PASS 9580 25.0 25.4 98 26.0 25.2 103 TOWNSEND CREEK 8700 6.6 8.9 74 9.2 12.0 77 ----- ----- Basin wide percent of average 86 89 BIGHORN BASIN BALD MTN. 9380 16.5 20.2 82 13.3 17.8 75 BEAR TRAP MEADOW 8200 6.0 5.1 118 7.8 8.5 92 BLACKWATER 9780 22.3 25.1 89 20.2 21.0 96 BONE SPRINGS DIV 9350 14.2 16.6 86 14.8 14.9 99 EVENING STAR 9200 24.7 30.4 81 27.4 25.8 106 GRAVE SPRINGS 8550 9.9 9.6 103 11.6 9.9 117 KIRWIN 9550 9.7 11.6 84 10.6 11.5 92 MARQUETTE 8760 2.4 9.2 26 7.1 10.1 70 MIDDLE POWDER 7760 12.7 12.1 105 10.0 12.6 79 OWL CREEK 8975 3.2 5.5 58 5.8 6.1 95 POWDER RIVER PASS 9480 10.2 11.0 93 11.8 12.6 94 SHELL CREEK 9580 14.3 15.1 95 13.3 13.6 98 SYLVAN LAKE 8420 18.5 23.0 80 22.4 21.3 105 SYLVAN ROAD 7120 11.0 12.8 86 16.5 18.0 92 TIMBER CREEK 7950 2.9 5.8 50 5.0 7.6 66 YOUNTS PEAK 8350 -M 17.4 * 17.2 16.5 104 ----- ----- Basin wide percent of average 84 94 SHOSHONE RIVER BLACKWATER 9780 22.3 25.1 89 20.2 21.0 96 EVENING STAR 9200 24.7 30.4 81 27.4 25.8 106 KIRWIN 9550 9.7 11.6 84 10.6 11.5 92 MARQUETTE 8760 2.4 9.2 26 7.1 10.1 70 SYLVAN LAKE 8420 18.5 23.0 80 22.4 21.3 105 SYLVAN ROAD 7120 11.0 12.8 86 16.5 18.0 92 YOUNTS PEAK 8350 -M 17.4 * 17.2 16.5 104 ----- ----- Basin wide percent of average 79 98 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.0 5.1 118 7.8 8.5 92 BIG GOOSE 7990 6.7 10.9 61 8.7 8.8 99 BONE SPRINGS DIV 9350 14.2 16.6 86 14.8 14.9 99 BURGESS JUNCTION 7880 9.8 11.9 82 10.6 12.4 85 CLOUD PEAK RESERVOIR 9860 13.0 13.8 94 11.9 13.2 90 DOME LAKE 8880 10.4 12.8 81 11.2 13.4 84 GRAVE SPRINGS 8550 9.9 9.6 103 11.6 9.9 117 HANSEN SAWMILL 8360 5.0 6.5 77 7.2 8.4 86 MIDDLE POWDER 7760 12.7 12.1 105 10.0 12.6 79 POWDER RIVER PASS 9480 10.2 11.0 93 11.8 12.6 94 SUCKER CREEK 8880 10.5 12.0 88 13.5 13.9 97 TIE CREEK 6870 4.7 6.0 78 9.9 10.1 98 ----- ----- Basin wide percent of average 88 93 BELLE FOURCHE BLIND PARK 6890 7.6 8.5 89 10.8 11.3 96 COLE CANYON 5910 5.1 6.1 84 9.1 -M * NORTH RAPID CREEK 6130 6.6 8.4 79 8.7 8.8 99 ----- ----- Basin wide percent of average 84 97 UPPER N. PLATTE RIVER COLUMBINE 9160 31.1 25.0 124 33.6 25.6 131 DIVIDE PEAK 8860 19.7 20.1 98 22.4 21.0 107 ELK RIVER 8700 21.3 19.6 109 21.5 19.9 108 JOE WRIGHT 10120 22.0 21.8 101 26.0 25.2 103 NORTH FRENCH CREEK 10130 33.8 29.9 113 32.5 25.1 129 OLD BATTLE 9920 38.0 32.7 116 41.7 35.1 119 SAGE CREEK BASIN 7850 13.1 11.7 112 14.7 12.2 120 SOUTH BRUSH CREEK 8440 13.1 13.2 99 17.0 16.6 102 TOWER 10500 51.7 46.3 112 46.9 39.0 120 WEBBER SPRINGS 9250 29.0 26.4 110 34.4 27.1 127 WILLOW CREEK PASS 9540 12.1 12.3 98 13.7 13.1 105 ----- ----- Basin wide percent of average 110 117 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 25.8 24.3 106 22.1 22.4 99 CASPER MTN. 7850 16.1 14.9 108 16.3 14.7 111 DEADMAN HILL 10220 16.5 16.7 99 18.0 17.3 104 DEER PARK 9700 17.0 17.1 99 20.6 22.4 92 LAPRELE CREEK 8375 10.2 10.9 94 11.5 12.9 89 RENO HILL 8500 15.4 14.5 106 16.8 15.3 110 ROACH 9700 16.9 17.4 97 19.9 18.9 105 SAND LAKE 10050 32.5 33.0 98 31.2 24.5 127 SOUTH PASS 9040 16.2 16.8 96 16.8 18.9 89 WINDY PEAK 7900 8.1 8.1 100 10.2 10.8 94 ----- ----- Basin wide percent of average 101 103 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 13.1 10.7 122 16.6 16.1 103 DIVIDE PEAK 8860 19.7 20.1 98 22.4 21.0 107 OLD BATTLE 9920 38.0 32.7 116 41.7 35.1 119 SANDSTONE RS 8150 16.9 14.6 116 21.6 19.0 114 WHISKEY PARK 8950 41.1 30.4 135 33.7 29.1 116 ----- ----- Basin wide percent of average 119 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.4 14.8 104 15.5 13.7 113 BLIND BULL SUM 8900 28.8 28.4 101 21.8 22.7 96 EAST RIM DIVIDE 7930 11.4 13.4 85 11.7 12.3 95 ELKHART PARK G.S. 9400 14.5 13.7 106 15.2 13.6 112 GROS VENTRE SUMMIT 8750 12.6 14.4 88 12.9 13.2 98 KENDALL R.S. 7740 15.0 14.5 103 15.4 14.8 104 LOOMIS PARK 8240 20.0 17.4 115 20.0 17.8 112 NEW FORK LAKE 8340 11.0 11.3 97 10.6 11.5 92 SNIDER BASIN 8060 18.9 14.7 129 17.5 16.4 107 SPRING CREEK DIVIDE 9000 31.6 27.1 117 -M 27.0 * TRIPLE PEAK 8500 31.2 25.3 123 31.5 25.3 125 ----- ----- Basin wide percent of average 108 107 LOWER GREEN RIVER HAMS FORK 7840 16.0 11.7 137 14.2 12.5 114 HEWINTA 9500 13.2 12.1 109 15.1 14.9 101 HICKERSON PARK 9100 5.5 7.8 71 8.1 8.1 100 HOLE-IN-ROCK 9150 8.1 7.2 112 8.6 7.6 113 INDIAN CREEK 9425 32.2 28.4 113 -M 26.0 * KELLEY R.S. 8180 20.7 17.1 121 22.5 20.8 108 STEEL CREEK PARK 10100 16.1 16.1 100 17.4 16.6 105 ----- ----- Basin wide percent of average 111 107 UPPER BEAR RIVER BUG LAKE 7950 25.8 21.3 121 23.1 19.7 117 HAYDEN FORK 9100 22.3 16.6 134 25.4 21.5 118 KELLEY R.S. 8180 20.7 17.1 121 22.5 20.8 108 LILY LAKE 9050 15.2 13.6 112 16.9 17.8 95 MONTE CRISTO 8960 36.9 30.2 122 32.1 26.0 123 SALT RIVER SUMMIT 7600 17.0 14.6 116 19.6 19.2 102 TRIAL LAKE 9960 30.7 25.5 120 28.7 25.5 113 ----- ----- Basin wide percent of average 121 112 ----------------------------------------------------------------------------- -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.