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: MARCH 27 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.7 17.9 116 24.8 21.2 117 COTTONWOOD CREEK 7600 28.5 23.4 122 30.5 27.0 113 GRANITE CREEK 6770 20.6 18.4 112 22.7 19.7 115 GRASSY LAKE 7265 37.6 35.1 107 40.9 35.5 115 GROS VENTRE SUMMIT 8750 11.7 14.0 84 12.1 12.6 96 LEWIS LAKE DIVIDE 7850 40.2 34.9 115 38.5 36.3 106 PHILLIPS BENCH 8200 32.5 28.4 114 32.7 28.6 114 SALT RIVER SUMMIT 7600 16.0 14.2 113 18.6 18.5 101 SNAKE RIVER STATION 6920 21.1 18.9 112 25.7 22.0 117 SPRING CREEK DIVIDE 9000 30.0 26.2 115 -M 26.1 * THUMB DIVIDE 7980 18.7 18.7 100 18.5 18.6 99 TOGWOTEE PASS 9580 24.0 24.5 98 24.9 24.2 103 TWO OCEAN PLATEAU 9240 34.2 27.6 124 28.0 27.3 103 WILLOW CREEK 8450 34.6 29.8 116 38.7 31.7 122 ----- ----- Basin wide percent of average 112 110 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 20.7 23.1 90 18.4 19.8 93 BLACK BEAR 8170 47.2 38.8 122 -M 39.7 * CANYON 8090 14.3 13.5 106 16.8 15.2 111 FISHER CREEK 9100 38.1 34.5 110 36.2 35.8 101 MADISON PLATEAU 7750 26.3 24.8 106 -M 26.3 * NORTHEAST ENTRANCE 7350 9.9 11.1 89 12.0 12.5 96 PARKER PEAK 9400 18.0 21.3 85 16.2 16.0 101 SYLVAN LAKE 8420 17.4 22.2 78 21.4 20.6 104 THUMB DIVIDE 7980 18.7 18.7 100 18.5 18.6 99 TWO OCEAN PLATEAU 9240 34.2 27.6 124 28.0 27.3 103 WHISKEY CREEK 6800 15.9 17.0 94 22.6 20.6 110 WHITE MILL 8700 25.0 23.9 105 22.6 26.6 85 WOLVERINE 7650 8.4 11.5 73 8.8 12.6 70 ----- ----- Basin wide percent of average 102 98 WIND RIVER BURROUGHS CREEK 8750 13.5 14.4 94 15.6 16.0 98 COLD SPRINGS 9630 5.6 8.7 64 8.3 10.3 81 DEER PARK 9700 16.5 16.6 99 20.0 21.4 93 HOBBS PARK 10100 10.8 14.5 74 11.1 12.4 90 LITTLE WARM 9370 8.7 11.6 75 11.4 13.1 87 SOUTH PASS 9040 15.8 16.3 97 16.4 18.0 91 ST. LAWRENCE ALT 8620 3.9 7.2 54 6.5 8.6 76 TOGWOTEE PASS 9580 24.0 24.5 98 24.9 24.2 103 TOWNSEND CREEK 8700 6.4 8.4 76 9.0 11.2 80 ----- ----- Basin wide percent of average 86 91 BIGHORN BASIN BALD MTN. 9380 14.7 19.2 77 11.8 17.0 69 BEAR TRAP MEADOW 8200 6.0 5.1 118 7.7 8.0 96 BLACKWATER 9780 21.5 24.1 89 19.3 20.1 96 BONE SPRINGS DIV 9350 13.7 15.8 87 13.6 14.2 96 EVENING STAR 9200 23.8 29.3 81 26.6 24.9 107 GRAVE SPRINGS 8550 9.4 9.0 104 11.2 9.4 119 KIRWIN 9550 9.5 11.1 86 10.2 11.0 93 MARQUETTE 8760 2.3 8.6 27 7.0 9.4 74 MIDDLE POWDER 7760 12.2 11.3 108 9.6 11.9 81 OWL CREEK 8975 3.2 5.3 60 5.6 5.7 98 POWDER RIVER PASS 9480 9.6 10.5 91 11.2 12.0 93 SHELL CREEK 9580 13.4 14.3 94 12.4 13.0 95 SYLVAN LAKE 8420 17.4 22.2 78 21.4 20.6 104 SYLVAN ROAD 7120 10.1 12.7 80 16.0 17.4 92 TIMBER CREEK 7950 2.4 5.5 44 4.9 7.1 69 YOUNTS PEAK 8350 -M 16.8 * 16.8 15.9 106 ----- ----- Basin wide percent of average 83 94 SHOSHONE RIVER BLACKWATER 9780 21.5 24.1 89 19.3 20.1 96 EVENING STAR 9200 23.8 29.3 81 26.6 24.9 107 KIRWIN 9550 9.5 11.1 86 10.2 11.0 93 MARQUETTE 8760 2.3 8.6 27 7.0 9.4 74 SYLVAN LAKE 8420 17.4 22.2 78 21.4 20.6 104 SYLVAN ROAD 7120 10.1 12.7 80 16.0 17.4 92 YOUNTS PEAK 8350 -M 16.8 * 16.8 15.9 106 ----- ----- Basin wide percent of average 78 98 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.0 5.1 118 7.7 8.0 96 BIG GOOSE 7990 6.5 10.1 64 8.6 8.2 105 BONE SPRINGS DIV 9350 13.7 15.8 87 13.6 14.2 96 BURGESS JUNCTION 7880 9.3 11.2 83 10.3 11.8 87 CLOUD PEAK RESERVOIR 9860 12.7 12.9 98 11.7 12.4 94 DOME LAKE 8880 10.1 12.0 84 10.8 12.7 85 GRAVE SPRINGS 8550 9.4 9.0 104 11.2 9.4 119 HANSEN SAWMILL 8360 5.0 6.3 79 7.1 7.9 90 MIDDLE POWDER 7760 12.2 11.3 108 9.6 11.9 81 POWDER RIVER PASS 9480 9.6 10.5 91 11.2 12.0 93 SUCKER CREEK 8880 9.9 11.3 88 12.9 13.1 98 TIE CREEK 6870 5.1 6.0 85 9.5 9.6 99 ----- ----- Basin wide percent of average 90 95 BELLE FOURCHE BLIND PARK 6890 7.9 8.6 92 10.5 10.8 97 COLE CANYON 5910 5.6 6.0 93 9.2 -M * NORTH RAPID CREEK 6130 7.0 8.1 86 8.8 8.4 105 ----- ----- Basin wide percent of average 90 101 UPPER N. PLATTE RIVER COLUMBINE 9160 30.8 24.6 125 32.2 24.6 131 DIVIDE PEAK 8860 19.2 19.3 99 21.4 20.2 106 ELK RIVER 8700 20.3 19.0 107 20.4 19.1 107 JOE WRIGHT 10120 21.4 20.8 103 25.1 24.1 104 NORTH FRENCH CREEK 10130 33.2 28.3 117 31.6 24.1 131 OLD BATTLE 9920 36.6 31.5 116 40.2 33.8 119 SAGE CREEK BASIN 7850 13.7 11.2 122 14.2 11.7 121 SOUTH BRUSH CREEK 8440 12.8 12.7 101 16.4 15.9 103 TOWER 10500 49.6 44.4 112 46.4 37.5 124 WEBBER SPRINGS 9250 27.9 25.8 108 33.6 26.0 129 WILLOW CREEK PASS 9540 11.9 11.7 102 13.1 12.5 105 ----- ----- Basin wide percent of average 111 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 25.1 23.0 109 21.3 21.4 100 CASPER MTN. 7850 16.1 14.0 115 16.4 13.9 118 DEADMAN HILL 10220 16.3 15.8 103 17.8 16.4 109 DEER PARK 9700 16.5 16.6 99 20.0 21.4 93 LAPRELE CREEK 8375 10.3 10.7 96 11.3 12.2 93 RENO HILL 8500 15.2 13.6 112 16.7 14.4 116 ROACH 9700 16.3 16.6 98 19.2 18.1 106 SAND LAKE 10050 31.6 31.5 100 30.5 23.4 130 SOUTH PASS 9040 15.8 16.3 97 16.4 18.0 91 WINDY PEAK 7900 7.8 7.8 100 10.0 10.3 97 ----- ----- Basin wide percent of average 103 106 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.3 11.1 129 15.8 15.3 103 DIVIDE PEAK 8860 19.2 19.3 99 21.4 20.2 106 OLD BATTLE 9920 36.6 31.5 116 40.2 33.8 119 SANDSTONE RS 8150 16.4 14.6 112 20.8 18.3 114 WHISKEY PARK 8950 39.5 29.5 134 32.7 27.9 117 ----- ----- Basin wide percent of average 119 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.7 14.3 103 14.7 13.1 112 BLIND BULL SUM 8900 27.7 27.5 101 21.0 22.0 95 EAST RIM DIVIDE 7930 10.5 12.9 81 10.9 11.9 92 ELKHART PARK G.S. 9400 13.3 13.2 101 14.1 13.0 108 GROS VENTRE SUMMIT 8750 11.7 14.0 84 12.1 12.6 96 KENDALL R.S. 7740 14.4 14.4 100 14.6 14.3 102 LOOMIS PARK 8240 18.7 17.1 109 18.7 17.1 109 NEW FORK LAKE 8340 10.4 11.1 94 9.9 11.1 89 SNIDER BASIN 8060 18.2 14.4 126 16.6 15.9 104 SPRING CREEK DIVIDE 9000 30.0 26.2 115 -M 26.1 * TRIPLE PEAK 8500 30.2 24.6 123 30.3 24.4 124 ----- ----- Basin wide percent of average 105 105 LOWER GREEN RIVER HAMS FORK 7840 15.4 12.1 127 13.6 12.0 113 HEWINTA 9500 12.8 11.6 110 14.7 14.2 104 HICKERSON PARK 9100 5.1 7.3 70 7.7 7.7 100 HOLE-IN-ROCK 9150 7.4 7.0 106 8.1 7.2 112 INDIAN CREEK 9425 30.4 27.3 111 -M 25.0 * KELLEY R.S. 8180 20.0 16.7 120 21.5 20.1 107 STEEL CREEK PARK 10100 15.5 15.4 101 16.8 15.8 106 ----- ----- Basin wide percent of average 109 107 UPPER BEAR RIVER BUG LAKE 7950 25.1 20.6 122 22.2 19.0 117 HAYDEN FORK 9100 21.1 16.1 131 24.2 20.5 118 KELLEY R.S. 8180 20.0 16.7 120 21.5 20.1 107 LILY LAKE 9050 15.2 13.0 117 16.0 17.1 94 MONTE CRISTO 8960 34.2 29.4 116 31.9 25.0 128 SALT RIVER SUMMIT 7600 16.0 14.2 113 18.6 18.5 101 TRIAL LAKE 9960 29.2 24.6 119 27.3 24.4 112 ----- ----- Basin wide percent of average 119 112 ----------------------------------------------------------------------------- -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.