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: MARCH 29 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.8 18.0 116 24.8 21.4 116 COTTONWOOD CREEK 7600 28.9 23.7 122 30.6 27.3 112 GRANITE CREEK 6770 20.9 18.5 113 22.8 19.8 115 GRASSY LAKE 7265 37.6 35.5 106 41.2 35.9 115 GROS VENTRE SUMMIT 8750 12.1 14.1 86 12.5 12.8 98 LEWIS LAKE DIVIDE 7850 40.8 35.3 116 38.7 36.6 106 PHILLIPS BENCH 8200 33.2 28.7 116 33.3 28.9 115 SALT RIVER SUMMIT 7600 16.2 14.4 112 19.0 18.7 102 SNAKE RIVER STATION 6920 21.2 19.0 112 25.8 22.2 116 SPRING CREEK DIVIDE 9000 30.7 26.5 116 -M 26.4 * THUMB DIVIDE 7980 18.8 18.9 99 18.6 18.8 99 TOGWOTEE PASS 9580 24.2 24.8 98 25.1 24.5 102 TWO OCEAN PLATEAU 9240 34.6 27.9 124 28.1 27.6 102 WILLOW CREEK 8450 34.6 30.1 115 38.8 32.1 121 ----- ----- Basin wide percent of average 112 110 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 21.1 23.3 91 18.6 20.0 93 BLACK BEAR 8170 47.5 39.2 121 -M 40.2 * CANYON 8090 14.3 13.7 104 16.9 15.3 110 FISHER CREEK 9100 38.5 34.9 110 36.5 36.2 101 MADISON PLATEAU 7750 26.5 25.1 106 31.4 26.6 118 NORTHEAST ENTRANCE 7350 10.0 11.2 89 12.1 12.6 96 PARKER PEAK 9400 18.1 21.5 84 16.4 16.1 102 SYLVAN LAKE 8420 17.7 22.4 79 21.5 20.8 103 THUMB DIVIDE 7980 18.8 18.9 99 18.6 18.8 99 TWO OCEAN PLATEAU 9240 34.6 27.9 124 28.1 27.6 102 WHISKEY CREEK 6800 15.8 17.1 92 22.7 20.8 109 WHITE MILL 8700 25.1 24.2 104 22.9 26.9 85 WOLVERINE 7650 8.3 11.5 72 9.0 12.7 71 ----- ----- Basin wide percent of average 102 100 WIND RIVER BURROUGHS CREEK 8750 13.7 14.6 94 15.7 16.1 98 COLD SPRINGS 9630 5.8 8.8 66 8.5 10.5 81 DEER PARK 9700 16.8 16.8 100 20.1 21.7 93 HOBBS PARK 10100 10.9 14.7 74 11.5 12.6 91 LITTLE WARM 9370 9.2 11.8 78 11.6 13.2 88 SOUTH PASS 9040 16.0 16.5 97 16.5 18.3 90 ST. LAWRENCE ALT 8620 3.9 7.3 53 6.5 8.7 75 TOGWOTEE PASS 9580 24.2 24.8 98 25.1 24.5 102 TOWNSEND CREEK 8700 6.5 8.6 76 9.3 11.4 82 ----- ----- Basin wide percent of average 86 91 BIGHORN BASIN BALD MTN. 9380 14.7 19.5 75 12.0 17.2 70 BEAR TRAP MEADOW 8200 6.0 5.1 118 7.7 8.1 95 BLACKWATER 9780 21.7 24.4 89 19.6 20.4 96 BONE SPRINGS DIV 9350 13.6 16.0 85 14.3 14.4 99 EVENING STAR 9200 24.3 29.6 82 26.8 25.1 107 GRAVE SPRINGS 8550 9.4 9.2 102 11.2 9.5 118 KIRWIN 9550 9.6 11.3 85 10.5 11.1 95 MARQUETTE 8760 2.5 8.8 28 7.2 9.6 75 MIDDLE POWDER 7760 12.3 11.5 107 9.7 12.1 80 OWL CREEK 8975 3.2 5.4 59 5.9 5.8 102 POWDER RIVER PASS 9480 9.5 10.7 89 11.3 12.2 93 SHELL CREEK 9580 13.5 14.6 92 12.5 13.1 95 SYLVAN LAKE 8420 17.7 22.4 79 21.5 20.8 103 SYLVAN ROAD 7120 10.2 12.8 80 16.0 17.6 91 TIMBER CREEK 7950 2.3 5.6 41 4.8 7.2 67 YOUNTS PEAK 8350 14.0 17.0 82 17.0 16.0 106 ----- ----- Basin wide percent of average 82 94 SHOSHONE RIVER BLACKWATER 9780 21.7 24.4 89 19.6 20.4 96 EVENING STAR 9200 24.3 29.6 82 26.8 25.1 107 KIRWIN 9550 9.6 11.3 85 10.5 11.1 95 MARQUETTE 8760 2.5 8.8 28 7.2 9.6 75 SYLVAN LAKE 8420 17.7 22.4 79 21.5 20.8 103 SYLVAN ROAD 7120 10.2 12.8 80 16.0 17.6 91 YOUNTS PEAK 8350 14.0 17.0 82 17.0 16.0 106 ----- ----- Basin wide percent of average 79 98 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.0 5.1 118 7.7 8.1 95 BIG GOOSE 7990 6.5 10.3 63 8.8 8.3 106 BONE SPRINGS DIV 9350 13.6 16.0 85 14.3 14.4 99 BURGESS JUNCTION 7880 9.5 11.4 83 10.7 11.9 90 CLOUD PEAK RESERVOIR 9860 12.8 13.1 98 12.1 12.6 96 DOME LAKE 8880 10.1 12.2 83 10.8 12.9 84 GRAVE SPRINGS 8550 9.4 9.2 102 11.2 9.5 118 HANSEN SAWMILL 8360 5.1 6.4 80 7.2 8.0 90 MIDDLE POWDER 7760 12.3 11.5 107 9.7 12.1 80 POWDER RIVER PASS 9480 9.5 10.7 89 11.3 12.2 93 SUCKER CREEK 8880 10.1 11.5 88 13.2 13.3 99 TIE CREEK 6870 5.2 6.0 87 9.5 9.7 98 ----- ----- Basin wide percent of average 89 95 BELLE FOURCHE BLIND PARK 6890 7.9 8.6 92 10.5 10.9 96 COLE CANYON 5910 5.6 6.1 92 9.2 -M * NORTH RAPID CREEK 6130 7.1 8.2 87 8.8 8.5 104 ----- ----- Basin wide percent of average 90 99 UPPER N. PLATTE RIVER COLUMBINE 9160 31.0 24.8 125 32.8 24.9 132 DIVIDE PEAK 8860 19.3 19.6 98 21.5 20.4 105 ELK RIVER 8700 20.7 19.3 107 20.7 19.4 107 JOE WRIGHT 10120 21.4 21.1 101 25.4 24.4 104 NORTH FRENCH CREEK 10130 33.6 28.8 117 31.7 24.4 130 OLD BATTLE 9920 36.7 31.8 115 40.7 34.2 119 SAGE CREEK BASIN 7850 13.4 11.4 118 14.2 11.9 119 SOUTH BRUSH CREEK 8440 12.9 12.9 100 16.6 16.1 103 TOWER 10500 50.1 45.0 111 46.7 38.0 123 WEBBER SPRINGS 9250 28.3 26.0 109 33.7 26.3 128 WILLOW CREEK PASS 9540 11.9 11.8 101 13.3 12.7 105 ----- ----- Basin wide percent of average 111 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 25.4 23.4 109 22.0 21.7 101 CASPER MTN. 7850 16.5 14.2 116 16.4 14.1 116 DEADMAN HILL 10220 16.3 16.0 102 17.8 16.6 107 DEER PARK 9700 16.8 16.8 100 20.1 21.7 93 LAPRELE CREEK 8375 10.2 10.8 94 11.5 12.3 93 RENO HILL 8500 15.3 13.9 110 16.8 14.7 114 ROACH 9700 16.5 16.9 98 19.4 18.3 106 SAND LAKE 10050 32.0 32.0 100 30.6 23.7 129 SOUTH PASS 9040 16.0 16.5 97 16.5 18.3 90 WINDY PEAK 7900 7.7 7.9 97 10.0 10.4 96 ----- ----- Basin wide percent of average 103 105 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 13.4 11.0 122 16.2 15.6 104 DIVIDE PEAK 8860 19.3 19.6 98 21.5 20.4 105 OLD BATTLE 9920 36.7 31.8 115 40.7 34.2 119 SANDSTONE RS 8150 15.7 14.7 107 21.0 18.5 114 WHISKEY PARK 8950 40.1 29.9 134 33.6 28.3 119 ----- ----- Basin wide percent of average 117 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.9 14.5 103 14.9 13.3 112 BLIND BULL SUM 8900 28.1 27.8 101 21.2 22.2 95 EAST RIM DIVIDE 7930 10.8 13.1 82 11.3 12.0 94 ELKHART PARK G.S. 9400 13.8 13.4 103 14.5 13.2 110 GROS VENTRE SUMMIT 8750 12.1 14.1 86 12.5 12.8 98 KENDALL R.S. 7740 14.6 14.5 101 14.9 14.5 103 LOOMIS PARK 8240 19.1 17.3 110 19.2 17.3 111 NEW FORK LAKE 8340 10.7 11.2 96 10.2 11.2 91 SNIDER BASIN 8060 18.6 14.5 128 17.1 16.0 107 SPRING CREEK DIVIDE 9000 30.7 26.5 116 -M 26.4 * TRIPLE PEAK 8500 30.7 24.8 124 30.7 24.7 124 ----- ----- Basin wide percent of average 106 106 LOWER GREEN RIVER HAMS FORK 7840 16.0 12.0 133 14.0 12.1 116 HEWINTA 9500 12.7 11.8 108 14.7 14.4 102 HICKERSON PARK 9100 5.5 7.5 73 7.7 7.8 99 HOLE-IN-ROCK 9150 7.3 7.1 103 8.3 7.3 114 INDIAN CREEK 9425 31.3 27.7 113 -M 25.3 * KELLEY R.S. 8180 20.4 16.8 121 22.0 20.3 108 STEEL CREEK PARK 10100 15.6 15.6 100 16.9 16.0 106 ----- ----- Basin wide percent of average 110 107 UPPER BEAR RIVER BUG LAKE 7950 25.3 20.8 122 22.5 19.2 117 HAYDEN FORK 9100 21.5 16.3 132 24.5 20.8 118 KELLEY R.S. 8180 20.4 16.8 121 22.0 20.3 108 LILY LAKE 9050 15.2 13.2 115 16.3 17.3 94 MONTE CRISTO 8960 35.1 29.7 118 32.1 25.3 127 SALT RIVER SUMMIT 7600 16.2 14.4 112 19.0 18.7 102 TRIAL LAKE 9960 29.8 24.9 120 27.5 24.7 111 ----- ----- Basin wide percent of average 120 112 ----------------------------------------------------------------------------- -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.