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 THURSDAY: APRIL 6 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.6 17.6 117 26.0 22.1 118 COTTONWOOD CREEK 7600 30.4 24.1 126 32.0 28.5 112 GRANITE CREEK 6770 21.5 18.0 119 23.8 20.5 116 GRASSY LAKE 7265 40.1 36.4 110 43.1 37.1 116 GROS VENTRE SUMMIT 8750 12.7 14.5 88 13.4 13.4 100 LEWIS LAKE DIVIDE 7850 42.5 36.1 118 40.1 37.9 106 PHILLIPS BENCH 8200 35.6 29.7 120 35.1 30.0 117 SALT RIVER SUMMIT 7600 16.6 14.5 114 19.7 19.4 102 SNAKE RIVER STATION 6920 20.9 18.6 112 26.8 23.0 117 SPRING CREEK DIVIDE 9000 32.2 27.5 117 -M 27.4 * THUMB DIVIDE 7980 20.0 19.0 105 19.6 19.6 100 TOGWOTEE PASS 9580 25.6 25.7 100 26.5 25.6 104 TWO OCEAN PLATEAU 9240 36.4 29.2 125 29.5 28.7 103 WILLOW CREEK 8450 36.9 31.1 119 41.1 33.5 123 ----- ----- Basin wide percent of average 115 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 22.1 24.3 91 19.3 20.8 93 BLACK BEAR 8170 51.3 40.2 128 -M 41.7 * CANYON 8090 15.0 13.9 108 17.8 15.9 112 FISHER CREEK 9100 39.7 36.0 110 37.5 37.6 100 MADISON PLATEAU 7750 28.9 25.7 112 34.0 27.7 123 NORTHEAST ENTRANCE 7350 9.8 11.1 88 12.7 13.1 97 PARKER PEAK 9400 19.3 22.4 86 17.4 16.9 103 SYLVAN LAKE 8420 18.7 23.3 80 23.0 21.7 106 THUMB DIVIDE 7980 20.0 19.0 105 19.6 19.6 100 TWO OCEAN PLATEAU 9240 36.4 29.2 125 29.5 28.7 103 WHISKEY CREEK 6800 16.6 17.5 95 24.5 21.7 113 WHITE MILL 8700 -M 25.1 * -M 27.9 * WOLVERINE 7650 8.6 11.4 75 8.9 13.3 67 ----- ----- Basin wide percent of average 105 103 WIND RIVER BURROUGHS CREEK 8750 14.1 14.9 95 16.2 16.9 96 COLD SPRINGS 9630 5.7 8.3 69 8.6 11.2 77 DEER PARK 9700 17.4 17.1 102 20.8 22.9 91 HOBBS PARK 10100 11.1 15.7 71 11.7 13.6 86 LITTLE WARM 9370 9.3 12.2 76 12.1 14.1 86 SOUTH PASS 9040 16.3 17.1 95 16.9 19.3 88 ST. LAWRENCE ALT 8620 3.6 7.4 49 6.5 9.4 69 TOGWOTEE PASS 9580 25.6 25.7 100 26.5 25.6 104 TOWNSEND CREEK 8700 6.5 9.2 71 9.4 12.3 76 ----- ----- Basin wide percent of average 86 89 BIGHORN BASIN BALD MTN. 9380 16.7 20.6 81 13.7 18.1 76 BEAR TRAP MEADOW 8200 4.9 5.0 98 7.8 8.7 90 BLACKWATER 9780 22.8 25.6 89 20.6 21.4 96 BONE SPRINGS DIV 9350 14.1 16.9 83 15.0 15.3 98 EVENING STAR 9200 25.1 30.8 81 27.9 26.2 106 GRAVE SPRINGS 8550 9.6 9.9 97 11.6 10.3 113 KIRWIN 9550 10.0 11.8 85 10.9 11.8 92 MARQUETTE 8760 2.4 9.6 25 7.3 10.5 70 MIDDLE POWDER 7760 12.3 12.6 98 10.0 13.0 77 OWL CREEK 8975 2.7 5.5 49 6.0 6.3 95 POWDER RIVER PASS 9480 10.0 11.3 88 12.1 13.0 93 SHELL CREEK 9580 14.6 15.3 95 13.4 14.0 96 SYLVAN LAKE 8420 18.7 23.3 80 23.0 21.7 106 SYLVAN ROAD 7120 10.9 12.6 87 16.7 18.2 92 TIMBER CREEK 7950 2.2 5.8 38 5.0 7.9 63 YOUNTS PEAK 8350 14.3 17.6 81 17.4 16.7 104 ----- ----- Basin wide percent of average 82 94 SHOSHONE RIVER BLACKWATER 9780 22.8 25.6 89 20.6 21.4 96 EVENING STAR 9200 25.1 30.8 81 27.9 26.2 106 KIRWIN 9550 10.0 11.8 85 10.9 11.8 92 MARQUETTE 8760 2.4 9.6 25 7.3 10.5 70 SYLVAN LAKE 8420 18.7 23.3 80 23.0 21.7 106 SYLVAN ROAD 7120 10.9 12.6 87 16.7 18.2 92 YOUNTS PEAK 8350 14.3 17.6 81 17.4 16.7 104 ----- ----- Basin wide percent of average 79 98 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.9 5.0 98 7.8 8.7 90 BIG GOOSE 7990 6.6 11.3 58 9.0 9.2 98 BONE SPRINGS DIV 9350 14.1 16.9 83 15.0 15.3 98 BURGESS JUNCTION 7880 9.6 12.2 79 10.8 12.7 85 CLOUD PEAK RESERVOIR 9860 12.7 14.1 90 12.3 13.6 90 DOME LAKE 8880 10.0 13.1 76 11.3 13.8 82 GRAVE SPRINGS 8550 9.6 9.9 97 11.6 10.3 113 HANSEN SAWMILL 8360 4.1 6.4 64 7.2 8.7 83 MIDDLE POWDER 7760 12.3 12.6 98 10.0 13.0 77 POWDER RIVER PASS 9480 10.0 11.3 88 12.1 13.0 93 SUCKER CREEK 8880 10.2 12.4 82 13.8 14.2 97 TIE CREEK 6870 3.6 5.8 62 10.0 10.5 95 ----- ----- Basin wide percent of average 82 92 BELLE FOURCHE BLIND PARK 6890 6.4 8.3 77 10.9 11.6 94 COLE CANYON 5910 4.1 6.1 67 9.2 -M * NORTH RAPID CREEK 6130 6.0 8.5 71 8.9 9.1 98 ----- ----- Basin wide percent of average 72 96 UPPER N. PLATTE RIVER COLUMBINE 9160 31.3 24.9 126 33.6 25.9 130 DIVIDE PEAK 8860 19.3 20.3 95 22.5 21.4 105 ELK RIVER 8700 20.4 19.6 104 21.7 20.2 107 JOE WRIGHT 10120 22.0 22.2 99 26.2 25.8 102 NORTH FRENCH CREEK 10130 34.8 30.6 114 32.8 25.6 128 OLD BATTLE 9920 38.6 33.2 116 42.7 35.6 120 SAGE CREEK BASIN 7850 11.6 11.8 98 14.9 12.4 120 SOUTH BRUSH CREEK 8440 11.6 13.2 88 17.2 17.0 101 TOWER 10500 52.6 47.1 112 47.0 39.7 118 WEBBER SPRINGS 9250 28.8 26.3 110 34.7 27.5 126 WILLOW CREEK PASS 9540 11.4 12.6 90 13.8 13.4 103 ----- ----- Basin wide percent of average 108 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 26.9 24.8 108 22.5 22.9 98 CASPER MTN. 7850 15.4 15.4 100 16.5 15.2 109 DEADMAN HILL 10220 16.0 17.1 94 18.2 17.7 103 DEER PARK 9700 17.4 17.1 102 20.8 22.9 91 LAPRELE CREEK 8375 9.5 10.7 89 11.7 13.2 89 RENO HILL 8500 14.8 14.9 99 17.1 15.9 108 ROACH 9700 16.7 17.6 95 20.0 19.3 104 SAND LAKE 10050 32.7 33.5 98 31.4 25.1 125 SOUTH PASS 9040 16.3 17.1 95 16.9 19.3 88 WINDY PEAK 7900 7.8 8.1 96 10.4 11.1 94 ----- ----- Basin wide percent of average 98 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.0 10.2 108 16.8 16.4 102 DIVIDE PEAK 8860 19.3 20.3 95 22.5 21.4 105 OLD BATTLE 9920 38.6 33.2 116 42.7 35.6 120 SANDSTONE RS 8150 15.4 14.3 108 21.7 19.3 112 WHISKEY PARK 8950 42.6 30.5 140 36.6 29.6 124 ----- ----- Basin wide percent of average 117 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.7 14.9 105 15.8 13.9 114 BLIND BULL SUM 8900 29.6 28.5 104 22.1 22.9 97 EAST RIM DIVIDE 7930 11.7 13.6 86 12.2 12.5 98 ELKHART PARK G.S. 9400 15.2 13.7 111 16.0 13.8 116 GROS VENTRE SUMMIT 8750 12.7 14.5 88 13.4 13.4 100 KENDALL R.S. 7740 14.8 14.2 104 16.0 15.0 107 LOOMIS PARK 8240 20.8 17.4 120 20.5 18.0 114 NEW FORK LAKE 8340 11.6 11.3 103 11.0 11.7 94 SNIDER BASIN 8060 19.2 14.8 130 17.6 16.7 105 SPRING CREEK DIVIDE 9000 32.2 27.5 117 -M 27.4 * TRIPLE PEAK 8500 31.2 25.4 123 31.7 25.7 123 ----- ----- Basin wide percent of average 110 108 LOWER GREEN RIVER HAMS FORK 7840 15.3 11.3 135 14.3 12.7 113 HEWINTA 9500 11.9 12.2 98 15.4 15.2 101 HICKERSON PARK 9100 5.4 7.9 68 8.5 8.4 101 HOLE-IN-ROCK 9150 7.7 7.2 107 9.0 7.9 114 INDIAN CREEK 9425 32.9 28.7 115 -M 26.3 * KELLEY R.S. 8180 20.9 17.1 122 22.8 21.1 108 STEEL CREEK PARK 10100 16.9 16.4 103 17.8 16.9 105 ----- ----- Basin wide percent of average 110 107 UPPER BEAR RIVER BUG LAKE 7950 26.4 21.4 123 23.6 20.0 118 HAYDEN FORK 9100 22.2 16.6 134 25.8 21.9 118 KELLEY R.S. 8180 20.9 17.1 122 22.8 21.1 108 LILY LAKE 9050 14.5 13.9 104 17.3 18.2 95 MONTE CRISTO 8960 37.8 30.3 125 34.1 26.5 129 SALT RIVER SUMMIT 7600 16.6 14.5 114 19.7 19.4 102 TRIAL LAKE 9960 31.9 25.7 124 29.1 25.9 112 ----- ----- Basin wide percent of average 122 113 ----------------------------------------------------------------------------- -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.