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 FRIDAY: APRIL 7 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.9 17.5 119 26.4 22.2 119 COTTONWOOD CREEK 7600 30.4 24.0 127 32.4 28.6 113 GRANITE CREEK 6770 21.5 17.9 120 24.0 20.6 117 GRASSY LAKE 7265 40.4 36.5 111 43.5 37.3 117 GROS VENTRE SUMMIT 8750 12.7 14.5 88 13.5 13.5 100 LEWIS LAKE DIVIDE 7850 42.6 36.2 118 40.6 38.1 107 PHILLIPS BENCH 8200 35.6 29.8 119 35.3 30.1 117 SALT RIVER SUMMIT 7600 16.9 14.5 117 20.1 19.5 103 SNAKE RIVER STATION 6920 20.9 18.5 113 27.0 23.1 117 SPRING CREEK DIVIDE 9000 32.4 27.6 117 -M 27.5 * THUMB DIVIDE 7980 20.0 19.0 105 19.8 19.7 101 TOGWOTEE PASS 9580 25.8 25.8 100 26.9 25.7 105 TWO OCEAN PLATEAU 9240 36.3 29.3 124 29.8 28.8 103 WILLOW CREEK 8450 36.8 31.2 118 41.5 33.6 124 ----- ----- Basin wide percent of average 115 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 22.1 24.4 91 19.5 20.9 93 BLACK BEAR 8170 52.1 40.3 129 -M 41.9 * CANYON 8090 15.1 13.9 109 18.1 16.0 113 FISHER CREEK 9100 39.6 36.1 110 37.8 37.8 100 MADISON PLATEAU 7750 -M 25.8 * -M 27.8 * NORTHEAST ENTRANCE 7350 9.5 11.0 86 12.7 13.2 96 PARKER PEAK 9400 19.6 22.5 87 17.7 17.0 104 SYLVAN LAKE 8420 19.0 23.4 81 23.4 21.8 107 THUMB DIVIDE 7980 20.0 19.0 105 19.8 19.7 101 TWO OCEAN PLATEAU 9240 36.3 29.3 124 29.8 28.8 103 WHISKEY CREEK 6800 16.7 17.6 95 24.9 21.8 114 WHITE MILL 8700 -M 25.2 * -M 28.1 * WOLVERINE 7650 8.3 11.3 73 9.0 13.4 67 ----- ----- Basin wide percent of average 104 101 WIND RIVER BURROUGHS CREEK 8750 14.2 14.9 95 16.3 17.0 96 COLD SPRINGS 9630 5.6 8.2 68 8.6 11.3 76 DEER PARK 9700 17.3 17.1 101 21.0 23.1 91 HOBBS PARK 10100 11.1 15.8 70 11.9 13.7 87 LITTLE WARM 9370 9.3 12.2 76 12.2 14.2 86 SOUTH PASS 9040 16.3 17.1 95 17.1 19.4 88 ST. LAWRENCE ALT 8620 3.6 7.4 49 6.6 9.5 69 TOGWOTEE PASS 9580 25.8 25.8 100 26.9 25.7 105 TOWNSEND CREEK 8700 6.7 9.2 73 9.5 12.5 76 ----- ----- Basin wide percent of average 86 89 BIGHORN BASIN BALD MTN. 9380 16.8 20.8 81 13.8 18.3 75 BEAR TRAP MEADOW 8200 4.7 5.0 94 7.8 8.8 89 BLACKWATER 9780 22.9 25.7 89 20.8 21.5 97 BONE SPRINGS DIV 9350 14.6 17.0 86 15.1 15.4 98 EVENING STAR 9200 24.7 30.9 80 28.1 26.4 106 GRAVE SPRINGS 8550 9.7 10.0 97 11.7 10.4 112 KIRWIN 9550 10.1 11.8 86 10.9 11.9 92 MARQUETTE 8760 2.3 9.7 24 7.3 10.6 69 MIDDLE POWDER 7760 12.4 12.7 98 10.0 13.1 76 OWL CREEK 8975 2.7 5.4 50 6.1 6.4 95 POWDER RIVER PASS 9480 10.1 11.3 89 12.1 13.1 92 SHELL CREEK 9580 14.6 15.4 95 13.6 14.1 96 SYLVAN LAKE 8420 19.0 23.4 81 23.4 21.8 107 SYLVAN ROAD 7120 10.9 12.6 87 16.9 18.3 92 TIMBER CREEK 7950 2.1 5.8 36 5.0 8.0 62 YOUNTS PEAK 8350 14.4 17.6 82 17.5 16.8 104 ----- ----- Basin wide percent of average 82 94 SHOSHONE RIVER BLACKWATER 9780 22.9 25.7 89 20.8 21.5 97 EVENING STAR 9200 24.7 30.9 80 28.1 26.4 106 KIRWIN 9550 10.1 11.8 86 10.9 11.9 92 MARQUETTE 8760 2.3 9.7 24 7.3 10.6 69 SYLVAN LAKE 8420 19.0 23.4 81 23.4 21.8 107 SYLVAN ROAD 7120 10.9 12.6 87 16.9 18.3 92 YOUNTS PEAK 8350 14.4 17.6 82 17.5 16.8 104 ----- ----- Basin wide percent of average 79 98 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.7 5.0 94 7.8 8.8 89 BIG GOOSE 7990 6.9 11.4 61 9.2 9.4 98 BONE SPRINGS DIV 9350 14.6 17.0 86 15.1 15.4 98 BURGESS JUNCTION 7880 9.9 12.3 80 11.0 12.8 86 CLOUD PEAK RESERVOIR 9860 12.8 14.3 90 12.3 13.7 90 DOME LAKE 8880 10.3 13.2 78 11.7 13.9 84 GRAVE SPRINGS 8550 9.7 10.0 97 11.7 10.4 112 HANSEN SAWMILL 8360 3.9 6.4 61 7.2 8.8 82 MIDDLE POWDER 7760 12.4 12.7 98 10.0 13.1 76 POWDER RIVER PASS 9480 10.1 11.3 89 12.1 13.1 92 SUCKER CREEK 8880 10.6 12.5 85 14.1 14.4 98 TIE CREEK 6870 3.7 5.8 64 10.4 10.6 98 ----- ----- Basin wide percent of average 83 92 BELLE FOURCHE BLIND PARK 6890 6.6 8.2 80 11.4 11.7 97 COLE CANYON 5910 4.4 6.0 73 9.7 -M * NORTH RAPID CREEK 6130 6.3 8.5 74 9.4 9.2 102 ----- ----- Basin wide percent of average 76 100 UPPER N. PLATTE RIVER COLUMBINE 9160 30.9 24.9 124 34.2 26.1 131 DIVIDE PEAK 8860 19.8 20.4 97 23.1 21.5 107 ELK RIVER 8700 20.4 19.6 104 21.9 20.4 107 JOE WRIGHT 10120 22.2 22.4 99 26.2 25.9 101 NORTH FRENCH CREEK 10130 34.6 30.8 112 33.0 25.8 128 OLD BATTLE 9920 39.3 33.4 118 42.6 35.8 119 SAGE CREEK BASIN 7850 12.0 11.8 102 15.4 12.5 123 SOUTH BRUSH CREEK 8440 11.6 13.2 88 17.3 17.1 101 TOWER 10500 52.9 47.4 112 -M 39.9 * WEBBER SPRINGS 9250 29.0 26.3 110 35.3 27.7 127 WILLOW CREEK PASS 9540 11.8 12.7 93 13.9 13.5 103 ----- ----- Basin wide percent of average 108 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 26.4 25.0 106 22.4 23.1 97 CASPER MTN. 7850 15.8 15.5 102 17.2 15.4 112 DEADMAN HILL 10220 16.3 17.2 95 18.2 17.8 102 DEER PARK 9700 17.3 17.1 101 21.0 23.1 91 LAPRELE CREEK 8375 9.7 10.7 91 11.9 13.4 89 RENO HILL 8500 15.5 15.0 103 17.9 16.0 112 ROACH 9700 16.7 17.7 94 20.1 19.4 104 SAND LAKE 10050 32.6 33.7 97 31.7 25.2 126 SOUTH PASS 9040 16.3 17.1 95 17.1 19.4 88 WINDY PEAK 7900 7.8 8.1 96 10.5 11.2 94 ----- ----- Basin wide percent of average 98 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.2 10.0 112 17.0 16.4 104 DIVIDE PEAK 8860 19.8 20.4 97 23.1 21.5 107 OLD BATTLE 9920 39.3 33.4 118 42.6 35.8 119 SANDSTONE RS 8150 15.9 14.2 112 22.2 19.4 114 WHISKEY PARK 8950 41.4 30.5 136 36.7 29.8 123 ----- ----- Basin wide percent of average 118 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 16.0 15.0 107 16.1 14.0 115 BLIND BULL SUM 8900 29.4 28.6 103 22.2 23.0 97 EAST RIM DIVIDE 7930 11.7 13.6 86 12.3 12.5 98 ELKHART PARK G.S. 9400 15.4 13.8 112 16.2 13.9 117 GROS VENTRE SUMMIT 8750 12.7 14.5 88 13.5 13.5 100 KENDALL R.S. 7740 14.9 14.2 105 16.2 15.1 107 LOOMIS PARK 8240 20.6 17.3 119 20.8 18.1 115 NEW FORK LAKE 8340 11.7 11.3 104 11.2 11.8 95 SNIDER BASIN 8060 19.3 14.8 130 17.6 16.7 105 SPRING CREEK DIVIDE 9000 32.4 27.6 117 -M 27.5 * TRIPLE PEAK 8500 31.1 25.5 122 31.8 25.8 123 ----- ----- Basin wide percent of average 110 108 LOWER GREEN RIVER HAMS FORK 7840 15.4 11.1 139 14.4 12.8 112 HEWINTA 9500 12.5 12.2 102 15.6 15.3 102 HICKERSON PARK 9100 5.7 8.0 71 8.5 8.4 101 HOLE-IN-ROCK 9150 8.2 7.2 114 9.3 7.9 118 INDIAN CREEK 9425 32.9 28.8 114 -M 26.5 * KELLEY R.S. 8180 21.1 17.1 123 23.3 21.2 110 STEEL CREEK PARK 10100 17.5 16.5 106 18.0 17.1 105 ----- ----- Basin wide percent of average 112 108 UPPER BEAR RIVER BUG LAKE 7950 26.9 21.4 126 24.0 20.1 119 HAYDEN FORK 9100 23.1 16.6 139 27.0 22.0 123 KELLEY R.S. 8180 21.1 17.1 123 23.3 21.2 110 LILY LAKE 9050 15.3 13.9 110 18.1 18.3 99 MONTE CRISTO 8960 -M 30.3 * -M 26.6 * SALT RIVER SUMMIT 7600 16.9 14.5 117 20.1 19.5 103 TRIAL LAKE 9960 32.9 25.8 128 29.3 26.0 113 ----- ----- Basin wide percent of average 125 112 ----------------------------------------------------------------------------- -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.