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: MARCH 9 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 19.5 16.7 117 23.5 19.4 121 COTTONWOOD CREEK 7600 26.2 20.2 130 28.1 24.2 116 GRANITE CREEK 6770 19.5 17.1 114 21.6 18.1 119 GRASSY LAKE 7265 34.2 31.4 109 37.5 32.4 116 GROS VENTRE SUMMIT 8750 10.9 12.3 89 11.6 11.4 102 LEWIS LAKE DIVIDE 7850 37.5 31.5 119 36.0 33.0 109 PHILLIPS BENCH 8200 29.0 25.4 114 29.7 25.8 115 SALT RIVER SUMMIT 7600 14.7 12.9 114 17.2 16.6 104 SNAKE RIVER STATION 6920 19.4 17.6 110 24.0 20.3 118 SPRING CREEK DIVIDE 9000 28.1 23.5 120 -M 23.6 * THUMB DIVIDE 7980 16.8 16.5 102 17.1 16.8 102 TOGWOTEE PASS 9580 22.3 21.8 102 23.3 21.8 107 TWO OCEAN PLATEAU 9240 32.4 24.6 132 24.8 24.6 101 WILLOW CREEK 8450 31.7 26.9 118 35.5 28.4 125 ----- ----- Basin wide percent of average 115 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.8 21.0 94 17.3 17.9 97 BLACK BEAR 8170 44.8 34.9 128 -M 35.3 * CANYON 8090 13.2 12.1 109 15.6 13.7 114 FISHER CREEK 9100 37.1 31.1 119 34.1 32.2 106 MADISON PLATEAU 7750 24.4 22.2 110 28.7 23.4 123 NORTHEAST ENTRANCE 7350 9.2 10.2 90 11.3 11.3 100 PARKER PEAK 9400 16.5 19.2 86 14.9 14.4 103 SYLVAN LAKE 8420 16.0 19.8 81 19.8 18.7 106 THUMB DIVIDE 7980 16.8 16.5 102 17.1 16.8 102 TWO OCEAN PLATEAU 9240 32.4 24.6 132 24.8 24.6 101 WHISKEY CREEK 6800 14.6 15.3 95 21.1 18.4 115 WHITE MILL 8700 23.5 21.4 110 21.2 23.9 89 WOLVERINE 7650 8.2 11.0 75 8.1 11.6 70 ----- ----- Basin wide percent of average 107 103 WIND RIVER BURROUGHS CREEK 8750 12.5 13.1 95 14.6 14.4 101 COLD SPRINGS 9630 4.6 7.7 60 7.3 9.0 81 DEER PARK 9700 15.4 14.9 103 18.8 18.9 99 HOBBS PARK 10100 9.6 12.6 76 10.0 10.7 93 LITTLE WARM 9370 8.1 10.1 80 10.8 11.6 93 SOUTH PASS 9040 14.8 14.8 100 15.6 15.9 98 ST. LAWRENCE ALT 8620 3.0 6.3 48 5.6 7.5 75 TOGWOTEE PASS 9580 22.3 21.8 102 23.3 21.8 107 TOWNSEND CREEK 8700 5.5 7.3 75 8.4 9.6 88 ----- ----- Basin wide percent of average 88 96 BIGHORN BASIN BALD MTN. 9380 13.3 16.9 79 10.5 15.0 70 BEAR TRAP MEADOW 8200 4.6 4.6 100 6.4 6.9 93 BLACKWATER 9780 19.9 21.5 93 18.0 18.1 99 BONE SPRINGS DIV 9350 11.8 13.9 85 11.8 12.4 95 EVENING STAR 9200 22.8 26.3 87 24.8 22.8 109 GRAVE SPRINGS 8550 7.8 7.8 100 9.7 8.3 117 KIRWIN 9550 8.6 9.7 89 9.3 9.7 96 MARQUETTE 8760 1.8 7.3 25 6.4 8.1 79 MIDDLE POWDER 7760 10.3 9.6 107 8.8 10.3 85 OWL CREEK 8975 2.3 4.4 52 4.5 4.8 94 POWDER RIVER PASS 9480 8.3 9.3 89 9.9 10.6 93 SHELL CREEK 9580 11.8 12.5 94 11.0 11.5 96 SYLVAN LAKE 8420 16.0 19.8 81 19.8 18.7 106 SYLVAN ROAD 7120 9.4 11.9 79 14.9 16.2 92 TIMBER CREEK 7950 1.6 4.6 35 4.0 5.9 68 YOUNTS PEAK 8350 13.0 15.2 86 15.5 14.3 108 ----- ----- Basin wide percent of average 84 96 SHOSHONE RIVER BLACKWATER 9780 19.9 21.5 93 18.0 18.1 99 EVENING STAR 9200 22.8 26.3 87 24.8 22.8 109 KIRWIN 9550 8.6 9.7 89 9.3 9.7 96 MARQUETTE 8760 1.8 7.3 25 6.4 8.1 79 SYLVAN LAKE 8420 16.0 19.8 81 19.8 18.7 106 SYLVAN ROAD 7120 9.4 11.9 79 14.9 16.2 92 YOUNTS PEAK 8350 13.0 15.2 86 15.5 14.3 108 ----- ----- Basin wide percent of average 82 101 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.6 4.6 100 6.4 6.9 93 BIG GOOSE 7990 5.2 8.3 63 7.4 7.2 103 BONE SPRINGS DIV 9350 11.8 13.9 85 11.8 12.4 95 BURGESS JUNCTION 7880 8.2 9.6 85 9.4 10.2 92 CLOUD PEAK RESERVOIR 9860 10.8 10.8 100 10.1 10.6 95 DOME LAKE 8880 8.8 10.1 87 9.5 11.0 86 GRAVE SPRINGS 8550 7.8 7.8 100 9.7 8.3 117 HANSEN SAWMILL 8360 3.3 5.5 60 5.4 6.8 79 MIDDLE POWDER 7760 10.3 9.6 107 8.8 10.3 85 POWDER RIVER PASS 9480 8.3 9.3 89 9.9 10.6 93 SUCKER CREEK 8880 8.8 9.7 91 11.3 11.3 100 TIE CREEK 6870 4.4 5.4 81 8.5 8.4 101 ----- ----- Basin wide percent of average 88 95 BELLE FOURCHE BLIND PARK 6890 6.6 7.8 85 9.2 9.8 94 COLE CANYON 5910 4.4 5.4 81 7.7 -M * NORTH RAPID CREEK 6130 5.7 7.2 79 7.1 7.8 91 ----- ----- Basin wide percent of average 82 93 UPPER N. PLATTE RIVER COLUMBINE 9160 28.1 23.0 122 29.8 22.0 135 DIVIDE PEAK 8860 16.8 16.8 100 19.4 18.0 108 ELK RIVER 8700 18.2 17.0 107 18.5 17.0 109 JOE WRIGHT 10120 19.0 18.3 104 22.7 21.4 106 NORTH FRENCH CREEK 10130 29.8 24.3 123 28.9 21.4 135 OLD BATTLE 9920 32.6 28.0 116 36.3 30.1 121 SAGE CREEK BASIN 7850 11.9 9.7 123 12.8 10.5 122 SOUTH BRUSH CREEK 8440 11.1 10.9 102 14.7 14.1 104 TOWER 10500 46.4 39.7 117 43.7 33.6 130 WEBBER SPRINGS 9250 24.7 23.0 107 30.1 23.3 129 WILLOW CREEK PASS 9540 11.0 10.2 108 11.7 11.0 106 ----- ----- Basin wide percent of average 113 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 22.5 20.1 112 19.5 18.7 104 CASPER MTN. 7850 14.6 12.0 122 15.3 12.0 128 DEADMAN HILL 10220 13.8 13.8 100 15.1 14.3 106 DEER PARK 9700 15.4 14.9 103 18.8 18.9 99 LAPRELE CREEK 8375 8.5 9.5 89 9.4 10.7 88 RENO HILL 8500 13.5 11.3 119 14.8 12.4 119 ROACH 9700 13.7 14.7 93 15.5 15.9 97 SAND LAKE 10050 28.8 27.2 106 27.6 20.6 134 SOUTH PASS 9040 14.8 14.8 100 15.6 15.9 98 WINDY PEAK 7900 6.5 6.7 97 8.5 9.0 94 ----- ----- Basin wide percent of average 105 108 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.2 10.6 115 14.2 13.2 108 DIVIDE PEAK 8860 16.8 16.8 100 19.4 18.0 108 OLD BATTLE 9920 32.6 28.0 116 36.3 30.1 121 SANDSTONE RS 8150 13.6 13.5 101 19.0 16.5 115 WHISKEY PARK 8950 33.4 25.8 129 30.8 24.8 124 ----- ----- Basin wide percent of average 115 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.4 12.8 105 13.7 11.9 115 BLIND BULL SUM 8900 25.5 24.6 104 19.1 20.0 96 EAST RIM DIVIDE 7930 9.9 11.6 85 10.4 10.7 97 ELKHART PARK G.S. 9400 12.2 11.8 103 12.9 11.5 112 GROS VENTRE SUMMIT 8750 10.9 12.3 89 11.6 11.4 102 KENDALL R.S. 7740 13.4 13.3 101 14.1 13.1 108 LOOMIS PARK 8240 17.4 15.5 112 17.9 15.5 115 NEW FORK LAKE 8340 9.9 10.1 98 9.5 10.1 94 SNIDER BASIN 8060 16.4 13.1 125 15.4 14.4 107 SPRING CREEK DIVIDE 9000 28.1 23.5 120 -M 23.6 * TRIPLE PEAK 8500 27.1 22.2 122 27.7 21.8 127 ----- ----- Basin wide percent of average 108 108 LOWER GREEN RIVER HAMS FORK 7840 13.9 11.7 119 12.6 10.9 116 HEWINTA 9500 10.8 9.8 110 13.3 12.4 107 HICKERSON PARK 9100 4.1 6.2 66 6.5 6.7 97 HOLE-IN-ROCK 9150 6.2 6.1 102 7.1 6.2 115 INDIAN CREEK 9425 28.1 23.9 118 -M 22.3 * KELLEY R.S. 8180 18.5 14.9 124 20.2 18.1 112 STEEL CREEK PARK 10100 13.8 13.6 101 15.0 13.8 109 ----- ----- Basin wide percent of average 111 110 UPPER BEAR RIVER BUG LAKE 7950 21.8 18.2 120 19.3 17.1 113 HAYDEN FORK 9100 18.7 14.2 132 21.7 18.2 119 KELLEY R.S. 8180 18.5 14.9 124 20.2 18.1 112 LILY LAKE 9050 13.0 11.4 114 14.4 15.2 95 MONTE CRISTO 8960 29.7 26.4 112 28.6 22.3 128 SALT RIVER SUMMIT 7600 14.7 12.9 114 17.2 16.6 104 TRIAL LAKE 9960 26.2 22.0 119 24.5 21.7 113 ----- ----- Basin wide percent of average 119 113 ----------------------------------------------------------------------------- -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.