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 SATURDAY: MARCH 4 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 18.4 16.3 113 23.0 18.9 122 COTTONWOOD CREEK 7600 25.9 19.1 136 27.5 23.5 117 GRANITE CREEK 6770 19.2 16.5 116 21.2 17.7 120 GRASSY LAKE 7265 32.0 30.2 106 36.3 31.5 115 GROS VENTRE SUMMIT 8750 10.5 11.8 89 11.2 11.0 102 LEWIS LAKE DIVIDE 7850 35.6 30.4 117 34.8 32.1 108 PHILLIPS BENCH 8200 28.0 24.5 114 28.9 25.1 115 SALT RIVER SUMMIT 7600 14.1 12.5 113 17.0 16.1 106 SNAKE RIVER STATION 6920 18.1 17.0 106 23.0 19.8 116 SPRING CREEK DIVIDE 9000 27.5 22.7 121 -M 22.9 * THUMB DIVIDE 7980 15.9 15.8 101 16.6 16.3 102 TOGWOTEE PASS 9580 21.7 21.1 103 22.8 21.1 108 TWO OCEAN PLATEAU 9240 31.3 23.8 132 24.5 23.8 103 WILLOW CREEK 8450 30.8 26.0 118 34.7 27.5 126 ----- ----- Basin wide percent of average 114 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.5 20.2 97 17.1 17.4 98 BLACK BEAR 8170 42.3 33.6 126 -M 34.0 * CANYON 8090 12.7 11.6 109 15.2 13.3 114 FISHER CREEK 9100 35.9 30.2 119 33.6 31.2 108 MADISON PLATEAU 7750 22.9 21.4 107 27.4 22.6 121 NORTHEAST ENTRANCE 7350 9.1 9.9 92 11.1 11.0 101 PARKER PEAK 9400 16.2 18.6 87 14.7 14.0 105 SYLVAN LAKE 8420 15.2 19.2 79 19.0 18.2 104 THUMB DIVIDE 7980 15.9 15.8 101 16.6 16.3 102 TWO OCEAN PLATEAU 9240 31.3 23.8 132 24.5 23.8 103 WHISKEY CREEK 6800 13.6 14.7 93 20.2 17.8 113 WHITE MILL 8700 22.9 20.7 111 20.9 23.1 90 WOLVERINE 7650 8.0 10.8 74 8.1 11.4 71 ----- ----- Basin wide percent of average 106 104 WIND RIVER BURROUGHS CREEK 8750 12.2 12.8 95 14.3 14.0 102 COLD SPRINGS 9630 4.5 7.4 61 7.1 8.6 83 DEER PARK 9700 14.6 14.6 100 17.9 18.2 98 HOBBS PARK 10100 8.8 12.2 72 9.6 10.2 94 LITTLE WARM 9370 7.7 9.7 79 10.2 11.2 91 SOUTH PASS 9040 14.1 14.3 99 14.9 15.3 97 ST. LAWRENCE ALT 8620 2.9 6.0 48 5.3 7.2 74 TOGWOTEE PASS 9580 21.7 21.1 103 22.8 21.1 108 TOWNSEND CREEK 8700 5.5 7.0 79 8.1 9.2 88 ----- ----- Basin wide percent of average 88 96 BIGHORN BASIN BALD MTN. 9380 12.8 16.3 79 10.2 14.4 71 BEAR TRAP MEADOW 8200 4.7 4.4 107 6.4 6.6 97 BLACKWATER 9780 19.3 20.8 93 17.5 17.5 100 BONE SPRINGS DIV 9350 11.3 13.5 84 11.7 11.9 98 EVENING STAR 9200 22.1 25.5 87 24.5 22.2 110 GRAVE SPRINGS 8550 7.9 7.5 105 9.7 8.0 121 KIRWIN 9550 8.5 9.3 91 9.3 9.4 99 MARQUETTE 8760 1.9 7.0 27 6.2 7.7 81 MIDDLE POWDER 7760 10.3 9.2 112 8.9 9.9 90 OWL CREEK 8975 2.5 4.2 60 4.7 4.5 104 POWDER RIVER PASS 9480 8.2 8.9 92 9.9 10.2 97 SHELL CREEK 9580 11.8 12.1 98 10.8 11.1 97 SYLVAN LAKE 8420 15.2 19.2 79 19.0 18.2 104 SYLVAN ROAD 7120 9.0 11.6 78 14.4 15.8 91 TIMBER CREEK 7950 1.7 4.4 39 4.0 5.6 71 YOUNTS PEAK 8350 -M 14.8 * 15.5 13.9 112 ----- ----- Basin wide percent of average 85 98 SHOSHONE RIVER BLACKWATER 9780 19.3 20.8 93 17.5 17.5 100 EVENING STAR 9200 22.1 25.5 87 24.5 22.2 110 KIRWIN 9550 8.5 9.3 91 9.3 9.4 99 MARQUETTE 8760 1.9 7.0 27 6.2 7.7 81 SYLVAN LAKE 8420 15.2 19.2 79 19.0 18.2 104 SYLVAN ROAD 7120 9.0 11.6 78 14.4 15.8 91 YOUNTS PEAK 8350 -M 14.8 * 15.5 13.9 112 ----- ----- Basin wide percent of average 81 102 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.7 4.4 107 6.4 6.6 97 BIG GOOSE 7990 5.3 7.9 67 7.4 7.0 106 BONE SPRINGS DIV 9350 11.3 13.5 84 11.7 11.9 98 BURGESS JUNCTION 7880 8.2 9.2 89 9.6 9.8 98 CLOUD PEAK RESERVOIR 9860 10.7 10.3 104 10.1 10.1 100 DOME LAKE 8880 8.7 9.7 90 9.4 10.5 90 GRAVE SPRINGS 8550 7.9 7.5 105 9.7 8.0 121 HANSEN SAWMILL 8360 3.4 5.3 64 5.4 6.5 83 MIDDLE POWDER 7760 10.3 9.2 112 8.9 9.9 90 POWDER RIVER PASS 9480 8.2 8.9 92 9.9 10.2 97 SUCKER CREEK 8880 8.6 9.3 92 11.4 10.8 106 TIE CREEK 6870 4.4 5.1 86 8.5 8.1 105 ----- ----- Basin wide percent of average 91 99 BELLE FOURCHE BLIND PARK 6890 6.7 7.4 91 9.3 9.5 98 COLE CANYON 5910 4.6 5.2 88 7.7 -M * NORTH RAPID CREEK 6130 5.4 7.0 77 7.3 7.6 96 ----- ----- Basin wide percent of average 85 97 UPPER N. PLATTE RIVER COLUMBINE 9160 27.7 22.3 124 29.7 21.3 139 DIVIDE PEAK 8860 15.0 16.1 93 17.9 17.4 103 ELK RIVER 8700 17.9 16.4 109 18.0 16.4 110 JOE WRIGHT 10120 18.5 17.7 105 22.3 20.7 108 NORTH FRENCH CREEK 10130 28.9 23.3 124 28.1 20.6 136 OLD BATTLE 9920 31.3 26.9 116 35.8 29.1 123 SAGE CREEK BASIN 7850 10.7 9.3 115 12.5 10.1 124 SOUTH BRUSH CREEK 8440 10.4 10.3 101 14.4 13.6 106 TOWER 10500 45.4 38.4 118 31.2 32.5 96 WEBBER SPRINGS 9250 22.8 21.9 104 28.5 22.6 126 WILLOW CREEK PASS 9540 10.7 9.8 109 11.4 10.6 108 ----- ----- Basin wide percent of average 113 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 21.1 19.4 109 18.0 17.9 101 CASPER MTN. 7850 13.9 11.6 120 14.9 11.4 131 DEADMAN HILL 10220 13.4 13.3 101 14.8 13.7 108 DEER PARK 9700 14.6 14.6 100 17.9 18.2 98 LAPRELE CREEK 8375 8.4 9.1 92 9.4 10.3 91 RENO HILL 8500 13.1 10.7 122 14.4 11.8 122 ROACH 9700 12.5 14.2 88 15.7 15.3 103 SAND LAKE 10050 27.3 25.9 105 26.2 19.8 132 SOUTH PASS 9040 14.1 14.3 99 14.9 15.3 97 WINDY PEAK 7900 5.7 6.3 90 7.7 8.7 89 ----- ----- Basin wide percent of average 103 108 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.7 10.0 117 13.9 12.6 110 DIVIDE PEAK 8860 15.0 16.1 93 17.9 17.4 103 OLD BATTLE 9920 31.3 26.9 116 35.8 29.1 123 SANDSTONE RS 8150 12.5 12.9 97 18.4 16.0 115 WHISKEY PARK 8950 32.2 24.6 131 30.4 23.9 127 ----- ----- Basin wide percent of average 113 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.1 12.4 106 13.4 11.5 117 BLIND BULL SUM 8900 24.7 23.7 104 18.8 19.4 97 EAST RIM DIVIDE 7930 9.8 11.2 88 10.3 10.4 99 ELKHART PARK G.S. 9400 12.2 11.4 107 12.9 11.1 116 GROS VENTRE SUMMIT 8750 10.5 11.8 89 11.2 11.0 102 KENDALL R.S. 7740 13.5 12.7 106 14.0 12.7 110 LOOMIS PARK 8240 17.1 14.9 115 17.6 15.1 117 NEW FORK LAKE 8340 9.9 9.8 101 9.7 9.8 99 SNIDER BASIN 8060 16.3 12.7 128 15.2 14.0 109 SPRING CREEK DIVIDE 9000 27.5 22.7 121 -M 22.9 * TRIPLE PEAK 8500 26.5 21.4 124 27.3 21.1 129 ----- ----- Basin wide percent of average 110 111 LOWER GREEN RIVER HAMS FORK 7840 13.8 11.3 122 12.4 10.6 117 HEWINTA 9500 10.4 9.4 111 12.8 11.9 108 HICKERSON PARK 9100 4.0 6.0 67 5.7 6.4 89 HOLE-IN-ROCK 9150 6.0 5.9 102 6.7 6.0 112 INDIAN CREEK 9425 27.0 22.9 118 -M 21.5 * KELLEY R.S. 8180 17.9 14.3 125 19.6 17.5 112 STEEL CREEK PARK 10100 13.2 13.0 102 14.5 13.2 110 ----- ----- Basin wide percent of average 111 109 UPPER BEAR RIVER BUG LAKE 7950 21.4 17.5 122 18.9 16.5 115 HAYDEN FORK 9100 17.8 13.6 131 20.9 17.5 119 KELLEY R.S. 8180 17.9 14.3 125 19.6 17.5 112 LILY LAKE 9050 12.3 11.0 112 13.9 14.6 95 MONTE CRISTO 8960 27.4 25.3 108 27.0 21.5 126 SALT RIVER SUMMIT 7600 14.1 12.5 113 17.0 16.1 106 TRIAL LAKE 9960 24.9 21.1 118 24.0 21.0 114 ----- ----- Basin wide percent of average 118 113 ----------------------------------------------------------------------------- -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.