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 1 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 18.1 16.0 113 22.8 18.6 123 COTTONWOOD CREEK 7600 25.9 18.5 140 27.0 23.0 117 GRANITE CREEK 6770 19.1 16.1 119 21.1 17.4 121 GRASSY LAKE 7265 31.9 29.5 108 36.0 31.0 116 GROS VENTRE SUMMIT 8750 10.5 11.5 91 11.1 10.8 103 LEWIS LAKE DIVIDE 7850 35.4 29.7 119 34.4 31.5 109 PHILLIPS BENCH 8200 27.8 23.9 116 28.7 24.6 117 SALT RIVER SUMMIT 7600 13.6 12.2 111 16.9 15.8 107 SNAKE RIVER STATION 6920 17.7 16.6 107 22.9 19.5 117 SPRING CREEK DIVIDE 9000 27.4 22.2 123 -M 22.5 * THUMB DIVIDE 7980 15.8 15.4 103 16.4 16.0 102 TOGWOTEE PASS 9580 21.6 20.7 104 22.6 20.7 109 TWO OCEAN PLATEAU 9240 31.1 23.3 133 24.4 23.4 104 WILLOW CREEK 8450 30.6 25.4 120 33.9 27.0 126 ----- ----- Basin wide percent of average 116 114 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.4 19.7 98 17.0 17.1 99 BLACK BEAR 8170 42.4 32.9 129 -M 33.3 * CANYON 8090 12.5 11.3 111 15.1 13.0 116 FISHER CREEK 9100 35.7 29.6 121 33.2 30.6 108 MADISON PLATEAU 7750 22.7 20.9 109 26.9 22.1 122 NORTHEAST ENTRANCE 7350 9.0 9.7 93 11.0 10.8 102 PARKER PEAK 9400 16.2 18.2 89 14.7 13.7 107 SYLVAN LAKE 8420 15.1 18.8 80 18.9 17.9 106 THUMB DIVIDE 7980 15.8 15.4 103 16.4 16.0 102 TWO OCEAN PLATEAU 9240 31.1 23.3 133 24.4 23.4 104 WHISKEY CREEK 6800 13.6 14.4 94 19.9 17.4 114 WHITE MILL 8700 22.8 20.3 112 20.7 22.7 91 WOLVERINE 7650 8.1 10.6 76 8.2 11.2 73 ----- ----- Basin wide percent of average 108 105 WIND RIVER BURROUGHS CREEK 8750 12.1 12.6 96 14.3 13.7 104 COLD SPRINGS 9630 4.4 7.2 61 7.0 8.4 83 DEER PARK 9700 14.5 14.4 101 17.7 17.8 99 HOBBS PARK 10100 8.8 11.9 74 9.4 9.9 95 LITTLE WARM 9370 7.5 9.5 79 10.0 10.9 92 SOUTH PASS 9040 14.0 14.0 100 14.8 15.0 99 ST. LAWRENCE ALT 8620 2.8 5.9 47 5.3 7.0 76 TOGWOTEE PASS 9580 21.6 20.7 104 22.6 20.7 109 TOWNSEND CREEK 8700 5.4 6.9 78 8.0 8.9 90 ----- ----- Basin wide percent of average 88 97 BIGHORN BASIN BALD MTN. 9380 12.8 16.0 80 10.2 14.1 72 BEAR TRAP MEADOW 8200 4.8 4.3 112 6.4 6.4 100 BLACKWATER 9780 19.2 20.4 94 17.3 17.2 101 BONE SPRINGS DIV 9350 11.4 13.2 86 11.7 11.6 101 EVENING STAR 9200 21.9 25.0 88 24.3 21.8 111 GRAVE SPRINGS 8550 7.9 7.3 108 9.6 7.8 123 KIRWIN 9550 8.4 9.1 92 9.3 9.2 101 MARQUETTE 8760 1.8 6.9 26 6.3 7.5 84 MIDDLE POWDER 7760 10.4 9.0 116 8.9 9.6 93 OWL CREEK 8975 2.5 4.1 61 4.7 4.4 107 POWDER RIVER PASS 9480 8.2 8.7 94 9.9 10.0 99 SHELL CREEK 9580 11.8 11.8 100 10.8 10.8 100 SYLVAN LAKE 8420 15.1 18.8 80 18.9 17.9 106 SYLVAN ROAD 7120 9.2 11.4 81 14.4 15.6 92 TIMBER CREEK 7950 1.7 4.2 40 3.9 5.4 72 YOUNTS PEAK 8350 -M 14.6 * 15.3 13.6 112 ----- ----- Basin wide percent of average 86 99 SHOSHONE RIVER BLACKWATER 9780 19.2 20.4 94 17.3 17.2 101 EVENING STAR 9200 21.9 25.0 88 24.3 21.8 111 KIRWIN 9550 8.4 9.1 92 9.3 9.2 101 MARQUETTE 8760 1.8 6.9 26 6.3 7.5 84 SYLVAN LAKE 8420 15.1 18.8 80 18.9 17.9 106 SYLVAN ROAD 7120 9.2 11.4 81 14.4 15.6 92 YOUNTS PEAK 8350 -M 14.6 * 15.3 13.6 112 ----- ----- Basin wide percent of average 83 103 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.8 4.3 112 6.4 6.4 100 BIG GOOSE 7990 5.3 7.7 69 7.4 6.8 109 BONE SPRINGS DIV 9350 11.4 13.2 86 11.7 11.6 101 BURGESS JUNCTION 7880 8.0 9.0 89 9.4 9.5 99 CLOUD PEAK RESERVOIR 9860 10.8 10.0 108 10.0 9.8 102 DOME LAKE 8880 8.7 9.5 92 9.3 10.2 91 GRAVE SPRINGS 8550 7.9 7.3 108 9.6 7.8 123 HANSEN SAWMILL 8360 3.4 5.2 65 5.2 6.3 83 MIDDLE POWDER 7760 10.4 9.0 116 8.9 9.6 93 POWDER RIVER PASS 9480 8.2 8.7 94 9.9 10.0 99 SUCKER CREEK 8880 8.5 9.1 93 11.3 10.5 108 TIE CREEK 6870 4.5 4.9 92 8.5 7.9 108 ----- ----- Basin wide percent of average 94 101 BELLE FOURCHE BLIND PARK 6890 6.4 7.1 90 9.2 9.3 99 COLE CANYON 5910 4.7 5.1 92 7.8 -M * NORTH RAPID CREEK 6130 5.6 6.8 82 7.4 7.5 99 ----- ----- Basin wide percent of average 88 99 UPPER N. PLATTE RIVER COLUMBINE 9160 27.3 21.9 125 29.4 20.9 141 DIVIDE PEAK 8860 15.0 15.6 96 17.8 17.0 105 ELK RIVER 8700 17.8 16.1 111 17.7 16.1 110 JOE WRIGHT 10120 17.9 17.3 103 22.1 20.2 109 NORTH FRENCH CREEK 10130 28.5 22.7 126 27.9 20.2 138 OLD BATTLE 9920 31.1 26.3 118 35.1 28.5 123 SAGE CREEK BASIN 7850 10.5 9.0 117 12.5 9.9 126 SOUTH BRUSH CREEK 8440 9.9 10.0 99 14.4 13.3 108 TOWER 10500 44.7 37.6 119 -M 31.9 * WEBBER SPRINGS 9250 22.4 21.3 105 28.4 22.1 129 WILLOW CREEK PASS 9540 10.8 9.6 113 11.5 10.4 111 ----- ----- Basin wide percent of average 114 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 21.0 19.0 111 17.8 17.5 102 CASPER MTN. 7850 13.7 11.3 121 14.9 11.1 134 DEADMAN HILL 10220 13.3 13.0 102 14.5 13.3 109 DEER PARK 9700 14.5 14.4 101 17.7 17.8 99 LAPRELE CREEK 8375 8.5 8.9 96 9.4 10.0 94 RENO HILL 8500 13.2 10.4 127 14.6 11.5 127 ROACH 9700 12.4 13.9 89 15.5 14.9 104 SAND LAKE 10050 27.1 25.2 108 26.1 19.3 135 SOUTH PASS 9040 14.0 14.0 100 14.8 15.0 99 WINDY PEAK 7900 5.8 6.0 97 7.8 8.5 92 ----- ----- Basin wide percent of average 105 110 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.8 9.7 122 13.8 12.3 112 DIVIDE PEAK 8860 15.0 15.6 96 17.8 17.0 105 OLD BATTLE 9920 31.1 26.3 118 35.1 28.5 123 SANDSTONE RS 8150 12.6 12.5 101 18.4 15.7 117 WHISKEY PARK 8950 31.9 23.8 134 30.0 23.4 128 ----- ----- Basin wide percent of average 116 119 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.1 12.1 108 13.3 11.3 118 BLIND BULL SUM 8900 24.4 23.1 106 18.7 19.1 98 EAST RIM DIVIDE 7930 9.7 11.0 88 10.2 10.2 100 ELKHART PARK G.S. 9400 12.1 11.1 109 12.8 10.9 117 GROS VENTRE SUMMIT 8750 10.5 11.5 91 11.1 10.8 103 KENDALL R.S. 7740 13.4 12.4 108 13.9 12.5 111 LOOMIS PARK 8240 16.7 14.5 115 17.5 14.8 118 NEW FORK LAKE 8340 9.9 9.6 103 9.5 9.6 99 SNIDER BASIN 8060 16.0 12.4 129 15.0 13.7 109 SPRING CREEK DIVIDE 9000 27.4 22.2 123 -M 22.5 * TRIPLE PEAK 8500 26.4 20.9 126 27.2 20.7 131 ----- ----- Basin wide percent of average 112 112 LOWER GREEN RIVER HAMS FORK 7840 13.3 11.0 121 12.3 10.4 118 HEWINTA 9500 10.3 9.1 113 12.5 11.6 108 HICKERSON PARK 9100 3.5 5.8 60 5.7 6.2 92 HOLE-IN-ROCK 9150 5.9 5.7 104 6.5 5.8 112 INDIAN CREEK 9425 26.8 22.3 120 -M 21.1 * KELLEY R.S. 8180 17.6 14.0 126 19.5 17.2 113 STEEL CREEK PARK 10100 13.2 12.7 104 14.3 12.9 111 ----- ----- Basin wide percent of average 112 110 UPPER BEAR RIVER BUG LAKE 7950 21.5 17.1 126 18.7 16.2 115 HAYDEN FORK 9100 17.6 13.2 133 20.7 17.1 121 KELLEY R.S. 8180 17.6 14.0 126 19.5 17.2 113 LILY LAKE 9050 12.1 10.8 112 13.8 14.3 97 MONTE CRISTO 8960 27.3 24.7 111 26.1 21.1 124 SALT RIVER SUMMIT 7600 13.6 12.2 111 16.9 15.8 107 TRIAL LAKE 9960 24.7 20.6 120 23.4 20.5 114 ----- ----- Basin wide percent of average 119 114 ----------------------------------------------------------------------------- -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.