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: MARCH 17 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.3 17.4 117 24.5 20.2 121 COTTONWOOD CREEK 7600 26.9 21.7 124 29.2 25.5 115 GRANITE CREEK 6770 20.2 18.0 112 22.2 18.8 118 GRASSY LAKE 7265 36.7 33.2 111 37.5 33.8 111 GROS VENTRE SUMMIT 8750 11.2 13.1 85 11.9 11.9 100 LEWIS LAKE DIVIDE 7850 39.6 33.2 119 37.7 34.4 110 PHILLIPS BENCH 8200 31.2 26.8 116 31.5 27.1 116 SALT RIVER SUMMIT 7600 15.2 13.5 113 17.9 17.5 102 SNAKE RIVER STATION 6920 20.4 18.4 111 25.2 21.0 120 SPRING CREEK DIVIDE 9000 28.9 24.7 117 -M 24.7 * THUMB DIVIDE 7980 17.9 17.6 102 17.9 17.6 102 TOGWOTEE PASS 9580 22.9 23.0 100 24.0 22.9 105 TWO OCEAN PLATEAU 9240 33.6 25.9 130 24.8 25.8 96 WILLOW CREEK 8450 32.6 28.3 115 36.8 29.9 123 ----- ----- Basin wide percent of average 114 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 20.5 22.1 93 18.1 18.8 96 BLACK BEAR 8170 46.5 36.8 126 -M 37.2 * CANYON 8090 13.9 12.8 109 16.4 14.3 115 FISHER CREEK 9100 37.8 32.7 116 34.9 33.8 103 MADISON PLATEAU 7750 25.6 23.5 109 30.2 24.7 122 NORTHEAST ENTRANCE 7350 9.8 10.7 92 11.8 11.8 100 PARKER PEAK 9400 17.4 20.1 87 15.7 15.1 104 SYLVAN LAKE 8420 16.8 20.9 80 20.8 19.6 106 THUMB DIVIDE 7980 17.9 17.6 102 17.9 17.6 102 TWO OCEAN PLATEAU 9240 33.6 25.9 130 24.8 25.8 96 WHISKEY CREEK 6800 15.4 16.1 96 21.7 19.4 112 WHITE MILL 8700 24.4 22.6 108 21.7 25.1 86 WOLVERINE 7650 8.8 11.3 78 8.5 12.1 70 ----- ----- Basin wide percent of average 106 102 WIND RIVER BURROUGHS CREEK 8750 12.8 13.7 93 14.9 15.1 99 COLD SPRINGS 9630 4.9 8.1 60 7.6 9.6 79 DEER PARK 9700 15.8 15.5 102 19.3 20.0 97 HOBBS PARK 10100 10.2 13.3 77 10.7 11.4 94 LITTLE WARM 9370 8.2 10.8 76 10.9 12.2 89 SOUTH PASS 9040 15.3 15.6 98 16.0 16.9 95 ST. LAWRENCE ALT 8620 3.3 6.7 49 5.9 8.0 74 TOGWOTEE PASS 9580 22.9 23.0 100 24.0 22.9 105 TOWNSEND CREEK 8700 6.0 7.7 78 8.8 10.3 85 ----- ----- Basin wide percent of average 87 93 BIGHORN BASIN BALD MTN. 9380 14.1 17.9 79 11.3 15.9 71 BEAR TRAP MEADOW 8200 5.2 4.9 106 6.9 7.4 93 BLACKWATER 9780 20.8 22.7 92 18.8 19.0 99 BONE SPRINGS DIV 9350 12.9 14.6 88 12.9 13.2 98 EVENING STAR 9200 23.5 27.6 85 26.0 23.7 110 GRAVE SPRINGS 8550 8.2 8.3 99 10.1 8.8 115 KIRWIN 9550 8.9 10.3 86 9.6 10.3 93 MARQUETTE 8760 1.8 7.8 23 6.2 8.7 71 MIDDLE POWDER 7760 10.7 10.3 104 9.0 11.0 82 OWL CREEK 8975 2.5 4.8 52 4.5 5.2 87 POWDER RIVER PASS 9480 8.8 9.8 90 10.2 11.2 91 SHELL CREEK 9580 12.6 13.2 95 11.8 12.1 98 SYLVAN LAKE 8420 16.8 20.9 80 20.8 19.6 106 SYLVAN ROAD 7120 10.3 12.3 84 15.7 16.7 94 TIMBER CREEK 7950 1.6 5.0 32 4.1 6.4 64 YOUNTS PEAK 8350 -M 15.9 * 15.6 15.0 104 ----- ----- Basin wide percent of average 83 95 SHOSHONE RIVER BLACKWATER 9780 20.8 22.7 92 18.8 19.0 99 EVENING STAR 9200 23.5 27.6 85 26.0 23.7 110 KIRWIN 9550 8.9 10.3 86 9.6 10.3 93 MARQUETTE 8760 1.8 7.8 23 6.2 8.7 71 SYLVAN LAKE 8420 16.8 20.9 80 20.8 19.6 106 SYLVAN ROAD 7120 10.3 12.3 84 15.7 16.7 94 YOUNTS PEAK 8350 -M 15.9 * 15.6 15.0 104 ----- ----- Basin wide percent of average 81 100 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.2 4.9 106 6.9 7.4 93 BIG GOOSE 7990 5.7 8.9 64 7.9 7.7 103 BONE SPRINGS DIV 9350 12.9 14.6 88 12.9 13.2 98 BURGESS JUNCTION 7880 8.6 10.2 84 9.8 10.9 90 CLOUD PEAK RESERVOIR 9860 11.3 11.6 97 10.2 11.4 89 DOME LAKE 8880 9.2 10.7 86 10.0 11.7 85 GRAVE SPRINGS 8550 8.2 8.3 99 10.1 8.8 115 HANSEN SAWMILL 8360 3.7 5.9 63 5.8 7.3 79 MIDDLE POWDER 7760 10.7 10.3 104 9.0 11.0 82 POWDER RIVER PASS 9480 8.8 9.8 90 10.2 11.2 91 SUCKER CREEK 8880 9.2 10.3 89 12.1 12.1 100 TIE CREEK 6870 4.5 5.8 78 8.9 8.9 100 ----- ----- Basin wide percent of average 88 94 BELLE FOURCHE BLIND PARK 6890 7.3 8.3 88 9.9 10.2 97 COLE CANYON 5910 4.6 5.7 81 8.4 -M * NORTH RAPID CREEK 6130 6.0 7.6 79 7.9 8.1 98 ----- ----- Basin wide percent of average 83 97 UPPER N. PLATTE RIVER COLUMBINE 9160 29.5 23.9 123 30.8 23.2 133 DIVIDE PEAK 8860 18.1 18.0 101 20.5 19.0 108 ELK RIVER 8700 19.3 17.9 108 19.8 18.0 110 JOE WRIGHT 10120 20.2 19.3 105 24.2 22.6 107 NORTH FRENCH CREEK 10130 30.8 26.0 118 29.9 22.6 132 OLD BATTLE 9920 34.6 29.6 117 38.6 31.8 121 SAGE CREEK BASIN 7850 12.8 10.5 122 13.5 11.0 123 SOUTH BRUSH CREEK 8440 11.6 11.8 98 15.5 14.9 104 TOWER 10500 48.7 41.7 117 45.9 35.4 130 WEBBER SPRINGS 9250 26.3 24.5 107 31.8 24.5 130 WILLOW CREEK PASS 9540 11.6 10.8 107 12.7 11.7 109 ----- ----- Basin wide percent of average 113 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 24.0 21.3 113 20.5 19.9 103 CASPER MTN. 7850 15.2 12.7 120 15.8 12.8 123 DEADMAN HILL 10220 14.8 14.6 101 16.2 15.2 107 DEER PARK 9700 15.8 15.5 102 19.3 20.0 97 LAPRELE CREEK 8375 9.5 10.1 94 10.3 11.3 91 RENO HILL 8500 14.5 12.3 118 15.8 13.3 119 ROACH 9700 14.7 15.5 95 15.7 16.9 93 SAND LAKE 10050 30.1 29.2 103 29.0 21.8 133 SOUTH PASS 9040 15.3 15.6 98 16.0 16.9 95 WINDY PEAK 7900 7.4 7.3 101 9.3 9.6 97 ----- ----- Basin wide percent of average 105 106 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 13.8 11.2 123 15.5 14.2 109 DIVIDE PEAK 8860 18.1 18.0 101 20.5 19.0 108 OLD BATTLE 9920 34.6 29.6 117 38.6 31.8 121 SANDSTONE RS 8150 15.2 14.3 106 20.1 17.3 116 WHISKEY PARK 8950 35.3 27.7 127 31.1 26.2 119 ----- ----- Basin wide percent of average 116 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.0 13.5 104 14.1 12.4 114 BLIND BULL SUM 8900 26.2 26.0 101 19.6 20.9 94 EAST RIM DIVIDE 7930 10.2 12.2 84 10.6 11.2 95 ELKHART PARK G.S. 9400 12.5 12.5 100 13.3 12.2 109 GROS VENTRE SUMMIT 8750 11.2 13.1 85 11.9 11.9 100 KENDALL R.S. 7740 13.7 14.0 98 14.5 13.6 107 LOOMIS PARK 8240 17.7 16.4 108 18.2 16.2 112 NEW FORK LAKE 8340 10.1 10.6 95 9.7 10.5 92 SNIDER BASIN 8060 16.7 13.7 122 15.8 15.0 105 SPRING CREEK DIVIDE 9000 28.9 24.7 117 -M 24.7 * TRIPLE PEAK 8500 27.9 23.3 120 28.6 23.0 124 ----- ----- Basin wide percent of average 105 106 LOWER GREEN RIVER HAMS FORK 7840 14.3 12.2 117 13.0 11.4 114 HEWINTA 9500 11.9 10.6 112 14.1 13.2 107 HICKERSON PARK 9100 4.5 6.6 68 7.0 7.1 99 HOLE-IN-ROCK 9150 6.6 6.5 102 7.5 6.7 112 INDIAN CREEK 9425 29.1 25.5 114 -M 23.5 * KELLEY R.S. 8180 18.9 15.8 120 20.7 19.0 109 STEEL CREEK PARK 10100 14.8 14.4 103 16.1 14.7 110 ----- ----- Basin wide percent of average 109 109 UPPER BEAR RIVER BUG LAKE 7950 22.8 19.3 118 20.0 17.9 112 HAYDEN FORK 9100 20.1 15.1 133 23.1 19.2 120 KELLEY R.S. 8180 18.9 15.8 120 20.7 19.0 109 LILY LAKE 9050 13.7 12.1 113 15.3 16.0 96 MONTE CRISTO 8960 31.1 27.9 111 28.9 23.5 123 SALT RIVER SUMMIT 7600 15.2 13.5 113 17.9 17.5 102 TRIAL LAKE 9960 27.4 23.3 118 24.8 22.9 108 ----- ----- Basin wide percent of average 117 111 ----------------------------------------------------------------------------- -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.