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 SUNDAY: FEBRUARY 19 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 17.4 14.9 117 21.5 17.3 124 COTTONWOOD CREEK 7600 23.6 16.7 141 25.8 21.5 120 GRANITE CREEK 6770 17.9 14.7 122 20.0 16.1 124 GRASSY LAKE 7265 30.1 27.1 111 34.0 28.9 118 GROS VENTRE SUMMIT 8750 9.8 10.7 92 10.6 10.1 105 LEWIS LAKE DIVIDE 7850 33.1 27.3 121 32.7 29.1 112 PHILLIPS BENCH 8200 25.8 21.9 118 27.0 22.8 118 SALT RIVER SUMMIT 7600 12.9 11.2 115 15.6 14.7 106 SNAKE RIVER STATION 6920 16.9 15.2 111 21.8 18.1 120 SPRING CREEK DIVIDE 9000 26.3 20.4 129 -M 21.0 * THUMB DIVIDE 7980 14.2 14.0 101 14.9 14.8 101 TOGWOTEE PASS 9580 19.9 19.3 103 20.9 19.3 108 TWO OCEAN PLATEAU 9240 29.3 21.7 135 23.4 21.6 108 WILLOW CREEK 8450 28.2 23.5 120 32.2 25.1 128 ----- ----- Basin wide percent of average 118 116 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 17.5 18.6 94 15.3 16.0 96 BLACK BEAR 8170 39.6 30.2 131 -M 30.7 * CANYON 8090 11.9 10.4 114 14.4 12.2 118 FISHER CREEK 9100 32.2 27.5 117 29.8 28.5 105 MADISON PLATEAU 7750 21.3 19.2 111 24.8 20.5 121 NORTHEAST ENTRANCE 7350 8.1 9.1 89 10.2 10.1 101 PARKER PEAK 9400 15.0 16.9 89 13.8 12.8 108 SYLVAN LAKE 8420 13.9 17.3 80 17.8 16.8 106 THUMB DIVIDE 7980 14.2 14.0 101 14.9 14.8 101 TWO OCEAN PLATEAU 9240 29.3 21.7 135 23.4 21.6 108 WHISKEY CREEK 6800 12.6 13.2 95 18.8 16.1 117 WHITE MILL 8700 20.5 18.7 110 17.9 21.1 85 WOLVERINE 7650 8.9 10.0 89 7.7 10.5 73 ----- ----- Basin wide percent of average 108 104 WIND RIVER BURROUGHS CREEK 8750 11.4 11.7 97 13.4 12.8 105 COLD SPRINGS 9630 3.9 6.6 59 6.6 7.9 84 DEER PARK 9700 13.6 13.9 98 16.6 16.6 100 HOBBS PARK 10100 8.1 11.0 74 8.7 9.3 94 LITTLE WARM 9370 7.0 8.8 80 9.1 10.3 88 SOUTH PASS 9040 13.1 12.9 102 14.1 14.0 101 ST. LAWRENCE ALT 8620 2.2 5.4 41 4.8 6.5 74 TOGWOTEE PASS 9580 19.9 19.3 103 20.9 19.3 108 TOWNSEND CREEK 8700 4.8 6.5 74 7.8 8.3 94 ----- ----- Basin wide percent of average 87 97 BIGHORN BASIN BALD MTN. 9380 11.9 14.9 80 9.1 13.3 68 BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.1 103 BLACKWATER 9780 17.7 18.9 94 16.0 16.1 99 BONE SPRINGS DIV 9350 -M 12.1 * -M 10.9 * EVENING STAR 9200 20.1 23.1 87 22.4 20.3 110 GRAVE SPRINGS 8550 7.5 6.7 112 9.6 7.3 132 KIRWIN 9550 8.0 8.5 94 8.5 8.6 99 MARQUETTE 8760 -M 6.5 * 5.9 7.0 84 MIDDLE POWDER 7760 10.2 8.4 121 8.7 9.1 96 OWL CREEK 8975 2.2 3.8 58 4.1 4.2 98 POWDER RIVER PASS 9480 7.6 8.1 94 9.1 9.4 97 SHELL CREEK 9580 10.2 11.0 93 9.7 10.3 94 SYLVAN LAKE 8420 13.9 17.3 80 17.8 16.8 106 SYLVAN ROAD 7120 8.8 10.5 84 -M 14.8 * TIMBER CREEK 7950 1.5 4.0 38 4.2 5.1 82 YOUNTS PEAK 8350 -M 13.6 * 14.0 12.8 109 ----- ----- Basin wide percent of average 89 99 SHOSHONE RIVER BLACKWATER 9780 17.7 18.9 94 16.0 16.1 99 EVENING STAR 9200 20.1 23.1 87 22.4 20.3 110 KIRWIN 9550 8.0 8.5 94 8.5 8.6 99 MARQUETTE 8760 -M 6.5 * 5.9 7.0 84 SYLVAN LAKE 8420 13.9 17.3 80 17.8 16.8 106 SYLVAN ROAD 7120 8.8 10.5 84 -M 14.8 * YOUNTS PEAK 8350 -M 13.6 * 14.0 12.8 109 ----- ----- Basin wide percent of average 87 104 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.4 4.0 110 6.3 6.1 103 BIG GOOSE 7990 4.5 7.1 63 6.7 6.4 105 BONE SPRINGS DIV 9350 -M 12.1 * -M 10.9 * BURGESS JUNCTION 7880 7.4 8.4 88 8.7 8.9 98 CLOUD PEAK RESERVOIR 9860 9.7 9.2 105 8.9 9.2 97 DOME LAKE 8880 7.7 8.9 87 8.6 9.7 89 GRAVE SPRINGS 8550 7.5 6.7 112 9.6 7.3 132 HANSEN SAWMILL 8360 2.8 4.8 58 4.8 5.9 81 MIDDLE POWDER 7760 10.2 8.4 121 8.7 9.1 96 POWDER RIVER PASS 9480 7.6 8.1 94 9.1 9.4 97 SUCKER CREEK 8880 7.9 8.4 94 10.5 9.9 106 TIE CREEK 6870 4.0 4.6 87 8.0 7.5 107 ----- ----- Basin wide percent of average 94 101 BELLE FOURCHE BLIND PARK 6890 6.2 6.2 100 8.7 8.8 99 COLE CANYON 5910 3.8 4.7 81 7.4 -M * NORTH RAPID CREEK 6130 5.3 6.2 85 6.9 7.1 97 ----- ----- Basin wide percent of average 89 98 UPPER N. PLATTE RIVER COLUMBINE 9160 26.0 20.0 130 28.0 19.4 144 DIVIDE PEAK 8860 14.1 14.5 97 17.0 15.8 108 ELK RIVER 8700 16.2 14.7 110 17.0 14.9 114 JOE WRIGHT 10120 17.7 16.0 111 21.4 18.8 114 NORTH FRENCH CREEK 10130 27.7 21.0 132 26.5 18.8 141 OLD BATTLE 9920 29.9 23.9 125 33.4 26.3 127 SAGE CREEK BASIN 7850 10.0 8.4 119 11.9 9.2 129 SOUTH BRUSH CREEK 8440 9.9 9.0 110 13.8 12.4 111 TOWER 10500 42.7 34.9 122 31.0 29.6 105 WEBBER SPRINGS 9250 21.5 19.2 112 26.9 20.6 131 WILLOW CREEK PASS 9540 10.0 8.8 114 10.9 9.7 112 ----- ----- Basin wide percent of average 119 122 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 19.9 17.6 113 16.6 16.4 101 CASPER MTN. 7850 13.6 10.4 131 14.5 10.3 141 DEADMAN HILL 10220 12.5 12.1 103 13.9 12.3 113 DEER PARK 9700 13.6 13.9 98 16.6 16.6 100 LAPRELE CREEK 8375 8.1 8.3 98 8.9 9.3 96 RENO HILL 8500 12.9 9.6 134 14.2 10.7 133 ROACH 9700 12.0 12.9 93 14.9 13.8 108 SAND LAKE 10050 25.7 23.1 111 24.6 18.1 136 SOUTH PASS 9040 13.1 12.9 102 14.1 14.0 101 WINDY PEAK 7900 5.5 5.5 100 7.5 8.0 94 ----- ----- Basin wide percent of average 108 113 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.6 9.0 118 13.2 11.4 116 DIVIDE PEAK 8860 14.1 14.5 97 17.0 15.8 108 OLD BATTLE 9920 29.9 23.9 125 33.4 26.3 127 SANDSTONE RS 8150 12.2 11.5 106 17.7 14.6 121 WHISKEY PARK 8950 30.1 21.9 137 29.5 22.0 134 ----- ----- Basin wide percent of average 120 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 12.1 11.2 108 12.4 10.5 118 BLIND BULL SUM 8900 23.2 21.3 109 17.9 17.8 101 EAST RIM DIVIDE 7930 9.1 10.1 90 9.7 9.4 103 ELKHART PARK G.S. 9400 11.3 10.2 111 12.1 10.2 119 GROS VENTRE SUMMIT 8750 9.8 10.7 92 10.6 10.1 105 KENDALL R.S. 7740 12.0 11.4 105 12.9 11.5 112 LOOMIS PARK 8240 15.5 13.2 117 16.2 13.7 118 NEW FORK LAKE 8340 9.0 8.9 101 8.8 9.0 98 SNIDER BASIN 8060 15.0 11.5 130 14.2 12.8 111 SPRING CREEK DIVIDE 9000 26.3 20.4 129 -M 21.0 * TRIPLE PEAK 8500 25.1 19.3 130 25.6 19.1 134 ----- ----- Basin wide percent of average 114 113 LOWER GREEN RIVER HAMS FORK 7840 12.5 10.0 125 11.8 9.7 122 HEWINTA 9500 9.3 8.2 113 12.2 10.8 113 HICKERSON PARK 9100 3.2 5.3 60 5.4 5.8 93 HOLE-IN-ROCK 9150 5.4 5.1 106 6.3 5.4 117 INDIAN CREEK 9425 25.6 20.4 125 -M 19.6 * KELLEY R.S. 8180 16.8 12.7 132 18.4 16.0 115 STEEL CREEK PARK 10100 12.3 11.4 108 13.7 11.9 115 ----- ----- Basin wide percent of average 116 114 UPPER BEAR RIVER BUG LAKE 7950 20.4 15.7 130 17.8 15.0 119 HAYDEN FORK 9100 16.5 11.9 139 19.7 15.9 124 KELLEY R.S. 8180 16.8 12.7 132 18.4 16.0 115 LILY LAKE 9050 11.6 9.9 117 13.1 13.3 98 MONTE CRISTO 8960 25.8 22.3 116 24.9 19.5 128 SALT RIVER SUMMIT 7600 12.9 11.2 115 15.6 14.7 106 TRIAL LAKE 9960 23.5 18.7 126 22.9 18.8 122 ----- ----- Basin wide percent of average 125 117 ----------------------------------------------------------------------------- -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.