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: FEBRUARY 22 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.5 15.2 95 21.2 17.6 120 COTTONWOOD CREEK 7670 18.5 17.1 108 20.2 21.7 93 GRAND TARGHEE 9260 37.7 -M * 25.7 -M * GRANITE CREEK 6770 13.8 15.1 91 19.2 16.4 117 GRASSY LAKE 7265 24.7 27.8 89 32.5 29.4 111 GROS VENTRE SUMMIT 8750 10.9 10.8 101 12.1 10.1 120 GUNSIGHT PASS 9820 10.2 -M * 11.7 -M * LEWIS LAKE DIVIDE 7850 25.1 27.9 90 29.8 29.7 100 PHILLIPS BENCH 8200 24.2 22.4 108 27.4 23.2 118 SALT RIVER SUMMIT 7760 10.6 11.4 93 12.6 14.9 85 SNAKE RIVER STATION 6920 13.4 15.5 86 21.7 18.4 118 SPRING CREEK DIVIDE 9000 17.9 20.8 86 18.3 21.3 86 THUMB DIVIDE 7980 13.0 14.3 91 15.6 15.1 103 TOGWOTEE PASS 9580 21.5 19.7 109 23.6 19.6 120 TWO OCEAN PLATEAU 9240 28.4 22.2 128 23.3 22.0 106 WILLOW CREEK 8380 24.0 24.0 100 29.6 25.5 116 ----- ----- Basin wide percent of average 99 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 20.7 19.0 109 19.5 16.3 120 BLACK BEAR 8170 37.1 31.2 119 33.5 31.2 107 CANYON 7870 13.8 10.9 127 17.2 12.4 139 FISHER CREEK 9100 34.5 28.2 122 31.5 28.9 109 MADISON PLATEAU 7750 24.1 19.8 122 26.9 20.8 129 NORTHEAST ENTRANCE 7350 7.3 9.3 78 10.9 10.3 106 PARKER PEAK 9400 20.3 17.4 117 19.0 13.0 146 SYLVAN LAKE 8420 16.3 18.0 91 21.0 17.1 123 THUMB DIVIDE 7980 13.0 14.3 91 15.6 15.1 103 TWO OCEAN PLATEAU 9240 28.4 22.2 128 23.3 22.0 106 WHISKEY CREEK 6800 15.1 13.7 110 21.2 16.4 129 WHITE MILL 8700 22.0 19.4 113 -M 21.5 * WOLVERINE 7650 8.3 10.2 81 10.8 10.7 101 ----- ----- Basin wide percent of average 112 117 WIND RIVER BURROUGHS CREEK 8750 12.8 12.1 106 15.6 13.0 120 COLD SPRINGS 9630 5.3 6.9 77 8.3 8.0 104 DEER PARK 9700 11.0 13.9 79 15.5 17.0 91 HOBBS PARK 10100 10.0 11.4 88 10.7 9.4 114 LITTLE WARM 9370 7.7 9.1 85 11.1 10.4 107 SOUTH PASS 9040 10.2 13.5 76 13.0 14.3 91 ST. LAWRENCE ALT 8620 4.9 5.6 88 6.5 6.7 97 TOGWOTEE PASS 9580 21.5 19.7 109 23.6 19.6 120 TOWNSEND CREEK 8700 6.0 6.6 91 9.1 8.4 108 ----- ----- Basin wide percent of average 90 106 BIGHORN BASIN BALD MTN. 9380 12.7 15.3 83 12.3 13.4 92 BEAR TRAP MEADOW 8200 6.1 4.1 149 6.8 6.2 110 BLACKWATER 9780 19.7 19.5 101 18.5 16.4 113 BONE SPRINGS DIV 9350 12.7 12.4 102 14.1 11.0 128 EVENING STAR 9200 23.7 23.8 100 26.2 20.7 127 GRAVE SPRINGS 8550 6.8 6.7 101 7.8 7.3 107 KIRWIN 9550 9.8 8.8 111 11.9 8.7 137 MARQUETTE 8760 3.3 6.6 50 7.2 7.1 101 MIDDLE POWDER 7760 7.4 8.4 88 7.0 9.2 76 OWL CREEK 8975 4.1 3.9 105 5.4 4.2 129 POWDER RIVER PASS 9480 9.1 8.3 110 11.1 9.5 117 SHELL CREEK 9580 12.4 11.2 111 12.1 10.4 116 SYLVAN LAKE 8420 16.3 18.0 91 21.0 17.1 123 SYLVAN ROAD 7120 8.8 10.8 81 17.5 15.1 116 TIMBER CREEK 7950 2.5 4.0 62 6.1 5.1 120 YOUNTS PEAK 8350 13.8 14.1 98 15.1 13.0 116 ----- ----- Basin wide percent of average 96 115 SHOSHONE RIVER BLACKWATER 9780 19.7 19.5 101 18.5 16.4 113 EVENING STAR 9200 23.7 23.8 100 26.2 20.7 127 KIRWIN 9550 9.8 8.8 111 11.9 8.7 137 MARQUETTE 8760 3.3 6.6 50 7.2 7.1 101 SYLVAN LAKE 8420 16.3 18.0 91 21.0 17.1 123 SYLVAN ROAD 7120 8.8 10.8 81 17.5 15.1 116 YOUNTS PEAK 8350 13.8 14.1 98 15.1 13.0 116 ----- ----- Basin wide percent of average 94 120 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.1 4.1 149 6.8 6.2 110 BIG GOOSE 7990 6.1 7.2 85 9.0 6.4 141 BONE SPRINGS DIV 9350 12.7 12.4 102 14.1 11.0 128 BURGESS JUNCTION 7880 8.6 8.5 101 10.2 9.0 113 CLOUD PEAK RESERVOIR 9860 11.6 9.5 122 11.7 9.3 126 DOME LAKE 8880 7.9 9.2 86 11.3 9.8 115 GRAVE SPRINGS 8550 6.8 6.7 101 7.8 7.3 107 HANSEN SAWMILL 8360 4.8 4.9 98 7.2 6.0 120 MIDDLE POWDER 7760 7.4 8.4 88 7.0 9.2 76 POWDER RIVER PASS 9480 9.1 8.3 110 11.1 9.5 117 SUCKER CREEK 8880 10.0 8.6 116 11.9 10.0 119 TIE CREEK 6870 4.8 4.6 104 8.7 7.5 116 ----- ----- Basin wide percent of average 104 115 BELLE FOURCHE BLIND PARK 6890 5.6 6.3 89 8.5 8.8 97 COLE CANYON 5910 4.9 5.4 91 5.9 5.2 113 NORTH RAPID CREEK 6130 6.3 6.3 100 6.6 7.1 93 ----- ----- Basin wide percent of average 93 100 UPPER N. PLATTE RIVER COLUMBINE 9160 20.5 20.6 100 22.9 19.7 116 DIVIDE PEAK 8880 19.2 14.8 130 19.5 16.0 122 ELK RIVER 8700 20.4 15.1 135 19.8 15.1 131 JOE WRIGHT 10120 18.5 16.3 113 22.0 19.0 116 NORTH FRENCH CREEK 10130 23.8 21.3 112 23.7 19.1 124 OLD BATTLE 10000 26.9 24.5 110 31.8 26.6 120 SAGE CREEK BASIN 7850 14.6 8.6 170 15.5 9.3 167 SOUTH BRUSH CREEK 8440 9.9 9.2 108 13.6 12.7 107 TOWER 10500 35.1 35.6 99 -M 30.1 * WEBBER SPRINGS 9250 20.8 19.7 106 24.4 20.8 117 WILLOW CREEK PASS 9540 12.4 9.0 138 12.9 9.8 132 ----- ----- Basin wide percent of average 114 123 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 16.7 18.0 93 17.5 16.5 106 CASPER MTN. 7900 9.0 10.6 85 10.7 10.4 103 DEADMAN HILL 10220 13.5 12.3 110 14.0 12.4 113 DEER PARK 9700 11.0 13.9 79 15.5 17.0 91 LAPRELE CREEK 8375 5.6 8.4 67 8.1 9.4 86 RENO HILL 8400 9.1 9.7 94 10.9 10.8 101 ROACH 9700 15.6 13.2 118 18.1 13.8 131 SAND LAKE 10050 21.5 23.5 91 21.6 18.2 119 SOUTH PASS 9040 10.2 13.5 76 13.0 14.3 91 WINDY PEAK 7900 6.1 5.6 109 7.7 8.0 96 ----- ----- Basin wide percent of average 92 105 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 13.4 9.1 147 14.1 11.6 122 DIVIDE PEAK 8880 19.2 14.8 130 19.5 16.0 122 OLD BATTLE 10000 26.9 24.5 110 31.8 26.6 120 SANDSTONE RS 8150 14.3 11.7 122 17.8 14.8 120 WHISKEY PARK 8950 25.3 22.3 113 28.9 22.2 130 ----- ----- Basin wide percent of average 120 123 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.4 11.4 91 10.5 10.7 98 BLIND BULL SUM 8650 19.5 21.7 90 14.9 18.0 83 EAST RIM DIVIDE 7930 7.0 10.4 67 9.2 9.6 96 ELKHART PARK G.S. 9400 9.1 10.5 87 9.9 10.3 96 GROS VENTRE SUMMIT 8750 10.9 10.8 101 12.1 10.1 120 GUNSIGHT PASS 9820 10.2 -M * 11.7 -M * KENDALL R.S. 7740 9.4 11.6 81 11.3 11.7 97 LOOMIS PARK 8240 12.7 13.5 94 14.4 14.0 103 NEW FORK LAKE 8340 7.8 9.1 86 8.0 9.1 88 SNIDER BASIN 8060 10.2 11.7 87 11.3 13.0 87 SPRING CREEK DIVIDE 9000 17.9 20.8 86 18.3 21.3 86 TRIPLE PEAK 8500 18.4 19.7 93 21.6 19.4 111 ----- ----- Basin wide percent of average 88 96 LOWER GREEN RIVER HAMS FORK 7840 9.2 10.2 90 8.0 9.8 82 HEWINTA 9519 9.7 8.4 115 13.4 10.9 123 HICKERSON PARK 9145 5.4 5.5 98 7.7 5.9 131 HOLE-IN-ROCK 9150 4.6 5.3 87 7.9 5.5 144 INDIAN CREEK 9425 18.0 20.9 86 13.6 19.9 68 KELLEY R.S. 8180 11.2 13.0 86 13.7 16.3 84 STEEL CREEK PARK 10200 11.3 11.7 97 14.8 12.1 122 ----- ----- Basin wide percent of average 93 98 UPPER BEAR RIVER BUG LAKE 7950 14.2 16.0 89 13.8 15.2 91 HAYDEN FORK 9212 14.7 12.2 120 18.8 16.1 117 KELLEY R.S. 8180 11.2 13.0 86 13.7 16.3 84 LILY LAKE 9156 11.6 10.1 115 14.5 13.5 107 MONTE CRISTO 8960 22.4 22.9 98 21.6 19.9 109 SALT RIVER SUMMIT 7760 10.6 11.4 93 12.6 14.9 85 TRIAL LAKE 9992 16.2 19.3 84 19.4 19.2 101 ----- ----- Basin wide percent of average 96 99 ----------------------------------------------------------------------------- -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 1961-90. 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.