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 8 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.6 16.7 93 22.6 19.4 116 COTTONWOOD CREEK 7670 20.9 19.9 105 21.9 24.1 91 GRAND TARGHEE 9260 41.6 -M * 28.0 -M * GRANITE CREEK 6770 15.2 17.0 89 20.4 18.2 112 GRASSY LAKE 7265 27.8 31.2 89 35.1 32.3 109 GROS VENTRE SUMMIT 8750 11.5 12.2 94 12.6 11.3 112 GUNSIGHT PASS 9820 10.6 -M * 12.5 -M * LEWIS LAKE DIVIDE 7850 27.4 31.2 88 31.8 33.0 96 PHILLIPS BENCH 8200 27.2 25.2 108 29.8 25.8 116 SALT RIVER SUMMIT 7760 11.7 12.8 91 13.7 16.5 83 SNAKE RIVER STATION 6920 15.3 17.5 87 23.2 20.2 115 SPRING CREEK DIVIDE 9000 19.3 23.3 83 19.9 23.4 85 THUMB DIVIDE 7980 14.5 16.4 88 17.1 16.8 102 TOGWOTEE PASS 9580 23.5 21.7 108 25.6 21.6 119 TWO OCEAN PLATEAU 9240 31.0 24.4 127 23.3 24.5 95 WILLOW CREEK 8380 27.5 26.7 103 33.0 28.3 117 ----- ----- Basin wide percent of average 97 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 22.2 21.0 106 20.9 17.9 117 BLACK BEAR 8170 40.3 35.1 115 -M 35.1 * CANYON 7870 14.9 12.2 122 18.4 13.6 135 FISHER CREEK 9100 36.8 31.1 118 -M 32.1 * MADISON PLATEAU 7750 26.2 22.3 117 28.9 23.2 125 NORTHEAST ENTRANCE 7350 8.3 10.3 81 11.7 11.2 104 PARKER PEAK 9400 22.4 19.2 117 -M 14.3 * SYLVAN LAKE 8420 18.3 19.8 92 22.9 18.6 123 THUMB DIVIDE 7980 14.5 16.4 88 17.1 16.8 102 TWO OCEAN PLATEAU 9240 31.0 24.4 127 23.3 24.5 95 WHISKEY CREEK 6800 16.5 15.4 107 22.6 18.3 123 WHITE MILL 8700 23.7 21.5 110 -M 23.8 * WOLVERINE 7650 9.0 11.1 81 11.5 11.6 99 ----- ----- Basin wide percent of average 109 114 WIND RIVER BURROUGHS CREEK 8750 13.4 13.2 102 16.3 14.3 114 COLD SPRINGS 9630 5.6 7.7 73 8.6 8.8 98 DEER PARK 9700 13.1 14.8 89 17.6 18.8 94 HOBBS PARK 10100 11.7 12.6 93 12.1 10.4 116 LITTLE WARM 9370 8.2 10.1 81 11.6 11.4 102 SOUTH PASS 9040 12.4 14.8 84 15.3 15.7 97 ST. LAWRENCE ALT 8620 6.1 6.3 97 7.6 7.3 104 TOGWOTEE PASS 9580 23.5 21.7 108 25.6 21.6 119 TOWNSEND CREEK 8700 7.7 7.3 105 10.9 9.4 116 ----- ----- Basin wide percent of average 94 107 BIGHORN BASIN BALD MTN. 9380 14.6 16.8 87 13.6 14.8 92 BEAR TRAP MEADOW 8200 7.5 4.7 160 7.7 6.7 115 BLACKWATER 9780 21.1 21.5 98 19.7 18.0 109 BONE SPRINGS DIV 9350 14.7 13.9 106 15.3 12.2 125 EVENING STAR 9200 25.5 26.3 97 -M 22.6 * GRAVE SPRINGS 8550 8.3 7.8 106 9.1 8.2 111 KIRWIN 9550 10.3 9.7 106 12.6 9.6 131 MARQUETTE 8760 4.7 7.2 65 8.1 7.9 103 MIDDLE POWDER 7760 9.9 9.6 103 8.1 10.1 80 OWL CREEK 8975 4.7 4.4 107 5.8 4.6 126 POWDER RIVER PASS 9480 10.7 9.2 116 12.7 10.5 121 SHELL CREEK 9580 13.7 12.4 110 13.3 11.3 118 SYLVAN LAKE 8420 18.3 19.8 92 22.9 18.6 123 SYLVAN ROAD 7120 10.0 12.0 83 18.7 16.1 116 TIMBER CREEK 7950 3.5 4.5 78 6.9 5.7 121 YOUNTS PEAK 8350 14.6 15.3 95 15.5 14.2 109 ----- ----- Basin wide percent of average 98 113 SHOSHONE RIVER BLACKWATER 9780 21.1 21.5 98 19.7 18.0 109 EVENING STAR 9200 25.5 26.3 97 -M 22.6 * KIRWIN 9550 10.3 9.7 106 12.6 9.6 131 MARQUETTE 8760 4.7 7.2 65 8.1 7.9 103 SYLVAN LAKE 8420 18.3 19.8 92 22.9 18.6 123 SYLVAN ROAD 7120 10.0 12.0 83 18.7 16.1 116 YOUNTS PEAK 8350 14.6 15.3 95 15.5 14.2 109 ----- ----- Basin wide percent of average 93 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 7.5 4.7 160 7.7 6.7 115 BIG GOOSE 7990 7.1 8.2 87 10.1 7.0 144 BONE SPRINGS DIV 9350 14.7 13.9 106 15.3 12.2 125 BURGESS JUNCTION 7880 10.7 9.5 113 12.1 10.0 121 CLOUD PEAK RESERVOIR 9860 13.4 10.7 125 13.1 10.3 127 DOME LAKE 8880 9.2 10.0 92 12.6 10.7 118 GRAVE SPRINGS 8550 8.3 7.8 106 9.1 8.2 111 HANSEN SAWMILL 8360 5.4 5.5 98 7.6 6.7 113 MIDDLE POWDER 7760 9.9 9.6 103 8.1 10.1 80 POWDER RIVER PASS 9480 10.7 9.2 116 12.7 10.5 121 SUCKER CREEK 8880 12.1 9.7 125 14.1 11.1 127 TIE CREEK 6870 6.6 5.4 122 10.5 8.2 128 ----- ----- Basin wide percent of average 111 119 BELLE FOURCHE BLIND PARK 6890 6.9 7.8 88 9.6 9.7 99 COLE CANYON 5910 5.5 5.9 93 6.7 5.8 116 NORTH RAPID CREEK 6130 8.1 7.1 114 7.8 7.7 101 ----- ----- Basin wide percent of average 99 104 UPPER N. PLATTE RIVER COLUMBINE 9160 23.6 22.9 103 25.0 21.9 114 DIVIDE PEAK 8880 20.9 16.6 126 21.0 17.9 117 ELK RIVER 8700 22.5 16.9 133 21.2 16.9 125 JOE WRIGHT 10120 20.7 18.1 114 24.1 21.2 114 NORTH FRENCH CREEK 10130 27.1 24.0 113 26.3 21.2 124 OLD BATTLE 10000 29.0 27.8 104 33.2 30.0 111 SAGE CREEK BASIN 7850 16.3 9.6 170 16.6 10.4 160 SOUTH BRUSH CREEK 8440 12.4 10.8 115 15.5 14.0 111 TOWER 10500 38.3 39.4 97 30.8 33.5 92 WEBBER SPRINGS 9250 22.9 22.8 100 26.7 23.1 116 WILLOW CREEK PASS 9540 13.9 10.1 138 14.1 10.9 129 ----- ----- Basin wide percent of average 113 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 18.2 20.0 91 18.9 18.5 102 CASPER MTN. 7900 11.6 11.9 97 12.6 11.7 108 DEADMAN HILL 10220 15.2 13.6 112 15.6 14.1 111 DEER PARK 9700 13.1 14.8 89 17.6 18.8 94 LAPRELE CREEK 8375 6.7 9.5 71 9.4 10.6 89 RENO HILL 8400 11.8 11.1 106 13.7 12.2 112 ROACH 9700 17.0 14.6 116 19.5 15.8 123 SAND LAKE 10050 24.3 26.9 90 24.2 20.3 119 SOUTH PASS 9040 12.4 14.8 84 15.3 15.7 97 WINDY PEAK 7900 7.0 6.6 106 8.5 8.9 96 ----- ----- Basin wide percent of average 95 106 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.2 10.5 145 15.3 13.1 117 DIVIDE PEAK 8880 20.9 16.6 126 21.0 17.9 117 OLD BATTLE 10000 29.0 27.8 104 33.2 30.0 111 SANDSTONE RS 8150 15.8 13.4 118 19.6 16.4 120 WHISKEY PARK 8950 29.0 25.5 114 30.7 24.6 125 ----- ----- Basin wide percent of average 117 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.3 12.7 89 11.4 11.9 96 BLIND BULL SUM 8650 21.3 24.4 87 15.8 19.8 80 EAST RIM DIVIDE 7930 7.5 11.6 65 9.7 10.7 91 ELKHART PARK G.S. 9400 9.7 11.7 83 10.5 11.5 91 GROS VENTRE SUMMIT 8750 11.5 12.2 94 12.6 11.3 112 GUNSIGHT PASS 9820 10.6 -M * 12.5 -M * KENDALL R.S. 7740 10.0 13.2 76 11.9 13.1 91 LOOMIS PARK 8240 13.6 15.4 88 15.2 15.5 98 NEW FORK LAKE 8340 8.2 10.1 81 8.4 10.0 84 SNIDER BASIN 8060 11.3 13.0 87 12.4 14.3 87 SPRING CREEK DIVIDE 9000 19.3 23.3 83 19.9 23.4 85 TRIPLE PEAK 8500 21.0 22.0 95 24.2 21.8 111 ----- ----- Basin wide percent of average 85 93 LOWER GREEN RIVER HAMS FORK 7840 10.5 11.7 90 8.7 10.8 81 HEWINTA 9519 12.0 9.7 124 14.7 12.3 120 HICKERSON PARK 9145 6.5 6.2 105 8.8 6.6 133 HOLE-IN-ROCK 9150 5.5 6.0 92 8.8 6.1 144 INDIAN CREEK 9425 20.2 23.7 85 -M 22.1 * KELLEY R.S. 8180 12.5 14.8 84 15.1 17.9 84 STEEL CREEK PARK 10200 13.1 13.4 98 16.3 13.6 120 ----- ----- Basin wide percent of average 94 108 UPPER BEAR RIVER BUG LAKE 7950 15.9 18.1 88 15.4 16.9 91 HAYDEN FORK 9212 17.4 14.0 124 21.1 18.0 117 KELLEY R.S. 8180 12.5 14.8 84 15.1 17.9 84 LILY LAKE 9156 13.1 11.4 115 15.9 14.9 107 MONTE CRISTO 8960 25.3 26.2 97 23.9 22.2 108 SALT RIVER SUMMIT 7760 11.7 12.8 91 13.7 16.5 83 TRIAL LAKE 9992 18.9 21.8 87 21.9 21.6 101 ----- ----- 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.