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: MARCH 2 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.5 16.1 96 22.0 18.7 118 COTTONWOOD CREEK 7670 20.2 18.7 108 21.3 23.2 92 GRAND TARGHEE 9260 40.6 -M * 27.5 -M * GRANITE CREEK 6770 14.8 16.2 91 20.0 17.5 114 GRASSY LAKE 7265 26.9 29.8 90 34.3 31.2 110 GROS VENTRE SUMMIT 8750 11.3 11.6 97 12.3 10.8 114 GUNSIGHT PASS 9820 10.5 -M * 12.2 -M * LEWIS LAKE DIVIDE 7850 26.3 29.9 88 31.0 31.8 97 PHILLIPS BENCH 8200 26.4 24.1 110 29.1 24.8 117 SALT RIVER SUMMIT 7760 11.6 12.3 94 13.5 15.9 85 SNAKE RIVER STATION 6920 14.5 16.7 87 22.6 19.6 115 SPRING CREEK DIVIDE 9000 19.1 22.3 86 19.4 22.6 86 THUMB DIVIDE 7980 14.0 15.5 90 16.6 16.1 103 TOGWOTEE PASS 9580 22.5 20.9 108 24.6 20.8 118 TWO OCEAN PLATEAU 9240 29.9 23.5 127 23.4 23.6 99 WILLOW CREEK 8380 26.7 25.6 104 32.3 27.2 119 ----- ----- Basin wide percent of average 99 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 21.7 19.9 109 20.6 17.2 120 BLACK BEAR 8170 39.3 33.3 118 -M 33.6 * CANYON 7870 14.5 11.4 127 17.9 13.1 137 FISHER CREEK 9100 36.0 29.9 120 -M 30.8 * MADISON PLATEAU 7750 25.3 21.1 120 28.3 22.3 127 NORTHEAST ENTRANCE 7350 7.9 9.8 81 11.5 10.9 106 PARKER PEAK 9400 21.8 18.3 119 -M 13.8 * SYLVAN LAKE 8420 17.7 18.8 94 22.4 18.0 124 THUMB DIVIDE 7980 14.0 15.5 90 16.6 16.1 103 TWO OCEAN PLATEAU 9240 29.9 23.5 127 23.4 23.6 99 WHISKEY CREEK 6800 16.1 14.5 111 22.1 17.5 126 WHITE MILL 8700 23.1 20.5 113 -M 22.9 * WOLVERINE 7650 8.9 10.7 83 11.2 11.2 100 ----- ----- Basin wide percent of average 112 116 WIND RIVER BURROUGHS CREEK 8750 13.2 12.7 104 16.0 13.8 116 COLD SPRINGS 9630 5.5 7.3 75 8.5 8.4 101 DEER PARK 9700 11.6 14.4 81 15.6 18.0 87 HOBBS PARK 10100 10.6 12.0 88 10.9 10.0 109 LITTLE WARM 9370 8.0 9.6 83 11.4 11.0 104 SOUTH PASS 9040 10.8 14.1 77 13.6 15.1 90 ST. LAWRENCE ALT 8620 5.4 5.9 92 6.9 7.1 97 TOGWOTEE PASS 9580 22.5 20.9 108 24.6 20.8 118 TOWNSEND CREEK 8700 6.4 7.0 91 9.4 9.0 104 ----- ----- Basin wide percent of average 90 103 BIGHORN BASIN BALD MTN. 9380 13.5 16.1 84 12.8 14.2 90 BEAR TRAP MEADOW 8200 6.7 4.4 152 7.0 6.4 109 BLACKWATER 9780 20.6 20.6 100 19.2 17.3 111 BONE SPRINGS DIV 9350 13.5 13.3 102 14.5 11.7 124 EVENING STAR 9200 24.9 25.2 99 -M 21.9 * GRAVE SPRINGS 8550 7.4 7.4 100 8.3 7.9 105 KIRWIN 9550 10.2 9.2 111 12.2 9.3 131 MARQUETTE 8760 3.9 6.9 57 7.4 7.5 99 MIDDLE POWDER 7760 8.5 9.1 93 7.1 9.7 73 OWL CREEK 8975 4.2 4.2 100 5.5 4.4 125 POWDER RIVER PASS 9480 9.9 8.8 112 11.9 10.1 118 SHELL CREEK 9580 13.2 11.9 111 12.8 10.9 117 SYLVAN LAKE 8420 17.7 18.8 94 22.4 18.0 124 SYLVAN ROAD 7120 9.7 11.5 84 18.3 15.7 117 TIMBER CREEK 7950 3.0 4.2 71 6.5 5.4 120 YOUNTS PEAK 8350 14.2 14.7 97 15.4 13.7 112 ----- ----- Basin wide percent of average 97 112 SHOSHONE RIVER BLACKWATER 9780 20.6 20.6 100 19.2 17.3 111 EVENING STAR 9200 24.9 25.2 99 -M 21.9 * KIRWIN 9550 10.2 9.2 111 12.2 9.3 131 MARQUETTE 8760 3.9 6.9 57 7.4 7.5 99 SYLVAN LAKE 8420 17.7 18.8 94 22.4 18.0 124 SYLVAN ROAD 7120 9.7 11.5 84 18.3 15.7 117 YOUNTS PEAK 8350 14.2 14.7 97 15.4 13.7 112 ----- ----- Basin wide percent of average 95 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.7 4.4 152 7.0 6.4 109 BIG GOOSE 7990 6.6 7.8 85 9.3 6.8 137 BONE SPRINGS DIV 9350 13.5 13.3 102 14.5 11.7 124 BURGESS JUNCTION 7880 9.2 9.0 102 10.8 9.6 113 CLOUD PEAK RESERVOIR 9860 12.3 10.1 122 12.3 9.9 124 DOME LAKE 8880 8.5 9.6 89 11.6 10.3 113 GRAVE SPRINGS 8550 7.4 7.4 100 8.3 7.9 105 HANSEN SAWMILL 8360 5.2 5.2 100 7.4 6.3 117 MIDDLE POWDER 7760 8.5 9.1 93 7.1 9.7 73 POWDER RIVER PASS 9480 9.9 8.8 112 11.9 10.1 118 SUCKER CREEK 8880 10.8 9.2 117 12.8 10.6 121 TIE CREEK 6870 5.3 5.0 106 10.6 7.9 134 ----- ----- Basin wide percent of average 105 115 BELLE FOURCHE BLIND PARK 6890 6.0 7.3 82 8.8 9.4 94 COLE CANYON 5910 5.1 5.8 88 6.1 5.5 111 NORTH RAPID CREEK 6130 6.8 6.9 99 7.0 7.5 93 ----- ----- Basin wide percent of average 89 98 UPPER N. PLATTE RIVER COLUMBINE 9160 21.0 22.0 95 24.5 21.0 117 DIVIDE PEAK 8880 20.2 15.8 128 20.2 17.2 117 ELK RIVER 8700 21.5 16.2 133 20.8 16.2 128 JOE WRIGHT 10120 19.9 17.4 114 23.2 20.3 114 NORTH FRENCH CREEK 10130 25.8 22.8 113 25.4 20.3 125 OLD BATTLE 10000 28.2 26.5 106 33.0 28.7 115 SAGE CREEK BASIN 7850 15.3 9.2 166 16.2 10.0 162 SOUTH BRUSH CREEK 8440 11.3 10.1 112 14.7 13.4 110 TOWER 10500 -M 37.8 * -M 32.2 * WEBBER SPRINGS 9250 22.0 21.6 102 25.6 22.2 115 WILLOW CREEK PASS 9540 13.3 9.7 137 13.5 10.4 130 ----- ----- Basin wide percent of average 116 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 17.6 19.1 92 18.3 17.6 104 CASPER MTN. 7900 9.9 11.4 87 11.4 11.2 102 DEADMAN HILL 10220 14.4 13.1 110 14.7 13.4 110 DEER PARK 9700 11.6 14.4 81 15.6 18.0 87 LAPRELE CREEK 8375 5.8 9.0 64 8.4 10.1 83 RENO HILL 8400 10.0 10.5 95 11.6 11.6 100 ROACH 9700 16.5 14.0 118 19.1 15.0 127 SAND LAKE 10050 22.8 25.4 90 22.9 19.4 118 SOUTH PASS 9040 10.8 14.1 77 13.6 15.1 90 WINDY PEAK 7900 6.5 6.1 107 7.9 8.5 93 ----- ----- Basin wide percent of average 92 103 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.6 9.8 149 14.9 12.4 120 DIVIDE PEAK 8880 20.2 15.8 128 20.2 17.2 117 OLD BATTLE 10000 28.2 26.5 106 33.0 28.7 115 SANDSTONE RS 8150 15.4 12.6 122 19.0 15.8 120 WHISKEY PARK 8950 27.8 24.1 115 30.0 23.6 127 ----- ----- Basin wide percent of average 120 120 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.0 12.2 90 11.1 11.4 97 BLIND BULL SUM 8650 20.8 23.2 90 15.6 19.2 81 EAST RIM DIVIDE 7930 7.4 11.1 67 9.5 10.3 92 ELKHART PARK G.S. 9400 9.5 11.2 85 10.1 11.0 92 GROS VENTRE SUMMIT 8750 11.3 11.6 97 12.3 10.8 114 GUNSIGHT PASS 9820 10.5 -M * 12.2 -M * KENDALL R.S. 7740 9.8 12.5 78 11.6 12.6 92 LOOMIS PARK 8240 13.4 14.6 92 14.9 14.9 100 NEW FORK LAKE 8340 8.1 9.7 84 8.2 9.7 85 SNIDER BASIN 8060 11.1 12.5 89 12.1 13.8 88 SPRING CREEK DIVIDE 9000 19.1 22.3 86 19.4 22.6 86 TRIPLE PEAK 8500 20.3 21.0 97 23.4 20.9 112 ----- ----- Basin wide percent of average 88 94 LOWER GREEN RIVER HAMS FORK 7840 10.3 11.1 93 8.5 10.5 81 HEWINTA 9519 11.1 9.2 121 14.4 11.7 123 HICKERSON PARK 9145 6.3 5.9 107 8.5 6.3 135 HOLE-IN-ROCK 9150 5.3 5.8 91 8.6 5.8 148 INDIAN CREEK 9425 19.6 22.5 87 -M 21.2 * KELLEY R.S. 8180 12.3 14.1 87 14.8 17.3 86 STEEL CREEK PARK 10200 12.6 12.8 98 16.0 13.0 123 ----- ----- Basin wide percent of average 95 110 UPPER BEAR RIVER BUG LAKE 7950 15.7 17.3 91 15.0 16.3 92 HAYDEN FORK 9212 16.6 13.3 125 20.3 17.2 118 KELLEY R.S. 8180 12.3 14.1 87 14.8 17.3 86 LILY LAKE 9156 12.8 10.9 117 15.3 14.4 106 MONTE CRISTO 8960 25.0 24.9 100 23.2 21.3 109 SALT RIVER SUMMIT 7760 11.6 12.3 94 13.5 15.9 85 TRIAL LAKE 9992 18.4 20.8 88 21.3 20.7 103 ----- ----- Basin wide percent of average 99 100 ----------------------------------------------------------------------------- -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.