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 MONDAY: MARCH 10 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 -M 16.9 * 22.6 19.6 115 COTTONWOOD CREEK 7670 20.8 20.4 102 21.9 24.4 90 GRAND TARGHEE 9260 41.5 -M * 27.9 -M * GRANITE CREEK 6770 15.1 17.3 87 20.4 18.3 111 GRASSY LAKE 7265 27.9 31.6 88 35.2 32.7 108 GROS VENTRE SUMMIT 8750 11.3 12.4 91 12.5 11.4 110 GUNSIGHT PASS 9820 10.6 -M * 12.4 -M * LEWIS LAKE DIVIDE 7850 27.2 31.7 86 31.7 33.3 95 PHILLIPS BENCH 8200 27.2 25.6 106 29.8 26.1 114 SALT RIVER SUMMIT 7760 11.8 12.9 91 13.6 16.7 81 SNAKE RIVER STATION 6920 15.1 17.7 85 23.2 20.4 114 SPRING CREEK DIVIDE 9000 19.2 23.6 81 19.9 23.7 84 THUMB DIVIDE 7980 14.5 16.7 87 17.0 17.0 100 TOGWOTEE PASS 9580 23.5 22.0 107 25.6 21.9 117 TWO OCEAN PLATEAU 9240 30.9 24.8 125 23.3 24.8 94 WILLOW CREEK 8380 27.5 27.1 101 33.0 28.7 115 ----- ----- Basin wide percent of average 96 103 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 22.1 21.3 104 20.9 18.1 115 BLACK BEAR 8170 40.3 35.5 114 -M 35.6 * CANYON 7870 14.9 12.3 121 18.4 13.8 133 FISHER CREEK 9100 36.7 31.5 117 -M 32.5 * MADISON PLATEAU 7750 26.1 22.5 116 28.8 23.5 123 NORTHEAST ENTRANCE 7350 8.2 10.4 79 11.7 11.4 103 PARKER PEAK 9400 22.4 19.4 115 -M 14.5 * SYLVAN LAKE 8420 18.2 20.1 91 22.9 18.9 121 THUMB DIVIDE 7980 14.5 16.7 87 17.0 17.0 100 TWO OCEAN PLATEAU 9240 30.9 24.8 125 23.3 24.8 94 WHISKEY CREEK 6800 16.4 15.6 105 22.7 18.5 123 WHITE MILL 8700 23.7 21.8 109 -M 24.1 * WOLVERINE 7650 9.0 11.2 80 11.5 11.7 98 ----- ----- Basin wide percent of average 108 112 WIND RIVER BURROUGHS CREEK 8750 13.4 13.4 100 16.2 14.5 112 COLD SPRINGS 9630 5.6 7.8 72 8.6 8.9 97 DEER PARK 9700 13.1 15.1 87 17.6 19.1 92 HOBBS PARK 10100 11.7 12.8 91 12.2 10.6 115 LITTLE WARM 9370 8.1 10.3 79 11.6 11.5 101 SOUTH PASS 9040 12.4 15.1 82 15.3 15.9 96 ST. LAWRENCE ALT 8620 6.1 6.4 95 7.6 7.4 103 TOGWOTEE PASS 9580 23.5 22.0 107 25.6 21.9 117 TOWNSEND CREEK 8700 7.7 7.5 103 10.8 9.5 114 ----- ----- Basin wide percent of average 92 105 BIGHORN BASIN BALD MTN. 9380 14.6 17.0 86 13.5 15.0 90 BEAR TRAP MEADOW 8200 7.4 4.8 154 7.6 6.8 112 BLACKWATER 9780 21.1 21.9 96 19.7 18.2 108 BONE SPRINGS DIV 9350 14.7 14.0 105 15.3 12.4 123 EVENING STAR 9200 25.3 26.7 95 -M 22.9 * GRAVE SPRINGS 8550 8.3 7.9 105 9.0 8.4 107 KIRWIN 9550 10.3 9.9 104 12.6 9.7 130 MARQUETTE 8760 4.6 7.3 63 8.1 8.0 101 MIDDLE POWDER 7760 9.9 9.7 102 8.0 10.3 78 OWL CREEK 8975 4.7 4.5 104 5.8 4.7 123 POWDER RIVER PASS 9480 10.7 9.4 114 12.7 10.6 120 SHELL CREEK 9580 13.8 12.6 110 13.3 11.4 117 SYLVAN LAKE 8420 18.2 20.1 91 22.9 18.9 121 SYLVAN ROAD 7120 10.0 12.0 83 18.6 16.2 115 TIMBER CREEK 7950 3.5 4.6 76 6.9 5.8 119 YOUNTS PEAK 8350 14.5 15.5 94 15.5 14.4 108 ----- ----- Basin wide percent of average 97 111 SHOSHONE RIVER BLACKWATER 9780 21.1 21.9 96 19.7 18.2 108 EVENING STAR 9200 25.3 26.7 95 -M 22.9 * KIRWIN 9550 10.3 9.9 104 12.6 9.7 130 MARQUETTE 8760 4.6 7.3 63 8.1 8.0 101 SYLVAN LAKE 8420 18.2 20.1 91 22.9 18.9 121 SYLVAN ROAD 7120 10.0 12.0 83 18.6 16.2 115 YOUNTS PEAK 8350 14.5 15.5 94 15.5 14.4 108 ----- ----- Basin wide percent of average 92 114 POWDER-TONGUE BEAR TRAP MEADOW 8200 7.4 4.8 154 7.6 6.8 112 BIG GOOSE 7990 7.1 8.3 86 10.0 7.1 141 BONE SPRINGS DIV 9350 14.7 14.0 105 15.3 12.4 123 BURGESS JUNCTION 7880 10.6 9.6 110 12.1 10.2 119 CLOUD PEAK RESERVOIR 9860 13.4 11.0 122 13.0 10.5 124 DOME LAKE 8880 9.1 10.2 89 12.6 10.9 116 GRAVE SPRINGS 8550 8.3 7.9 105 9.0 8.4 107 HANSEN SAWMILL 8360 5.4 5.6 96 7.6 6.8 112 MIDDLE POWDER 7760 9.9 9.7 102 8.0 10.3 78 POWDER RIVER PASS 9480 10.7 9.4 114 12.7 10.6 120 SUCKER CREEK 8880 12.2 9.8 124 14.1 11.3 125 TIE CREEK 6870 6.6 5.7 116 10.4 8.3 125 ----- ----- Basin wide percent of average 109 117 BELLE FOURCHE BLIND PARK 6890 6.8 7.9 86 9.6 9.8 98 COLE CANYON 5910 5.4 6.0 90 6.7 5.8 116 NORTH RAPID CREEK 6130 7.7 7.2 107 7.7 7.8 99 ----- ----- Basin wide percent of average 94 103 UPPER N. PLATTE RIVER COLUMBINE 9160 23.8 23.2 103 25.2 22.2 114 DIVIDE PEAK 8880 20.8 16.9 123 21.2 18.2 116 ELK RIVER 8700 22.8 17.2 133 21.4 17.2 124 JOE WRIGHT 10120 20.7 18.4 112 24.3 21.5 113 NORTH FRENCH CREEK 10130 27.2 24.4 111 26.6 21.5 124 OLD BATTLE 10000 29.1 28.2 103 33.3 30.4 110 SAGE CREEK BASIN 7850 16.3 9.8 166 16.6 10.5 158 SOUTH BRUSH CREEK 8440 12.4 11.0 113 15.6 14.1 111 TOWER 10500 38.1 39.9 95 30.8 34.0 91 WEBBER SPRINGS 9250 22.8 23.3 98 26.8 23.4 115 WILLOW CREEK PASS 9540 13.9 10.3 135 14.1 11.0 128 ----- ----- Basin wide percent of average 111 114 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 18.1 20.3 89 19.0 18.7 102 CASPER MTN. 7900 11.6 12.1 96 12.6 11.9 106 DEADMAN HILL 10220 15.1 13.8 109 15.7 14.3 110 DEER PARK 9700 13.1 15.1 87 17.6 19.1 92 LAPRELE CREEK 8375 6.6 9.6 69 9.3 10.7 87 RENO HILL 8400 11.8 11.4 104 13.6 12.3 111 ROACH 9700 17.0 14.8 115 19.5 16.0 122 SAND LAKE 10050 24.2 27.4 88 24.2 20.6 117 SOUTH PASS 9040 12.4 15.1 82 15.3 15.9 96 WINDY PEAK 7900 7.0 6.7 104 8.5 9.0 94 ----- ----- Basin wide percent of average 94 105 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.1 10.7 141 15.2 13.3 114 DIVIDE PEAK 8880 20.8 16.9 123 21.2 18.2 116 OLD BATTLE 10000 29.1 28.2 103 33.3 30.4 110 SANDSTONE RS 8150 15.9 13.6 117 19.6 16.7 117 WHISKEY PARK 8950 29.1 26.0 112 30.7 24.9 123 ----- ----- Basin wide percent of average 115 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.2 12.9 87 11.3 12.0 94 BLIND BULL SUM 8650 21.2 24.8 85 15.8 20.0 79 EAST RIM DIVIDE 7930 7.5 11.8 64 9.6 10.8 89 ELKHART PARK G.S. 9400 9.6 11.9 81 10.5 11.6 91 GROS VENTRE SUMMIT 8750 11.3 12.4 91 12.5 11.4 110 GUNSIGHT PASS 9820 10.6 -M * 12.4 -M * KENDALL R.S. 7740 10.0 13.4 75 11.8 13.3 89 LOOMIS PARK 8240 13.6 15.6 87 15.3 15.7 97 NEW FORK LAKE 8340 8.2 10.2 80 8.3 10.1 82 SNIDER BASIN 8060 11.3 13.2 86 12.3 14.5 85 SPRING CREEK DIVIDE 9000 19.2 23.6 81 19.9 23.7 84 TRIPLE PEAK 8500 20.9 22.3 94 24.1 22.1 109 ----- ----- Basin wide percent of average 84 92 LOWER GREEN RIVER HAMS FORK 7840 10.5 11.8 89 8.7 11.0 79 HEWINTA 9519 12.2 9.9 123 14.9 12.4 120 HICKERSON PARK 9145 6.6 6.2 106 8.8 6.7 131 HOLE-IN-ROCK 9150 5.6 6.1 92 8.8 6.2 142 INDIAN CREEK 9425 20.2 24.1 84 -M 22.4 * KELLEY R.S. 8180 12.4 15.0 83 15.0 18.1 83 STEEL CREEK PARK 10200 13.3 13.6 98 16.5 13.7 120 ----- ----- Basin wide percent of average 93 107 UPPER BEAR RIVER BUG LAKE 7950 16.0 18.4 87 15.4 17.1 90 HAYDEN FORK 9212 17.6 14.3 123 21.2 18.2 116 KELLEY R.S. 8180 12.4 15.0 83 15.0 18.1 83 LILY LAKE 9156 13.4 11.5 117 16.0 15.1 106 MONTE CRISTO 8960 25.2 26.6 95 23.9 22.5 106 SALT RIVER SUMMIT 7760 11.8 12.9 91 13.6 16.7 81 TRIAL LAKE 9992 18.9 22.2 85 22.0 21.9 100 ----- ----- Basin wide percent of average 95 98 ----------------------------------------------------------------------------- -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.