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 15 , 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 17.3 * 23.2 20.1 115 COTTONWOOD CREEK 7670 21.6 21.4 101 22.4 25.1 89 GRAND TARGHEE 9260 44.3 -M * 31.1 -M * GRANITE CREEK 6770 15.9 17.9 89 21.0 18.8 112 GRASSY LAKE 7265 29.8 32.8 91 35.3 33.6 105 GROS VENTRE SUMMIT 8750 11.5 12.9 89 12.6 11.8 107 GUNSIGHT PASS 9820 10.7 -M * 12.6 -M * LEWIS LAKE DIVIDE 7850 28.8 32.8 88 32.8 34.3 96 PHILLIPS BENCH 8200 28.8 26.5 109 30.8 26.9 114 SALT RIVER SUMMIT 7760 12.1 13.4 90 14.0 17.2 81 SNAKE RIVER STATION 6920 16.5 18.3 90 24.2 20.9 116 SPRING CREEK DIVIDE 9000 19.7 24.4 81 20.3 24.4 83 THUMB DIVIDE 7980 15.1 17.4 87 17.5 17.5 100 TOGWOTEE PASS 9580 24.1 22.7 106 26.3 22.6 116 TWO OCEAN PLATEAU 9240 31.9 25.6 125 23.4 25.6 91 WILLOW CREEK 8380 28.5 28.0 102 33.7 29.6 114 ----- ----- Basin wide percent of average 97 103 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 22.8 21.9 104 21.4 18.6 115 BLACK BEAR 8170 41.2 36.4 113 -M 36.9 * CANYON 7870 15.5 12.7 122 18.8 14.2 132 FISHER CREEK 9100 37.1 32.3 115 -M 33.5 * MADISON PLATEAU 7750 26.8 23.2 116 29.4 24.3 121 NORTHEAST ENTRANCE 7350 8.6 10.6 81 12.0 11.7 103 PARKER PEAK 9400 23.2 19.9 117 -M 14.9 * SYLVAN LAKE 8420 18.9 20.6 92 23.5 19.4 121 THUMB DIVIDE 7980 15.1 17.4 87 17.5 17.5 100 TWO OCEAN PLATEAU 9240 31.9 25.6 125 23.4 25.6 91 WHISKEY CREEK 6800 16.8 15.9 106 23.0 19.2 120 WHITE MILL 8700 24.2 22.3 109 23.8 24.9 96 WOLVERINE 7650 9.6 11.3 85 11.9 12.0 99 ----- ----- Basin wide percent of average 108 109 WIND RIVER BURROUGHS CREEK 8750 13.6 13.5 101 16.5 14.9 111 COLD SPRINGS 9630 5.6 8.0 70 8.7 9.2 95 DEER PARK 9700 13.5 15.3 88 17.6 19.8 89 HOBBS PARK 10100 12.0 13.1 92 12.2 11.0 111 LITTLE WARM 9370 8.3 10.6 78 11.7 11.9 98 SOUTH PASS 9040 12.7 15.4 82 15.7 16.5 95 ST. LAWRENCE ALT 8620 6.2 6.6 94 7.7 7.7 100 TOGWOTEE PASS 9580 24.1 22.7 106 26.3 22.6 116 TOWNSEND CREEK 8700 7.7 7.6 101 11.1 9.9 112 ----- ----- Basin wide percent of average 92 103 BIGHORN BASIN BALD MTN. 9380 15.0 17.6 85 13.8 15.5 89 BEAR TRAP MEADOW 8200 8.1 4.9 165 8.2 7.1 115 BLACKWATER 9780 21.6 22.4 96 20.1 18.7 107 BONE SPRINGS DIV 9350 15.1 14.4 105 15.6 12.9 121 EVENING STAR 9200 26.2 27.3 96 29.5 23.5 126 GRAVE SPRINGS 8550 9.0 8.2 110 9.7 8.7 111 KIRWIN 9550 10.6 10.1 105 12.7 10.1 126 MARQUETTE 8760 5.0 7.6 66 8.4 8.3 101 MIDDLE POWDER 7760 10.2 10.1 101 8.5 10.7 79 OWL CREEK 8975 5.0 4.7 106 6.1 4.9 124 POWDER RIVER PASS 9480 10.9 9.7 112 13.0 11.0 118 SHELL CREEK 9580 14.1 13.0 108 13.7 11.8 116 SYLVAN LAKE 8420 18.9 20.6 92 23.5 19.4 121 SYLVAN ROAD 7120 10.3 12.2 84 19.0 16.5 115 TIMBER CREEK 7950 3.7 4.9 76 7.5 6.2 121 YOUNTS PEAK 8350 14.8 15.7 94 15.8 14.8 107 ----- ----- Basin wide percent of average 98 112 SHOSHONE RIVER BLACKWATER 9780 21.6 22.4 96 20.1 18.7 107 EVENING STAR 9200 26.2 27.3 96 29.5 23.5 126 KIRWIN 9550 10.6 10.1 105 12.7 10.1 126 MARQUETTE 8760 5.0 7.6 66 8.4 8.3 101 SYLVAN LAKE 8420 18.9 20.6 92 23.5 19.4 121 SYLVAN ROAD 7120 10.3 12.2 84 19.0 16.5 115 YOUNTS PEAK 8350 14.8 15.7 94 15.8 14.8 107 ----- ----- Basin wide percent of average 93 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 8.1 4.9 165 8.2 7.1 115 BIG GOOSE 7990 7.3 8.7 84 10.1 7.4 136 BONE SPRINGS DIV 9350 15.1 14.4 105 15.6 12.9 121 BURGESS JUNCTION 7880 10.8 10.0 108 12.2 10.6 115 CLOUD PEAK RESERVOIR 9860 13.7 11.4 120 13.2 10.9 121 DOME LAKE 8880 9.5 10.5 90 12.7 11.3 112 GRAVE SPRINGS 8550 9.0 8.2 110 9.7 8.7 111 HANSEN SAWMILL 8360 5.7 5.8 98 7.8 7.1 110 MIDDLE POWDER 7760 10.2 10.1 101 8.5 10.7 79 POWDER RIVER PASS 9480 10.9 9.7 112 13.0 11.0 118 SUCKER CREEK 8880 12.4 10.1 123 14.3 11.7 122 TIE CREEK 6870 6.6 5.8 114 10.6 8.6 123 ----- ----- Basin wide percent of average 109 115 BELLE FOURCHE BLIND PARK 6890 6.8 8.3 82 9.6 10.1 95 COLE CANYON 5910 5.4 6.3 86 6.6 6.0 110 NORTH RAPID CREEK 6130 7.6 7.5 101 7.7 8.0 96 ----- ----- Basin wide percent of average 90 99 UPPER N. PLATTE RIVER COLUMBINE 9160 25.1 23.8 105 26.1 22.9 114 DIVIDE PEAK 8880 21.0 17.7 119 21.2 18.8 113 ELK RIVER 8700 23.7 17.7 134 21.6 17.7 122 JOE WRIGHT 10120 21.0 19.0 111 24.4 22.2 110 NORTH FRENCH CREEK 10130 28.0 25.5 110 27.0 22.3 121 OLD BATTLE 10000 30.0 29.2 103 33.5 31.5 106 SAGE CREEK BASIN 7850 16.5 10.3 160 16.8 10.9 154 SOUTH BRUSH CREEK 8440 12.6 11.6 109 15.7 14.6 108 TOWER 10500 39.3 41.2 95 -M 35.0 * WEBBER SPRINGS 9250 23.7 24.3 98 27.4 24.2 113 WILLOW CREEK PASS 9540 14.2 10.6 134 14.2 11.4 125 ----- ----- Basin wide percent of average 110 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 18.8 21.0 90 19.5 19.5 100 CASPER MTN. 7900 12.0 12.5 96 13.0 12.4 105 DEADMAN HILL 10220 15.4 14.4 107 15.8 14.9 106 DEER PARK 9700 13.5 15.3 88 17.6 19.8 89 LAPRELE CREEK 8375 7.1 10.0 71 9.7 11.1 87 RENO HILL 8400 12.1 12.0 101 13.8 12.9 107 ROACH 9700 17.2 15.3 112 19.8 16.7 119 SAND LAKE 10050 25.1 28.7 87 24.9 21.4 116 SOUTH PASS 9040 12.7 15.4 82 15.7 16.5 95 WINDY PEAK 7900 7.1 7.2 99 8.6 9.3 92 ----- ----- Basin wide percent of average 93 103 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.7 11.2 140 15.5 13.9 112 DIVIDE PEAK 8880 21.0 17.7 119 21.2 18.8 113 OLD BATTLE 10000 30.0 29.2 103 33.5 31.5 106 SANDSTONE RS 8150 16.2 14.2 114 20.0 17.2 116 WHISKEY PARK 8950 -M 27.3 * 31.0 25.9 120 ----- ----- Basin wide percent of average 115 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.4 13.3 86 11.4 12.3 93 BLIND BULL SUM 8650 21.9 25.7 85 16.1 20.6 78 EAST RIM DIVIDE 7930 7.8 12.1 64 9.9 11.2 88 ELKHART PARK G.S. 9400 9.9 12.3 80 10.5 12.1 87 GROS VENTRE SUMMIT 8750 11.5 12.9 89 12.6 11.8 107 GUNSIGHT PASS 9820 10.7 -M * 12.6 -M * KENDALL R.S. 7740 10.3 13.9 74 11.9 13.6 88 LOOMIS PARK 8240 13.9 16.2 86 15.6 16.1 97 NEW FORK LAKE 8340 8.5 10.5 81 8.4 10.4 81 SNIDER BASIN 8060 11.5 13.6 85 12.4 14.9 83 SPRING CREEK DIVIDE 9000 19.7 24.4 81 20.3 24.4 83 TRIPLE PEAK 8500 21.5 23.1 93 24.6 22.8 108 ----- ----- Basin wide percent of average 83 90 LOWER GREEN RIVER HAMS FORK 7840 10.8 12.2 89 8.8 11.3 78 HEWINTA 9519 13.2 10.4 127 15.6 12.9 121 HICKERSON PARK 9145 6.8 6.5 105 9.0 6.9 130 HOLE-IN-ROCK 9150 6.2 6.4 97 9.5 6.5 146 INDIAN CREEK 9425 21.0 25.1 84 -M 23.1 * KELLEY R.S. 8180 12.8 15.6 82 15.5 18.6 83 STEEL CREEK PARK 10200 14.2 14.2 100 17.3 14.3 121 ----- ----- Basin wide percent of average 94 107 UPPER BEAR RIVER BUG LAKE 7950 16.6 19.1 87 15.5 17.7 88 HAYDEN FORK 9212 18.5 14.9 124 21.5 18.9 114 KELLEY R.S. 8180 12.8 15.6 82 15.5 18.6 83 LILY LAKE 9156 14.0 11.9 118 16.3 15.7 104 MONTE CRISTO 8960 26.2 27.6 95 24.1 23.2 104 SALT RIVER SUMMIT 7760 12.1 13.4 90 14.0 17.2 81 TRIAL LAKE 9992 20.1 23.0 87 22.2 22.7 98 ----- ----- Basin wide percent of average 96 96 ----------------------------------------------------------------------------- -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.