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 WEDNESDAY: MARCH 5 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.9 16.4 97 22.5 19.0 118 COTTONWOOD CREEK 7670 20.7 19.3 107 21.9 23.6 93 GRAND TARGHEE 9260 41.3 -M * 27.8 -M * GRANITE CREEK 6770 15.1 16.6 91 20.3 17.9 113 GRASSY LAKE 7265 27.7 30.5 91 35.0 31.8 110 GROS VENTRE SUMMIT 8750 11.4 11.9 96 12.5 11.1 113 GUNSIGHT PASS 9820 10.6 -M * 12.3 -M * LEWIS LAKE DIVIDE 7850 27.1 30.6 89 31.5 32.4 97 PHILLIPS BENCH 8200 27.1 24.7 110 29.7 25.3 117 SALT RIVER SUMMIT 7760 11.7 12.5 94 13.6 16.2 84 SNAKE RIVER STATION 6920 15.0 17.1 88 22.7 19.9 114 SPRING CREEK DIVIDE 9000 19.3 22.8 85 19.7 23.0 86 THUMB DIVIDE 7980 14.4 16.0 90 16.9 16.5 102 TOGWOTEE PASS 9580 23.2 21.3 109 25.4 21.2 120 TWO OCEAN PLATEAU 9240 30.5 24.0 127 23.3 24.1 97 WILLOW CREEK 8380 27.3 26.1 105 32.6 27.8 117 ----- ----- Basin wide percent of average 99 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 21.7 20.4 106 20.6 17.5 118 BLACK BEAR 8170 40.2 34.3 117 -M 34.3 * CANYON 7870 14.9 11.8 126 18.4 13.3 138 FISHER CREEK 9100 36.5 30.5 120 -M 31.5 * MADISON PLATEAU 7750 26.0 21.8 119 28.8 22.8 126 NORTHEAST ENTRANCE 7350 8.1 10.0 81 11.6 11.1 105 PARKER PEAK 9400 22.2 18.8 118 -M 14.1 * SYLVAN LAKE 8420 18.1 19.3 94 22.6 18.3 123 THUMB DIVIDE 7980 14.4 16.0 90 16.9 16.5 102 TWO OCEAN PLATEAU 9240 30.5 24.0 127 23.3 24.1 97 WHISKEY CREEK 6800 16.4 15.0 109 22.4 17.9 125 WHITE MILL 8700 23.4 21.0 111 -M 23.3 * WOLVERINE 7650 8.9 10.9 82 11.1 11.4 97 ----- ----- Basin wide percent of average 111 115 WIND RIVER BURROUGHS CREEK 8750 13.2 13.0 102 16.1 14.1 114 COLD SPRINGS 9630 5.5 7.5 73 8.6 8.6 100 DEER PARK 9700 12.7 14.5 88 16.9 18.4 92 HOBBS PARK 10100 11.6 12.3 94 11.3 10.2 111 LITTLE WARM 9370 8.1 9.9 82 11.5 11.2 103 SOUTH PASS 9040 12.1 14.6 83 15.0 15.4 97 ST. LAWRENCE ALT 8620 6.0 6.2 97 7.5 7.2 104 TOGWOTEE PASS 9580 23.2 21.3 109 25.4 21.2 120 TOWNSEND CREEK 8700 7.6 7.2 106 10.7 9.2 116 ----- ----- Basin wide percent of average 94 106 BIGHORN BASIN BALD MTN. 9380 14.0 16.5 85 13.0 14.5 90 BEAR TRAP MEADOW 8200 7.2 4.5 160 7.5 6.6 114 BLACKWATER 9780 20.9 21.0 100 19.3 17.7 109 BONE SPRINGS DIV 9350 14.4 13.6 106 14.9 11.9 125 EVENING STAR 9200 25.1 25.8 97 -M 22.3 * GRAVE SPRINGS 8550 8.1 7.6 107 8.9 8.0 111 KIRWIN 9550 10.2 9.5 107 12.5 9.4 133 MARQUETTE 8760 4.5 7.1 63 7.8 7.7 101 MIDDLE POWDER 7760 9.7 9.3 104 7.9 9.9 80 OWL CREEK 8975 4.6 4.3 107 5.7 4.5 127 POWDER RIVER PASS 9480 10.3 9.0 114 12.3 10.3 119 SHELL CREEK 9580 13.4 12.2 110 13.0 11.1 117 SYLVAN LAKE 8420 18.1 19.3 94 22.6 18.3 123 SYLVAN ROAD 7120 9.9 11.8 84 18.6 15.9 117 TIMBER CREEK 7950 3.3 4.3 77 6.9 5.6 123 YOUNTS PEAK 8350 14.3 15.1 95 15.2 13.9 109 ----- ----- Basin wide percent of average 98 113 SHOSHONE RIVER BLACKWATER 9780 20.9 21.0 100 19.3 17.7 109 EVENING STAR 9200 25.1 25.8 97 -M 22.3 * KIRWIN 9550 10.2 9.5 107 12.5 9.4 133 MARQUETTE 8760 4.5 7.1 63 7.8 7.7 101 SYLVAN LAKE 8420 18.1 19.3 94 22.6 18.3 123 SYLVAN ROAD 7120 9.9 11.8 84 18.6 15.9 117 YOUNTS PEAK 8350 14.3 15.1 95 15.2 13.9 109 ----- ----- Basin wide percent of average 94 116 POWDER-TONGUE BEAR TRAP MEADOW 8200 7.2 4.5 160 7.5 6.6 114 BIG GOOSE 7990 6.8 8.0 85 9.5 6.9 138 BONE SPRINGS DIV 9350 14.4 13.6 106 14.9 11.9 125 BURGESS JUNCTION 7880 10.2 9.3 110 11.7 9.8 119 CLOUD PEAK RESERVOIR 9860 12.9 10.4 124 12.5 10.1 124 DOME LAKE 8880 8.7 9.8 89 12.1 10.5 115 GRAVE SPRINGS 8550 8.1 7.6 107 8.9 8.0 111 HANSEN SAWMILL 8360 5.2 5.4 96 7.4 6.5 114 MIDDLE POWDER 7760 9.7 9.3 104 7.9 9.9 80 POWDER RIVER PASS 9480 10.3 9.0 114 12.3 10.3 119 SUCKER CREEK 8880 11.7 9.5 123 13.3 10.8 123 TIE CREEK 6870 6.2 5.2 119 10.2 8.1 126 ----- ----- Basin wide percent of average 110 117 BELLE FOURCHE BLIND PARK 6890 6.4 7.5 85 9.1 9.5 96 COLE CANYON 5910 5.3 5.9 90 6.4 5.6 114 NORTH RAPID CREEK 6130 7.3 7.0 104 7.4 7.6 97 ----- ----- Basin wide percent of average 93 101 UPPER N. PLATTE RIVER COLUMBINE 9160 22.8 22.5 101 24.6 21.5 114 DIVIDE PEAK 8880 20.7 16.2 128 20.7 17.6 118 ELK RIVER 8700 22.3 16.6 134 21.0 16.6 127 JOE WRIGHT 10120 20.3 17.7 115 23.9 20.8 115 NORTH FRENCH CREEK 10130 26.4 23.4 113 25.9 20.8 125 OLD BATTLE 10000 28.8 27.1 106 33.0 29.3 113 SAGE CREEK BASIN 7850 16.2 9.4 172 16.5 10.2 162 SOUTH BRUSH CREEK 8440 12.0 10.5 114 15.0 13.7 109 TOWER 10500 -M 38.6 * -M 32.9 * WEBBER SPRINGS 9250 22.7 22.2 102 26.5 22.7 117 WILLOW CREEK PASS 9540 13.7 9.9 138 13.9 10.7 130 ----- ----- Basin wide percent of average 117 120 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 17.8 19.5 91 18.6 18.0 103 CASPER MTN. 7900 11.4 11.6 98 12.5 11.4 110 DEADMAN HILL 10220 15.0 13.3 113 15.2 13.7 111 DEER PARK 9700 12.7 14.5 88 16.9 18.4 92 LAPRELE CREEK 8375 6.3 9.2 68 9.0 10.4 87 RENO HILL 8400 11.6 10.8 107 13.3 11.9 112 ROACH 9700 16.8 14.3 117 19.3 15.4 125 SAND LAKE 10050 23.9 26.1 92 23.9 19.9 120 SOUTH PASS 9040 12.1 14.6 83 15.0 15.4 97 WINDY PEAK 7900 6.9 6.3 110 8.4 8.7 97 ----- ----- Basin wide percent of average 96 106 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.1 10.1 150 15.1 12.7 119 DIVIDE PEAK 8880 20.7 16.2 128 20.7 17.6 118 OLD BATTLE 10000 28.8 27.1 106 33.0 29.3 113 SANDSTONE RS 8150 15.7 13.0 121 19.4 16.1 120 WHISKEY PARK 8950 28.8 24.8 116 30.3 24.1 126 ----- ----- Basin wide percent of average 120 119 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.2 12.5 90 11.3 11.7 97 BLIND BULL SUM 8650 21.2 23.8 89 15.8 19.5 81 EAST RIM DIVIDE 7930 7.5 11.4 66 9.6 10.5 91 ELKHART PARK G.S. 9400 9.5 11.5 83 10.3 11.3 91 GROS VENTRE SUMMIT 8750 11.4 11.9 96 12.5 11.1 113 GUNSIGHT PASS 9820 10.6 -M * 12.3 -M * KENDALL R.S. 7740 9.9 12.8 77 11.7 12.9 91 LOOMIS PARK 8240 13.5 15.0 90 15.0 15.2 99 NEW FORK LAKE 8340 8.2 9.9 83 8.1 9.9 82 SNIDER BASIN 8060 11.2 12.8 87 12.2 14.1 87 SPRING CREEK DIVIDE 9000 19.3 22.8 85 19.7 23.0 86 TRIPLE PEAK 8500 20.8 21.5 97 24.0 21.3 113 ----- ----- Basin wide percent of average 87 94 LOWER GREEN RIVER HAMS FORK 7840 10.4 11.4 91 8.6 10.7 80 HEWINTA 9519 11.6 9.5 122 14.6 12.0 122 HICKERSON PARK 9145 6.3 6.0 105 8.5 6.4 133 HOLE-IN-ROCK 9150 5.4 5.9 92 8.7 6.0 145 INDIAN CREEK 9425 19.9 23.1 86 -M 21.7 * KELLEY R.S. 8180 12.4 14.5 86 15.0 17.6 85 STEEL CREEK PARK 10200 12.8 13.1 98 16.2 13.3 122 ----- ----- Basin wide percent of average 94 108 UPPER BEAR RIVER BUG LAKE 7950 15.8 17.7 89 15.1 16.6 91 HAYDEN FORK 9212 17.1 13.6 126 20.7 17.6 118 KELLEY R.S. 8180 12.4 14.5 86 15.0 17.6 85 LILY LAKE 9156 13.1 11.1 118 15.8 14.7 107 MONTE CRISTO 8960 25.0 25.6 98 23.6 21.8 108 SALT RIVER SUMMIT 7760 11.7 12.5 94 13.6 16.2 84 TRIAL LAKE 9992 18.7 21.3 88 21.6 21.2 102 ----- ----- Basin wide percent of average 98 100 ----------------------------------------------------------------------------- -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.