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 9 , 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 16.8 * 22.6 19.5 116 COTTONWOOD CREEK 7670 20.8 20.1 103 21.9 24.2 90 GRAND TARGHEE 9260 41.5 -M * 27.9 -M * GRANITE CREEK 6770 15.1 17.2 88 20.4 18.2 112 GRASSY LAKE 7265 27.8 31.4 89 35.2 32.5 108 GROS VENTRE SUMMIT 8750 11.3 12.3 92 12.6 11.4 111 GUNSIGHT PASS 9820 10.5 -M * 12.4 -M * LEWIS LAKE DIVIDE 7850 27.2 31.5 86 31.8 33.1 96 PHILLIPS BENCH 8200 27.2 25.4 107 29.8 25.9 115 SALT RIVER SUMMIT 7760 11.7 12.9 91 13.7 16.6 83 SNAKE RIVER STATION 6920 15.1 17.6 86 23.2 20.3 114 SPRING CREEK DIVIDE 9000 19.3 23.5 82 19.9 23.6 84 THUMB DIVIDE 7980 14.6 16.6 88 17.1 16.9 101 TOGWOTEE PASS 9580 23.4 21.9 107 25.6 21.7 118 TWO OCEAN PLATEAU 9240 30.9 24.6 126 23.3 24.7 94 WILLOW CREEK 8380 27.5 26.9 102 33.0 28.5 116 ----- ----- Basin wide percent of average 96 104 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 22.0 21.2 104 20.8 18.0 116 BLACK BEAR 8170 40.3 35.3 114 -M 35.3 * CANYON 7870 14.9 12.3 121 18.4 13.7 134 FISHER CREEK 9100 36.7 31.4 117 -M 32.3 * MADISON PLATEAU 7750 26.2 22.4 117 28.9 23.4 124 NORTHEAST ENTRANCE 7350 8.2 10.4 79 11.7 11.3 104 PARKER PEAK 9400 22.3 19.3 116 -M 14.4 * SYLVAN LAKE 8420 18.2 20.0 91 22.8 18.7 122 THUMB DIVIDE 7980 14.6 16.6 88 17.1 16.9 101 TWO OCEAN PLATEAU 9240 30.9 24.6 126 23.3 24.7 94 WHISKEY CREEK 6800 16.5 15.5 106 22.6 18.4 123 WHITE MILL 8700 23.7 21.7 109 -M 23.9 * WOLVERINE 7650 9.0 11.2 80 11.3 11.6 97 ----- ----- Basin wide percent of average 108 113 WIND RIVER BURROUGHS CREEK 8750 13.4 13.3 101 16.2 14.4 112 COLD SPRINGS 9630 5.5 7.8 71 8.6 8.9 97 DEER PARK 9700 13.1 14.9 88 17.6 19.0 93 HOBBS PARK 10100 11.7 12.7 92 12.1 10.5 115 LITTLE WARM 9370 8.1 10.2 79 11.5 11.5 100 SOUTH PASS 9040 12.4 15.0 83 15.4 15.8 97 ST. LAWRENCE ALT 8620 6.1 6.4 95 7.6 7.4 103 TOGWOTEE PASS 9580 23.4 21.9 107 25.6 21.7 118 TOWNSEND CREEK 8700 7.7 7.4 104 10.9 9.4 116 ----- ----- Basin wide percent of average 93 106 BIGHORN BASIN BALD MTN. 9380 14.6 16.9 86 13.5 14.9 91 BEAR TRAP MEADOW 8200 7.5 4.7 160 7.6 6.8 112 BLACKWATER 9780 21.1 21.7 97 19.7 18.1 109 BONE SPRINGS DIV 9350 14.7 13.9 106 15.3 12.3 124 EVENING STAR 9200 25.2 26.5 95 -M 22.8 * GRAVE SPRINGS 8550 8.3 7.8 106 9.1 8.3 110 KIRWIN 9550 10.3 9.8 105 12.6 9.7 130 MARQUETTE 8760 4.6 7.2 64 8.2 7.9 104 MIDDLE POWDER 7760 9.9 9.6 103 8.1 10.2 79 OWL CREEK 8975 4.7 4.5 104 5.8 4.7 123 POWDER RIVER PASS 9480 10.7 9.3 115 12.7 10.5 121 SHELL CREEK 9580 13.7 12.5 110 13.3 11.4 117 SYLVAN LAKE 8420 18.2 20.0 91 22.8 18.7 122 SYLVAN ROAD 7120 10.0 12.0 83 18.6 16.1 116 TIMBER CREEK 7950 3.4 4.5 76 6.9 5.8 119 YOUNTS PEAK 8350 14.5 15.4 94 15.5 14.3 108 ----- ----- Basin wide percent of average 98 112 SHOSHONE RIVER BLACKWATER 9780 21.1 21.7 97 19.7 18.1 109 EVENING STAR 9200 25.2 26.5 95 -M 22.8 * KIRWIN 9550 10.3 9.8 105 12.6 9.7 130 MARQUETTE 8760 4.6 7.2 64 8.2 7.9 104 SYLVAN LAKE 8420 18.2 20.0 91 22.8 18.7 122 SYLVAN ROAD 7120 10.0 12.0 83 18.6 16.1 116 YOUNTS PEAK 8350 14.5 15.4 94 15.5 14.3 108 ----- ----- Basin wide percent of average 92 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 7.5 4.7 160 7.6 6.8 112 BIG GOOSE 7990 7.1 8.2 87 10.0 7.1 141 BONE SPRINGS DIV 9350 14.7 13.9 106 15.3 12.3 124 BURGESS JUNCTION 7880 10.6 9.6 110 12.1 10.1 120 CLOUD PEAK RESERVOIR 9860 13.4 10.9 123 13.2 10.4 127 DOME LAKE 8880 9.1 10.1 90 12.6 10.8 117 GRAVE SPRINGS 8550 8.3 7.8 106 9.1 8.3 110 HANSEN SAWMILL 8360 5.4 5.5 98 7.6 6.7 113 MIDDLE POWDER 7760 9.9 9.6 103 8.1 10.2 79 POWDER RIVER PASS 9480 10.7 9.3 115 12.7 10.5 121 SUCKER CREEK 8880 12.2 9.8 124 14.1 11.2 126 TIE CREEK 6870 6.6 5.5 120 10.5 8.3 127 ----- ----- Basin wide percent of average 110 118 BELLE FOURCHE BLIND PARK 6890 6.8 7.9 86 9.6 9.7 99 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 23.1 103 25.2 22.1 114 DIVIDE PEAK 8880 20.7 16.7 124 21.1 18.1 117 ELK RIVER 8700 22.7 17.1 133 21.3 17.0 125 JOE WRIGHT 10120 20.7 18.2 114 24.2 21.3 114 NORTH FRENCH CREEK 10130 27.2 24.2 112 26.5 21.4 124 OLD BATTLE 10000 29.2 28.0 104 33.2 30.2 110 SAGE CREEK BASIN 7850 16.3 9.7 168 16.5 10.5 157 SOUTH BRUSH CREEK 8440 12.4 10.9 114 15.6 14.0 111 TOWER 10500 -M 39.6 * -M 33.7 * WEBBER SPRINGS 9250 22.8 23.0 99 26.8 23.3 115 WILLOW CREEK PASS 9540 13.9 10.2 136 14.0 11.0 127 ----- ----- Basin wide percent of average 116 119 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 18.1 20.1 90 19.1 18.6 103 CASPER MTN. 7900 11.6 12.0 97 12.6 11.8 107 DEADMAN HILL 10220 15.2 13.7 111 15.7 14.2 111 DEER PARK 9700 13.1 14.9 88 17.6 19.0 93 LAPRELE CREEK 8375 6.6 9.5 69 9.3 10.7 87 RENO HILL 8400 11.7 11.3 104 13.6 12.2 111 ROACH 9700 17.0 14.7 116 19.5 15.9 123 SAND LAKE 10050 24.2 27.1 89 24.1 20.4 118 SOUTH PASS 9040 12.4 15.0 83 15.4 15.8 97 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 10.6 142 15.2 13.2 115 DIVIDE PEAK 8880 20.7 16.7 124 21.1 18.1 117 OLD BATTLE 10000 29.2 28.0 104 33.2 30.2 110 SANDSTONE RS 8150 15.8 13.5 117 19.5 16.6 117 WHISKEY PARK 8950 29.1 25.8 113 30.7 24.8 124 ----- ----- Basin wide percent of average 116 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.2 12.8 87 11.2 11.9 94 BLIND BULL SUM 8650 21.2 24.6 86 15.8 19.9 79 EAST RIM DIVIDE 7930 7.5 11.7 64 9.6 10.8 89 ELKHART PARK G.S. 9400 9.6 11.8 81 10.4 11.6 90 GROS VENTRE SUMMIT 8750 11.3 12.3 92 12.6 11.4 111 GUNSIGHT PASS 9820 10.5 -M * 12.4 -M * KENDALL R.S. 7740 9.9 13.3 74 11.8 13.2 89 LOOMIS PARK 8240 13.5 15.5 87 15.2 15.6 97 NEW FORK LAKE 8340 8.2 10.1 81 8.3 10.1 82 SNIDER BASIN 8060 11.3 13.1 86 12.3 14.4 85 SPRING CREEK DIVIDE 9000 19.3 23.5 82 19.9 23.6 84 TRIPLE PEAK 8500 20.9 22.1 95 24.0 21.9 110 ----- ----- Basin wide percent of average 84 92 LOWER GREEN RIVER HAMS FORK 7840 10.5 11.8 89 8.7 10.9 80 HEWINTA 9519 12.2 9.8 124 15.0 12.3 122 HICKERSON PARK 9145 6.7 6.2 108 8.9 6.6 135 HOLE-IN-ROCK 9150 5.6 6.1 92 8.9 6.2 144 INDIAN CREEK 9425 20.1 23.9 84 -M 22.2 * KELLEY R.S. 8180 12.4 14.9 83 15.0 18.0 83 STEEL CREEK PARK 10200 13.3 13.5 99 16.6 13.7 121 ----- ----- Basin wide percent of average 94 108 UPPER BEAR RIVER BUG LAKE 7950 16.0 18.3 87 15.3 17.0 90 HAYDEN FORK 9212 17.6 14.1 125 21.2 18.1 117 KELLEY R.S. 8180 12.4 14.9 83 15.0 18.0 83 LILY LAKE 9156 13.4 11.5 117 16.0 15.0 107 MONTE CRISTO 8960 25.4 26.4 96 23.8 22.3 107 SALT RIVER SUMMIT 7760 11.7 12.9 91 13.7 16.6 83 TRIAL LAKE 9992 18.9 22.0 86 21.9 21.8 100 ----- ----- 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.