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 29 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.4 18.1 113 27.1 21.4 127 COTTONWOOD CREEK 7670 25.2 23.9 105 25.6 27.3 94 GRAND TARGHEE 9260 49.5 -M * 34.4 -M * GRANITE CREEK 6770 18.8 18.7 101 23.5 19.9 118 GRASSY LAKE 7265 36.8 35.7 103 -M 35.9 * GROS VENTRE SUMMIT 8750 13.2 14.2 93 14.2 12.8 111 GUNSIGHT PASS 9820 12.6 -M * 14.6 -M * LEWIS LAKE DIVIDE 7850 35.7 35.4 101 -M 36.7 * PHILLIPS BENCH 8200 33.7 28.8 117 34.8 29.0 120 SALT RIVER SUMMIT 7760 13.7 14.4 95 15.9 18.7 85 SNAKE RIVER STATION 6920 21.1 19.2 110 28.2 22.2 127 SPRING CREEK DIVIDE 9000 23.0 26.5 87 24.1 26.3 92 THUMB DIVIDE 7980 18.8 19.0 99 20.7 18.8 110 TOGWOTEE PASS 9580 27.4 24.8 110 29.6 24.5 121 TWO OCEAN PLATEAU 9240 -M 27.9 * -M 27.6 * WILLOW CREEK 8380 32.7 30.2 108 38.0 32.0 119 ----- ----- Basin wide percent of average 104 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 25.6 23.3 110 24.1 20.0 120 BLACK BEAR 8170 45.5 39.2 116 -M 40.3 * CANYON 7870 17.7 13.7 129 20.6 15.4 134 FISHER CREEK 9100 41.6 34.9 119 -M 36.2 * MADISON PLATEAU 7750 29.9 25.1 119 32.0 26.6 120 NORTHEAST ENTRANCE 7350 -M 11.3 * -M 12.6 * PARKER PEAK 9400 26.7 21.6 124 -M 16.1 * SYLVAN LAKE 8420 21.7 22.5 96 26.3 20.8 126 THUMB DIVIDE 7980 18.8 19.0 99 20.7 18.8 110 TWO OCEAN PLATEAU 9240 -M 27.9 * -M 27.6 * WHISKEY CREEK 6800 18.6 17.2 108 24.7 20.9 118 WHITE MILL 8700 28.0 24.2 116 -M 26.9 * WOLVERINE 7650 11.2 11.5 97 14.0 12.7 110 ----- ----- Basin wide percent of average 113 120 WIND RIVER BURROUGHS CREEK 8750 16.3 14.6 112 19.1 16.1 119 COLD SPRINGS 9630 6.9 8.8 78 10.2 10.4 98 DEER PARK 9700 15.6 16.8 93 20.0 21.6 93 HOBBS PARK 10100 14.1 14.7 96 14.1 12.5 113 LITTLE WARM 9370 10.1 11.8 86 13.8 13.2 105 SOUTH PASS 9040 14.5 16.6 87 17.3 18.2 95 ST. LAWRENCE ALT 8620 6.7 7.2 93 8.4 8.7 97 TOGWOTEE PASS 9580 27.4 24.8 110 29.6 24.5 121 TOWNSEND CREEK 8700 8.8 8.6 102 12.0 11.4 105 ----- ----- Basin wide percent of average 97 106 BIGHORN BASIN BALD MTN. 9380 17.0 19.5 87 15.5 17.1 91 BEAR TRAP MEADOW 8200 9.2 5.2 177 9.3 8.0 116 BLACKWATER 9780 25.8 24.4 106 23.4 20.4 115 BONE SPRINGS DIV 9350 17.5 16.0 109 17.5 14.4 122 EVENING STAR 9200 30.8 29.7 104 33.7 25.1 134 GRAVE SPRINGS 8550 9.7 9.2 105 10.2 9.5 107 KIRWIN 9550 12.3 11.2 110 14.3 11.1 129 MARQUETTE 8760 6.6 8.8 75 9.8 9.5 103 MIDDLE POWDER 7760 11.5 11.5 100 9.3 12.1 77 OWL CREEK 8975 5.6 5.5 102 6.7 5.7 118 POWDER RIVER PASS 9480 12.6 10.7 118 14.7 12.1 121 SHELL CREEK 9580 15.9 14.5 110 15.3 13.1 117 SYLVAN LAKE 8420 21.7 22.5 96 26.3 20.8 126 SYLVAN ROAD 7120 12.8 12.9 99 21.3 17.6 121 TIMBER CREEK 7950 4.3 5.7 75 7.9 7.2 110 YOUNTS PEAK 8350 17.6 17.1 103 18.2 16.0 114 ----- ----- Basin wide percent of average 103 115 SHOSHONE RIVER BLACKWATER 9780 25.8 24.4 106 23.4 20.4 115 EVENING STAR 9200 30.8 29.7 104 33.7 25.1 134 KIRWIN 9550 12.3 11.2 110 14.3 11.1 129 MARQUETTE 8760 6.6 8.8 75 9.8 9.5 103 SYLVAN LAKE 8420 21.7 22.5 96 26.3 20.8 126 SYLVAN ROAD 7120 12.8 12.9 99 21.3 17.6 121 YOUNTS PEAK 8350 17.6 17.1 103 18.2 16.0 114 ----- ----- Basin wide percent of average 101 122 POWDER-TONGUE BEAR TRAP MEADOW 8200 9.2 5.2 177 9.3 8.0 116 BIG GOOSE 7990 9.1 10.3 88 12.0 8.3 145 BONE SPRINGS DIV 9350 17.5 16.0 109 17.5 14.4 122 BURGESS JUNCTION 7880 12.4 11.5 108 13.8 11.9 116 CLOUD PEAK RESERVOIR 9860 15.5 13.0 119 15.1 12.5 121 DOME LAKE 8880 11.5 12.1 95 14.8 12.8 116 GRAVE SPRINGS 8550 9.7 9.2 105 10.2 9.5 107 HANSEN SAWMILL 8360 7.2 6.3 114 9.5 8.0 119 MIDDLE POWDER 7760 11.5 11.5 100 9.3 12.1 77 POWDER RIVER PASS 9480 12.6 10.7 118 14.7 12.1 121 SUCKER CREEK 8880 14.3 11.6 123 16.2 13.2 123 TIE CREEK 6870 7.7 5.7 135 11.7 9.6 122 ----- ----- Basin wide percent of average 112 116 BELLE FOURCHE BLIND PARK 6890 7.7 8.6 90 10.5 10.9 96 COLE CANYON 5910 5.9 6.7 88 7.5 6.6 114 NORTH RAPID CREEK 6130 8.5 8.1 105 8.5 8.5 100 ----- ----- Basin wide percent of average 94 102 UPPER N. PLATTE RIVER COLUMBINE 9160 26.0 24.9 104 27.0 24.9 108 DIVIDE PEAK 8880 21.8 19.7 111 22.0 20.5 107 ELK RIVER 8700 26.0 19.3 135 22.4 19.3 116 JOE WRIGHT 10120 22.3 21.0 106 25.9 24.4 106 NORTH FRENCH CREEK 10130 29.7 28.8 103 28.4 24.3 117 OLD BATTLE 10000 31.9 31.9 100 37.7 34.2 110 SAGE CREEK BASIN 7850 17.5 11.4 154 17.1 11.9 144 SOUTH BRUSH CREEK 8440 13.5 13.0 104 16.2 16.1 101 TOWER 10500 41.8 45.0 93 -M 38.0 * WEBBER SPRINGS 9250 25.2 26.2 96 28.8 26.4 109 WILLOW CREEK PASS 9540 14.7 11.8 125 14.5 12.6 115 ----- ----- Basin wide percent of average 107 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.7 23.4 88 21.2 21.7 98 CASPER MTN. 7900 12.8 14.2 90 13.6 14.0 97 DEADMAN HILL 10220 16.6 16.1 103 17.1 16.6 103 DEER PARK 9700 15.6 16.8 93 20.0 21.6 93 LAPRELE CREEK 8375 7.6 10.9 70 10.5 12.4 85 RENO HILL 8400 13.2 13.9 95 15.0 14.6 103 ROACH 9700 18.5 16.8 110 21.1 18.3 115 SAND LAKE 10050 27.3 32.1 85 26.9 23.7 114 SOUTH PASS 9040 14.5 16.6 87 17.3 18.2 95 WINDY PEAK 7900 8.0 8.0 100 9.4 10.3 91 ----- ----- Basin wide percent of average 92 100 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.8 11.3 140 16.1 15.6 103 DIVIDE PEAK 8880 21.8 19.7 111 22.0 20.5 107 OLD BATTLE 10000 31.9 31.9 100 37.7 34.2 110 SANDSTONE RS 8150 17.2 14.9 115 20.7 18.6 111 WHISKEY PARK 8950 31.6 30.1 105 34.3 28.4 121 ----- ----- Basin wide percent of average 110 112 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.5 14.4 94 13.5 13.3 102 BLIND BULL SUM 8650 25.7 28.0 92 18.2 22.2 82 EAST RIM DIVIDE 7930 9.5 13.1 73 11.6 12.0 97 ELKHART PARK G.S. 9400 11.1 13.4 83 11.7 13.2 89 GROS VENTRE SUMMIT 8750 13.2 14.2 93 14.2 12.8 111 GUNSIGHT PASS 9820 12.6 -M * 14.6 -M * KENDALL R.S. 7740 12.7 14.6 87 14.2 14.5 98 LOOMIS PARK 8240 16.7 17.4 96 18.1 17.3 105 NEW FORK LAKE 8340 9.7 11.2 87 9.6 11.3 85 SNIDER BASIN 8060 13.7 14.6 94 14.6 16.1 91 SPRING CREEK DIVIDE 9000 23.0 26.5 87 24.1 26.3 92 TRIPLE PEAK 8500 25.8 24.9 104 28.8 24.7 117 ----- ----- Basin wide percent of average 91 97 LOWER GREEN RIVER HAMS FORK 7840 12.4 12.2 102 10.5 12.2 86 HEWINTA 9519 15.7 11.8 133 16.8 14.4 117 HICKERSON PARK 9145 7.5 7.4 101 10.0 7.8 128 HOLE-IN-ROCK 9150 6.7 7.0 96 10.2 7.3 140 INDIAN CREEK 9425 25.8 27.8 93 -M 25.3 * KELLEY R.S. 8180 15.4 16.9 91 18.2 20.2 90 STEEL CREEK PARK 10200 15.5 15.6 99 18.3 15.9 115 ----- ----- Basin wide percent of average 100 108 UPPER BEAR RIVER BUG LAKE 7950 17.9 20.9 86 17.0 19.1 89 HAYDEN FORK 9212 19.8 16.3 121 22.7 20.8 109 KELLEY R.S. 8180 15.4 16.9 91 18.2 20.2 90 LILY LAKE 9156 14.7 13.0 113 17.4 17.3 101 MONTE CRISTO 8960 28.3 29.8 95 26.0 25.3 103 SALT RIVER SUMMIT 7760 13.7 14.4 95 15.9 18.7 85 TRIAL LAKE 9992 21.6 25.0 86 23.5 24.8 95 ----- ----- 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.