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: FEBRUARY 16 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.4 14.5 99 21.1 16.8 126 COTTONWOOD CREEK 7670 18.2 16.2 112 20.1 20.8 97 GRAND TARGHEE 9260 37.4 -M * 25.5 -M * GRANITE CREEK 6770 13.7 14.3 96 19.1 15.6 122 GRASSY LAKE 7265 24.3 26.4 92 32.1 28.1 114 GROS VENTRE SUMMIT 8750 10.8 10.4 104 11.9 9.7 123 GUNSIGHT PASS 9820 10.2 -M * 11.7 -M * LEWIS LAKE DIVIDE 7850 24.9 26.6 94 29.6 28.2 105 PHILLIPS BENCH 8200 23.9 21.3 112 27.1 22.1 123 SALT RIVER SUMMIT 7760 10.4 10.9 95 12.5 14.2 88 SNAKE RIVER STATION 6920 13.3 14.7 90 21.5 17.6 122 SPRING CREEK DIVIDE 9000 17.8 19.8 90 18.2 20.4 89 THUMB DIVIDE 7980 12.9 13.6 95 15.6 14.3 109 TOGWOTEE PASS 9580 21.3 18.9 113 23.3 18.8 124 TWO OCEAN PLATEAU 9240 28.2 21.3 132 22.9 20.9 110 WILLOW CREEK 8380 23.7 22.9 103 29.2 24.4 120 ----- ----- Basin wide percent of average 102 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 20.5 18.3 112 19.1 15.6 122 BLACK BEAR 8170 36.8 29.5 125 33.4 29.7 112 CANYON 7870 13.7 10.2 134 17.0 11.9 143 FISHER CREEK 9100 34.1 26.9 127 -M 27.6 * MADISON PLATEAU 7750 23.8 18.7 127 26.4 19.8 133 NORTHEAST ENTRANCE 7350 7.3 8.9 82 10.7 9.9 108 PARKER PEAK 9400 19.9 16.6 120 -M 12.4 * SYLVAN LAKE 8420 16.1 17.0 95 20.7 16.4 126 THUMB DIVIDE 7980 12.9 13.6 95 15.6 14.3 109 TWO OCEAN PLATEAU 9240 28.2 21.3 132 22.9 20.9 110 WHISKEY CREEK 6800 15.1 12.8 118 21.0 15.6 135 WHITE MILL 8700 21.6 18.3 118 -M 20.5 * WOLVERINE 7650 8.2 9.7 85 10.8 10.2 106 ----- ----- Basin wide percent of average 116 120 WIND RIVER BURROUGHS CREEK 8750 12.8 11.4 112 15.6 12.5 125 COLD SPRINGS 9630 5.4 6.5 83 8.3 7.7 108 DEER PARK 9700 10.8 13.8 78 15.3 16.3 94 HOBBS PARK 10100 9.8 10.8 91 10.5 9.0 117 LITTLE WARM 9370 7.7 8.6 90 11.1 10.0 111 SOUTH PASS 9040 10.1 12.6 80 12.8 13.7 93 ST. LAWRENCE ALT 8620 4.8 5.3 91 6.4 6.4 100 TOGWOTEE PASS 9580 21.3 18.9 113 23.3 18.8 124 TOWNSEND CREEK 8700 5.7 6.3 90 8.8 8.1 109 ----- ----- Basin wide percent of average 94 109 BIGHORN BASIN BALD MTN. 9380 12.1 14.6 83 12.1 12.9 94 BEAR TRAP MEADOW 8200 6.1 3.9 156 6.7 6.0 112 BLACKWATER 9780 19.6 18.5 106 18.4 15.7 117 BONE SPRINGS DIV 9350 12.2 11.8 103 13.8 10.6 130 EVENING STAR 9200 23.5 22.6 104 -M 19.8 * GRAVE SPRINGS 8550 6.4 6.5 98 7.4 7.0 106 KIRWIN 9550 9.7 8.4 115 11.8 8.4 140 MARQUETTE 8760 3.0 6.3 48 6.9 6.8 101 MIDDLE POWDER 7760 7.0 8.1 86 6.3 8.9 71 OWL CREEK 8975 4.1 3.7 111 5.4 4.1 132 POWDER RIVER PASS 9480 8.9 7.9 113 10.9 9.2 118 SHELL CREEK 9580 12.2 10.8 113 12.0 10.1 119 SYLVAN LAKE 8420 16.1 17.0 95 20.7 16.4 126 SYLVAN ROAD 7120 8.7 10.3 84 17.3 14.6 118 TIMBER CREEK 7950 2.4 3.9 62 5.8 4.9 118 YOUNTS PEAK 8350 13.7 13.3 103 15.1 12.5 121 ----- ----- Basin wide percent of average 99 115 SHOSHONE RIVER BLACKWATER 9780 19.6 18.5 106 18.4 15.7 117 EVENING STAR 9200 23.5 22.6 104 -M 19.8 * KIRWIN 9550 9.7 8.4 115 11.8 8.4 140 MARQUETTE 8760 3.0 6.3 48 6.9 6.8 101 SYLVAN LAKE 8420 16.1 17.0 95 20.7 16.4 126 SYLVAN ROAD 7120 8.7 10.3 84 17.3 14.6 118 YOUNTS PEAK 8350 13.7 13.3 103 15.1 12.5 121 ----- ----- Basin wide percent of average 98 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.1 3.9 156 6.7 6.0 112 BIG GOOSE 7990 5.9 6.8 87 8.8 6.2 142 BONE SPRINGS DIV 9350 12.2 11.8 103 13.8 10.6 130 BURGESS JUNCTION 7880 8.1 8.1 100 10.0 8.7 115 CLOUD PEAK RESERVOIR 9860 11.0 9.0 122 11.4 9.0 127 DOME LAKE 8880 7.8 8.8 89 11.1 9.5 117 GRAVE SPRINGS 8550 6.4 6.5 98 7.4 7.0 106 HANSEN SAWMILL 8360 5.0 4.6 109 7.2 5.8 124 MIDDLE POWDER 7760 7.0 8.1 86 6.3 8.9 71 POWDER RIVER PASS 9480 8.9 7.9 113 10.9 9.2 118 SUCKER CREEK 8880 9.4 8.1 116 11.4 9.6 119 TIE CREEK 6870 4.5 4.5 100 8.3 7.3 114 ----- ----- Basin wide percent of average 105 116 BELLE FOURCHE BLIND PARK 6890 5.1 6.0 85 7.9 8.5 93 COLE CANYON 5910 4.7 5.2 90 5.7 5.1 112 NORTH RAPID CREEK 6130 6.0 6.0 100 6.2 6.9 90 ----- ----- Basin wide percent of average 92 97 UPPER N. PLATTE RIVER COLUMBINE 9160 19.9 19.5 102 22.1 18.8 118 DIVIDE PEAK 8880 18.9 14.2 133 19.1 15.3 125 ELK RIVER 8700 19.9 14.3 139 19.3 14.4 134 JOE WRIGHT 10120 18.0 15.7 115 21.3 18.2 117 NORTH FRENCH CREEK 10130 22.9 20.5 112 22.6 18.3 123 OLD BATTLE 10000 26.3 23.2 113 31.0 25.3 123 SAGE CREEK BASIN 7850 14.4 8.2 176 15.3 8.9 172 SOUTH BRUSH CREEK 8440 9.1 8.6 106 12.7 12.2 104 TOWER 10500 34.1 34.1 100 30.3 28.7 106 WEBBER SPRINGS 9250 20.6 18.6 111 24.0 20.0 120 WILLOW CREEK PASS 9540 12.3 8.6 143 12.7 9.3 137 ----- ----- Basin wide percent of average 117 122 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 16.4 17.2 95 17.1 15.8 108 CASPER MTN. 7900 8.5 10.2 83 10.4 10.0 104 DEADMAN HILL 10220 13.0 11.8 110 13.4 11.9 113 DEER PARK 9700 10.8 13.8 78 15.3 16.3 94 LAPRELE CREEK 8375 -M 8.1 * -M 9.0 * RENO HILL 8400 8.5 9.3 91 10.3 10.3 100 ROACH 9700 15.3 12.6 121 17.9 13.1 137 SAND LAKE 10050 20.7 22.4 92 20.8 17.5 119 SOUTH PASS 9040 10.1 12.6 80 12.8 13.7 93 WINDY PEAK 7900 6.0 5.3 113 7.5 7.7 97 ----- ----- Basin wide percent of average 95 108 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.4 8.7 143 13.7 11.1 123 DIVIDE PEAK 8880 18.9 14.2 133 19.1 15.3 125 OLD BATTLE 10000 26.3 23.2 113 31.0 25.3 123 SANDSTONE RS 8150 14.1 11.1 127 17.5 14.1 124 WHISKEY PARK 8950 24.7 21.2 117 28.2 21.4 132 ----- ----- Basin wide percent of average 123 126 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.3 10.9 94 10.4 10.2 102 BLIND BULL SUM 8650 19.2 20.7 93 14.8 17.2 86 EAST RIM DIVIDE 7930 6.9 9.8 70 9.1 9.1 100 ELKHART PARK G.S. 9400 9.1 10.0 91 10.0 9.9 101 GROS VENTRE SUMMIT 8750 10.8 10.4 104 11.9 9.7 123 GUNSIGHT PASS 9820 10.2 -M * 11.7 -M * KENDALL R.S. 7740 9.4 11.1 85 11.2 11.1 101 LOOMIS PARK 8240 12.5 12.9 97 14.3 13.3 108 NEW FORK LAKE 8340 7.8 8.7 90 8.0 8.7 92 SNIDER BASIN 8060 10.1 11.2 90 11.2 12.4 90 SPRING CREEK DIVIDE 9000 17.8 19.8 90 18.2 20.4 89 TRIPLE PEAK 8500 18.2 18.8 97 21.4 18.4 116 ----- ----- Basin wide percent of average 92 100 LOWER GREEN RIVER HAMS FORK 7840 9.1 9.7 94 7.9 9.4 84 HEWINTA 9519 9.4 7.9 119 13.3 10.4 128 HICKERSON PARK 9145 5.3 5.2 102 7.5 5.7 132 HOLE-IN-ROCK 9150 4.6 5.0 92 7.9 5.3 149 INDIAN CREEK 9425 17.8 19.9 89 13.4 19.0 71 KELLEY R.S. 8180 -M 12.3 * -M 15.6 * STEEL CREEK PARK 10200 10.8 11.0 98 14.5 11.5 126 ----- ----- Basin wide percent of average 97 105 UPPER BEAR RIVER BUG LAKE 7950 14.0 15.2 92 13.7 14.5 94 HAYDEN FORK 9212 14.3 11.5 124 18.4 15.3 120 KELLEY R.S. 8180 -M 12.3 * -M 15.6 * LILY LAKE 9156 11.2 9.6 117 14.5 12.8 113 MONTE CRISTO 8960 22.3 21.6 103 21.5 18.9 114 SALT RIVER SUMMIT 7760 10.4 10.9 95 12.5 14.2 88 TRIAL LAKE 9992 16.0 18.2 88 19.1 18.1 106 ----- ----- Basin wide percent of average 101 106 ----------------------------------------------------------------------------- -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.