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: FEBRUARY 13 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.2 14.2 100 20.8 16.4 127 COTTONWOOD CREEK 7670 17.8 15.8 113 19.8 20.4 97 GRAND TARGHEE 9260 36.6 -M * 25.1 -M * GRANITE CREEK 6770 13.4 13.9 96 18.9 15.3 124 GRASSY LAKE 7265 23.8 25.8 92 31.4 27.5 114 GROS VENTRE SUMMIT 8750 10.7 10.2 105 11.7 9.5 123 GUNSIGHT PASS 9820 10.1 -M * 11.5 -M * LEWIS LAKE DIVIDE 7850 24.8 25.9 96 29.1 27.5 106 PHILLIPS BENCH 8200 23.5 20.8 113 26.8 21.6 124 SALT RIVER SUMMIT 7760 10.2 10.6 96 12.2 13.9 88 SNAKE RIVER STATION 6920 13.3 14.3 93 21.1 17.2 123 SPRING CREEK DIVIDE 9000 17.5 19.3 91 17.9 20.0 89 THUMB DIVIDE 7980 12.6 13.2 95 15.3 14.0 109 TOGWOTEE PASS 9580 21.1 18.5 114 23.0 18.4 125 TWO OCEAN PLATEAU 9240 27.8 20.8 134 22.1 20.4 108 WILLOW CREEK 8380 23.0 22.4 103 28.6 23.9 120 ----- ----- Basin wide percent of average 103 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 19.9 17.8 112 18.6 15.3 122 BLACK BEAR 8170 35.9 28.3 127 32.9 29.0 113 CANYON 7870 13.3 9.8 136 16.6 11.7 142 FISHER CREEK 9100 33.5 26.1 128 30.6 27.0 113 MADISON PLATEAU 7750 23.1 18.0 128 25.9 19.4 134 NORTHEAST ENTRANCE 7350 7.1 8.5 84 10.6 9.7 109 PARKER PEAK 9400 19.4 16.0 121 -M 12.1 * SYLVAN LAKE 8420 15.8 16.3 97 20.2 16.1 125 THUMB DIVIDE 7980 12.6 13.2 95 15.3 14.0 109 TWO OCEAN PLATEAU 9240 27.8 20.8 134 22.1 20.4 108 WHISKEY CREEK 6800 14.6 12.4 118 20.9 15.2 138 WHITE MILL 8700 20.9 17.7 118 -M 20.1 * WOLVERINE 7650 7.9 9.4 84 10.5 10.0 105 ----- ----- Basin wide percent of average 117 119 WIND RIVER BURROUGHS CREEK 8750 12.6 11.0 115 15.4 12.2 126 COLD SPRINGS 9630 5.1 6.3 81 8.0 7.6 105 DEER PARK 9700 10.2 13.1 78 14.6 16.0 91 HOBBS PARK 10100 9.1 10.4 87 9.9 8.9 111 LITTLE WARM 9370 7.5 8.3 90 10.8 9.8 110 SOUTH PASS 9040 9.3 12.1 77 12.0 13.4 90 ST. LAWRENCE ALT 8620 4.1 5.1 80 5.8 6.2 94 TOGWOTEE PASS 9580 21.1 18.5 114 23.0 18.4 125 TOWNSEND CREEK 8700 5.0 6.1 82 7.9 7.9 100 ----- ----- Basin wide percent of average 92 107 BIGHORN BASIN BALD MTN. 9380 11.9 14.3 83 11.8 12.7 93 BEAR TRAP MEADOW 8200 6.0 3.8 158 6.6 5.9 112 BLACKWATER 9780 19.2 17.8 108 18.0 15.4 117 BONE SPRINGS DIV 9350 12.0 11.5 104 13.8 10.4 133 EVENING STAR 9200 23.2 21.9 106 25.8 19.3 134 GRAVE SPRINGS 8550 6.2 6.3 98 7.3 6.8 107 KIRWIN 9550 9.4 8.2 115 11.5 8.2 140 MARQUETTE 8760 2.9 6.2 47 6.8 6.7 101 MIDDLE POWDER 7760 6.8 7.9 86 6.2 8.8 70 OWL CREEK 8975 3.9 3.6 108 5.3 4.0 132 POWDER RIVER PASS 9480 8.8 7.7 114 10.8 9.0 120 SHELL CREEK 9580 12.0 10.6 113 11.8 10.0 118 SYLVAN LAKE 8420 15.8 16.3 97 20.2 16.1 125 SYLVAN ROAD 7120 8.4 9.8 86 17.1 14.3 120 TIMBER CREEK 7950 2.2 3.9 56 5.6 4.8 117 YOUNTS PEAK 8350 13.6 12.9 105 14.9 12.3 121 ----- ----- Basin wide percent of average 100 117 SHOSHONE RIVER BLACKWATER 9780 19.2 17.8 108 18.0 15.4 117 EVENING STAR 9200 23.2 21.9 106 25.8 19.3 134 KIRWIN 9550 9.4 8.2 115 11.5 8.2 140 MARQUETTE 8760 2.9 6.2 47 6.8 6.7 101 SYLVAN LAKE 8420 15.8 16.3 97 20.2 16.1 125 SYLVAN ROAD 7120 8.4 9.8 86 17.1 14.3 120 YOUNTS PEAK 8350 13.6 12.9 105 14.9 12.3 121 ----- ----- Basin wide percent of average 99 124 POWDER-TONGUE BEAR TRAP MEADOW 8200 6.0 3.8 158 6.6 5.9 112 BIG GOOSE 7990 5.7 6.7 85 8.6 6.1 141 BONE SPRINGS DIV 9350 12.0 11.5 104 13.8 10.4 133 BURGESS JUNCTION 7880 7.9 8.0 99 9.6 8.5 113 CLOUD PEAK RESERVOIR 9860 10.7 8.8 122 11.1 8.8 126 DOME LAKE 8880 7.6 8.7 87 10.8 9.3 116 GRAVE SPRINGS 8550 6.2 6.3 98 7.3 6.8 107 HANSEN SAWMILL 8360 4.7 4.5 104 7.0 5.7 123 MIDDLE POWDER 7760 6.8 7.9 86 6.2 8.8 70 POWDER RIVER PASS 9480 8.8 7.7 114 10.8 9.0 120 SUCKER CREEK 8880 9.1 7.9 115 11.1 9.5 117 TIE CREEK 6870 4.3 4.4 98 8.2 7.2 114 ----- ----- Basin wide percent of average 104 116 BELLE FOURCHE BLIND PARK 6890 5.1 5.8 88 7.8 8.4 93 COLE CANYON 5910 4.7 5.0 94 5.5 5.0 110 NORTH RAPID CREEK 6130 5.9 5.8 102 6.1 6.8 90 ----- ----- Basin wide percent of average 95 96 UPPER N. PLATTE RIVER COLUMBINE 9160 19.8 18.9 105 21.4 18.3 117 DIVIDE PEAK 8880 17.8 14.0 127 18.0 15.0 120 ELK RIVER 8700 18.8 13.9 135 18.4 14.1 130 JOE WRIGHT 10120 17.6 15.3 115 20.6 17.8 116 NORTH FRENCH CREEK 10130 22.6 20.0 113 22.2 17.9 124 OLD BATTLE 10000 25.1 22.5 112 29.9 24.7 121 SAGE CREEK BASIN 7850 13.7 8.1 169 15.2 8.7 175 SOUTH BRUSH CREEK 8440 8.9 8.4 106 12.6 11.9 106 TOWER 10500 33.5 33.3 101 30.3 28.0 108 WEBBER SPRINGS 9250 19.5 18.1 108 22.8 19.6 116 WILLOW CREEK PASS 9540 12.1 8.4 144 12.2 9.1 134 ----- ----- Basin wide percent of average 116 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 16.0 16.8 95 16.5 15.5 106 CASPER MTN. 7900 7.6 9.9 77 9.8 9.7 101 DEADMAN HILL 10220 12.5 11.6 108 12.9 11.6 111 DEER PARK 9700 10.2 13.1 78 14.6 16.0 91 LAPRELE CREEK 8375 -M 7.9 * -M 8.8 * RENO HILL 8400 7.9 9.1 87 9.8 10.2 96 ROACH 9700 14.6 12.3 119 17.1 12.8 134 SAND LAKE 10050 20.1 21.9 92 20.1 17.2 117 SOUTH PASS 9040 9.3 12.1 77 12.0 13.4 90 WINDY PEAK 7900 5.2 5.2 100 6.9 7.5 92 ----- ----- Basin wide percent of average 92 105 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.3 8.6 143 13.5 10.8 125 DIVIDE PEAK 8880 17.8 14.0 127 18.0 15.0 120 OLD BATTLE 10000 25.1 22.5 112 29.9 24.7 121 SANDSTONE RS 8150 13.8 10.9 127 17.1 13.8 124 WHISKEY PARK 8950 24.2 20.7 117 27.4 21.0 130 ----- ----- Basin wide percent of average 122 124 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.2 10.6 96 10.5 10.0 105 BLIND BULL SUM 8650 18.8 20.3 93 14.5 16.9 86 EAST RIM DIVIDE 7930 6.9 9.6 72 9.1 8.9 102 ELKHART PARK G.S. 9400 9.0 9.7 93 9.8 9.7 101 GROS VENTRE SUMMIT 8750 10.7 10.2 105 11.7 9.5 123 GUNSIGHT PASS 9820 10.1 -M * 11.5 -M * KENDALL R.S. 7740 9.4 10.8 87 11.2 10.8 104 LOOMIS PARK 8240 12.4 12.5 99 14.1 13.0 108 NEW FORK LAKE 8340 7.7 8.5 91 -M 8.6 * SNIDER BASIN 8060 10.0 10.9 92 11.1 12.2 91 SPRING CREEK DIVIDE 9000 17.5 19.3 91 17.9 20.0 89 TRIPLE PEAK 8500 17.8 18.4 97 21.0 17.9 117 ----- ----- Basin wide percent of average 93 102 LOWER GREEN RIVER HAMS FORK 7840 8.9 9.4 95 7.7 9.2 84 HEWINTA 9519 8.3 7.7 108 12.9 10.2 126 HICKERSON PARK 9145 4.2 5.0 84 6.9 5.6 123 HOLE-IN-ROCK 9150 3.8 4.8 79 7.0 5.2 135 INDIAN CREEK 9425 17.3 19.4 89 13.4 18.5 72 KELLEY R.S. 8180 -M 12.0 * -M 15.2 * STEEL CREEK PARK 10200 10.3 10.7 96 14.0 11.2 125 ----- ----- Basin wide percent of average 93 103 UPPER BEAR RIVER BUG LAKE 7950 13.0 14.8 88 12.8 14.2 90 HAYDEN FORK 9212 14.0 11.2 125 18.0 15.0 120 KELLEY R.S. 8180 -M 12.0 * -M 15.2 * LILY LAKE 9156 10.8 9.3 116 13.7 12.6 109 MONTE CRISTO 8960 21.0 20.9 100 20.7 18.5 112 SALT RIVER SUMMIT 7760 10.2 10.6 96 12.2 13.9 88 TRIAL LAKE 9992 15.5 17.7 88 18.7 17.7 106 ----- ----- Basin wide percent of average 100 105 ----------------------------------------------------------------------------- -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.