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 FRIDAY: FEBRUARY 1 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 12.4 12.7 98 18.9 14.9 127 COTTONWOOD CREEK 7670 14.2 14.2 100 16.8 18.7 90 GRAND TARGHEE 9260 32.7 -M * 22.7 -M * GRANITE CREEK 6770 11.0 12.4 89 16.6 13.7 121 GRASSY LAKE 7265 19.8 23.0 86 27.7 25.0 111 GROS VENTRE SUMMIT 8750 9.2 9.5 97 10.5 8.7 121 GUNSIGHT PASS 9820 6.2 -M * 10.1 -M * LEWIS LAKE DIVIDE 7850 21.2 23.1 92 26.6 24.9 107 PHILLIPS BENCH 8200 19.7 18.5 106 22.7 19.5 116 SALT RIVER SUMMIT 7760 7.5 9.2 82 9.7 12.6 77 SNAKE RIVER STATION 6920 11.0 12.6 87 18.9 15.6 121 SPRING CREEK DIVIDE 9000 13.7 17.4 79 14.2 18.3 78 THUMB DIVIDE 7980 11.2 11.8 95 14.1 12.7 111 TOGWOTEE PASS 9580 18.4 16.9 109 20.2 16.8 120 TWO OCEAN PLATEAU 9240 25.3 19.0 133 21.3 18.5 115 WILLOW CREEK 8380 18.1 20.2 90 23.5 21.8 108 ----- ----- Basin wide percent of average 96 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 17.2 16.2 106 16.3 14.0 116 BLACK BEAR 8170 32.4 25.6 127 30.7 26.1 118 CANYON 7870 11.7 8.9 131 14.8 10.8 137 FISHER CREEK 9100 29.0 23.8 122 26.6 24.6 108 MADISON PLATEAU 7750 20.5 16.2 127 23.6 17.5 135 NORTHEAST ENTRANCE 7350 5.6 7.7 73 9.3 8.9 104 PARKER PEAK 9400 17.2 14.8 116 -M 11.1 * SYLVAN LAKE 8420 14.3 15.2 94 18.6 14.8 126 THUMB DIVIDE 7980 11.2 11.8 95 14.1 12.7 111 TWO OCEAN PLATEAU 9240 25.3 19.0 133 21.3 18.5 115 WHISKEY CREEK 6800 12.9 11.1 116 18.2 13.8 132 WHITE MILL 8700 17.8 16.1 111 -M 18.3 * WOLVERINE 7650 5.9 8.6 69 9.0 9.2 98 ----- ----- Basin wide percent of average 113 118 WIND RIVER BURROUGHS CREEK 8750 10.9 10.1 108 13.6 11.3 120 COLD SPRINGS 9630 4.0 6.0 67 6.9 7.1 97 DEER PARK 9700 9.3 11.7 79 13.1 14.5 90 HOBBS PARK 10100 8.4 9.8 86 9.1 8.2 111 LITTLE WARM 9370 6.6 7.8 85 9.6 9.1 105 SOUTH PASS 9040 8.2 11.4 72 11.1 12.2 91 ST. LAWRENCE ALT 8620 3.7 4.8 77 5.6 5.7 98 TOGWOTEE PASS 9580 18.4 16.9 109 20.2 16.8 120 TOWNSEND CREEK 8700 4.6 5.6 82 7.7 7.3 105 ----- ----- Basin wide percent of average 88 105 BIGHORN BASIN BALD MTN. 9380 10.6 13.5 79 10.8 11.8 92 BEAR TRAP MEADOW 8200 5.5 3.5 157 6.4 5.5 116 BLACKWATER 9780 16.7 16.6 101 15.8 14.2 111 BONE SPRINGS DIV 9350 10.2 10.6 96 12.5 9.6 130 EVENING STAR 9200 19.4 19.7 98 21.3 17.6 121 GRAVE SPRINGS 8550 5.5 5.7 96 5.9 6.4 92 KIRWIN 9550 8.6 7.7 112 10.0 7.6 132 MARQUETTE 8760 2.1 5.9 36 6.5 6.2 105 MIDDLE POWDER 7760 6.3 7.2 88 5.9 8.3 71 OWL CREEK 8975 3.5 3.4 103 5.0 3.7 135 POWDER RIVER PASS 9480 7.7 7.2 107 9.6 8.3 116 SHELL CREEK 9580 10.6 9.9 107 10.7 9.3 115 SYLVAN LAKE 8420 14.3 15.2 94 18.6 14.8 126 SYLVAN ROAD 7120 7.3 8.8 83 15.7 13.3 118 TIMBER CREEK 7950 2.0 3.6 56 5.5 4.5 122 YOUNTS PEAK 8350 11.5 12.0 96 12.9 11.4 113 ----- ----- Basin wide percent of average 94 114 SHOSHONE RIVER BLACKWATER 9780 16.7 16.6 101 15.8 14.2 111 EVENING STAR 9200 19.4 19.7 98 21.3 17.6 121 KIRWIN 9550 8.6 7.7 112 10.0 7.6 132 MARQUETTE 8760 2.1 5.9 36 6.5 6.2 105 SYLVAN LAKE 8420 14.3 15.2 94 18.6 14.8 126 SYLVAN ROAD 7120 7.3 8.8 83 15.7 13.3 118 YOUNTS PEAK 8350 11.5 12.0 96 12.9 11.4 113 ----- ----- Basin wide percent of average 93 118 POWDER-TONGUE BEAR TRAP MEADOW 8200 5.5 3.5 157 6.4 5.5 116 BIG GOOSE 7990 5.3 6.0 88 8.3 5.7 146 BONE SPRINGS DIV 9350 10.2 10.6 96 12.5 9.6 130 BURGESS JUNCTION 7880 7.2 7.4 97 9.1 7.9 115 CLOUD PEAK RESERVOIR 9860 9.4 8.1 116 10.6 8.2 129 DOME LAKE 8880 6.7 7.9 85 10.0 8.7 115 GRAVE SPRINGS 8550 5.5 5.7 96 5.9 6.4 92 HANSEN SAWMILL 8360 4.2 4.2 100 6.4 5.3 121 MIDDLE POWDER 7760 6.3 7.2 88 5.9 8.3 71 POWDER RIVER PASS 9480 7.7 7.2 107 9.6 8.3 116 SUCKER CREEK 8880 8.4 7.2 117 10.2 8.8 116 TIE CREEK 6870 4.0 4.0 100 7.9 6.8 116 ----- ----- Basin wide percent of average 102 115 BELLE FOURCHE BLIND PARK 6890 3.8 5.2 73 6.5 7.8 83 COLE CANYON 5910 3.3 4.5 73 4.6 4.7 98 NORTH RAPID CREEK 6130 4.6 5.0 92 4.8 6.3 76 ----- ----- Basin wide percent of average 80 85 UPPER N. PLATTE RIVER COLUMBINE 9160 15.9 16.5 96 18.2 16.7 109 DIVIDE PEAK 8880 15.5 13.0 119 15.7 13.7 115 ELK RIVER 8700 14.8 12.2 121 15.5 12.7 122 JOE WRIGHT 10120 14.7 13.9 106 17.8 16.2 110 NORTH FRENCH CREEK 10130 20.4 18.4 111 20.3 16.4 124 OLD BATTLE 10000 21.2 20.0 106 25.4 22.4 113 SAGE CREEK BASIN 7850 11.8 7.5 157 13.2 7.9 167 SOUTH BRUSH CREEK 8440 8.5 7.4 115 11.9 10.9 109 TOWER 10500 26.5 30.1 88 26.7 25.4 105 WEBBER SPRINGS 9250 16.4 16.1 102 19.5 18.0 108 WILLOW CREEK PASS 9540 10.7 7.5 143 10.8 8.3 130 ----- ----- Basin wide percent of average 108 116 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.2 15.3 86 14.1 14.3 99 CASPER MTN. 7900 6.7 9.0 74 9.2 8.9 103 DEADMAN HILL 10220 10.8 10.6 102 11.0 10.6 104 DEER PARK 9700 9.3 11.7 79 13.1 14.5 90 LAPRELE CREEK 8375 -M 7.3 * -M 8.1 * RENO HILL 8400 7.3 8.4 87 9.1 9.3 98 ROACH 9700 12.8 11.0 116 15.2 11.7 130 SAND LAKE 10050 17.7 19.9 89 17.9 15.9 113 SOUTH PASS 9040 8.2 11.4 72 11.1 12.2 91 WINDY PEAK 7900 4.8 4.5 107 6.4 7.0 91 ----- ----- Basin wide percent of average 89 103 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.8 7.8 138 12.1 9.9 122 DIVIDE PEAK 8880 15.5 13.0 119 15.7 13.7 115 OLD BATTLE 10000 21.2 20.0 106 25.4 22.4 113 SANDSTONE RS 8150 11.8 9.7 122 14.8 12.5 118 WHISKEY PARK 8950 19.2 18.5 104 22.4 19.4 115 ----- ----- Basin wide percent of average 114 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 8.4 9.5 88 8.8 9.0 98 BLIND BULL SUM 8650 15.0 18.4 82 12.6 15.4 82 EAST RIM DIVIDE 7930 5.0 8.5 59 7.4 8.1 91 ELKHART PARK G.S. 9400 7.0 8.8 80 8.0 8.9 90 GROS VENTRE SUMMIT 8750 9.2 9.5 97 10.5 8.7 121 GUNSIGHT PASS 9820 6.2 -M * 10.1 -M * KENDALL R.S. 7740 7.3 9.8 74 9.2 9.7 95 LOOMIS PARK 8240 10.0 11.2 89 11.5 11.8 97 NEW FORK LAKE 8340 5.7 7.7 74 6.2 7.9 78 SNIDER BASIN 8060 7.4 9.8 76 8.6 11.1 77 SPRING CREEK DIVIDE 9000 13.7 17.4 79 14.2 18.3 78 TRIPLE PEAK 8500 14.1 16.6 85 17.2 16.2 106 ----- ----- Basin wide percent of average 81 91 LOWER GREEN RIVER HAMS FORK 7840 6.7 8.4 80 6.4 8.4 76 HEWINTA 9519 6.6 6.7 99 11.3 9.3 122 HICKERSON PARK 9145 3.6 4.4 82 6.3 5.2 121 HOLE-IN-ROCK 9150 3.0 4.1 73 6.3 4.8 131 INDIAN CREEK 9425 14.0 17.6 80 13.0 16.8 77 KELLEY R.S. 8180 8.5 10.7 79 11.1 13.9 80 STEEL CREEK PARK 10200 8.8 9.4 94 12.4 10.1 123 ----- ----- Basin wide percent of average 84 98 UPPER BEAR RIVER BUG LAKE 7950 10.6 13.2 80 11.0 12.9 85 HAYDEN FORK 9212 11.9 9.8 121 15.3 13.6 112 KELLEY R.S. 8180 8.5 10.7 79 11.1 13.9 80 LILY LAKE 9156 9.1 8.2 111 12.0 11.5 104 MONTE CRISTO 8960 17.6 18.2 97 17.7 16.7 106 SALT RIVER SUMMIT 7760 7.5 9.2 82 9.7 12.6 77 TRIAL LAKE 9992 13.1 15.7 83 15.8 15.8 100 ----- ----- Basin wide percent of average 92 95 ----------------------------------------------------------------------------- -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.