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 TUESDAY: NOVEMBER 18 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .7 2.4 29 3.5 4.1 85 COTTONWOOD CREEK 7670 3.7 2.7 137 6.7 5.7 118 GRAND TARGHEE 9260 6.6 -M * 8.9 -M * GRANITE CREEK 6770 .4 1.9 21 4.8 3.6 133 GRASSY LAKE 7265 3.5 4.5 78 7.5 6.6 114 GROS VENTRE SUMMIT 8750 2.5 2.7 93 3.9 3.2 122 GUNSIGHT PASS 9820 2.3 -M * 3.5 -M * LEWIS LAKE DIVIDE 7850 4.4 4.5 98 7.9 6.6 120 PHILLIPS BENCH 8200 2.6 4.0 65 5.4 4.9 110 SALT RIVER SUMMIT 7760 1.1 1.4 79 3.2 3.5 91 SNAKE RIVER STATION 6920 .6 2.2 27 4.0 4.4 91 SPRING CREEK DIVIDE 9000 3.5 4.2 83 5.4 5.1 106 THUMB DIVIDE 7980 2.0 2.4 83 5.1 3.8 134 TOGWOTEE PASS 9580 5.8 5.0 116 6.7 5.2 129 TWO OCEAN PLATEAU 9240 7.0 5.9 119 5.4 5.8 93 WILLOW CREEK 8380 3.6 4.9 73 7.9 6.7 118 ----- ----- Basin wide percent of average 85 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 4.1 4.9 84 3.9 4.0 98 BLACK BEAR 8170 6.0 6.1 98 9.1 7.3 125 CANYON 7870 1.8 1.9 95 2.9 3.5 83 FISHER CREEK 9100 5.7 5.8 98 6.8 6.7 101 MADISON PLATEAU 7750 2.6 3.6 72 5.1 4.9 104 NORTHEAST ENTRANCE 7350 .9 1.3 69 3.3 2.9 114 PARKER PEAK 9400 4.7 4.7 100 3.8 4.0 95 SYLVAN LAKE 8420 2.7 4.2 64 4.9 4.9 100 THUMB DIVIDE 7980 2.0 2.4 83 5.1 3.8 134 TWO OCEAN PLATEAU 9240 7.0 5.9 119 5.4 5.8 93 WHISKEY CREEK 6800 1.4 2.2 64 4.3 4.2 102 WHITE MILL 8700 4.3 4.2 102 5.2 5.3 98 WOLVERINE 7650 .7 1.6 44 2.4 3.2 75 ----- ----- Basin wide percent of average 90 103 WIND RIVER BURROUGHS CREEK 8750 3.1 2.5 124 3.9 3.4 115 COLD SPRINGS 9630 2.0 2.3 87 3.4 3.3 103 DEER PARK 9700 3.2 3.7 86 4.8 5.2 92 HOBBS PARK 10100 3.4 4.0 85 3.8 3.6 106 LITTLE WARM 9370 2.8 2.3 122 3.9 3.4 115 SOUTH PASS 9040 2.8 3.4 82 4.8 4.2 114 ST. LAWRENCE ALT 8620 .7 1.9 37 2.7 2.8 96 TOGWOTEE PASS 9580 5.8 5.0 116 6.7 5.2 129 TOWNSEND CREEK 8700 1.9 2.1 90 3.7 3.5 106 ----- ----- Basin wide percent of average 94 109 BIGHORN BASIN BALD MTN. 9380 6.0 4.6 130 5.8 4.1 141 BEAR TRAP MEADOW 8200 1.0 1.2 83 2.6 2.8 93 BLACKWATER 9780 4.3 5.4 80 4.2 5.0 84 BONE SPRINGS DIV 9350 4.9 4.3 114 4.7 3.9 121 EVENING STAR 9200 4.4 5.5 80 6.1 5.7 107 GRAVE SPRINGS 8550 1.1 2.1 52 2.8 3.0 93 KIRWIN 9550 3.3 3.1 106 3.5 3.2 109 MARQUETTE 8760 1.5 2.9 52 2.9 3.4 85 MIDDLE POWDER 7760 -M 2.5 * -M 4.1 * OWL CREEK 8975 2.5 1.5 167 2.7 1.8 150 POWDER RIVER PASS 9480 2.9 2.4 121 3.9 3.2 122 SHELL CREEK 9580 5.2 4.1 127 5.3 3.5 151 SYLVAN LAKE 8420 2.7 4.2 64 4.9 4.9 100 SYLVAN ROAD 7120 1.2 1.9 63 3.3 4.5 73 TIMBER CREEK 7950 1.6 2.0 80 3.4 2.5 136 YOUNTS PEAK 8350 3.0 3.0 100 3.8 3.7 103 ----- ----- Basin wide percent of average 95 109 SHOSHONE RIVER BLACKWATER 9780 4.3 5.4 80 4.2 5.0 84 EVENING STAR 9200 4.4 5.5 80 6.1 5.7 107 KIRWIN 9550 3.3 3.1 106 3.5 3.2 109 MARQUETTE 8760 1.5 2.9 52 2.9 3.4 85 SYLVAN LAKE 8420 2.7 4.2 64 4.9 4.9 100 SYLVAN ROAD 7120 1.2 1.9 63 3.3 4.5 73 YOUNTS PEAK 8350 3.0 3.0 100 3.8 3.7 103 ----- ----- Basin wide percent of average 78 94 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.0 1.2 83 2.6 2.8 93 BIG GOOSE 7990 1.3 1.6 81 3.3 2.7 122 BONE SPRINGS DIV 9350 4.9 4.3 114 4.7 3.9 121 BURGESS JUNCTION 7880 2.5 2.7 93 4.0 3.4 118 CLOUD PEAK RESERVOIR 9860 4.1 2.8 146 5.3 4.1 129 DOME LAKE 8880 3.3 3.3 100 4.4 4.0 110 GRAVE SPRINGS 8550 1.1 2.1 52 2.8 3.0 93 HANSEN SAWMILL 8360 .7 1.4 50 3.3 2.7 122 MIDDLE POWDER 7760 -M 2.5 * -M 4.1 * POWDER RIVER PASS 9480 2.9 2.4 121 3.9 3.2 122 SUCKER CREEK 8880 3.5 2.5 140 5.1 3.7 138 TIE CREEK 6870 .3 1.1 27 4.8 3.2 150 ----- ----- Basin wide percent of average 101 120 BELLE FOURCHE BLIND PARK 6890 3.5 1.5 233 5.7 3.8 150 COLE CANYON 5910 2.4 1.6 150 5.2 2.6 200 NORTH RAPID CREEK 6130 4.1 1.1 373 5.7 3.4 168 ----- ----- Basin wide percent of average 238 169 UPPER N. PLATTE RIVER COLUMBINE 9160 1.7 3.1 55 3.1 4.5 69 DIVIDE PEAK 8880 1.7 3.5 49 4.2 4.6 91 ELK RIVER 8700 .8 1.8 44 3.4 3.8 89 JOE WRIGHT 10120 3.9 4.8 81 5.8 5.9 98 NORTH FRENCH CREEK 10130 5.0 5.7 88 5.4 5.8 93 OLD BATTLE 10000 4.3 6.3 68 6.1 6.6 92 SAGE CREEK BASIN 7850 .5 2.0 25 2.3 2.7 85 SOUTH BRUSH CREEK 8440 1.7 1.9 89 3.5 4.2 83 TOWER 10500 5.2 8.6 60 6.3 7.6 83 WEBBER SPRINGS 9250 2.4 4.5 53 4.6 5.6 82 WILLOW CREEK PASS 9540 2.2 2.6 85 2.5 3.4 74 ----- ----- Basin wide percent of average 66 86 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.6 4.2 62 3.3 4.6 72 CASPER MTN. 7900 1.1 3.4 32 3.7 4.2 88 DEADMAN HILL 10220 2.8 3.9 72 2.9 4.1 71 DEER PARK 9700 3.2 3.7 86 4.8 5.2 92 LAPRELE CREEK 8375 .8 2.2 36 1.8 3.3 55 RENO HILL 8400 1.2 3.1 39 2.8 4.1 68 ROACH 9700 2.0 2.9 69 3.1 4.0 78 SAND LAKE 10050 4.9 6.6 74 4.6 5.3 87 SOUTH PASS 9040 2.8 3.4 82 4.8 4.2 114 WINDY PEAK 7900 1.2 1.5 80 1.7 2.9 59 ----- ----- Basin wide percent of average 65 80 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .8 1.3 62 3.2 3.3 97 DIVIDE PEAK 8880 1.7 3.5 49 4.2 4.6 91 OLD BATTLE 10000 4.3 6.3 68 6.1 6.6 92 SANDSTONE RS 8150 1.5 1.4 107 3.0 4.2 71 WHISKEY PARK 8950 2.5 4.1 61 4.8 5.5 87 ----- ----- Basin wide percent of average 65 88 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.9 2.7 70 2.6 3.2 81 BLIND BULL SUM 8650 4.1 4.4 93 4.8 4.4 109 EAST RIM DIVIDE 7930 .6 1.9 32 3.3 2.6 127 ELKHART PARK G.S. 9400 2.5 2.2 114 4.2 3.3 127 GROS VENTRE SUMMIT 8750 2.5 2.7 93 3.9 3.2 122 GUNSIGHT PASS 9820 2.3 -M * 3.5 -M * KENDALL R.S. 7740 1.0 2.0 50 3.6 3.0 120 LOOMIS PARK 8240 1.8 2.7 67 4.4 3.5 126 NEW FORK LAKE 8340 1.7 1.7 100 3.2 2.9 110 SNIDER BASIN 8060 1.1 2.2 50 2.9 3.2 91 SPRING CREEK DIVIDE 9000 3.5 4.2 83 5.4 5.1 106 TRIPLE PEAK 8500 3.0 3.8 79 4.8 4.5 107 ----- ----- Basin wide percent of average 78 111 LOWER GREEN RIVER HAMS FORK 7840 .1 1.4 7 2.7 2.6 104 HEWINTA 9519 .6 1.5 40 2.6 3.8 68 HICKERSON PARK 9145 .0 1.0 0 2.0 2.7 74 HOLE-IN-ROCK 9150 .4 1.0 40 2.5 2.5 100 INDIAN CREEK 9425 3.3 4.2 79 4.6 4.9 94 KELLEY R.S. 8180 2.3 2.6 88 3.6 4.1 88 STEEL CREEK PARK 10200 .6 2.9 21 3.4 4.0 85 ----- ----- Basin wide percent of average 50 87 UPPER BEAR RIVER BUG LAKE 7950 1.1 2.7 41 3.1 4.2 74 HAYDEN FORK 9212 1.4 2.0 70 4.0 4.5 89 KELLEY R.S. 8180 2.3 2.6 88 3.6 4.1 88 LILY LAKE 9156 1.4 2.0 70 3.4 4.3 79 MONTE CRISTO 8960 2.3 3.4 68 4.6 5.1 90 SALT RIVER SUMMIT 7760 1.1 1.4 79 3.2 3.5 91 TRIAL LAKE 9992 3.0 3.9 77 4.1 4.9 84 ----- ----- Basin wide percent of average 70 85 ----------------------------------------------------------------------------- -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.