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: NOVEMBER 12 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .8 1.6 50* 4.3 3.3 130 COTTONWOOD CREEK 7670 .6 2.0 30* 5.1 4.7 109 GRAND TARGHEE 9260 4.2 -M * 6.5 -M * GRANITE CREEK 6770 .4 1.3 31* 2.8 2.9 97 GRASSY LAKE 7265 1.0 3.2 31* 6.4 5.4 119 GROS VENTRE SUMMIT 8750 .8 2.2 36 2.7 2.7 100 GUNSIGHT PASS 9820 1.3 -M * 3.2 -M * LEWIS LAKE DIVIDE 7850 .9 3.2 28* 5.5 5.2 106 PHILLIPS BENCH 8200 .3 3.0 10* 2.9 3.9 74 SALT RIVER SUMMIT 7760 .5 1.0 50* 2.6 3.0 87 SNAKE RIVER STATION 6920 .7 1.5 47* 4.8 3.6 133 SPRING CREEK DIVIDE 9000 1.7 3.1 55 3.7 4.2 88 THUMB DIVIDE 7980 .6 1.8 33* 3.6 3.2 113 TOGWOTEE PASS 9580 2.2 4.1 54 4.1 4.3 95 TWO OCEAN PLATEAU 9240 5.3 4.9 108 4.8 4.7 102 WILLOW CREEK 8380 .7 3.7 19 6.1 5.6 109 ----- ----- Basin wide percent of average 45* 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 4.0 4.3 93 4.6 3.3 139 BLACK BEAR 8170 3.9 4.8 81 7.0 5.9 119 CANYON 7870 1.0 1.5 67 3.1 2.9 107 FISHER CREEK 9100 3.6 4.8 75 6.2 5.4 115 MADISON PLATEAU 7750 1.7 2.9 59 5.5 4.0 138 NORTHEAST ENTRANCE 7350 .4 .9 44* 2.7 2.4 113 PARKER PEAK 9400 3.4 4.0 85 5.5 3.4 162 SYLVAN LAKE 8420 1.8 3.4 53 5.8 4.0 145 THUMB DIVIDE 7980 .6 1.8 33* 3.6 3.2 113 TWO OCEAN PLATEAU 9240 5.3 4.9 108 4.8 4.7 102 WHISKEY CREEK 6800 1.1 1.6 69* 4.5 3.5 129 WHITE MILL 8700 2.0 3.5 57 4.6 4.3 107 WOLVERINE 7650 1.8 1.3 138 4.1 2.7 152 ----- ----- Basin wide percent of average 77 125 WIND RIVER BURROUGHS CREEK 8750 .8 1.9 42 2.0 2.7 74 CASTLE CREEK 8400 .8 -M * 1.9 -M * COLD SPRINGS 9630 1.1 1.8 61 2.5 2.9 86 DEER PARK 9700 1.7 3.6 47 3.7 4.3 86 HOBBS PARK 10100 -M 3.3 * 4.2 3.2 131 LITTLE WARM 9370 .3 1.9 16 2.3 2.8 82 SOUTH PASS 9040 1.3 2.7 48 3.0 3.5 86 ST. LAWRENCE ALT 8620 .5 1.5 33 1.8 2.5 72 TOGWOTEE PASS 9580 2.2 4.1 54 4.1 4.3 95 TOWNSEND CREEK 8700 1.1 1.7 65 3.6 3.1 116 ----- ----- Basin wide percent of average 47 93 BIGHORN BASIN BALD MTN. 9380 4.8 4.1 117 5.0 3.5 143 BEAR TRAP MEADOW 8200 .5 1.0 50 2.5 2.5 100 BLACKWATER 9780 4.6 4.6 100 4.9 4.1 120 BONE SPRINGS DIV 9350 5.0 3.8 132 5.4 3.5 154 EVENING STAR 9200 3.3 4.7 70 6.5 4.6 141 GRAVE SPRINGS 8550 .6 1.8 33 2.8 2.6 108 KIRWIN 9550 2.6 2.8 93 3.8 2.7 141 MARQUETTE 8760 .9 -M * 4.3 3.1 139 MIDDLE POWDER 7760 1.2 2.2 55 4.9 3.6 136 OWL CREEK 8975 1.1 1.3 85 2.1 1.6 131 POWDER RIVER PASS 9480 2.5 2.2 114 3.8 2.7 141 SHELL CREEK 9580 5.2 3.7 141 4.8 3.0 160 SYLVAN LAKE 8420 1.8 3.4 53 5.8 4.0 145 SYLVAN ROAD 7120 1.0 1.4 71 3.5 3.5 100 TIMBER CREEK 7950 .7 1.6 44 4.2 2.3 183 YOUNTS PEAK 8350 1.3 2.5 52 3.0 3.0 100 ----- ----- Basin wide percent of average 88 134 SHOSHONE RIVER BLACKWATER 9780 4.6 4.6 100 4.9 4.1 120 EVENING STAR 9200 3.3 4.7 70 6.5 4.6 141 KIRWIN 9550 2.6 2.8 93 3.8 2.7 141 MARQUETTE 8760 .9 -M * 4.3 3.1 139 SYLVAN LAKE 8420 1.8 3.4 53 5.8 4.0 145 SYLVAN ROAD 7120 1.0 1.4 71 3.5 3.5 100 YOUNTS PEAK 8350 1.3 2.5 52 3.0 3.0 100 ----- ----- Basin wide percent of average 75 127 POWDER-TONGUE BEAR TRAP MEADOW 8200 .5 1.0 50 2.5 2.5 100 BIG GOOSE 7990 2.4 1.3 185 6.0 2.5 240 BONE SPRINGS DIV 9350 5.0 3.8 132 5.4 3.5 154 BURGESS JUNCTION 7880 2.4 2.4 100 5.6 3.0 187 CLOUD PEAK RESERVOIR 9860 3.1 2.5 124 5.1 3.6 142 DOME LAKE 8880 3.4 3.0 113 6.3 3.5 180 GRAVE SPRINGS 8550 .6 1.8 33 2.8 2.6 108 HANSEN SAWMILL 8360 1.0 1.3 77 2.8 2.5 112 LITTLE GOOSE 8870 2.8 -M * 6.5 -M * MIDDLE POWDER 7760 1.2 2.2 55 4.9 3.6 136 POWDER RIVER PASS 9480 2.5 2.2 114 3.8 2.7 141 SOLDIER PARK 8720 .3 -M * 3.7 -M * SUCKER CREEK 8880 4.3 2.1 205 5.6 3.3 170 TIE CREEK 6870 1.0 1.2 83 6.0 3.0 200 ----- ----- Basin wide percent of average 110 156 BELLE FOURCHE BLIND PARK 6890 .6 1.4 43 1.5 3.4 44 COLE CANYON 5910 .0 1.4 0 1.6 2.4 67 NORTH RAPID CREEK 6130 1.2 .9 133 1.2 3.1 39 ----- ----- Basin wide percent of average 49 48 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 3.4 -M * 5.0 -M * CINNABAR PARK 9574 2.0 3.0 67 4.5 4.1 110 COLUMBINE 9160 1.2 2.2 55* 3.7 3.7 100 DIVIDE PEAK 8880 2.0 2.9 69 5.1 3.9 131 ELK RIVER 8700 .8 1.3 62* 3.1 3.2 97 JOE WRIGHT 10120 2.3 4.1 56 5.5 5.0 110 NORTH FRENCH CREEK 10130 3.2 4.8 67 4.6 4.9 94 OLD BATTLE 10000 3.8 5.1 75 5.3 5.5 96 SAGE CREEK BASIN 7850 1.2 1.7 71 2.8 2.3 122 SOUTH BRUSH CREEK 8440 .8 1.4 57 3.5 3.7 95 TOWER 10500 4.0 6.7 60 5.4 6.3 86 WEBBER SPRINGS 9250 1.7 3.5 49 4.6 4.7 98 WILLOW CREEK PASS 9540 2.9 2.1 138 3.0 2.9 103 ----- ----- Basin wide percent of average 67 102 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.6 3.5 46 3.9 3.8 103 CASPER MTN. 7900 2.9 2.8 104 6.4 3.7 173 DEADMAN HILL 10220 4.3 3.3 130 4.5 3.5 129 DEER PARK 9700 1.7 3.6 47 3.7 4.3 86 LAPRELE CREEK 8375 1.5 1.8 83 3.9 2.9 134 RENO HILL 8400 3.2 2.6 123 5.1 3.6 142 ROACH 9700 2.4 2.3 104 4.4 3.4 129 SAND LAKE 10050 4.4 5.4 81 5.2 4.5 116 SOUTH PASS 9040 1.3 2.7 48 3.0 3.5 86 WINDY PEAK 7900 1.4 1.2 117 2.9 2.5 116 ----- ----- Basin wide percent of average 85 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.1 1.0 110* 2.7 2.8 96 DIVIDE PEAK 8880 2.0 2.9 69 5.1 3.9 131 OLD BATTLE 10000 3.8 5.1 75 5.3 5.5 96 SANDSTONE RS 8150 .9 1.1 82* 2.6 3.5 74 WHISKEY PARK 8950 1.1 3.2 34 4.4 4.5 98 ----- ----- Basin wide percent of average 67 100 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.6 2.2 73 2.6 2.7 96 BLIND BULL SUM 8650 1.1 3.4 32 2.5 3.5 71 EAST RIM DIVIDE 7930 .4 1.4 29 2.4 2.1 114 ELKHART PARK G.S. 9400 1.4 1.7 82 3.4 2.9 117 GROS VENTRE SUMMIT 8750 .8 2.2 36 2.7 2.7 100 GUNSIGHT PASS 9820 1.3 -M * 3.2 -M * KENDALL R.S. 7740 .7 1.5 47 2.5 2.4 104 LOOMIS PARK 8240 .4 2.0 20 2.8 2.9 97 NEW FORK LAKE 8340 1.3 1.2 108 3.1 2.4 129 POCKET CREEK 9360 1.8 -M * 3.0 -M * SNIDER BASIN 8060 .3 1.6 19 2.0 2.6 77 SPRING CREEK DIVIDE 9000 1.7 3.1 55 3.7 4.2 88 TRIPLE PEAK 8500 1.2 2.8 43 3.4 3.6 94 ----- ----- Basin wide percent of average 47 97 LOWER GREEN RIVER HAMS FORK 7840 .2 1.0 20* 2.9 2.2 132 HEWINTA 9519 .9 1.3 69 3.4 3.3 103 HICKERSON PARK 9145 .9 .8 113* 5.1 2.4 213 HOLE-IN-ROCK 9150 1.3 .9 144 4.5 2.2 205 INDIAN CREEK 9425 2.0 3.2 63 3.8 4.1 93 KELLEY R.S. 8180 1.2 2.0 60 3.6 3.4 106 STEEL CREEK PARK 10200 1.6 2.5 64 4.4 3.4 129 ----- ----- Basin wide percent of average 69 132 UPPER BEAR RIVER BUG LAKE 7950 .3 2.1 14* 2.9 3.5 83 HAYDEN FORK 9212 1.0 1.5 67* 4.9 3.7 132 KELLEY R.S. 8180 1.2 2.0 60 3.6 3.4 106 LILY LAKE 9156 .6 1.6 38 3.5 3.6 97 MONTE CRISTO 8960 1.2 2.7 44* 3.5 4.3 81 SALT RIVER SUMMIT 7760 .5 1.0 50* 2.6 3.0 87 TRIAL LAKE 9992 2.1 3.2 66 2.7 4.2 64 ----- ----- Basin wide percent of average 49* 92 ----------------------------------------------------------------------------- -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 1971-2000. 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.