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: NOVEMBER 18 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.5 2.4 146 6.6 4.1 161 COTTONWOOD CREEK 7670 1.9 2.7 70 6.4 5.7 112 GRAND TARGHEE 9260 8.1 -M * 7.9 -M * GRANITE CREEK 6770 2.0 1.9 105 4.0 3.6 111 GRASSY LAKE 7265 3.0 4.5 67 8.5 6.6 129 GROS VENTRE SUMMIT 8750 1.8 2.7 67 3.5 3.2 109 GUNSIGHT PASS 9820 2.5 -M * 4.2 -M * LEWIS LAKE DIVIDE 7850 3.5 4.5 78 8.5 6.6 129 PHILLIPS BENCH 8200 3.1 4.0 78 5.6 4.9 114 SALT RIVER SUMMIT 7760 1.6 1.4 114* 3.7 3.5 106 SNAKE RIVER STATION 6920 2.6 2.2 118 6.8 4.4 155 SPRING CREEK DIVIDE 9000 3.4 4.2 81 5.2 5.1 102 THUMB DIVIDE 7980 2.7 2.4 112 5.4 3.8 142 TOGWOTEE PASS 9580 4.9 5.0 98 6.6 5.2 127 TWO OCEAN PLATEAU 9240 8.5 5.9 144 7.2 5.8 124 WILLOW CREEK 8380 2.6 4.9 53 7.9 6.7 118 ----- ----- Basin wide percent of average 93 124 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 6.0 4.9 122 6.4 4.0 160 BLACK BEAR 8170 6.8 6.1 111 9.6 7.3 132 CANYON 7870 2.0 1.9 105 3.9 3.5 111 FISHER CREEK 9100 6.7 5.8 116 9.3 6.7 139 MADISON PLATEAU 7750 4.1 3.6 114 8.1 4.9 165 NORTHEAST ENTRANCE 7350 1.3 1.3 100 3.5 2.9 121 PARKER PEAK 9400 5.4 4.7 115 7.3 4.0 182 SYLVAN LAKE 8420 3.4 4.2 81 7.4 4.9 151 THUMB DIVIDE 7980 2.7 2.4 112 5.4 3.8 142 TWO OCEAN PLATEAU 9240 8.5 5.9 144 7.2 5.8 124 WHISKEY CREEK 6800 2.9 2.2 132 6.3 4.2 150 WHITE MILL 8700 3.9 4.2 93 6.3 5.3 119 WOLVERINE 7650 3.6 1.6 225 4.8 3.2 150 ----- ----- Basin wide percent of average 117 141 WIND RIVER BURROUGHS CREEK 8750 2.5 2.5 100 3.5 3.4 103 CASTLE CREEK 8400 1.4 -M * 2.5 -M * COLD SPRINGS 9630 1.5 2.3 65 2.9 3.3 88 DEER PARK 9700 2.2 3.7 59 5.0 5.2 96 HOBBS PARK 10100 3.7 4.0 92 4.0 3.6 111 LITTLE WARM 9370 1.1 2.3 48 3.1 3.4 91 SOUTH PASS 9040 2.6 3.4 76 4.0 4.2 95 ST. LAWRENCE ALT 8620 .6 1.9 32 2.1 2.8 75 TOGWOTEE PASS 9580 4.9 5.0 98 6.6 5.2 127 TOWNSEND CREEK 8700 1.5 2.1 71 4.0 3.5 114 ----- ----- Basin wide percent of average 76 102 BIGHORN BASIN BALD MTN. 9380 5.5 4.6 120 5.5 4.1 134 BEAR TRAP MEADOW 8200 1.3 1.2 108 3.3 2.8 118 BLACKWATER 9780 6.9 5.4 128 6.6 5.0 132 BONE SPRINGS DIV 9350 5.9 4.3 137 6.0 3.9 154 EVENING STAR 9200 5.6 5.5 102 8.7 5.7 153 GRAVE SPRINGS 8550 1.0 2.1 48 3.2 3.0 107 KIRWIN 9550 4.3 3.1 139 5.6 3.2 175 MARQUETTE 8760 1.0 -M * 4.9 3.4 144 MIDDLE POWDER 7760 1.9 2.5 76 5.4 4.0 135 OWL CREEK 8975 1.4 1.5 93 2.5 1.8 139 POWDER RIVER PASS 9480 3.3 2.4 138 4.9 3.2 153 SHELL CREEK 9580 6.1 4.1 149 5.7 3.5 163 SYLVAN LAKE 8420 3.4 4.2 81 7.4 4.9 151 SYLVAN ROAD 7120 2.1 1.9 111 4.5 4.5 100 TIMBER CREEK 7950 1.1 2.0 55 4.6 2.6 177 YOUNTS PEAK 8350 3.8 3.0 127 5.1 3.7 138 ----- ----- Basin wide percent of average 112 141 SHOSHONE RIVER BLACKWATER 9780 6.9 5.4 128 6.6 5.0 132 EVENING STAR 9200 5.6 5.5 102 8.7 5.7 153 KIRWIN 9550 4.3 3.1 139 5.6 3.2 175 MARQUETTE 8760 1.0 -M * 4.9 3.4 144 SYLVAN LAKE 8420 3.4 4.2 81 7.4 4.9 151 SYLVAN ROAD 7120 2.1 1.9 111 4.5 4.5 100 YOUNTS PEAK 8350 3.8 3.0 127 5.1 3.7 138 ----- ----- Basin wide percent of average 113 141 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.3 1.2 108 3.3 2.8 118 BIG GOOSE 7990 3.0 1.6 188 6.6 2.7 244 BONE SPRINGS DIV 9350 5.9 4.3 137 6.0 3.9 154 BURGESS JUNCTION 7880 3.1 2.7 115 6.1 3.4 179 CLOUD PEAK RESERVOIR 9860 4.4 2.8 157 6.2 4.1 151 DOME LAKE 8880 4.0 3.3 121 7.0 4.0 175 GRAVE SPRINGS 8550 1.0 2.1 48 3.2 3.0 107 HANSEN SAWMILL 8360 1.7 1.4 121 3.5 2.7 130 LITTLE GOOSE 8870 3.7 -M * 7.3 -M * MIDDLE POWDER 7760 1.9 2.5 76 5.4 4.0 135 POWDER RIVER PASS 9480 3.3 2.4 138 4.9 3.2 153 SOLDIER PARK 8720 2.5 -M * 4.5 -M * SUCKER CREEK 8880 5.2 2.5 208 6.3 3.7 170 TIE CREEK 6870 1.4 1.1 127 6.5 3.2 203 ----- ----- Basin wide percent of average 130 160 BELLE FOURCHE BLIND PARK 6890 1.1 1.5 73 2.0 3.8 53 COLE CANYON 5910 .3 1.6 19 1.9 2.6 73 NORTH RAPID CREEK 6130 1.5 1.1 136 1.4 3.4 41 ----- ----- Basin wide percent of average 69 54 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 5.8 -M * 7.6 -M * CINNABAR PARK 9574 3.0 3.8 79 5.6 4.9 114 COLUMBINE 9160 3.0 3.1 97 5.5 4.5 122 DIVIDE PEAK 8880 3.5 3.5 100 6.7 4.6 146 ELK RIVER 8700 2.3 1.8 128* 4.4 3.8 116 JOE WRIGHT 10120 3.4 4.8 71 6.8 5.9 115 NORTH FRENCH CREEK 10130 4.4 5.7 77 5.5 5.8 95 OLD BATTLE 10000 6.3 6.3 100 8.3 6.6 126 SAGE CREEK BASIN 7850 2.1 2.0 105 3.8 2.7 141 SOUTH BRUSH CREEK 8440 1.4 1.9 74 4.2 4.2 100 TOWER 10500 6.0 8.6 70 8.5 7.6 112 WEBBER SPRINGS 9250 4.2 4.5 93 7.2 5.6 129 WILLOW CREEK PASS 9540 2.3 2.6 88 3.7 3.4 109 ----- ----- Basin wide percent of average 86 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.8 4.2 67 5.0 4.6 109 CASPER MTN. 7900 3.0 3.4 88 6.6 4.2 157 DEADMAN HILL 10220 5.6 3.9 144 5.6 4.1 137 DEER PARK 9700 2.2 3.7 59 5.0 5.2 96 LAPRELE CREEK 8375 1.7 2.2 77 4.0 3.3 121 RENO HILL 8400 3.1 3.1 100 5.1 4.1 124 ROACH 9700 3.7 2.9 128 5.8 4.0 145 SAND LAKE 10050 5.7 6.6 86 6.4 5.3 121 SOUTH PASS 9040 2.6 3.4 76 4.0 4.2 95 WINDY PEAK 7900 1.6 1.5 107 3.1 2.9 107 ----- ----- Basin wide percent of average 92 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.9 1.3 223 4.2 3.3 127 DIVIDE PEAK 8880 3.5 3.5 100 6.7 4.6 146 OLD BATTLE 10000 6.3 6.3 100 8.3 6.6 126 SANDSTONE RS 8150 1.5 1.4 107* 3.5 4.2 83 WHISKEY PARK 8950 3.2 4.1 78 6.7 5.5 122 ----- ----- Basin wide percent of average 105 121 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.6 2.7 96 3.5 3.2 109 BLIND BULL SUM 8650 2.6 4.4 59 3.7 4.4 84 EAST RIM DIVIDE 7930 1.2 1.9 63 3.1 2.6 119 ELKHART PARK G.S. 9400 2.1 2.2 95 4.2 3.3 127 GROS VENTRE SUMMIT 8750 1.8 2.7 67 3.5 3.2 109 GUNSIGHT PASS 9820 2.5 -M * 4.2 -M * KENDALL R.S. 7740 2.0 2.0 100 3.9 3.0 130 LOOMIS PARK 8240 1.7 2.7 63 4.1 3.5 117 NEW FORK LAKE 8340 2.2 1.7 129 3.8 2.9 131 POCKET CREEK 9360 2.4 -M * 3.4 -M * SNIDER BASIN 8060 1.5 2.2 68 2.9 3.2 91 SPRING CREEK DIVIDE 9000 3.4 4.2 81 5.2 5.1 102 TRIPLE PEAK 8500 3.0 3.8 79 5.3 4.5 118 ----- ----- Basin wide percent of average 79 111 LOWER GREEN RIVER HAMS FORK 7840 1.1 1.4 79 3.3 2.6 127 HEWINTA 9519 1.1 1.5 73 4.3 3.8 113 HICKERSON PARK 9145 1.4 1.0 140 5.2 2.7 193 HOLE-IN-ROCK 9150 1.4 1.0 140 4.7 2.5 188 INDIAN CREEK 9425 3.7 4.2 88 4.9 4.9 100 KELLEY R.S. 8180 2.2 2.6 85 4.8 4.1 117 STEEL CREEK PARK 10200 2.1 2.9 72 4.8 4.0 120 ----- ----- Basin wide percent of average 89 130 UPPER BEAR RIVER BUG LAKE 7950 2.0 2.7 74 4.6 4.2 110 HAYDEN FORK 9212 1.8 2.0 90 5.9 4.5 131 KELLEY R.S. 8180 2.2 2.6 85 4.8 4.1 117 LILY LAKE 9156 1.2 2.0 60 4.2 4.3 98 MONTE CRISTO 8960 3.1 3.4 91 5.3 5.1 104 SALT RIVER SUMMIT 7760 1.6 1.4 114* 3.7 3.5 106 TRIAL LAKE 9992 3.6 3.9 92 4.3 4.9 88 ----- ----- Basin wide percent of average 86 107 ----------------------------------------------------------------------------- -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.