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 1 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .9 .2 450* 2.1 2.1 100 BLACK BEAR 8170 3.0 2.9 103* 3.2 4.0 80 BLIND BULL SUM 8650 1.7 1.4 121* 2.3 2.1 110 COTTONWOOD CREEK 7670 2.3 .9 256* 3.6 2.7 133 EAST RIM DIVIDE 7930 .5 .3 167* 1.7 1.4 121 GRAND TARGHEE 9260 5.2 4.7 111 5.4 5.2 104 GRANITE CREEK 6770 .8 .2 400* 2.0 2.0 100 GRASSY LAKE 7265 2.1 1.2 175* 3.6 3.5 103 GROS VENTRE SUMMIT 8750 2.7 1.7 159 2.6 1.8 144 GUNSIGHT PASS 9820 2.8 1.0 280* 3.1 2.2 141 LEWIS LAKE DIVIDE 7850 .7 1.0 70* 2.1 3.3 64 PHILLIPS BENCH 8200 2.7 1.3 208* 3.6 2.4 150 SALT RIVER SUMMIT 7760 1.2 .2 600* 2.8 1.9 147 SNAKE RIVER STATION 6920 .8 .2 400* 1.9 2.6 73 SPRING CREEK DIVIDE 9000 2.1 1.2 175* 2.6 2.3 113 THUMB DIVIDE 7980 .4 .4 100* 1.7 2.2 77 TOGWOTEE PASS 9580 4.6 2.7 170 3.5 2.8 125 TWO OCEAN PLATEAU 9240 4.5 3.2 141 3.2 3.1 103 WILLOW CREEK 8380 2.5 .9 278* 5.2 3.8 137 YOUNTS PEAK 8350 -M 1.5 * -M 2.2 * ----- ----- Basin Index (%) 162* 109 MADISON-GALLATIN BLACK BEAR 8170 3.0 2.9 103* 3.2 4.0 80 CANYON 7870 .9 .6 150* 2.1 1.9 111 MADISON PLATEAU 7750 .3 1.4 21* 2.2 2.9 76 WEST YELLOWSTONE 6700 .1 .1 100* 1.3 1.9 68 WHISKEY CREEK 6800 .4 .5 80* 1.4 2.4 58 ----- ----- Basin Index (%) 85* 78 YELLOWSTONE BEARTOOTH LAKE 9360 3.2 2.7 119 1.9 2.3 83 BURNT MTN 5880 1.7 .0 * 5.9 3.5 169 CANYON 7870 .9 .6 150* 2.1 1.9 111 COLE CREEK 7850 4.9 2.8 175 4.1 3.1 132 EVENING STAR 9200 3.8 2.4 158* 3.4 3.3 103 FISHER CREEK 9100 3.8 2.7 141* 2.8 3.6 78 NORTHEAST ENTRANCE 7350 .5 .0 * 1.2 1.8 67 PARKER PEAK 9400 4.0 2.7 148 3.1 2.6 119 SYLVAN LAKE 8420 2.6 1.7 153* 3.9 3.1 126 THUMB DIVIDE 7980 .4 .4 100* 1.7 2.2 77 TWO OCEAN PLATEAU 9240 4.5 3.2 141 3.2 3.1 103 WHITE MILL 8700 2.9 2.2 132* 2.3 2.9 79 WOLVERINE 7650 .2 .0 * 1.2 1.9 63 ----- ----- Basin Index (%) 156* 104 WIND RIVER BURROUGHS CREEK 8750 -M 1.2 * -M 1.9 * CASTLE CREEK 8400 .3 -M * 2.0 -M * COLD SPRINGS 9630 2.7 .8 338 4.0 1.9 211 DEER PARK 9700 2.8 1.7 165 3.3 3.2 103 HOBBS PARK 10100 4.0 2.0 200 4.2 2.4 175 KIRWIN 9550 3.6 1.7 212 2.7 2.0 135 LITTLE WARM 9370 2.7 1.2 225 3.3 1.9 174 OWL CREEK 8975 2.1 .8 262 2.3 1.3 177 SOUTH PASS 9040 2.2 1.3 169* 3.0 2.4 125 ST. LAWRENCE ALT 8620 1.3 .9 144 3.5 1.8 194 TOGWOTEE PASS 9580 4.6 2.7 170 3.5 2.8 125 TOWNSEND CREEK 8700 1.6 1.0 160 3.4 2.4 142 ----- ----- Basin Index (%) 196 150 BIGHORN BASIN BALD MTN. 9380 5.5 3.1 177 4.0 2.8 143 BEAR TRAP MEADOW 8200 2.3 .5 460* 3.7 1.8 206 BONE SPRINGS DIV 9350 3.5 2.8 125 3.2 2.8 114 GRAVE SPRINGS 8550 3.6 .9 400* 4.3 2.3 187 KIRWIN 9550 3.6 1.7 212 2.7 2.0 135 MARQUETTE 8760 3.5 -M * 4.4 -M * MIDDLE POWDER 7760 5.3 1.1 482* 5.1 2.6 196 OWL CREEK 8975 2.1 .8 262 2.3 1.3 177 POWDER RIVER PASS 9480 3.4 1.4 243 3.5 2.2 159 SHELL CREEK 9580 4.0 2.9 138 3.0 2.4 125 TIMBER CREEK 7950 2.2 .7 314 3.8 2.1 181 ----- ----- Basin Index (%) 223 160 SHOSHONE RIVER BLACKWATER 9780 4.7 2.8 168 2.7 2.8 96 EVENING STAR 9200 3.8 2.4 158* 3.4 3.3 103 MARQUETTE 8760 3.5 -M * 4.4 -M * SYLVAN ROAD 7120 1.0 .3 333* 3.0 2.3 130 YOUNTS PEAK 8350 -M 1.5 * -M 2.2 * ----- ----- Basin Index (%) 173* 108 POWDER RIVER BEAR TRAP MEADOW 8200 2.3 .5 460* 3.7 1.8 206 CLOUD PEAK RESERVOIR 9860 3.6 1.9 189 4.5 2.8 161 GRAVE SPRINGS 8550 3.6 .9 400* 4.3 2.3 187 HANSEN SAWMILL 8360 2.5 .4 625* 3.8 1.9 200 MIDDLE POWDER 7760 5.3 1.1 482* 5.1 2.6 196 POWDER RIVER PASS 9480 3.4 1.4 243 3.5 2.2 159 SOLDIER PARK 8720 2.0 -M * 3.7 -M * ----- ----- Basin Index (%) 334* 183 TONGUE RIVER BIG GOOSE 7990 2.3 1.0 230* 4.3 2.6 165 BONE SPRINGS DIV 9350 3.5 2.8 125 3.2 2.8 114 BURGESS JUNCTION 7880 2.8 1.4 200 4.3 2.4 179 DOME LAKE 8880 2.3 2.0 115 3.8 2.8 136 LITTLE GOOSE 8870 3.1 -M * 5.2 -M * SUCKER CREEK 8880 4.3 1.6 269 5.1 2.7 189 TIE CREEK 6870 1.3 .2 650* 4.6 2.8 164 ----- ----- Basin Index (%) 183 157 BELLE FOURCHE COLE CANYON 5910 1.1 .0 * 6.9 2.1 329 ----- ----- Basin Index (%) * 329 CHEYENNE RIVER BASIN BLIND PARK 6890 1.7 .3 567* 7.3 2.4 304 NORTH RAPID CREEK 6130 3.0 .3 1000* 7.5 2.2 341 ----- ----- Basin Index (%) 783* 322 UPPER N. PLATTE ARAPAHO RIDGE 10960 3.7 3.0 123 4.4 3.4 129 BLACKHALL MTN 9820 4.5 -M * 5.9 -M * COLUMBINE 9160 2.0 .6 333* 4.6 2.8 164 DIVIDE PEAK 8880 2.6 1.5 173* 5.5 3.4 162 JOE WRIGHT 10120 2.3 2.6 88 5.9 3.7 159 LAPRELE CREEK 8375 1.0 .4 250* 2.8 2.1 133 MED BOW 10500 5.2 -M * 6.5 -M * NORTH FRENCH CREEK 10130 -M 2.8 * -M 3.4 * NEVER SUMMER 10280 3.7 2.4 154 4.3 -M * OLD BATTLE 10000 4.6 2.6 177* 5.5 4.4 125 RAWAH 9020 1.9 .4 475* 4.7 2.5 188 SAGE CREEK BASIN 7850 .7 .4 175* 3.4 2.5 136 SAND LAKE 10050 5.2 2.6 200* 5.7 3.3 173 SOUTH BRUSH CREEK 8440 2.4 .6 400* 4.5 2.5 180 TOWER 10500 6.9 3.5 197* 7.5 4.6 163 WEBBER SPRINGS 9250 2.2 1.2 183* 4.3 3.4 126 WILLOW CREEK PASS 9540 2.8 1.3 215* 3.2 2.1 152 ZIRKEL 9340 1.4 1.0 140* 4.2 3.9 108 ----- ----- Basin Index (%) 180* 148 SWEETWATER DEER PARK 9700 2.8 1.7 165 3.3 3.2 103 LARSEN CREEK 9000 .3 -M * 2.2 -M * SOUTH PASS 9040 2.2 1.3 169* 3.0 2.4 125 ----- ----- Basin Index (%) 167* 112 LOWER N. PLATTE CASPER MTN. 7900 6.8 1.2 567* 6.6 2.9 228 LAPRELE CREEK 8375 1.0 .4 250* 2.8 2.1 133 RENO HILL 8400 6.2 1.3 477* 7.8 2.8 279 WINDY PEAK 7900 .8 .4 200* 3.2 1.9 168 ----- ----- Basin Index (%) 448* 210 LARAMIE RIVER BROOKLYN LAKE 10240 2.2 1.4 157* 3.2 2.4 133 CINNABAR PARK 9574 2.7 1.2 225* 4.2 3.0 140 CROW CREEK 8330 .8 .1 800* 3.3 2.1 157 DEADMAN HILL 10220 3.4 2.2 155 4.4 2.5 176 RAWAH 9020 1.9 .4 475* 4.7 2.5 188 ROACH 9700 -M 1.2 * -M 2.6 * ----- ----- Basin Index (%) 208* 158 S. PLATTE BLACK MOUNTAIN 8920 1.8 -M * 3.1 -M * CROW CREEK 8330 .8 .1 800* 3.3 2.1 157 DEADMAN HILL 10220 3.4 2.2 155 4.4 2.5 176 ----- ----- Basin Index (%) 183* 167 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.3 .0 * 3.8 2.1 181 DIVIDE PEAK 8880 2.6 1.5 173* 5.5 3.4 162 ELK RIVER 8700 1.1 .2 550* 4.0 2.6 154 LITTLE SNAKE RIVER 8915 2.2 .9 244* 6.0 4.8 125 OLD BATTLE 10000 4.6 2.6 177* 5.5 4.4 125 SAGE CREEK BASIN 7850 .7 .4 175* 3.4 2.5 136 SANDSTONE RS 8150 .9 .0 * 4.1 2.4 171 WHISKEY PARK 8950 4.3 1.0 430* 6.5 3.0 217 ----- ----- Basin Index (%) 268* 154 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.8 1.4 129 1.9 1.9 100 BLIND BULL SUM 8650 1.7 1.4 121* 2.3 2.1 110 EAST RIM DIVIDE 7930 .5 .3 167* 1.7 1.4 121 ELKHART PARK G.S. 9400 1.9 1.0 190* 2.2 2.0 110 GROS VENTRE SUMMIT 8750 2.7 1.7 159 2.6 1.8 144 GUNSIGHT PASS 9820 2.8 1.0 280* 3.1 2.2 141 KENDALL R.S. 7740 .3 .3 100* 1.6 1.6 100 LOOMIS PARK 8240 1.1 .6 183* 2.3 1.8 128 NEW FORK LAKE 8340 .6 .5 120* .8 1.4 57 POCKET CREEK 9360 2.8 -M * 3.0 -M * SNIDER BASIN 8060 1.0 .2 500* 1.8 1.5 120 SPRING CREEK DIVIDE 9000 2.1 1.2 175* 2.6 2.3 113 TRIPLE PEAK 8500 2.6 1.2 217* 2.5 2.4 104 ----- ----- Basin Index (%) 177* 113 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 2.5 -M * BUCK PASTURE 9700 .9 -M * 3.2 -M * EF BLACKS FORK GS 9360 .8 -M * 2.5 -M * HAMS FORK 7840 .6 .2 300* 2.6 1.5 173 HEWINTA 9519 .4 .0 * 2.8 2.2 127 HICKERSON PARK 9145 1.3 .2 650* 2.6 2.1 124 HOLE-IN-ROCK 9150 .6 .2 300* 2.2 2.1 105 INDIAN CREEK 9425 1.8 2.0 90* 2.9 2.4 121 KELLEY R.S. 8180 1.4 .6 233* 2.9 2.0 145 SPIRIT LK 10235 1.8 -M * 3.5 -M * STEEL CREEK PARK 10200 .1 1.5 7* 3.2 2.5 128 ----- ----- Basin Index (%) 132* 130 UPPER BEAR RIVER BEAR RIVER RS 8777 .6 -M * 2.5 -M * BUG LAKE 7950 .6 .4 150* 2.1 2.3 91 BURTS MILLER RANCH 8000 .6 -M * 1.3 -M * CHALK CREEK #1 8993 2.5 1.6 156* 3.6 3.3 109 HAYDEN FORK 9212 .6 .3 200* 3.4 2.7 126 KELLEY R.S. 8180 1.4 .6 233* 2.9 2.0 145 LILY LAKE 9156 .8 .7 114* 3.5 2.6 135 MONTE CRISTO 8960 1.4 .6 233* 2.8 3.0 93 SALT RIVER SUMMIT 7760 1.2 .2 600* 2.8 1.9 147 ----- ----- Basin Index (%) 193* 119 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.