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 THURSDAY: OCTOBER 24 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * 1.3 1.5 87 BLACK BEAR 8170 1.7 2.0 85* 2.1 2.9 72 BLIND BULL SUM 8650 .7 .8 88* 1.4 1.5 93 COTTONWOOD CREEK 7670 .5 .2 250* 1.6 1.9 84 EAST RIM DIVIDE 7930 .1 .0 * 1.2 1.0 120 GRAND TARGHEE 9260 2.4 4.0 60* 2.9 4.6 63 GRANITE CREEK 6770 .1 .0 * 1.1 1.4 79 GRASSY LAKE 7265 .2 .4 50* 1.5 2.5 60 GROS VENTRE SUMMIT 8750 2.1 1.2 175* 2.1 1.3 162 GUNSIGHT PASS 9820 2.2 .7 314* 2.5 1.8 139 LEWIS LAKE DIVIDE 7850 .1 .3 33* 1.4 2.4 58 PHILLIPS BENCH 8200 .6 .2 300* 1.5 1.8 83 SALT RIVER SUMMIT 7760 .1 .0 * 1.4 1.3 108 SNAKE RIVER STATION 6920 .0 .0 * 1.0 2.1 48 SPRING CREEK DIVIDE 9000 .6 .7 86* 1.1 1.6 69 THUMB DIVIDE 7980 .1 .0 * 1.2 1.7 71 TOGWOTEE PASS 9580 3.4 2.1 162* 2.3 2.0 115 TWO OCEAN PLATEAU 9240 3.2 2.5 128* 2.4 2.3 104 WILLOW CREEK 8380 .1 .4 25* 2.5 2.7 93 YOUNTS PEAK 8350 -M 1.0 * -M 1.7 * ----- ----- Basin Index (%) 118* 85 MADISON-GALLATIN BLACK BEAR 8170 1.7 2.0 85* 2.1 2.9 72 CANYON 7870 .5 .3 167* 1.7 1.5 113 MADISON PLATEAU 7750 .6 .8 75* 1.7 2.1 81 WEST YELLOWSTONE 6700 .0 .0 * 1.1 1.5 73 WHISKEY CREEK 6800 .0 .2 0* 1.2 1.8 67 ----- ----- Basin Index (%) 85* 80 YELLOWSTONE BEARTOOTH LAKE 9360 2.7 1.9 142* 1.5 1.7 88 BURNT MTN 5880 1.6 .0 * 5.2 2.8 186 CANYON 7870 .5 .3 167* 1.7 1.5 113 COLE CREEK 7850 4.7 1.7 276* 3.9 2.4 162 EVENING STAR 9200 3.1 1.6 194* 2.5 2.4 104 FISHER CREEK 9100 3.2 1.8 178* 2.4 2.7 89 NORTHEAST ENTRANCE 7350 .0 .0 * .8 1.4 57 PARKER PEAK 9400 3.2 1.8 178* 2.2 2.1 105 SYLVAN LAKE 8420 1.1 1.1 100* 2.0 2.3 87 THUMB DIVIDE 7980 .1 .0 * 1.2 1.7 71 TWO OCEAN PLATEAU 9240 3.2 2.5 128* 2.4 2.3 104 WHITE MILL 8700 2.4 1.5 160* 1.7 2.1 81 WOLVERINE 7650 .0 .0 * 1.3 1.5 87 ----- ----- Basin Index (%) 182* 107 WIND RIVER BURROUGHS CREEK 8750 -M .6 * -M 1.4 * CASTLE CREEK 8400 .0 -M * 1.8 -M * COLD SPRINGS 9630 2.3 .3 767* 3.4 1.5 227 DEER PARK 9700 2.3 1.4 164* 2.7 2.2 123 HOBBS PARK 10100 3.5 1.3 269* 3.5 1.8 194 KIRWIN 9550 3.3 1.2 275 2.6 1.5 173 LITTLE WARM 9370 2.3 .8 288* 3.3 1.4 236 OWL CREEK 8975 1.8 .4 450* 2.0 1.0 200 SOUTH PASS 9040 1.8 .7 257* 2.6 1.8 144 ST. LAWRENCE ALT 8620 1.2 .3 400* 3.1 1.4 221 TOGWOTEE PASS 9580 3.4 2.1 162* 2.3 2.0 115 TOWNSEND CREEK 8700 -M .3 * -M 1.8 * ----- ----- Basin Index (%) 258* 175 BIGHORN BASIN BALD MTN. 9380 5.1 2.3 222 3.7 2.2 168 BEAR TRAP MEADOW 8200 2.3 .3 767* 3.5 1.4 250 BONE SPRINGS DIV 9350 3.3 1.9 174 3.0 2.2 136 GRAVE SPRINGS 8550 3.4 .6 567* 4.0 1.8 222 KIRWIN 9550 3.3 1.2 275 2.6 1.5 173 MARQUETTE 8760 3.5 -M * 4.2 -M * MIDDLE POWDER 7760 5.6 .6 933* 5.1 1.9 268 OWL CREEK 8975 1.8 .4 450* 2.0 1.0 200 POWDER RIVER PASS 9480 3.1 .9 344* 3.3 1.8 183 SHELL CREEK 9580 3.8 2.4 158 2.8 2.0 140 TIMBER CREEK 7950 2.0 .2 1000* 3.5 1.6 219 ----- ----- Basin Index (%) 312* 193 SHOSHONE RIVER BLACKWATER 9780 4.4 2.0 220* 2.4 2.2 109 EVENING STAR 9200 3.1 1.6 194* 2.5 2.4 104 MARQUETTE 8760 3.5 -M * 4.2 -M * SYLVAN ROAD 7120 .0 .0 * 2.0 1.8 111 YOUNTS PEAK 8350 -M 1.0 * -M 1.7 * ----- ----- Basin Index (%) 208* 108 POWDER RIVER BEAR TRAP MEADOW 8200 2.3 .3 767* 3.5 1.4 250 CLOUD PEAK RESERVOIR 9860 3.4 1.3 262* 4.4 2.3 191 GRAVE SPRINGS 8550 3.4 .6 567* 4.0 1.8 222 HANSEN SAWMILL 8360 2.2 .1 2200* 3.6 1.5 240 MIDDLE POWDER 7760 5.6 .6 933* 5.1 1.9 268 POWDER RIVER PASS 9480 3.1 .9 344* 3.3 1.8 183 SOLDIER PARK 8720 1.8 -M * 3.4 -M * ----- ----- Basin Index (%) 526* 223 TONGUE RIVER BIG GOOSE 7990 2.5 .7 357* 4.2 2.1 200 BONE SPRINGS DIV 9350 3.3 1.9 174 3.0 2.2 136 BURGESS JUNCTION 7880 3.0 .8 375* 4.1 1.9 216 DOME LAKE 8880 2.5 1.2 208 3.8 2.2 173 LITTLE GOOSE 8870 3.3 -M * 5.1 -M * SUCKER CREEK 8880 4.3 1.1 391* 5.1 2.1 243 TIE CREEK 6870 1.6 .0 * 4.4 2.3 191 ----- ----- Basin Index (%) 302* 192 BELLE FOURCHE COLE CANYON 5910 2.1 .0 * 6.7 1.5 447 ----- ----- Basin Index (%) * 447 CHEYENNE RIVER BASIN BLIND PARK 6890 2.5 .0 * 7.1 1.8 394 NORTH RAPID CREEK 6130 3.4 .0 * 7.4 1.6 462 ----- ----- Basin Index (%) * 426 UPPER N. PLATTE ARAPAHO RIDGE 10960 2.6 2.1 124* 3.3 2.5 132 BLACKHALL MTN 9820 3.9 -M * 5.1 -M * COLUMBINE 9160 1.3 .1 1300* 3.4 2.0 170 DIVIDE PEAK 8880 2.4 .8 300* 4.9 2.4 204 JOE WRIGHT 10120 1.6 1.4 114* 4.7 2.6 181 LAPRELE CREEK 8375 .7 .2 350* 2.7 1.5 180 MED BOW 10500 4.3 -M * 5.3 -M * NORTH FRENCH CREEK 10130 -M 2.0 * -M 2.5 * NEVER SUMMER 10280 2.7 1.5 180* 3.5 -M * OLD BATTLE 10000 3.7 1.8 206* 4.4 3.1 142 RAWAH 9020 1.7 .1 1700* 4.1 1.8 228 SAGE CREEK BASIN 7850 .0 .0 * 2.9 1.8 161 SAND LAKE 10050 4.3 1.8 239* 5.0 2.4 208 SOUTH BRUSH CREEK 8440 2.2 .3 733* 4.3 1.8 239 TOWER 10500 5.0 2.3 217* 5.7 3.2 178 WEBBER SPRINGS 9250 1.6 .6 267* 3.7 2.4 154 WILLOW CREEK PASS 9540 2.2 .6 367* 2.7 1.5 180 ZIRKEL 9340 1.4 .4 350* 3.1 3.1 100 ----- ----- Basin Index (%) 239* 171 SWEETWATER DEER PARK 9700 2.3 1.4 164* 2.7 2.2 123 LARSEN CREEK 9000 .0 -M * 1.8 -M * SOUTH PASS 9040 1.8 .7 257* 2.6 1.8 144 ----- ----- Basin Index (%) 195* 132 LOWER N. PLATTE CASPER MTN. 7900 6.7 .4 1675* 6.5 2.0 325 LAPRELE CREEK 8375 .7 .2 350* 2.7 1.5 180 RENO HILL 8400 6.4 .9 711* 7.7 2.0 385 WINDY PEAK 7900 .5 .0 * 2.6 1.3 200 ----- ----- Basin Index (%) 953* 287 LARAMIE RIVER BROOKLYN LAKE 10240 1.7 .7 243* 2.8 1.8 156 CINNABAR PARK 9574 2.0 .8 250* 3.3 2.2 150 CROW CREEK 8330 .6 .0 * 2.7 1.5 180 DEADMAN HILL 10220 2.9 1.5 193* 3.7 1.9 195 RAWAH 9020 1.7 .1 1700* 4.1 1.8 228 ROACH 9700 -M .5 * -M 1.8 * ----- ----- Basin Index (%) 287* 180 S. PLATTE BLACK MOUNTAIN 8920 1.4 -M * 2.7 -M * CROW CREEK 8330 .6 .0 * 2.7 1.5 180 DEADMAN HILL 10220 2.9 1.5 193* 3.7 1.9 195 ----- ----- Basin Index (%) 233* 188 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .8 .0 * 3.1 1.4 221 DIVIDE PEAK 8880 2.4 .8 300* 4.9 2.4 204 ELK RIVER 8700 .0 .0 * 3.1 1.9 163 LITTLE SNAKE RIVER 8915 1.8 .7 257* 4.7 3.5 134 OLD BATTLE 10000 3.7 1.8 206* 4.4 3.1 142 SAGE CREEK BASIN 7850 .0 .0 * 2.9 1.8 161 SANDSTONE RS 8150 1.1 .0 * 3.4 1.6 212 WHISKEY PARK 8950 3.3 .4 825* 5.2 2.1 248 ----- ----- Basin Index (%) 354* 178 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.2 .8 150* 1.5 1.4 107 BLIND BULL SUM 8650 .7 .8 88* 1.4 1.5 93 EAST RIM DIVIDE 7930 .1 .0 * 1.2 1.0 120 ELKHART PARK G.S. 9400 1.3 .6 217* 2.0 1.4 143 GROS VENTRE SUMMIT 8750 2.1 1.2 175* 2.1 1.3 162 GUNSIGHT PASS 9820 2.2 .7 314* 2.5 1.8 139 KENDALL R.S. 7740 .0 .0 * 1.3 1.1 118 LOOMIS PARK 8240 .3 .2 150* 1.4 1.3 108 NEW FORK LAKE 8340 .1 .0 * .7 1.0 70 POCKET CREEK 9360 2.3 -M * 2.5 -M * SNIDER BASIN 8060 .1 .0 * .9 1.0 90 SPRING CREEK DIVIDE 9000 .6 .7 86* 1.1 1.6 69 TRIPLE PEAK 8500 1.0 .5 200* 1.3 1.7 76 ----- ----- Basin Index (%) 176* 108 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 1.8 -M * BUCK PASTURE 9700 .2 -M * 2.3 -M * EF BLACKS FORK GS 9360 .2 -M * 1.8 -M * HAMS FORK 7840 .0 .0 * 1.5 1.0 150 HEWINTA 9519 .0 .0 * 2.0 1.6 125 HICKERSON PARK 9145 .1 .0 * 1.4 1.4 100 HOLE-IN-ROCK 9150 .0 .0 * 1.3 1.5 87 INDIAN CREEK 9425 .8 1.1 73* 1.6 1.6 100 KELLEY R.S. 8180 .6 .2 300* 1.6 1.4 114 SPIRIT LK 10235 .8 -M * 2.0 -M * STEEL CREEK PARK 10200 .4 .9 44* 2.4 1.8 133 ----- ----- Basin Index (%) 86* 115 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 1.7 -M * BUG LAKE 7950 1.0 .0 * 1.4 1.7 82 BURTS MILLER RANCH 8000 .2 -M * .9 -M * CHALK CREEK #1 8993 1.3 .7 186* 2.4 2.3 104 HAYDEN FORK 9212 .1 .0 * 2.5 2.0 125 KELLEY R.S. 8180 .6 .2 300* 1.6 1.4 114 LILY LAKE 9156 .0 .5 0* 2.5 1.9 132 MONTE CRISTO 8960 .1 .0 * 1.5 2.1 71 SALT RIVER SUMMIT 7760 .1 .0 * 1.4 1.3 108 ----- ----- Basin Index (%) 229* 105 ----------------------------------------------------------------------------- -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.