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: MAY 24 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .3 .0 * 30.3 24.9 122 BLACK BEAR 8170 39.0 31.8 123 48.6 45.2 108 BLIND BULL SUM 8650 37.7 17.6 214 26.1 23.7 110 COTTONWOOD CREEK 7670 16.1 2.4 671 39.5 30.5 130 EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.5 123 GRAND TARGHEE 9260 47.2 41.3 114 44.9 37.6 119 GRANITE CREEK 6770 4.8 .0 * 27.6 23.3 118 GRASSY LAKE 7265 19.9 13.2 151 46.5 42.4 110 GROS VENTRE SUMMIT 8750 5.2 2.8 186 16.7 16.4 102 GUNSIGHT PASS 9820 14.9 8.0 186 22.3 18.0 124 LEWIS LAKE DIVIDE 7850 27.3 19.4 141 46.8 41.5 113 PHILLIPS BENCH 8200 25.5 16.0 159 39.8 33.3 120 SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.2 110 SNAKE RIVER STATION 6920 .0 .0 * 30.4 27.0 113 SPRING CREEK DIVIDE 9000 30.1 17.5 172 36.6 28.5 128 THUMB DIVIDE 7980 3.3 .0 * 23.7 23.1 103 TOGWOTEE PASS 9580 28.8 22.6 127 37.6 30.2 125 TWO OCEAN PLATEAU 9240 39.0 27.7 141 40.0 33.4 120 WILLOW CREEK 8380 21.7 12.4 175 47.3 41.5 114 YOUNTS PEAK 8350 -M 10.2 * -M 20.0 * ----- ----- Basin Index (%) 155 116 MADISON-GALLATIN BLACK BEAR 8170 39.0 31.8 123 48.6 45.2 108 CANYON 7870 3.1 .4 775* 20.3 20.2 100 MADISON PLATEAU 7750 16.6 12.4 134 30.8 32.1 96 WEST YELLOWSTONE 6700 .0 .0 * 19.5 17.8 110 WHISKEY CREEK 6800 6.5 3.1 210 26.0 24.7 105 ----- ----- Basin Index (%) 137 104 YELLOWSTONE BEARTOOTH LAKE 9360 31.2 20.6 151 34.9 24.5 142 BURNT MTN 5880 .0 .0 * 26.2 19.8 132 CANYON 7870 3.1 .4 775* 20.3 20.2 100 COLE CREEK 7850 24.4 14.2 172 22.5 20.1 112 EVENING STAR 9200 36.0 22.2 162 46.8 33.9 138 FISHER CREEK 9100 -M 31.6 * 47.3 38.9 122 NORTHEAST ENTRANCE 7350 .0 .0 * 19.5 15.9 123 PARKER PEAK 9400 31.6 18.9 167 35.6 22.9 155 SYLVAN LAKE 8420 14.9 13.2 113 35.3 28.2 125 THUMB DIVIDE 7980 3.3 .0 * 23.7 23.1 103 TWO OCEAN PLATEAU 9240 39.0 27.7 141 40.0 33.4 120 WHITE MILL 8700 31.9 21.2 150 35.1 29.4 119 WOLVERINE 7650 -M .0 * 21.1 15.8 134 ----- ----- Basin Index (%) 156 125 WIND RIVER BURROUGHS CREEK 8750 -M 6.8 * -M 20.3 * CASTLE CREEK 8400 .0 -M * 15.1 -M * COLD SPRINGS 9630 .0 .0 * 15.5 14.7 105 DEER PARK 9700 -M 8.6 * 24.3 26.4 92 HOBBS PARK 10100 12.4 11.3 110 18.6 19.7 94 KIRWIN 9550 14.5 6.5 223 22.6 16.3 139 LITTLE WARM 9370 4.5 .6 750* 20.3 17.8 114 OWL CREEK 8975 .1 .0 * 9.9 10.0 99 SOUTH PASS 9040 6.9 3.3 209 19.2 22.8 84 ST. LAWRENCE ALT 8620 .2 .0 * 12.9 13.8 93 TOGWOTEE PASS 9580 28.8 22.6 127 37.6 30.2 125 TOWNSEND CREEK 8700 .0 .0 * 15.3 17.5 87 ----- ----- Basin Index (%) 152* 104 BIGHORN BASIN BALD MTN. 9380 29.0 17.6 165 25.6 22.6 113 BEAR TRAP MEADOW 8200 .0 .0 * 14.7 13.1 112 BONE SPRINGS DIV 9350 21.4 13.0 165 22.5 21.4 105 GRAVE SPRINGS 8550 4.2 .1 4200* 15.9 15.4 103 KIRWIN 9550 14.5 6.5 223 22.6 16.3 139 MARQUETTE 8760 9.5 -M * 18.2 -M * MIDDLE POWDER 7760 7.8 1.6 488 17.8 16.6 107 OWL CREEK 8975 .1 .0 * 9.9 10.0 99 POWDER RIVER PASS 9480 9.4 2.5 376 20.5 17.9 115 SHELL CREEK 9580 20.1 14.1 143 21.7 19.1 114 TIMBER CREEK 7950 .2 .0 * 14.2 12.7 112 ----- ----- Basin Index (%) 193 112 SHOSHONE RIVER BLACKWATER 9780 30.5 23.4 130 34.9 26.5 132 EVENING STAR 9200 36.0 22.2 162 46.8 33.9 138 MARQUETTE 8760 9.5 -M * 18.2 -M * SYLVAN ROAD 7120 .0 .0 * 25.6 20.6 124 YOUNTS PEAK 8350 -M 10.2 * -M 20.0 * ----- ----- Basin Index (%) 146* 132 POWDER RIVER BEAR TRAP MEADOW 8200 .0 .0 * 14.7 13.1 112 CLOUD PEAK RESERVOIR 9860 22.5 12.6 179 26.6 20.3 131 GRAVE SPRINGS 8550 4.2 .1 4200* 15.9 15.4 103 HANSEN SAWMILL 8360 .2 .0 * 17.1 13.4 128 MIDDLE POWDER 7760 7.8 1.6 488 17.8 16.6 107 POWDER RIVER PASS 9480 9.4 2.5 376 20.5 17.9 115 SOLDIER PARK 8720 4.9 -M * 17.5 -M * ----- ----- Basin Index (%) 262* 116 TONGUE RIVER BIG GOOSE 7990 7.9 1.3 608 20.3 17.6 115 BONE SPRINGS DIV 9350 21.4 13.0 165 22.5 21.4 105 BURGESS JUNCTION 7880 11.9 5.4 220 21.2 17.5 121 DOME LAKE 8880 13.8 3.2 431 21.6 19.6 110 LITTLE GOOSE 8870 10.0 -M * 23.5 -M * SUCKER CREEK 8880 13.6 6.3 216 25.6 20.8 123 TIE CREEK 6870 .2 .0 * 19.8 17.9 111 ----- ----- Basin Index (%) 236 114 BELLE FOURCHE COLE CANYON 5910 .0 .0 * 18.1 15.2 119 ----- ----- Basin Index (%) * 119 CHEYENNE RIVER BASIN BLIND PARK 6890 .0 .0 * 20.9 17.4 120 NORTH RAPID CREEK 6130 .0 .0 * 20.2 15.0 135 ----- ----- Basin Index (%) * 127 UPPER N. PLATTE ARAPAHO RIDGE 10960 27.7 14.7 188 34.6 28.8 120 BLACKHALL MTN 9820 34.4 -M * 44.0 -M * COLUMBINE 9160 19.3 .0 * 41.8 30.8 136 DIVIDE PEAK 8880 2.2 2.2 100 29.8 26.7 112 JOE WRIGHT 10120 30.8 19.1 161 41.7 33.2 126 LAPRELE CREEK 8375 .2 .0 * 17.8 17.2 103 MED BOW 10500 -M -M * 49.0 -M * NORTH FRENCH CREEK 10130 37.4 26.9 139 43.6 34.2 127 NEVER SUMMER 10280 25.4 18.4 138 27.3 -M * OLD BATTLE 10000 37.2 30.7 121 43.8 42.5 103 RAWAH 9020 1.0 .0 * 23.8 19.1 125 SAGE CREEK BASIN 7850 .1 .0 * 14.6 17.6 83 SAND LAKE 10050 38.7 25.8 150 42.1 32.3 130 SOUTH BRUSH CREEK 8440 .1 .0 * 19.8 20.4 97 TOWER 10500 51.7 45.6 113 60.5 48.3 125 WEBBER SPRINGS 9250 15.2 7.7 197 36.3 32.4 112 WILLOW CREEK PASS 9540 9.9 6.8 146 19.4 17.7 110 ZIRKEL 9340 24.3 3.3 736 48.0 33.6 143 ----- ----- Basin Index (%) 160 119 SWEETWATER DEER PARK 9700 -M 8.6 * 24.3 26.4 92 LARSEN CREEK 9000 .0 2.4 0 17.9 -M * SOUTH PASS 9040 6.9 3.3 209 19.2 22.8 84 ----- ----- Basin Index (%) 121 88 LOWER N. PLATTE CASPER MTN. 7900 7.6 1.6 475 21.3 20.9 102 LAPRELE CREEK 8375 .2 .0 * 17.8 17.2 103 RENO HILL 8400 13.7 .2 6850* 28.5 21.8 131 WINDY PEAK 7900 .0 .0 * 17.1 15.3 112 ----- ----- Basin Index (%) 1194* 113 LARAMIE RIVER BROOKLYN LAKE 10240 25.3 12.8 198 38.0 27.6 138 CINNABAR PARK 9574 21.1 8.5 248 37.1 29.8 124 CROW CREEK 8330 .1 .0 * 17.8 15.6 114 DEADMAN HILL 10220 23.1 14.0 165 30.7 23.4 131 RAWAH 9020 1.0 .0 * 23.8 19.1 125 ROACH 9700 14.8 8.3 178 31.2 25.0 125 ----- ----- Basin Index (%) 196 127 S. PLATTE BLACK MOUNTAIN 8920 .2 -M * 19.6 -M * CROW CREEK 8330 .1 .0 * 17.8 15.6 114 DEADMAN HILL 10220 23.1 14.0 165 30.7 23.4 131 ----- ----- Basin Index (%) 166* 124 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 * 20.2 18.8 107 DIVIDE PEAK 8880 2.2 2.2 100 29.8 26.7 112 ELK RIVER 8700 .3 .0 * 27.3 24.8 110 LITTLE SNAKE RIVER 8915 -M 8.8 * -M 35.6 * OLD BATTLE 10000 37.2 30.7 121 43.8 42.5 103 SAGE CREEK BASIN 7850 .1 .0 * 14.6 17.6 83 SANDSTONE RS 8150 -M .0 * 21.1 22.8 93 WHISKEY PARK 8950 27.1 17.5 155 46.5 34.1 136 ----- ----- Basin Index (%) 133* 109 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.6 .2 2800* 17.2 17.2 100 BLIND BULL SUM 8650 37.7 17.6 214 26.1 23.7 110 EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.5 123 ELKHART PARK G.S. 9400 10.6 3.7 286 20.4 17.2 119 GROS VENTRE SUMMIT 8750 5.2 2.8 186 16.7 16.4 102 GUNSIGHT PASS 9820 14.9 8.0 186 22.3 18.0 124 KENDALL R.S. 7740 1.5 .0 * 25.0 17.0 147 LOOMIS PARK 8240 8.7 .1 8700* 27.7 20.9 133 NEW FORK LAKE 8340 -M .0 * 15.3 13.8 111 POCKET CREEK 9360 6.5 -M * 15.3 -M * SNIDER BASIN 8060 .0 .0 * 21.8 17.1 127 SPRING CREEK DIVIDE 9000 30.1 17.5 172 36.6 28.5 128 TRIPLE PEAK 8500 17.8 4.5 396 41.4 30.7 135 ----- ----- Basin Index (%) 243* 123 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 16.8 -M * BUCK PASTURE 9700 .0 -M * 21.5 -M * EF BLACKS FORK GS 9360 .0 -M * 14.5 -M * HAMS FORK 7840 .0 .0 * 16.9 14.7 115 HEWINTA 9519 .0 .0 * 18.6 18.0 103 HICKERSON PARK 9145 .1 .0 * 12.1 13.8 88 HOLE-IN-ROCK 9150 .0 .0 * 13.3 13.4 99 INDIAN CREEK 9425 22.6 15.6 145 30.9 27.4 113 KELLEY R.S. 8180 2.8 .3 933* 23.7 22.2 107 SPIRIT LK 10235 .2 -M * 19.1 -M * STEEL CREEK PARK 10200 16.0 12.8 125 21.1 21.4 99 ----- ----- Basin Index (%) 145* 104 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 15.5 -M * BUG LAKE 7950 5.4 .3 1800* 24.5 23.8 103 BURTS MILLER RANCH 8000 .1 -M * 8.8 -M * CHALK CREEK #1 8993 8.5 11.9 71 27.6 31.2 88 HAYDEN FORK 9212 .1 .0 * 25.3 26.2 97 KELLEY R.S. 8180 2.8 .3 933* 23.7 22.2 107 LILY LAKE 9156 .1 .0 * 18.9 21.7 87 MONTE CRISTO 8960 12.0 10.8 111 30.6 32.0 96 SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.2 110 ----- ----- Basin Index (%) 124* 98 ----------------------------------------------------------------------------- -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.