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 WEDNESDAY: MAY 14 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 12.1 2.0 605 30.3 24.0 126 BLACK BEAR 8170 45.9 36.3 126 48.3 43.7 111 BLIND BULL SUM 8650 37.0 22.1 167 25.9 22.7 114 COTTONWOOD CREEK 7670 24.1 10.9 221 39.4 29.4 134 EAST RIM DIVIDE 7930 3.0 4.5 67 17.4 13.8 126 GRAND TARGHEE 9260 53.5 45.5 118 44.6 36.6 122 GRANITE CREEK 6770 14.6 2.4 608 27.5 22.5 122 GRASSY LAKE 7265 34.2 23.1 148 46.5 41.1 113 GROS VENTRE SUMMIT 8750 13.1 9.0 146 17.1 15.7 109 GUNSIGHT PASS 9820 19.8 12.4 160 21.9 17.4 126 LEWIS LAKE DIVIDE 7850 41.0 27.1 151 46.6 40.2 116 PHILLIPS BENCH 8200 35.1 22.3 157 39.5 32.3 122 SALT RIVER SUMMIT 7760 8.4 2.1 400 22.3 19.4 115 SNAKE RIVER STATION 6920 7.8 .0 * 30.4 25.9 117 SPRING CREEK DIVIDE 9000 36.7 22.8 161 36.3 27.6 132 THUMB DIVIDE 7980 15.5 5.9 263 23.4 22.2 105 TOGWOTEE PASS 9580 35.3 24.8 142 37.4 29.1 129 TWO OCEAN PLATEAU 9240 40.6 29.3 139 39.6 32.1 123 WILLOW CREEK 8380 34.7 19.7 176 47.2 40.0 118 YOUNTS PEAK 8350 -M 14.2 * -M 19.0 * ----- ----- Basin Index (%) 159 120 MADISON-GALLATIN BLACK BEAR 8170 45.9 36.3 126 48.3 43.7 111 CANYON 7870 12.6 5.8 217 20.3 19.3 105 MADISON PLATEAU 7750 25.9 17.8 146 30.7 30.5 101 WEST YELLOWSTONE 6700 .0 .0 * 19.5 17.0 115 WHISKEY CREEK 6800 14.9 9.1 164 26.1 23.6 111 ----- ----- Basin Index (%) 144 108 YELLOWSTONE BEARTOOTH LAKE 9360 34.8 22.7 153 34.7 23.6 147 BURNT MTN 5880 .0 .0 * 25.5 18.7 136 CANYON 7870 12.6 5.8 217 20.3 19.3 105 COLE CREEK 7850 26.7 17.2 155 22.7 18.9 120 EVENING STAR 9200 41.9 25.4 165 46.5 32.4 144 FISHER CREEK 9100 48.8 34.3 142 46.8 37.3 125 NORTHEAST ENTRANCE 7350 5.5 .2 2750* 19.3 15.0 129 PARKER PEAK 9400 38.3 21.9 175 35.3 21.7 163 SYLVAN LAKE 8420 23.9 17.3 138 35.2 26.8 131 THUMB DIVIDE 7980 15.5 5.9 263 23.4 22.2 105 TWO OCEAN PLATEAU 9240 40.6 29.3 139 39.6 32.1 123 WHITE MILL 8700 36.8 24.6 150 34.8 28.2 123 WOLVERINE 7650 7.2 .0 * 21.0 15.0 140 ----- ----- Basin Index (%) 163 130 WIND RIVER BURROUGHS CREEK 8750 -M 11.4 * -M 19.3 * CASTLE CREEK 8400 .0 -M * 14.6 -M * COLD SPRINGS 9630 2.1 .5 420* 15.7 14.0 112 DEER PARK 9700 17.4 13.9 125 23.8 25.5 93 HOBBS PARK 10100 15.9 15.3 104 18.2 18.6 98 KIRWIN 9550 20.1 10.5 191 22.1 15.3 144 LITTLE WARM 9370 11.3 6.4 177 20.1 16.8 120 OWL CREEK 8975 .0 .0 * 9.3 9.1 102 SOUTH PASS 9040 13.3 10.5 127 19.1 22.0 87 ST. LAWRENCE ALT 8620 1.0 .2 500* 12.4 13.0 95 TOGWOTEE PASS 9580 35.3 24.8 142 37.4 29.1 129 TOWNSEND CREEK 8700 2.5 1.8 139 13.8 16.5 84 ----- ----- Basin Index (%) 142 107 BIGHORN BASIN BALD MTN. 9380 31.5 20.8 151 25.2 21.6 117 BEAR TRAP MEADOW 8200 2.7 .0 * 13.9 12.1 115 BONE SPRINGS DIV 9350 25.9 16.2 160 21.9 20.2 108 GRAVE SPRINGS 8550 10.3 6.8 151 15.1 14.7 103 KIRWIN 9550 20.1 10.5 191 22.1 15.3 144 MARQUETTE 8760 15.8 -M * 17.8 -M * MIDDLE POWDER 7760 16.1 9.4 171 17.4 15.8 110 OWL CREEK 8975 .0 .0 * 9.3 9.1 102 POWDER RIVER PASS 9480 13.0 8.5 153 19.9 16.7 119 SHELL CREEK 9580 21.6 16.7 129 21.1 18.1 117 TIMBER CREEK 7950 1.7 .2 850* 13.4 11.7 115 ----- ----- Basin Index (%) 160 115 SHOSHONE RIVER BLACKWATER 9780 36.2 24.6 147 34.6 25.2 137 EVENING STAR 9200 41.9 25.4 165 46.5 32.4 144 MARQUETTE 8760 15.8 -M * 17.8 -M * SYLVAN ROAD 7120 .0 .1 0* 25.7 19.7 130 YOUNTS PEAK 8350 -M 14.2 * -M 19.0 * ----- ----- Basin Index (%) 156* 138 POWDER RIVER BEAR TRAP MEADOW 8200 2.7 .0 * 13.9 12.1 115 CLOUD PEAK RESERVOIR 9860 24.5 16.4 149 25.1 18.8 134 GRAVE SPRINGS 8550 10.3 6.8 151 15.1 14.7 103 HANSEN SAWMILL 8360 4.7 .0 * 15.9 12.4 128 MIDDLE POWDER 7760 16.1 9.4 171 17.4 15.8 110 POWDER RIVER PASS 9480 13.0 8.5 153 19.9 16.7 119 SOLDIER PARK 8720 9.5 -M * 16.1 -M * ----- ----- Basin Index (%) 173 119 TONGUE RIVER BIG GOOSE 7990 11.7 9.2 127 19.6 16.6 118 BONE SPRINGS DIV 9350 25.9 16.2 160 21.9 20.2 108 BURGESS JUNCTION 7880 17.7 10.9 162 20.8 16.5 126 DOME LAKE 8880 16.9 10.3 164 20.4 18.5 110 LITTLE GOOSE 8870 14.4 -M * 22.5 -M * SUCKER CREEK 8880 18.4 11.8 156 25.0 19.6 128 TIE CREEK 6870 5.0 .5 1000* 19.4 16.7 116 ----- ----- Basin Index (%) 162 118 BELLE FOURCHE COLE CANYON 5910 .0 .0 * 17.2 14.3 120 ----- ----- Basin Index (%) * 120 CHEYENNE RIVER BASIN BLIND PARK 6890 .0 .0 * 20.6 16.1 128 NORTH RAPID CREEK 6130 .0 .0 * 19.6 14.1 139 ----- ----- Basin Index (%) * 133 UPPER N. PLATTE ARAPAHO RIDGE 10960 30.8 21.9 141 34.6 28.1 123 BLACKHALL MTN 9820 39.6 -M * -M -M * COLUMBINE 9160 27.3 9.4 290 -M 30.1 * DIVIDE PEAK 8880 13.2 11.3 117 29.5 25.9 114 JOE WRIGHT 10120 30.7 23.0 133 40.4 32.0 126 LAPRELE CREEK 8375 2.2 .0 * 16.6 16.4 101 MED BOW 10500 -M -M * 48.2 -M * NORTH FRENCH CREEK 10130 40.4 32.2 125 42.2 33.0 128 NEVER SUMMER 10280 28.5 22.2 128 25.3 -M * OLD BATTLE 10000 39.8 35.8 111 43.5 41.5 105 RAWAH 9020 8.0 1.5 533 22.6 18.7 121 SAGE CREEK BASIN 7850 2.8 .0 * 14.6 17.1 85 SAND LAKE 10050 40.2 30.9 130 41.7 31.1 134 SOUTH BRUSH CREEK 8440 2.2 2.1 105 19.4 19.5 99 TOWER 10500 55.9 50.3 111 59.5 47.1 126 WEBBER SPRINGS 9250 21.0 17.1 123 35.6 31.6 113 WILLOW CREEK PASS 9540 15.6 11.8 132 18.8 16.9 111 ZIRKEL 9340 34.1 17.6 194 -M 33.1 * ----- ----- Basin Index (%) 137 117 SWEETWATER DEER PARK 9700 17.4 13.9 125 23.8 25.5 93 LARSEN CREEK 9000 3.2 5.3 60 17.8 -M * SOUTH PASS 9040 13.3 10.5 127 19.1 22.0 87 ----- ----- Basin Index (%) 114 90 LOWER N. PLATTE CASPER MTN. 7900 14.8 9.8 151 20.5 19.9 103 LAPRELE CREEK 8375 2.2 .0 * 16.6 16.4 101 RENO HILL 8400 19.0 8.4 226 27.5 20.7 133 WINDY PEAK 7900 2.6 .0 * 16.7 14.2 118 ----- ----- Basin Index (%) 212 114 LARAMIE RIVER BROOKLYN LAKE 10240 31.1 20.2 154 37.8 26.5 143 CINNABAR PARK 9574 23.5 15.8 149 36.7 29.2 126 CROW CREEK 8330 1.3 .0 * 17.4 14.8 118 DEADMAN HILL 10220 28.8 18.4 157 30.2 22.3 135 RAWAH 9020 8.0 1.5 533 22.6 18.7 121 ROACH 9700 19.9 14.2 140 30.9 23.9 129 ----- ----- Basin Index (%) 161 130 S. PLATTE BLACK MOUNTAIN 8920 7.4 -M * -M -M * CROW CREEK 8330 1.3 .0 * 17.4 14.8 118 DEADMAN HILL 10220 28.8 18.4 157 30.2 22.3 135 ----- ----- Basin Index (%) 164* 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 * 19.9 18.3 109 DIVIDE PEAK 8880 13.2 11.3 117 29.5 25.9 114 ELK RIVER 8700 10.4 4.2 248 26.5 24.1 110 LITTLE SNAKE RIVER 8915 -M 18.7 * -M 34.9 * OLD BATTLE 10000 39.8 35.8 111 43.5 41.5 105 SAGE CREEK BASIN 7850 2.8 .0 * 14.6 17.1 85 SANDSTONE RS 8150 -M .0 * 20.3 22.2 91 WHISKEY PARK 8950 36.1 25.1 144 45.6 33.4 137 ----- ----- Basin Index (%) 134 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 12.4 8.1 153 17.2 16.5 104 BLIND BULL SUM 8650 37.0 22.1 167 25.9 22.7 114 EAST RIM DIVIDE 7930 3.0 4.5 67 17.4 13.8 126 ELKHART PARK G.S. 9400 17.2 8.9 193 20.3 16.3 125 GROS VENTRE SUMMIT 8750 13.1 9.0 146 17.1 15.7 109 GUNSIGHT PASS 9820 19.8 12.4 160 21.9 17.4 126 KENDALL R.S. 7740 11.2 .0 * 24.8 16.4 151 LOOMIS PARK 8240 16.9 6.2 273 27.5 20.2 136 NEW FORK LAKE 8340 8.0 1.4 571 14.8 13.2 112 POCKET CREEK 9360 12.7 -M * 15.0 -M * SNIDER BASIN 8060 3.4 5.6 61 21.5 16.5 130 SPRING CREEK DIVIDE 9000 36.7 22.8 161 36.3 27.6 132 TRIPLE PEAK 8500 27.8 13.3 209 41.1 29.7 138 ----- ----- Basin Index (%) 181 126 LOWER GREEN RIVER BLACKS FORK JCT 8870 .2 -M * 16.8 -M * BUCK PASTURE 9700 9.2 -M * 21.3 -M * EF BLACKS FORK GS 9360 1.5 -M * 13.3 -M * HAMS FORK 7840 1.2 .0 * 16.7 14.1 118 HEWINTA 9519 1.9 .2 950* 18.2 17.4 105 HICKERSON PARK 9145 2.6 .0 * 12.0 13.1 92 HOLE-IN-ROCK 9150 1.3 .0 * 13.3 12.7 105 INDIAN CREEK 9425 30.8 21.3 145 30.6 26.6 115 KELLEY R.S. 8180 12.3 7.0 176 23.5 21.4 110 SPIRIT LK 10235 6.0 -M * 18.7 -M * STEEL CREEK PARK 10200 21.1 16.9 125 21.1 20.6 102 ----- ----- Basin Index (%) 157* 108 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 15.3 -M * BUG LAKE 7950 16.0 10.9 147 24.4 23.0 106 BURTS MILLER RANCH 8000 .1 -M * 8.7 -M * CHALK CREEK #1 8993 17.7 19.9 89 27.6 30.4 91 HAYDEN FORK 9212 3.4 3.8 89 25.2 25.4 99 KELLEY R.S. 8180 12.3 7.0 176 23.5 21.4 110 LILY LAKE 9156 6.3 2.1 300 18.7 21.0 89 MONTE CRISTO 8960 21.0 19.6 107 29.9 31.2 96 SALT RIVER SUMMIT 7760 8.4 2.1 400 22.3 19.4 115 ----- ----- Basin Index (%) 130 100 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.