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 7 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 13.0 6.1 213 28.9 23.4 124 BLACK BEAR 8170 43.5 37.0 118 45.7 42.6 107 BLIND BULL SUM 8650 37.1 22.6 164 24.9 21.9 114 COTTONWOOD CREEK 7670 23.4 13.5 173 37.5 28.3 133 EAST RIM DIVIDE 7930 4.4 6.9 64 16.6 13.3 125 GRAND TARGHEE 9260 52.1 46.4 112 -M 35.7 * GRANITE CREEK 6770 14.9 6.7 222 26.3 21.8 121 GRASSY LAKE 7265 33.4 27.0 124 44.2 40.1 110 GROS VENTRE SUMMIT 8750 12.7 10.2 125 15.7 15.1 104 GUNSIGHT PASS 9820 19.0 11.7 162 20.8 16.5 126 LEWIS LAKE DIVIDE 7850 39.0 29.4 133 44.3 39.3 113 PHILLIPS BENCH 8200 35.3 23.6 150 38.6 31.4 123 SALT RIVER SUMMIT 7760 7.9 6.2 127 20.9 18.8 111 SNAKE RIVER STATION 6920 8.3 4.0 208 28.5 25.3 113 SPRING CREEK DIVIDE 9000 35.3 24.1 146 34.9 26.8 130 THUMB DIVIDE 7980 14.9 9.7 154 22.3 21.5 104 TOGWOTEE PASS 9580 32.7 25.0 131 36.3 28.1 129 TWO OCEAN PLATEAU 9240 39.3 29.8 132 38.0 30.8 123 WILLOW CREEK 8380 33.3 21.7 153 45.0 38.6 117 YOUNTS PEAK 8350 -M 15.6 * -M 18.3 * ----- ----- Basin Index (%) 138 118 MADISON-GALLATIN BLACK BEAR 8170 43.5 37.0 118 45.7 42.6 107 CANYON 7870 12.6 8.2 154 19.3 18.5 104 MADISON PLATEAU 7750 24.9 20.7 120 29.3 29.6 99 WEST YELLOWSTONE 6700 .0 .0 * 18.8 16.4 115 WHISKEY CREEK 6800 15.2 11.9 128 24.7 22.8 108 ----- ----- Basin Index (%) 124 106 YELLOWSTONE BEARTOOTH LAKE 9360 32.8 22.9 143 33.8 22.7 149 BURNT MTN 5880 .9 .0 * 23.9 16.6 144 CANYON 7870 12.6 8.2 154 19.3 18.5 104 COLE CREEK 7850 23.8 16.9 141 20.0 17.2 116 EVENING STAR 9200 41.1 25.1 164 45.3 31.3 145 FISHER CREEK 9100 47.8 33.4 143 45.0 36.1 125 NORTHEAST ENTRANCE 7350 6.8 1.0 680 18.5 14.3 129 PARKER PEAK 9400 37.4 21.6 173 34.1 20.7 165 SYLVAN LAKE 8420 23.5 18.4 128 33.7 25.9 130 THUMB DIVIDE 7980 14.9 9.7 154 22.3 21.5 104 TWO OCEAN PLATEAU 9240 39.3 29.8 132 38.0 30.8 123 WHITE MILL 8700 35.3 24.3 145 33.4 27.0 124 WOLVERINE 7650 7.6 .5 1520* 20.6 14.2 145 ----- ----- Basin Index (%) 153 131 WIND RIVER BURROUGHS CREEK 8750 -M 12.0 * -M 18.5 * CASTLE CREEK 8400 .7 -M * 13.7 -M * COLD SPRINGS 9630 2.2 1.6 138 14.1 13.1 108 DEER PARK 9700 15.6 14.7 106 21.8 24.2 90 HOBBS PARK 10100 13.8 15.9 87 15.8 17.4 91 KIRWIN 9550 19.0 10.8 176 20.0 14.5 138 LITTLE WARM 9370 10.2 7.1 144 18.5 15.9 116 OWL CREEK 8975 .0 .5 0* 8.8 8.4 105 SOUTH PASS 9040 11.8 13.1 90 17.0 21.0 81 ST. LAWRENCE ALT 8620 .4 1.5 27 10.7 12.1 88 TOGWOTEE PASS 9580 32.7 25.0 131 36.3 28.1 129 TOWNSEND CREEK 8700 .7 5.2 13 11.6 15.5 75 ----- ----- Basin Index (%) 112 103 BIGHORN BASIN BALD MTN. 9380 30.0 20.4 147 23.5 20.4 115 BEAR TRAP MEADOW 8200 3.1 .2 1550* 12.8 11.3 113 BONE SPRINGS DIV 9350 24.4 16.4 149 20.7 19.0 109 GRAVE SPRINGS 8550 10.4 8.5 122 14.5 13.6 107 KIRWIN 9550 19.0 10.8 176 20.0 14.5 138 MARQUETTE 8760 14.3 -M * 16.3 -M * MIDDLE POWDER 7760 15.5 11.2 138 16.7 14.8 113 OWL CREEK 8975 .0 .5 0* 8.8 8.4 105 POWDER RIVER PASS 9480 12.8 9.0 142 19.0 15.8 120 SHELL CREEK 9580 19.8 16.4 121 19.7 17.0 116 TIMBER CREEK 7950 1.0 1.9 53 12.1 10.6 114 ----- ----- Basin Index (%) 143 115 SHOSHONE RIVER BLACKWATER 9780 35.2 25.5 138 33.6 24.2 139 EVENING STAR 9200 41.1 25.1 164 45.3 31.3 145 MARQUETTE 8760 14.3 -M * 16.3 -M * SYLVAN ROAD 7120 1.1 2.9 38 24.9 19.0 131 YOUNTS PEAK 8350 -M 15.6 * -M 18.3 * ----- ----- Basin Index (%) 145 139 POWDER RIVER BEAR TRAP MEADOW 8200 3.1 .2 1550* 12.8 11.3 113 CLOUD PEAK RESERVOIR 9860 23.2 16.5 141 23.7 17.5 135 GRAVE SPRINGS 8550 10.4 8.5 122 14.5 13.6 107 HANSEN SAWMILL 8360 4.3 1.5 287 15.1 11.4 132 MIDDLE POWDER 7760 15.5 11.2 138 16.7 14.8 113 POWDER RIVER PASS 9480 12.8 9.0 142 19.0 15.8 120 SOLDIER PARK 8720 9.2 -M * 15.3 -M * ----- ----- Basin Index (%) 148 121 TONGUE RIVER BIG GOOSE 7990 10.8 10.1 107 18.2 15.1 121 BONE SPRINGS DIV 9350 24.4 16.4 149 20.7 19.0 109 BURGESS JUNCTION 7880 16.8 11.4 147 19.6 15.5 126 DOME LAKE 8880 15.6 11.2 139 18.7 17.2 109 LITTLE GOOSE 8870 13.0 -M * 21.3 -M * SUCKER CREEK 8880 17.3 12.1 143 23.6 18.3 129 TIE CREEK 6870 4.7 2.1 224 18.5 15.1 123 ----- ----- Basin Index (%) 142 119 BELLE FOURCHE COLE CANYON 5910 .7 .0 * 16.8 12.9 130 ----- ----- Basin Index (%) * 130 CHEYENNE RIVER BASIN BLIND PARK 6890 .0 .0 * 19.7 14.9 132 NORTH RAPID CREEK 6130 .0 .0 * 19.1 12.9 148 ----- ----- Basin Index (%) * 140 UPPER N. PLATTE ARAPAHO RIDGE 10960 28.2 22.3 126 30.7 26.9 114 BLACKHALL MTN 9820 36.1 -M * -M -M * COLUMBINE 9160 26.2 15.1 174 -M 29.2 * DIVIDE PEAK 8880 9.2 16.3 56 25.4 25.0 102 JOE WRIGHT 10120 28.3 22.9 124 37.5 30.8 122 LAPRELE CREEK 8375 2.1 4.6 46 14.7 15.6 94 MED BOW 10500 -M -M * 44.8 -M * NORTH FRENCH CREEK 10130 38.4 32.8 117 39.5 31.6 125 NEVER SUMMER 10280 27.7 22.0 126 23.7 -M * OLD BATTLE 10000 34.9 35.8 97 40.2 40.2 100 RAWAH 9020 6.3 3.8 166 20.5 17.8 115 SAGE CREEK BASIN 7850 .0 .2 0* 13.8 16.6 83 SAND LAKE 10050 36.2 31.8 114 37.1 29.9 124 SOUTH BRUSH CREEK 8440 3.3 6.7 49 18.4 18.6 99 TOWER 10500 53.5 51.3 104 56.0 45.9 122 WEBBER SPRINGS 9250 17.8 20.5 87 31.2 30.6 102 WILLOW CREEK PASS 9540 15.1 14.3 106 17.3 16.2 107 ZIRKEL 9340 32.2 20.2 159 43.5 31.8 137 ----- ----- Basin Index (%) 112 113 SWEETWATER DEER PARK 9700 15.6 14.7 106 21.8 24.2 90 LARSEN CREEK 9000 3.0 7.4 41 16.6 -M * SOUTH PASS 9040 11.8 13.1 90 17.0 21.0 81 ----- ----- Basin Index (%) 86 86 LOWER N. PLATTE CASPER MTN. 7900 13.3 11.9 112 19.0 18.9 101 LAPRELE CREEK 8375 2.1 4.6 46 14.7 15.6 94 RENO HILL 8400 16.3 11.8 138 24.9 19.7 126 WINDY PEAK 7900 1.8 2.0 90 14.5 13.5 107 ----- ----- Basin Index (%) 111 108 LARAMIE RIVER BROOKLYN LAKE 10240 28.7 22.2 129 33.9 25.5 133 CINNABAR PARK 9574 22.3 18.1 123 32.3 27.8 116 CROW CREEK 8330 .1 .0 * 14.3 14.1 101 DEADMAN HILL 10220 26.8 18.9 142 27.1 21.3 127 RAWAH 9020 6.3 3.8 166 20.5 17.8 115 ROACH 9700 16.6 16.6 100 26.9 23.0 117 ----- ----- Basin Index (%) 127 120 S. PLATTE BLACK MOUNTAIN 8920 6.5 -M * -M -M * CROW CREEK 8330 .1 .0 * 14.3 14.1 101 DEADMAN HILL 10220 26.8 18.9 142 27.1 21.3 127 ----- ----- Basin Index (%) 142* 117 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 * 19.1 17.6 109 DIVIDE PEAK 8880 9.2 16.3 56 25.4 25.0 102 ELK RIVER 8700 9.7 10.1 96 24.9 23.4 106 LITTLE SNAKE RIVER 8915 19.9 21.0 95 37.3 33.7 111 OLD BATTLE 10000 34.9 35.8 97 40.2 40.2 100 SAGE CREEK BASIN 7850 .0 .2 0* 13.8 16.6 83 SANDSTONE RS 8150 -M 3.2 * 19.6 21.3 92 WHISKEY PARK 8950 37.3 27.1 138 43.0 32.3 133 ----- ----- Basin Index (%) 100 106 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.3 8.7 130 15.7 15.8 99 BLIND BULL SUM 8650 37.1 22.6 164 24.9 21.9 114 EAST RIM DIVIDE 7930 4.4 6.9 64 16.6 13.3 125 ELKHART PARK G.S. 9400 15.5 10.0 155 18.3 15.6 117 GROS VENTRE SUMMIT 8750 12.7 10.2 125 15.7 15.1 104 GUNSIGHT PASS 9820 19.0 11.7 162 20.8 16.5 126 KENDALL R.S. 7740 12.3 .7 1757* 23.9 16.0 149 LOOMIS PARK 8240 16.2 8.4 193 26.4 19.5 135 NEW FORK LAKE 8340 7.8 4.0 195 14.0 12.6 111 POCKET CREEK 9360 11.0 -M * 13.5 -M * SNIDER BASIN 8060 6.8 7.9 86 20.6 16.0 129 SPRING CREEK DIVIDE 9000 35.3 24.1 146 34.9 26.8 130 TRIPLE PEAK 8500 27.5 15.4 179 39.4 28.7 137 ----- ----- Basin Index (%) 158 125 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 15.2 -M * BUCK PASTURE 9700 7.7 -M * 19.6 -M * EF BLACKS FORK GS 9360 .7 -M * 11.6 -M * HAMS FORK 7840 2.6 .5 520* 15.3 13.5 113 HEWINTA 9519 .8 3.4 24 16.4 16.8 98 HICKERSON PARK 9145 .1 1.8 6 9.6 12.5 77 HOLE-IN-ROCK 9150 .0 1.0 0 11.0 12.0 92 INDIAN CREEK 9425 28.5 21.3 134 28.7 25.6 112 KELLEY R.S. 8180 11.4 9.2 124 22.0 20.7 106 SPIRIT LK 10235 4.1 -M * 15.7 -M * STEEL CREEK PARK 10200 19.2 17.6 109 18.6 19.8 94 ----- ----- Basin Index (%) 114 101 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 14.2 -M * BUG LAKE 7950 14.5 12.8 113 22.8 22.3 102 BURTS MILLER RANCH 8000 .1 -M * 7.9 -M * CHALK CREEK #1 8993 16.5 22.5 73 26.0 29.3 89 HAYDEN FORK 9212 3.7 7.1 52 24.1 24.5 98 KELLEY R.S. 8180 11.4 9.2 124 22.0 20.7 106 LILY LAKE 9156 5.6 7.8 72 17.4 20.2 86 MONTE CRISTO 8960 19.4 23.3 83 28.3 30.1 94 SALT RIVER SUMMIT 7760 7.9 6.2 127 20.9 18.8 111 ----- ----- Basin Index (%) 89 97 ----------------------------------------------------------------------------- -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.