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: APRIL 3 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 24.8 15.0 165 26.1 20.4 128 BLACK BEAR 8170 42.4 36.8 115 39.8 37.0 108 BLIND BULL SUM 8650 36.4 22.8 160 23.4 19.0 123 COTTONWOOD CREEK 7670 31.2 21.3 146 34.2 24.0 142 EAST RIM DIVIDE 7930 17.9 10.1 177 15.5 11.4 136 GRAND TARGHEE 9260 50.2 37.2 135 -M 30.0 * GRANITE CREEK 6770 24.2 14.8 164 24.0 19.2 125 GRASSY LAKE 7265 41.9 31.6 133 38.4 35.0 110 GROS VENTRE SUMMIT 8750 15.0 13.0 115 14.8 12.6 117 GUNSIGHT PASS 9820 20.4 13.5 151 18.9 13.4 141 LEWIS LAKE DIVIDE 7850 39.5 29.6 133 -M 34.5 * PHILLIPS BENCH 8200 35.0 24.6 142 33.9 27.4 124 SALT RIVER SUMMIT 7760 18.5 13.0 142 19.3 16.2 119 SNAKE RIVER STATION 6920 -M 15.2 * -M 21.8 * SPRING CREEK DIVIDE 9000 35.5 22.5 158 31.8 23.2 137 THUMB DIVIDE 7980 20.9 14.8 141 18.1 18.0 101 TOGWOTEE PASS 9580 32.3 21.7 149 32.5 23.6 138 TWO OCEAN PLATEAU 9240 40.2 25.7 156 -M 26.4 * WILLOW CREEK 8380 40.9 28.1 146 40.8 32.7 125 YOUNTS PEAK 8350 -M 14.2 * -M 15.3 * ----- ----- Basin Index (%) 143 124 MADISON-GALLATIN BLACK BEAR 8170 42.4 36.8 115 39.8 37.0 108 CANYON 7870 15.5 12.4 125 16.7 15.7 106 MADISON PLATEAU 7750 25.3 21.4 118 25.0 25.5 98 WEST YELLOWSTONE 6700 14.4 10.2 141 16.2 13.8 117 WHISKEY CREEK 6800 17.9 15.0 119 20.9 19.5 107 ----- ----- Basin Index (%) 121 106 YELLOWSTONE BEARTOOTH LAKE 9360 31.5 21.2 149 29.1 19.1 152 BURNT MTN 5880 11.9 4.5 264 19.6 12.4 158 CANYON 7870 15.5 12.4 125 16.7 15.7 106 COLE CREEK 7850 22.8 13.9 164 16.1 12.2 132 EVENING STAR 9200 38.6 23.8 162 39.8 26.4 151 FISHER CREEK 9100 43.3 30.6 142 37.0 30.7 121 NORTHEAST ENTRANCE 7350 15.6 9.4 166 15.7 11.8 133 PARKER PEAK 9400 31.7 18.9 168 28.1 17.0 165 SYLVAN LAKE 8420 25.0 19.2 130 28.4 21.6 131 THUMB DIVIDE 7980 20.9 14.8 141 18.1 18.0 101 TWO OCEAN PLATEAU 9240 40.2 25.7 156 -M 26.4 * WHITE MILL 8700 33.5 21.8 154 28.7 22.9 125 WOLVERINE 7650 16.4 9.3 176 16.8 11.8 142 ----- ----- Basin Index (%) 154 134 WIND RIVER BURROUGHS CREEK 8750 -M 13.1 * -M 15.4 * CASTLE CREEK 8400 10.7 -M * 12.6 -M * COLD SPRINGS 9630 9.9 7.1 139 13.4 9.7 138 DEER PARK 9700 17.5 14.9 117 19.5 19.1 102 HOBBS PARK 10100 16.0 13.6 118 13.9 12.8 109 KIRWIN 9550 19.2 9.5 202 17.7 11.2 158 LITTLE WARM 9370 14.7 10.2 144 16.9 12.4 136 OWL CREEK 8975 8.2 5.7 144 8.1 5.8 140 SOUTH PASS 9040 16.7 15.0 111 15.5 16.9 92 ST. LAWRENCE ALT 8620 5.4 6.8 79 9.2 8.7 106 TOGWOTEE PASS 9580 32.3 21.7 149 32.5 23.6 138 TOWNSEND CREEK 8700 8.5 9.2 92 9.5 11.5 83 ----- ----- Basin Index (%) 131 119 BIGHORN BASIN BALD MTN. 9380 25.7 18.9 136 20.1 16.5 122 BEAR TRAP MEADOW 8200 11.3 5.1 222 11.3 8.2 138 BONE SPRINGS DIV 9350 21.8 16.3 134 17.5 15.0 117 GRAVE SPRINGS 8550 13.4 9.0 149 13.1 10.2 128 KIRWIN 9550 19.2 9.5 202 17.7 11.2 158 MARQUETTE 8760 15.4 -M * 13.5 -M * MIDDLE POWDER 7760 18.1 11.6 156 14.3 11.3 127 OWL CREEK 8975 8.2 5.7 144 8.1 5.8 140 POWDER RIVER PASS 9480 15.8 10.0 158 16.9 12.1 140 SHELL CREEK 9580 19.6 14.7 133 16.8 13.3 126 TIMBER CREEK 7950 7.2 4.8 150 9.0 7.1 127 ----- ----- Basin Index (%) 152 131 SHOSHONE RIVER BLACKWATER 9780 32.4 22.3 145 29.1 19.9 146 EVENING STAR 9200 38.6 23.8 162 39.8 26.4 151 MARQUETTE 8760 15.4 -M * 13.5 -M * SYLVAN ROAD 7120 16.4 11.0 149 21.4 16.3 131 YOUNTS PEAK 8350 -M 14.2 * -M 15.3 * ----- ----- Basin Index (%) 153 144 POWDER RIVER BEAR TRAP MEADOW 8200 11.3 5.1 222 11.3 8.2 138 CLOUD PEAK RESERVOIR 9860 20.9 14.3 146 18.4 12.8 144 GRAVE SPRINGS 8550 13.4 9.0 149 13.1 10.2 128 HANSEN SAWMILL 8360 10.4 6.3 165 12.5 8.2 152 MIDDLE POWDER 7760 18.1 11.6 156 14.3 11.3 127 POWDER RIVER PASS 9480 15.8 10.0 158 16.9 12.1 140 SOLDIER PARK 8720 13.5 -M * 11.8 -M * ----- ----- Basin Index (%) 160 138 TONGUE RIVER BIG GOOSE 7990 12.8 9.2 139 14.9 10.9 137 BONE SPRINGS DIV 9350 21.8 16.3 134 17.5 15.0 117 BURGESS JUNCTION 7880 15.7 11.5 137 16.1 11.9 135 DOME LAKE 8880 16.1 11.6 139 14.8 13.0 114 LITTLE GOOSE 8870 14.5 -M * 17.2 -M * SUCKER CREEK 8880 18.2 11.6 157 19.4 13.9 140 TIE CREEK 6870 9.6 5.5 175 15.0 11.1 135 ----- ----- Basin Index (%) 143 129 BELLE FOURCHE COLE CANYON 5910 8.1 5.7 142 14.3 9.0 159 ----- ----- Basin Index (%) 142 159 CHEYENNE RIVER BASIN BLIND PARK 6890 9.4 7.2 131 16.7 11.4 146 NORTH RAPID CREEK 6130 9.7 6.7 145 15.4 9.4 164 ----- ----- Basin Index (%) 137 154 UPPER N. PLATTE ARAPAHO RIDGE 10960 28.0 20.2 139 27.0 21.6 125 BLACKHALL MTN 9820 38.8 -M * -M -M * COLUMBINE 9160 36.8 23.2 159 -M 24.8 * DIVIDE PEAK 8880 21.5 19.6 110 24.0 20.8 115 JOE WRIGHT 10120 23.0 20.5 112 31.5 25.0 126 LAPRELE CREEK 8375 10.3 9.4 110 11.6 12.1 96 MED BOW 10500 7.3 -M * 35.6 -M * NORTH FRENCH CREEK 10130 37.4 28.5 131 -M 26.0 * NEVER SUMMER 10280 25.1 19.9 126 19.2 -M * OLD BATTLE 10000 35.3 30.3 117 36.1 34.1 106 RAWAH 9020 14.9 10.4 143 17.5 13.8 127 SAGE CREEK BASIN 7850 14.1 12.6 112 13.5 14.1 96 SAND LAKE 10050 35.1 28.1 125 32.4 24.0 135 SOUTH BRUSH CREEK 8440 13.2 12.2 108 15.6 14.8 105 TOWER 10500 53.0 44.8 118 -M 38.6 * WEBBER SPRINGS 9250 27.6 23.0 120 29.3 26.0 113 WILLOW CREEK PASS 9540 15.0 11.9 126 14.6 13.0 112 ZIRKEL 9340 42.6 26.3 162 -M 27.6 * ----- ----- Basin Index (%) 127 115 SWEETWATER DEER PARK 9700 17.5 14.9 117 19.5 19.1 102 LARSEN CREEK 9000 14.1 12.0 118 15.9 -M * SOUTH PASS 9040 16.7 15.0 111 15.5 16.9 92 ----- ----- Basin Index (%) 115 97 LOWER N. PLATTE CASPER MTN. 7900 19.4 13.8 141 16.5 14.3 115 LAPRELE CREEK 8375 10.3 9.4 110 11.6 12.1 96 RENO HILL 8400 19.4 13.6 143 21.1 14.8 143 WINDY PEAK 7900 9.5 7.8 122 12.1 10.2 119 ----- ----- Basin Index (%) 131 119 LARAMIE RIVER BROOKLYN LAKE 10240 32.1 20.7 155 -M 20.4 * CINNABAR PARK 9574 25.2 20.4 124 30.1 23.4 129 CROW CREEK 8330 7.0 7.0 100 11.5 10.4 111 DEADMAN HILL 10220 25.2 15.8 159 23.5 16.7 141 RAWAH 9020 14.9 10.4 143 17.5 13.8 127 ROACH 9700 21.7 16.0 136 24.5 18.6 132 ----- ----- Basin Index (%) 140 129 S. PLATTE BLACK MOUNTAIN 8920 12.8 -M * -M -M * CROW CREEK 8330 7.0 7.0 100 11.5 10.4 111 DEADMAN HILL 10220 25.2 15.8 159 23.5 16.7 141 ----- ----- Basin Index (%) 141 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.7 10.4 122 18.4 14.6 126 DIVIDE PEAK 8880 21.5 19.6 110 24.0 20.8 115 ELK RIVER 8700 22.9 18.9 121 23.1 19.5 118 LITTLE SNAKE RIVER 8915 33.6 23.8 141 36.0 28.9 125 OLD BATTLE 10000 35.3 30.3 117 36.1 34.1 106 SAGE CREEK BASIN 7850 14.1 12.6 112 13.5 14.1 96 SANDSTONE RS 8150 13.7 13.0 105 18.9 17.9 106 WHISKEY PARK 8950 43.1 26.5 163 41.1 27.2 151 ----- ----- Basin Index (%) 127 119 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.9 12.4 128 15.0 12.8 117 BLIND BULL SUM 8650 36.4 22.8 160 23.4 19.0 123 EAST RIM DIVIDE 7930 17.9 10.1 177 15.5 11.4 136 ELKHART PARK G.S. 9400 17.7 12.2 145 16.6 12.9 129 GROS VENTRE SUMMIT 8750 15.0 13.0 115 14.8 12.6 117 GUNSIGHT PASS 9820 20.4 13.5 151 18.9 13.4 141 KENDALL R.S. 7740 22.7 11.5 197 23.0 13.8 167 LOOMIS PARK 8240 25.4 14.1 180 24.6 16.8 146 NEW FORK LAKE 8340 16.6 10.3 161 13.6 10.5 130 POCKET CREEK 9360 12.8 -M * 12.6 -M * SNIDER BASIN 8060 20.5 12.3 167 19.2 13.9 138 SPRING CREEK DIVIDE 9000 35.5 22.5 158 31.8 23.2 137 TRIPLE PEAK 8500 35.3 21.9 161 36.6 24.7 148 ----- ----- Basin Index (%) 158 137 LOWER GREEN RIVER BLACKS FORK JCT 8870 8.8 -M * 13.5 -M * BUCK PASTURE 9700 15.5 -M * 16.9 -M * EF BLACKS FORK GS 9360 10.8 -M * 10.2 -M * HAMS FORK 7840 17.0 10.9 156 13.9 11.1 125 HEWINTA 9519 12.1 10.9 111 14.3 13.6 105 HICKERSON PARK 9145 7.4 7.7 96 8.7 9.9 88 HOLE-IN-ROCK 9150 6.7 7.0 96 9.3 9.4 99 INDIAN CREEK 9425 33.2 24.2 137 26.8 22.0 122 KELLEY R.S. 8180 19.1 15.0 127 21.1 17.6 120 SPIRIT LK 10235 10.2 -M * 13.6 -M * STEEL CREEK PARK 10200 19.8 15.5 128 16.3 16.0 102 ----- ----- Basin Index (%) 126 111 UPPER BEAR RIVER BEAR RIVER RS 8777 10.7 -M * 12.5 -M * BUG LAKE 7950 24.0 18.2 132 20.9 18.9 111 BURTS MILLER RANCH 8000 7.4 -M * 7.0 -M * CHALK CREEK #1 8993 23.3 23.8 98 22.8 24.5 93 HAYDEN FORK 9212 17.8 15.3 116 20.9 20.5 102 KELLEY R.S. 8180 19.1 15.0 127 21.1 17.6 120 LILY LAKE 9156 14.1 12.3 115 15.3 16.6 92 MONTE CRISTO 8960 28.5 26.9 106 25.8 25.3 102 SALT RIVER SUMMIT 7760 18.5 13.0 142 19.3 16.2 119 ----- ----- Basin Index (%) 117 105 ----------------------------------------------------------------------------- -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.