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: APRIL 9 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 24.9 15.1 165 26.3 20.8 126 BLACK BEAR 8170 42.3 36.9 115 40.5 38.0 107 BLIND BULL SUM 8650 36.8 23.4 157 23.6 19.4 122 COTTONWOOD CREEK 7670 31.5 20.9 151 34.9 24.5 142 EAST RIM DIVIDE 7930 17.7 10.2 174 15.6 11.7 133 GRAND TARGHEE 9260 51.2 39.0 131 -M 30.8 * GRANITE CREEK 6770 24.3 14.1 172 24.3 19.6 124 GRASSY LAKE 7265 43.5 31.4 139 -M 35.8 * GROS VENTRE SUMMIT 8750 14.6 12.8 114 14.9 12.9 116 GUNSIGHT PASS 9820 20.7 13.9 149 19.2 13.9 138 LEWIS LAKE DIVIDE 7850 40.7 30.1 135 -M 35.2 * PHILLIPS BENCH 8200 35.6 25.6 139 34.7 28.0 124 SALT RIVER SUMMIT 7760 18.6 12.6 148 19.4 16.6 117 SNAKE RIVER STATION 6920 -M 14.6 * -M 22.4 * SPRING CREEK DIVIDE 9000 36.4 22.6 161 33.3 23.7 141 THUMB DIVIDE 7980 21.3 14.7 145 18.9 18.6 102 TOGWOTEE PASS 9580 32.7 22.3 147 33.2 24.2 137 TWO OCEAN PLATEAU 9240 40.6 26.3 154 -M 27.1 * WILLOW CREEK 8380 41.7 28.3 147 41.9 33.5 125 YOUNTS PEAK 8350 -M 14.5 * -M 15.7 * ----- ----- Basin Index (%) 144 125 MADISON-GALLATIN BLACK BEAR 8170 42.3 36.9 115 40.5 38.0 107 CANYON 7870 15.5 12.4 125 17.0 16.1 106 MADISON PLATEAU 7750 25.6 21.7 118 25.3 26.2 97 WEST YELLOWSTONE 6700 13.7 9.1 151 16.3 14.1 116 WHISKEY CREEK 6800 17.7 14.8 120 21.1 20.0 106 ----- ----- Basin Index (%) 121 105 YELLOWSTONE BEARTOOTH LAKE 9360 32.0 21.5 149 30.1 19.6 154 BURNT MTN 5880 11.1 4.0 278 19.7 13.1 150 CANYON 7870 15.5 12.4 125 17.0 16.1 106 COLE CREEK 7850 22.8 14.9 153 16.3 13.1 124 EVENING STAR 9200 39.7 23.9 166 40.8 27.2 150 FISHER CREEK 9100 44.2 31.3 141 40.2 31.4 128 NORTHEAST ENTRANCE 7350 15.4 8.8 175 16.0 12.2 131 PARKER PEAK 9400 32.6 19.7 165 29.4 17.6 167 SYLVAN LAKE 8420 25.2 19.5 129 29.0 22.2 131 THUMB DIVIDE 7980 21.3 14.7 145 18.9 18.6 102 TWO OCEAN PLATEAU 9240 40.6 26.3 154 -M 27.1 * WHITE MILL 8700 34.2 22.5 152 29.4 23.6 125 WOLVERINE 7650 16.4 9.6 171 17.2 12.2 141 ----- ----- Basin Index (%) 153 134 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 15.8 * CASTLE CREEK 8400 10.3 -M * 12.6 -M * COLD SPRINGS 9630 9.8 6.5 151 13.6 10.0 136 DEER PARK 9700 17.6 16.0 110 19.8 20.0 99 HOBBS PARK 10100 16.3 14.3 114 14.5 13.6 107 KIRWIN 9550 18.8 9.6 196 18.0 11.6 155 LITTLE WARM 9370 15.0 10.3 146 17.4 12.9 135 OWL CREEK 8975 8.3 5.8 143 8.3 6.1 136 SOUTH PASS 9040 16.8 15.5 108 15.5 17.5 89 ST. LAWRENCE ALT 8620 5.5 6.9 80 9.4 9.0 104 TOGWOTEE PASS 9580 32.7 22.3 147 33.2 24.2 137 TOWNSEND CREEK 8700 8.4 9.8 86 9.9 12.2 81 ----- ----- Basin Index (%) 128 116 BIGHORN BASIN BALD MTN. 9380 26.3 19.2 137 20.7 17.0 122 BEAR TRAP MEADOW 8200 11.5 4.8 240 11.5 8.7 132 BONE SPRINGS DIV 9350 22.2 17.0 131 17.7 15.6 113 GRAVE SPRINGS 8550 13.6 9.5 143 13.3 10.7 124 KIRWIN 9550 18.8 9.6 196 18.0 11.6 155 MARQUETTE 8760 15.6 -M * 13.7 -M * MIDDLE POWDER 7760 18.4 12.2 151 14.6 11.8 124 OWL CREEK 8975 8.3 5.8 143 8.3 6.1 136 POWDER RIVER PASS 9480 15.8 10.3 153 17.1 12.7 135 SHELL CREEK 9580 20.1 15.3 131 17.2 13.8 125 TIMBER CREEK 7950 7.0 5.1 137 9.1 7.4 123 ----- ----- Basin Index (%) 149 128 SHOSHONE RIVER BLACKWATER 9780 32.9 22.8 144 29.7 20.5 145 EVENING STAR 9200 39.7 23.9 166 40.8 27.2 150 MARQUETTE 8760 15.6 -M * 13.7 -M * SYLVAN ROAD 7120 16.2 10.6 153 21.8 16.6 131 YOUNTS PEAK 8350 -M 14.5 * -M 15.7 * ----- ----- Basin Index (%) 155 144 POWDER RIVER BEAR TRAP MEADOW 8200 11.5 4.8 240 11.5 8.7 132 CLOUD PEAK RESERVOIR 9860 21.3 15.0 142 18.9 13.5 140 GRAVE SPRINGS 8550 13.6 9.5 143 13.3 10.7 124 HANSEN SAWMILL 8360 10.5 6.1 172 12.7 8.7 146 MIDDLE POWDER 7760 18.4 12.2 151 14.6 11.8 124 POWDER RIVER PASS 9480 15.8 10.3 153 17.1 12.7 135 SOLDIER PARK 8720 13.8 -M * 12.1 -M * ----- ----- Basin Index (%) 157 133 TONGUE RIVER BIG GOOSE 7990 13.1 9.8 134 15.3 11.7 131 BONE SPRINGS DIV 9350 22.2 17.0 131 17.7 15.6 113 BURGESS JUNCTION 7880 16.3 12.0 136 16.6 12.4 134 DOME LAKE 8880 16.6 11.8 141 15.3 13.8 111 LITTLE GOOSE 8870 14.8 -M * 17.5 -M * SUCKER CREEK 8880 18.7 12.4 151 20.0 14.6 137 TIE CREEK 6870 9.7 5.5 176 15.5 11.9 130 ----- ----- Basin Index (%) 141 126 BELLE FOURCHE COLE CANYON 5910 7.8 4.6 170 14.4 9.6 150 ----- ----- Basin Index (%) 170 150 CHEYENNE RIVER BASIN BLIND PARK 6890 9.6 6.8 141 16.9 12.0 141 NORTH RAPID CREEK 6130 9.2 6.4 144 15.4 10.0 154 ----- ----- Basin Index (%) 142 147 UPPER N. PLATTE ARAPAHO RIDGE 10960 28.8 21.1 136 27.9 22.8 122 BLACKHALL MTN 9820 39.6 -M * -M -M * COLUMBINE 9160 38.3 23.3 164 -M 25.6 * DIVIDE PEAK 8880 21.6 20.1 107 24.2 21.5 113 JOE WRIGHT 10120 24.5 21.5 114 32.6 25.9 126 LAPRELE CREEK 8375 10.4 9.4 111 11.8 12.6 94 MED BOW 10500 6.1 -M * 35.8 -M * NORTH FRENCH CREEK 10130 38.9 30.0 130 32.4 26.9 120 NEVER SUMMER 10280 25.8 20.4 126 19.8 -M * OLD BATTLE 10000 35.9 31.6 114 38.7 35.2 110 RAWAH 9020 14.7 10.6 139 17.9 14.6 123 SAGE CREEK BASIN 7850 13.9 11.4 122 13.5 14.7 92 SAND LAKE 10050 35.9 29.3 123 34.0 25.0 136 SOUTH BRUSH CREEK 8440 14.0 11.8 119 16.0 15.3 105 TOWER 10500 53.7 46.3 116 -M 40.0 * WEBBER SPRINGS 9250 27.8 23.2 120 29.7 26.8 111 WILLOW CREEK PASS 9540 15.2 12.3 124 15.2 13.5 113 ZIRKEL 9340 43.0 26.1 165 -M 28.6 * ----- ----- Basin Index (%) 127 115 SWEETWATER DEER PARK 9700 17.6 16.0 110 19.8 20.0 99 LARSEN CREEK 9000 14.1 11.4 124 16.2 -M * SOUTH PASS 9040 16.8 15.5 108 15.5 17.5 89 ----- ----- Basin Index (%) 113 94 LOWER N. PLATTE CASPER MTN. 7900 19.2 14.4 133 16.6 15.2 109 LAPRELE CREEK 8375 10.4 9.4 111 11.8 12.6 94 RENO HILL 8400 19.6 14.1 139 21.3 15.7 136 WINDY PEAK 7900 9.6 7.6 126 12.3 10.6 116 ----- ----- Basin Index (%) 129 115 LARAMIE RIVER BROOKLYN LAKE 10240 33.0 22.1 149 31.1 21.2 147 CINNABAR PARK 9574 25.8 21.4 121 30.5 24.3 126 CROW CREEK 8330 7.4 6.8 109 11.7 11.0 106 DEADMAN HILL 10220 26.1 16.3 160 24.4 17.4 140 RAWAH 9020 14.7 10.6 139 17.9 14.6 123 ROACH 9700 22.6 16.6 136 25.0 19.3 130 ----- ----- Basin Index (%) 138 130 S. PLATTE BLACK MOUNTAIN 8920 13.2 -M * -M -M * CROW CREEK 8330 7.4 6.8 109 11.7 11.0 106 DEADMAN HILL 10220 26.1 16.3 160 24.4 17.4 140 ----- ----- Basin Index (%) 145 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.1 9.0 134 18.5 15.1 123 DIVIDE PEAK 8880 21.6 20.1 107 24.2 21.5 113 ELK RIVER 8700 23.4 18.9 124 23.4 20.1 116 LITTLE SNAKE RIVER 8915 33.6 25.8 130 36.2 30.0 121 OLD BATTLE 10000 35.9 31.6 114 38.7 35.2 110 SAGE CREEK BASIN 7850 13.9 11.4 122 13.5 14.7 92 SANDSTONE RS 8150 13.3 12.7 105 19.2 18.4 104 WHISKEY PARK 8950 44.3 27.6 161 41.4 28.1 147 ----- ----- Basin Index (%) 126 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 16.3 12.8 127 15.2 13.3 114 BLIND BULL SUM 8650 36.8 23.4 157 23.6 19.4 122 EAST RIM DIVIDE 7930 17.7 10.2 174 15.6 11.7 133 ELKHART PARK G.S. 9400 17.9 12.3 146 16.8 13.3 126 GROS VENTRE SUMMIT 8750 14.6 12.8 114 14.9 12.9 116 GUNSIGHT PASS 9820 20.7 13.9 149 19.2 13.9 138 KENDALL R.S. 7740 22.5 11.2 201 23.1 14.2 163 LOOMIS PARK 8240 25.5 13.8 185 24.9 17.3 144 NEW FORK LAKE 8340 16.4 10.2 161 13.6 10.8 126 POCKET CREEK 9360 12.9 -M * 12.7 -M * SNIDER BASIN 8060 19.3 12.3 157 19.6 14.1 139 SPRING CREEK DIVIDE 9000 36.4 22.6 161 33.3 23.7 141 TRIPLE PEAK 8500 -M 21.6 * 37.5 25.2 149 ----- ----- Basin Index (%) 157 136 LOWER GREEN RIVER BLACKS FORK JCT 8870 9.3 -M * 13.8 -M * BUCK PASTURE 9700 16.3 -M * 17.4 -M * EF BLACKS FORK GS 9360 11.1 -M * 10.5 -M * HAMS FORK 7840 16.8 10.3 163 13.9 11.4 122 HEWINTA 9519 13.4 10.8 124 14.7 14.1 104 HICKERSON PARK 9145 8.6 7.9 109 9.3 10.3 90 HOLE-IN-ROCK 9150 6.7 7.1 94 9.9 9.8 101 INDIAN CREEK 9425 33.8 24.8 136 27.2 22.5 121 KELLEY R.S. 8180 19.6 14.5 135 21.4 18.1 118 SPIRIT LK 10235 10.9 -M * 14.4 -M * STEEL CREEK PARK 10200 20.5 15.9 129 17.0 16.6 102 ----- ----- Basin Index (%) 131 110 UPPER BEAR RIVER BEAR RIVER RS 8777 8.8 -M * 12.7 -M * BUG LAKE 7950 24.7 18.7 132 21.2 19.4 109 BURTS MILLER RANCH 8000 5.9 -M * 7.2 -M * CHALK CREEK #1 8993 23.2 24.5 95 23.1 25.3 91 HAYDEN FORK 9212 17.8 15.2 117 21.2 21.2 100 KELLEY R.S. 8180 19.6 14.5 135 21.4 18.1 118 LILY LAKE 9156 14.5 12.8 113 15.4 17.3 89 MONTE CRISTO 8960 28.6 27.8 103 26.2 26.0 101 SALT RIVER SUMMIT 7760 18.6 12.6 148 19.4 16.6 117 ----- ----- Basin Index (%) 117 103 ----------------------------------------------------------------------------- -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.