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: APRIL 12 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 23.4 14.4 162 26.8 21.1 127 BLACK BEAR 8170 41.8 36.7 114 40.6 38.6 105 BLIND BULL SUM 8650 36.4 23.6 154 23.6 19.6 120 COTTONWOOD CREEK 7670 31.0 20.5 151 34.9 24.9 140 EAST RIM DIVIDE 7930 16.0 10.1 158 15.6 11.8 132 GRAND TARGHEE 9260 51.1 40.0 128 -M 31.3 * GRANITE CREEK 6770 23.4 13.3 176 24.3 19.7 123 GRASSY LAKE 7265 42.8 31.4 136 40.0 36.2 110 GROS VENTRE SUMMIT 8750 14.4 12.8 112 14.8 13.1 113 GUNSIGHT PASS 9820 20.7 13.7 151 19.2 14.1 136 LEWIS LAKE DIVIDE 7850 40.3 30.2 133 -M 35.8 * PHILLIPS BENCH 8200 35.0 25.9 135 34.7 28.4 122 SALT RIVER SUMMIT 7760 17.6 12.1 145 19.4 16.8 115 SNAKE RIVER STATION 6920 -M 13.9 * -M 22.7 * SPRING CREEK DIVIDE 9000 36.2 22.9 158 33.2 24.0 138 THUMB DIVIDE 7980 20.2 14.6 138 18.9 18.8 101 TOGWOTEE PASS 9580 30.8 22.7 136 33.4 24.6 136 TWO OCEAN PLATEAU 9240 41.2 26.7 154 -M 27.5 * WILLOW CREEK 8380 40.5 27.5 147 41.9 34.0 123 YOUNTS PEAK 8350 -M 14.5 * -M 16.0 * ----- ----- Basin Index (%) 141 122 MADISON-GALLATIN BLACK BEAR 8170 41.8 36.7 114 40.6 38.6 105 CANYON 7870 15.2 12.3 124 17.0 16.4 104 MADISON PLATEAU 7750 25.2 22.2 114 25.3 26.5 95 WEST YELLOWSTONE 6700 12.3 8.6 143 16.2 14.2 114 WHISKEY CREEK 6800 17.4 14.6 119 21.1 20.4 103 ----- ----- Basin Index (%) 119 104 YELLOWSTONE BEARTOOTH LAKE 9360 32.0 21.8 147 30.2 20.0 151 BURNT MTN 5880 9.5 2.4 396 19.7 13.3 148 CANYON 7870 15.2 12.3 124 17.0 16.4 104 COLE CREEK 7850 22.5 15.3 147 16.3 13.5 121 EVENING STAR 9200 39.6 24.2 164 40.9 27.7 148 FISHER CREEK 9100 44.2 31.6 140 40.2 32.0 126 NORTHEAST ENTRANCE 7350 14.7 8.5 173 15.9 12.4 128 PARKER PEAK 9400 32.6 20.1 162 29.5 17.9 165 SYLVAN LAKE 8420 24.4 19.8 123 29.2 22.6 129 THUMB DIVIDE 7980 20.2 14.6 138 18.9 18.8 101 TWO OCEAN PLATEAU 9240 41.2 26.7 154 -M 27.5 * WHITE MILL 8700 33.9 23.1 147 29.4 24.0 122 WOLVERINE 7650 16.9 9.2 184 17.3 12.3 141 ----- ----- Basin Index (%) 151 132 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 16.1 * CASTLE CREEK 8400 9.5 -M * 12.4 -M * COLD SPRINGS 9630 9.8 6.1 161 13.2 10.3 128 DEER PARK 9700 -M 16.2 * 19.8 20.5 97 HOBBS PARK 10100 15.7 14.8 106 14.3 14.0 102 KIRWIN 9550 19.5 9.8 199 18.4 11.8 156 LITTLE WARM 9370 14.6 10.3 142 17.4 13.1 133 OWL CREEK 8975 7.7 5.6 138 8.3 6.3 132 SOUTH PASS 9040 15.3 15.8 97 15.5 17.8 87 ST. LAWRENCE ALT 8620 4.4 6.8 65 9.1 9.3 98 TOGWOTEE PASS 9580 30.8 22.7 136 33.4 24.6 136 TOWNSEND CREEK 8700 8.0 10.0 80 10.0 12.6 79 ----- ----- Basin Index (%) 123 114 BIGHORN BASIN BALD MTN. 9380 26.4 19.3 137 20.7 17.4 119 BEAR TRAP MEADOW 8200 10.9 4.6 237 11.8 8.8 134 BONE SPRINGS DIV 9350 22.3 17.0 131 17.7 15.9 111 GRAVE SPRINGS 8550 12.9 9.6 134 13.4 11.0 122 KIRWIN 9550 19.5 9.8 199 18.4 11.8 156 MARQUETTE 8760 15.6 -M * 13.8 -M * MIDDLE POWDER 7760 18.2 12.4 147 14.9 12.0 124 OWL CREEK 8975 7.7 5.6 138 8.3 6.3 132 POWDER RIVER PASS 9480 15.9 10.3 154 17.5 13.0 135 SHELL CREEK 9580 20.4 15.6 131 17.4 14.1 123 TIMBER CREEK 7950 6.4 5.1 125 9.4 7.6 124 ----- ----- Basin Index (%) 147 127 SHOSHONE RIVER BLACKWATER 9780 33.0 23.3 142 29.9 20.9 143 EVENING STAR 9200 39.6 24.2 164 40.9 27.7 148 MARQUETTE 8760 15.6 -M * 13.8 -M * SYLVAN ROAD 7120 14.9 10.4 143 22.0 16.9 130 YOUNTS PEAK 8350 -M 14.5 * -M 16.0 * ----- ----- Basin Index (%) 151 142 POWDER RIVER BEAR TRAP MEADOW 8200 10.9 4.6 237 11.8 8.8 134 CLOUD PEAK RESERVOIR 9860 21.5 15.3 141 19.2 13.8 139 GRAVE SPRINGS 8550 12.9 9.6 134 13.4 11.0 122 HANSEN SAWMILL 8360 10.2 6.1 167 12.8 8.9 144 MIDDLE POWDER 7760 18.2 12.4 147 14.9 12.0 124 POWDER RIVER PASS 9480 15.9 10.3 154 17.5 13.0 135 SOLDIER PARK 8720 13.2 -M * 12.2 -M * ----- ----- Basin Index (%) 154 133 TONGUE RIVER BIG GOOSE 7990 12.4 9.9 125 15.4 12.0 128 BONE SPRINGS DIV 9350 22.3 17.0 131 17.7 15.9 111 BURGESS JUNCTION 7880 16.3 12.2 134 16.6 12.8 130 DOME LAKE 8880 16.5 11.9 139 15.6 14.1 111 LITTLE GOOSE 8870 14.7 -M * 17.7 -M * SUCKER CREEK 8880 18.5 12.5 148 20.2 14.9 136 TIE CREEK 6870 8.8 5.2 169 15.6 12.1 129 ----- ----- Basin Index (%) 138 124 BELLE FOURCHE COLE CANYON 5910 7.4 4.1 180 14.4 9.8 147 ----- ----- Basin Index (%) 180 147 CHEYENNE RIVER BASIN BLIND PARK 6890 8.1 6.2 131 16.8 12.3 137 NORTH RAPID CREEK 6130 7.6 6.0 127 15.4 10.3 150 ----- ----- Basin Index (%) 129 142 UPPER N. PLATTE ARAPAHO RIDGE 10960 29.0 21.4 136 28.0 23.4 120 BLACKHALL MTN 9820 39.3 -M * -M -M * COLUMBINE 9160 36.4 22.8 160 -M 26.0 * DIVIDE PEAK 8880 20.9 20.3 103 24.1 21.9 110 JOE WRIGHT 10120 24.5 21.9 112 32.6 26.5 123 LAPRELE CREEK 8375 9.3 9.4 99 11.8 12.9 91 MED BOW 10500 -M -M * 37.2 -M * NORTH FRENCH CREEK 10130 38.8 31.0 125 -M 27.4 * NEVER SUMMER 10280 25.5 20.5 124 19.9 -M * OLD BATTLE 10000 36.0 32.0 112 38.6 35.6 108 RAWAH 9020 13.0 10.2 127 18.0 14.9 121 SAGE CREEK BASIN 7850 12.1 10.3 117 13.5 14.9 91 SAND LAKE 10050 35.6 30.0 119 34.1 25.5 134 SOUTH BRUSH CREEK 8440 12.7 11.5 110 16.1 15.7 103 TOWER 10500 53.7 47.1 114 -M 40.5 * WEBBER SPRINGS 9250 27.1 23.4 116 29.7 27.3 109 WILLOW CREEK PASS 9540 15.5 12.5 124 15.0 13.8 109 ZIRKEL 9340 41.9 25.1 167 -M 29.1 * ----- ----- Basin Index (%) 124 113 SWEETWATER DEER PARK 9700 -M 16.2 * 19.8 20.5 97 LARSEN CREEK 9000 12.5 11.1 113 16.1 -M * SOUTH PASS 9040 15.3 15.8 97 15.5 17.8 87 ----- ----- Basin Index (%) 103 92 LOWER N. PLATTE CASPER MTN. 7900 18.8 14.5 130 16.6 15.6 106 LAPRELE CREEK 8375 9.3 9.4 99 11.8 12.9 91 RENO HILL 8400 18.9 14.2 133 21.3 16.1 132 WINDY PEAK 7900 8.8 7.5 117 12.3 10.9 113 ----- ----- Basin Index (%) 122 112 LARAMIE RIVER BROOKLYN LAKE 10240 32.5 22.3 146 31.4 21.7 145 CINNABAR PARK 9574 25.4 21.4 119 30.5 24.8 123 CROW CREEK 8330 5.7 5.9 97 11.6 11.3 103 DEADMAN HILL 10220 25.8 16.6 155 24.4 17.9 136 RAWAH 9020 13.0 10.2 127 18.0 14.9 121 ROACH 9700 22.1 16.5 134 25.0 19.7 127 ----- ----- Basin Index (%) 134 128 S. PLATTE BLACK MOUNTAIN 8920 12.2 -M * -M -M * CROW CREEK 8330 5.7 5.9 97 11.6 11.3 103 DEADMAN HILL 10220 25.8 16.6 155 24.4 17.9 136 ----- ----- Basin Index (%) 140 123 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.8 8.0 122 18.5 15.3 121 DIVIDE PEAK 8880 20.9 20.3 103 24.1 21.9 110 ELK RIVER 8700 21.8 18.2 120 23.4 20.5 114 LITTLE SNAKE RIVER 8915 31.9 26.0 123 36.2 30.6 118 OLD BATTLE 10000 36.0 32.0 112 38.6 35.6 108 SAGE CREEK BASIN 7850 12.1 10.3 117 13.5 14.9 91 SANDSTONE RS 8150 11.9 12.5 95 19.1 18.7 102 WHISKEY PARK 8950 42.7 27.6 155 41.5 28.4 146 ----- ----- Basin Index (%) 121 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.0 12.9 116 15.2 13.5 113 BLIND BULL SUM 8650 36.4 23.6 154 23.6 19.6 120 EAST RIM DIVIDE 7930 16.0 10.1 158 15.6 11.8 132 ELKHART PARK G.S. 9400 17.7 12.3 144 16.9 13.5 125 GROS VENTRE SUMMIT 8750 14.4 12.8 112 14.8 13.1 113 GUNSIGHT PASS 9820 20.7 13.7 151 19.2 14.1 136 KENDALL R.S. 7740 21.5 10.7 201 23.0 14.3 161 LOOMIS PARK 8240 24.6 13.7 180 24.9 17.4 143 NEW FORK LAKE 8340 15.8 9.9 160 13.6 10.9 125 POCKET CREEK 9360 12.2 -M * 12.7 -M * SNIDER BASIN 8060 18.6 12.2 152 19.6 14.3 137 SPRING CREEK DIVIDE 9000 36.2 22.9 158 33.2 24.0 138 TRIPLE PEAK 8500 32.6 20.7 157 37.5 25.5 147 ----- ----- Basin Index (%) 154 134 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.4 -M * 13.8 -M * BUCK PASTURE 9700 16.0 -M * 17.3 -M * EF BLACKS FORK GS 9360 9.9 -M * 10.4 -M * HAMS FORK 7840 14.4 9.5 152 13.9 11.5 121 HEWINTA 9519 11.0 10.5 105 14.7 14.4 102 HICKERSON PARK 9145 6.6 7.5 88 9.3 10.6 88 HOLE-IN-ROCK 9150 5.9 7.1 83 9.9 10.1 98 INDIAN CREEK 9425 33.1 24.6 135 27.2 22.8 119 KELLEY R.S. 8180 18.7 14.2 132 21.3 18.3 116 SPIRIT LK 10235 10.4 -M * 14.5 -M * STEEL CREEK PARK 10200 20.4 16.1 127 16.9 17.0 99 ----- ----- Basin Index (%) 123 108 UPPER BEAR RIVER BEAR RIVER RS 8777 7.0 -M * 12.6 -M * BUG LAKE 7950 24.0 19.1 126 21.2 19.7 108 BURTS MILLER RANCH 8000 2.9 -M * 6.9 -M * CHALK CREEK #1 8993 22.2 24.7 90 23.1 25.8 90 HAYDEN FORK 9212 15.0 14.7 102 21.2 21.5 99 KELLEY R.S. 8180 18.7 14.2 132 21.3 18.3 116 LILY LAKE 9156 13.3 12.7 105 15.4 17.6 88 MONTE CRISTO 8960 27.6 27.8 99 26.2 26.5 99 SALT RIVER SUMMIT 7760 17.6 12.1 145 19.4 16.8 115 ----- ----- Basin Index (%) 110 101 ----------------------------------------------------------------------------- -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.