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: FEBRUARY 26 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 17.5 13.3 132 18.4 17.0 108 BLACK BEAR 8170 28.2 28.9 98 26.9 30.3 89 BLIND BULL SUM 8650 28.1 17.5 161 18.1 15.7 115 COTTONWOOD CREEK 7670 25.3 16.3 155 27.1 19.2 141 EAST RIM DIVIDE 7930 13.8 7.8 177 12.2 9.4 130 GRAND TARGHEE 9260 34.6 29.2 118 25.9 24.5 106 GRANITE CREEK 6770 18.2 13.4 136 18.7 16.2 115 GRASSY LAKE 7265 27.6 25.6 108 27.7 29.1 95 GROS VENTRE SUMMIT 8750 12.1 9.5 127 11.2 9.9 113 GUNSIGHT PASS 9820 15.6 10.4 150 14.3 10.6 135 LEWIS LAKE DIVIDE 7850 26.6 25.1 106 28.3 28.4 100 PHILLIPS BENCH 8200 25.8 19.3 134 25.7 22.4 115 SALT RIVER SUMMIT 7760 14.6 10.4 140 15.8 13.2 120 SNAKE RIVER STATION 6920 15.4 14.0 110 18.4 18.4 100 SPRING CREEK DIVIDE 9000 29.1 18.0 162 27.5 19.0 145 THUMB DIVIDE 7980 12.2 11.8 103 11.7 14.4 81 TOGWOTEE PASS 9580 25.5 17.4 147 24.3 19.1 127 TWO OCEAN PLATEAU 9240 29.5 21.3 138 -M 21.4 * WILLOW CREEK 8380 31.0 21.9 142 31.1 26.4 118 YOUNTS PEAK 8350 -M 11.5 * -M 12.4 * ----- ----- Basin Index (%) 130 112 MADISON-GALLATIN BLACK BEAR 8170 28.2 28.9 98 26.9 30.3 89 CANYON 7870 11.1 10.3 108 12.7 12.8 99 MADISON PLATEAU 7750 16.2 17.5 93 16.7 20.8 80 WEST YELLOWSTONE 6700 9.8 8.7 113 10.9 11.4 96 WHISKEY CREEK 6800 11.9 11.8 101 13.9 16.0 87 ----- ----- Basin Index (%) 100 89 YELLOWSTONE BEARTOOTH LAKE 9360 22.8 16.2 141 21.1 15.5 136 BURNT MTN 5880 7.5 4.0 188 14.0 9.2 152 CANYON 7870 11.1 10.3 108 12.7 12.8 99 COLE CREEK 7850 14.7 9.3 158 10.7 8.9 120 EVENING STAR 9200 30.1 18.9 159 29.8 21.8 137 FISHER CREEK 9100 32.4 25.2 129 27.9 25.1 111 NORTHEAST ENTRANCE 7350 11.5 7.8 147 11.6 9.8 118 PARKER PEAK 9400 23.3 15.6 149 20.1 13.8 146 SYLVAN LAKE 8420 18.1 15.6 116 20.6 17.7 116 THUMB DIVIDE 7980 12.2 11.8 103 11.7 14.4 81 TWO OCEAN PLATEAU 9240 29.5 21.3 138 -M 21.4 * WHITE MILL 8700 24.4 18.0 136 21.0 18.7 112 WOLVERINE 7650 14.6 8.5 172 13.0 9.8 133 ----- ----- Basin Index (%) 138 121 WIND RIVER BURROUGHS CREEK 8750 -M 10.5 * -M 12.5 * CASTLE CREEK 8400 9.2 -M * 10.6 -M * COLD SPRINGS 9630 9.2 5.4 170 11.3 7.3 155 DEER PARK 9700 9.4 10.7 88 13.4 14.9 90 HOBBS PARK 10100 11.0 9.3 118 9.7 9.3 104 KIRWIN 9550 15.3 6.8 225 12.9 8.6 150 LITTLE WARM 9370 11.7 7.8 150 13.8 9.7 142 OWL CREEK 8975 5.7 3.8 150 5.7 4.2 136 SOUTH PASS 9040 11.8 11.1 106 10.9 13.2 83 ST. LAWRENCE ALT 8620 3.6 5.0 72 6.8 6.3 108 TOGWOTEE PASS 9580 25.5 17.4 147 24.3 19.1 127 TOWNSEND CREEK 8700 5.2 6.3 83 6.2 8.5 73 ----- ----- Basin Index (%) 130 114 BIGHORN BASIN BALD MTN. 9380 19.4 14.3 136 14.7 12.8 115 BEAR TRAP MEADOW 8200 8.1 4.2 193 8.2 6.0 137 BONE SPRINGS DIV 9350 16.2 11.6 140 12.4 11.4 109 GRAVE SPRINGS 8550 9.0 6.5 138 9.3 7.7 121 KIRWIN 9550 15.3 6.8 225 12.9 8.6 150 MARQUETTE 8760 9.0 -M * 9.7 -M * MIDDLE POWDER 7760 12.2 7.8 156 10.1 8.6 117 OWL CREEK 8975 5.7 3.8 150 5.7 4.2 136 POWDER RIVER PASS 9480 12.3 7.7 160 12.9 9.4 137 SHELL CREEK 9580 14.6 11.2 130 12.4 10.3 120 TIMBER CREEK 7950 5.1 3.2 159 6.7 5.1 131 ----- ----- Basin Index (%) 153 125 SHOSHONE RIVER BLACKWATER 9780 25.0 16.8 149 22.1 15.8 140 EVENING STAR 9200 30.1 18.9 159 29.8 21.8 137 MARQUETTE 8760 9.0 -M * 9.7 -M * SYLVAN ROAD 7120 12.4 9.1 136 16.5 13.7 120 YOUNTS PEAK 8350 -M 11.5 * -M 12.4 * ----- ----- Basin Index (%) 151 133 POWDER RIVER BEAR TRAP MEADOW 8200 8.1 4.2 193 8.2 6.0 137 CLOUD PEAK RESERVOIR 9860 15.2 10.2 149 13.3 9.3 143 GRAVE SPRINGS 8550 9.0 6.5 138 9.3 7.7 121 HANSEN SAWMILL 8360 7.2 4.6 157 9.2 5.9 156 MIDDLE POWDER 7760 12.2 7.8 156 10.1 8.6 117 POWDER RIVER PASS 9480 12.3 7.7 160 12.9 9.4 137 SOLDIER PARK 8720 8.7 -M * 8.3 -M * ----- ----- Basin Index (%) 156 134 TONGUE RIVER BIG GOOSE 7990 7.9 6.1 130 9.9 7.7 129 BONE SPRINGS DIV 9350 16.2 11.6 140 12.4 11.4 109 BURGESS JUNCTION 7880 10.7 8.0 134 11.5 8.8 131 DOME LAKE 8880 10.5 8.4 125 9.7 9.8 99 LITTLE GOOSE 8870 9.0 -M * 11.6 -M * SUCKER CREEK 8880 12.6 8.7 145 14.0 10.3 136 TIE CREEK 6870 6.1 4.2 145 10.9 8.1 135 ----- ----- Basin Index (%) 136 122 BELLE FOURCHE COLE CANYON 5910 5.5 4.9 112 11.7 7.0 167 ----- ----- Basin Index (%) 112 167 CHEYENNE RIVER BASIN BLIND PARK 6890 8.0 6.2 129 14.8 9.2 161 NORTH RAPID CREEK 6130 7.6 5.8 131 13.3 7.4 180 ----- ----- Basin Index (%) 130 169 UPPER N. PLATTE ARAPAHO RIDGE 10960 21.6 16.1 134 21.4 17.3 124 BLACKHALL MTN 9820 28.5 -M * 27.2 -M * COLUMBINE 9160 28.4 19.3 147 -M 20.0 * DIVIDE PEAK 8880 14.2 15.3 93 17.8 16.5 108 JOE WRIGHT 10120 15.7 16.0 98 25.2 19.6 129 LAPRELE CREEK 8375 5.5 7.5 73 7.5 9.2 82 MED BOW 10500 15.3 -M * 28.9 -M * NORTH FRENCH CREEK 10130 -M 20.6 * -M 20.7 * NEVER SUMMER 10280 19.1 15.8 121 15.1 -M * OLD BATTLE 10000 25.5 23.6 108 29.3 27.4 107 RAWAH 9020 11.1 8.4 132 13.6 10.6 128 SAGE CREEK BASIN 7850 9.0 10.5 86 9.9 11.5 86 SAND LAKE 10050 24.5 20.7 118 23.8 18.6 128 SOUTH BRUSH CREEK 8440 9.2 9.9 93 11.4 11.5 99 TOWER 10500 41.5 35.6 117 31.1 31.2 100 WEBBER SPRINGS 9250 19.6 18.3 107 22.2 20.8 107 WILLOW CREEK PASS 9540 10.9 9.2 118 11.6 10.1 115 ZIRKEL 9340 33.5 22.6 148 27.4 23.0 119 ----- ----- Basin Index (%) 116 111 SWEETWATER DEER PARK 9700 9.4 10.7 88 13.4 14.9 90 LARSEN CREEK 9000 9.9 9.3 106 11.9 -M * SOUTH PASS 9040 11.8 11.1 106 10.9 13.2 83 ----- ----- Basin Index (%) 100 86 LOWER N. PLATTE CASPER MTN. 7900 -M 9.8 * -M 10.9 * LAPRELE CREEK 8375 5.5 7.5 73 7.5 9.2 82 RENO HILL 8400 12.0 9.6 125 13.9 10.9 128 WINDY PEAK 7900 5.6 5.7 98 8.4 7.7 109 ----- ----- Basin Index (%) 101 107 LARAMIE RIVER BROOKLYN LAKE 10240 24.6 14.7 167 23.3 15.8 147 CINNABAR PARK 9574 18.3 16.7 110 20.4 19.4 105 CROW CREEK 8330 6.5 6.6 98 9.2 7.7 119 DEADMAN HILL 10220 19.5 12.3 159 18.4 12.5 147 RAWAH 9020 11.1 8.4 132 13.6 10.6 128 ROACH 9700 -M 12.2 * -M 14.4 * ----- ----- Basin Index (%) 136 129 S. PLATTE BLACK MOUNTAIN 8920 9.4 -M * 10.8 -M * CROW CREEK 8330 6.5 6.6 98 9.2 7.7 119 DEADMAN HILL 10220 19.5 12.3 159 18.4 12.5 147 ----- ----- Basin Index (%) 138 137 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.2 9.7 95 13.3 11.9 112 DIVIDE PEAK 8880 14.2 15.3 93 17.8 16.5 108 ELK RIVER 8700 16.6 14.9 111 17.7 15.7 113 LITTLE SNAKE RIVER 8915 23.8 19.5 122 28.4 24.7 115 OLD BATTLE 10000 25.5 23.6 108 29.3 27.4 107 SAGE CREEK BASIN 7850 9.0 10.5 86 9.9 11.5 86 SANDSTONE RS 8150 9.8 10.3 95 14.3 14.9 96 WHISKEY PARK 8950 31.5 20.8 151 30.8 22.0 140 ----- ----- Basin Index (%) 112 112 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.7 9.8 119 11.0 10.3 107 BLIND BULL SUM 8650 28.1 17.5 161 18.1 15.7 115 EAST RIM DIVIDE 7930 13.8 7.8 177 12.2 9.4 130 ELKHART PARK G.S. 9400 14.2 9.2 154 13.1 10.3 127 GROS VENTRE SUMMIT 8750 12.1 9.5 127 11.2 9.9 113 GUNSIGHT PASS 9820 15.6 10.4 150 14.3 10.6 135 KENDALL R.S. 7740 16.8 9.6 175 17.0 11.5 148 LOOMIS PARK 8240 18.5 11.5 161 19.2 13.8 139 NEW FORK LAKE 8340 12.6 8.0 158 10.6 8.6 123 POCKET CREEK 9360 9.9 -M * 10.1 -M * SNIDER BASIN 8060 17.1 9.4 182 16.8 11.3 149 SPRING CREEK DIVIDE 9000 29.1 18.0 162 27.5 19.0 145 TRIPLE PEAK 8500 28.4 16.5 172 29.9 19.9 150 ----- ----- Basin Index (%) 159 134 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.4 -M * 10.2 -M * BUCK PASTURE 9700 10.5 -M * 12.1 -M * EF BLACKS FORK GS 9360 6.8 -M * 7.9 -M * HAMS FORK 7840 13.3 9.0 148 11.6 9.0 129 HEWINTA 9519 7.5 7.6 99 10.6 10.6 100 HICKERSON PARK 9145 5.6 5.6 100 6.9 7.4 93 HOLE-IN-ROCK 9150 5.3 5.4 98 7.0 6.9 101 INDIAN CREEK 9425 25.4 18.3 139 21.3 17.5 122 KELLEY R.S. 8180 15.3 11.7 131 17.0 14.4 118 SPIRIT LK 10235 6.7 -M * 10.1 -M * STEEL CREEK PARK 10200 14.6 11.2 130 12.4 12.1 102 ----- ----- Basin Index (%) 126 111 UPPER BEAR RIVER BEAR RIVER RS 8777 7.0 -M * 9.2 -M * BUG LAKE 7950 17.4 14.4 121 15.4 15.2 101 BURTS MILLER RANCH 8000 5.1 -M * 5.4 -M * CHALK CREEK #1 8993 16.4 17.8 92 16.8 19.1 88 HAYDEN FORK 9212 11.6 11.7 99 15.6 16.0 98 KELLEY R.S. 8180 15.3 11.7 131 17.0 14.4 118 LILY LAKE 9156 10.3 9.9 104 11.7 13.0 90 MONTE CRISTO 8960 20.0 20.2 99 18.7 20.2 93 SALT RIVER SUMMIT 7760 14.6 10.4 140 15.8 13.2 120 ----- ----- Basin Index (%) 110 100 ----------------------------------------------------------------------------- -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.