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 TUESDAY: FEBRUARY 25 , 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 13.2 133 18.2 16.9 108 BLACK BEAR 8170 28.1 28.7 98 26.7 30.1 89 BLIND BULL SUM 8650 27.6 17.4 159 18.0 15.7 115 COTTONWOOD CREEK 7670 24.9 16.2 154 26.7 19.1 140 EAST RIM DIVIDE 7930 13.7 7.7 178 12.2 9.4 130 GRAND TARGHEE 9260 34.3 28.9 119 25.9 24.3 107 GRANITE CREEK 6770 17.8 13.3 134 18.1 16.2 112 GRASSY LAKE 7265 27.5 25.4 108 26.4 29.0 91 GROS VENTRE SUMMIT 8750 12.0 9.4 128 11.3 9.9 114 GUNSIGHT PASS 9820 15.4 10.3 150 14.3 10.6 135 LEWIS LAKE DIVIDE 7850 26.4 25.0 106 -M 28.3 * PHILLIPS BENCH 8200 25.4 19.2 132 25.4 22.3 114 SALT RIVER SUMMIT 7760 14.6 10.3 142 15.8 13.2 120 SNAKE RIVER STATION 6920 15.3 13.9 110 18.4 18.3 101 SPRING CREEK DIVIDE 9000 28.8 17.8 162 27.3 18.9 144 THUMB DIVIDE 7980 12.4 11.7 106 11.8 14.3 83 TOGWOTEE PASS 9580 25.2 17.3 146 24.3 19.0 128 TWO OCEAN PLATEAU 9240 29.2 21.2 138 -M 21.2 * WILLOW CREEK 8380 30.4 21.8 139 -M 26.2 * YOUNTS PEAK 8350 -M 11.4 * -M 12.4 * ----- ----- Basin Index (%) 130 112 MADISON-GALLATIN BLACK BEAR 8170 28.1 28.7 98 26.7 30.1 89 CANYON 7870 10.9 10.2 107 12.6 12.8 98 MADISON PLATEAU 7750 16.1 17.4 93 16.6 20.7 80 WEST YELLOWSTONE 6700 9.8 8.6 114 10.9 11.4 96 WHISKEY CREEK 6800 11.8 11.7 101 13.8 16.0 86 ----- ----- Basin Index (%) 100 89 YELLOWSTONE BEARTOOTH LAKE 9360 22.6 16.1 140 20.9 15.4 136 BURNT MTN 5880 7.2 4.0 180 13.6 9.1 149 CANYON 7870 10.9 10.2 107 12.6 12.8 98 COLE CREEK 7850 14.5 9.2 158 10.5 8.8 119 EVENING STAR 9200 29.7 18.8 158 29.5 21.7 136 FISHER CREEK 9100 32.2 25.1 128 27.6 25.0 110 NORTHEAST ENTRANCE 7350 11.4 7.8 146 11.5 9.7 119 PARKER PEAK 9400 23.1 15.5 149 19.7 13.7 144 SYLVAN LAKE 8420 17.8 15.5 115 20.4 17.6 116 THUMB DIVIDE 7980 12.4 11.7 106 11.8 14.3 83 TWO OCEAN PLATEAU 9240 29.2 21.2 138 -M 21.2 * WHITE MILL 8700 24.2 17.9 135 20.7 18.6 111 WOLVERINE 7650 14.1 8.4 168 12.5 9.7 129 ----- ----- Basin Index (%) 137 120 WIND RIVER BURROUGHS CREEK 8750 -M 10.5 * -M 12.4 * CASTLE CREEK 8400 9.0 -M * 10.6 -M * COLD SPRINGS 9630 9.1 5.4 169 11.2 7.3 153 DEER PARK 9700 9.3 10.6 88 13.3 14.8 90 HOBBS PARK 10100 10.9 9.3 117 9.7 9.2 105 KIRWIN 9550 15.1 6.7 225 12.7 8.6 148 LITTLE WARM 9370 11.5 7.7 149 13.6 9.6 142 OWL CREEK 8975 5.7 3.8 150 5.6 4.2 133 SOUTH PASS 9040 11.7 11.0 106 10.8 13.2 82 ST. LAWRENCE ALT 8620 3.5 5.0 70 6.7 6.3 106 TOGWOTEE PASS 9580 25.2 17.3 146 24.3 19.0 128 TOWNSEND CREEK 8700 5.1 6.2 82 6.1 8.4 73 ----- ----- Basin Index (%) 129 113 BIGHORN BASIN BALD MTN. 9380 19.3 14.2 136 14.5 12.6 115 BEAR TRAP MEADOW 8200 8.1 4.2 193 8.2 6.0 137 BONE SPRINGS DIV 9350 16.1 11.5 140 12.3 11.4 108 GRAVE SPRINGS 8550 8.9 6.4 139 9.3 7.6 122 KIRWIN 9550 15.1 6.7 225 12.7 8.6 148 MARQUETTE 8760 8.9 -M * 9.6 -M * MIDDLE POWDER 7760 12.2 7.7 158 10.1 8.4 120 OWL CREEK 8975 5.7 3.8 150 5.6 4.2 133 POWDER RIVER PASS 9480 12.2 7.7 158 12.8 9.3 138 SHELL CREEK 9580 14.5 11.0 132 12.3 10.3 119 TIMBER CREEK 7950 5.0 3.1 161 6.6 5.1 129 ----- ----- Basin Index (%) 153 125 SHOSHONE RIVER BLACKWATER 9780 24.8 16.8 148 21.9 15.8 139 EVENING STAR 9200 29.7 18.8 158 29.5 21.7 136 MARQUETTE 8760 8.9 -M * 9.6 -M * SYLVAN ROAD 7120 12.1 9.0 134 16.2 13.6 119 YOUNTS PEAK 8350 -M 11.4 * -M 12.4 * ----- ----- Basin Index (%) 149 132 POWDER RIVER BEAR TRAP MEADOW 8200 8.1 4.2 193 8.2 6.0 137 CLOUD PEAK RESERVOIR 9860 15.1 10.1 150 13.2 9.3 142 GRAVE SPRINGS 8550 8.9 6.4 139 9.3 7.6 122 HANSEN SAWMILL 8360 6.9 4.5 153 8.9 5.9 151 MIDDLE POWDER 7760 12.2 7.7 158 10.1 8.4 120 POWDER RIVER PASS 9480 12.2 7.7 158 12.8 9.3 138 SOLDIER PARK 8720 8.6 -M * 8.2 -M * ----- ----- Basin Index (%) 156 134 TONGUE RIVER BIG GOOSE 7990 7.7 6.0 128 9.7 7.6 128 BONE SPRINGS DIV 9350 16.1 11.5 140 12.3 11.4 108 BURGESS JUNCTION 7880 10.5 8.0 131 11.4 8.7 131 DOME LAKE 8880 10.4 8.4 124 9.6 9.7 99 LITTLE GOOSE 8870 8.8 -M * 11.4 -M * SUCKER CREEK 8880 12.5 8.6 145 13.9 10.2 136 TIE CREEK 6870 5.8 4.2 138 10.6 8.0 132 ----- ----- Basin Index (%) 135 121 BELLE FOURCHE COLE CANYON 5910 5.5 4.9 112 11.7 6.9 170 ----- ----- Basin Index (%) 112 170 CHEYENNE RIVER BASIN BLIND PARK 6890 8.0 6.2 129 14.7 9.1 162 NORTH RAPID CREEK 6130 7.7 5.8 133 13.3 7.3 182 ----- ----- Basin Index (%) 131 171 UPPER N. PLATTE ARAPAHO RIDGE 10960 21.6 16.0 135 21.4 17.2 124 BLACKHALL MTN 9820 28.5 -M * 26.9 -M * COLUMBINE 9160 28.3 19.2 147 -M 19.8 * DIVIDE PEAK 8880 14.3 15.2 94 17.9 16.4 109 JOE WRIGHT 10120 15.6 15.9 98 25.2 19.4 130 LAPRELE CREEK 8375 5.9 7.5 79 7.5 9.1 82 MED BOW 10500 14.6 -M * 28.4 -M * NORTH FRENCH CREEK 10130 -M 20.4 * -M 20.4 * NEVER SUMMER 10280 19.0 15.6 122 15.1 -M * OLD BATTLE 10000 25.7 23.5 109 29.4 27.2 108 RAWAH 9020 10.9 8.3 131 13.6 10.5 130 SAGE CREEK BASIN 7850 8.9 10.4 86 9.9 11.5 86 SAND LAKE 10050 24.2 20.5 118 23.6 18.4 128 SOUTH BRUSH CREEK 8440 9.1 9.8 93 11.5 11.4 101 TOWER 10500 41.4 35.4 117 -M 31.0 * WEBBER SPRINGS 9250 19.7 18.2 108 22.1 20.6 107 WILLOW CREEK PASS 9540 10.9 9.2 118 11.7 10.0 117 ZIRKEL 9340 33.0 22.5 147 27.4 22.8 120 ----- ----- Basin Index (%) 117 114 SWEETWATER DEER PARK 9700 9.3 10.6 88 13.3 14.8 90 LARSEN CREEK 9000 9.9 9.2 108 11.8 -M * SOUTH PASS 9040 11.7 11.0 106 10.8 13.2 82 ----- ----- Basin Index (%) 100 86 LOWER N. PLATTE CASPER MTN. 7900 -M 9.7 * -M 10.8 * LAPRELE CREEK 8375 5.9 7.5 79 7.5 9.1 82 RENO HILL 8400 12.0 9.5 126 14.2 10.8 131 WINDY PEAK 7900 5.4 5.6 96 8.0 7.6 105 ----- ----- Basin Index (%) 103 108 LARAMIE RIVER BROOKLYN LAKE 10240 23.9 14.6 164 23.2 15.6 149 CINNABAR PARK 9574 17.9 16.6 108 20.6 19.2 107 CROW CREEK 8330 6.5 6.6 98 9.1 7.6 120 DEADMAN HILL 10220 19.3 12.2 158 18.5 12.4 149 RAWAH 9020 10.9 8.3 131 13.6 10.5 130 ROACH 9700 15.5 12.1 128 18.5 14.3 129 ----- ----- Basin Index (%) 134 130 S. PLATTE BLACK MOUNTAIN 8920 9.2 -M * 10.7 -M * CROW CREEK 8330 6.5 6.6 98 9.1 7.6 120 DEADMAN HILL 10220 19.3 12.2 158 18.5 12.4 149 ----- ----- Basin Index (%) 137 138 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.8 9.5 93 13.4 11.8 114 DIVIDE PEAK 8880 14.3 15.2 94 17.9 16.4 109 ELK RIVER 8700 16.6 14.7 113 17.7 15.6 113 LITTLE SNAKE RIVER 8915 23.9 19.4 123 28.5 24.4 117 OLD BATTLE 10000 25.7 23.5 109 29.4 27.2 108 SAGE CREEK BASIN 7850 8.9 10.4 86 9.9 11.5 86 SANDSTONE RS 8150 9.7 10.3 94 14.4 14.7 98 WHISKEY PARK 8950 31.4 20.7 152 30.8 21.9 141 ----- ----- Basin Index (%) 113 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.8 9.7 122 11.1 10.2 109 BLIND BULL SUM 8650 27.6 17.4 159 18.0 15.7 115 EAST RIM DIVIDE 7930 13.7 7.7 178 12.2 9.4 130 ELKHART PARK G.S. 9400 14.1 9.2 153 13.1 10.3 127 GROS VENTRE SUMMIT 8750 12.0 9.4 128 11.3 9.9 114 GUNSIGHT PASS 9820 15.4 10.3 150 14.3 10.6 135 KENDALL R.S. 7740 16.7 9.6 174 17.0 11.4 149 LOOMIS PARK 8240 18.3 11.4 161 19.1 13.8 138 NEW FORK LAKE 8340 12.5 7.9 158 10.5 8.6 122 POCKET CREEK 9360 10.0 -M * 10.2 -M * SNIDER BASIN 8060 17.0 9.3 183 16.8 11.3 149 SPRING CREEK DIVIDE 9000 28.8 17.8 162 27.3 18.9 144 TRIPLE PEAK 8500 27.9 16.4 170 29.4 19.8 148 ----- ----- Basin Index (%) 159 133 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 13.4 8.9 151 11.7 9.0 130 HEWINTA 9519 7.4 7.6 97 10.6 10.5 101 HICKERSON PARK 9145 5.8 5.6 104 6.9 7.4 93 HOLE-IN-ROCK 9150 5.3 5.4 98 7.0 6.9 101 INDIAN CREEK 9425 25.3 18.2 139 21.3 17.4 122 KELLEY R.S. 8180 15.3 11.6 132 17.0 14.3 119 SPIRIT LK 10235 6.7 -M * 10.1 -M * STEEL CREEK PARK 10200 14.4 11.1 130 12.4 12.0 103 ----- ----- Basin Index (%) 127 112 UPPER BEAR RIVER BEAR RIVER RS 8777 7.0 -M * 9.2 -M * BUG LAKE 7950 17.3 14.3 121 15.4 15.2 101 BURTS MILLER RANCH 8000 5.3 -M * 5.3 -M * CHALK CREEK #1 8993 16.4 17.7 93 16.8 19.0 88 HAYDEN FORK 9212 11.7 11.6 101 15.6 16.0 98 KELLEY R.S. 8180 15.3 11.6 132 17.0 14.3 119 LILY LAKE 9156 10.3 9.9 104 11.7 12.9 91 MONTE CRISTO 8960 20.0 20.0 100 18.7 20.0 94 SALT RIVER SUMMIT 7760 14.6 10.3 142 15.8 13.2 120 ----- ----- Basin Index (%) 111 100 ----------------------------------------------------------------------------- -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.