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 SUNDAY: FEBRUARY 23 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 17.3 13.1 132 18.0 16.7 108 BLACK BEAR 8170 27.7 28.3 98 26.3 29.6 89 BLIND BULL SUM 8650 26.6 17.3 154 17.7 15.4 115 COTTONWOOD CREEK 7670 24.4 16.0 152 24.7 18.8 131 EAST RIM DIVIDE 7930 13.3 7.6 175 11.8 9.2 128 GRAND TARGHEE 9260 34.2 28.3 121 25.6 23.9 107 GRANITE CREEK 6770 17.6 13.1 134 17.4 15.9 109 GRASSY LAKE 7265 27.2 25.1 108 26.1 28.6 91 GROS VENTRE SUMMIT 8750 11.8 9.4 126 10.9 9.6 114 GUNSIGHT PASS 9820 15.0 10.1 149 13.4 10.4 129 LEWIS LAKE DIVIDE 7850 25.7 24.8 104 26.1 27.8 94 PHILLIPS BENCH 8200 24.7 19.0 130 24.8 21.9 113 SALT RIVER SUMMIT 7760 14.1 10.2 138 15.3 13.0 118 SNAKE RIVER STATION 6920 15.0 13.7 109 18.0 18.0 100 SPRING CREEK DIVIDE 9000 28.1 17.5 161 26.5 18.6 142 THUMB DIVIDE 7980 11.9 11.4 104 11.4 14.1 81 TOGWOTEE PASS 9580 24.3 17.1 142 23.7 18.7 127 TWO OCEAN PLATEAU 9240 28.5 20.8 137 20.0 20.9 96 WILLOW CREEK 8380 29.5 21.3 138 30.7 25.8 119 YOUNTS PEAK 8350 -M 11.3 * -M 12.2 * ----- ----- Basin Index (%) 129 109 MADISON-GALLATIN BLACK BEAR 8170 27.7 28.3 98 26.3 29.6 89 CANYON 7870 10.7 10.1 106 12.2 12.6 97 MADISON PLATEAU 7750 16.0 17.2 93 16.4 20.3 81 WEST YELLOWSTONE 6700 9.5 8.4 113 10.7 11.2 96 WHISKEY CREEK 6800 11.6 11.5 101 13.7 15.7 87 ----- ----- Basin Index (%) 100 89 YELLOWSTONE BEARTOOTH LAKE 9360 21.1 16.0 132 19.4 15.1 128 BURNT MTN 5880 6.9 3.9 177 13.5 9.0 150 CANYON 7870 10.7 10.1 106 12.2 12.6 97 COLE CREEK 7850 14.3 9.1 157 10.3 8.7 118 EVENING STAR 9200 27.9 18.6 150 27.8 21.4 130 FISHER CREEK 9100 30.7 24.9 123 26.5 24.6 108 NORTHEAST ENTRANCE 7350 10.6 7.6 139 10.8 9.6 112 PARKER PEAK 9400 22.0 15.2 145 19.1 13.5 141 SYLVAN LAKE 8420 17.5 15.3 114 19.9 17.3 115 THUMB DIVIDE 7980 11.9 11.4 104 11.4 14.1 81 TWO OCEAN PLATEAU 9240 28.5 20.8 137 20.0 20.9 96 WHITE MILL 8700 22.8 17.7 129 19.5 18.4 106 WOLVERINE 7650 13.2 8.4 157 11.3 9.6 118 ----- ----- Basin Index (%) 133 114 WIND RIVER BURROUGHS CREEK 8750 -M 10.3 * -M 12.2 * CASTLE CREEK 8400 8.6 -M * 10.1 -M * COLD SPRINGS 9630 8.6 5.4 159 10.9 7.2 151 DEER PARK 9700 -M 10.4 * 12.9 14.5 89 HOBBS PARK 10100 10.8 9.1 119 9.4 9.0 104 KIRWIN 9550 14.2 6.6 215 12.0 8.4 143 LITTLE WARM 9370 11.1 7.7 144 13.1 9.4 139 OWL CREEK 8975 5.4 3.7 146 5.4 4.1 132 SOUTH PASS 9040 11.4 10.8 106 10.4 12.9 81 ST. LAWRENCE ALT 8620 3.0 5.0 60 5.9 6.2 95 TOGWOTEE PASS 9580 24.3 17.1 142 23.7 18.7 127 TOWNSEND CREEK 8700 4.9 6.1 80 5.6 8.3 67 ----- ----- Basin Index (%) 131 111 BIGHORN BASIN BALD MTN. 9380 18.7 14.0 134 13.9 12.5 111 BEAR TRAP MEADOW 8200 7.9 4.1 193 8.0 5.9 136 BONE SPRINGS DIV 9350 15.5 11.3 137 11.5 11.2 103 GRAVE SPRINGS 8550 8.8 6.2 142 9.2 7.5 123 KIRWIN 9550 14.2 6.6 215 12.0 8.4 143 MARQUETTE 8760 8.3 -M * 9.1 -M * MIDDLE POWDER 7760 12.0 7.5 160 9.9 8.3 119 OWL CREEK 8975 5.4 3.7 146 5.4 4.1 132 POWDER RIVER PASS 9480 12.0 7.6 158 12.5 9.2 136 SHELL CREEK 9580 14.0 10.8 130 11.8 10.1 117 TIMBER CREEK 7950 4.7 3.1 152 6.5 5.0 130 ----- ----- Basin Index (%) 151 123 SHOSHONE RIVER BLACKWATER 9780 23.6 16.6 142 20.4 15.5 132 EVENING STAR 9200 27.9 18.6 150 27.8 21.4 130 MARQUETTE 8760 8.3 -M * 9.1 -M * SYLVAN ROAD 7120 11.8 8.9 133 15.9 13.5 118 YOUNTS PEAK 8350 -M 11.3 * -M 12.2 * ----- ----- Basin Index (%) 144 127 POWDER RIVER BEAR TRAP MEADOW 8200 7.9 4.1 193 8.0 5.9 136 CLOUD PEAK RESERVOIR 9860 14.5 10.0 145 12.3 9.2 134 GRAVE SPRINGS 8550 8.8 6.2 142 9.2 7.5 123 HANSEN SAWMILL 8360 6.6 4.4 150 8.7 5.8 150 MIDDLE POWDER 7760 12.0 7.5 160 9.9 8.3 119 POWDER RIVER PASS 9480 12.0 7.6 158 12.5 9.2 136 SOLDIER PARK 8720 8.0 -M * 7.9 -M * ----- ----- Basin Index (%) 155 132 TONGUE RIVER BIG GOOSE 7990 7.2 6.0 120 9.2 7.6 121 BONE SPRINGS DIV 9350 15.5 11.3 137 11.5 11.2 103 BURGESS JUNCTION 7880 10.2 7.8 131 11.0 8.6 128 DOME LAKE 8880 9.8 8.2 120 9.1 9.6 95 LITTLE GOOSE 8870 8.4 -M * 10.8 -M * SUCKER CREEK 8880 12.1 8.5 142 13.4 10.0 134 TIE CREEK 6870 5.6 4.2 133 10.3 8.0 129 ----- ----- Basin Index (%) 131 117 BELLE FOURCHE COLE CANYON 5910 5.3 4.8 110 11.5 6.8 169 ----- ----- Basin Index (%) 110 169 CHEYENNE RIVER BASIN BLIND PARK 6890 7.7 6.0 128 14.6 9.0 162 NORTH RAPID CREEK 6130 7.4 5.7 130 12.9 7.2 179 ----- ----- Basin Index (%) 129 170 UPPER N. PLATTE ARAPAHO RIDGE 10960 21.4 15.7 136 20.7 16.9 122 BLACKHALL MTN 9820 28.3 -M * 27.1 -M * COLUMBINE 9160 28.1 18.8 149 27.7 19.5 142 DIVIDE PEAK 8880 14.2 15.1 94 17.5 16.3 107 JOE WRIGHT 10120 15.4 15.6 99 24.3 19.1 127 LAPRELE CREEK 8375 5.5 7.3 75 7.3 9.0 81 MED BOW 10500 15.1 -M * 28.2 -M * NORTH FRENCH CREEK 10130 -M 20.0 * -M 20.2 * NEVER SUMMER 10280 18.9 15.2 124 14.2 -M * OLD BATTLE 10000 25.3 23.2 109 28.1 27.0 104 RAWAH 9020 11.0 8.0 138 13.2 10.3 128 SAGE CREEK BASIN 7850 8.8 10.4 85 9.9 11.4 87 SAND LAKE 10050 24.0 20.1 119 23.0 18.2 126 SOUTH BRUSH CREEK 8440 9.1 9.5 96 11.3 11.2 101 TOWER 10500 41.2 35.0 118 30.5 30.6 100 WEBBER SPRINGS 9250 19.6 17.9 109 20.7 20.4 101 WILLOW CREEK PASS 9540 10.9 9.1 120 11.5 9.9 116 ZIRKEL 9340 32.6 22.3 146 26.2 22.5 116 ----- ----- Basin Index (%) 118 112 SWEETWATER DEER PARK 9700 -M 10.4 * 12.9 14.5 89 LARSEN CREEK 9000 9.6 9.0 107 11.6 -M * SOUTH PASS 9040 11.4 10.8 106 10.4 12.9 81 ----- ----- Basin Index (%) 106 85 LOWER N. PLATTE CASPER MTN. 7900 -M 9.6 * -M 10.6 * LAPRELE CREEK 8375 5.5 7.3 75 7.3 9.0 81 RENO HILL 8400 11.9 9.4 127 13.7 10.6 129 WINDY PEAK 7900 5.3 5.5 96 8.0 7.5 107 ----- ----- Basin Index (%) 102 107 LARAMIE RIVER BROOKLYN LAKE 10240 23.7 14.5 163 21.6 15.4 140 CINNABAR PARK 9574 17.9 16.4 109 20.5 19.1 107 CROW CREEK 8330 6.7 6.6 102 8.9 7.6 117 DEADMAN HILL 10220 19.0 12.1 157 17.0 12.2 139 RAWAH 9020 11.0 8.0 138 13.2 10.3 128 ROACH 9700 -M 12.1 * -M 14.1 * ----- ----- Basin Index (%) 136 126 S. PLATTE BLACK MOUNTAIN 8920 9.1 -M * 10.5 -M * CROW CREEK 8330 6.7 6.6 102 8.9 7.6 117 DEADMAN HILL 10220 19.0 12.1 157 17.0 12.2 139 ----- ----- Basin Index (%) 137 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.9 9.3 96 13.4 11.7 115 DIVIDE PEAK 8880 14.2 15.1 94 17.5 16.3 107 ELK RIVER 8700 16.6 14.5 114 17.2 15.4 112 LITTLE SNAKE RIVER 8915 23.8 19.2 124 28.3 24.3 116 OLD BATTLE 10000 25.3 23.2 109 28.1 27.0 104 SAGE CREEK BASIN 7850 8.8 10.4 85 9.9 11.4 87 SANDSTONE RS 8150 9.9 10.3 96 14.4 14.6 99 WHISKEY PARK 8950 31.3 20.3 154 30.8 21.6 143 ----- ----- Basin Index (%) 113 112 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.5 9.5 121 10.8 10.0 108 BLIND BULL SUM 8650 26.6 17.3 154 17.7 15.4 115 EAST RIM DIVIDE 7930 13.3 7.6 175 11.8 9.2 128 ELKHART PARK G.S. 9400 13.6 9.0 151 12.4 10.0 124 GROS VENTRE SUMMIT 8750 11.8 9.4 126 10.9 9.6 114 GUNSIGHT PASS 9820 15.0 10.1 149 13.4 10.4 129 KENDALL R.S. 7740 16.1 9.5 169 16.4 11.2 146 LOOMIS PARK 8240 17.9 11.3 158 18.6 13.4 139 NEW FORK LAKE 8340 12.1 7.8 155 10.0 8.4 119 POCKET CREEK 9360 9.7 -M * 9.9 -M * SNIDER BASIN 8060 16.7 9.2 182 16.2 11.1 146 SPRING CREEK DIVIDE 9000 28.1 17.5 161 26.5 18.6 142 TRIPLE PEAK 8500 27.1 16.2 167 28.6 19.4 147 ----- ----- Basin Index (%) 156 132 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.3 -M * 10.2 -M * BUCK PASTURE 9700 10.5 -M * 12.0 -M * EF BLACKS FORK GS 9360 6.7 -M * 8.0 -M * HAMS FORK 7840 13.3 8.8 151 11.4 8.8 130 HEWINTA 9519 7.3 7.4 99 10.6 10.4 102 HICKERSON PARK 9145 5.6 5.5 102 6.9 7.3 95 HOLE-IN-ROCK 9150 5.2 5.2 100 7.0 6.8 103 INDIAN CREEK 9425 24.7 17.8 139 20.5 17.1 120 KELLEY R.S. 8180 15.1 11.3 134 16.6 14.0 119 SPIRIT LK 10235 6.6 -M * 10.0 -M * STEEL CREEK PARK 10200 14.3 10.9 131 12.4 11.9 104 ----- ----- Basin Index (%) 128 112 UPPER BEAR RIVER BEAR RIVER RS 8777 6.9 -M * 9.2 -M * BUG LAKE 7950 -M 14.1 * -M 15.0 * BURTS MILLER RANCH 8000 5.4 -M * 5.3 -M * CHALK CREEK #1 8993 16.4 17.3 95 16.8 18.8 89 HAYDEN FORK 9212 11.8 11.5 103 15.6 15.7 99 KELLEY R.S. 8180 15.1 11.3 134 16.6 14.0 119 LILY LAKE 9156 10.3 9.8 105 11.7 12.7 92 MONTE CRISTO 8960 19.9 19.8 101 18.6 19.7 94 SALT RIVER SUMMIT 7760 14.1 10.2 138 15.3 13.0 118 ----- ----- 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.