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 FRIDAY: FEBRUARY 21 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 17.1 13.0 132 17.7 16.4 108 BLACK BEAR 8170 27.7 28.0 99 26.3 29.1 90 BLIND BULL SUM 8650 25.7 17.1 150 17.5 15.2 115 COTTONWOOD CREEK 7670 23.2 15.7 148 24.4 18.5 132 EAST RIM DIVIDE 7930 12.8 7.5 171 11.3 9.0 126 GRAND TARGHEE 9260 33.7 27.9 121 25.2 23.7 106 GRANITE CREEK 6770 17.0 13.0 131 17.2 15.7 110 GRASSY LAKE 7265 27.0 24.8 109 26.1 28.1 93 GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.7 9.5 113 GUNSIGHT PASS 9820 14.4 10.0 144 13.2 10.2 129 LEWIS LAKE DIVIDE 7850 25.5 24.4 105 25.9 27.4 95 PHILLIPS BENCH 8200 23.8 18.7 127 24.0 21.5 112 SALT RIVER SUMMIT 7760 13.4 10.0 134 14.6 12.8 114 SNAKE RIVER STATION 6920 14.8 13.6 109 17.3 17.8 97 SPRING CREEK DIVIDE 9000 26.1 17.2 152 24.9 18.3 136 THUMB DIVIDE 7980 11.9 11.2 106 11.4 13.9 82 TOGWOTEE PASS 9580 23.4 16.9 138 22.9 18.4 124 TWO OCEAN PLATEAU 9240 28.0 20.4 137 20.0 20.5 98 WILLOW CREEK 8380 28.6 20.7 138 30.1 25.2 119 YOUNTS PEAK 8350 -M 11.2 * -M 12.1 * ----- ----- Basin Index (%) 127 108 MADISON-GALLATIN BLACK BEAR 8170 27.7 28.0 99 26.3 29.1 90 CANYON 7870 10.6 9.9 107 12.1 12.5 97 MADISON PLATEAU 7750 15.9 16.7 95 16.4 20.0 82 WEST YELLOWSTONE 6700 9.6 8.2 117 10.7 11.1 96 WHISKEY CREEK 6800 11.7 11.3 104 13.6 15.4 88 ----- ----- Basin Index (%) 102 90 YELLOWSTONE BEARTOOTH LAKE 9360 20.6 15.8 130 18.9 15.0 126 BURNT MTN 5880 6.6 3.8 174 13.4 9.0 149 CANYON 7870 10.6 9.9 107 12.1 12.5 97 COLE CREEK 7850 13.6 9.0 151 9.8 8.6 114 EVENING STAR 9200 27.6 18.4 150 27.4 21.0 130 FISHER CREEK 9100 30.4 24.6 124 26.0 24.2 107 NORTHEAST ENTRANCE 7350 10.4 7.6 137 10.6 9.5 112 PARKER PEAK 9400 21.6 14.9 145 18.9 13.3 142 SYLVAN LAKE 8420 17.4 15.0 116 19.8 17.1 116 THUMB DIVIDE 7980 11.9 11.2 106 11.4 13.9 82 TWO OCEAN PLATEAU 9240 28.0 20.4 137 20.0 20.5 98 WHITE MILL 8700 22.4 17.2 130 19.2 18.1 106 WOLVERINE 7650 13.0 8.2 159 11.4 9.5 120 ----- ----- Basin Index (%) 133 114 WIND RIVER BURROUGHS CREEK 8750 -M 10.2 * -M 12.1 * CASTLE CREEK 8400 8.1 -M * 9.7 -M * COLD SPRINGS 9630 8.5 5.3 160 10.6 7.1 149 DEER PARK 9700 8.6 10.2 84 12.5 14.3 87 HOBBS PARK 10100 10.5 9.0 117 9.4 9.0 104 KIRWIN 9550 13.7 6.4 214 11.8 8.3 142 LITTLE WARM 9370 10.5 7.7 136 12.4 9.3 133 OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127 SOUTH PASS 9040 11.0 10.6 104 10.2 12.8 80 ST. LAWRENCE ALT 8620 3.5 4.9 71 6.5 6.1 107 TOGWOTEE PASS 9580 23.4 16.9 138 22.9 18.4 124 TOWNSEND CREEK 8700 4.9 6.1 80 6.0 8.2 73 ----- ----- Basin Index (%) 124 110 BIGHORN BASIN BALD MTN. 9380 18.0 13.8 130 13.5 12.3 110 BEAR TRAP MEADOW 8200 7.6 4.0 190 7.8 5.8 134 BONE SPRINGS DIV 9350 14.8 11.2 132 11.1 11.0 101 GRAVE SPRINGS 8550 8.7 6.0 145 9.1 7.4 123 KIRWIN 9550 13.7 6.4 214 11.8 8.3 142 MARQUETTE 8760 7.9 -M * 9.0 -M * MIDDLE POWDER 7760 11.6 7.4 157 9.9 8.3 119 OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127 POWDER RIVER PASS 9480 11.4 7.5 152 11.8 9.0 131 SHELL CREEK 9580 13.3 10.5 127 11.2 10.0 112 TIMBER CREEK 7950 4.7 3.1 152 6.4 4.9 131 ----- ----- Basin Index (%) 148 121 SHOSHONE RIVER BLACKWATER 9780 23.3 16.3 143 20.3 15.3 133 EVENING STAR 9200 27.6 18.4 150 27.4 21.0 130 MARQUETTE 8760 7.9 -M * 9.0 -M * SYLVAN ROAD 7120 11.6 8.8 132 15.8 13.4 118 YOUNTS PEAK 8350 -M 11.2 * -M 12.1 * ----- ----- Basin Index (%) 144 128 POWDER RIVER BEAR TRAP MEADOW 8200 7.6 4.0 190 7.8 5.8 134 CLOUD PEAK RESERVOIR 9860 14.1 9.9 142 12.2 9.0 136 GRAVE SPRINGS 8550 8.7 6.0 145 9.1 7.4 123 HANSEN SAWMILL 8360 6.3 4.4 143 8.4 5.7 147 MIDDLE POWDER 7760 11.6 7.4 157 9.9 8.3 119 POWDER RIVER PASS 9480 11.4 7.5 152 11.8 9.0 131 SOLDIER PARK 8720 7.9 -M * 7.7 -M * ----- ----- Basin Index (%) 152 131 TONGUE RIVER BIG GOOSE 7990 7.1 5.9 120 9.1 7.5 121 BONE SPRINGS DIV 9350 14.8 11.2 132 11.1 11.0 101 BURGESS JUNCTION 7880 9.8 7.7 127 10.7 8.6 124 DOME LAKE 8880 9.5 8.1 117 8.7 9.5 92 LITTLE GOOSE 8870 8.0 -M * 10.7 -M * SUCKER CREEK 8880 11.7 8.3 141 13.0 10.0 130 TIE CREEK 6870 5.4 4.1 132 10.2 7.9 129 ----- ----- Basin Index (%) 129 115 BELLE FOURCHE COLE CANYON 5910 5.4 4.7 115 11.5 6.8 169 ----- ----- Basin Index (%) 115 169 CHEYENNE RIVER BASIN BLIND PARK 6890 7.8 5.9 132 14.4 8.9 162 NORTH RAPID CREEK 6130 7.5 5.6 134 13.1 7.2 182 ----- ----- Basin Index (%) 133 171 UPPER N. PLATTE ARAPAHO RIDGE 10960 20.7 15.5 134 19.9 16.7 119 BLACKHALL MTN 9820 27.1 -M * 26.9 -M * COLUMBINE 9160 27.4 18.4 149 -M 19.3 * DIVIDE PEAK 8880 14.1 14.8 95 17.5 16.1 109 JOE WRIGHT 10120 15.2 15.4 99 24.6 18.8 131 LAPRELE CREEK 8375 5.5 7.1 77 7.2 8.9 81 MED BOW 10500 15.6 -M * 28.3 -M * NORTH FRENCH CREEK 10130 -M 19.7 * -M 19.9 * NEVER SUMMER 10280 18.4 14.8 124 13.9 -M * OLD BATTLE 10000 25.1 22.9 110 27.8 26.7 104 RAWAH 9020 10.8 7.8 138 13.4 10.2 131 SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88 SAND LAKE 10050 23.4 19.6 119 22.7 17.9 127 SOUTH BRUSH CREEK 8440 9.1 9.3 98 11.2 11.0 102 TOWER 10500 40.7 34.4 118 29.9 30.2 99 WEBBER SPRINGS 9250 19.2 17.6 109 20.7 20.1 103 WILLOW CREEK PASS 9540 10.7 9.0 119 11.4 9.8 116 ZIRKEL 9340 30.9 21.9 141 26.1 22.3 117 ----- ----- Basin Index (%) 117 110 SWEETWATER DEER PARK 9700 8.6 10.2 84 12.5 14.3 87 LARSEN CREEK 9000 8.9 8.9 100 11.0 -M * SOUTH PASS 9040 11.0 10.6 104 10.2 12.8 80 ----- ----- Basin Index (%) 96 84 LOWER N. PLATTE CASPER MTN. 7900 -M 9.5 * -M 10.5 * LAPRELE CREEK 8375 5.5 7.1 77 7.2 8.9 81 RENO HILL 8400 11.9 9.3 128 13.7 10.5 130 WINDY PEAK 7900 5.1 5.4 94 7.7 7.4 104 ----- ----- Basin Index (%) 103 107 LARAMIE RIVER BROOKLYN LAKE 10240 22.6 14.4 157 21.4 15.2 141 CINNABAR PARK 9574 17.3 16.2 107 20.5 19.0 108 CROW CREEK 8330 6.4 6.6 97 8.3 7.5 111 DEADMAN HILL 10220 18.0 11.9 151 16.9 12.0 141 RAWAH 9020 10.8 7.8 138 13.4 10.2 131 ROACH 9700 -M 12.0 * -M 13.9 * ----- ----- Basin Index (%) 132 126 S. PLATTE BLACK MOUNTAIN 8920 8.8 -M * 10.9 -M * CROW CREEK 8330 6.4 6.6 97 8.3 7.5 111 DEADMAN HILL 10220 18.0 11.9 151 16.9 12.0 141 ----- ----- Basin Index (%) 132 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.0 9.0 100 13.3 11.6 115 DIVIDE PEAK 8880 14.1 14.8 95 17.5 16.1 109 ELK RIVER 8700 16.2 14.2 114 17.1 15.2 112 LITTLE SNAKE RIVER 8915 23.4 18.9 124 27.9 24.2 115 OLD BATTLE 10000 25.1 22.9 110 27.8 26.7 104 SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88 SANDSTONE RS 8150 9.9 10.2 97 14.3 14.4 99 WHISKEY PARK 8950 30.8 20.0 154 30.8 21.3 145 ----- ----- Basin Index (%) 114 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.9 9.4 116 10.2 9.8 104 BLIND BULL SUM 8650 25.7 17.1 150 17.5 15.2 115 EAST RIM DIVIDE 7930 12.8 7.5 171 11.3 9.0 126 ELKHART PARK G.S. 9400 13.0 8.9 146 11.9 9.9 120 GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.7 9.5 113 GUNSIGHT PASS 9820 14.4 10.0 144 13.2 10.2 129 KENDALL R.S. 7740 15.0 9.3 161 15.2 11.0 138 LOOMIS PARK 8240 17.0 11.0 155 17.8 13.2 135 NEW FORK LAKE 8340 11.3 7.7 147 9.3 8.2 113 POCKET CREEK 9360 9.3 -M * 9.7 -M * SNIDER BASIN 8060 15.5 9.1 170 15.2 10.9 139 SPRING CREEK DIVIDE 9000 26.1 17.2 152 24.9 18.3 136 TRIPLE PEAK 8500 25.3 16.0 158 26.9 19.0 142 ----- ----- Basin Index (%) 150 128 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.2 -M * 10.1 -M * BUCK PASTURE 9700 10.4 -M * 12.0 -M * EF BLACKS FORK GS 9360 6.5 -M * 8.1 -M * HAMS FORK 7840 12.2 8.7 140 10.8 8.7 124 HEWINTA 9519 7.0 7.3 96 10.4 10.2 102 HICKERSON PARK 9145 5.6 5.3 106 6.8 7.2 94 HOLE-IN-ROCK 9150 5.2 5.1 102 6.9 6.7 103 INDIAN CREEK 9425 23.0 17.4 132 19.4 16.8 115 KELLEY R.S. 8180 14.2 11.0 129 15.7 13.8 114 SPIRIT LK 10235 6.5 -M * 10.0 -M * STEEL CREEK PARK 10200 14.1 10.7 132 12.2 11.7 104 ----- ----- Basin Index (%) 124 109 UPPER BEAR RIVER BEAR RIVER RS 8777 6.8 -M * 9.1 -M * BUG LAKE 7950 16.8 13.8 122 15.2 14.7 103 BURTS MILLER RANCH 8000 5.5 -M * 5.3 -M * CHALK CREEK #1 8993 16.3 17.0 96 16.7 18.6 90 HAYDEN FORK 9212 11.4 11.4 100 15.2 15.5 98 KELLEY R.S. 8180 14.2 11.0 129 15.7 13.8 114 LILY LAKE 9156 10.1 9.6 105 11.5 12.6 91 MONTE CRISTO 8960 19.6 19.6 100 18.3 19.5 94 SALT RIVER SUMMIT 7760 13.4 10.0 134 14.6 12.8 114 ----- ----- 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.