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: JANUARY 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 10.5 10.0 105 11.9 12.6 94 BLACK BEAR 8170 20.3 21.8 93 19.6 22.4 88 BLIND BULL SUM 8650 14.2 12.7 112 10.5 11.7 90 COTTONWOOD CREEK 7670 12.4 11.2 111 14.2 14.4 99 EAST RIM DIVIDE 7930 7.0 6.1 115 6.2 7.0 89 GRAND TARGHEE 9260 24.3 21.5 113 17.9 18.5 97 GRANITE CREEK 6770 7.8 9.2 85 9.1 12.2 75 GRASSY LAKE 7265 17.0 17.5 97 18.5 21.5 86 GROS VENTRE SUMMIT 8750 7.5 7.7 97 6.7 7.5 89 GUNSIGHT PASS 9820 8.7 7.7 113 8.5 8.1 105 LEWIS LAKE DIVIDE 7850 14.2 17.4 82 17.0 21.0 81 PHILLIPS BENCH 8200 12.7 15.6 81 13.7 16.4 84 SALT RIVER SUMMIT 7760 7.1 6.9 103 9.0 9.7 93 SNAKE RIVER STATION 6920 8.9 9.4 95 11.5 13.9 83 SPRING CREEK DIVIDE 9000 13.6 12.6 108 13.6 14.0 97 THUMB DIVIDE 7980 7.3 8.4 87 7.8 11.0 71 TOGWOTEE PASS 9580 14.8 13.2 112 14.4 14.5 99 TWO OCEAN PLATEAU 9240 18.0 15.8 114 14.5 15.8 92 WILLOW CREEK 8380 15.5 15.2 102 18.7 19.6 95 YOUNTS PEAK 8350 -M 8.8 * -M 9.6 * ----- ----- Basin Index (%) 101 90 MADISON-GALLATIN BLACK BEAR 8170 20.3 21.8 93 19.6 22.4 88 CANYON 7870 7.2 7.5 96 8.7 9.7 90 MADISON PLATEAU 7750 11.2 13.2 85 12.2 15.7 78 WEST YELLOWSTONE 6700 6.2 6.6 94 7.4 8.7 85 WHISKEY CREEK 6800 8.0 8.8 91 10.1 12.1 83 ----- ----- Basin Index (%) 91 85 YELLOWSTONE BEARTOOTH LAKE 9360 14.0 12.8 109 12.6 11.6 109 BURNT MTN 5880 5.0 2.3 217 10.6 7.5 141 CANYON 7870 7.2 7.5 96 8.7 9.7 90 COLE CREEK 7850 11.4 7.5 152 8.0 7.2 111 EVENING STAR 9200 19.7 14.4 137 20.2 16.4 123 FISHER CREEK 9100 21.2 19.2 110 18.7 18.8 99 NORTHEAST ENTRANCE 7350 6.4 5.7 112 7.1 7.6 93 PARKER PEAK 9400 15.9 12.0 132 14.7 10.5 140 SYLVAN LAKE 8420 12.5 11.6 108 14.7 13.6 108 THUMB DIVIDE 7980 7.3 8.4 87 7.8 11.0 71 TWO OCEAN PLATEAU 9240 18.0 15.8 114 14.5 15.8 92 WHITE MILL 8700 15.7 13.4 117 13.4 14.0 96 WOLVERINE 7650 8.3 6.3 132 7.1 7.6 93 ----- ----- Basin Index (%) 119 104 WIND RIVER BURROUGHS CREEK 8750 -M 7.6 * -M 9.6 * CASTLE CREEK 8400 3.8 -M * 5.6 -M * COLD SPRINGS 9630 5.4 4.2 129 7.0 5.8 121 DEER PARK 9700 5.2 7.9 66 7.6 11.4 67 HOBBS PARK 10100 7.4 7.5 99 6.7 7.2 93 KIRWIN 9550 8.0 5.3 151 7.3 6.8 107 LITTLE WARM 9370 6.7 5.8 116 8.1 7.5 108 OWL CREEK 8975 3.9 3.0 130 3.9 3.3 118 SOUTH PASS 9040 6.4 8.1 79 6.5 10.1 64 ST. LAWRENCE ALT 8620 2.7 3.7 73 5.5 5.0 110 TOGWOTEE PASS 9580 14.8 13.2 112 14.4 14.5 99 TOWNSEND CREEK 8700 3.6 4.6 78 4.8 6.7 72 ----- ----- Basin Index (%) 101 92 BIGHORN BASIN BALD MTN. 9380 14.2 10.1 141 11.1 9.8 113 BEAR TRAP MEADOW 8200 5.9 3.1 190 6.4 4.9 131 BONE SPRINGS DIV 9350 11.0 9.1 121 8.4 8.8 95 GRAVE SPRINGS 8550 7.1 4.6 154 7.7 6.0 128 KIRWIN 9550 8.0 5.3 151 7.3 6.8 107 MARQUETTE 8760 4.8 -M * 6.8 -M * MIDDLE POWDER 7760 9.8 6.1 161 8.6 6.9 125 OWL CREEK 8975 3.9 3.0 130 3.9 3.3 118 POWDER RIVER PASS 9480 8.3 5.9 141 8.8 7.2 122 SHELL CREEK 9580 9.7 8.6 113 8.3 8.0 104 TIMBER CREEK 7950 3.4 2.8 121 5.0 4.3 116 ----- ----- Basin Index (%) 139 114 SHOSHONE RIVER BLACKWATER 9780 15.7 13.1 120 13.4 12.2 110 EVENING STAR 9200 19.7 14.4 137 20.2 16.4 123 MARQUETTE 8760 4.8 -M * 6.8 -M * SYLVAN ROAD 7120 7.8 7.2 108 11.3 11.0 103 YOUNTS PEAK 8350 -M 8.8 * -M 9.6 * ----- ----- Basin Index (%) 124 113 POWDER RIVER BEAR TRAP MEADOW 8200 5.9 3.1 190 6.4 4.9 131 CLOUD PEAK RESERVOIR 9860 10.8 7.6 142 9.7 7.4 131 GRAVE SPRINGS 8550 7.1 4.6 154 7.7 6.0 128 HANSEN SAWMILL 8360 4.8 3.7 130 6.6 4.7 140 MIDDLE POWDER 7760 9.8 6.1 161 8.6 6.9 125 POWDER RIVER PASS 9480 8.3 5.9 141 8.8 7.2 122 SOLDIER PARK 8720 4.9 -M * 6.2 -M * ----- ----- Basin Index (%) 151 129 TONGUE RIVER BIG GOOSE 7990 5.4 4.4 123 7.5 6.0 125 BONE SPRINGS DIV 9350 11.0 9.1 121 8.4 8.8 95 BURGESS JUNCTION 7880 7.7 6.2 124 8.9 7.0 127 DOME LAKE 8880 6.1 6.4 95 6.4 7.8 82 LITTLE GOOSE 8870 6.1 -M * 8.7 -M * SUCKER CREEK 8880 9.4 6.6 142 10.4 8.0 130 TIE CREEK 6870 3.8 3.1 123 8.5 6.7 127 ----- ----- Basin Index (%) 121 113 BELLE FOURCHE COLE CANYON 5910 3.9 3.0 130 10.3 5.3 194 ----- ----- Basin Index (%) 130 194 CHEYENNE RIVER BASIN BLIND PARK 6890 6.2 4.1 151 12.6 7.2 175 NORTH RAPID CREEK 6130 5.9 3.8 155 11.4 5.8 197 ----- ----- Basin Index (%) 153 185 UPPER N. PLATTE ARAPAHO RIDGE 10960 13.5 11.3 119 13.5 13.0 104 BLACKHALL MTN 9820 18.5 -M * 20.2 -M * COLUMBINE 9160 16.6 13.0 128 18.3 14.7 124 DIVIDE PEAK 8880 10.5 11.1 95 14.1 12.5 113 JOE WRIGHT 10120 9.3 12.0 78 16.4 14.7 112 LAPRELE CREEK 8375 4.2 5.2 81 6.1 7.0 87 MED BOW 10500 15.5 -M * 22.1 -M * NORTH FRENCH CREEK 10130 18.1 14.5 125 19.3 15.3 126 NEVER SUMMER 10280 11.7 11.0 106 10.3 -M * OLD BATTLE 10000 17.3 16.5 105 20.1 20.4 99 RAWAH 9020 7.5 5.7 132 10.2 8.6 119 SAGE CREEK BASIN 7850 5.9 7.5 79 7.7 8.8 88 SAND LAKE 10050 16.7 15.0 111 16.7 13.8 121 SOUTH BRUSH CREEK 8440 7.0 6.5 108 9.6 8.7 110 TOWER 10500 25.8 24.2 107 27.0 23.2 116 WEBBER SPRINGS 9250 12.4 12.3 101 15.0 15.5 97 WILLOW CREEK PASS 9540 7.4 6.6 112 8.3 7.6 109 ZIRKEL 9340 18.0 16.3 110 20.1 16.9 119 ----- ----- Basin Index (%) 107 111 SWEETWATER DEER PARK 9700 5.2 7.9 66 7.6 11.4 67 LARSEN CREEK 9000 3.6 -M * 6.1 -M * SOUTH PASS 9040 6.4 8.1 79 6.5 10.1 64 ----- ----- Basin Index (%) 72 66 LOWER N. PLATTE CASPER MTN. 7900 -M 6.9 * -M 8.4 * LAPRELE CREEK 8375 4.2 5.2 81 6.1 7.0 87 RENO HILL 8400 10.4 7.0 149 12.6 8.3 152 WINDY PEAK 7900 3.5 3.8 92 6.1 5.9 103 ----- ----- Basin Index (%) 113 117 LARAMIE RIVER BROOKLYN LAKE 10240 14.0 11.2 125 14.6 11.7 125 CINNABAR PARK 9574 12.5 11.9 105 15.5 14.5 107 CROW CREEK 8330 4.5 5.4 83 6.5 6.1 107 DEADMAN HILL 10220 11.9 8.7 137 12.2 9.4 130 RAWAH 9020 7.5 5.7 132 10.2 8.6 119 ROACH 9700 9.2 9.2 100 11.7 10.8 108 ----- ----- Basin Index (%) 114 116 S. PLATTE BLACK MOUNTAIN 8920 6.5 -M * 8.2 -M * CROW CREEK 8330 4.5 5.4 83 6.5 6.1 107 DEADMAN HILL 10220 11.9 8.7 137 12.2 9.4 130 ----- ----- Basin Index (%) 116 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.6 6.1 108 10.7 8.9 120 DIVIDE PEAK 8880 10.5 11.1 95 14.1 12.5 113 ELK RIVER 8700 11.5 9.8 117 13.7 11.6 118 LITTLE SNAKE RIVER 8915 15.1 12.9 117 20.6 18.7 110 OLD BATTLE 10000 17.3 16.5 105 20.1 20.4 99 SAGE CREEK BASIN 7850 5.9 7.5 79 7.7 8.8 88 SANDSTONE RS 8150 6.9 7.2 96 11.3 10.9 104 WHISKEY PARK 8950 21.0 14.7 143 23.3 16.0 146 ----- ----- Basin Index (%) 110 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.8 7.1 82 5.5 7.7 71 BLIND BULL SUM 8650 14.2 12.7 112 10.5 11.7 90 EAST RIM DIVIDE 7930 7.0 6.1 115 6.2 7.0 89 ELKHART PARK G.S. 9400 7.3 6.9 106 6.9 7.8 88 GROS VENTRE SUMMIT 8750 7.5 7.7 97 6.7 7.5 89 GUNSIGHT PASS 9820 8.7 7.7 113 8.5 8.1 105 KENDALL R.S. 7740 7.2 6.8 106 8.2 8.4 98 LOOMIS PARK 8240 8.6 8.5 101 9.9 10.2 97 NEW FORK LAKE 8340 5.7 6.2 92 5.1 6.4 80 POCKET CREEK 9360 4.7 -M * 5.2 -M * SNIDER BASIN 8060 7.6 6.6 115 7.9 8.4 94 SPRING CREEK DIVIDE 9000 13.6 12.6 108 13.6 14.0 97 TRIPLE PEAK 8500 13.1 11.7 112 15.1 14.4 105 ----- ----- Basin Index (%) 106 93 LOWER GREEN RIVER BLACKS FORK JCT 8870 3.4 -M * 6.7 -M * BUCK PASTURE 9700 6.4 -M * 8.7 -M * EF BLACKS FORK GS 9360 3.2 -M * 6.0 -M * HAMS FORK 7840 5.3 6.3 84 5.9 6.7 88 HEWINTA 9519 3.8 5.1 75 7.2 7.9 91 HICKERSON PARK 9145 4.5 3.3 136 6.0 5.7 105 HOLE-IN-ROCK 9150 3.6 3.7 97 5.6 5.4 104 INDIAN CREEK 9425 10.9 13.3 82 10.2 12.7 80 KELLEY R.S. 8180 7.2 7.9 91 8.9 10.5 85 SPIRIT LK 10235 5.6 -M * 8.5 -M * STEEL CREEK PARK 10200 7.2 7.6 95 8.8 9.0 98 ----- ----- Basin Index (%) 90 91 UPPER BEAR RIVER BEAR RIVER RS 8777 4.0 -M * 6.6 -M * BUG LAKE 7950 -M 9.1 * -M 11.3 * BURTS MILLER RANCH 8000 3.3 -M * 3.7 -M * CHALK CREEK #1 8993 10.7 12.0 89 11.6 14.2 82 HAYDEN FORK 9212 6.6 7.7 86 10.1 12.0 84 KELLEY R.S. 8180 7.2 7.9 91 8.9 10.5 85 LILY LAKE 9156 6.8 6.7 101 8.5 9.8 87 MONTE CRISTO 8960 11.1 14.0 79 11.2 14.8 76 SALT RIVER SUMMIT 7760 7.1 6.9 103 9.0 9.7 93 ----- ----- Basin Index (%) 90 84 ----------------------------------------------------------------------------- -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.