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: JANUARY 31 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 11.7 10.8 108 12.7 14.0 91 BLACK BEAR 8170 21.4 23.2 92 20.8 24.8 84 BLIND BULL SUM 8650 15.6 13.7 114 11.4 12.8 89 COTTONWOOD CREEK 7670 14.2 12.7 112 16.0 15.8 101 EAST RIM DIVIDE 7930 8.1 6.8 119 7.0 7.7 91 GRAND TARGHEE 9260 26.7 23.5 114 19.5 20.5 95 GRANITE CREEK 6770 9.3 10.4 89 10.4 13.6 76 GRASSY LAKE 7265 18.9 20.0 94 20.3 23.8 85 GROS VENTRE SUMMIT 8750 8.2 8.3 99 7.2 8.2 88 GUNSIGHT PASS 9820 9.5 8.2 116 9.2 8.8 105 LEWIS LAKE DIVIDE 7850 15.8 19.8 80 18.8 23.1 81 PHILLIPS BENCH 8200 14.2 15.9 89 15.1 18.1 83 SALT RIVER SUMMIT 7760 7.6 7.7 99 9.7 10.6 92 SNAKE RIVER STATION 6920 10.1 10.7 94 12.9 15.4 84 SPRING CREEK DIVIDE 9000 15.2 14.3 106 15.2 15.3 99 THUMB DIVIDE 7980 7.7 9.6 80 8.2 12.2 67 TOGWOTEE PASS 9580 16.0 14.9 107 15.8 15.8 100 TWO OCEAN PLATEAU 9240 19.6 17.4 113 16.2 17.2 94 WILLOW CREEK 8380 17.3 17.0 102 20.5 21.5 95 YOUNTS PEAK 8350 -M 9.5 * -M 10.4 * ----- ----- Basin Index (%) 101 89 MADISON-GALLATIN BLACK BEAR 8170 21.4 23.2 92 20.8 24.8 84 CANYON 7870 7.7 8.1 95 9.3 10.7 87 MADISON PLATEAU 7750 12.1 14.0 86 13.0 17.3 75 WEST YELLOWSTONE 6700 7.0 7.0 100 8.1 9.6 84 WHISKEY CREEK 6800 8.6 9.6 90 10.6 13.2 80 ----- ----- Basin Index (%) 92 82 YELLOWSTONE BEARTOOTH LAKE 9360 15.0 13.8 109 13.5 12.8 105 BURNT MTN 5880 5.7 2.4 238 11.8 7.8 151 CANYON 7870 7.7 8.1 95 9.3 10.7 87 COLE CREEK 7850 12.7 8.3 153 8.9 7.6 117 EVENING STAR 9200 20.9 16.2 129 21.5 17.8 121 FISHER CREEK 9100 22.5 20.5 110 19.7 20.6 96 NORTHEAST ENTRANCE 7350 7.2 6.3 114 7.9 8.2 96 PARKER PEAK 9400 16.8 12.9 130 15.5 11.3 137 SYLVAN LAKE 8420 13.3 12.9 103 15.6 14.8 105 THUMB DIVIDE 7980 7.7 9.6 80 8.2 12.2 67 TWO OCEAN PLATEAU 9240 19.6 17.4 113 16.2 17.2 94 WHITE MILL 8700 16.8 14.5 116 14.4 15.3 94 WOLVERINE 7650 9.4 7.0 134 7.9 8.1 98 ----- ----- Basin Index (%) 117 104 WIND RIVER BURROUGHS CREEK 8750 -M 8.3 * -M 10.4 * CASTLE CREEK 8400 4.5 -M * 6.2 -M * COLD SPRINGS 9630 6.0 4.5 133 7.8 6.2 126 DEER PARK 9700 5.8 9.3 62 8.4 12.2 69 HOBBS PARK 10100 8.0 7.9 101 7.4 7.8 95 KIRWIN 9550 8.9 5.8 153 8.1 7.2 112 LITTLE WARM 9370 7.3 6.3 116 8.6 8.1 106 OWL CREEK 8975 4.1 3.1 132 4.0 3.6 111 SOUTH PASS 9040 7.4 8.7 85 6.9 10.9 63 ST. LAWRENCE ALT 8620 3.4 4.2 81 6.0 5.3 113 TOGWOTEE PASS 9580 16.0 14.9 107 15.8 15.8 100 TOWNSEND CREEK 8700 4.1 5.1 80 5.0 7.0 71 ----- ----- Basin Index (%) 102 93 BIGHORN BASIN BALD MTN. 9380 15.3 10.8 142 11.6 10.6 109 BEAR TRAP MEADOW 8200 6.6 3.4 194 6.9 5.1 135 BONE SPRINGS DIV 9350 12.1 9.8 123 9.2 9.6 96 GRAVE SPRINGS 8550 7.7 4.9 157 8.3 6.4 130 KIRWIN 9550 8.9 5.8 153 8.1 7.2 112 MARQUETTE 8760 5.2 -M * 7.2 -M * MIDDLE POWDER 7760 10.8 6.3 171 9.0 7.3 123 OWL CREEK 8975 4.1 3.1 132 4.0 3.6 111 POWDER RIVER PASS 9480 9.4 6.4 147 9.8 7.8 126 SHELL CREEK 9580 10.9 9.1 120 9.0 8.9 101 TIMBER CREEK 7950 3.9 2.9 134 5.6 4.5 124 ----- ----- Basin Index (%) 144 115 SHOSHONE RIVER BLACKWATER 9780 16.8 14.7 114 14.3 13.2 108 EVENING STAR 9200 20.9 16.2 129 21.5 17.8 121 MARQUETTE 8760 5.2 -M * 7.2 -M * SYLVAN ROAD 7120 8.3 7.8 106 12.2 11.8 103 YOUNTS PEAK 8350 -M 9.5 * -M 10.4 * ----- ----- Basin Index (%) 119 112 POWDER RIVER BEAR TRAP MEADOW 8200 6.6 3.4 194 6.9 5.1 135 CLOUD PEAK RESERVOIR 9860 11.6 8.2 141 10.1 7.9 128 GRAVE SPRINGS 8550 7.7 4.9 157 8.3 6.4 130 HANSEN SAWMILL 8360 4.9 4.0 122 6.9 5.0 138 MIDDLE POWDER 7760 10.8 6.3 171 9.0 7.3 123 POWDER RIVER PASS 9480 9.4 6.4 147 9.8 7.8 126 SOLDIER PARK 8720 5.3 -M * 6.6 -M * ----- ----- Basin Index (%) 154 129 TONGUE RIVER BIG GOOSE 7990 5.6 4.9 114 7.9 6.5 122 BONE SPRINGS DIV 9350 12.1 9.8 123 9.2 9.6 96 BURGESS JUNCTION 7880 8.4 6.6 127 9.5 7.4 128 DOME LAKE 8880 6.6 6.8 97 6.7 8.3 81 LITTLE GOOSE 8870 6.4 -M * 9.0 -M * SUCKER CREEK 8880 10.1 7.0 144 11.1 8.6 129 TIE CREEK 6870 4.4 3.4 129 9.0 7.0 129 ----- ----- Basin Index (%) 123 113 BELLE FOURCHE COLE CANYON 5910 4.2 3.2 131 10.7 5.6 191 ----- ----- Basin Index (%) 131 191 CHEYENNE RIVER BASIN BLIND PARK 6890 6.7 4.6 146 13.3 7.7 173 NORTH RAPID CREEK 6130 6.3 4.2 150 12.0 6.2 194 ----- ----- Basin Index (%) 148 182 UPPER N. PLATTE ARAPAHO RIDGE 10960 15.0 13.1 115 14.9 14.0 106 BLACKHALL MTN 9820 20.7 -M * 21.0 -M * COLUMBINE 9160 19.3 14.5 133 18.1 16.3 111 DIVIDE PEAK 8880 11.4 12.2 93 15.1 13.5 112 JOE WRIGHT 10120 11.4 12.9 88 16.3 15.9 103 LAPRELE CREEK 8375 4.9 5.4 91 6.5 7.5 87 MED BOW 10500 19.2 -M * 24.6 -M * NORTH FRENCH CREEK 10130 20.4 15.9 128 21.4 16.8 127 NEVER SUMMER 10280 13.1 12.4 106 11.4 -M * OLD BATTLE 10000 19.4 19.0 102 22.5 22.2 101 RAWAH 9020 8.7 6.1 143 11.4 9.0 127 SAGE CREEK BASIN 7850 6.7 8.3 81 8.3 9.8 85 SAND LAKE 10050 19.1 16.3 117 18.7 15.0 125 SOUTH BRUSH CREEK 8440 7.6 7.3 104 10.4 9.5 109 TOWER 10500 28.8 27.2 106 27.2 25.3 108 WEBBER SPRINGS 9250 14.2 13.5 105 16.9 16.9 100 WILLOW CREEK PASS 9540 8.0 7.5 107 9.1 8.3 110 ZIRKEL 9340 20.6 18.3 113 20.0 18.7 107 ----- ----- Basin Index (%) 109 108 SWEETWATER DEER PARK 9700 5.8 9.3 62 8.4 12.2 69 LARSEN CREEK 9000 4.6 -M * 7.1 -M * SOUTH PASS 9040 7.4 8.7 85 6.9 10.9 63 ----- ----- Basin Index (%) 73 66 LOWER N. PLATTE CASPER MTN. 7900 -M 7.5 * -M 9.0 * LAPRELE CREEK 8375 4.9 5.4 91 6.5 7.5 87 RENO HILL 8400 11.0 7.6 145 13.1 8.8 149 WINDY PEAK 7900 4.0 4.1 98 6.6 6.3 105 ----- ----- Basin Index (%) 116 116 LARAMIE RIVER BROOKLYN LAKE 10240 16.7 12.0 139 14.6 12.8 114 CINNABAR PARK 9574 14.7 13.1 112 18.2 15.8 115 CROW CREEK 8330 5.6 5.7 98 7.5 6.4 117 DEADMAN HILL 10220 14.0 10.0 140 13.9 10.2 136 RAWAH 9020 8.7 6.1 143 11.4 9.0 127 ROACH 9700 10.9 9.9 110 13.5 11.7 115 ----- ----- Basin Index (%) 124 120 S. PLATTE BLACK MOUNTAIN 8920 7.7 -M * 9.0 -M * CROW CREEK 8330 5.6 5.7 98 7.5 6.4 117 DEADMAN HILL 10220 14.0 10.0 140 13.9 10.2 136 ----- ----- Basin Index (%) 125 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.5 7.0 107 11.9 9.6 124 DIVIDE PEAK 8880 11.4 12.2 93 15.1 13.5 112 ELK RIVER 8700 12.7 11.1 114 14.2 12.6 113 LITTLE SNAKE RIVER 8915 17.4 15.4 113 20.7 20.4 101 OLD BATTLE 10000 19.4 19.0 102 22.5 22.2 101 SAGE CREEK BASIN 7850 6.7 8.3 81 8.3 9.8 85 SANDSTONE RS 8150 8.1 8.0 101 12.4 11.9 104 WHISKEY PARK 8950 23.9 15.8 151 25.6 17.7 145 ----- ----- Basin Index (%) 111 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.8 8.1 84 6.4 8.3 77 BLIND BULL SUM 8650 15.6 13.7 114 11.4 12.8 89 EAST RIM DIVIDE 7930 8.1 6.8 119 7.0 7.7 91 ELKHART PARK G.S. 9400 8.5 7.4 115 7.9 8.4 94 GROS VENTRE SUMMIT 8750 8.2 8.3 99 7.2 8.2 88 GUNSIGHT PASS 9820 9.5 8.2 116 9.2 8.8 105 KENDALL R.S. 7740 8.4 7.8 108 9.5 9.2 103 LOOMIS PARK 8240 9.8 9.4 104 11.2 11.2 100 NEW FORK LAKE 8340 6.8 6.8 100 5.7 7.0 81 POCKET CREEK 9360 5.3 -M * 6.0 -M * SNIDER BASIN 8060 9.0 7.4 122 9.2 9.2 100 SPRING CREEK DIVIDE 9000 15.2 14.3 106 15.2 15.3 99 TRIPLE PEAK 8500 14.7 13.1 112 16.8 15.9 106 ----- ----- Basin Index (%) 108 96 LOWER GREEN RIVER BLACKS FORK JCT 8870 4.2 -M * 7.4 -M * BUCK PASTURE 9700 6.9 -M * 9.1 -M * EF BLACKS FORK GS 9360 3.3 -M * 6.2 -M * HAMS FORK 7840 6.4 7.0 91 6.6 7.2 92 HEWINTA 9519 4.5 5.6 80 7.8 8.6 91 HICKERSON PARK 9145 4.8 3.8 126 6.2 6.1 102 HOLE-IN-ROCK 9150 4.1 4.0 102 5.9 5.7 104 INDIAN CREEK 9425 12.5 14.5 86 11.5 13.9 83 KELLEY R.S. 8180 8.5 8.9 96 10.3 11.5 90 SPIRIT LK 10235 6.0 -M * 9.1 -M * STEEL CREEK PARK 10200 6.7 8.6 78 9.5 9.8 97 ----- ----- Basin Index (%) 91 92 UPPER BEAR RIVER BEAR RIVER RS 8777 4.7 -M * 7.3 -M * BUG LAKE 7950 9.3 10.5 89 9.5 12.3 77 BURTS MILLER RANCH 8000 3.8 -M * 4.3 -M * CHALK CREEK #1 8993 11.5 13.3 86 12.5 15.6 80 HAYDEN FORK 9212 7.2 8.5 85 11.1 13.0 85 KELLEY R.S. 8180 8.5 8.9 96 10.3 11.5 90 LILY LAKE 9156 7.7 7.4 104 9.2 10.6 87 MONTE CRISTO 8960 12.0 15.8 76 11.8 16.2 73 SALT RIVER SUMMIT 7760 7.6 7.7 99 9.7 10.6 92 ----- ----- Basin Index (%) 88 83 ----------------------------------------------------------------------------- -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.