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 THURSDAY: MARCH 13 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 22.6 13.9 163 23.3 18.4 127 BLACK BEAR 8170 37.1 31.8 117 34.4 33.3 103 BLIND BULL SUM 8650 34.1 19.7 173 22.3 17.0 131 COTTONWOOD CREEK 7670 28.7 18.6 154 31.0 21.0 148 EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143 GRAND TARGHEE 9260 44.7 32.3 138 33.6 25.8 130 GRANITE CREEK 6770 -M 14.8 * -M 17.6 * GRASSY LAKE 7265 35.4 28.0 126 33.3 31.5 106 GROS VENTRE SUMMIT 8750 14.2 11.0 129 14.0 11.0 127 GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.7 150 LEWIS LAKE DIVIDE 7850 34.3 26.8 128 -M 31.0 * PHILLIPS BENCH 8200 31.7 21.5 147 -M 24.4 * SALT RIVER SUMMIT 7760 17.3 11.4 152 18.0 14.4 125 SNAKE RIVER STATION 6920 20.1 15.2 132 22.6 19.8 114 SPRING CREEK DIVIDE 9000 32.9 19.8 166 30.0 20.6 146 THUMB DIVIDE 7980 15.8 13.4 118 14.5 15.9 91 TOGWOTEE PASS 9580 29.4 19.7 149 -M 20.9 * TWO OCEAN PLATEAU 9240 35.9 23.3 154 -M 23.5 * WILLOW CREEK 8380 36.7 24.3 151 36.5 28.8 127 YOUNTS PEAK 8350 -M 12.5 * -M 13.6 * ----- ----- Basin Index (%) 144 124 MADISON-GALLATIN BLACK BEAR 8170 37.1 31.8 117 34.4 33.3 103 CANYON 7870 13.0 11.5 113 14.7 14.1 104 MADISON PLATEAU 7750 21.2 19.5 109 21.2 23.0 92 WEST YELLOWSTONE 6700 12.5 9.8 128 13.6 12.4 110 WHISKEY CREEK 6800 15.2 13.4 113 17.8 17.5 102 ----- ----- Basin Index (%) 115 101 YELLOWSTONE BEARTOOTH LAKE 9360 28.0 18.5 151 25.4 17.0 149 BURNT MTN 5880 8.7 4.3 202 15.9 10.3 154 CANYON 7870 13.0 11.5 113 14.7 14.1 104 COLE CREEK 7850 16.9 11.3 150 12.3 10.1 122 EVENING STAR 9200 35.0 21.2 165 34.2 23.6 145 FISHER CREEK 9100 39.1 27.3 143 34.4 27.5 125 NORTHEAST ENTRANCE 7350 13.8 8.7 159 13.7 10.6 129 PARKER PEAK 9400 27.3 16.9 162 22.1 15.1 146 SYLVAN LAKE 8420 21.3 17.2 124 24.1 19.2 126 THUMB DIVIDE 7980 15.8 13.4 118 14.5 15.9 91 TWO OCEAN PLATEAU 9240 35.9 23.3 154 -M 23.5 * WHITE MILL 8700 30.0 19.3 155 25.6 20.4 125 WOLVERINE 7650 15.0 8.9 169 15.0 10.6 142 ----- ----- Basin Index (%) 149 130 WIND RIVER BURROUGHS CREEK 8750 -M 11.7 * -M 13.6 * CASTLE CREEK 8400 10.2 -M * 11.9 -M * COLD SPRINGS 9630 9.9 6.0 165 12.2 8.1 151 DEER PARK 9700 15.1 12.3 123 17.2 16.4 105 HOBBS PARK 10100 13.3 11.1 120 11.9 10.5 113 KIRWIN 9550 17.1 8.0 214 15.6 9.5 164 LITTLE WARM 9370 13.6 8.8 155 15.8 10.6 149 OWL CREEK 8975 6.4 4.4 145 6.4 4.7 136 SOUTH PASS 9040 15.1 12.7 119 14.0 14.7 95 ST. LAWRENCE ALT 8620 4.3 5.9 73 7.8 7.1 110 TOGWOTEE PASS 9580 29.4 19.7 149 -M 20.9 * TOWNSEND CREEK 8700 7.0 7.5 93 7.7 9.5 81 ----- ----- Basin Index (%) 136 119 BIGHORN BASIN BALD MTN. 9380 21.1 16.0 132 16.3 14.1 116 BEAR TRAP MEADOW 8200 9.2 4.7 196 9.2 6.7 137 BONE SPRINGS DIV 9350 17.8 13.4 133 14.3 12.7 113 GRAVE SPRINGS 8550 10.0 7.6 132 10.2 8.5 120 KIRWIN 9550 17.1 8.0 214 15.6 9.5 164 MARQUETTE 8760 11.3 -M * 11.0 -M * MIDDLE POWDER 7760 13.5 9.0 150 11.1 9.5 117 OWL CREEK 8975 6.4 4.4 145 6.4 4.7 136 POWDER RIVER PASS 9480 13.8 8.6 160 14.5 10.3 141 SHELL CREEK 9580 16.5 12.3 134 14.2 11.3 126 TIMBER CREEK 7950 5.8 4.1 141 7.3 5.7 128 ----- ----- Basin Index (%) 149 128 SHOSHONE RIVER BLACKWATER 9780 28.6 19.4 147 25.7 17.4 148 EVENING STAR 9200 35.0 21.2 165 34.2 23.6 145 MARQUETTE 8760 11.3 -M * 11.0 -M * SYLVAN ROAD 7120 14.7 10.1 146 18.8 14.7 128 YOUNTS PEAK 8350 -M 12.5 * -M 13.6 * ----- ----- Basin Index (%) 154 141 POWDER RIVER BEAR TRAP MEADOW 8200 9.2 4.7 196 9.2 6.7 137 CLOUD PEAK RESERVOIR 9860 16.7 12.0 139 14.7 10.5 140 GRAVE SPRINGS 8550 10.0 7.6 132 10.2 8.5 120 HANSEN SAWMILL 8360 8.3 5.2 160 10.8 6.6 164 MIDDLE POWDER 7760 13.5 9.0 150 11.1 9.5 117 POWDER RIVER PASS 9480 13.8 8.6 160 14.5 10.3 141 SOLDIER PARK 8720 10.7 -M * 9.5 -M * ----- ----- Basin Index (%) 152 135 TONGUE RIVER BIG GOOSE 7990 9.5 7.1 134 11.5 8.5 135 BONE SPRINGS DIV 9350 17.8 13.4 133 14.3 12.7 113 BURGESS JUNCTION 7880 12.1 9.3 130 12.9 9.8 132 DOME LAKE 8880 12.4 9.5 131 11.5 10.8 106 LITTLE GOOSE 8870 10.9 -M * 13.6 -M * SUCKER CREEK 8880 14.3 10.2 140 15.7 11.5 137 TIE CREEK 6870 7.1 4.7 151 12.1 9.1 133 ----- ----- Basin Index (%) 135 125 BELLE FOURCHE COLE CANYON 5910 6.7 5.2 129 12.5 7.5 167 ----- ----- Basin Index (%) 129 167 CHEYENNE RIVER BASIN BLIND PARK 6890 8.6 6.9 125 15.3 10.1 151 NORTH RAPID CREEK 6130 8.5 6.4 133 13.9 8.2 170 ----- ----- Basin Index (%) 129 160 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.5 17.9 137 24.1 18.9 128 BLACKHALL MTN 9820 33.1 -M * 28.0 -M * COLUMBINE 9160 31.7 21.3 149 -M 22.0 * DIVIDE PEAK 8880 17.3 17.1 101 20.3 18.2 112 JOE WRIGHT 10120 18.6 18.6 100 28.4 21.8 130 LAPRELE CREEK 8375 7.5 8.7 86 9.0 10.2 88 MED BOW 10500 10.8 -M * 33.9 -M * NORTH FRENCH CREEK 10130 29.9 23.5 127 29.9 22.8 131 NEVER SUMMER 10280 21.8 17.2 127 16.8 -M * OLD BATTLE 10000 30.0 25.9 116 33.3 30.1 111 RAWAH 9020 12.9 9.3 139 15.3 11.6 132 SAGE CREEK BASIN 7850 11.3 11.8 96 11.1 12.5 89 SAND LAKE 10050 28.8 23.0 125 27.8 20.6 135 SOUTH BRUSH CREEK 8440 10.8 11.2 96 12.7 12.7 100 TOWER 10500 46.8 38.6 121 -M 34.2 * WEBBER SPRINGS 9250 23.4 20.3 115 25.5 22.9 111 WILLOW CREEK PASS 9540 13.1 10.4 126 13.3 11.2 119 ZIRKEL 9340 38.4 25.3 152 23.0 24.7 93 ----- ----- Basin Index (%) 122 115 SWEETWATER DEER PARK 9700 15.1 12.3 123 17.2 16.4 105 LARSEN CREEK 9000 12.9 10.5 123 14.8 -M * SOUTH PASS 9040 15.1 12.7 119 14.0 14.7 95 ----- ----- Basin Index (%) 121 100 LOWER N. PLATTE CASPER MTN. 7900 15.3 11.6 132 13.6 12.1 112 LAPRELE CREEK 8375 7.5 8.7 86 9.0 10.2 88 RENO HILL 8400 14.7 11.4 129 16.8 12.2 138 WINDY PEAK 7900 7.5 6.7 112 10.0 8.6 116 ----- ----- Basin Index (%) 117 115 LARAMIE RIVER BROOKLYN LAKE 10240 27.7 17.1 162 26.4 17.6 150 CINNABAR PARK 9574 21.1 17.8 119 20.5 20.7 99 CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120 DEADMAN HILL 10220 22.0 13.2 167 20.1 14.2 142 RAWAH 9020 12.9 9.3 139 15.3 11.6 132 ROACH 9700 -M 13.5 * -M 16.1 * ----- ----- Basin Index (%) 140 127 S. PLATTE BLACK MOUNTAIN 8920 10.9 -M * 11.5 -M * CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120 DEADMAN HILL 10220 22.0 13.2 167 20.1 14.2 142 ----- ----- Basin Index (%) 140 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.3 10.7 106 15.2 13.1 116 DIVIDE PEAK 8880 17.3 17.1 101 20.3 18.2 112 ELK RIVER 8700 19.8 17.0 116 20.0 17.2 116 LITTLE SNAKE RIVER 8915 27.7 20.4 136 31.6 26.0 122 OLD BATTLE 10000 30.0 25.9 116 33.3 30.1 111 SAGE CREEK BASIN 7850 11.3 11.8 96 11.1 12.5 89 SANDSTONE RS 8150 11.0 11.7 94 16.1 16.1 100 WHISKEY PARK 8950 36.2 23.6 153 35.1 24.1 146 ----- ----- Basin Index (%) 119 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.7 10.9 135 13.9 11.3 123 BLIND BULL SUM 8650 34.1 19.7 173 22.3 17.0 131 EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143 ELKHART PARK G.S. 9400 16.7 10.2 164 15.8 11.3 140 GROS VENTRE SUMMIT 8750 14.2 11.0 129 14.0 11.0 127 GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.7 150 KENDALL R.S. 7740 21.8 10.7 204 -M 12.6 * LOOMIS PARK 8240 23.4 12.8 183 23.4 15.0 156 NEW FORK LAKE 8340 15.5 9.1 170 13.1 9.4 139 POCKET CREEK 9360 12.2 -M * 12.1 -M * SNIDER BASIN 8060 18.7 10.7 175 18.3 12.3 149 SPRING CREEK DIVIDE 9000 32.9 19.8 166 30.0 20.6 146 TRIPLE PEAK 8500 33.1 18.8 176 34.3 21.8 157 ----- ----- Basin Index (%) 168 143 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.7 -M * 11.9 -M * BUCK PASTURE 9700 13.0 -M * 14.8 -M * EF BLACKS FORK GS 9360 9.0 -M * 9.1 -M * HAMS FORK 7840 15.0 10.0 150 13.0 9.7 134 HEWINTA 9519 9.7 8.8 110 12.3 11.7 105 HICKERSON PARK 9145 6.7 6.5 103 7.7 8.3 93 HOLE-IN-ROCK 9150 6.0 6.2 97 7.9 7.7 103 INDIAN CREEK 9425 29.9 20.5 146 24.7 19.1 129 KELLEY R.S. 8180 17.6 12.8 138 19.5 15.5 126 SPIRIT LK 10235 8.3 -M * 11.5 -M * STEEL CREEK PARK 10200 16.6 12.8 130 14.4 13.5 107 ----- ----- Basin Index (%) 131 116 UPPER BEAR RIVER BEAR RIVER RS 8777 9.6 -M * 11.0 -M * BUG LAKE 7950 21.1 16.3 129 18.4 16.6 111 BURTS MILLER RANCH 8000 7.0 -M * 5.9 -M * CHALK CREEK #1 8993 20.3 20.3 100 20.2 21.1 96 HAYDEN FORK 9212 14.7 13.8 107 18.2 17.7 103 KELLEY R.S. 8180 17.6 12.8 138 19.5 15.5 126 LILY LAKE 9156 12.5 11.2 112 13.7 14.3 96 MONTE CRISTO 8960 24.8 23.2 107 22.7 22.1 103 SALT RIVER SUMMIT 7760 17.3 11.4 152 18.0 14.4 125 ----- ----- Basin Index (%) 118 107 ----------------------------------------------------------------------------- -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.