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: MARCH 4 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 20.2 13.6 149 21.0 17.5 120 BLACK BEAR 8170 32.4 30.1 108 30.5 31.6 97 BLIND BULL SUM 8650 31.9 18.3 174 21.0 16.3 129 COTTONWOOD CREEK 7670 26.8 17.4 154 28.7 19.9 144 EAST RIM DIVIDE 7930 15.4 8.5 181 13.8 9.7 142 GRAND TARGHEE 9260 41.1 30.6 134 30.6 25.2 121 GRANITE CREEK 6770 -M 14.0 * -M 16.8 * GRASSY LAKE 7265 32.5 26.6 122 32.1 30.0 107 GROS VENTRE SUMMIT 8750 13.6 10.1 135 13.1 10.3 127 GUNSIGHT PASS 9820 17.6 10.8 163 16.4 11.0 149 LEWIS LAKE DIVIDE 7850 31.3 25.4 123 30.5 29.4 104 PHILLIPS BENCH 8200 29.6 20.0 148 27.4 23.2 118 SALT RIVER SUMMIT 7760 16.5 10.7 154 17.3 13.7 126 SNAKE RIVER STATION 6920 18.3 14.4 127 20.9 18.9 111 SPRING CREEK DIVIDE 9000 31.6 19.0 166 28.4 19.6 145 THUMB DIVIDE 7980 14.0 12.4 113 13.2 15.0 88 TOGWOTEE PASS 9580 27.6 18.3 151 -M 19.8 * TWO OCEAN PLATEAU 9240 33.1 21.8 152 -M 22.1 * WILLOW CREEK 8380 33.7 22.9 147 -M 27.3 * YOUNTS PEAK 8350 -M 11.8 * -M 12.9 * ----- ----- Basin Index (%) 141 118 MADISON-GALLATIN BLACK BEAR 8170 32.4 30.1 108 30.5 31.6 97 CANYON 7870 11.8 10.8 109 13.6 13.3 102 MADISON PLATEAU 7750 18.5 18.1 102 18.6 21.7 86 WEST YELLOWSTONE 6700 11.0 9.1 121 12.1 11.8 103 WHISKEY CREEK 6800 13.7 12.2 112 15.8 16.6 95 ----- ----- Basin Index (%) 109 95 YELLOWSTONE BEARTOOTH LAKE 9360 25.5 17.3 147 23.6 16.0 148 BURNT MTN 5880 8.3 4.1 202 14.9 9.7 154 CANYON 7870 11.8 10.8 109 13.6 13.3 102 COLE CREEK 7850 15.2 10.4 146 11.1 9.3 119 EVENING STAR 9200 33.0 19.6 168 32.4 22.5 144 FISHER CREEK 9100 35.7 26.1 137 31.3 26.0 120 NORTHEAST ENTRANCE 7350 12.8 8.4 152 12.8 10.0 128 PARKER PEAK 9400 25.3 16.2 156 21.0 14.3 147 SYLVAN LAKE 8420 19.5 16.1 121 22.2 18.3 121 THUMB DIVIDE 7980 14.0 12.4 113 13.2 15.0 88 TWO OCEAN PLATEAU 9240 33.1 21.8 152 -M 22.1 * WHITE MILL 8700 27.6 18.6 148 23.7 19.3 123 WOLVERINE 7650 15.5 8.6 180 14.3 10.1 142 ----- ----- Basin Index (%) 146 127 WIND RIVER BURROUGHS CREEK 8750 -M 10.9 * -M 13.0 * CASTLE CREEK 8400 10.1 -M * 11.7 -M * COLD SPRINGS 9630 9.7 5.6 173 11.9 7.6 157 DEER PARK 9700 13.7 10.9 126 15.7 15.5 101 HOBBS PARK 10100 12.0 10.0 120 10.7 9.7 110 KIRWIN 9550 16.4 7.2 228 14.9 8.9 167 LITTLE WARM 9370 12.9 8.2 157 15.0 10.0 150 OWL CREEK 8975 6.1 4.0 152 6.1 4.4 139 SOUTH PASS 9040 13.9 11.8 118 12.9 13.7 94 ST. LAWRENCE ALT 8620 4.0 5.4 74 7.1 6.6 108 TOGWOTEE PASS 9580 27.6 18.3 151 -M 19.8 * TOWNSEND CREEK 8700 5.9 6.8 87 6.7 8.8 76 ----- ----- Basin Index (%) 139 119 BIGHORN BASIN BALD MTN. 9380 20.1 15.2 132 15.5 13.3 117 BEAR TRAP MEADOW 8200 8.4 4.5 187 8.6 6.3 137 BONE SPRINGS DIV 9350 17.4 12.5 139 13.6 12.0 113 GRAVE SPRINGS 8550 9.2 7.1 130 9.6 8.0 120 KIRWIN 9550 16.4 7.2 228 14.9 8.9 167 MARQUETTE 8760 9.6 -M * 10.2 -M * MIDDLE POWDER 7760 12.6 8.3 152 10.4 8.9 117 OWL CREEK 8975 6.1 4.0 152 6.1 4.4 139 POWDER RIVER PASS 9480 12.8 8.1 158 13.6 9.8 139 SHELL CREEK 9580 15.8 11.9 133 13.5 10.8 125 TIMBER CREEK 7950 5.3 3.9 136 7.0 5.4 130 ----- ----- Basin Index (%) 150 128 SHOSHONE RIVER BLACKWATER 9780 27.3 17.7 154 24.1 16.4 147 EVENING STAR 9200 33.0 19.6 168 32.4 22.5 144 MARQUETTE 8760 9.6 -M * 10.2 -M * SYLVAN ROAD 7120 13.7 9.7 141 18.0 14.1 128 YOUNTS PEAK 8350 -M 11.8 * -M 12.9 * ----- ----- Basin Index (%) 157 141 POWDER RIVER BEAR TRAP MEADOW 8200 8.4 4.5 187 8.6 6.3 137 CLOUD PEAK RESERVOIR 9860 15.7 10.6 148 13.8 9.8 141 GRAVE SPRINGS 8550 9.2 7.1 130 9.6 8.0 120 HANSEN SAWMILL 8360 7.7 4.7 164 9.7 6.2 156 MIDDLE POWDER 7760 12.6 8.3 152 10.4 8.9 117 POWDER RIVER PASS 9480 12.8 8.1 158 13.6 9.8 139 SOLDIER PARK 8720 9.6 -M * 8.9 -M * ----- ----- Basin Index (%) 153 134 TONGUE RIVER BIG GOOSE 7990 8.5 6.3 135 10.6 8.0 132 BONE SPRINGS DIV 9350 17.4 12.5 139 13.6 12.0 113 BURGESS JUNCTION 7880 11.3 8.6 131 12.4 9.2 135 DOME LAKE 8880 11.3 8.8 128 10.4 10.1 103 LITTLE GOOSE 8870 9.6 -M * 12.2 -M * SUCKER CREEK 8880 13.2 9.2 143 14.7 10.8 136 TIE CREEK 6870 6.5 4.4 148 11.4 8.6 133 ----- ----- Basin Index (%) 137 125 BELLE FOURCHE COLE CANYON 5910 5.6 4.9 114 12.4 7.2 172 ----- ----- Basin Index (%) 114 172 CHEYENNE RIVER BASIN BLIND PARK 6890 8.3 6.4 130 15.0 9.6 156 NORTH RAPID CREEK 6130 8.0 6.0 133 13.7 7.7 178 ----- ----- Basin Index (%) 131 166 UPPER N. PLATTE ARAPAHO RIDGE 10960 22.8 17.0 134 22.2 18.0 123 BLACKHALL MTN 9820 31.0 -M * 27.3 -M * COLUMBINE 9160 30.2 20.2 150 -M 20.6 * DIVIDE PEAK 8880 15.3 16.3 94 18.7 17.0 110 JOE WRIGHT 10120 17.0 17.1 99 26.7 20.2 132 LAPRELE CREEK 8375 7.0 7.8 90 8.3 9.5 87 MED BOW 10500 14.2 -M * 28.7 -M * NORTH FRENCH CREEK 10130 -M 21.3 * -M 21.3 * NEVER SUMMER 10280 20.6 16.3 126 16.0 -M * OLD BATTLE 10000 28.0 24.3 115 31.4 28.3 111 RAWAH 9020 11.3 8.9 127 14.1 11.1 127 SAGE CREEK BASIN 7850 9.7 10.7 91 10.6 11.9 89 SAND LAKE 10050 26.4 21.4 123 25.6 19.1 134 SOUTH BRUSH CREEK 8440 9.8 10.6 92 12.0 11.9 101 TOWER 10500 44.8 36.9 121 -M 32.4 * WEBBER SPRINGS 9250 22.0 19.0 116 24.0 21.4 112 WILLOW CREEK PASS 9540 11.7 9.7 121 12.4 10.5 118 ZIRKEL 9340 36.9 23.6 156 27.2 23.6 115 ----- ----- Basin Index (%) 121 115 SWEETWATER DEER PARK 9700 13.7 10.9 126 15.7 15.5 101 LARSEN CREEK 9000 12.1 9.8 123 13.9 -M * SOUTH PASS 9040 13.9 11.8 118 12.9 13.7 94 ----- ----- Basin Index (%) 122 98 LOWER N. PLATTE CASPER MTN. 7900 -M 10.6 * -M 11.3 * LAPRELE CREEK 8375 7.0 7.8 90 8.3 9.5 87 RENO HILL 8400 13.0 10.5 124 15.3 11.3 135 WINDY PEAK 7900 6.6 5.9 112 9.2 7.9 116 ----- ----- Basin Index (%) 110 114 LARAMIE RIVER BROOKLYN LAKE 10240 26.0 15.5 168 25.0 16.3 153 CINNABAR PARK 9574 19.8 17.4 114 20.5 19.8 104 CROW CREEK 8330 6.4 6.8 94 9.6 7.9 122 DEADMAN HILL 10220 20.4 12.6 162 19.2 13.0 148 RAWAH 9020 11.3 8.9 127 14.1 11.1 127 ROACH 9700 -M 12.6 * -M 14.9 * ----- ----- Basin Index (%) 137 130 S. PLATTE BLACK MOUNTAIN 8920 9.8 -M * 11.1 -M * CROW CREEK 8330 6.4 6.8 94 9.6 7.9 122 DEADMAN HILL 10220 20.4 12.6 162 19.2 13.0 148 ----- ----- Basin Index (%) 138 138 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.8 10.0 98 14.6 12.3 119 DIVIDE PEAK 8880 15.3 16.3 94 18.7 17.0 110 ELK RIVER 8700 18.7 16.0 117 19.2 16.2 119 LITTLE SNAKE RIVER 8915 26.0 19.9 131 30.1 25.2 119 OLD BATTLE 10000 28.0 24.3 115 31.4 28.3 111 SAGE CREEK BASIN 7850 9.7 10.7 91 10.6 11.9 89 SANDSTONE RS 8150 10.4 10.9 95 15.2 15.3 99 WHISKEY PARK 8950 33.9 22.0 154 -M 22.6 * ----- ----- Basin Index (%) 117 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.2 10.3 138 13.3 10.7 124 BLIND BULL SUM 8650 31.9 18.3 174 21.0 16.3 129 EAST RIM DIVIDE 7930 15.4 8.5 181 13.8 9.7 142 ELKHART PARK G.S. 9400 15.9 9.6 166 14.9 10.7 139 GROS VENTRE SUMMIT 8750 13.6 10.1 135 13.1 10.3 127 GUNSIGHT PASS 9820 17.6 10.8 163 16.4 11.0 149 KENDALL R.S. 7740 20.3 9.9 205 -M 11.9 * LOOMIS PARK 8240 21.6 12.0 180 21.8 14.3 152 NEW FORK LAKE 8340 14.7 8.4 175 12.3 8.9 138 POCKET CREEK 9360 11.8 -M * 11.7 -M * SNIDER BASIN 8060 18.3 10.0 183 17.9 11.7 153 SPRING CREEK DIVIDE 9000 31.6 19.0 166 28.4 19.6 145 TRIPLE PEAK 8500 31.0 17.4 178 32.3 20.6 157 ----- ----- Basin Index (%) 171 143 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.0 -M * 10.9 -M * BUCK PASTURE 9700 11.7 -M * 13.2 -M * EF BLACKS FORK GS 9360 8.1 -M * -M -M * HAMS FORK 7840 14.3 9.5 151 12.5 9.3 134 HEWINTA 9519 8.6 8.1 106 11.4 11.0 104 HICKERSON PARK 9145 6.3 6.1 103 7.3 7.7 95 HOLE-IN-ROCK 9150 5.5 5.7 96 7.4 7.2 103 INDIAN CREEK 9425 28.3 19.2 147 22.6 18.2 124 KELLEY R.S. 8180 17.1 12.2 140 18.7 14.8 126 SPIRIT LK 10235 7.5 -M * 10.7 -M * STEEL CREEK PARK 10200 15.2 11.8 129 13.1 12.6 104 ----- ----- Basin Index (%) 131 115 UPPER BEAR RIVER BEAR RIVER RS 8777 7.9 -M * 10.1 -M * BUG LAKE 7950 19.5 15.2 128 17.1 15.8 108 BURTS MILLER RANCH 8000 5.8 -M * 5.8 -M * CHALK CREEK #1 8993 18.7 18.7 100 18.8 19.9 94 HAYDEN FORK 9212 13.1 12.4 106 17.0 16.7 102 KELLEY R.S. 8180 17.1 12.2 140 18.7 14.8 126 LILY LAKE 9156 11.5 10.6 108 12.6 13.4 94 MONTE CRISTO 8960 22.9 21.7 106 21.0 20.9 100 SALT RIVER SUMMIT 7760 16.5 10.7 154 17.3 13.7 126 ----- ----- Basin Index (%) 118 106 ----------------------------------------------------------------------------- -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.