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 MONDAY: MARCH 3 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 19.5 13.6 143 20.4 17.4 117 BLACK BEAR 8170 31.2 29.9 104 29.4 31.3 94 BLIND BULL SUM 8650 31.1 18.2 171 20.4 16.1 127 COTTONWOOD CREEK 7670 26.6 17.2 155 28.5 19.8 144 EAST RIM DIVIDE 7930 15.2 8.3 183 13.5 9.6 141 GRAND TARGHEE 9260 40.6 30.5 133 30.2 25.0 121 GRANITE CREEK 6770 20.2 13.9 145 20.0 16.6 120 GRASSY LAKE 7265 31.6 26.4 120 31.4 29.8 105 GROS VENTRE SUMMIT 8750 13.5 10.0 135 12.9 10.2 126 GUNSIGHT PASS 9820 17.3 10.7 162 16.2 11.0 147 LEWIS LAKE DIVIDE 7850 29.7 25.3 117 30.3 29.2 104 PHILLIPS BENCH 8200 28.9 19.9 145 27.3 23.0 119 SALT RIVER SUMMIT 7760 16.3 10.7 152 17.1 13.6 126 SNAKE RIVER STATION 6920 17.9 14.4 124 20.5 18.8 109 SPRING CREEK DIVIDE 9000 31.2 18.8 166 28.3 19.4 146 THUMB DIVIDE 7980 13.5 12.4 109 12.7 14.8 86 TOGWOTEE PASS 9580 27.3 18.1 151 24.6 19.6 126 TWO OCEAN PLATEAU 9240 32.1 21.7 148 20.5 21.9 94 WILLOW CREEK 8380 33.3 22.6 147 31.3 27.1 115 YOUNTS PEAK 8350 -M 11.7 * -M 12.8 * ----- ----- Basin Index (%) 139 116 MADISON-GALLATIN BLACK BEAR 8170 31.2 29.9 104 29.4 31.3 94 CANYON 7870 11.7 10.7 109 13.4 13.2 102 MADISON PLATEAU 7750 17.8 18.0 99 18.0 21.5 84 WEST YELLOWSTONE 6700 10.7 9.1 118 11.8 11.8 100 WHISKEY CREEK 6800 13.2 12.1 109 15.3 16.5 93 ----- ----- Basin Index (%) 106 93 YELLOWSTONE BEARTOOTH LAKE 9360 24.5 17.1 143 22.8 15.9 143 BURNT MTN 5880 8.2 4.1 200 14.8 9.6 154 CANYON 7870 11.7 10.7 109 13.4 13.2 102 COLE CREEK 7850 15.2 10.2 149 11.2 9.2 122 EVENING STAR 9200 32.1 19.4 165 31.5 22.3 141 FISHER CREEK 9100 34.5 26.0 133 30.1 25.8 117 NORTHEAST ENTRANCE 7350 12.6 8.3 152 12.5 10.0 125 PARKER PEAK 9400 24.8 16.2 153 20.8 14.2 146 SYLVAN LAKE 8420 19.3 16.0 121 21.9 18.1 121 THUMB DIVIDE 7980 13.5 12.4 109 12.7 14.8 86 TWO OCEAN PLATEAU 9240 32.1 21.7 148 20.5 21.9 94 WHITE MILL 8700 26.7 18.5 144 22.9 19.2 119 WOLVERINE 7650 15.4 8.6 179 14.1 10.1 140 ----- ----- Basin Index (%) 143 122 WIND RIVER BURROUGHS CREEK 8750 -M 10.8 * -M 12.9 * CASTLE CREEK 8400 10.0 -M * 11.6 -M * COLD SPRINGS 9630 9.7 5.6 173 11.9 7.6 157 DEER PARK 9700 11.6 10.9 106 15.6 15.4 101 HOBBS PARK 10100 12.0 9.9 121 10.8 9.6 112 KIRWIN 9550 16.1 7.1 227 13.2 8.8 150 LITTLE WARM 9370 12.8 8.1 158 14.9 9.9 151 OWL CREEK 8975 6.1 4.0 152 6.1 4.4 139 SOUTH PASS 9040 13.8 11.6 119 12.8 13.6 94 ST. LAWRENCE ALT 8620 4.0 5.3 75 7.1 6.6 108 TOGWOTEE PASS 9580 27.3 18.1 151 24.6 19.6 126 TOWNSEND CREEK 8700 5.8 6.7 87 6.6 8.7 76 ----- ----- Basin Index (%) 137 119 BIGHORN BASIN BALD MTN. 9380 20.0 15.0 133 15.3 13.3 115 BEAR TRAP MEADOW 8200 8.4 4.5 187 8.5 6.2 137 BONE SPRINGS DIV 9350 17.2 12.3 140 13.4 11.9 113 GRAVE SPRINGS 8550 9.2 7.0 131 9.5 8.0 119 KIRWIN 9550 16.1 7.1 227 13.2 8.8 150 MARQUETTE 8760 9.3 -M * 9.9 -M * MIDDLE POWDER 7760 12.5 8.2 152 10.4 8.8 118 OWL CREEK 8975 6.1 4.0 152 6.1 4.4 139 POWDER RIVER PASS 9480 12.8 8.0 160 13.5 9.7 139 SHELL CREEK 9580 15.7 11.8 133 13.4 10.7 125 TIMBER CREEK 7950 5.3 3.9 136 6.9 5.3 130 ----- ----- Basin Index (%) 151 127 SHOSHONE RIVER BLACKWATER 9780 26.7 17.5 153 23.6 16.2 146 EVENING STAR 9200 32.1 19.4 165 31.5 22.3 141 MARQUETTE 8760 9.3 -M * 9.9 -M * SYLVAN ROAD 7120 13.5 9.6 141 17.7 14.0 126 YOUNTS PEAK 8350 -M 11.7 * -M 12.8 * ----- ----- Basin Index (%) 155 139 POWDER RIVER BEAR TRAP MEADOW 8200 8.4 4.5 187 8.5 6.2 137 CLOUD PEAK RESERVOIR 9860 15.7 10.5 150 13.8 9.7 142 GRAVE SPRINGS 8550 9.2 7.0 131 9.5 8.0 119 HANSEN SAWMILL 8360 7.6 4.7 162 9.7 6.2 156 MIDDLE POWDER 7760 12.5 8.2 152 10.4 8.8 118 POWDER RIVER PASS 9480 12.8 8.0 160 13.5 9.7 139 SOLDIER PARK 8720 9.5 -M * 8.9 -M * ----- ----- Basin Index (%) 154 135 TONGUE RIVER BIG GOOSE 7990 8.4 6.3 133 10.5 8.0 131 BONE SPRINGS DIV 9350 17.2 12.3 140 13.4 11.9 113 BURGESS JUNCTION 7880 11.2 8.4 133 12.3 9.1 135 DOME LAKE 8880 11.2 8.8 127 10.4 10.0 104 LITTLE GOOSE 8870 9.6 -M * 12.2 -M * SUCKER CREEK 8880 13.2 9.1 145 14.7 10.7 137 TIE CREEK 6870 6.5 4.4 148 11.4 8.6 133 ----- ----- Basin Index (%) 137 125 BELLE FOURCHE COLE CANYON 5910 5.4 4.9 110 12.2 7.2 169 ----- ----- Basin Index (%) 110 169 CHEYENNE RIVER BASIN BLIND PARK 6890 8.3 6.4 130 15.1 9.5 159 NORTH RAPID CREEK 6130 8.0 6.0 133 13.7 7.7 178 ----- ----- Basin Index (%) 131 167 UPPER N. PLATTE ARAPAHO RIDGE 10960 22.8 16.9 135 22.2 17.9 124 BLACKHALL MTN 9820 30.9 -M * 27.2 -M * COLUMBINE 9160 29.9 20.1 149 -M 20.6 * DIVIDE PEAK 8880 15.3 16.1 95 18.8 16.9 111 JOE WRIGHT 10120 16.9 16.9 100 26.7 20.1 133 LAPRELE CREEK 8375 6.8 7.8 87 8.3 9.4 88 MED BOW 10500 14.2 -M * 28.3 -M * NORTH FRENCH CREEK 10130 -M 21.2 * -M 21.2 * NEVER SUMMER 10280 20.6 16.3 126 16.0 -M * OLD BATTLE 10000 27.8 24.2 115 31.2 28.1 111 RAWAH 9020 11.3 8.8 128 14.0 11.0 127 SAGE CREEK BASIN 7850 9.6 10.7 90 10.6 11.8 90 SAND LAKE 10050 26.3 21.3 123 25.5 19.1 134 SOUTH BRUSH CREEK 8440 9.7 10.4 93 11.9 11.8 101 TOWER 10500 44.5 36.7 121 -M 32.3 * WEBBER SPRINGS 9250 21.8 18.9 115 23.9 21.3 112 WILLOW CREEK PASS 9540 11.7 9.7 121 12.3 10.4 118 ZIRKEL 9340 36.7 23.3 158 27.3 23.6 116 ----- ----- Basin Index (%) 121 116 SWEETWATER DEER PARK 9700 11.6 10.9 106 15.6 15.4 101 LARSEN CREEK 9000 12.0 9.7 124 13.8 -M * SOUTH PASS 9040 13.8 11.6 119 12.8 13.6 94 ----- ----- Basin Index (%) 116 98 LOWER N. PLATTE CASPER MTN. 7900 -M 10.4 * -M 11.2 * LAPRELE CREEK 8375 6.8 7.8 87 8.3 9.4 88 RENO HILL 8400 12.9 10.3 125 15.3 11.2 137 WINDY PEAK 7900 6.6 5.8 114 9.2 7.8 118 ----- ----- Basin Index (%) 110 115 LARAMIE RIVER BROOKLYN LAKE 10240 26.0 15.3 170 24.9 16.2 154 CINNABAR PARK 9574 19.8 17.3 114 20.4 19.8 103 CROW CREEK 8330 6.3 6.8 93 9.6 7.9 122 DEADMAN HILL 10220 20.4 12.5 163 19.3 12.9 150 RAWAH 9020 11.3 8.8 128 14.0 11.0 127 ROACH 9700 -M 12.6 * -M 14.8 * ----- ----- Basin Index (%) 138 130 S. PLATTE BLACK MOUNTAIN 8920 9.8 -M * 11.2 -M * CROW CREEK 8330 6.3 6.8 93 9.6 7.9 122 DEADMAN HILL 10220 20.4 12.5 163 19.3 12.9 150 ----- ----- Basin Index (%) 138 139 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.8 9.9 99 14.6 12.2 120 DIVIDE PEAK 8880 15.3 16.1 95 18.8 16.9 111 ELK RIVER 8700 18.7 15.8 118 19.2 16.1 119 LITTLE SNAKE RIVER 8915 26.0 19.8 131 30.0 25.2 119 OLD BATTLE 10000 27.8 24.2 115 31.2 28.1 111 SAGE CREEK BASIN 7850 9.6 10.7 90 10.6 11.8 90 SANDSTONE RS 8150 10.4 10.7 97 15.2 15.2 100 WHISKEY PARK 8950 33.8 21.8 155 31.1 22.6 138 ----- ----- Basin Index (%) 117 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.1 10.2 138 13.2 10.6 125 BLIND BULL SUM 8650 31.1 18.2 171 20.4 16.1 127 EAST RIM DIVIDE 7930 15.2 8.3 183 13.5 9.6 141 ELKHART PARK G.S. 9400 15.6 9.5 164 14.8 10.6 140 GROS VENTRE SUMMIT 8750 13.5 10.0 135 12.9 10.2 126 GUNSIGHT PASS 9820 17.3 10.7 162 16.2 11.0 147 KENDALL R.S. 7740 19.8 9.9 200 17.3 11.8 147 LOOMIS PARK 8240 21.2 11.9 178 21.4 14.2 151 NEW FORK LAKE 8340 14.5 8.3 175 12.2 8.8 139 POCKET CREEK 9360 11.6 -M * 11.6 -M * SNIDER BASIN 8060 18.1 9.9 183 17.7 11.7 151 SPRING CREEK DIVIDE 9000 31.2 18.8 166 28.3 19.4 146 TRIPLE PEAK 8500 30.5 17.1 178 31.8 20.5 155 ----- ----- Basin Index (%) 170 142 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.9 -M * 10.9 -M * BUCK PASTURE 9700 11.6 -M * 13.2 -M * EF BLACKS FORK GS 9360 8.0 -M * 9.6 -M * HAMS FORK 7840 14.2 9.4 151 12.4 9.2 135 HEWINTA 9519 8.6 8.0 108 11.4 11.0 104 HICKERSON PARK 9145 6.1 6.0 102 7.6 7.6 100 HOLE-IN-ROCK 9150 5.6 5.7 98 7.4 7.2 103 INDIAN CREEK 9425 28.1 19.1 147 22.5 18.0 125 KELLEY R.S. 8180 17.0 12.2 139 18.6 14.7 127 SPIRIT LK 10235 7.4 -M * 10.7 -M * STEEL CREEK PARK 10200 15.1 11.7 129 13.1 12.6 104 ----- ----- Basin Index (%) 131 116 UPPER BEAR RIVER BEAR RIVER RS 8777 8.0 -M * 10.1 -M * BUG LAKE 7950 19.5 15.0 130 17.0 15.6 109 BURTS MILLER RANCH 8000 5.8 -M * 5.8 -M * CHALK CREEK #1 8993 18.6 18.6 100 18.8 19.8 95 HAYDEN FORK 9212 13.0 12.3 106 16.9 16.6 102 KELLEY R.S. 8180 17.0 12.2 139 18.6 14.7 127 LILY LAKE 9156 11.4 10.5 109 12.6 13.4 94 MONTE CRISTO 8960 22.6 21.5 105 20.8 20.8 100 SALT RIVER SUMMIT 7760 16.3 10.7 152 17.1 13.6 126 ----- ----- Basin Index (%) 117 106 ----------------------------------------------------------------------------- -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.