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 20 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 23.3 14.7 159 24.0 19.0 126 BLACK BEAR 8170 37.7 32.5 116 35.0 34.5 101 BLIND BULL SUM 8650 34.8 20.5 170 22.4 17.6 127 COTTONWOOD CREEK 7670 29.7 19.9 149 32.1 21.9 147 EAST RIM DIVIDE 7930 16.8 9.6 175 14.7 10.6 139 GRAND TARGHEE 9260 47.0 33.0 142 34.7 27.1 128 GRANITE CREEK 6770 23.1 15.0 154 23.2 18.2 127 GRASSY LAKE 7265 36.5 29.4 124 35.0 32.7 107 GROS VENTRE SUMMIT 8750 14.2 11.6 122 14.4 11.4 126 GUNSIGHT PASS 9820 19.6 12.1 162 18.0 12.1 149 LEWIS LAKE DIVIDE 7850 34.4 27.7 124 -M 32.1 * PHILLIPS BENCH 8200 33.1 22.4 148 32.0 25.3 126 SALT RIVER SUMMIT 7760 17.5 12.0 146 18.5 15.0 123 SNAKE RIVER STATION 6920 20.2 15.2 133 23.1 20.4 113 SPRING CREEK DIVIDE 9000 33.8 21.1 160 31.2 21.5 145 THUMB DIVIDE 7980 16.3 14.1 116 15.0 16.5 91 TOGWOTEE PASS 9580 30.1 20.6 146 -M 21.8 * TWO OCEAN PLATEAU 9240 36.7 24.0 153 -M 24.4 * WILLOW CREEK 8380 37.8 25.4 149 36.9 29.9 123 YOUNTS PEAK 8350 -M 13.4 * -M 14.1 * ----- ----- Basin Index (%) 142 123 MADISON-GALLATIN BLACK BEAR 8170 37.7 32.5 116 35.0 34.5 101 CANYON 7870 13.5 11.8 114 15.0 14.6 103 MADISON PLATEAU 7750 21.6 20.1 107 21.7 23.7 92 WEST YELLOWSTONE 6700 12.5 9.9 126 13.8 12.8 108 WHISKEY CREEK 6800 15.5 14.2 109 18.1 18.2 99 ----- ----- Basin Index (%) 114 100 YELLOWSTONE BEARTOOTH LAKE 9360 28.9 19.3 150 26.2 17.7 148 BURNT MTN 5880 9.5 4.6 207 16.7 10.9 153 CANYON 7870 13.5 11.8 114 15.0 14.6 103 COLE CREEK 7850 18.7 12.0 156 13.2 10.7 123 EVENING STAR 9200 35.6 22.2 160 35.0 24.4 143 FISHER CREEK 9100 40.0 28.2 142 35.1 28.5 123 NORTHEAST ENTRANCE 7350 14.2 9.0 158 14.1 11.0 128 PARKER PEAK 9400 28.2 17.6 160 22.1 15.7 141 SYLVAN LAKE 8420 21.8 18.2 120 24.8 20.0 124 THUMB DIVIDE 7980 16.3 14.1 116 15.0 16.5 91 TWO OCEAN PLATEAU 9240 36.7 24.0 153 -M 24.4 * WHITE MILL 8700 30.8 19.9 155 26.1 21.2 123 WOLVERINE 7650 14.9 8.9 167 15.4 11.0 140 ----- ----- Basin Index (%) 147 128 WIND RIVER BURROUGHS CREEK 8750 -M 12.3 * -M 14.3 * CASTLE CREEK 8400 10.2 -M * 12.0 -M * COLD SPRINGS 9630 9.5 6.3 151 12.8 8.6 149 DEER PARK 9700 15.7 13.3 118 17.9 17.2 104 HOBBS PARK 10100 14.4 11.8 122 12.7 11.1 114 KIRWIN 9550 17.7 8.4 211 16.3 10.0 163 LITTLE WARM 9370 13.9 9.2 151 16.1 11.2 144 OWL CREEK 8975 6.9 4.6 150 6.7 5.0 134 SOUTH PASS 9040 15.6 13.8 113 14.4 15.4 94 ST. LAWRENCE ALT 8620 4.8 6.1 79 8.0 7.5 107 TOGWOTEE PASS 9580 30.1 20.6 146 -M 21.8 * TOWNSEND CREEK 8700 7.6 8.2 93 8.5 10.1 84 ----- ----- Basin Index (%) 133 118 BIGHORN BASIN BALD MTN. 9380 22.6 16.5 137 17.3 14.9 116 BEAR TRAP MEADOW 8200 9.7 5.1 190 9.7 7.1 137 BONE SPRINGS DIV 9350 19.1 14.1 135 14.9 13.4 111 GRAVE SPRINGS 8550 11.2 8.1 138 11.2 9.0 124 KIRWIN 9550 17.7 8.4 211 16.3 10.0 163 MARQUETTE 8760 12.2 -M * 11.4 -M * MIDDLE POWDER 7760 15.0 9.8 153 12.2 10.0 122 OWL CREEK 8975 6.9 4.6 150 6.7 5.0 134 POWDER RIVER PASS 9480 14.3 9.2 155 15.1 10.8 140 SHELL CREEK 9580 17.7 12.8 138 15.1 11.9 127 TIMBER CREEK 7950 6.0 4.2 143 7.6 6.1 125 ----- ----- Basin Index (%) 151 128 SHOSHONE RIVER BLACKWATER 9780 29.3 20.8 141 26.3 18.1 145 EVENING STAR 9200 35.6 22.2 160 35.0 24.4 143 MARQUETTE 8760 12.2 -M * 11.4 -M * SYLVAN ROAD 7120 14.6 10.4 140 19.2 15.1 127 YOUNTS PEAK 8350 -M 13.4 * -M 14.1 * ----- ----- Basin Index (%) 149 140 POWDER RIVER BEAR TRAP MEADOW 8200 9.7 5.1 190 9.7 7.1 137 CLOUD PEAK RESERVOIR 9860 19.1 12.9 148 16.7 11.2 149 GRAVE SPRINGS 8550 11.2 8.1 138 11.2 9.0 124 HANSEN SAWMILL 8360 8.9 5.7 156 10.9 7.1 154 MIDDLE POWDER 7760 15.0 9.8 153 12.2 10.0 122 POWDER RIVER PASS 9480 14.3 9.2 155 15.1 10.8 140 SOLDIER PARK 8720 11.6 -M * 10.4 -M * ----- ----- Basin Index (%) 154 137 TONGUE RIVER BIG GOOSE 7990 11.3 7.8 145 13.4 9.2 146 BONE SPRINGS DIV 9350 19.1 14.1 135 14.9 13.4 111 BURGESS JUNCTION 7880 13.8 9.5 145 14.4 10.5 137 DOME LAKE 8880 14.0 10.2 137 13.0 11.5 113 LITTLE GOOSE 8870 12.9 -M * 15.5 -M * SUCKER CREEK 8880 16.3 10.9 150 17.5 12.2 143 TIE CREEK 6870 8.7 5.0 174 13.7 9.8 140 ----- ----- Basin Index (%) 145 130 BELLE FOURCHE COLE CANYON 5910 7.6 5.5 138 13.0 7.9 165 ----- ----- Basin Index (%) 138 165 CHEYENNE RIVER BASIN BLIND PARK 6890 8.9 7.2 124 15.7 10.5 150 NORTH RAPID CREEK 6130 9.3 6.5 143 14.5 8.6 169 ----- ----- Basin Index (%) 133 158 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.9 18.0 138 24.7 19.7 125 BLACKHALL MTN 9820 34.8 -M * 28.0 -M * COLUMBINE 9160 32.9 22.0 150 -M 22.9 * DIVIDE PEAK 8880 18.2 17.6 103 21.0 19.1 110 JOE WRIGHT 10120 21.2 19.1 111 29.5 22.9 129 LAPRELE CREEK 8375 9.0 9.1 99 10.5 10.8 97 MED BOW 10500 10.3 -M * 34.2 -M * NORTH FRENCH CREEK 10130 32.8 25.2 130 32.1 23.7 135 NEVER SUMMER 10280 22.7 17.8 128 16.9 -M * OLD BATTLE 10000 31.3 26.3 119 34.1 31.4 109 RAWAH 9020 13.7 9.4 146 16.0 12.2 131 SAGE CREEK BASIN 7850 12.2 11.5 106 11.5 12.9 89 SAND LAKE 10050 31.7 24.6 129 30.4 21.7 140 SOUTH BRUSH CREEK 8440 11.9 11.1 107 13.8 13.3 104 TOWER 10500 47.7 40.0 119 -M 35.8 * WEBBER SPRINGS 9250 24.7 21.0 118 26.6 23.9 111 WILLOW CREEK PASS 9540 13.5 10.9 124 13.4 11.7 115 ZIRKEL 9340 39.0 25.7 152 -M 25.5 * ----- ----- Basin Index (%) 125 118 SWEETWATER DEER PARK 9700 15.7 13.3 118 17.9 17.2 104 LARSEN CREEK 9000 13.0 11.2 116 15.0 -M * SOUTH PASS 9040 15.6 13.8 113 14.4 15.4 94 ----- ----- Basin Index (%) 116 99 LOWER N. PLATTE CASPER MTN. 7900 16.9 12.2 139 14.7 12.8 115 LAPRELE CREEK 8375 9.0 9.1 99 10.5 10.8 97 RENO HILL 8400 17.0 11.9 143 17.3 13.0 133 WINDY PEAK 7900 8.8 7.1 124 11.2 9.1 123 ----- ----- Basin Index (%) 128 118 LARAMIE RIVER BROOKLYN LAKE 10240 29.6 17.7 167 26.7 18.5 144 CINNABAR PARK 9574 22.3 18.0 124 20.8 21.4 97 CROW CREEK 8330 6.9 6.9 100 10.9 8.9 122 DEADMAN HILL 10220 23.2 13.9 167 20.7 15.0 138 RAWAH 9020 13.7 9.4 146 16.0 12.2 131 ROACH 9700 19.7 14.0 141 22.1 16.9 131 ----- ----- Basin Index (%) 144 126 S. PLATTE BLACK MOUNTAIN 8920 11.8 -M * -M -M * CROW CREEK 8330 6.9 6.9 100 10.9 8.9 122 DEADMAN HILL 10220 23.2 13.9 167 20.7 15.0 138 ----- ----- Basin Index (%) 145 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.2 11.4 107 15.8 13.6 116 DIVIDE PEAK 8880 18.2 17.6 103 21.0 19.1 110 ELK RIVER 8700 20.6 17.4 118 20.5 18.0 114 LITTLE SNAKE RIVER 8915 29.4 21.1 139 32.6 26.5 123 OLD BATTLE 10000 31.3 26.3 119 34.1 31.4 109 SAGE CREEK BASIN 7850 12.2 11.5 106 11.5 12.9 89 SANDSTONE RS 8150 11.5 12.2 94 16.7 16.7 100 WHISKEY PARK 8950 38.2 24.3 157 35.0 25.0 140 ----- ----- Basin Index (%) 122 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.9 11.7 127 14.1 11.8 119 BLIND BULL SUM 8650 34.8 20.5 170 22.4 17.6 127 EAST RIM DIVIDE 7930 16.8 9.6 175 14.7 10.6 139 ELKHART PARK G.S. 9400 16.9 10.7 158 15.8 11.8 134 GROS VENTRE SUMMIT 8750 14.2 11.6 122 14.4 11.4 126 GUNSIGHT PASS 9820 19.6 12.1 162 18.0 12.1 149 KENDALL R.S. 7740 22.1 11.3 196 22.1 13.0 170 LOOMIS PARK 8240 23.8 13.3 179 23.4 15.6 150 NEW FORK LAKE 8340 15.5 9.3 167 13.2 9.7 136 POCKET CREEK 9360 12.4 -M * 12.2 -M * SNIDER BASIN 8060 19.5 11.0 177 18.7 12.8 146 SPRING CREEK DIVIDE 9000 33.8 21.1 160 31.2 21.5 145 TRIPLE PEAK 8500 34.0 19.5 174 35.3 22.7 156 ----- ----- Basin Index (%) 164 143 LOWER GREEN RIVER BLACKS FORK JCT 8870 8.1 -M * 12.2 -M * BUCK PASTURE 9700 13.6 -M * 15.1 -M * EF BLACKS FORK GS 9360 9.4 -M * 9.4 -M * HAMS FORK 7840 15.6 10.3 151 13.2 10.2 129 HEWINTA 9519 10.1 9.9 102 12.7 12.4 102 HICKERSON PARK 9145 7.9 6.6 120 8.0 8.9 90 HOLE-IN-ROCK 9150 5.9 6.6 89 8.4 8.3 101 INDIAN CREEK 9425 30.9 21.3 145 25.1 20.2 124 KELLEY R.S. 8180 18.2 13.4 136 19.8 16.2 122 SPIRIT LK 10235 8.8 -M * 12.0 -M * STEEL CREEK PARK 10200 17.0 13.4 127 14.7 14.3 103 ----- ----- Basin Index (%) 130 113 UPPER BEAR RIVER BEAR RIVER RS 8777 10.3 -M * 11.2 -M * BUG LAKE 7950 21.7 16.7 130 18.8 17.4 108 BURTS MILLER RANCH 8000 7.7 -M * 6.2 -M * CHALK CREEK #1 8993 20.9 21.2 99 20.7 22.2 93 HAYDEN FORK 9212 15.5 14.3 108 18.7 18.6 101 KELLEY R.S. 8180 18.2 13.4 136 19.8 16.2 122 LILY LAKE 9156 13.0 11.4 114 13.9 15.0 93 MONTE CRISTO 8960 25.4 24.4 104 23.2 23.1 100 SALT RIVER SUMMIT 7760 17.5 12.0 146 18.5 15.0 123 ----- ----- Basin Index (%) 117 105 ----------------------------------------------------------------------------- -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.