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 18 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 23.2 14.6 159 23.6 18.8 126 BLACK BEAR 8170 37.8 32.2 117 35.0 34.2 102 BLIND BULL SUM 8650 34.5 20.3 170 22.4 17.5 128 COTTONWOOD CREEK 7670 29.8 19.5 153 32.1 21.7 148 EAST RIM DIVIDE 7930 16.7 9.5 176 14.7 10.5 140 GRAND TARGHEE 9260 46.9 32.8 143 34.5 26.8 129 GRANITE CREEK 6770 23.0 15.0 153 23.1 18.0 128 GRASSY LAKE 7265 36.2 29.1 124 34.9 32.3 108 GROS VENTRE SUMMIT 8750 14.3 11.4 125 14.4 11.3 127 GUNSIGHT PASS 9820 19.5 11.9 164 17.9 12.0 149 LEWIS LAKE DIVIDE 7850 34.4 27.5 125 -M 31.8 * PHILLIPS BENCH 8200 33.1 22.2 149 -M 25.1 * SALT RIVER SUMMIT 7760 17.5 11.9 147 18.4 14.8 124 SNAKE RIVER STATION 6920 20.3 15.2 134 23.0 20.2 114 SPRING CREEK DIVIDE 9000 33.7 20.7 163 31.0 21.2 146 THUMB DIVIDE 7980 16.3 13.9 117 14.9 16.3 91 TOGWOTEE PASS 9580 30.0 20.4 147 -M 21.5 * TWO OCEAN PLATEAU 9240 36.7 23.8 154 -M 24.1 * WILLOW CREEK 8380 37.8 25.3 149 36.8 29.6 124 YOUNTS PEAK 8350 -M 13.2 * -M 14.0 * ----- ----- Basin Index (%) 144 123 MADISON-GALLATIN BLACK BEAR 8170 37.8 32.2 117 35.0 34.2 102 CANYON 7870 13.5 11.7 115 15.0 14.4 104 MADISON PLATEAU 7750 21.6 20.0 108 21.7 23.4 93 WEST YELLOWSTONE 6700 12.2 9.9 123 13.8 12.6 110 WHISKEY CREEK 6800 15.5 13.9 112 18.0 18.0 100 ----- ----- Basin Index (%) 115 101 YELLOWSTONE BEARTOOTH LAKE 9360 28.7 19.0 151 26.1 17.5 149 BURNT MTN 5880 9.5 4.5 211 16.7 10.6 158 CANYON 7870 13.5 11.7 115 15.0 14.4 104 COLE CREEK 7850 18.4 11.8 156 12.7 10.5 121 EVENING STAR 9200 36.0 21.9 164 35.0 24.2 145 FISHER CREEK 9100 40.0 28.1 142 34.9 28.2 124 NORTHEAST ENTRANCE 7350 14.2 8.9 160 14.1 10.9 129 PARKER PEAK 9400 28.0 17.5 160 22.0 15.5 142 SYLVAN LAKE 8420 21.8 17.9 122 24.8 19.7 126 THUMB DIVIDE 7980 16.3 13.9 117 14.9 16.3 91 TWO OCEAN PLATEAU 9240 36.7 23.8 154 -M 24.1 * WHITE MILL 8700 30.6 19.7 155 26.0 21.0 124 WOLVERINE 7650 14.7 8.8 167 15.2 10.8 141 ----- ----- Basin Index (%) 149 129 WIND RIVER BURROUGHS CREEK 8750 -M 12.2 * -M 14.1 * CASTLE CREEK 8400 10.1 -M * 11.9 -M * COLD SPRINGS 9630 9.3 6.2 150 12.2 8.4 145 DEER PARK 9700 15.2 12.8 119 17.6 16.9 104 HOBBS PARK 10100 13.9 11.5 121 12.4 10.9 114 KIRWIN 9550 17.5 8.3 211 16.1 9.8 164 LITTLE WARM 9370 13.9 9.1 153 16.1 11.0 146 OWL CREEK 8975 6.6 4.6 143 6.7 4.9 137 SOUTH PASS 9040 15.2 13.4 113 14.1 15.1 93 ST. LAWRENCE ALT 8620 4.7 6.0 78 8.3 7.4 112 TOGWOTEE PASS 9580 30.0 20.4 147 -M 21.5 * TOWNSEND CREEK 8700 6.9 8.0 86 8.0 9.9 81 ----- ----- Basin Index (%) 133 118 BIGHORN BASIN BALD MTN. 9380 22.5 16.4 137 17.2 14.6 118 BEAR TRAP MEADOW 8200 9.6 4.9 196 9.5 6.9 138 BONE SPRINGS DIV 9350 18.8 13.9 135 14.6 13.2 111 GRAVE SPRINGS 8550 11.0 8.0 138 10.9 8.8 124 KIRWIN 9550 17.5 8.3 211 16.1 9.8 164 MARQUETTE 8760 11.6 -M * 10.9 -M * MIDDLE POWDER 7760 14.6 9.5 154 11.7 9.8 119 OWL CREEK 8975 6.6 4.6 143 6.7 4.9 137 POWDER RIVER PASS 9480 14.1 9.0 157 14.9 10.6 141 SHELL CREEK 9580 17.5 12.7 138 14.9 11.7 127 TIMBER CREEK 7950 5.6 4.2 133 7.5 6.0 125 ----- ----- Basin Index (%) 151 129 SHOSHONE RIVER BLACKWATER 9780 29.3 20.5 143 26.3 17.9 147 EVENING STAR 9200 36.0 21.9 164 35.0 24.2 145 MARQUETTE 8760 11.6 -M * 10.9 -M * SYLVAN ROAD 7120 14.6 10.3 142 19.2 15.0 128 YOUNTS PEAK 8350 -M 13.2 * -M 14.0 * ----- ----- Basin Index (%) 152 141 POWDER RIVER BEAR TRAP MEADOW 8200 9.6 4.9 196 9.5 6.9 138 CLOUD PEAK RESERVOIR 9860 18.8 12.6 149 16.3 11.0 148 GRAVE SPRINGS 8550 11.0 8.0 138 10.9 8.8 124 HANSEN SAWMILL 8360 8.7 5.5 158 10.8 7.0 154 MIDDLE POWDER 7760 14.6 9.5 154 11.7 9.8 119 POWDER RIVER PASS 9480 14.1 9.0 157 14.9 10.6 141 SOLDIER PARK 8720 11.5 -M * 10.2 -M * ----- ----- Basin Index (%) 155 137 TONGUE RIVER BIG GOOSE 7990 11.0 7.6 145 12.8 8.9 144 BONE SPRINGS DIV 9350 18.8 13.9 135 14.6 13.2 111 BURGESS JUNCTION 7880 13.5 9.4 144 13.9 10.2 136 DOME LAKE 8880 13.7 10.0 137 12.6 11.2 112 LITTLE GOOSE 8870 12.5 -M * 15.1 -M * SUCKER CREEK 8880 15.8 10.7 148 16.9 12.0 141 TIE CREEK 6870 8.3 4.9 169 13.4 9.6 140 ----- ----- Basin Index (%) 144 129 BELLE FOURCHE COLE CANYON 5910 7.5 5.5 136 12.8 7.8 164 ----- ----- Basin Index (%) 136 164 CHEYENNE RIVER BASIN BLIND PARK 6890 9.0 7.2 125 15.6 10.4 150 NORTH RAPID CREEK 6130 9.0 6.4 141 14.3 8.5 168 ----- ----- Basin Index (%) 132 158 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.8 18.0 138 24.2 19.4 125 BLACKHALL MTN 9820 34.2 -M * 28.0 -M * COLUMBINE 9160 32.5 21.8 149 -M 22.6 * DIVIDE PEAK 8880 17.6 17.4 101 20.3 18.8 108 JOE WRIGHT 10120 18.9 18.9 100 28.7 22.5 128 LAPRELE CREEK 8375 8.2 9.0 91 9.4 10.6 89 MED BOW 10500 11.2 -M * 34.2 -M * NORTH FRENCH CREEK 10130 31.9 24.6 130 30.4 23.4 130 NEVER SUMMER 10280 22.5 17.6 128 16.9 -M * OLD BATTLE 10000 30.8 26.2 118 33.6 31.0 108 RAWAH 9020 13.2 9.2 143 15.6 11.8 132 SAGE CREEK BASIN 7850 11.7 11.6 101 11.4 12.9 88 SAND LAKE 10050 30.5 24.2 126 28.0 21.3 131 SOUTH BRUSH CREEK 8440 11.4 11.1 103 13.2 13.1 101 TOWER 10500 47.6 39.5 121 -M 35.3 * WEBBER SPRINGS 9250 24.2 20.9 116 25.7 23.5 109 WILLOW CREEK PASS 9540 13.4 10.8 124 13.1 11.6 113 ZIRKEL 9340 39.0 25.8 151 27.9 25.1 111 ----- ----- Basin Index (%) 123 115 SWEETWATER DEER PARK 9700 15.2 12.8 119 17.6 16.9 104 LARSEN CREEK 9000 12.9 11.0 117 15.0 -M * SOUTH PASS 9040 15.2 13.4 113 14.1 15.1 93 ----- ----- Basin Index (%) 116 99 LOWER N. PLATTE CASPER MTN. 7900 16.2 12.0 135 14.2 12.5 114 LAPRELE CREEK 8375 8.2 9.0 91 9.4 10.6 89 RENO HILL 8400 15.7 11.8 133 17.3 12.7 136 WINDY PEAK 7900 7.8 6.9 113 10.4 8.9 117 ----- ----- Basin Index (%) 121 115 LARAMIE RIVER BROOKLYN LAKE 10240 29.1 17.5 166 26.7 18.1 148 CINNABAR PARK 9574 22.1 17.8 124 20.8 21.1 99 CROW CREEK 8330 6.6 7.0 94 10.4 8.7 120 DEADMAN HILL 10220 22.5 13.7 164 20.5 14.7 139 RAWAH 9020 13.2 9.2 143 15.6 11.8 132 ROACH 9700 19.3 13.8 140 22.0 16.6 133 ----- ----- Basin Index (%) 143 127 S. PLATTE BLACK MOUNTAIN 8920 11.2 -M * 10.2 -M * CROW CREEK 8330 6.6 7.0 94 10.4 8.7 120 DEADMAN HILL 10220 22.5 13.7 164 20.5 14.7 139 ----- ----- Basin Index (%) 141 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.9 11.2 106 15.5 13.4 116 DIVIDE PEAK 8880 17.6 17.4 101 20.3 18.8 108 ELK RIVER 8700 20.3 17.3 117 20.0 17.7 113 LITTLE SNAKE RIVER 8915 28.8 20.8 138 31.8 26.2 121 OLD BATTLE 10000 30.8 26.2 118 33.6 31.0 108 SAGE CREEK BASIN 7850 11.7 11.6 101 11.4 12.9 88 SANDSTONE RS 8150 11.2 11.8 95 16.3 16.5 99 WHISKEY PARK 8950 37.8 24.1 157 35.0 24.7 142 ----- ----- Basin Index (%) 121 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.0 11.4 132 13.9 11.6 120 BLIND BULL SUM 8650 34.5 20.3 170 22.4 17.5 128 EAST RIM DIVIDE 7930 16.7 9.5 176 14.7 10.5 140 ELKHART PARK G.S. 9400 16.9 10.5 161 15.8 11.7 135 GROS VENTRE SUMMIT 8750 14.3 11.4 125 14.4 11.3 127 GUNSIGHT PASS 9820 19.5 11.9 164 17.9 12.0 149 KENDALL R.S. 7740 22.0 11.1 198 -M 12.8 * LOOMIS PARK 8240 23.8 13.2 180 23.5 15.4 153 NEW FORK LAKE 8340 15.5 9.2 168 13.1 9.6 136 POCKET CREEK 9360 12.4 -M * 12.2 -M * SNIDER BASIN 8060 19.3 10.9 177 18.5 12.7 146 SPRING CREEK DIVIDE 9000 33.7 20.7 163 31.0 21.2 146 TRIPLE PEAK 8500 33.9 19.2 177 35.3 22.5 157 ----- ----- Basin Index (%) 166 141 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.8 -M * 12.1 -M * BUCK PASTURE 9700 13.4 -M * 14.6 -M * EF BLACKS FORK GS 9360 9.3 -M * 9.3 -M * HAMS FORK 7840 15.5 10.2 152 13.0 10.0 130 HEWINTA 9519 9.9 9.6 103 12.6 12.2 103 HICKERSON PARK 9145 7.1 6.6 108 8.0 8.7 92 HOLE-IN-ROCK 9150 5.6 6.5 86 8.1 8.2 99 INDIAN CREEK 9425 30.7 21.0 146 25.1 19.8 127 KELLEY R.S. 8180 18.3 13.2 139 19.8 16.0 124 SPIRIT LK 10235 8.5 -M * 11.8 -M * STEEL CREEK PARK 10200 16.8 13.3 126 14.4 14.1 102 ----- ----- Basin Index (%) 129 113 UPPER BEAR RIVER BEAR RIVER RS 8777 9.6 -M * 11.2 -M * BUG LAKE 7950 21.6 16.5 131 18.6 17.2 108 BURTS MILLER RANCH 8000 7.3 -M * 6.2 -M * CHALK CREEK #1 8993 20.7 20.8 100 20.3 21.9 93 HAYDEN FORK 9212 15.1 14.2 106 18.6 18.3 102 KELLEY R.S. 8180 18.3 13.2 139 19.8 16.0 124 LILY LAKE 9156 12.8 11.4 112 13.9 14.8 94 MONTE CRISTO 8960 25.4 24.1 105 23.0 22.8 101 SALT RIVER SUMMIT 7760 17.5 11.9 147 18.4 14.8 124 ----- ----- 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.