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 SUNDAY: APRIL 6 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 24.9 15.2 164 26.1 20.5 127 BLACK BEAR 8170 42.9 37.2 115 -M 37.6 * BLIND BULL SUM 8650 36.6 23.1 158 23.4 19.2 122 COTTONWOOD CREEK 7670 31.3 21.0 149 34.5 24.3 142 EAST RIM DIVIDE 7930 17.8 10.2 175 15.6 11.6 134 GRAND TARGHEE 9260 50.8 38.2 133 35.4 30.4 116 GRANITE CREEK 6770 24.2 14.6 166 24.1 19.4 124 GRASSY LAKE 7265 42.2 31.5 134 39.6 35.4 112 GROS VENTRE SUMMIT 8750 14.7 12.9 114 14.8 12.7 117 GUNSIGHT PASS 9820 20.6 13.7 150 19.0 13.6 140 LEWIS LAKE DIVIDE 7850 40.3 29.8 135 -M 34.8 * PHILLIPS BENCH 8200 35.3 25.2 140 34.1 27.7 123 SALT RIVER SUMMIT 7760 18.7 12.9 145 19.4 16.4 118 SNAKE RIVER STATION 6920 -M 14.9 * -M 22.1 * SPRING CREEK DIVIDE 9000 35.8 22.5 159 32.0 23.5 136 THUMB DIVIDE 7980 21.3 14.7 145 18.3 18.3 100 TOGWOTEE PASS 9580 32.5 22.0 148 32.7 23.8 137 TWO OCEAN PLATEAU 9240 40.4 25.9 156 -M 26.6 * WILLOW CREEK 8380 41.6 28.4 146 41.5 33.0 126 YOUNTS PEAK 8350 -M 14.3 * -M 15.5 * ----- ----- Basin Index (%) 143 124 MADISON-GALLATIN BLACK BEAR 8170 42.9 37.2 115 -M 37.6 * CANYON 7870 15.6 12.5 125 16.9 16.0 106 MADISON PLATEAU 7750 25.6 21.4 120 25.2 25.9 97 WEST YELLOWSTONE 6700 14.5 9.7 149 16.3 14.0 116 WHISKEY CREEK 6800 17.8 14.9 119 21.1 19.8 107 ----- ----- Basin Index (%) 122 105 YELLOWSTONE BEARTOOTH LAKE 9360 31.7 21.2 150 -M 19.4 * BURNT MTN 5880 11.8 4.6 257 19.7 12.8 154 CANYON 7870 15.6 12.5 125 16.9 16.0 106 COLE CREEK 7850 22.9 14.4 159 16.2 12.7 128 EVENING STAR 9200 39.2 23.7 165 40.1 26.8 150 FISHER CREEK 9100 43.8 31.1 141 37.0 31.1 119 NORTHEAST ENTRANCE 7350 15.7 9.1 173 15.8 12.0 132 PARKER PEAK 9400 32.2 19.3 167 28.7 17.3 166 SYLVAN LAKE 8420 25.4 19.3 132 28.9 21.8 133 THUMB DIVIDE 7980 21.3 14.7 145 18.3 18.3 100 TWO OCEAN PLATEAU 9240 40.4 25.9 156 -M 26.6 * WHITE MILL 8700 33.8 22.1 153 29.0 23.2 125 WOLVERINE 7650 15.3 9.5 161 17.0 12.0 142 ----- ----- Basin Index (%) 154 131 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 15.6 * CASTLE CREEK 8400 10.7 -M * 12.3 -M * COLD SPRINGS 9630 9.7 6.8 143 13.5 9.8 138 DEER PARK 9700 -M 15.4 * 19.6 19.6 100 HOBBS PARK 10100 16.2 14.0 116 14.2 13.2 108 KIRWIN 9550 19.3 9.6 201 17.8 11.4 156 LITTLE WARM 9370 14.8 10.2 145 17.2 12.6 137 OWL CREEK 8975 8.3 5.8 143 8.3 5.9 141 SOUTH PASS 9040 16.9 15.1 112 15.4 17.2 90 ST. LAWRENCE ALT 8620 5.4 6.8 79 8.7 8.9 98 TOGWOTEE PASS 9580 32.5 22.0 148 32.7 23.8 137 TOWNSEND CREEK 8700 8.4 9.5 88 9.7 11.9 82 ----- ----- Basin Index (%) 132 117 BIGHORN BASIN BALD MTN. 9380 25.8 19.0 136 20.3 16.7 122 BEAR TRAP MEADOW 8200 11.4 5.0 228 11.5 8.4 137 BONE SPRINGS DIV 9350 21.9 16.7 131 17.2 15.3 112 GRAVE SPRINGS 8550 13.3 9.3 143 13.2 10.4 127 KIRWIN 9550 19.3 9.6 201 17.8 11.4 156 MARQUETTE 8760 15.5 -M * 13.6 -M * MIDDLE POWDER 7760 18.2 11.9 153 14.5 11.5 126 OWL CREEK 8975 8.3 5.8 143 8.3 5.9 141 POWDER RIVER PASS 9480 15.8 10.1 156 16.9 12.4 136 SHELL CREEK 9580 19.8 15.0 132 17.0 13.6 125 TIMBER CREEK 7950 7.3 4.9 149 9.0 7.2 125 ----- ----- Basin Index (%) 150 129 SHOSHONE RIVER BLACKWATER 9780 32.6 22.4 146 29.2 20.2 145 EVENING STAR 9200 39.2 23.7 165 40.1 26.8 150 MARQUETTE 8760 15.5 -M * 13.6 -M * SYLVAN ROAD 7120 16.5 10.8 153 21.7 16.5 132 YOUNTS PEAK 8350 -M 14.3 * -M 15.5 * ----- ----- Basin Index (%) 155 143 POWDER RIVER BEAR TRAP MEADOW 8200 11.4 5.0 228 11.5 8.4 137 CLOUD PEAK RESERVOIR 9860 21.0 14.7 143 18.4 13.1 140 GRAVE SPRINGS 8550 13.3 9.3 143 13.2 10.4 127 HANSEN SAWMILL 8360 10.6 6.2 171 12.5 8.4 149 MIDDLE POWDER 7760 18.2 11.9 153 14.5 11.5 126 POWDER RIVER PASS 9480 15.8 10.1 156 16.9 12.4 136 SOLDIER PARK 8720 13.6 -M * 11.9 -M * ----- ----- Basin Index (%) 158 136 TONGUE RIVER BIG GOOSE 7990 12.8 9.5 135 15.0 11.2 134 BONE SPRINGS DIV 9350 21.9 16.7 131 17.2 15.3 112 BURGESS JUNCTION 7880 15.8 11.8 134 16.2 12.2 133 DOME LAKE 8880 16.4 11.7 140 15.0 13.4 112 LITTLE GOOSE 8870 14.6 -M * 17.0 -M * SUCKER CREEK 8880 18.3 12.0 152 19.5 14.2 137 TIE CREEK 6870 9.6 5.5 175 15.1 11.6 130 ----- ----- Basin Index (%) 141 126 BELLE FOURCHE COLE CANYON 5910 7.5 5.3 142 14.4 9.3 155 ----- ----- Basin Index (%) 142 155 CHEYENNE RIVER BASIN BLIND PARK 6890 9.3 7.1 131 16.7 11.8 142 NORTH RAPID CREEK 6130 9.5 6.6 144 15.1 9.8 154 ----- ----- Basin Index (%) 137 147 UPPER N. PLATTE ARAPAHO RIDGE 10960 28.1 20.7 136 27.4 22.2 123 BLACKHALL MTN 9820 39.0 -M * -M -M * COLUMBINE 9160 36.9 23.4 158 -M 25.2 * DIVIDE PEAK 8880 21.7 19.8 110 24.0 21.2 113 JOE WRIGHT 10120 23.4 21.0 111 32.0 25.5 125 LAPRELE CREEK 8375 10.4 9.4 111 11.6 12.3 94 MED BOW 10500 6.5 -M * 35.6 -M * NORTH FRENCH CREEK 10130 37.8 29.2 129 32.3 26.4 122 NEVER SUMMER 10280 25.3 20.3 125 19.3 -M * OLD BATTLE 10000 35.6 31.1 114 36.2 34.6 105 RAWAH 9020 14.9 10.6 141 17.6 14.0 126 SAGE CREEK BASIN 7850 14.0 12.2 115 13.5 14.3 94 SAND LAKE 10050 35.4 28.6 124 32.6 24.5 133 SOUTH BRUSH CREEK 8440 13.6 12.0 113 15.7 15.0 105 TOWER 10500 53.0 45.6 116 -M 39.4 * WEBBER SPRINGS 9250 27.7 23.1 120 29.7 26.4 112 WILLOW CREEK PASS 9540 15.1 12.1 125 14.9 13.3 112 ZIRKEL 9340 42.8 26.3 163 -M 28.1 * ----- ----- Basin Index (%) 126 115 SWEETWATER DEER PARK 9700 -M 15.4 * 19.6 19.6 100 LARSEN CREEK 9000 14.4 11.7 123 16.1 -M * SOUTH PASS 9040 16.9 15.1 112 15.4 17.2 90 ----- ----- Basin Index (%) 117 95 LOWER N. PLATTE CASPER MTN. 7900 19.6 14.3 137 16.5 14.7 112 LAPRELE CREEK 8375 10.4 9.4 111 11.6 12.3 94 RENO HILL 8400 19.6 14.0 140 21.1 15.2 139 WINDY PEAK 7900 9.6 7.8 123 12.1 10.4 116 ----- ----- Basin Index (%) 130 117 LARAMIE RIVER BROOKLYN LAKE 10240 32.3 21.5 150 30.7 20.9 147 CINNABAR PARK 9574 25.1 21.0 120 30.2 24.0 126 CROW CREEK 8330 7.2 7.0 103 11.6 10.7 108 DEADMAN HILL 10220 25.4 16.0 159 23.6 17.1 138 RAWAH 9020 14.9 10.6 141 17.6 14.0 126 ROACH 9700 22.1 16.4 135 24.6 19.0 129 ----- ----- Basin Index (%) 137 131 S. PLATTE BLACK MOUNTAIN 8920 12.9 -M * -M -M * CROW CREEK 8330 7.2 7.0 103 11.6 10.7 108 DEADMAN HILL 10220 25.4 16.0 159 23.6 17.1 138 ----- ----- Basin Index (%) 142 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.7 9.8 130 18.5 14.8 125 DIVIDE PEAK 8880 21.7 19.8 110 24.0 21.2 113 ELK RIVER 8700 23.0 19.2 120 23.1 19.8 117 LITTLE SNAKE RIVER 8915 33.5 24.9 135 35.9 29.2 123 OLD BATTLE 10000 35.6 31.1 114 36.2 34.6 105 SAGE CREEK BASIN 7850 14.0 12.2 115 13.5 14.3 94 SANDSTONE RS 8150 13.4 12.8 105 19.0 18.1 105 WHISKEY PARK 8950 43.1 27.2 158 41.2 27.6 149 ----- ----- Basin Index (%) 125 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 16.1 12.5 129 15.2 13.0 117 BLIND BULL SUM 8650 36.6 23.1 158 23.4 19.2 122 EAST RIM DIVIDE 7930 17.8 10.2 175 15.6 11.6 134 ELKHART PARK G.S. 9400 17.8 12.2 146 16.8 13.1 128 GROS VENTRE SUMMIT 8750 14.7 12.9 114 14.8 12.7 117 GUNSIGHT PASS 9820 20.6 13.7 150 19.0 13.6 140 KENDALL R.S. 7740 22.8 11.5 198 23.1 14.0 165 LOOMIS PARK 8240 25.3 13.8 183 24.7 17.0 145 NEW FORK LAKE 8340 16.4 10.3 159 13.6 10.6 128 POCKET CREEK 9360 12.9 -M * 12.7 -M * SNIDER BASIN 8060 20.4 12.3 166 19.3 14.0 138 SPRING CREEK DIVIDE 9000 35.8 22.5 159 32.0 23.5 136 TRIPLE PEAK 8500 35.6 21.9 163 36.9 25.0 148 ----- ----- Basin Index (%) 158 136 LOWER GREEN RIVER BLACKS FORK JCT 8870 9.1 -M * 13.7 -M * BUCK PASTURE 9700 15.8 -M * 17.0 -M * EF BLACKS FORK GS 9360 11.2 -M * 10.4 -M * HAMS FORK 7840 17.4 10.7 163 13.9 11.2 124 HEWINTA 9519 13.0 10.9 119 14.6 13.9 105 HICKERSON PARK 9145 8.4 7.9 106 9.2 10.2 90 HOLE-IN-ROCK 9150 6.8 7.0 97 9.8 9.7 101 INDIAN CREEK 9425 33.4 24.6 136 26.9 22.3 121 KELLEY R.S. 8180 19.2 14.8 130 21.2 17.8 119 SPIRIT LK 10235 10.9 -M * 14.3 -M * STEEL CREEK PARK 10200 20.2 15.7 129 16.7 16.3 102 ----- ----- Basin Index (%) 129 111 UPPER BEAR RIVER BEAR RIVER RS 8777 10.3 -M * 12.7 -M * BUG LAKE 7950 24.1 18.3 132 21.0 19.2 109 BURTS MILLER RANCH 8000 6.9 -M * 7.1 -M * CHALK CREEK #1 8993 23.4 24.3 96 23.0 24.9 92 HAYDEN FORK 9212 17.9 15.4 116 21.1 20.9 101 KELLEY R.S. 8180 19.2 14.8 130 21.2 17.8 119 LILY LAKE 9156 14.4 12.6 114 15.4 17.0 91 MONTE CRISTO 8960 28.4 27.6 103 25.9 25.6 101 SALT RIVER SUMMIT 7760 18.7 12.9 145 19.4 16.4 118 ----- ----- Basin Index (%) 116 104 ----------------------------------------------------------------------------- -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.