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: APRIL 1 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 24.5 14.8 166 25.5 20.2 126 BLACK BEAR 8170 41.3 36.3 114 38.8 36.6 106 BLIND BULL SUM 8650 36.2 22.4 162 23.0 18.8 122 COTTONWOOD CREEK 7670 31.1 21.2 147 33.9 23.7 143 EAST RIM DIVIDE 7930 17.6 10.0 176 15.3 11.3 135 GRAND TARGHEE 9260 49.6 36.5 136 35.2 29.4 120 GRANITE CREEK 6770 23.9 14.9 160 23.6 19.1 124 GRASSY LAKE 7265 41.2 31.6 130 38.3 34.6 111 GROS VENTRE SUMMIT 8750 14.9 12.9 116 14.8 12.4 119 GUNSIGHT PASS 9820 20.2 13.4 151 18.6 13.2 141 LEWIS LAKE DIVIDE 7850 39.0 29.5 132 32.2 34.1 94 PHILLIPS BENCH 8200 34.8 24.2 144 33.7 27.1 124 SALT RIVER SUMMIT 7760 18.5 12.9 143 19.1 16.0 119 SNAKE RIVER STATION 6920 -M 15.5 * -M 21.6 * SPRING CREEK DIVIDE 9000 35.2 22.5 156 31.8 22.9 139 THUMB DIVIDE 7980 20.4 14.9 137 18.0 17.8 101 TOGWOTEE PASS 9580 31.7 21.6 147 32.0 23.3 137 TWO OCEAN PLATEAU 9240 39.8 25.6 155 31.7 26.2 121 WILLOW CREEK 8380 40.4 27.8 145 40.3 32.2 125 YOUNTS PEAK 8350 -M 14.1 * -M 15.2 * ----- ----- Basin Index (%) 143 121 MADISON-GALLATIN BLACK BEAR 8170 41.3 36.3 114 38.8 36.6 106 CANYON 7870 15.2 12.3 124 16.5 15.5 106 MADISON PLATEAU 7750 24.8 21.3 116 24.3 25.2 96 WEST YELLOWSTONE 6700 14.4 10.2 141 16.0 13.5 119 WHISKEY CREEK 6800 17.6 15.0 117 20.6 19.4 106 ----- ----- Basin Index (%) 119 105 YELLOWSTONE BEARTOOTH LAKE 9360 31.0 21.0 148 28.6 18.9 151 BURNT MTN 5880 11.5 4.4 261 19.3 12.1 160 CANYON 7870 15.2 12.3 124 16.5 15.5 106 COLE CREEK 7850 22.4 13.5 166 16.0 12.0 133 EVENING STAR 9200 38.4 23.9 161 39.1 26.1 150 FISHER CREEK 9100 42.9 30.1 143 36.8 30.4 121 NORTHEAST ENTRANCE 7350 15.5 9.6 161 15.5 11.7 132 PARKER PEAK 9400 31.0 18.8 165 27.8 16.9 164 SYLVAN LAKE 8420 24.5 19.2 128 27.7 21.3 130 THUMB DIVIDE 7980 20.4 14.9 137 18.0 17.8 101 TWO OCEAN PLATEAU 9240 39.8 25.6 155 31.7 26.2 121 WHITE MILL 8700 33.2 21.6 154 28.5 22.7 126 WOLVERINE 7650 15.7 9.1 173 16.4 11.7 140 ----- ----- Basin Index (%) 152 132 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 15.2 * CASTLE CREEK 8400 10.4 -M * 12.4 -M * COLD SPRINGS 9630 9.7 7.1 137 13.1 9.5 138 DEER PARK 9700 17.0 14.7 116 19.1 18.6 103 HOBBS PARK 10100 15.5 13.4 116 13.5 12.5 108 KIRWIN 9550 18.7 9.4 199 17.2 11.0 156 LITTLE WARM 9370 14.5 10.2 142 16.7 12.3 136 OWL CREEK 8975 7.6 5.5 138 7.3 5.7 128 SOUTH PASS 9040 16.5 14.9 111 15.0 16.6 90 ST. LAWRENCE ALT 8620 5.0 6.8 74 8.1 8.5 95 TOGWOTEE PASS 9580 31.7 21.6 147 32.0 23.3 137 TOWNSEND CREEK 8700 7.9 9.0 88 9.1 11.3 81 ----- ----- Basin Index (%) 128 117 BIGHORN BASIN BALD MTN. 9380 25.2 18.6 135 19.7 16.3 121 BEAR TRAP MEADOW 8200 11.3 5.1 222 11.3 8.1 140 BONE SPRINGS DIV 9350 21.5 15.9 135 16.9 14.8 114 GRAVE SPRINGS 8550 13.2 8.9 148 12.9 10.0 129 KIRWIN 9550 18.7 9.4 199 17.2 11.0 156 MARQUETTE 8760 14.8 -M * 13.0 -M * MIDDLE POWDER 7760 18.0 11.4 158 14.3 11.1 129 OWL CREEK 8975 7.6 5.5 138 7.3 5.7 128 POWDER RIVER PASS 9480 15.7 10.0 157 16.8 12.0 140 SHELL CREEK 9580 19.4 14.5 134 16.7 13.2 127 TIMBER CREEK 7950 6.6 4.8 138 8.5 7.0 121 ----- ----- Basin Index (%) 151 130 SHOSHONE RIVER BLACKWATER 9780 31.9 22.1 144 28.6 19.7 145 EVENING STAR 9200 38.4 23.9 161 39.1 26.1 150 MARQUETTE 8760 14.8 -M * 13.0 -M * SYLVAN ROAD 7120 16.3 11.1 147 21.2 16.1 132 YOUNTS PEAK 8350 -M 14.1 * -M 15.2 * ----- ----- Basin Index (%) 152 144 POWDER RIVER BEAR TRAP MEADOW 8200 11.3 5.1 222 11.3 8.1 140 CLOUD PEAK RESERVOIR 9860 20.7 14.1 147 18.2 12.6 144 GRAVE SPRINGS 8550 13.2 8.9 148 12.9 10.0 129 HANSEN SAWMILL 8360 10.1 6.3 160 12.3 8.1 152 MIDDLE POWDER 7760 18.0 11.4 158 14.3 11.1 129 POWDER RIVER PASS 9480 15.7 10.0 157 16.8 12.0 140 SOLDIER PARK 8720 13.0 -M * 11.4 -M * ----- ----- Basin Index (%) 159 139 TONGUE RIVER BIG GOOSE 7990 12.7 8.9 143 14.8 10.6 140 BONE SPRINGS DIV 9350 21.5 15.9 135 16.9 14.8 114 BURGESS JUNCTION 7880 15.7 11.3 139 16.0 11.7 137 DOME LAKE 8880 16.0 11.5 139 14.8 12.9 115 LITTLE GOOSE 8870 -M -M * -M -M * SUCKER CREEK 8880 18.2 11.4 160 19.4 13.6 143 TIE CREEK 6870 9.5 5.4 176 15.0 10.9 138 ----- ----- Basin Index (%) 145 130 BELLE FOURCHE COLE CANYON 5910 7.9 5.8 136 14.1 8.8 160 ----- ----- Basin Index (%) 136 160 CHEYENNE RIVER BASIN BLIND PARK 6890 9.0 7.2 125 16.4 11.3 145 NORTH RAPID CREEK 6130 9.3 6.7 139 14.7 9.3 158 ----- ----- Basin Index (%) 132 151 UPPER N. PLATTE ARAPAHO RIDGE 10960 27.5 19.8 139 27.0 21.3 127 BLACKHALL MTN 9820 37.9 -M * 28.1 -M * COLUMBINE 9160 36.5 22.8 160 -M 24.5 * DIVIDE PEAK 8880 20.2 19.5 104 22.7 20.5 111 JOE WRIGHT 10120 22.4 20.2 111 31.1 24.6 126 LAPRELE CREEK 8375 9.7 9.5 102 11.0 11.8 93 MED BOW 10500 7.8 -M * 35.5 -M * NORTH FRENCH CREEK 10130 36.6 28.0 131 32.3 25.7 126 NEVER SUMMER 10280 24.6 19.6 126 18.9 -M * OLD BATTLE 10000 34.6 29.6 117 36.1 33.6 107 RAWAH 9020 14.2 10.3 138 17.1 13.5 127 SAGE CREEK BASIN 7850 13.2 12.7 104 12.5 13.8 91 SAND LAKE 10050 34.3 27.5 125 31.9 23.6 135 SOUTH BRUSH CREEK 8440 12.6 12.2 103 14.9 14.6 102 TOWER 10500 52.2 44.0 119 -M 38.1 * WEBBER SPRINGS 9250 26.9 23.0 117 28.6 25.6 112 WILLOW CREEK PASS 9540 14.7 11.8 125 14.5 12.8 113 ZIRKEL 9340 42.2 26.4 160 -M 27.2 * ----- ----- Basin Index (%) 125 116 SWEETWATER DEER PARK 9700 17.0 14.7 116 19.1 18.6 103 LARSEN CREEK 9000 14.0 12.2 115 15.8 -M * SOUTH PASS 9040 16.5 14.9 111 15.0 16.6 90 ----- ----- Basin Index (%) 114 97 LOWER N. PLATTE CASPER MTN. 7900 19.1 13.4 143 16.1 14.0 115 LAPRELE CREEK 8375 9.7 9.5 102 11.0 11.8 93 RENO HILL 8400 18.5 13.2 140 20.2 14.5 139 WINDY PEAK 7900 9.2 7.8 118 11.7 10.0 117 ----- ----- Basin Index (%) 129 117 LARAMIE RIVER BROOKLYN LAKE 10240 31.4 20.0 157 28.7 20.1 143 CINNABAR PARK 9574 24.7 20.0 124 29.6 23.0 129 CROW CREEK 8330 7.0 6.8 103 11.5 10.2 113 DEADMAN HILL 10220 24.6 15.6 158 22.9 16.4 140 RAWAH 9020 14.2 10.3 138 17.1 13.5 127 ROACH 9700 21.2 15.6 136 24.0 18.3 131 ----- ----- Basin Index (%) 139 132 S. PLATTE BLACK MOUNTAIN 8920 12.6 -M * -M -M * CROW CREEK 8330 7.0 6.8 103 11.5 10.2 113 DEADMAN HILL 10220 24.6 15.6 158 22.9 16.4 140 ----- ----- Basin Index (%) 141 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.8 10.6 111 17.7 14.5 122 DIVIDE PEAK 8880 20.2 19.5 104 22.7 20.5 111 ELK RIVER 8700 22.2 18.5 120 22.5 19.2 117 LITTLE SNAKE RIVER 8915 32.4 23.2 140 35.0 28.5 123 OLD BATTLE 10000 34.6 29.6 117 36.1 33.6 107 SAGE CREEK BASIN 7850 13.2 12.7 104 12.5 13.8 91 SANDSTONE RS 8150 12.9 13.1 98 17.9 17.7 101 WHISKEY PARK 8950 42.4 25.8 164 40.3 26.9 150 ----- ----- Basin Index (%) 124 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.9 12.3 129 14.8 12.7 117 BLIND BULL SUM 8650 36.2 22.4 162 23.0 18.8 122 EAST RIM DIVIDE 7930 17.6 10.0 176 15.3 11.3 135 ELKHART PARK G.S. 9400 17.5 12.1 145 16.4 12.8 128 GROS VENTRE SUMMIT 8750 14.9 12.9 116 14.8 12.4 119 GUNSIGHT PASS 9820 20.2 13.4 151 18.6 13.2 141 KENDALL R.S. 7740 22.5 11.4 197 22.8 13.7 166 LOOMIS PARK 8240 24.9 14.3 174 24.4 16.7 146 NEW FORK LAKE 8340 16.3 10.3 158 13.6 10.4 131 POCKET CREEK 9360 12.7 -M * 12.5 -M * SNIDER BASIN 8060 20.3 12.2 166 19.2 13.7 140 SPRING CREEK DIVIDE 9000 35.2 22.5 156 31.8 22.9 139 TRIPLE PEAK 8500 35.3 21.7 163 36.6 24.4 150 ----- ----- Basin Index (%) 158 137 LOWER GREEN RIVER BLACKS FORK JCT 8870 8.9 -M * 13.4 -M * BUCK PASTURE 9700 15.2 -M * 16.5 -M * EF BLACKS FORK GS 9360 10.7 -M * 10.1 -M * HAMS FORK 7840 16.7 10.8 155 13.7 10.9 126 HEWINTA 9519 11.8 10.9 108 14.2 13.4 106 HICKERSON PARK 9145 7.2 7.5 96 8.8 9.7 91 HOLE-IN-ROCK 9150 6.6 7.0 94 9.1 9.2 99 INDIAN CREEK 9425 32.9 23.9 138 26.5 21.7 122 KELLEY R.S. 8180 19.1 14.9 128 20.9 17.4 120 SPIRIT LK 10235 9.8 -M * 13.2 -M * STEEL CREEK PARK 10200 19.5 15.3 127 16.1 15.7 103 ----- ----- Basin Index (%) 126 112 UPPER BEAR RIVER BEAR RIVER RS 8777 10.3 -M * 12.3 -M * BUG LAKE 7950 23.9 18.1 132 20.6 18.6 111 BURTS MILLER RANCH 8000 7.0 -M * 6.9 -M * CHALK CREEK #1 8993 22.9 23.4 98 22.4 24.1 93 HAYDEN FORK 9212 17.4 15.1 115 20.5 20.1 102 KELLEY R.S. 8180 19.1 14.9 128 20.9 17.4 120 LILY LAKE 9156 13.9 12.1 115 15.0 16.3 92 MONTE CRISTO 8960 27.9 26.3 106 25.4 24.9 102 SALT RIVER SUMMIT 7760 18.5 12.9 143 19.1 16.0 119 ----- ----- 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.