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: APRIL 10 , 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 14.9 164 26.7 21.0 127 BLACK BEAR 8170 42.0 36.8 114 40.6 38.2 106 BLIND BULL SUM 8650 36.4 23.5 155 23.6 19.5 121 COTTONWOOD CREEK 7670 31.4 20.8 151 34.9 24.7 141 EAST RIM DIVIDE 7930 17.4 10.2 171 15.6 11.8 132 GRAND TARGHEE 9260 51.2 39.3 130 -M 31.1 * GRANITE CREEK 6770 24.1 13.9 173 24.3 19.7 123 GRASSY LAKE 7265 43.7 31.4 139 39.9 35.9 111 GROS VENTRE SUMMIT 8750 14.6 12.8 114 14.9 13.0 115 GUNSIGHT PASS 9820 20.8 13.9 150 19.1 14.0 136 LEWIS LAKE DIVIDE 7850 40.5 30.1 135 -M 35.4 * PHILLIPS BENCH 8200 35.6 25.7 139 34.7 28.2 123 SALT RIVER SUMMIT 7760 18.2 12.5 146 19.4 16.7 116 SNAKE RIVER STATION 6920 -M 14.4 * -M 22.5 * SPRING CREEK DIVIDE 9000 36.1 22.7 159 33.2 23.8 139 THUMB DIVIDE 7980 21.1 14.7 144 18.9 18.7 101 TOGWOTEE PASS 9580 32.4 22.5 144 33.4 24.4 137 TWO OCEAN PLATEAU 9240 40.9 26.4 155 -M 27.2 * WILLOW CREEK 8380 40.9 28.1 146 41.9 33.7 124 YOUNTS PEAK 8350 -M 14.5 * -M 15.8 * ----- ----- Basin Index (%) 143 123 MADISON-GALLATIN BLACK BEAR 8170 42.0 36.8 114 40.6 38.2 106 CANYON 7870 15.4 12.4 124 17.0 16.2 105 MADISON PLATEAU 7750 25.6 21.9 117 25.3 26.3 96 WEST YELLOWSTONE 6700 13.5 8.9 152 16.3 14.2 115 WHISKEY CREEK 6800 17.6 14.7 120 21.2 20.2 105 ----- ----- Basin Index (%) 120 105 YELLOWSTONE BEARTOOTH LAKE 9360 32.0 21.6 148 30.2 19.8 153 BURNT MTN 5880 10.4 3.5 297 19.7 13.2 149 CANYON 7870 15.4 12.4 124 17.0 16.2 105 COLE CREEK 7850 22.7 15.1 150 16.3 13.2 123 EVENING STAR 9200 39.6 24.0 165 40.8 27.4 149 FISHER CREEK 9100 44.3 31.4 141 40.2 31.7 127 NORTHEAST ENTRANCE 7350 15.2 8.7 175 16.0 12.3 130 PARKER PEAK 9400 32.6 19.9 164 29.4 17.8 165 SYLVAN LAKE 8420 25.3 19.6 129 29.1 22.3 130 THUMB DIVIDE 7980 21.1 14.7 144 18.9 18.7 101 TWO OCEAN PLATEAU 9240 40.9 26.4 155 -M 27.2 * WHITE MILL 8700 33.7 22.7 148 29.4 23.7 124 WOLVERINE 7650 17.3 9.5 182 17.2 12.2 141 ----- ----- Basin Index (%) 153 133 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 15.9 * CASTLE CREEK 8400 10.0 -M * 12.6 -M * COLD SPRINGS 9630 9.8 6.3 156 13.6 10.1 135 DEER PARK 9700 17.4 16.1 108 19.8 20.3 98 HOBBS PARK 10100 16.2 14.5 112 14.5 13.7 106 KIRWIN 9550 19.2 9.7 198 18.2 11.6 157 LITTLE WARM 9370 14.8 10.3 144 17.4 13.0 134 OWL CREEK 8975 8.2 5.8 141 8.3 6.2 134 SOUTH PASS 9040 16.6 15.6 106 15.5 17.6 88 ST. LAWRENCE ALT 8620 5.2 6.9 75 9.4 9.1 103 TOGWOTEE PASS 9580 32.4 22.5 144 33.4 24.4 137 TOWNSEND CREEK 8700 8.2 9.8 84 10.0 12.3 81 ----- ----- Basin Index (%) 126 116 BIGHORN BASIN BALD MTN. 9380 26.5 19.3 137 20.7 17.2 120 BEAR TRAP MEADOW 8200 11.5 4.7 245 11.6 8.7 133 BONE SPRINGS DIV 9350 22.3 17.0 131 17.7 15.7 113 GRAVE SPRINGS 8550 13.3 9.5 140 13.4 10.8 124 KIRWIN 9550 19.2 9.7 198 18.2 11.6 157 MARQUETTE 8760 15.6 -M * 13.8 -M * MIDDLE POWDER 7760 18.8 12.3 153 14.7 11.9 124 OWL CREEK 8975 8.2 5.8 141 8.3 6.2 134 POWDER RIVER PASS 9480 15.8 10.3 153 17.3 12.8 135 SHELL CREEK 9580 20.3 15.4 132 17.3 13.9 124 TIMBER CREEK 7950 6.8 5.1 133 9.4 7.5 125 ----- ----- Basin Index (%) 149 128 SHOSHONE RIVER BLACKWATER 9780 33.1 23.0 144 29.8 20.6 145 EVENING STAR 9200 39.6 24.0 165 40.8 27.4 149 MARQUETTE 8760 15.6 -M * 13.8 -M * SYLVAN ROAD 7120 15.9 10.5 151 22.0 16.7 132 YOUNTS PEAK 8350 -M 14.5 * -M 15.8 * ----- ----- Basin Index (%) 154 143 POWDER RIVER BEAR TRAP MEADOW 8200 11.5 4.7 245 11.6 8.7 133 CLOUD PEAK RESERVOIR 9860 21.3 15.1 141 19.0 13.6 140 GRAVE SPRINGS 8550 13.3 9.5 140 13.4 10.8 124 HANSEN SAWMILL 8360 10.4 6.1 170 12.8 8.7 147 MIDDLE POWDER 7760 18.8 12.3 153 14.7 11.9 124 POWDER RIVER PASS 9480 15.8 10.3 153 17.3 12.8 135 SOLDIER PARK 8720 13.3 -M * 12.2 -M * ----- ----- Basin Index (%) 157 134 TONGUE RIVER BIG GOOSE 7990 12.7 9.8 130 15.3 11.8 130 BONE SPRINGS DIV 9350 22.3 17.0 131 17.7 15.7 113 BURGESS JUNCTION 7880 16.3 12.1 135 16.6 12.5 133 DOME LAKE 8880 16.5 11.9 139 15.4 13.9 111 LITTLE GOOSE 8870 14.9 -M * 17.7 -M * SUCKER CREEK 8880 18.6 12.4 150 20.1 14.7 137 TIE CREEK 6870 9.4 5.5 171 15.6 12.0 130 ----- ----- Basin Index (%) 139 125 BELLE FOURCHE COLE CANYON 5910 7.8 4.5 173 14.4 9.6 150 ----- ----- Basin Index (%) 173 150 CHEYENNE RIVER BASIN BLIND PARK 6890 9.1 6.6 138 16.9 12.1 140 NORTH RAPID CREEK 6130 8.5 6.3 135 15.4 10.1 152 ----- ----- Basin Index (%) 136 145 UPPER N. PLATTE ARAPAHO RIDGE 10960 28.7 21.2 135 27.9 22.9 122 BLACKHALL MTN 9820 39.5 -M * -M -M * COLUMBINE 9160 37.7 23.2 162 -M 25.8 * DIVIDE PEAK 8880 21.5 20.2 106 24.2 21.7 112 JOE WRIGHT 10120 24.6 21.7 113 32.7 26.1 125 LAPRELE CREEK 8375 9.8 9.4 104 11.8 12.7 93 MED BOW 10500 2.6 -M * 36.3 -M * NORTH FRENCH CREEK 10130 38.7 30.3 128 32.8 27.0 121 NEVER SUMMER 10280 25.8 20.4 126 19.9 -M * OLD BATTLE 10000 36.0 31.8 113 38.6 35.3 109 RAWAH 9020 13.8 10.5 131 18.0 14.7 122 SAGE CREEK BASIN 7850 13.3 11.1 120 13.5 14.8 91 SAND LAKE 10050 35.8 29.6 121 34.1 25.1 136 SOUTH BRUSH CREEK 8440 13.5 11.7 115 16.1 15.5 104 TOWER 10500 53.7 46.6 115 -M 40.2 * WEBBER SPRINGS 9250 27.6 23.3 118 29.7 27.0 110 WILLOW CREEK PASS 9540 15.3 12.4 123 15.1 13.6 111 ZIRKEL 9340 42.7 25.8 166 -M 28.8 * ----- ----- Basin Index (%) 126 115 SWEETWATER DEER PARK 9700 17.4 16.1 108 19.8 20.3 98 LARSEN CREEK 9000 13.4 11.3 119 16.2 -M * SOUTH PASS 9040 16.6 15.6 106 15.5 17.6 88 ----- ----- Basin Index (%) 110 93 LOWER N. PLATTE CASPER MTN. 7900 19.0 14.5 131 16.6 15.3 108 LAPRELE CREEK 8375 9.8 9.4 104 11.8 12.7 93 RENO HILL 8400 19.3 14.1 137 21.3 15.7 136 WINDY PEAK 7900 9.3 7.6 122 12.3 10.7 115 ----- ----- Basin Index (%) 126 114 LARAMIE RIVER BROOKLYN LAKE 10240 32.8 22.2 148 31.4 21.4 147 CINNABAR PARK 9574 26.0 21.4 121 30.5 24.5 124 CROW CREEK 8330 6.9 6.6 105 11.7 11.2 104 DEADMAN HILL 10220 26.1 16.4 159 24.5 17.6 139 RAWAH 9020 13.8 10.5 131 18.0 14.7 122 ROACH 9700 22.3 16.6 134 25.0 19.4 129 ----- ----- Basin Index (%) 136 130 S. PLATTE BLACK MOUNTAIN 8920 12.7 -M * -M -M * CROW CREEK 8330 6.9 6.6 105 11.7 11.2 104 DEADMAN HILL 10220 26.1 16.4 159 24.5 17.6 139 ----- ----- Basin Index (%) 143 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.3 8.7 130 18.6 15.2 122 DIVIDE PEAK 8880 21.5 20.2 106 24.2 21.7 112 ELK RIVER 8700 22.7 18.7 121 23.5 20.3 116 LITTLE SNAKE RIVER 8915 33.0 26.0 127 36.2 30.1 120 OLD BATTLE 10000 36.0 31.8 113 38.6 35.3 109 SAGE CREEK BASIN 7850 13.3 11.1 120 13.5 14.8 91 SANDSTONE RS 8150 13.0 12.6 103 19.1 18.6 103 WHISKEY PARK 8950 43.7 27.6 158 41.5 28.2 147 ----- ----- Basin Index (%) 124 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.3 12.8 120 15.2 13.4 113 BLIND BULL SUM 8650 36.4 23.5 155 23.6 19.5 121 EAST RIM DIVIDE 7930 17.4 10.2 171 15.6 11.8 132 ELKHART PARK G.S. 9400 17.8 12.3 145 16.9 13.4 126 GROS VENTRE SUMMIT 8750 14.6 12.8 114 14.9 13.0 115 GUNSIGHT PASS 9820 20.8 13.9 150 19.1 14.0 136 KENDALL R.S. 7740 22.3 11.1 201 23.1 14.2 163 LOOMIS PARK 8240 25.5 13.8 185 24.9 17.3 144 NEW FORK LAKE 8340 16.6 10.2 163 13.6 10.8 126 POCKET CREEK 9360 12.5 -M * 12.8 -M * SNIDER BASIN 8060 19.3 12.3 157 19.6 14.2 138 SPRING CREEK DIVIDE 9000 36.1 22.7 159 33.2 23.8 139 TRIPLE PEAK 8500 -M 21.3 * 37.5 25.3 148 ----- ----- Basin Index (%) 156 135 LOWER GREEN RIVER BLACKS FORK JCT 8870 8.6 -M * 13.8 -M * BUCK PASTURE 9700 16.2 -M * 17.3 -M * EF BLACKS FORK GS 9360 10.7 -M * 10.5 -M * HAMS FORK 7840 15.7 10.0 157 14.0 11.5 122 HEWINTA 9519 13.3 10.7 124 14.7 14.3 103 HICKERSON PARK 9145 8.1 7.8 104 9.3 10.4 89 HOLE-IN-ROCK 9150 6.4 7.1 90 9.9 9.9 100 INDIAN CREEK 9425 33.4 24.8 135 27.2 22.6 120 KELLEY R.S. 8180 19.3 14.4 134 21.4 18.2 118 SPIRIT LK 10235 10.8 -M * 14.5 -M * STEEL CREEK PARK 10200 20.5 16.0 128 16.9 16.8 101 ----- ----- Basin Index (%) 129 109 UPPER BEAR RIVER BEAR RIVER RS 8777 8.1 -M * 12.7 -M * BUG LAKE 7950 24.6 18.9 130 21.2 19.5 109 BURTS MILLER RANCH 8000 4.9 -M * 7.0 -M * CHALK CREEK #1 8993 22.9 24.6 93 23.1 25.5 91 HAYDEN FORK 9212 17.1 15.1 113 21.2 21.3 100 KELLEY R.S. 8180 19.3 14.4 134 21.4 18.2 118 LILY LAKE 9156 14.5 12.8 113 15.5 17.4 89 MONTE CRISTO 8960 28.1 27.9 101 26.2 26.2 100 SALT RIVER SUMMIT 7760 18.2 12.5 146 19.4 16.7 116 ----- ----- Basin Index (%) 115 102 ----------------------------------------------------------------------------- -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.