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 MONDAY: APRIL 28 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 18.1 10.2 177 28.5 22.4 127 BLACK BEAR 8170 45.4 37.1 122 45.5 41.2 110 BLIND BULL SUM 8650 37.6 23.9 157 24.5 21.0 117 COTTONWOOD CREEK 7670 27.5 16.4 168 37.0 26.9 138 EAST RIM DIVIDE 7930 11.8 8.6 137 16.6 12.6 132 GRAND TARGHEE 9260 55.6 43.8 127 -M 33.9 * GRANITE CREEK 6770 19.9 8.8 226 26.1 20.9 125 GRASSY LAKE 7265 39.3 29.9 131 44.1 38.7 114 GROS VENTRE SUMMIT 8750 14.9 12.0 124 15.6 14.3 109 GUNSIGHT PASS 9820 20.6 13.2 156 20.6 15.8 130 LEWIS LAKE DIVIDE 7850 42.8 30.5 140 44.0 38.0 116 PHILLIPS BENCH 8200 36.7 25.6 143 38.2 30.2 126 SALT RIVER SUMMIT 7760 13.8 8.2 168 20.6 18.1 114 SNAKE RIVER STATION 6920 14.8 8.9 166 28.4 24.3 117 SPRING CREEK DIVIDE 9000 38.0 24.1 158 34.4 25.8 133 THUMB DIVIDE 7980 20.7 13.7 151 22.0 20.6 107 TOGWOTEE PASS 9580 34.4 24.7 139 35.7 26.8 133 TWO OCEAN PLATEAU 9240 39.2 29.4 133 37.4 29.6 126 WILLOW CREEK 8380 40.2 24.5 164 44.6 36.9 121 YOUNTS PEAK 8350 -M 15.2 * -M 17.3 * ----- ----- Basin Index (%) 145 121 MADISON-GALLATIN BLACK BEAR 8170 45.4 37.1 122 45.5 41.2 110 CANYON 7870 15.3 11.3 135 19.0 17.7 107 MADISON PLATEAU 7750 27.4 22.1 124 29.0 28.4 102 WEST YELLOWSTONE 6700 6.4 3.7 173 18.7 15.6 120 WHISKEY CREEK 6800 17.6 15.2 116 24.5 22.0 111 ----- ----- Basin Index (%) 125 109 YELLOWSTONE BEARTOOTH LAKE 9360 34.8 23.2 150 33.2 21.6 154 BURNT MTN 5880 5.8 .0 * 22.4 15.2 147 CANYON 7870 15.3 11.3 135 19.0 17.7 107 COLE CREEK 7850 25.6 16.3 157 19.3 15.8 122 EVENING STAR 9200 42.5 24.8 171 44.7 29.9 149 FISHER CREEK 9100 48.0 33.1 145 44.3 34.6 128 NORTHEAST ENTRANCE 7350 11.6 4.4 264 18.0 13.5 133 PARKER PEAK 9400 37.5 21.7 173 33.4 19.6 170 SYLVAN LAKE 8420 25.3 20.3 125 33.2 24.6 135 THUMB DIVIDE 7980 20.7 13.7 151 22.0 20.6 107 TWO OCEAN PLATEAU 9240 39.2 29.4 133 37.4 29.6 126 WHITE MILL 8700 36.3 23.8 153 32.7 25.8 127 WOLVERINE 7650 13.8 4.2 329 20.0 13.5 148 ----- ----- Basin Index (%) 158 135 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 17.6 * CASTLE CREEK 8400 6.8 -M * 13.3 -M * COLD SPRINGS 9630 7.1 2.0 355 14.0 12.0 117 DEER PARK 9700 17.4 16.3 107 21.0 23.0 91 HOBBS PARK 10100 15.6 15.8 99 15.4 16.3 94 KIRWIN 9550 18.9 10.3 183 19.8 13.4 148 LITTLE WARM 9370 13.3 9.1 146 18.2 14.8 123 OWL CREEK 8975 2.4 1.7 141 8.6 7.6 113 SOUTH PASS 9040 14.6 15.1 97 16.3 20.0 82 ST. LAWRENCE ALT 8620 .0 3.8 0 10.2 11.2 91 TOGWOTEE PASS 9580 34.4 24.7 139 35.7 26.8 133 TOWNSEND CREEK 8700 5.0 8.2 61 10.7 14.6 73 ----- ----- Basin Index (%) 120 106 BIGHORN BASIN BALD MTN. 9380 28.5 20.5 139 22.6 19.2 118 BEAR TRAP MEADOW 8200 7.8 1.5 520 12.6 10.2 124 BONE SPRINGS DIV 9350 24.8 16.5 150 19.7 17.8 111 GRAVE SPRINGS 8550 12.4 9.2 135 14.1 12.4 114 KIRWIN 9550 18.9 10.3 183 19.8 13.4 148 MARQUETTE 8760 15.6 -M * 15.4 -M * MIDDLE POWDER 7760 18.0 12.1 149 16.0 13.8 116 OWL CREEK 8975 2.4 1.7 141 8.6 7.6 113 POWDER RIVER PASS 9480 15.3 9.8 156 18.3 14.6 125 SHELL CREEK 9580 20.9 16.0 131 18.9 15.8 120 TIMBER CREEK 7950 2.7 3.5 77 11.0 9.5 116 ----- ----- Basin Index (%) 150 120 SHOSHONE RIVER BLACKWATER 9780 36.0 24.9 145 33.2 23.0 144 EVENING STAR 9200 42.5 24.8 171 44.7 29.9 149 MARQUETTE 8760 15.6 -M * 15.4 -M * SYLVAN ROAD 7120 8.7 7.1 123 24.6 18.2 135 YOUNTS PEAK 8350 -M 15.2 * -M 17.3 * ----- ----- Basin Index (%) 154 144 POWDER RIVER BEAR TRAP MEADOW 8200 7.8 1.5 520 12.6 10.2 124 CLOUD PEAK RESERVOIR 9860 22.6 16.5 137 21.2 16.1 132 GRAVE SPRINGS 8550 12.4 9.2 135 14.1 12.4 114 HANSEN SAWMILL 8360 8.1 3.6 225 14.1 10.5 134 MIDDLE POWDER 7760 18.0 12.1 149 16.0 13.8 116 POWDER RIVER PASS 9480 15.3 9.8 156 18.3 14.6 125 SOLDIER PARK 8720 12.0 -M * 13.7 -M * ----- ----- Basin Index (%) 160 124 TONGUE RIVER BIG GOOSE 7990 12.6 9.1 138 17.1 13.6 126 BONE SPRINGS DIV 9350 24.8 16.5 150 19.7 17.8 111 BURGESS JUNCTION 7880 17.0 12.2 139 18.2 14.4 126 DOME LAKE 8880 16.4 11.7 140 17.5 16.0 109 LITTLE GOOSE 8870 14.5 -M * 19.6 -M * SUCKER CREEK 8880 17.8 12.5 142 21.8 16.9 129 TIE CREEK 6870 6.5 2.8 232 17.1 13.8 124 ----- ----- Basin Index (%) 147 120 BELLE FOURCHE COLE CANYON 5910 3.4 .3 1133* 15.0 11.4 132 ----- ----- Basin Index (%) 1133* 132 CHEYENNE RIVER BASIN BLIND PARK 6890 1.7 2.3 74 18.2 13.9 131 NORTH RAPID CREEK 6130 2.0 2.3 87 17.3 11.9 145 ----- ----- Basin Index (%) 80 138 UPPER N. PLATTE ARAPAHO RIDGE 10960 29.0 22.3 130 29.9 25.8 116 BLACKHALL MTN 9820 38.7 -M * -M -M * COLUMBINE 9160 30.6 19.5 157 -M 28.1 * DIVIDE PEAK 8880 15.7 18.0 87 25.2 23.9 105 JOE WRIGHT 10120 26.8 23.5 114 35.4 29.3 121 LAPRELE CREEK 8375 5.0 6.9 72 12.6 14.7 86 MED BOW 10500 -M -M * 43.3 -M * NORTH FRENCH CREEK 10130 39.3 33.0 119 38.6 30.2 128 NEVER SUMMER 10280 27.7 21.5 129 22.6 -M * OLD BATTLE 10000 35.7 34.6 103 39.7 38.6 103 RAWAH 9020 9.4 7.4 127 19.8 17.0 116 SAGE CREEK BASIN 7850 3.2 1.4 229 14.0 15.9 88 SAND LAKE 10050 35.8 31.2 115 35.6 28.5 125 SOUTH BRUSH CREEK 8440 8.1 9.9 82 17.6 17.5 101 TOWER 10500 54.3 49.8 109 -M 44.1 * WEBBER SPRINGS 9250 21.6 22.0 98 30.8 29.5 104 WILLOW CREEK PASS 9540 16.2 13.8 117 16.9 15.4 110 ZIRKEL 9340 37.6 21.6 174 -M 30.5 * ----- ----- Basin Index (%) 118 110 SWEETWATER DEER PARK 9700 17.4 16.3 107 21.0 23.0 91 LARSEN CREEK 9000 8.0 9.5 84 16.4 -M * SOUTH PASS 9040 14.6 15.1 97 16.3 20.0 82 ----- ----- Basin Index (%) 98 87 LOWER N. PLATTE CASPER MTN. 7900 16.2 14.1 115 17.5 17.6 99 LAPRELE CREEK 8375 5.0 6.9 72 12.6 14.7 86 RENO HILL 8400 17.7 13.4 132 22.7 18.4 123 WINDY PEAK 7900 6.0 5.1 118 13.7 12.6 109 ----- ----- Basin Index (%) 114 105 LARAMIE RIVER BROOKLYN LAKE 10240 30.2 23.1 131 32.3 24.2 133 CINNABAR PARK 9574 24.2 20.0 121 31.8 26.6 120 CROW CREEK 8330 1.1 .0 * 14.1 13.1 108 DEADMAN HILL 10220 26.7 18.6 144 26.1 20.2 129 RAWAH 9020 9.4 7.4 127 19.8 17.0 116 ROACH 9700 20.2 17.1 118 26.6 21.9 121 ----- ----- Basin Index (%) 130 123 S. PLATTE BLACK MOUNTAIN 8920 10.1 -M * -M -M * CROW CREEK 8330 1.1 .0 * 14.1 13.1 108 DEADMAN HILL 10220 26.7 18.6 144 26.1 20.2 129 ----- ----- Basin Index (%) 149* 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .9 .6 150* 19.0 16.9 112 DIVIDE PEAK 8880 15.7 18.0 87 25.2 23.9 105 ELK RIVER 8700 15.3 14.1 109 24.4 22.3 109 LITTLE SNAKE RIVER 8915 25.9 22.9 113 37.1 32.2 115 OLD BATTLE 10000 35.7 34.6 103 39.7 38.6 103 SAGE CREEK BASIN 7850 3.2 1.4 229 14.0 15.9 88 SANDSTONE RS 8150 5.1 7.2 71 19.2 20.4 94 WHISKEY PARK 8950 37.3 25.9 144 42.8 31.0 138 ----- ----- Basin Index (%) 112 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.0 11.6 129 15.5 14.9 104 BLIND BULL SUM 8650 37.6 23.9 157 24.5 21.0 117 EAST RIM DIVIDE 7930 11.8 8.6 137 16.6 12.6 132 ELKHART PARK G.S. 9400 18.3 11.7 156 18.0 14.7 122 GROS VENTRE SUMMIT 8750 14.9 12.0 124 15.6 14.3 109 GUNSIGHT PASS 9820 20.6 13.2 156 20.6 15.8 130 KENDALL R.S. 7740 17.6 5.6 314 23.8 15.2 157 LOOMIS PARK 8240 22.7 11.4 199 26.1 18.6 140 NEW FORK LAKE 8340 12.5 6.9 181 13.8 11.8 117 POCKET CREEK 9360 12.9 -M * 13.6 -M * SNIDER BASIN 8060 13.8 9.9 139 20.2 15.3 132 SPRING CREEK DIVIDE 9000 38.0 24.1 158 34.4 25.8 133 TRIPLE PEAK 8500 33.3 18.5 180 39.0 27.4 142 ----- ----- Basin Index (%) 163 129 LOWER GREEN RIVER BLACKS FORK JCT 8870 3.5 -M * 15.1 -M * BUCK PASTURE 9700 11.6 -M * 19.3 -M * EF BLACKS FORK GS 9360 5.7 -M * 11.4 -M * HAMS FORK 7840 9.3 4.1 227 14.9 12.8 116 HEWINTA 9519 5.8 5.7 102 16.0 15.8 101 HICKERSON PARK 9145 .0 4.9 0 9.5 11.8 81 HOLE-IN-ROCK 9150 .0 3.8 0 10.8 11.2 96 INDIAN CREEK 9425 32.1 23.7 135 28.3 24.6 115 KELLEY R.S. 8180 15.8 11.8 134 21.6 19.8 109 SPIRIT LK 10235 8.1 -M * 15.6 -M * STEEL CREEK PARK 10200 21.6 16.8 129 18.4 18.7 98 ----- ----- Basin Index (%) 119 104 UPPER BEAR RIVER BEAR RIVER RS 8777 .3 -M * 14.3 -M * BUG LAKE 7950 20.1 15.9 126 22.1 21.2 104 BURTS MILLER RANCH 8000 .3 -M * 7.8 -M * CHALK CREEK #1 8993 20.5 24.6 83 25.8 27.9 92 HAYDEN FORK 9212 9.4 9.9 95 24.0 23.3 103 KELLEY R.S. 8180 15.8 11.8 134 21.6 19.8 109 LILY LAKE 9156 10.5 9.8 107 17.4 19.2 91 MONTE CRISTO 8960 23.7 27.2 87 27.7 28.7 97 SALT RIVER SUMMIT 7760 13.8 8.2 168 20.6 18.1 114 ----- ----- Basin Index (%) 106 101 ----------------------------------------------------------------------------- -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.