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 29 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 18.0 10.0 180 28.7 22.6 127 BLACK BEAR 8170 45.5 37.3 122 45.5 41.4 110 BLIND BULL SUM 8650 37.5 23.7 158 24.5 21.1 116 COTTONWOOD CREEK 7670 27.7 16.0 173 37.2 27.1 137 EAST RIM DIVIDE 7930 11.9 8.4 142 16.5 12.7 130 GRAND TARGHEE 9260 55.6 44.1 126 -M 34.1 * GRANITE CREEK 6770 19.9 8.6 231 26.2 21.1 124 GRASSY LAKE 7265 39.3 29.7 132 44.0 38.9 113 GROS VENTRE SUMMIT 8750 14.8 11.8 125 15.7 14.4 109 GUNSIGHT PASS 9820 20.6 13.0 158 20.5 15.9 129 LEWIS LAKE DIVIDE 7850 42.7 30.4 140 44.0 38.2 115 PHILLIPS BENCH 8200 36.8 25.6 144 38.3 30.3 126 SALT RIVER SUMMIT 7760 13.9 8.1 172 20.6 18.2 113 SNAKE RIVER STATION 6920 14.8 8.4 176 28.4 24.5 116 SPRING CREEK DIVIDE 9000 38.1 24.3 157 34.5 25.9 133 THUMB DIVIDE 7980 20.6 13.3 155 22.0 20.7 106 TOGWOTEE PASS 9580 35.0 24.7 142 36.0 27.0 133 TWO OCEAN PLATEAU 9240 39.4 29.6 133 37.5 29.8 126 WILLOW CREEK 8380 40.1 24.1 166 44.7 37.1 120 YOUNTS PEAK 8350 -M 15.3 * -M 17.4 * ----- ----- Basin Index (%) 146 121 MADISON-GALLATIN BLACK BEAR 8170 45.5 37.3 122 45.5 41.4 110 CANYON 7870 15.4 11.0 140 19.1 17.8 107 MADISON PLATEAU 7750 27.4 21.9 125 29.1 28.6 102 WEST YELLOWSTONE 6700 6.0 3.1 194 18.7 15.8 118 WHISKEY CREEK 6800 17.5 15.1 116 24.6 22.1 111 ----- ----- Basin Index (%) 126 109 YELLOWSTONE BEARTOOTH LAKE 9360 34.7 23.1 150 33.2 21.7 153 BURNT MTN 5880 5.8 .0 * 22.5 15.4 146 CANYON 7870 15.4 11.0 140 19.1 17.8 107 COLE CREEK 7850 25.7 16.4 157 19.5 16.0 122 EVENING STAR 9200 42.2 24.8 170 44.8 30.1 149 FISHER CREEK 9100 47.9 33.0 145 44.4 34.8 128 NORTHEAST ENTRANCE 7350 11.6 4.0 290 18.0 13.6 132 PARKER PEAK 9400 37.7 21.5 175 33.5 19.8 169 SYLVAN LAKE 8420 25.4 20.2 126 33.2 24.7 134 THUMB DIVIDE 7980 20.6 13.3 155 22.0 20.7 106 TWO OCEAN PLATEAU 9240 39.4 29.6 133 37.5 29.8 126 WHITE MILL 8700 36.2 23.8 152 32.7 26.0 126 WOLVERINE 7650 13.4 3.6 372 20.1 13.6 148 ----- ----- Basin Index (%) 159 134 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 17.7 * CASTLE CREEK 8400 6.7 -M * 13.3 -M * COLD SPRINGS 9630 6.8 1.7 400 14.0 12.1 116 DEER PARK 9700 17.5 16.2 108 21.1 23.1 91 HOBBS PARK 10100 15.7 15.9 99 15.5 16.4 95 KIRWIN 9550 19.0 10.3 184 19.8 13.5 147 LITTLE WARM 9370 13.4 9.0 149 18.3 15.1 121 OWL CREEK 8975 2.4 1.4 171 8.6 7.7 112 SOUTH PASS 9040 14.6 15.1 97 16.3 20.1 81 ST. LAWRENCE ALT 8620 .0 3.4 0 10.2 11.3 90 TOGWOTEE PASS 9580 35.0 24.7 142 36.0 27.0 133 TOWNSEND CREEK 8700 5.0 8.0 62 10.8 14.7 73 ----- ----- Basin Index (%) 122 106 BIGHORN BASIN BALD MTN. 9380 28.9 20.5 141 22.8 19.4 118 BEAR TRAP MEADOW 8200 7.9 1.3 608 12.6 10.3 122 BONE SPRINGS DIV 9350 25.1 16.5 152 19.9 17.9 111 GRAVE SPRINGS 8550 12.7 9.3 137 14.3 12.5 114 KIRWIN 9550 19.0 10.3 184 19.8 13.5 147 MARQUETTE 8760 15.6 -M * 15.5 -M * MIDDLE POWDER 7760 18.8 11.9 158 16.4 13.9 118 OWL CREEK 8975 2.4 1.4 171 8.6 7.7 112 POWDER RIVER PASS 9480 15.3 9.7 158 18.3 14.8 124 SHELL CREEK 9580 21.2 16.0 132 19.0 16.0 119 TIMBER CREEK 7950 2.4 3.4 71 11.0 9.7 113 ----- ----- Basin Index (%) 153 120 SHOSHONE RIVER BLACKWATER 9780 36.0 25.0 144 33.2 23.1 144 EVENING STAR 9200 42.2 24.8 170 44.8 30.1 149 MARQUETTE 8760 15.6 -M * 15.5 -M * SYLVAN ROAD 7120 8.8 6.7 131 24.6 18.4 134 YOUNTS PEAK 8350 -M 15.3 * -M 17.4 * ----- ----- Basin Index (%) 154 143 POWDER RIVER BEAR TRAP MEADOW 8200 7.9 1.3 608 12.6 10.3 122 CLOUD PEAK RESERVOIR 9860 23.0 16.5 139 21.4 16.2 132 GRAVE SPRINGS 8550 12.7 9.3 137 14.3 12.5 114 HANSEN SAWMILL 8360 7.9 3.3 239 14.2 10.6 134 MIDDLE POWDER 7760 18.8 11.9 158 16.4 13.9 118 POWDER RIVER PASS 9480 15.3 9.7 158 18.3 14.8 124 SOLDIER PARK 8720 12.0 -M * 13.8 -M * ----- ----- Basin Index (%) 165 124 TONGUE RIVER BIG GOOSE 7990 12.7 9.2 138 17.2 13.7 126 BONE SPRINGS DIV 9350 25.1 16.5 152 19.9 17.9 111 BURGESS JUNCTION 7880 17.5 12.1 145 18.6 14.5 128 DOME LAKE 8880 16.8 11.6 145 17.8 16.1 111 LITTLE GOOSE 8870 14.8 -M * 19.9 -M * SUCKER CREEK 8880 18.4 12.4 148 22.5 17.0 132 TIE CREEK 6870 6.9 2.8 246 17.5 13.9 126 ----- ----- Basin Index (%) 151 122 BELLE FOURCHE COLE CANYON 5910 3.4 .3 1133* 15.2 11.5 132 ----- ----- Basin Index (%) 1133* 132 CHEYENNE RIVER BASIN BLIND PARK 6890 2.3 1.8 128 18.7 14.0 134 NORTH RAPID CREEK 6130 2.9 1.8 161 18.0 11.9 151 ----- ----- Basin Index (%) 144 142 UPPER N. PLATTE ARAPAHO RIDGE 10960 29.2 22.3 131 30.2 25.9 117 BLACKHALL MTN 9820 38.6 -M * -M -M * COLUMBINE 9160 30.6 19.1 160 -M 28.2 * DIVIDE PEAK 8880 15.6 18.0 87 25.2 24.0 105 JOE WRIGHT 10120 27.2 23.5 116 36.1 29.5 122 LAPRELE CREEK 8375 5.4 6.7 81 13.2 14.8 89 MED BOW 10500 -M -M * 43.6 -M * NORTH FRENCH CREEK 10130 39.6 33.0 120 38.9 30.4 128 NEVER SUMMER 10280 -M 21.6 * -M -M * OLD BATTLE 10000 35.2 34.6 102 39.8 38.8 103 RAWAH 9020 9.5 7.0 136 19.9 17.0 117 SAGE CREEK BASIN 7850 2.5 1.2 208* 14.0 16.0 88 SAND LAKE 10050 36.1 31.3 115 35.8 28.7 125 SOUTH BRUSH CREEK 8440 8.2 9.8 84 17.8 17.6 101 TOWER 10500 53.9 49.8 108 55.3 44.3 125 WEBBER SPRINGS 9250 21.7 22.0 99 30.9 29.7 104 WILLOW CREEK PASS 9540 16.3 13.9 117 16.8 15.5 108 ZIRKEL 9340 37.4 21.4 175 -M 30.7 * ----- ----- Basin Index (%) 117 113 SWEETWATER DEER PARK 9700 17.5 16.2 108 21.1 23.1 91 LARSEN CREEK 9000 7.8 9.4 83 16.4 -M * SOUTH PASS 9040 14.6 15.1 97 16.3 20.1 81 ----- ----- Basin Index (%) 98 87 LOWER N. PLATTE CASPER MTN. 7900 17.0 14.0 121 18.2 17.7 103 LAPRELE CREEK 8375 5.4 6.7 81 13.2 14.8 89 RENO HILL 8400 18.3 13.1 140 23.1 18.6 124 WINDY PEAK 7900 6.0 4.7 128 13.9 12.8 109 ----- ----- Basin Index (%) 121 107 LARAMIE RIVER BROOKLYN LAKE 10240 30.6 23.2 132 32.6 24.4 134 CINNABAR PARK 9574 24.3 19.9 122 31.9 26.8 119 CROW CREEK 8330 1.0 .0 * 14.1 13.3 106 DEADMAN HILL 10220 26.6 18.8 141 26.1 20.4 128 RAWAH 9020 9.5 7.0 136 19.9 17.0 117 ROACH 9700 20.4 17.3 118 26.7 22.0 121 ----- ----- Basin Index (%) 130 122 S. PLATTE BLACK MOUNTAIN 8920 10.2 -M * -M -M * CROW CREEK 8330 1.0 .0 * 14.1 13.3 106 DEADMAN HILL 10220 26.6 18.8 141 26.1 20.4 128 ----- ----- Basin Index (%) 147* 119 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .5 .0 * 19.0 17.0 112 DIVIDE PEAK 8880 15.6 18.0 87 25.2 24.0 105 ELK RIVER 8700 15.4 13.8 112 24.6 22.4 110 LITTLE SNAKE RIVER 8915 26.0 22.7 115 37.1 32.4 115 OLD BATTLE 10000 35.2 34.6 102 39.8 38.8 103 SAGE CREEK BASIN 7850 2.5 1.2 208* 14.0 16.0 88 SANDSTONE RS 8150 5.0 6.7 75 19.3 20.6 94 WHISKEY PARK 8950 37.1 26.1 142 42.8 31.1 138 ----- ----- Basin Index (%) 112 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.8 11.3 131 15.5 15.0 103 BLIND BULL SUM 8650 37.5 23.7 158 24.5 21.1 116 EAST RIM DIVIDE 7930 11.9 8.4 142 16.5 12.7 130 ELKHART PARK G.S. 9400 18.4 11.6 159 18.1 14.8 122 GROS VENTRE SUMMIT 8750 14.8 11.8 125 15.7 14.4 109 GUNSIGHT PASS 9820 20.6 13.0 158 20.5 15.9 129 KENDALL R.S. 7740 17.5 5.2 337 23.7 15.4 154 LOOMIS PARK 8240 22.9 11.3 203 26.2 18.7 140 NEW FORK LAKE 8340 12.7 6.8 187 13.9 11.9 117 POCKET CREEK 9360 12.8 -M * 13.4 -M * SNIDER BASIN 8060 13.8 9.7 142 20.3 15.4 132 SPRING CREEK DIVIDE 9000 38.1 24.3 157 34.5 25.9 133 TRIPLE PEAK 8500 33.2 18.2 182 39.1 27.6 142 ----- ----- Basin Index (%) 165 129 LOWER GREEN RIVER BLACKS FORK JCT 8870 3.4 -M * 15.2 -M * BUCK PASTURE 9700 11.9 -M * 19.8 -M * EF BLACKS FORK GS 9360 5.9 -M * 11.6 -M * HAMS FORK 7840 9.5 3.7 257 15.0 12.9 116 HEWINTA 9519 6.0 5.3 113 16.2 15.9 102 HICKERSON PARK 9145 .0 4.7 0 9.5 11.8 81 HOLE-IN-ROCK 9150 .0 3.3 0 10.9 11.3 96 INDIAN CREEK 9425 32.2 23.5 137 28.4 24.7 115 KELLEY R.S. 8180 15.9 11.8 135 21.6 19.9 109 SPIRIT LK 10235 8.3 -M * 15.7 -M * STEEL CREEK PARK 10200 21.9 16.9 130 18.6 18.8 99 ----- ----- Basin Index (%) 124 104 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 14.3 -M * BUG LAKE 7950 20.2 15.7 129 22.2 21.4 104 BURTS MILLER RANCH 8000 .0 -M * 7.8 -M * CHALK CREEK #1 8993 20.7 24.6 84 26.0 28.1 93 HAYDEN FORK 9212 9.5 9.7 98 24.0 23.5 102 KELLEY R.S. 8180 15.9 11.8 135 21.6 19.9 109 LILY LAKE 9156 10.7 9.8 109 17.4 19.3 90 MONTE CRISTO 8960 24.0 27.1 89 27.9 28.9 97 SALT RIVER SUMMIT 7760 13.9 8.1 172 20.6 18.2 113 ----- ----- Basin Index (%) 108 100 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.