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 SATURDAY: MARCH 22 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 23.4 14.7 159 24.0 19.2 125 BLACK BEAR 8170 37.4 32.9 114 34.5 34.8 99 BLIND BULL SUM 8650 34.8 20.7 168 22.4 17.8 126 COTTONWOOD CREEK 7670 29.6 20.2 147 32.2 22.2 145 EAST RIM DIVIDE 7930 16.9 9.6 176 14.7 10.6 139 GRAND TARGHEE 9260 46.3 33.2 139 34.6 27.2 127 GRANITE CREEK 6770 23.2 14.8 157 23.2 18.2 127 GRASSY LAKE 7265 36.5 29.6 123 34.9 32.9 106 GROS VENTRE SUMMIT 8750 14.2 11.8 120 14.4 11.5 125 GUNSIGHT PASS 9820 19.6 12.2 161 18.0 12.2 148 LEWIS LAKE DIVIDE 7850 34.1 28.0 122 -M 32.4 * PHILLIPS BENCH 8200 32.9 22.6 146 32.0 25.5 125 SALT RIVER SUMMIT 7760 17.5 12.1 145 18.4 15.1 122 SNAKE RIVER STATION 6920 20.2 15.4 131 23.1 20.6 112 SPRING CREEK DIVIDE 9000 33.9 21.5 158 31.2 21.6 144 THUMB DIVIDE 7980 16.3 14.3 114 15.0 16.6 90 TOGWOTEE PASS 9580 30.0 20.8 144 -M 21.9 * TWO OCEAN PLATEAU 9240 36.6 24.2 151 -M 24.7 * WILLOW CREEK 8380 37.9 25.3 150 38.4 30.2 127 YOUNTS PEAK 8350 -M 13.6 * -M 14.3 * ----- ----- Basin Index (%) 141 122 MADISON-GALLATIN BLACK BEAR 8170 37.4 32.9 114 34.5 34.8 99 CANYON 7870 13.4 11.8 114 14.9 14.7 101 MADISON PLATEAU 7750 21.5 20.2 106 21.8 23.8 92 WEST YELLOWSTONE 6700 12.7 10.0 127 13.8 12.8 108 WHISKEY CREEK 6800 15.4 14.3 108 18.2 18.3 99 ----- ----- Basin Index (%) 113 99 YELLOWSTONE BEARTOOTH LAKE 9360 28.8 19.7 146 -M 17.9 * BURNT MTN 5880 9.4 4.7 200 16.7 11.0 152 CANYON 7870 13.4 11.8 114 14.9 14.7 101 COLE CREEK 7850 18.5 12.2 152 12.9 10.9 118 EVENING STAR 9200 35.6 22.5 158 -M 24.7 * FISHER CREEK 9100 39.9 28.3 141 35.1 28.8 122 NORTHEAST ENTRANCE 7350 14.2 9.2 154 14.1 11.0 128 PARKER PEAK 9400 28.2 17.8 158 21.6 15.8 137 SYLVAN LAKE 8420 21.8 18.3 119 24.8 20.1 123 THUMB DIVIDE 7980 16.3 14.3 114 15.0 16.6 90 TWO OCEAN PLATEAU 9240 36.6 24.2 151 -M 24.7 * WHITE MILL 8700 30.7 20.2 152 26.3 21.4 123 WOLVERINE 7650 14.2 8.9 160 15.2 11.1 137 ----- ----- Basin Index (%) 145 122 WIND RIVER BURROUGHS CREEK 8750 -M 12.4 * -M 14.4 * CASTLE CREEK 8400 10.1 -M * 11.9 -M * COLD SPRINGS 9630 9.3 6.5 143 12.7 8.6 148 DEER PARK 9700 -M 13.7 * 17.9 17.4 103 HOBBS PARK 10100 14.4 12.1 119 12.7 11.3 112 KIRWIN 9550 17.7 8.5 208 16.3 10.1 161 LITTLE WARM 9370 13.8 9.4 147 16.1 11.3 142 OWL CREEK 8975 6.9 4.6 150 6.8 5.1 133 SOUTH PASS 9040 15.6 14.2 110 14.4 15.5 93 ST. LAWRENCE ALT 8620 4.5 6.3 71 7.7 7.6 101 TOGWOTEE PASS 9580 30.0 20.8 144 -M 21.9 * TOWNSEND CREEK 8700 7.4 8.4 88 8.5 10.2 83 ----- ----- Basin Index (%) 132 116 BIGHORN BASIN BALD MTN. 9380 22.7 16.6 137 17.3 15.0 115 BEAR TRAP MEADOW 8200 9.7 5.2 187 9.8 7.2 136 BONE SPRINGS DIV 9350 19.2 14.2 135 14.9 13.6 110 GRAVE SPRINGS 8550 11.2 8.3 135 11.2 9.1 123 KIRWIN 9550 17.7 8.5 208 16.3 10.1 161 MARQUETTE 8760 12.7 -M * 11.6 -M * MIDDLE POWDER 7760 14.9 10.1 148 12.1 10.2 119 OWL CREEK 8975 6.9 4.6 150 6.8 5.1 133 POWDER RIVER PASS 9480 14.4 9.3 155 15.2 11.0 138 SHELL CREEK 9580 17.8 13.0 137 15.1 12.0 126 TIMBER CREEK 7950 5.8 4.1 141 7.7 6.2 124 ----- ----- Basin Index (%) 149 127 SHOSHONE RIVER BLACKWATER 9780 29.4 21.0 140 26.3 18.3 144 EVENING STAR 9200 35.6 22.5 158 -M 24.7 * MARQUETTE 8760 12.7 -M * 11.6 -M * SYLVAN ROAD 7120 14.7 10.5 140 19.2 15.2 126 YOUNTS PEAK 8350 -M 13.6 * -M 14.3 * ----- ----- Basin Index (%) 148 136* POWDER RIVER BEAR TRAP MEADOW 8200 9.7 5.2 187 9.8 7.2 136 CLOUD PEAK RESERVOIR 9860 19.2 13.1 147 16.7 11.4 146 GRAVE SPRINGS 8550 11.2 8.3 135 11.2 9.1 123 HANSEN SAWMILL 8360 9.0 5.8 155 11.0 7.3 151 MIDDLE POWDER 7760 14.9 10.1 148 12.1 10.2 119 POWDER RIVER PASS 9480 14.4 9.3 155 15.2 11.0 138 SOLDIER PARK 8720 11.8 -M * 10.4 -M * ----- ----- Basin Index (%) 151 135 TONGUE RIVER BIG GOOSE 7990 11.3 8.0 141 13.3 9.4 141 BONE SPRINGS DIV 9350 19.2 14.2 135 14.9 13.6 110 BURGESS JUNCTION 7880 14.0 9.7 144 14.5 10.6 137 DOME LAKE 8880 14.1 10.4 136 13.0 11.7 111 LITTLE GOOSE 8870 12.9 -M * 15.4 -M * SUCKER CREEK 8880 16.4 11.0 149 17.6 12.4 142 TIE CREEK 6870 8.6 5.1 169 13.5 9.9 136 ----- ----- Basin Index (%) 143 128 BELLE FOURCHE COLE CANYON 5910 7.5 5.6 134 13.2 8.0 165 ----- ----- Basin Index (%) 134 165 CHEYENNE RIVER BASIN BLIND PARK 6890 8.7 7.2 121 15.7 10.6 148 NORTH RAPID CREEK 6130 9.3 6.6 141 14.3 8.7 164 ----- ----- Basin Index (%) 130 155 UPPER N. PLATTE ARAPAHO RIDGE 10960 25.1 18.1 139 24.8 19.8 125 BLACKHALL MTN 9820 35.0 -M * 27.9 -M * COLUMBINE 9160 33.2 22.1 150 -M 23.2 * DIVIDE PEAK 8880 18.2 17.9 102 20.9 19.3 108 JOE WRIGHT 10120 21.2 19.3 110 29.2 23.1 126 LAPRELE CREEK 8375 8.9 9.3 96 10.5 10.9 96 MED BOW 10500 9.6 -M * 34.3 -M * NORTH FRENCH CREEK 10130 32.9 25.8 128 32.2 23.9 135 NEVER SUMMER 10280 22.9 18.0 127 17.2 -M * OLD BATTLE 10000 31.6 26.8 118 34.4 31.8 108 RAWAH 9020 13.4 9.7 138 16.1 12.4 130 SAGE CREEK BASIN 7850 12.1 11.5 105 11.5 13.0 88 SAND LAKE 10050 31.7 25.1 126 30.4 21.9 139 SOUTH BRUSH CREEK 8440 11.9 11.2 106 13.9 13.5 103 TOWER 10500 48.0 40.5 119 -M 36.1 * WEBBER SPRINGS 9250 24.7 21.3 116 26.7 24.1 111 WILLOW CREEK PASS 9540 13.5 11.0 123 13.5 11.8 114 ZIRKEL 9340 39.2 25.6 153 -M 25.6 * ----- ----- Basin Index (%) 124 117 SWEETWATER DEER PARK 9700 -M 13.7 * 17.9 17.4 103 LARSEN CREEK 9000 13.0 11.3 115 15.0 -M * SOUTH PASS 9040 15.6 14.2 110 14.4 15.5 93 ----- ----- Basin Index (%) 112 98 LOWER N. PLATTE CASPER MTN. 7900 17.0 12.5 136 14.7 13.0 113 LAPRELE CREEK 8375 8.9 9.3 96 10.5 10.9 96 RENO HILL 8400 16.9 12.2 139 18.8 13.2 142 WINDY PEAK 7900 8.7 7.3 119 11.2 9.2 122 ----- ----- Basin Index (%) 125 119 LARAMIE RIVER BROOKLYN LAKE 10240 29.7 17.9 166 26.8 18.7 143 CINNABAR PARK 9574 22.0 18.4 120 27.6 21.6 128 CROW CREEK 8330 6.8 6.9 99 10.8 9.1 119 DEADMAN HILL 10220 23.3 14.1 165 21.9 15.2 144 RAWAH 9020 13.4 9.7 138 16.1 12.4 130 ROACH 9700 19.7 14.2 139 22.3 17.0 131 ----- ----- Basin Index (%) 142 134 S. PLATTE BLACK MOUNTAIN 8920 11.8 -M * -M -M * CROW CREEK 8330 6.8 6.9 99 10.8 9.1 119 DEADMAN HILL 10220 23.3 14.1 165 21.9 15.2 144 ----- ----- Basin Index (%) 143 135 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.0 11.3 106 15.8 13.7 115 DIVIDE PEAK 8880 18.2 17.9 102 20.9 19.3 108 ELK RIVER 8700 20.6 17.4 118 20.5 18.1 113 LITTLE SNAKE RIVER 8915 29.5 21.3 138 32.6 26.7 122 OLD BATTLE 10000 31.6 26.8 118 34.4 31.8 108 SAGE CREEK BASIN 7850 12.1 11.5 105 11.5 13.0 88 SANDSTONE RS 8150 11.3 12.6 90 16.7 16.8 99 WHISKEY PARK 8950 38.3 24.5 156 36.3 25.2 144 ----- ----- Basin Index (%) 121 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.1 11.8 128 14.2 11.9 119 BLIND BULL SUM 8650 34.8 20.7 168 22.4 17.8 126 EAST RIM DIVIDE 7930 16.9 9.6 176 14.7 10.6 139 ELKHART PARK G.S. 9400 16.9 10.9 155 15.9 11.9 134 GROS VENTRE SUMMIT 8750 14.2 11.8 120 14.4 11.5 125 GUNSIGHT PASS 9820 19.6 12.2 161 18.0 12.2 148 KENDALL R.S. 7740 22.3 11.4 196 22.2 13.0 171 LOOMIS PARK 8240 23.9 13.6 176 23.5 15.7 150 NEW FORK LAKE 8340 15.5 9.4 165 13.2 9.8 135 POCKET CREEK 9360 12.4 -M * 12.2 -M * SNIDER BASIN 8060 19.5 11.1 176 18.8 12.9 146 SPRING CREEK DIVIDE 9000 33.9 21.5 158 31.2 21.6 144 TRIPLE PEAK 8500 34.0 19.8 172 35.3 23.0 153 ----- ----- Basin Index (%) 163 142 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.9 -M * 12.2 -M * BUCK PASTURE 9700 13.6 -M * 15.1 -M * EF BLACKS FORK GS 9360 9.3 -M * 9.3 -M * HAMS FORK 7840 15.9 10.4 153 13.2 10.3 128 HEWINTA 9519 10.1 9.9 102 12.7 12.5 102 HICKERSON PARK 9145 7.7 6.7 115 8.3 9.0 92 HOLE-IN-ROCK 9150 5.8 6.8 85 8.4 8.4 100 INDIAN CREEK 9425 31.0 21.6 144 25.2 20.4 124 KELLEY R.S. 8180 18.2 13.7 133 19.9 16.4 121 SPIRIT LK 10235 8.8 -M * 12.1 -M * STEEL CREEK PARK 10200 17.0 13.6 125 14.7 14.5 101 ----- ----- Basin Index (%) 128 112 UPPER BEAR RIVER BEAR RIVER RS 8777 9.5 -M * 11.3 -M * BUG LAKE 7950 21.7 16.9 128 18.8 17.6 107 BURTS MILLER RANCH 8000 7.0 -M * 6.4 -M * CHALK CREEK #1 8993 20.8 21.6 96 20.6 22.4 92 HAYDEN FORK 9212 15.3 14.4 106 18.7 18.8 99 KELLEY R.S. 8180 18.2 13.7 133 19.9 16.4 121 LILY LAKE 9156 12.9 11.5 112 13.9 15.2 91 MONTE CRISTO 8960 25.4 24.7 103 23.3 23.4 100 SALT RIVER SUMMIT 7760 17.5 12.1 145 18.4 15.1 122 ----- ----- Basin Index (%) 115 104 ----------------------------------------------------------------------------- -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.