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 FRIDAY: MARCH 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 23.3 14.7 159 24.2 19.8 122 BLACK BEAR 8170 38.6 35.0 110 36.3 35.9 101 BLIND BULL SUM 8650 35.3 21.5 164 22.7 18.4 123 COTTONWOOD CREEK 7670 30.2 20.8 145 33.0 23.1 143 EAST RIM DIVIDE 7930 17.4 9.8 178 15.1 11.1 136 GRAND TARGHEE 9260 47.3 35.0 135 35.0 28.5 123 GRANITE CREEK 6770 23.5 14.9 158 23.3 18.8 124 GRASSY LAKE 7265 38.0 31.0 123 36.0 34.0 106 GROS VENTRE SUMMIT 8750 14.3 12.4 115 14.3 12.0 119 GUNSIGHT PASS 9820 19.9 13.0 153 18.3 12.8 143 LEWIS LAKE DIVIDE 7850 35.0 29.2 120 -M 33.4 * PHILLIPS BENCH 8200 33.4 23.6 142 32.5 26.5 123 SALT RIVER SUMMIT 7760 17.6 12.6 140 18.7 15.7 119 SNAKE RIVER STATION 6920 -M 15.9 * -M 21.3 * SPRING CREEK DIVIDE 9000 34.4 22.3 154 31.4 22.5 140 THUMB DIVIDE 7980 17.3 15.1 115 15.8 17.4 91 TOGWOTEE PASS 9580 30.6 21.4 143 30.4 22.8 133 TWO OCEAN PLATEAU 9240 37.6 25.2 149 -M 25.6 * WILLOW CREEK 8380 39.5 26.6 148 39.3 31.4 125 YOUNTS PEAK 8350 -M 13.9 * -M 14.8 * ----- ----- Basin Index (%) 139 122 MADISON-GALLATIN BLACK BEAR 8170 38.6 35.0 110 36.3 35.9 101 CANYON 7870 13.9 12.2 114 15.4 15.1 102 MADISON PLATEAU 7750 22.4 21.0 107 22.5 24.6 91 WEST YELLOWSTONE 6700 12.7 10.1 126 14.5 13.1 111 WHISKEY CREEK 6800 16.1 14.7 110 18.7 19.0 98 ----- ----- Basin Index (%) 112 100 YELLOWSTONE BEARTOOTH LAKE 9360 29.6 20.5 144 27.7 18.4 151 BURNT MTN 5880 10.4 4.6 226 17.7 11.6 153 CANYON 7870 13.9 12.2 114 15.4 15.1 102 COLE CREEK 7850 20.4 12.9 158 14.3 11.6 123 EVENING STAR 9200 36.5 23.6 155 37.2 25.5 146 FISHER CREEK 9100 41.0 29.2 140 35.8 29.8 120 NORTHEAST ENTRANCE 7350 14.5 9.7 149 14.6 11.4 128 PARKER PEAK 9400 29.2 18.4 159 26.5 16.4 162 SYLVAN LAKE 8420 22.4 18.8 119 25.7 20.8 124 THUMB DIVIDE 7980 17.3 15.1 115 15.8 17.4 91 TWO OCEAN PLATEAU 9240 37.6 25.2 149 -M 25.6 * WHITE MILL 8700 31.7 21.2 150 27.1 22.2 122 WOLVERINE 7650 14.7 8.9 165 16.0 11.4 140 ----- ----- Basin Index (%) 145 129 WIND RIVER BURROUGHS CREEK 8750 -M 12.9 * -M 14.9 * CASTLE CREEK 8400 10.3 -M * 12.1 -M * COLD SPRINGS 9630 9.4 7.0 134 12.8 9.1 141 DEER PARK 9700 16.2 14.3 113 18.4 18.0 102 HOBBS PARK 10100 14.5 12.9 112 12.7 12.0 106 KIRWIN 9550 18.0 9.0 200 16.5 10.6 156 LITTLE WARM 9370 14.2 10.0 142 16.4 11.9 138 OWL CREEK 8975 7.1 5.0 142 7.1 5.4 131 SOUTH PASS 9040 15.9 14.5 110 14.8 16.1 92 ST. LAWRENCE ALT 8620 4.9 6.6 74 8.4 8.1 104 TOGWOTEE PASS 9580 30.6 21.4 143 30.4 22.8 133 TOWNSEND CREEK 8700 7.5 8.8 85 8.8 10.8 81 ----- ----- Basin Index (%) 126 117 BIGHORN BASIN BALD MTN. 9380 24.0 17.5 137 18.4 15.7 117 BEAR TRAP MEADOW 8200 11.2 5.1 220 11.0 7.6 145 BONE SPRINGS DIV 9350 20.4 14.9 137 16.2 14.2 114 GRAVE SPRINGS 8550 12.5 8.5 147 12.3 9.6 128 KIRWIN 9550 18.0 9.0 200 16.5 10.6 156 MARQUETTE 8760 13.5 -M * 12.2 -M * MIDDLE POWDER 7760 16.9 10.7 158 13.6 10.6 128 OWL CREEK 8975 7.1 5.0 142 7.1 5.4 131 POWDER RIVER PASS 9480 15.4 9.7 159 16.3 11.5 142 SHELL CREEK 9580 18.8 13.9 135 16.0 12.6 127 TIMBER CREEK 7950 6.4 4.4 145 7.8 6.6 118 ----- ----- Basin Index (%) 153 130 SHOSHONE RIVER BLACKWATER 9780 30.2 21.5 140 27.1 19.0 143 EVENING STAR 9200 36.5 23.6 155 37.2 25.5 146 MARQUETTE 8760 13.5 -M * 12.2 -M * SYLVAN ROAD 7120 14.3 11.0 130 19.7 15.7 125 YOUNTS PEAK 8350 -M 13.9 * -M 14.8 * ----- ----- Basin Index (%) 144 140 POWDER RIVER BEAR TRAP MEADOW 8200 11.2 5.1 220 11.0 7.6 145 CLOUD PEAK RESERVOIR 9860 20.3 13.6 149 17.9 12.0 149 GRAVE SPRINGS 8550 12.5 8.5 147 12.3 9.6 128 HANSEN SAWMILL 8360 9.9 6.1 162 12.0 7.8 154 MIDDLE POWDER 7760 16.9 10.7 158 13.6 10.6 128 POWDER RIVER PASS 9480 15.4 9.7 159 16.3 11.5 142 SOLDIER PARK 8720 12.9 -M * 11.3 -M * ----- ----- Basin Index (%) 161 141 TONGUE RIVER BIG GOOSE 7990 12.2 8.4 145 14.2 9.8 145 BONE SPRINGS DIV 9350 20.4 14.9 137 16.2 14.2 114 BURGESS JUNCTION 7880 14.7 10.7 137 15.2 11.2 136 DOME LAKE 8880 15.3 11.1 138 14.0 12.3 114 LITTLE GOOSE 8870 13.7 -M * 16.4 -M * SUCKER CREEK 8880 17.2 11.2 154 18.4 13.0 142 TIE CREEK 6870 9.2 5.4 170 14.4 10.3 140 ----- ----- Basin Index (%) 144 131 BELLE FOURCHE COLE CANYON 5910 7.1 5.7 125 13.7 8.4 163 ----- ----- Basin Index (%) 125 163 CHEYENNE RIVER BASIN BLIND PARK 6890 8.5 7.1 120 16.0 10.9 147 NORTH RAPID CREEK 6130 9.0 6.7 134 14.6 9.0 162 ----- ----- Basin Index (%) 127 154 UPPER N. PLATTE ARAPAHO RIDGE 10960 26.1 19.1 137 25.5 20.6 124 BLACKHALL MTN 9820 36.1 -M * 28.1 -M * COLUMBINE 9160 34.6 22.1 157 -M 23.8 * DIVIDE PEAK 8880 18.6 18.9 98 21.5 19.9 108 JOE WRIGHT 10120 22.1 19.8 112 30.2 24.0 126 LAPRELE CREEK 8375 9.5 9.4 101 10.8 11.4 95 MED BOW 10500 8.4 -M * 34.6 -M * NORTH FRENCH CREEK 10130 34.6 27.1 128 32.3 25.0 129 NEVER SUMMER 10280 24.1 18.9 128 18.3 -M * OLD BATTLE 10000 32.3 28.4 114 34.7 32.7 106 RAWAH 9020 14.0 10.1 139 16.8 13.0 129 SAGE CREEK BASIN 7850 12.3 12.3 100 11.8 13.4 88 SAND LAKE 10050 32.8 26.4 124 30.9 22.9 135 SOUTH BRUSH CREEK 8440 12.0 12.0 100 14.2 14.1 101 TOWER 10500 49.5 42.3 117 -M 37.2 * WEBBER SPRINGS 9250 25.4 22.5 113 27.3 24.9 110 WILLOW CREEK PASS 9540 14.5 11.5 126 14.0 12.3 114 ZIRKEL 9340 40.4 26.0 155 -M 26.7 * ----- ----- Basin Index (%) 123 115 SWEETWATER DEER PARK 9700 16.2 14.3 113 18.4 18.0 102 LARSEN CREEK 9000 13.3 11.9 112 15.1 -M * SOUTH PASS 9040 15.9 14.5 110 14.8 16.1 92 ----- ----- Basin Index (%) 112 97 LOWER N. PLATTE CASPER MTN. 7900 17.5 12.8 137 15.1 13.5 112 LAPRELE CREEK 8375 9.5 9.4 101 10.8 11.4 95 RENO HILL 8400 17.6 12.7 139 19.4 14.0 139 WINDY PEAK 7900 9.1 7.7 118 11.6 9.7 120 ----- ----- Basin Index (%) 126 117 LARAMIE RIVER BROOKLYN LAKE 10240 30.4 18.9 161 28.3 19.5 145 CINNABAR PARK 9574 23.1 19.5 118 28.7 22.6 127 CROW CREEK 8330 7.1 6.9 103 11.4 9.8 116 DEADMAN HILL 10220 24.1 14.9 162 22.6 15.9 142 RAWAH 9020 14.0 10.1 139 16.8 13.0 129 ROACH 9700 20.4 14.9 137 23.2 17.8 130 ----- ----- Basin Index (%) 140 133 S. PLATTE BLACK MOUNTAIN 8920 12.4 -M * -M -M * CROW CREEK 8330 7.1 6.9 103 11.4 9.8 116 DEADMAN HILL 10220 24.1 14.9 162 22.6 15.9 142 ----- ----- Basin Index (%) 143 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.0 10.9 101 16.3 14.0 116 DIVIDE PEAK 8880 18.6 18.9 98 21.5 19.9 108 ELK RIVER 8700 21.2 17.9 118 21.5 18.8 114 LITTLE SNAKE RIVER 8915 30.7 22.1 139 33.2 27.6 120 OLD BATTLE 10000 32.3 28.4 114 34.7 32.7 106 SAGE CREEK BASIN 7850 12.3 12.3 100 11.8 13.4 88 SANDSTONE RS 8150 11.7 13.1 89 17.1 17.3 99 WHISKEY PARK 8950 39.7 24.9 159 38.2 26.2 146 ----- ----- Basin Index (%) 120 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.3 12.1 126 14.1 12.4 114 BLIND BULL SUM 8650 35.3 21.5 164 22.7 18.4 123 EAST RIM DIVIDE 7930 17.4 9.8 178 15.1 11.1 136 ELKHART PARK G.S. 9400 17.3 11.6 149 16.0 12.4 129 GROS VENTRE SUMMIT 8750 14.3 12.4 115 14.3 12.0 119 GUNSIGHT PASS 9820 19.9 13.0 153 18.3 12.8 143 KENDALL R.S. 7740 22.1 11.3 196 22.7 13.5 168 LOOMIS PARK 8240 24.6 14.4 171 23.6 16.3 145 NEW FORK LAKE 8340 16.0 10.0 160 13.5 10.2 132 POCKET CREEK 9360 12.5 -M * 12.3 -M * SNIDER BASIN 8060 20.0 11.7 171 18.8 13.3 141 SPRING CREEK DIVIDE 9000 34.4 22.3 154 31.4 22.5 140 TRIPLE PEAK 8500 34.7 20.9 166 36.0 23.8 151 ----- ----- Basin Index (%) 159 138 LOWER GREEN RIVER BLACKS FORK JCT 8870 8.3 -M * 12.9 -M * BUCK PASTURE 9700 14.3 -M * 15.5 -M * EF BLACKS FORK GS 9360 9.7 -M * 9.6 -M * HAMS FORK 7840 16.4 10.6 155 13.3 10.7 124 HEWINTA 9519 10.8 10.2 106 13.5 13.0 104 HICKERSON PARK 9145 7.1 7.1 100 8.4 9.3 90 HOLE-IN-ROCK 9150 6.3 7.0 90 8.7 8.8 99 INDIAN CREEK 9425 31.4 23.0 137 25.6 21.1 121 KELLEY R.S. 8180 18.7 14.5 129 20.0 17.0 118 SPIRIT LK 10235 9.2 -M * 12.4 -M * STEEL CREEK PARK 10200 17.6 14.4 122 15.2 15.1 101 ----- ----- Basin Index (%) 125 110 UPPER BEAR RIVER BEAR RIVER RS 8777 9.3 -M * 11.7 -M * BUG LAKE 7950 22.9 17.7 129 19.5 18.2 107 BURTS MILLER RANCH 8000 7.0 -M * 6.7 -M * CHALK CREEK #1 8993 21.6 22.6 96 21.5 23.5 91 HAYDEN FORK 9212 15.9 14.7 108 19.4 19.6 99 KELLEY R.S. 8180 18.7 14.5 129 20.0 17.0 118 LILY LAKE 9156 13.4 11.8 114 14.5 15.9 91 MONTE CRISTO 8960 26.2 25.4 103 23.9 24.3 98 SALT RIVER SUMMIT 7760 17.6 12.6 140 18.7 15.7 119 ----- ----- Basin Index (%) 114 102 ----------------------------------------------------------------------------- -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.