Supercell over Laramie
WRDS/SCO may be working remotely so there could be a slight delay returning phone calls. Please email wrds@uwyo.edu if you are in need of information and we will respond as soon as possible

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 12 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 25.2 17.3 146 27.6 22.7 122 COTTONWOOD CREEK 7670 31.8 24.1 132 39.0 29.3 133 GRAND TARGHEE 9260 53.4 -M * 40.3 -M * GRANITE CREEK 6770 24.7 17.5 141 26.8 20.9 128 GRASSY LAKE 7265 44.3 37.1 119 45.6 38.1 120 GROS VENTRE SUMMIT 8750 17.4 14.6 119 17.5 13.8 127 GUNSIGHT PASS 9820 21.1 -M * -M -M * LEWIS LAKE DIVIDE 7850 46.9 36.7 128 -M 38.9 * PHILLIPS BENCH 8200 37.1 30.4 122 36.8 30.8 119 SALT RIVER SUMMIT 7760 19.4 14.7 132 24.2 20.0 121 SNAKE RIVER STATION 6920 -M 18.1 * 29.5 23.7 124 SPRING CREEK DIVIDE 9000 39.3 28.3 139 35.9 28.1 128 THUMB DIVIDE 7980 25.3 19.0 133 23.0 20.2 114 TOGWOTEE PASS 9580 33.7 26.4 128 34.9 26.4 132 TWO OCEAN PLATEAU 9240 -M 30.2 * -M 29.5 * WILLOW CREEK 8380 42.1 31.7 133 43.7 34.4 127 ----- ----- Basin wide percent of average 130 125 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 30.2 25.2 120 29.0 21.5 135 BLACK BEAR 8170 52.6 40.8 129 48.0 42.8 112 CANYON 7870 19.7 14.1 140 21.2 16.4 129 FISHER CREEK 9100 46.4 36.8 126 44.1 38.7 114 MADISON PLATEAU 7750 33.6 26.1 129 35.0 28.5 123 NORTHEAST ENTRANCE 7350 16.1 11.0 146 17.8 13.5 132 PARKER PEAK 9400 33.6 23.2 145 29.1 17.5 166 SYLVAN LAKE 8420 28.6 24.0 119 31.9 22.4 142 THUMB DIVIDE 7980 25.3 19.0 133 23.0 20.2 114 TWO OCEAN PLATEAU 9240 -M 30.2 * -M 29.5 * WHISKEY CREEK 6800 22.7 17.8 128 25.9 22.4 116 WHITE MILL 8700 32.5 25.7 126 32.5 28.7 113 WOLVERINE 7650 16.8 11.4 147 16.7 13.7 122 ----- ----- Basin wide percent of average 130 124 WIND RIVER BURROUGHS CREEK 8750 18.9 15.2 124 19.7 17.4 113 CASTLE CREEK 8400 7.7 -M * 9.5 -M * COLD SPRINGS 9630 9.8 7.8 126 10.8 11.8 92 DEER PARK 9700 20.6 17.0 121 24.1 23.7 102 HOBBS PARK 10100 17.9 16.6 108 15.9 14.3 111 LITTLE WARM 9370 14.3 12.6 113 14.9 14.5 103 SOUTH PASS 9040 18.4 17.7 104 16.1 20.0 81 ST. LAWRENCE ALT 8620 5.9 7.5 79 9.4 9.9 95 TOGWOTEE PASS 9580 33.7 26.4 128 34.9 26.4 132 TOWNSEND CREEK 8700 9.9 9.7 102 12.9 13.0 99 ----- ----- Basin wide percent of average 114 105 BIGHORN BASIN BALD MTN. 9380 26.2 21.4 122 21.3 18.8 113 BEAR TRAP MEADOW 8200 9.5 4.9 194 9.6 9.2 104 BLACKWATER 9780 31.4 26.4 119 29.9 22.2 135 BONE SPRINGS DIV 9350 22.5 17.4 129 18.5 15.9 116 EVENING STAR 9200 37.3 31.7 118 39.4 27.1 145 GRAVE SPRINGS 8550 9.6 10.5 91 9.9 11.0 90 KIRWIN 9550 14.6 12.2 120 15.9 12.2 130 MARQUETTE 8760 5.1 -M * 8.1 11.1 73 MIDDLE POWDER 7760 11.0 13.6 81 11.9 13.5 88 OWL CREEK 8975 7.0 5.4 130 7.5 6.6 114 POWDER RIVER PASS 9480 16.8 11.8 142 19.5 13.5 144 SHELL CREEK 9580 19.4 15.9 122 17.5 14.5 121 SYLVAN LAKE 8420 28.6 24.0 119 31.9 22.4 142 SYLVAN ROAD 7120 18.1 12.7 143 23.7 18.8 126 TIMBER CREEK 7950 6.0 5.8 103 7.2 8.3 87 YOUNTS PEAK 8350 21.3 18.0 118 18.7 17.2 109 ----- ----- Basin wide percent of average 121 120 SHOSHONE RIVER BLACKWATER 9780 31.4 26.4 119 29.9 22.2 135 EVENING STAR 9200 37.3 31.7 118 39.4 27.1 145 KIRWIN 9550 14.6 12.2 120 15.9 12.2 130 MARQUETTE 8760 5.1 -M * 8.1 11.1 73 SYLVAN LAKE 8420 28.6 24.0 119 31.9 22.4 142 SYLVAN ROAD 7120 18.1 12.7 143 23.7 18.8 126 YOUNTS PEAK 8350 21.3 18.0 118 18.7 17.2 109 ----- ----- Basin wide percent of average 121 128 POWDER-TONGUE BEAR TRAP MEADOW 8200 9.5 4.9 194 9.6 9.2 104 BIG GOOSE 7990 10.0 12.1 83 11.7 10.1 116 BONE SPRINGS DIV 9350 22.5 17.4 129 18.5 15.9 116 BURGESS JUNCTION 7880 12.5 12.9 97 13.3 13.3 100 CLOUD PEAK RESERVOIR 9860 18.3 14.9 123 17.3 14.3 121 DOME LAKE 8880 15.5 13.7 113 14.9 14.4 103 GRAVE SPRINGS 8550 9.6 10.5 91 9.9 11.0 90 HANSEN SAWMILL 8360 8.2 6.3 130 9.3 9.1 102 LITTLE GOOSE 8870 11.4 -M * 15.9 -M * MIDDLE POWDER 7760 11.0 13.6 81 11.9 13.5 88 POWDER RIVER PASS 9480 16.8 11.8 142 19.5 13.5 144 SOLDIER PARK 8720 9.5 -M * 10.4 -M * SUCKER CREEK 8880 15.0 13.2 114 16.6 14.9 111 TIE CREEK 6870 7.0 5.5 127 11.7 11.1 105 ----- ----- Basin wide percent of average 114 109 BELLE FOURCHE BLIND PARK 6890 9.0 8.0 113 17.5 12.0 146 COLE CANYON 5910 7.1 7.2 99 12.8 7.4 173 NORTH RAPID CREEK 6130 6.9 8.9 78 14.8 9.3 159 ----- ----- Basin wide percent of average 95 157 UPPER N. PLATTE RIVER CINNABAR PARK 9574 27.3 17.8 153 35.3 21.2 167 COLUMBINE 9160 36.0 24.9 145 38.0 26.8 142 DIVIDE PEAK 8880 27.1 20.8 130 31.7 22.1 143 ELK RIVER 8700 27.2 20.0 136 29.2 20.9 140 JOE WRIGHT 10120 36.1 23.2 156 38.7 26.7 145 NORTH FRENCH CREEK 10130 51.6 32.0 161 -M 26.4 * OLD BATTLE 10000 48.0 34.2 140 46.5 36.6 127 SAGE CREEK BASIN 7850 22.2 12.1 183 21.2 12.8 166 SOUTH BRUSH CREEK 8440 20.7 13.4 154 24.7 17.7 140 TOWER 10500 60.5 48.8 124 47.5 41.0 116 WEBBER SPRINGS 9250 34.3 26.2 131 39.6 28.5 139 WILLOW CREEK PASS 9540 21.9 13.3 165 19.8 13.9 142 ----- ----- Basin wide percent of average 144 139 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 34.6 25.9 134 33.4 23.9 140 CASPER MTN. 7900 11.9 16.3 73 15.7 16.2 97 DEADMAN HILL 10220 22.5 17.9 126 23.8 18.3 130 DEER PARK 9700 20.6 17.0 121 24.1 23.7 102 LAPRELE CREEK 8375 14.1 10.6 133 15.7 13.9 113 RENO HILL 8400 16.2 15.7 103 19.0 16.8 113 ROACH 9700 22.1 18.3 121 25.5 20.0 128 SAND LAKE 10050 41.4 34.6 120 -M 26.0 * SOUTH PASS 9040 18.4 17.7 104 16.1 20.0 81 WINDY PEAK 7900 11.0 8.3 133 14.7 11.5 128 ----- ----- Basin wide percent of average 117 114 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 9.3 * 17.3 16.9 102 DIVIDE PEAK 8880 27.1 20.8 130 31.7 22.1 143 OLD BATTLE 10000 48.0 34.2 140 46.5 36.6 127 SANDSTONE RS 8150 20.5 13.8 149 -M 19.9 * WHISKEY PARK 8950 -M 30.7 * -M 30.5 * ----- ----- Basin wide percent of average 139 126 UPPER GREEN RIVER BIG SANDY OPENING 9080 17.4 15.3 114 17.5 14.3 122 BLIND BULL SUM 8650 38.4 28.9 133 26.1 23.6 111 EAST RIM DIVIDE 7930 17.6 13.9 127 15.4 12.8 120 ELKHART PARK G.S. 9400 16.0 14.0 114 15.7 14.3 110 GROS VENTRE SUMMIT 8750 17.4 14.6 119 17.5 13.8 127 GUNSIGHT PASS 9820 21.1 -M * -M -M * KENDALL R.S. 7740 15.0 13.9 108 17.3 15.4 112 LOOMIS PARK 8240 23.4 17.3 135 23.6 18.4 128 NEW FORK LAKE 8340 14.2 11.5 123 13.0 12.1 107 POCKET CREEK 9360 14.7 -M * 16.4 -M * SNIDER BASIN 8060 22.4 15.0 149 21.0 17.2 122 SPRING CREEK DIVIDE 9000 39.3 28.3 139 35.9 28.1 128 TRIPLE PEAK 8500 37.9 25.9 146 38.0 26.4 144 ----- ----- Basin wide percent of average 130 123 LOWER GREEN RIVER HAMS FORK 7840 17.3 10.5 165 16.7 13.1 127 HEWINTA 9519 13.9 12.5 111 19.1 15.9 120 HICKERSON PARK 9145 7.8 8.4 93 11.7 8.7 134 HOLE-IN-ROCK 9150 9.6 7.4 130 13.1 8.3 158 INDIAN CREEK 9425 35.3 29.5 120 30.0 27.2 110 KELLEY R.S. 8180 23.6 17.4 136 26.4 21.7 122 STEEL CREEK PARK 10200 20.0 17.0 118 22.5 17.9 126 ----- ----- Basin wide percent of average 124 124 UPPER BEAR RIVER BUG LAKE 7950 33.4 21.8 153 32.6 20.5 159 HAYDEN FORK 9212 26.7 16.8 159 32.9 22.7 145 KELLEY R.S. 8180 23.6 17.4 136 26.4 21.7 122 LILY LAKE 9156 24.5 14.6 168 25.1 19.0 132 MONTE CRISTO 8960 43.0 30.6 141 41.0 27.3 150 SALT RIVER SUMMIT 7760 19.4 14.7 132 24.2 20.0 121 TRIAL LAKE 9992 41.1 26.2 157 37.7 26.7 141 ----- ----- Basin wide percent of average 149 139 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average 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 Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average 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. Reference period for average conditions is 1971-2000. Provisional data, subject to revision. ---------------------------------------------------------------------------- -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.