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 FRIDAY: APRIL 8 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 24.9 17.8 140 26.7 22.3 120 COTTONWOOD CREEK 7670 31.1 24.4 127 38.0 28.8 132 GRAND TARGHEE 9260 51.9 -M * 39.2 -M * GRANITE CREEK 6770 23.9 18.1 132 25.9 20.6 126 GRASSY LAKE 7265 43.2 37.0 117 44.6 37.5 119 GROS VENTRE SUMMIT 8750 15.8 14.6 108 15.9 13.5 118 GUNSIGHT PASS 9820 19.8 -M * 18.6 -M * LEWIS LAKE DIVIDE 7850 45.6 36.5 125 -M 38.3 * PHILLIPS BENCH 8200 36.3 30.1 121 36.0 30.3 119 SALT RIVER SUMMIT 7760 18.9 14.9 127 23.5 19.7 119 SNAKE RIVER STATION 6920 -M 18.7 * 28.9 23.3 124 SPRING CREEK DIVIDE 9000 38.1 27.8 137 35.1 27.6 127 THUMB DIVIDE 7980 24.8 19.3 128 22.2 19.8 112 TOGWOTEE PASS 9580 31.8 26.0 122 33.0 25.8 128 TWO OCEAN PLATEAU 9240 -M 29.6 * -M 29.0 * WILLOW CREEK 8380 40.5 31.4 129 43.3 33.7 128 ----- ----- Basin wide percent of average 126 123 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 29.9 24.5 122 27.6 21.0 131 BLACK BEAR 8170 51.8 40.5 128 -M 42.1 * CANYON 7870 19.5 14.0 139 20.8 16.1 129 FISHER CREEK 9100 45.8 36.3 126 -M 38.0 * MADISON PLATEAU 7750 32.6 26.0 125 34.1 28.0 122 NORTHEAST ENTRANCE 7350 16.1 11.1 145 17.5 13.2 133 PARKER PEAK 9400 32.7 22.7 144 -M 17.1 * SYLVAN LAKE 8420 27.6 23.5 117 31.1 21.9 142 THUMB DIVIDE 7980 24.8 19.3 128 22.2 19.8 112 TWO OCEAN PLATEAU 9240 -M 29.6 * -M 29.0 * WHISKEY CREEK 6800 22.0 17.7 124 25.2 22.0 115 WHITE MILL 8700 32.0 25.3 126 32.0 28.2 113 WOLVERINE 7650 16.7 11.6 144 16.1 13.4 120 ----- ----- Basin wide percent of average 129 123 WIND RIVER BURROUGHS CREEK 8750 18.2 15.0 121 18.9 17.0 111 CASTLE CREEK 8400 7.4 -M * 8.9 -M * COLD SPRINGS 9630 8.7 8.4 104 9.2 11.3 81 DEER PARK 9700 19.7 17.4 113 23.2 23.1 100 HOBBS PARK 10100 16.5 15.9 104 14.4 13.7 105 LITTLE WARM 9370 13.8 12.3 112 14.1 14.1 100 SOUTH PASS 9040 17.8 17.3 103 15.5 19.4 80 ST. LAWRENCE ALT 8620 5.1 7.5 68 8.4 9.5 88 TOGWOTEE PASS 9580 31.8 26.0 122 33.0 25.8 128 TOWNSEND CREEK 8700 9.4 9.5 99 11.8 12.5 94 ----- ----- Basin wide percent of average 109 101 BIGHORN BASIN BALD MTN. 9380 25.3 20.8 122 20.4 18.3 111 BEAR TRAP MEADOW 8200 9.1 5.2 175 8.8 8.8 100 BLACKWATER 9780 30.1 25.7 117 28.6 21.6 132 BONE SPRINGS DIV 9350 21.6 17.1 126 17.7 15.5 114 EVENING STAR 9200 36.5 31.1 117 -M 26.5 * GRAVE SPRINGS 8550 9.2 10.2 90 9.5 10.5 90 KIRWIN 9550 13.7 11.9 115 14.7 11.9 124 MARQUETTE 8760 4.4 -M * 7.2 10.6 68 MIDDLE POWDER 7760 10.6 12.9 82 11.5 13.1 88 OWL CREEK 8975 5.9 5.7 104 6.3 6.4 98 POWDER RIVER PASS 9480 16.3 11.5 142 18.8 13.1 144 SHELL CREEK 9580 18.9 15.5 122 17.0 14.1 121 SYLVAN LAKE 8420 27.6 23.5 117 31.1 21.9 142 SYLVAN ROAD 7120 17.9 12.7 141 23.2 18.4 126 TIMBER CREEK 7950 5.0 5.8 86 6.1 7.9 77 YOUNTS PEAK 8350 20.2 17.7 114 17.5 16.9 104 ----- ----- Basin wide percent of average 118 114 SHOSHONE RIVER BLACKWATER 9780 30.1 25.7 117 28.6 21.6 132 EVENING STAR 9200 36.5 31.1 117 -M 26.5 * KIRWIN 9550 13.7 11.9 115 14.7 11.9 124 MARQUETTE 8760 4.4 -M * 7.2 10.6 68 SYLVAN LAKE 8420 27.6 23.5 117 31.1 21.9 142 SYLVAN ROAD 7120 17.9 12.7 141 23.2 18.4 126 YOUNTS PEAK 8350 20.2 17.7 114 17.5 16.9 104 ----- ----- Basin wide percent of average 119 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 9.1 5.2 175 8.8 8.8 100 BIG GOOSE 7990 9.4 11.7 80 11.2 9.5 118 BONE SPRINGS DIV 9350 21.6 17.1 126 17.7 15.5 114 BURGESS JUNCTION 7880 12.0 12.4 97 12.9 12.9 100 CLOUD PEAK RESERVOIR 9860 17.8 14.4 124 16.4 13.7 120 DOME LAKE 8880 15.0 13.2 114 14.1 14.0 101 GRAVE SPRINGS 8550 9.2 10.2 90 9.5 10.5 90 HANSEN SAWMILL 8360 7.6 6.5 117 8.7 8.7 100 LITTLE GOOSE 8870 10.7 -M * 15.1 -M * MIDDLE POWDER 7760 10.6 12.9 82 11.5 13.1 88 POWDER RIVER PASS 9480 16.3 11.5 142 18.8 13.1 144 SOLDIER PARK 8720 9.2 -M * 10.2 -M * SUCKER CREEK 8880 14.5 12.7 114 15.9 14.4 110 TIE CREEK 6870 7.1 6.1 116 11.2 10.6 106 ----- ----- Basin wide percent of average 112 108 BELLE FOURCHE BLIND PARK 6890 10.0 8.1 123 17.4 11.7 149 COLE CANYON 5910 7.8 7.1 110 12.7 7.1 179 NORTH RAPID CREEK 6130 8.2 8.8 93 14.8 9.0 164 ----- ----- Basin wide percent of average 108 162 UPPER N. PLATTE RIVER CINNABAR PARK 9574 26.5 18.0 147 34.4 20.8 165 COLUMBINE 9160 36.0 25.1 143 37.0 26.3 141 DIVIDE PEAK 8880 24.8 20.6 120 29.7 21.6 138 ELK RIVER 8700 26.5 20.1 132 28.3 20.5 138 JOE WRIGHT 10120 35.1 22.6 155 37.8 26.0 145 NORTH FRENCH CREEK 10130 49.4 31.1 159 -M 25.8 * OLD BATTLE 10000 45.7 33.6 136 46.4 36.0 129 SAGE CREEK BASIN 7850 21.4 11.9 180 20.1 12.5 161 SOUTH BRUSH CREEK 8440 20.3 13.4 151 23.8 17.3 138 TOWER 10500 58.8 47.8 123 47.1 40.1 117 WEBBER SPRINGS 9250 32.5 26.4 123 37.9 27.9 136 WILLOW CREEK PASS 9540 21.2 12.9 164 19.2 13.5 142 ----- ----- Basin wide percent of average 140 138 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 33.4 25.2 133 32.4 23.3 139 CASPER MTN. 7900 11.5 15.7 73 15.0 15.5 97 DEADMAN HILL 10220 22.0 17.4 126 23.4 17.8 131 DEER PARK 9700 19.7 17.4 113 23.2 23.1 100 LAPRELE CREEK 8375 13.9 10.9 128 15.6 13.4 116 RENO HILL 8400 15.7 15.2 103 18.6 16.1 116 ROACH 9700 21.6 18.0 120 24.8 19.5 127 SAND LAKE 10050 40.2 33.9 119 -M 25.4 * SOUTH PASS 9040 17.8 17.3 103 15.5 19.4 80 WINDY PEAK 7900 10.8 8.4 129 14.3 11.2 128 ----- ----- Basin wide percent of average 115 115 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 10.0 * 16.2 16.6 98 DIVIDE PEAK 8880 24.8 20.6 120 29.7 21.6 138 OLD BATTLE 10000 45.7 33.6 136 46.4 36.0 129 SANDSTONE RS 8150 19.0 14.3 133 27.3 19.5 140 WHISKEY PARK 8950 -M 30.7 * -M 29.9 * ----- ----- Basin wide percent of average 131 128 UPPER GREEN RIVER BIG SANDY OPENING 9080 16.7 15.2 110 16.7 14.0 119 BLIND BULL SUM 8650 37.1 28.8 129 25.4 23.2 109 EAST RIM DIVIDE 7930 16.5 13.7 120 14.5 12.6 115 ELKHART PARK G.S. 9400 14.6 13.9 105 14.3 14.0 102 GROS VENTRE SUMMIT 8750 15.8 14.6 108 15.9 13.5 118 GUNSIGHT PASS 9820 19.8 -M * 18.6 -M * KENDALL R.S. 7740 14.6 14.3 102 16.7 15.1 111 LOOMIS PARK 8240 22.3 17.5 127 22.5 18.1 124 NEW FORK LAKE 8340 13.4 11.5 117 12.2 11.9 103 POCKET CREEK 9360 13.6 -M * 15.5 -M * SNIDER BASIN 8060 21.9 15.0 146 20.5 16.9 121 SPRING CREEK DIVIDE 9000 38.1 27.8 137 35.1 27.6 127 TRIPLE PEAK 8500 36.8 25.7 143 37.0 25.9 143 ----- ----- Basin wide percent of average 125 120 LOWER GREEN RIVER HAMS FORK 7840 17.2 11.1 155 16.1 12.8 126 HEWINTA 9519 12.4 12.5 99 18.5 15.4 120 HICKERSON PARK 9145 6.9 8.3 83 10.7 8.4 127 HOLE-IN-ROCK 9150 8.3 7.5 111 12.0 8.0 150 INDIAN CREEK 9425 34.1 29.1 117 29.2 26.7 109 KELLEY R.S. 8180 22.8 17.4 131 25.5 21.3 120 STEEL CREEK PARK 10200 18.8 16.6 113 21.4 17.3 124 ----- ----- Basin wide percent of average 118 121 UPPER BEAR RIVER BUG LAKE 7950 32.8 21.7 151 31.1 20.1 155 HAYDEN FORK 9212 24.8 16.9 147 31.2 22.1 141 KELLEY R.S. 8180 22.8 17.4 131 25.5 21.3 120 LILY LAKE 9156 22.8 14.5 157 23.5 18.5 127 MONTE CRISTO 8960 41.9 30.5 137 39.6 26.8 148 SALT RIVER SUMMIT 7760 18.9 14.9 127 23.5 19.7 119 TRIAL LAKE 9992 38.6 26.0 148 35.4 26.2 135 ----- ----- Basin wide percent of average 143 136 ----------------------------------------------------------------------------- -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.