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 THURSDAY: MARCH 31 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 22.3 18.1 123 24.1 21.6 112 COTTONWOOD CREEK 7670 28.9 24.1 120 35.8 27.6 130 GRAND TARGHEE 9260 48.6 -M * -M -M * GRANITE CREEK 6770 22.9 18.7 122 23.9 20.1 119 GRASSY LAKE 7265 40.6 36.0 113 41.5 36.2 115 GROS VENTRE SUMMIT 8750 14.8 14.3 103 14.4 13.0 111 GUNSIGHT PASS 9820 18.1 -M * 17.3 -M * LEWIS LAKE DIVIDE 7850 41.6 35.7 117 -M 37.0 * PHILLIPS BENCH 8200 33.6 29.1 115 33.0 29.2 113 SALT RIVER SUMMIT 7760 18.2 14.6 125 22.3 18.9 118 SNAKE RIVER STATION 6920 -M 19.2 * 26.7 22.4 119 SPRING CREEK DIVIDE 9000 36.1 26.8 135 33.2 26.6 125 THUMB DIVIDE 7980 22.5 19.2 117 20.5 19.0 108 TOGWOTEE PASS 9580 29.2 25.0 117 30.7 24.7 124 TWO OCEAN PLATEAU 9240 -M 28.2 * -M 27.9 * WILLOW CREEK 8380 37.4 30.5 123 41.3 32.4 127 ----- ----- Basin wide percent of average 119 119 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 26.8 23.5 114 25.6 20.2 127 BLACK BEAR 8170 48.4 39.6 122 44.4 40.7 109 CANYON 7870 17.5 13.9 126 18.7 15.5 121 FISHER CREEK 9100 42.1 35.3 119 40.2 36.6 110 MADISON PLATEAU 7750 30.5 25.4 120 32.0 26.9 119 NORTHEAST ENTRANCE 7350 14.7 11.3 130 15.8 12.7 124 PARKER PEAK 9400 29.5 21.8 135 25.6 16.3 157 SYLVAN LAKE 8420 25.2 22.7 111 28.7 21.0 137 THUMB DIVIDE 7980 22.5 19.2 117 20.5 19.0 108 TWO OCEAN PLATEAU 9240 -M 28.2 * -M 27.9 * WHISKEY CREEK 6800 21.2 17.4 122 24.0 21.1 114 WHITE MILL 8700 28.9 24.5 118 29.1 27.2 107 WOLVERINE 7650 15.0 11.6 129 14.6 12.8 114 ----- ----- Basin wide percent of average 121 118 WIND RIVER BURROUGHS CREEK 8750 15.4 14.8 104 16.1 16.3 99 CASTLE CREEK 8400 7.0 -M * 8.0 -M * COLD SPRINGS 9630 8.6 9.0 96 8.4 10.6 79 DEER PARK 9700 19.1 17.0 112 22.1 21.9 101 HOBBS PARK 10100 14.6 15.0 97 12.9 12.8 101 LITTLE WARM 9370 12.7 12.0 106 12.8 13.4 96 SOUTH PASS 9040 17.5 16.7 105 15.1 18.5 82 ST. LAWRENCE ALT 8620 5.0 7.4 68 7.0 8.8 80 TOGWOTEE PASS 9580 29.2 25.0 117 30.7 24.7 124 TOWNSEND CREEK 8700 8.9 8.7 102 11.2 11.6 97 ----- ----- Basin wide percent of average 104 98 BIGHORN BASIN BALD MTN. 9380 23.1 19.7 117 18.8 17.4 108 BEAR TRAP MEADOW 8200 8.5 5.2 163 8.0 8.2 98 BLACKWATER 9780 26.4 24.8 106 25.4 20.6 123 BONE SPRINGS DIV 9350 19.6 16.3 120 16.2 14.6 111 EVENING STAR 9200 32.1 30.0 107 34.2 25.4 135 GRAVE SPRINGS 8550 9.2 9.4 98 9.1 9.6 95 KIRWIN 9550 11.7 11.4 103 12.9 11.2 115 MARQUETTE 8760 3.1 -M * 6.2 9.7 64 MIDDLE POWDER 7760 10.6 11.8 90 11.3 12.3 92 OWL CREEK 8975 5.9 5.6 105 6.0 5.8 103 POWDER RIVER PASS 9480 14.2 10.9 130 16.5 12.3 134 SHELL CREEK 9580 17.1 14.8 116 15.5 13.3 117 SYLVAN LAKE 8420 25.2 22.7 111 28.7 21.0 137 SYLVAN ROAD 7120 16.5 12.9 128 21.0 17.7 119 TIMBER CREEK 7950 4.3 5.8 74 5.1 7.3 70 YOUNTS PEAK 8350 17.8 17.2 103 15.5 16.2 96 ----- ----- Basin wide percent of average 111 112 SHOSHONE RIVER BLACKWATER 9780 26.4 24.8 106 25.4 20.6 123 EVENING STAR 9200 32.1 30.0 107 34.2 25.4 135 KIRWIN 9550 11.7 11.4 103 12.9 11.2 115 MARQUETTE 8760 3.1 -M * 6.2 9.7 64 SYLVAN LAKE 8420 25.2 22.7 111 28.7 21.0 137 SYLVAN ROAD 7120 16.5 12.9 128 21.0 17.7 119 YOUNTS PEAK 8350 17.8 17.2 103 15.5 16.2 96 ----- ----- Basin wide percent of average 109 118 POWDER-TONGUE BEAR TRAP MEADOW 8200 8.5 5.2 163 8.0 8.2 98 BIG GOOSE 7990 8.6 10.6 81 10.3 8.4 123 BONE SPRINGS DIV 9350 19.6 16.3 120 16.2 14.6 111 BURGESS JUNCTION 7880 10.7 11.7 91 11.6 12.1 96 CLOUD PEAK RESERVOIR 9860 15.7 13.4 117 14.4 12.8 113 DOME LAKE 8880 13.7 12.4 110 13.2 13.1 101 GRAVE SPRINGS 8550 9.2 9.4 98 9.1 9.6 95 HANSEN SAWMILL 8360 7.2 6.4 113 7.9 8.1 98 LITTLE GOOSE 8870 9.7 -M * 14.0 -M * MIDDLE POWDER 7760 10.6 11.8 90 11.3 12.3 92 POWDER RIVER PASS 9480 14.2 10.9 130 16.5 12.3 134 SOLDIER PARK 8720 8.2 -M * 9.1 -M * SUCKER CREEK 8880 13.3 11.8 113 14.6 13.5 108 TIE CREEK 6870 7.0 5.9 119 10.2 9.8 104 ----- ----- Basin wide percent of average 110 106 BELLE FOURCHE BLIND PARK 6890 9.8 8.7 113 16.6 11.0 151 COLE CANYON 5910 8.0 6.8 118 11.9 6.7 178 NORTH RAPID CREEK 6130 8.6 8.2 105 13.9 8.6 162 ----- ----- Basin wide percent of average 111 161 UPPER N. PLATTE RIVER CINNABAR PARK 9574 25.6 17.8 144 32.9 20.0 165 COLUMBINE 9160 34.7 25.0 139 35.8 25.2 142 DIVIDE PEAK 8880 24.8 19.9 125 27.9 20.7 135 ELK RIVER 8700 26.4 19.5 135 27.2 19.6 139 JOE WRIGHT 10120 32.8 21.3 154 34.7 24.7 140 NORTH FRENCH CREEK 10130 46.0 29.3 157 -M 24.6 * OLD BATTLE 10000 43.4 32.3 134 29.5 34.6 85 SAGE CREEK BASIN 7850 21.6 11.5 188 19.0 12.0 158 SOUTH BRUSH CREEK 8440 19.0 13.1 145 22.2 16.3 136 TOWER 10500 56.0 45.6 123 46.2 38.4 120 WEBBER SPRINGS 9250 31.9 26.3 121 36.5 26.7 137 WILLOW CREEK PASS 9540 19.6 12.0 163 17.8 12.8 139 ----- ----- Basin wide percent of average 140 131 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 32.3 23.7 136 30.7 22.0 140 CASPER MTN. 7900 11.1 14.4 77 13.8 14.3 97 DEADMAN HILL 10220 22.0 16.3 135 22.2 16.8 132 DEER PARK 9700 19.1 17.0 112 22.1 21.9 101 LAPRELE CREEK 8375 13.2 10.9 121 14.1 12.5 113 RENO HILL 8400 14.4 14.2 101 16.9 14.8 114 ROACH 9700 21.2 17.0 125 24.3 18.6 131 SAND LAKE 10050 37.9 32.5 117 35.0 24.0 146 SOUTH PASS 9040 17.5 16.7 105 15.1 18.5 82 WINDY PEAK 7900 10.7 8.1 132 13.1 10.5 125 ----- ----- Basin wide percent of average 117 119 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M 11.1 * 15.0 15.8 95 DIVIDE PEAK 8880 24.8 19.9 125 27.9 20.7 135 OLD BATTLE 10000 43.4 32.3 134 29.5 34.6 85 SANDSTONE RS 8150 18.4 14.9 123 26.2 18.7 140 WHISKEY PARK 8950 -M 30.3 * 41.7 28.7 145 ----- ----- Basin wide percent of average 129 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.7 14.6 108 15.7 13.4 117 BLIND BULL SUM 8650 33.0 28.2 117 23.1 22.4 103 EAST RIM DIVIDE 7930 16.1 13.2 122 13.5 12.1 112 ELKHART PARK G.S. 9400 14.2 13.5 105 13.8 13.4 103 GROS VENTRE SUMMIT 8750 14.8 14.3 103 14.4 13.0 111 GUNSIGHT PASS 9820 18.1 -M * 17.3 -M * KENDALL R.S. 7740 14.2 14.6 97 15.7 14.7 107 LOOMIS PARK 8240 21.3 17.5 122 21.1 17.5 121 NEW FORK LAKE 8340 13.3 11.3 118 11.9 11.4 104 POCKET CREEK 9360 12.8 -M * 14.7 -M * SNIDER BASIN 8060 21.5 14.7 146 19.8 16.2 122 SPRING CREEK DIVIDE 9000 36.1 26.8 135 33.2 26.6 125 TRIPLE PEAK 8500 33.6 25.1 134 34.2 24.9 137 ----- ----- Basin wide percent of average 121 117 LOWER GREEN RIVER HAMS FORK 7840 17.4 12.1 144 15.5 12.3 126 HEWINTA 9519 13.5 12.0 113 17.3 14.6 118 HICKERSON PARK 9145 8.6 7.6 113 10.2 7.9 129 HOLE-IN-ROCK 9150 8.5 7.1 120 10.8 7.4 146 INDIAN CREEK 9425 32.3 28.1 115 27.9 25.6 109 KELLEY R.S. 8180 21.5 17.0 126 24.3 20.4 119 STEEL CREEK PARK 10200 17.4 15.8 110 19.9 16.2 123 ----- ----- Basin wide percent of average 120 121 UPPER BEAR RIVER BUG LAKE 7950 30.5 21.1 145 29.8 19.4 154 HAYDEN FORK 9212 24.1 16.5 146 29.2 21.0 139 KELLEY R.S. 8180 21.5 17.0 126 24.3 20.4 119 LILY LAKE 9156 21.5 13.3 162 21.6 17.5 123 MONTE CRISTO 8960 39.2 30.0 131 37.4 25.6 146 SALT RIVER SUMMIT 7760 18.2 14.6 125 22.3 18.9 118 TRIAL LAKE 9992 36.0 25.2 143 32.9 25.0 132 ----- ----- Basin wide percent of average 139 134 ----------------------------------------------------------------------------- -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.