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 SATURDAY: DECEMBER 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 8.6 8.1 106 11.5 10.3 112 COTTONWOOD CREEK 7670 5.7 9.5 60 10.2 13.3 77 GRAND TARGHEE 9260 15.3 -M * 12.9 -M * GRANITE CREEK 6770 5.3 7.5 71 6.7 9.4 71 GRASSY LAKE 7265 10.7 14.5 74 15.7 17.1 92 GROS VENTRE SUMMIT 8750 4.2 6.8 62 5.6 6.3 89 GUNSIGHT PASS 9820 5.3 -M * 6.6 -M * LEWIS LAKE DIVIDE 7850 11.0 14.5 76 15.6 17.3 90 PHILLIPS BENCH 8200 7.7 12.4 62 9.9 13.3 74 SALT RIVER SUMMIT 7760 3.8 5.3 72 5.1 8.8 58 SNAKE RIVER STATION 6920 7.4 7.7 96 11.8 10.9 108 SPRING CREEK DIVIDE 9000 7.4 12.3 60 8.9 12.8 70 THUMB DIVIDE 7980 6.8 7.5 91 9.2 9.0 102 TOGWOTEE PASS 9580 9.1 11.5 79 10.8 11.9 91 TWO OCEAN PLATEAU 9240 15.4 13.3 116 13.9 13.3 105 WILLOW CREEK 8380 8.1 14.1 57 13.6 15.3 89 ----- ----- Basin wide percent of average 77 88 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 11.1 11.3 98 11.1 9.9 112 BLACK BEAR 8170 12.9 17.0 76 15.6 17.4 90 CANYON 7870 5.2 6.0 87 6.6 7.7 86 FISHER CREEK 9100 15.6 16.0 98 16.5 16.8 98 MADISON PLATEAU 7750 8.6 11.0 78 12.4 12.2 102 NORTHEAST ENTRANCE 7350 3.5 4.9 71 -M 6.3 * PARKER PEAK 9400 10.4 10.4 100 11.7 8.1 144 SYLVAN LAKE 8420 8.4 10.3 82 12.8 10.9 117 THUMB DIVIDE 7980 6.8 7.5 91 9.2 9.0 102 TWO OCEAN PLATEAU 9240 15.4 13.3 116 13.9 13.3 105 WHISKEY CREEK 6800 5.9 7.4 80 9.1 9.8 93 WHITE MILL 8700 8.9 11.0 81 10.9 12.6 87 WOLVERINE 7650 6.3 5.7 111 7.1 6.9 103 ----- ----- Basin wide percent of average 90 102 WIND RIVER BURROUGHS CREEK 8750 5.7 6.7 85 6.3 7.9 80 CASTLE CREEK 8400 3.2 -M * 4.2 -M * COLD SPRINGS 9630 4.2 4.6 91 5.1 5.6 91 DEER PARK 9700 5.1 6.7 76 8.5 10.8 79 HOBBS PARK 10100 8.1 7.6 107 8.1 6.4 127 LITTLE WARM 9370 3.7 5.3 70 5.6 6.6 85 SOUTH PASS 9040 6.1 8.1 75 6.9 9.1 76 ST. LAWRENCE ALT 8620 3.2 3.7 86 4.4 4.6 96 TOGWOTEE PASS 9580 9.1 11.5 79 10.8 11.9 91 TOWNSEND CREEK 8700 4.9 4.4 111 7.4 6.0 123 ----- ----- Basin wide percent of average 85 92 BIGHORN BASIN BALD MTN. 9380 9.4 9.6 98 7.9 8.4 94 BEAR TRAP MEADOW 8200 3.1 2.6 119 4.5 4.5 100 BLACKWATER 9780 12.9 11.9 108 12.3 10.7 115 BONE SPRINGS DIV 9350 9.7 7.7 126 8.6 7.2 119 EVENING STAR 9200 12.6 13.5 93 14.9 12.8 116 GRAVE SPRINGS 8550 3.5 4.0 88 5.3 4.8 110 KIRWIN 9550 7.2 5.9 122 8.6 5.8 148 MARQUETTE 8760 4.2 -M * 8.5 5.3 160 MIDDLE POWDER 7760 4.4 5.5 80 7.1 6.8 104 OWL CREEK 8975 2.7 2.7 100 3.4 2.9 117 POWDER RIVER PASS 9480 5.2 5.2 100 6.8 5.9 115 SHELL CREEK 9580 8.6 7.3 118 7.5 6.6 114 SYLVAN LAKE 8420 8.4 10.3 82 12.8 10.9 117 SYLVAN ROAD 7120 6.3 6.1 103 9.4 10.0 94 TIMBER CREEK 7950 3.4 3.0 113 6.7 3.7 181 YOUNTS PEAK 8350 7.0 7.8 90 7.8 8.1 96 ----- ----- Basin wide percent of average 101 115 SHOSHONE RIVER BLACKWATER 9780 12.9 11.9 108 12.3 10.7 115 EVENING STAR 9200 12.6 13.5 93 14.9 12.8 116 KIRWIN 9550 7.2 5.9 122 8.6 5.8 148 MARQUETTE 8760 4.2 -M * 8.5 5.3 160 SYLVAN LAKE 8420 8.4 10.3 82 12.8 10.9 117 SYLVAN ROAD 7120 6.3 6.1 103 9.4 10.0 94 YOUNTS PEAK 8350 7.0 7.8 90 7.8 8.1 96 ----- ----- Basin wide percent of average 98 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.1 2.6 119 4.5 4.5 100 BIG GOOSE 7990 5.4 4.3 126 9.2 4.5 204 BONE SPRINGS DIV 9350 9.7 7.7 126 8.6 7.2 119 BURGESS JUNCTION 7880 6.2 5.4 115 9.0 6.0 150 CLOUD PEAK RESERVOIR 9860 7.7 5.7 135 8.8 6.4 138 DOME LAKE 8880 6.3 6.0 105 9.2 6.8 135 GRAVE SPRINGS 8550 3.5 4.0 88 5.3 4.8 110 HANSEN SAWMILL 8360 3.2 3.2 100 5.0 4.3 116 LITTLE GOOSE 8870 6.1 -M * 10.2 -M * MIDDLE POWDER 7760 4.4 5.5 80 7.1 6.8 104 POWDER RIVER PASS 9480 5.2 5.2 100 6.8 5.9 115 SOLDIER PARK 8720 4.8 -M * 6.3 -M * SUCKER CREEK 8880 8.3 5.2 160 9.2 6.6 139 TIE CREEK 6870 4.0 2.5 160 9.3 5.1 182 ----- ----- Basin wide percent of average 117 134 BELLE FOURCHE BLIND PARK 6890 3.2 3.5 91 3.9 6.1 64 COLE CANYON 5910 2.4 3.2 75 3.9 3.9 100 NORTH RAPID CREEK 6130 3.5 3.2 109 3.4 5.3 64 ----- ----- Basin wide percent of average 92 73 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 10.2 -M * 11.8 -M * CINNABAR PARK 9574 6.5 9.7 67 9.6 11.0 87 COLUMBINE 9160 6.3 9.8 64 8.4 11.3 74 DIVIDE PEAK 8880 7.0 9.1 77 10.5 9.9 106 ELK RIVER 8700 5.0 7.1 70 7.0 8.8 80 JOE WRIGHT 10120 6.5 9.6 68 9.9 11.8 84 NORTH FRENCH CREEK 10130 7.6 13.2 58 8.5 11.9 71 OLD BATTLE 10000 10.4 14.5 72 13.0 15.8 82 SAGE CREEK BASIN 7850 7.9 5.3 149 5.4 5.8 93 SOUTH BRUSH CREEK 8440 2.6 5.1 51 5.7 7.7 74 TOWER 10500 11.0 20.4 54 13.1 17.7 74 WEBBER SPRINGS 9250 7.5 11.3 66 10.9 12.9 84 WILLOW CREEK PASS 9540 4.1 5.5 75 4.1 6.4 64 ----- ----- Basin wide percent of average 68 81 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 6.0 10.6 57 7.9 10.0 79 CASPER MTN. 7900 8.2 6.9 119 10.1 7.2 140 DEADMAN HILL 10220 9.7 7.5 129 8.6 7.8 110 DEER PARK 9700 5.1 6.7 76 8.5 10.8 79 LAPRELE CREEK 8375 4.0 5.3 75 6.4 6.1 105 RENO HILL 8400 7.2 6.5 111 8.8 7.1 124 ROACH 9700 6.7 7.2 93 9.0 8.4 107 SAND LAKE 10050 10.1 14.7 69 10.5 11.4 92 SOUTH PASS 9040 6.1 8.1 75 6.9 9.1 76 WINDY PEAK 7900 3.5 3.5 100 5.0 5.5 91 ----- ----- Basin wide percent of average 86 98 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.3 4.0 108 5.8 7.0 83 DIVIDE PEAK 8880 7.0 9.1 77 10.5 9.9 106 OLD BATTLE 10000 10.4 14.5 72 13.0 15.8 82 SANDSTONE RS 8150 3.2 5.1 63 5.5 8.8 62 WHISKEY PARK 8950 6.5 10.9 60 10.7 13.0 82 ----- ----- Basin wide percent of average 72 83 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.2 6.8 62 4.9 6.5 75 BLIND BULL SUM 8650 7.7 13.0 59 7.3 10.9 67 EAST RIM DIVIDE 7930 4.1 5.8 71 5.5 5.7 96 ELKHART PARK G.S. 9400 4.4 6.2 71 6.0 6.6 91 GROS VENTRE SUMMIT 8750 4.2 6.8 62 5.6 6.3 89 GUNSIGHT PASS 9820 5.3 -M * 6.6 -M * KENDALL R.S. 7740 5.3 6.6 80 7.0 6.8 103 LOOMIS PARK 8240 5.0 7.9 63 7.2 8.2 88 NEW FORK LAKE 8340 4.8 5.3 91 5.3 5.8 91 POCKET CREEK 9360 2.7 -M * 4.9 -M * SNIDER BASIN 8060 4.2 6.8 62 5.0 7.8 64 SPRING CREEK DIVIDE 9000 7.4 12.3 60 8.9 12.8 70 TRIPLE PEAK 8500 7.9 11.7 68 10.3 11.0 94 ----- ----- Basin wide percent of average 66 83 LOWER GREEN RIVER HAMS FORK 7840 3.3 5.4 61 4.9 5.7 86 HEWINTA 9519 3.3 4.0 82 6.4 6.9 93 HICKERSON PARK 9145 4.8 2.8 171 7.9 4.2 188 HOLE-IN-ROCK 9150 4.0 2.6 154 7.1 3.8 187 INDIAN CREEK 9425 7.3 12.3 59 7.5 12.0 62 KELLEY R.S. 8180 4.7 7.5 63 7.2 9.9 73 STEEL CREEK PARK 10200 -M 6.6 * 7.0 7.5 93 ----- ----- Basin wide percent of average 79 96 UPPER BEAR RIVER BUG LAKE 7950 4.8 8.1 59 7.2 9.1 79 HAYDEN FORK 9212 3.7 6.2 60 8.4 9.9 85 KELLEY R.S. 8180 4.7 7.5 63 7.2 9.9 73 LILY LAKE 9156 3.3 5.4 61 5.7 8.6 66 MONTE CRISTO 8960 6.4 10.8 59 7.9 11.9 66 SALT RIVER SUMMIT 7760 3.8 5.3 72 5.1 8.8 58 TRIAL LAKE 9992 5.0 10.3 49 5.5 11.1 50 ----- ----- Basin wide percent of average 59 68 ----------------------------------------------------------------------------- -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.