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: APRIL 4 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 16.2 18.1 90 19.7 21.9 90 COTTONWOOD CREEK 7670 27.9 24.3 115 31.3 28.0 112 GRAND TARGHEE 9260 44.3 -M * 34.4 -M * GRANITE CREEK 6770 16.9 18.5 91 21.2 20.3 104 GRASSY LAKE 7265 33.1 36.4 91 35.4 36.7 96 GROS VENTRE SUMMIT 8750 -M 14.5 * 15.9 13.2 120 GUNSIGHT PASS 9820 15.2 -M * 16.2 -M * LEWIS LAKE DIVIDE 7850 31.9 36.1 88 34.0 37.5 91 PHILLIPS BENCH 8200 28.6 29.5 97 29.6 29.6 100 SALT RIVER SUMMIT 7760 15.6 14.8 105 16.7 19.2 87 SNAKE RIVER STATION 6920 17.7 19.1 93 22.7 22.7 100 SPRING CREEK DIVIDE 9000 28.0 27.2 103 27.0 27.0 100 THUMB DIVIDE 7980 20.9 19.3 108 21.6 19.3 112 TOGWOTEE PASS 9580 28.1 25.4 111 30.3 25.2 120 TWO OCEAN PLATEAU 9240 38.7 28.7 135 30.1 28.3 106 WILLOW CREEK 8380 35.6 30.9 115 39.9 32.9 121 ----- ----- Basin wide percent of average 103 104 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 23.6 23.8 99 21.6 20.5 105 BLACK BEAR 8170 37.9 40.0 95 -M 41.3 * CANYON 7870 14.0 13.9 101 15.2 15.8 96 FISHER CREEK 9100 37.4 35.6 105 36.2 37.1 98 MADISON PLATEAU 7750 23.5 25.6 92 25.1 27.4 92 NORTHEAST ENTRANCE 7350 11.4 11.3 101 13.9 12.9 108 PARKER PEAK 9400 27.0 22.0 123 -M 16.6 * SYLVAN LAKE 8420 21.9 23.1 95 23.9 21.3 112 THUMB DIVIDE 7980 20.9 19.3 108 21.6 19.3 112 TWO OCEAN PLATEAU 9240 38.7 28.7 135 30.1 28.3 106 WHISKEY CREEK 6800 17.4 17.5 99 20.8 21.4 97 WHITE MILL 8700 25.3 24.8 102 24.8 27.6 90 WOLVERINE 7650 12.3 11.7 105 12.6 13.0 97 ----- ----- Basin wide percent of average 105 100 WIND RIVER BURROUGHS CREEK 8750 16.0 14.9 107 16.6 16.6 100 COLD SPRINGS 9630 8.4 9.0 93 10.8 10.9 99 DEER PARK 9700 12.8 17.4 74 17.5 22.4 78 HOBBS PARK 10100 14.4 15.5 93 14.4 13.1 110 LITTLE WARM 9370 12.5 12.2 102 15.2 13.7 111 SOUTH PASS 9040 13.7 17.0 81 14.9 18.8 79 ST. LAWRENCE ALT 8620 6.8 7.5 91 10.1 9.1 111 TOGWOTEE PASS 9580 28.1 25.4 111 30.3 25.2 120 TOWNSEND CREEK 8700 10.2 9.2 111 12.2 11.9 103 ----- ----- Basin wide percent of average 96 100 BIGHORN BASIN BALD MTN. 9380 19.8 20.1 99 15.6 17.7 88 BEAR TRAP MEADOW 8200 9.6 5.2 185 10.0 8.4 119 BLACKWATER 9780 26.1 25.1 104 23.6 21.0 112 BONE SPRINGS DIV 9350 18.2 16.6 110 14.7 14.9 99 EVENING STAR 9200 30.9 30.3 102 31.6 25.8 122 GRAVE SPRINGS 8550 10.1 9.6 105 10.6 9.9 107 KIRWIN 9550 13.1 11.6 113 14.4 11.5 125 MARQUETTE 8760 7.3 9.3 78 9.1 10.0 91 MIDDLE POWDER 7760 12.4 12.2 102 10.7 12.6 85 OWL CREEK 8975 5.6 5.7 98 5.8 6.0 97 POWDER RIVER PASS 9480 12.9 11.1 116 14.8 12.6 117 SHELL CREEK 9580 17.2 15.1 114 16.3 13.6 120 SYLVAN LAKE 8420 21.9 23.1 95 23.9 21.3 112 SYLVAN ROAD 7120 15.0 12.9 116 19.8 18.0 110 TIMBER CREEK 7950 4.9 5.9 83 8.5 7.5 113 YOUNTS PEAK 8350 18.2 17.5 104 16.2 16.5 98 ----- ----- Basin wide percent of average 105 108 SHOSHONE RIVER BLACKWATER 9780 26.1 25.1 104 23.6 21.0 112 EVENING STAR 9200 30.9 30.3 102 31.6 25.8 122 KIRWIN 9550 13.1 11.6 113 14.4 11.5 125 MARQUETTE 8760 7.3 9.3 78 9.1 10.0 91 SYLVAN LAKE 8420 21.9 23.1 95 23.9 21.3 112 SYLVAN ROAD 7120 15.0 12.9 116 19.8 18.0 110 YOUNTS PEAK 8350 18.2 17.5 104 16.2 16.5 98 ----- ----- Basin wide percent of average 102 112 POWDER-TONGUE BEAR TRAP MEADOW 8200 9.6 5.2 185 10.0 8.4 119 BIG GOOSE 7990 -M 11.0 * 13.5 8.8 153 BONE SPRINGS DIV 9350 18.2 16.6 110 14.7 14.9 99 BURGESS JUNCTION 7880 13.3 11.9 112 13.6 12.4 110 CLOUD PEAK RESERVOIR 9860 18.7 13.8 136 17.2 13.1 131 DOME LAKE 8880 14.3 12.8 112 16.3 13.4 122 GRAVE SPRINGS 8550 10.1 9.6 105 10.6 9.9 107 HANSEN SAWMILL 8360 7.7 6.5 118 10.5 8.4 125 MIDDLE POWDER 7760 12.4 12.2 102 10.7 12.6 85 POWDER RIVER PASS 9480 12.9 11.1 116 14.8 12.6 117 SUCKER CREEK 8880 15.9 12.1 131 17.7 13.8 128 TIE CREEK 6870 -M 6.2 * -M 10.1 * ----- ----- Basin wide percent of average 119 117 BELLE FOURCHE BLIND PARK 6890 7.1 8.6 83 15.1 11.2 135 COLE CANYON 5910 7.3 6.9 106 12.7 6.8 187 NORTH RAPID CREEK 6130 10.6 8.4 126 14.3 8.7 164 ----- ----- Basin wide percent of average 105 158 UPPER N. PLATTE RIVER COLUMBINE 9160 28.1 25.1 112 28.1 25.6 110 DIVIDE PEAK 8880 25.4 20.2 126 26.7 21.1 127 ELK RIVER 8700 23.5 19.8 119 22.8 19.9 115 JOE WRIGHT 10120 24.5 21.8 112 29.0 25.2 115 NORTH FRENCH CREEK 10130 35.9 30.0 120 32.5 25.0 130 OLD BATTLE 10000 35.0 32.8 107 39.8 35.1 113 SAGE CREEK BASIN 7850 13.7 11.7 117 14.9 12.2 122 SOUTH BRUSH CREEK 8440 13.7 13.3 103 17.6 16.7 105 TOWER 10500 46.5 46.4 100 43.3 39.0 111 WEBBER SPRINGS 9250 26.7 26.4 101 30.2 27.1 111 WILLOW CREEK PASS 9540 13.3 12.3 108 13.2 13.0 102 ----- ----- Basin wide percent of average 110 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 24.6 24.3 101 22.4 22.5 100 CASPER MTN. 7900 12.7 14.9 85 13.8 14.7 94 DEADMAN HILL 10220 17.2 16.7 103 17.5 17.2 102 DEER PARK 9700 12.8 17.4 74 17.5 22.4 78 LAPRELE CREEK 8375 9.8 11.0 89 12.6 12.8 98 RENO HILL 8400 15.1 14.6 103 16.2 15.3 106 ROACH 9700 16.0 17.4 92 18.6 18.9 98 SAND LAKE 10050 31.8 33.1 96 29.3 24.5 120 SOUTH PASS 9040 13.7 17.0 81 14.9 18.8 79 WINDY PEAK 7900 9.6 8.3 116 10.4 10.7 97 ----- ----- Basin wide percent of average 93 97 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 18.1 10.8 168 19.2 16.1 119 DIVIDE PEAK 8880 25.4 20.2 126 26.7 21.1 127 OLD BATTLE 10000 35.0 32.8 107 39.8 35.1 113 SANDSTONE RS 8150 19.9 14.7 135 21.3 19.0 112 WHISKEY PARK 8950 34.6 30.5 113 34.8 29.1 120 ----- ----- Basin wide percent of average 122 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 12.6 14.8 85 12.5 13.6 92 BLIND BULL SUM 8650 27.4 28.5 96 20.3 22.7 89 EAST RIM DIVIDE 7930 10.3 13.4 77 12.2 12.3 99 ELKHART PARK G.S. 9400 13.1 13.7 96 14.2 13.6 104 GROS VENTRE SUMMIT 8750 -M 14.5 * 15.9 13.2 120 GUNSIGHT PASS 9820 15.2 -M * 16.2 -M * KENDALL R.S. 7740 11.7 14.5 81 14.0 14.8 95 LOOMIS PARK 8240 16.7 17.5 95 18.8 17.8 106 NEW FORK LAKE 8340 12.1 11.4 106 10.8 11.5 94 SNIDER BASIN 8060 14.8 14.8 100 15.1 16.5 92 SPRING CREEK DIVIDE 9000 28.0 27.2 103 27.0 27.0 100 TRIPLE PEAK 8500 25.1 25.4 99 26.9 25.3 106 ----- ----- Basin wide percent of average 95 100 LOWER GREEN RIVER HAMS FORK 7840 11.2 11.8 95 11.9 12.5 95 HEWINTA 9519 11.1 12.3 90 14.2 14.9 95 HICKERSON PARK 9145 5.4 7.9 68 8.6 8.1 106 HOLE-IN-ROCK 9150 5.9 7.3 81 8.7 7.6 114 INDIAN CREEK 9425 25.5 28.5 89 22.5 26.0 87 KELLEY R.S. 8180 17.0 17.2 99 18.6 20.8 89 STEEL CREEK PARK 10200 13.6 16.1 84 17.0 16.6 102 ----- ----- Basin wide percent of average 89 95 UPPER BEAR RIVER BUG LAKE 7950 19.7 21.4 92 18.3 19.6 93 HAYDEN FORK 9212 17.5 16.7 105 22.3 21.4 104 KELLEY R.S. 8180 17.0 17.2 99 18.6 20.8 89 LILY LAKE 9156 15.4 13.9 111 17.4 17.9 97 MONTE CRISTO 8960 28.1 30.2 93 26.8 26.0 103 SALT RIVER SUMMIT 7760 15.6 14.8 105 16.7 19.2 87 TRIAL LAKE 9992 24.8 25.5 97 23.1 25.5 91 ----- ----- Basin wide percent of average 99 95 ----------------------------------------------------------------------------- -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 1961-90. 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.