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: MAY 30 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 100 24.5 26.8 91 COTTONWOOD CREEK 7670 2.8 6.7 42 38.9 35.5 110 GRAND TARGHEE 9260 40.7 -M * 43.0 -M * GRANITE CREEK 6770 .1 2.1 5 27.6 24.7 112 GRASSY LAKE 7265 3.8 16.6 23 42.7 44.7 96 GROS VENTRE SUMMIT 8750 .1 4.9 2 19.0 17.4 109 GUNSIGHT PASS 9820 8.3 -M * 21.0 -M * LEWIS LAKE DIVIDE 7850 14.4 20.2 71 42.5 45.1 94 PHILLIPS BENCH 8200 12.1 15.9 76 36.5 36.3 101 SALT RIVER SUMMIT 7760 .1 .0 21.2 23.9 89 SNAKE RIVER STATION 6920 .0 .0 100 29.0 28.1 103 SPRING CREEK DIVIDE 9000 15.5 17.0 91 33.3 32.9 101 THUMB DIVIDE 7980 .2 3.4 6 27.8 24.6 113 TOGWOTEE PASS 9580 22.3 23.3 96 36.5 32.4 113 TWO OCEAN PLATEAU 9240 34.4 26.5 130 37.7 36.0 105 WILLOW CREEK 8380 12.5 16.5 76 49.8 42.2 118 ----- ----- Basin wide percent of average 77 104 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 20.1 21.6 93 27.5 26.7 103 BLACK BEAR 8170 26.4 28.4 93 45.6 49.9 91 CANYON 7870 .0 2.3 0 20.7 20.2 102 FISHER CREEK 9100 29.0 31.3 93 45.5 46.3 98 MADISON PLATEAU 7750 9.7 10.9 89 32.2 33.9 95 NORTHEAST ENTRANCE 7350 .1 .6 17 18.2 17.3 105 PARKER PEAK 9400 14.2 19.9 71 24.6 22.9 107 SYLVAN LAKE 8420 7.0 13.3 53 30.2 28.6 106 THUMB DIVIDE 7980 .2 3.4 6 27.8 24.6 113 TWO OCEAN PLATEAU 9240 34.4 26.5 130 37.7 36.0 105 WHISKEY CREEK 6800 1.4 2.2 64 27.0 27.0 100 WHITE MILL 8700 17.2 19.4 89 31.7 34.8 91 WOLVERINE 7650 .0 .1 0 17.2 18.0 96 ----- ----- Basin wide percent of average 89 100 WIND RIVER BURROUGHS CREEK 8750 4.0 4.6 87 22.2 22.3 100 COLD SPRINGS 9630 .0 1.1 0 16.2 16.8 96 DEER PARK 9700 4.5 10.1 45 24.3 30.6 79 HOBBS PARK 10100 7.4 11.3 65 22.1 20.7 107 LITTLE WARM 9370 .0 2.7 0 19.9 19.8 101 SOUTH PASS 9040 .2 7.9 3 21.1 25.8 82 ST. LAWRENCE ALT 8620 .1 .7 14 15.1 14.9 101 TOGWOTEE PASS 9580 22.3 23.3 96 36.5 32.4 113 TOWNSEND CREEK 8700 .0 2.2 0 18.5 18.6 99 ----- ----- Basin wide percent of average 60 97 BIGHORN BASIN BALD MTN. 9380 11.1 18.0 62 20.3 25.0 81 BEAR TRAP MEADOW 8200 .1 .0 13.1 13.9 94 BLACKWATER 9780 22.4 26.1 86 31.0 28.5 109 BONE SPRINGS DIV 9350 4.3 10.2 42 19.2 22.0 87 EVENING STAR 9200 21.6 28.0 77 40.2 34.0 118 GRAVE SPRINGS 8550 .0 2.4 0 13.1 15.9 82 KIRWIN 9550 .4 6.6 6 20.0 17.2 116 MARQUETTE 8760 .1 5.1 2 14.2 17.6 81 MIDDLE POWDER 7760 .0 4.0 0 14.2 18.8 76 OWL CREEK 8975 .1 .7 14 11.3 10.8 105 POWDER RIVER PASS 9480 .0 3.1 0 19.8 19.3 103 SHELL CREEK 9580 9.2 12.0 77 20.5 20.2 101 SYLVAN LAKE 8420 7.0 13.3 53 30.2 28.6 106 SYLVAN ROAD 7120 .1 .2 50 25.3 23.0 110 TIMBER CREEK 7950 .1 .8 12 13.2 14.1 94 YOUNTS PEAK 8350 7.0 8.8 80 20.9 21.8 96 ----- ----- Basin wide percent of average 60 99 SHOSHONE RIVER BLACKWATER 9780 22.4 26.1 86 31.0 28.5 109 EVENING STAR 9200 21.6 28.0 77 40.2 34.0 118 KIRWIN 9550 .4 6.6 6 20.0 17.2 116 MARQUETTE 8760 .1 5.1 2 14.2 17.6 81 SYLVAN LAKE 8420 7.0 13.3 53 30.2 28.6 106 SYLVAN ROAD 7120 .1 .2 50 25.3 23.0 110 YOUNTS PEAK 8350 7.0 8.8 80 20.9 21.8 96 ----- ----- Basin wide percent of average 67 107 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .0 13.1 13.9 94 BIG GOOSE 7990 .0 4.4 0 16.9 16.2 104 BONE SPRINGS DIV 9350 4.3 10.2 42 19.2 22.0 87 BURGESS JUNCTION 7880 .0 4.1 0 16.2 18.3 89 CLOUD PEAK RESERVOIR 9860 7.6 9.3 82 22.1 21.3 104 DOME LAKE 8880 .0 4.2 0 20.5 20.3 101 GRAVE SPRINGS 8550 .0 2.4 0 13.1 15.9 82 HANSEN SAWMILL 8360 .0 .4 0 13.5 13.8 98 MIDDLE POWDER 7760 .0 4.0 0 14.2 18.8 76 POWDER RIVER PASS 9480 .0 3.1 0 19.8 19.3 103 SUCKER CREEK 8880 1.3 4.8 27 22.1 21.2 104 TIE CREEK 6870 .0 .0 100 17.9 16.9 106 ----- ----- Basin wide percent of average 28 96 BELLE FOURCHE BLIND PARK 6890 .1 .0 19.1 17.5 109 COLE CANYON 5910 .0 .0 100 15.6 12.6 124 NORTH RAPID CREEK 6130 .1 .0 18.3 13.8 133 ----- ----- Basin wide percent of average * 121 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 3.4 0 33.5 32.0 105 DIVIDE PEAK 8880 .0 5.0 0 34.4 27.2 126 ELK RIVER 8700 .2 1.9 11 27.6 25.8 107 JOE WRIGHT 10120 13.6 18.7 73 36.1 34.5 105 NORTH FRENCH CREEK 10130 -M 26.1 * -M 34.0 * OLD BATTLE 10000 29.7 27.8 107 48.8 43.9 111 SAGE CREEK BASIN 7850 .0 2.9 0 20.1 15.8 127 SOUTH BRUSH CREEK 8440 .0 2.3 0 23.3 23.4 100 TOWER 10500 31.3 45.0 70 51.6 49.6 104 WEBBER SPRINGS 9250 3.5 8.4 42 37.0 34.4 108 WILLOW CREEK PASS 9540 .0 4.4 0 18.1 18.5 98 ----- ----- Basin wide percent of average 65 108 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 6.1 13.7 45 29.0 30.8 94 CASPER MTN. 7900 .1 5.2 2 19.9 23.7 84 DEADMAN HILL 10220 9.4 12.7 74 24.3 24.4 100 DEER PARK 9700 4.5 10.1 45 24.3 30.6 79 LAPRELE CREEK 8375 .0 1.1 0 17.2 19.8 87 RENO HILL 8400 .0 4.3 0 22.5 24.4 92 ROACH 9700 .6 7.2 8 25.9 26.1 99 SAND LAKE 10050 26.9 28.1 96 38.4 33.9 113 SOUTH PASS 9040 .2 7.9 3 21.1 25.8 82 WINDY PEAK 7900 .6 .2 300 16.4 16.8 98 ----- ----- Basin wide percent of average 53 93 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 23.7 20.8 114 DIVIDE PEAK 8880 .0 5.0 0 34.4 27.2 126 OLD BATTLE 10000 29.7 27.8 107 48.8 43.9 111 SANDSTONE RS 8150 .1 .5 20 26.4 24.6 107 WHISKEY PARK 8950 4.2 16.2 26 42.1 37.5 112 ----- ----- Basin wide percent of average 69 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 2.9 0 18.5 18.4 101 BLIND BULL SUM 8650 21.4 19.4 110 26.3 27.9 94 EAST RIM DIVIDE 7930 .0 3.0 0 15.5 15.9 97 ELKHART PARK G.S. 9400 -M 4.5 * 19.3 18.8 103 GROS VENTRE SUMMIT 8750 .1 4.9 2 19.0 17.4 109 GUNSIGHT PASS 9820 8.3 -M * 21.0 -M * KENDALL R.S. 7740 .0 .0 100 17.3 18.4 94 LOOMIS PARK 8240 .1 3.7 3 22.1 22.3 99 NEW FORK LAKE 8340 -M .0 * 15.3 15.7 97 SNIDER BASIN 8060 -M 1.0 * 18.5 20.3 91 SPRING CREEK DIVIDE 9000 15.5 17.0 91 33.3 32.9 101 TRIPLE PEAK 8500 1.8 7.2 25 34.2 31.7 108 ----- ----- Basin wide percent of average 67 100 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 16.5 16.8 98 HEWINTA 9519 .0 1.0 0 17.8 20.1 89 HICKERSON PARK 9145 .0 .1 0 14.5 12.4 117 HOLE-IN-ROCK 9150 .0 .1 0 13.7 12.0 114 INDIAN CREEK 9425 -M 16.5 * 27.7 32.2 86 KELLEY R.S. 8180 .0 2.8 0 23.1 26.0 89 STEEL CREEK PARK 10200 5.9 13.2 45 21.7 22.9 95 ----- ----- Basin wide percent of average 34 95 UPPER BEAR RIVER BUG LAKE 7950 .2 3.7 5 22.6 24.9 91 HAYDEN FORK 9212 .1 2.1 5 27.8 28.2 99 KELLEY R.S. 8180 .0 2.8 0 23.1 26.0 89 LILY LAKE 9156 .0 2.1 0 21.9 23.9 92 MONTE CRISTO 8960 2.1 14.5 14 32.9 33.8 97 SALT RIVER SUMMIT 7760 .1 .0 21.2 23.9 89 TRIAL LAKE 9992 3.5 16.3 21 30.8 33.0 93 ----- ----- Basin wide percent of average 14 93 ----------------------------------------------------------------------------- -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.