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 22 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 3.8 3 16.3 26.1 62 COTTONWOOD CREEK 7670 11.4 11.0 104 28.7 34.6 83 GRAND TARGHEE 9260 43.8 -M * 36.3 -M * GRANITE CREEK 6770 .1 5.4 2 15.9 24.0 66 GRASSY LAKE 7265 13.2 22.7 58 31.8 43.6 73 GROS VENTRE SUMMIT 8750 5.1 7.9 65 12.9 16.8 77 GUNSIGHT PASS 9820 10.8 -M * 15.7 -M * LEWIS LAKE DIVIDE 7850 13.3 25.5 52 26.7 44.2 60 PHILLIPS BENCH 8200 12.7 20.8 61 25.0 35.5 70 SALT RIVER SUMMIT 7760 .8 2.0 40 16.7 23.3 72 SNAKE RIVER STATION 6920 .0 2.6 0 19.9 27.4 73 SPRING CREEK DIVIDE 9000 20.9 21.7 96 24.1 32.2 75 THUMB DIVIDE 7980 .3 7.1 4 16.8 23.9 70 TOGWOTEE PASS 9580 22.6 26.0 87 -M 31.5 * TWO OCEAN PLATEAU 9240 24.5 29.3 84 22.6 34.9 65 WILLOW CREEK 8380 19.0 21.9 87 36.6 41.1 89 ----- ----- Basin wide percent of average 69 72 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 16.9 24.2 70 18.2 25.9 70 BLACK BEAR 8170 22.5 33.9 66 32.3 48.8 66 CANYON 7870 2.2 4.7 47 14.6 19.5 75 FISHER CREEK 9100 24.7 34.5 72 30.0 45.1 67 MADISON PLATEAU 7750 12.0 16.3 74 25.7 32.9 78 NORTHEAST ENTRANCE 7350 .0 1.6 0 12.2 16.6 73 PARKER PEAK 9400 18.0 22.8 79 17.4 21.9 79 SYLVAN LAKE 8420 10.9 17.6 62 23.1 27.4 84 THUMB DIVIDE 7980 .3 7.1 4 16.8 23.9 70 TWO OCEAN PLATEAU 9240 24.5 29.3 84 22.6 34.9 65 WHISKEY CREEK 6800 3.5 6.6 53 16.5 26.2 63 WHITE MILL 8700 16.4 23.0 71 20.9 33.8 62 WOLVERINE 7650 .0 1.5 0 9.9 17.3 57 ----- ----- Basin wide percent of average 68 70 WIND RIVER BURROUGHS CREEK 8750 9.4 8.2 115 -M 21.5 * COLD SPRINGS 9630 7.6 2.0 380 18.6 16.1 116 DEER PARK 9700 21.6 15.9 136 28.2 29.7 95 HOBBS PARK 10100 26.1 15.1 173 27.7 19.7 141 LITTLE WARM 9370 8.3 5.4 154 14.8 19.0 78 SOUTH PASS 9040 18.1 11.0 165 26.2 25.1 104 ST. LAWRENCE ALT 8620 6.9 1.9 363 19.8 14.3 138 TOGWOTEE PASS 9580 22.6 26.0 87 -M 31.5 * TOWNSEND CREEK 8700 14.2 3.9 364 24.8 17.8 139 ----- ----- Basin wide percent of average 151 113 BIGHORN BASIN BALD MTN. 9380 17.0 21.6 79 16.1 24.1 67 BEAR TRAP MEADOW 8200 1.5 .0 * 13.3 13.1 102 BLACKWATER 9780 22.2 28.5 78 22.5 27.4 82 BONE SPRINGS DIV 9350 12.9 14.0 92 15.6 21.0 74 EVENING STAR 9200 18.6 31.0 60 26.6 32.8 81 GRAVE SPRINGS 8550 9.5 4.4 216 17.4 15.2 114 KIRWIN 9550 11.7 9.7 121 16.5 16.4 101 MARQUETTE 8760 12.9 7.4 174 17.8 16.6 107 MIDDLE POWDER 7760 10.5 7.9 133 13.7 18.1 76 OWL CREEK 8975 .3 1.4 21 11.8 10.1 117 POWDER RIVER PASS 9480 6.2 5.8 107 15.5 18.4 84 SHELL CREEK 9580 14.4 14.8 97 16.5 19.3 85 SYLVAN LAKE 8420 10.9 17.6 62 23.1 27.4 84 SYLVAN ROAD 7120 .0 1.1 0* 16.5 22.4 74 TIMBER CREEK 7950 2.7 1.5 180 14.3 13.2 108 YOUNTS PEAK 8350 9.3 13.0 72 13.6 20.9 65 ----- ----- Basin wide percent of average 89 86 SHOSHONE RIVER BLACKWATER 9780 22.2 28.5 78 22.5 27.4 82 EVENING STAR 9200 18.6 31.0 60 26.6 32.8 81 KIRWIN 9550 11.7 9.7 121 16.5 16.4 101 MARQUETTE 8760 12.9 7.4 174 17.8 16.6 107 SYLVAN LAKE 8420 10.9 17.6 62 23.1 27.4 84 SYLVAN ROAD 7120 .0 1.1 0* 16.5 22.4 74 YOUNTS PEAK 8350 9.3 13.0 72 13.6 20.9 65 ----- ----- Basin wide percent of average 79 83 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.5 .0 * 13.3 13.1 102 BIG GOOSE 7990 11.1 7.6 146 18.8 15.4 122 BONE SPRINGS DIV 9350 12.9 14.0 92 15.6 21.0 74 BURGESS JUNCTION 7880 11.9 7.6 157 16.9 17.6 96 CLOUD PEAK RESERVOIR 9860 17.7 12.8 138 20.1 20.2 100 DOME LAKE 8880 11.9 7.8 153 19.8 19.5 102 GRAVE SPRINGS 8550 9.5 4.4 216 17.4 15.2 114 HANSEN SAWMILL 8360 2.3 1.0 230 14.5 13.0 112 MIDDLE POWDER 7760 10.5 7.9 133 13.7 18.1 76 POWDER RIVER PASS 9480 6.2 5.8 107 15.5 18.4 84 SUCKER CREEK 8880 15.5 8.1 191 21.8 20.3 107 TIE CREEK 6870 3.2 .5 640* 18.8 16.1 117 ----- ----- Basin wide percent of average 147 99 BELLE FOURCHE BLIND PARK 6890 .3 .0 * 18.8 16.6 113 COLE CANYON 5910 .0 .1 0* 17.8 11.8 151 NORTH RAPID CREEK 6130 .2 .1 200* 17.7 13.2 134 ----- ----- Basin wide percent of average 250* 131 UPPER N. PLATTE RIVER COLUMBINE 9160 13.0 8.7 149 30.9 31.3 99 DIVIDE PEAK 8880 15.5 9.3 167 31.6 26.5 119 ELK RIVER 8700 8.1 4.6 176 27.4 25.1 109 JOE WRIGHT 10120 -M 22.2 * -M 33.4 * NORTH FRENCH CREEK 10130 43.9 30.9 142 45.3 32.9 138 OLD BATTLE 10000 43.7 32.8 133 47.2 43.0 110 SAGE CREEK BASIN 7850 .0 5.4 0 17.4 15.4 113 SOUTH BRUSH CREEK 8440 7.0 4.5 156 27.3 22.6 121 TOWER 10500 45.0 49.6 91 45.4 48.6 93 WEBBER SPRINGS 9250 22.6 13.9 163 36.8 33.6 110 WILLOW CREEK PASS 9540 12.7 8.4 151 18.5 17.7 105 ----- ----- Basin wide percent of average 126 110 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 23.9 19.3 124 30.2 29.9 101 CASPER MTN. 7900 11.8 8.7 136 21.3 22.7 94 DEADMAN HILL 10220 -M 16.1 * -M 23.5 * DEER PARK 9700 21.6 15.9 136 28.2 29.7 95 LAPRELE CREEK 8375 1.3 2.3 57 19.3 19.0 102 RENO HILL 8400 16.1 7.1 227 27.0 23.4 115 ROACH 9700 20.9 10.6 197 29.8 25.1 119 SAND LAKE 10050 40.4 33.2 122 41.3 32.8 126 SOUTH PASS 9040 18.1 11.0 165 26.2 25.1 104 WINDY PEAK 7900 2.1 .9 233 19.1 15.9 120 ----- ----- Basin wide percent of average 143 108 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 20.3 20.2 100 DIVIDE PEAK 8880 15.5 9.3 167 31.6 26.5 119 OLD BATTLE 10000 43.7 32.8 133 47.2 43.0 110 SANDSTONE RS 8150 -M 2.0 * 23.3 23.9 97 WHISKEY PARK 8950 27.5 22.8 121 40.8 36.7 111 ----- ----- Basin wide percent of average 134 109 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.4 6.5 68 13.3 17.7 75 BLIND BULL SUM 8650 17.8 22.9 78 17.2 27.1 63 EAST RIM DIVIDE 7930 .6 6.7 9 9.8 15.3 64 ELKHART PARK G.S. 9400 4.9 7.4 66 12.2 18.0 68 GROS VENTRE SUMMIT 8750 5.1 7.9 65 12.9 16.8 77 GUNSIGHT PASS 9820 10.8 -M * 15.7 -M * KENDALL R.S. 7740 .4 .5 80* 11.7 17.9 65 LOOMIS PARK 8240 .7 7.2 10 13.7 21.7 63 NEW FORK LAKE 8340 .2 1.6 13 9.2 15.0 61 POCKET CREEK 9360 7.5 -M * 14.8 -M * SNIDER BASIN 8060 2.9 4.9 59 16.1 19.8 81 SPRING CREEK DIVIDE 9000 20.9 21.7 96 24.1 32.2 75 TRIPLE PEAK 8500 13.9 13.1 106 27.5 30.9 89 ----- ----- Basin wide percent of average 72 72 LOWER GREEN RIVER HAMS FORK 7840 .6 .0 * 14.8 16.3 91 HEWINTA 9519 4.3 2.6 165 17.9 19.5 92 HICKERSON PARK 9145 .0 .9 0 15.5 11.8 131 HOLE-IN-ROCK 9150 .0 .7 0* 15.2 11.4 133 INDIAN CREEK 9425 20.0 20.9 96 23.4 31.5 74 KELLEY R.S. 8180 5.5 6.5 85 18.6 25.4 73 STEEL CREEK PARK 10200 21.0 16.4 128 22.4 22.2 101 ----- ----- Basin wide percent of average 107 93 UPPER BEAR RIVER BUG LAKE 7950 7.9 7.5 105 19.9 24.3 82 HAYDEN FORK 9212 1.9 4.8 40 24.3 27.4 89 KELLEY R.S. 8180 5.5 6.5 85 18.6 25.4 73 LILY LAKE 9156 8.3 4.3 193 20.5 23.1 89 MONTE CRISTO 8960 17.1 19.4 88 25.9 32.9 79 SALT RIVER SUMMIT 7760 .8 2.0 40 16.7 23.3 72 TRIAL LAKE 9992 18.9 20.5 92 22.1 32.1 69 ----- ----- Basin wide percent of average 93 79 ----------------------------------------------------------------------------- -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.