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 MONDAY: MAY 19 , 2003 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 -M 5.0 * -M 26.0 * COTTONWOOD CREEK 7600 7.1 11.8 60 28.0 34.2 82 GRANITE CREEK 6770 -M 6.2 * -M 23.9 * GRASSY LAKE 7265 -M 23.6 * -M 43.3 * GROS VENTRE SUMMIT 8775 5.3 8.4 63 14.2 16.7 85 LEWIS LAKE DIVIDE 7860 -M 26.4 * -M 43.8 * PHILLIPS BENCH 8200 -M 21.7 * -M 35.1 * SALT RIVER SUMMIT 7600 .0 3.7 0 16.1 23.1 70 SNAKE RIVER STATION 6920 -M 4.4 * -M 27.2 * SPRING CREEK DIVIDE 9000 -M 22.4 * -M 31.9 * THUMB DIVIDE 7980 4.6 7.9 58 21.5 23.6 91 TOGWOTEE PASS 9580 -M 26.1 * -M 31.1 * TWO OCEAN PLATEAU 9360 37.0 29.4 126 31.6 34.5 92 WILLOW CREEK 8450 -M 22.7 * -M 40.5 * ----- ----- Basin wide percent of average 88* 84* UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 27.3 24.2 113 27.3 25.5 107 BLACK BEAR 8170 -M 34.1 * -M 48.4 * CANYON 8090 9.6 5.7 168 19.3 19.3 100 FISHER CREEK 9100 40.0 35.1 114 41.6 44.7 93 MADISON PLATEAU 7750 -M 17.0 * -M 32.7 * NORTHEAST ENTRANCE 7350 -M 2.6 * -M 16.4 * PARKER PEAK 9400 26.0 22.7 115 25.1 21.6 116 SYLVAN LAKE 8420 -M 18.2 * -M 27.2 * THUMB DIVIDE 7980 4.6 7.9 58 21.5 23.6 91 TWO OCEAN PLATEAU 9360 37.0 29.4 126 31.6 34.5 92 WHISKEY CREEK 6800 -M 7.8 * -M 26.0 * WHITE MILL 8700 -M 23.1 * -M 33.5 * WOLVERINE 7650 .0 2.4 0 14.7 17.0 86 ----- ----- Basin wide percent of average 113 97 WIND RIVER BURROUGHS CREEK 8750 -M 8.8 * -M 21.2 * COLD SPRINGS 9630 .2 2.8 7 13.5 15.8 85 DEER PARK 9700 11.8 15.0 79 22.4 29.3 76 HOBBS PARK 10100 11.4 15.1 75 17.2 19.3 89 LITTLE WARM 9370 -M 6.4 * -M 18.7 * SOUTH PASS 9040 4.0 12.3 33 17.9 24.6 73 ST. LAWRENCE ALT 8620 .0 3.0 0 11.7 13.9 84 TOGWOTEE PASS 9580 -M 26.1 * -M 31.1 * TOWNSEND CREEK 8700 .0 4.8 0 15.7 17.4 90 ----- ----- Basin wide percent of average 52 82 BIGHORN BASIN BALD MTN. 9380 -M 21.5 * -M 23.6 * BEAR TRAP MEADOW 8200 .1 .5 20 12.3 12.8 96 BLACKWATER 9780 29.8 27.8 107 27.4 27.1 101 BONE SPRINGS DIV 9350 17.2 14.3 120 21.4 20.6 104 EVENING STAR 9200 31.8 31.1 102 38.5 32.5 118 GRAVE SPRINGS 8550 2.1 6.5 32 12.1 14.8 82 KIRWIN 9550 12.4 9.7 128 16.7 16.1 104 MARQUETTE 8760 -M 7.8 * -M 16.2 * MIDDLE POWDER 7760 5.4 9.1 59 11.7 17.7 66 OWL CREEK 8975 .1 1.9 5 8.8 9.9 89 POWDER RIVER PASS 9480 7.3 6.7 109 16.8 18.0 93 SHELL CREEK 9580 16.6 14.9 111 17.9 18.9 95 SYLVAN LAKE 8420 -M 18.2 * -M 27.2 * SYLVAN ROAD 7120 -M 2.1 * -M 22.1 * TIMBER CREEK 7950 1.1 1.8 61 12.5 12.8 98 YOUNTS PEAK 8350 -M 13.4 * -M 20.7 * ----- ----- Basin wide percent of average 100 97 SHOSHONE RIVER BLACKWATER 9780 29.8 27.8 107 27.4 27.1 101 EVENING STAR 9200 31.8 31.1 102 38.5 32.5 118 KIRWIN 9550 12.4 9.7 128 16.7 16.1 104 MARQUETTE 8760 -M 7.8 * -M 16.2 * SYLVAN LAKE 8420 -M 18.2 * -M 27.2 * SYLVAN ROAD 7120 -M 2.1 * -M 22.1 * YOUNTS PEAK 8350 -M 13.4 * -M 20.7 * ----- ----- Basin wide percent of average 108* 109* POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .5 20 12.3 12.8 96 BIG GOOSE 7990 8.9 7.6 117 18.1 14.9 121 BONE SPRINGS DIV 9350 17.2 14.3 120 21.4 20.6 104 BURGESS JUNCTION 7880 11.5 8.4 137 18.7 17.2 109 CLOUD PEAK RESERVOIR 9860 16.7 13.1 127 19.4 19.8 98 DOME LAKE 8880 8.9 8.7 102 20.5 19.0 108 GRAVE SPRINGS 8550 2.1 6.5 32 12.1 14.8 82 HANSEN SAWMILL 8360 .4 1.7 24 14.5 12.8 113 MIDDLE POWDER 7760 5.4 9.1 59 11.7 17.7 66 POWDER RIVER PASS 9480 7.3 6.7 109 16.8 18.0 93 SUCKER CREEK 8880 12.6 8.6 147 22.1 19.8 112 TIE CREEK 6870 .2 1.0 20 19.2 15.6 123 ----- ----- Basin wide percent of average 106 102 BELLE FOURCHE BLIND PARK 6890 .2 .1 200* 14.5 16.3 89 COLE CANYON 5910 .0 -M * 12.1 -M * NORTH RAPID CREEK 6130 .0 .5 0* 12.9 12.9 100 ----- ----- Basin wide percent of average 33* 94 UPPER N. PLATTE RIVER COLUMBINE 9400 9.1 10.5 87 31.4 30.9 102 DIVIDE PEAK 8800 11.6 10.7 108 27.4 26.2 105 ELK RIVER 8700 2.9 6.1 48 25.3 24.7 102 JOE WRIGHT 10120 31.1 22.2 140 38.9 32.8 119 NORTH FRENCH CREEK 10100 36.6 31.0 118 38.6 32.4 119 OLD BATTLE 10000 -M 33.2 * -M 42.4 * SAGE CREEK BASIN 7850 .0 6.2 0 16.6 15.1 110 SOUTH BRUSH CREEK 8400 -M 5.4 * -M 22.1 * TOWER 10500 50.8 49.4 103 55.1 47.9 115 WEBBER SPRINGS 9200 11.0 15.4 71 31.5 33.2 95 WILLOW CREEK PASS 9540 19.4 9.3 209 21.7 17.5 124 ----- ----- Basin wide percent of average 107 110 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 16.7 20.4 82 27.8 29.4 95 CASPER MTN. 7900 4.8 9.9 48 16.7 22.1 76 DEADMAN HILL 10220 19.4 16.4 118 26.2 23.1 113 DEER PARK 9700 11.8 15.0 79 22.4 29.3 76 LAPRELE CREEK 8320 .1 2.9 3 16.4 18.6 88 RENO HILL 8400 8.7 8.2 106 20.6 22.8 90 ROACH 9700 14.1 11.6 122 25.5 24.7 103 SAND LAKE 10080 32.9 33.2 99 31.9 32.2 99 SOUTH PASS 9040 4.0 12.3 33 17.9 24.6 73 WINDY PEAK 7840 .2 1.3 15 16.3 15.6 104 ----- ----- Basin wide percent of average 86 91 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .5 0* 20.2 19.9 102 DIVIDE PEAK 8800 11.6 10.7 108 27.4 26.2 105 OLD BATTLE 10000 -M 33.2 * -M 42.4 * SANDSTONE RS 8150 .2 2.9 7 24.3 23.6 103 WHISKEY PARK 8950 26.9 23.5 114 35.2 36.1 98 ----- ----- Basin wide percent of average 103 101 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.7 7.2 51 14.7 17.5 84 BLIND BULL SUM 8650 -M 23.2 * -M 26.9 * EAST RIM DIVIDE 7930 2.4 7.4 32 12.0 15.2 79 ELKHART PARK G.S. 9400 -M 8.0 * -M 17.7 * GROS VENTRE SUMMIT 8775 5.3 8.4 63 14.2 16.7 85 KENDALL R.S. 7740 .0 2.8 0 14.7 17.8 83 LOOMIS PARK 8240 -M 8.0 * -M 21.4 * NEW FORK LAKE 8340 .0 2.9 0 -M 14.9 * SNIDER BASIN 8250 .0 5.9 0 15.0 19.6 77 SPRING CREEK DIVIDE 9000 -M 22.4 * -M 31.9 * TRIPLE PEAK 8500 -M 14.2 * -M 30.5 * ----- ----- Basin wide percent of average 33 81* LOWER GREEN RIVER HAMS FORK 7840 .0 .8 0* 14.1 16.0 88 HEWINTA 9500 -M 3.6 * -M 19.3 * HICKERSON PARK 9150 -M 1.6 * -M 11.6 * HOLE-IN-ROCK 9150 .0 1.3 0 13.3 11.2 119 INDIAN CREEK 9425 19.5 21.6 90 23.5 31.2 75 KELLEY R.S. 8180 1.5 7.3 21 16.1 25.1 64 STEEL CREEK PARK 10100 16.5 16.6 99 18.6 21.9 85 ----- ----- Basin wide percent of average 79 81 UPPER BEAR RIVER BUG LAKE 7950 4.2 8.9 47 20.3 24.0 85 HAYDEN FORK 9400 -M 5.9 * -M 27.1 * KELLEY R.S. 8180 1.5 7.3 21 16.1 25.1 64 LILY LAKE 9050 .0 5.1 0 18.8 22.8 82 MONTE CRISTO 8960 6.4 20.3 32 26.4 32.4 81 SALT RIVER SUMMIT 7600 .0 3.7 0 16.1 23.1 70 TRIAL LAKE 9960 10.9 21.2 51 22.7 31.7 72 ----- ----- Basin wide percent of average 35 76 ----------------------------------------------------------------------------- -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.