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 SUNDAY: APRIL 25 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 20.2 12.7 159 28.9 24.9 117 COTTONWOOD CREEK 7600 24.5 21.4 116 30.5 27.9 110 GRANITE CREEK 6770 19.9 14.9 134 24.4 26.4 93 GRASSY LAKE 7265 43.3 35.4 123 44.8 41.3 109 GROS VENTRE SUMMIT 8775 -M 14.7 * -M 17.9 * LEWIS LAKE DIVIDE 7860 41.3 35.4 117 42.8 41.9 102 PHILLIPS BENCH 8200 35.0 30.2 117 34.0 33.2 103 SALT RIVER SUMMIT 7600 15.6 12.0 131 19.9 18.9 106 SNAKE RIVER STATION 6920 19.4 17.4 112 27.9 28.9 97 SPRING CREEK DIVIDE 9000 33.8 29.7 115 31.5 30.4 104 THUMB DIVIDE 7980 23.9 16.0 149 24.5 23.2 106 TOGWOTEE PASS 9580 -M 27.9 * 31.7 31.4 101 TWO OCEAN PLATEAU 9360 40.5 27.4 149 34.3 34.2 101 WILLOW CREEK 8450 33.4 31.9 105 41.2 35.7 116 ----- ----- Basin wide percent of average 124 105 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 28.9 25.9 112 25.9 20.7 126 BLACK BEAR 7950 -M 40.0 * 48.8 45.5 108 CANYON 7940 17.4 12.0 146 20.7 16.0 129 FISHER CREEK 9100 39.3 38.5 102 39.3 41.3 96 MADISON PLATEAU 7750 -M 24.5 * -M 29.4 * NORTHEAST ENTRANCE 7350 9.5 7.1 134 15.1 13.6 112 PARKER PEAK 9400 27.7 23.7 117 -M 17.9 * SYLVAN LAKE 8420 28.2 23.9 118 30.7 21.9 141 THUMB DIVIDE 7980 23.9 16.0 149 24.5 23.2 106 TWO OCEAN PLATEAU 9360 40.5 27.4 149 34.3 34.2 101 WHISKEY CREEK 6800 21.9 16.4 133 26.2 24.4 107 WHITE MILL 8700 29.4 26.2 113 26.7 31.9 84 WOLVERINE 7650 12.4 9.5 130 14.2 14.9 96 ----- ----- Basin wide percent of average 124 107 WIND RIVER BURROUGHS CREEK 8750 18.2 14.0 131 19.9 18.9 105 COLD SPRINGS 9630 -M 7.6 * 17.7 12.7 140 DEER PARK 9700 24.0 -M * -M -M * HOBBS PARK 10100 26.2 17.5 150 23.7 16.7 142 LITTLE WARM 9620 17.7 11.6 152 19.7 15.9 125 SOUTH PASS 9040 -M 18.0 * 26.2 20.0 132 ST. LAWRENCE ALT 8620 -M 6.1 * -M 12.1 * TOGWOTEE PASS 9580 -M 27.9 * 31.7 31.4 101 TOWNSEND CREEK 8700 -M 10.0 * 22.5 15.0 150 ----- ----- Basin wide percent of average 144* 124 BIGHORN BASIN BALD MTN. 9375 22.7 23.5 97 21.2 20.2 105 BEAR TRAP MEADOW 7900 2.7 5.3 50 12.7 10.2 125 BLACKWATER 9780 34.5 25.4 136 27.9 20.2 139 BONE SPRINGS DIV 9350 20.9 18.4 114 20.7 17.7 118 EVENING STAR 9200 36.7 30.4 121 37.9 25.4 150 GRAVE SPRINGS 8550 11.4 11.4 100 15.1 12.0 127 KIRWIN 9550 15.5 11.5 134 17.4 13.0 135 MARQUETTE 8760 15.4 8.7 176 16.4 12.9 129 MIDDLE POWDER 7760 18.4 14.5 128 20.7 14.4 145 OWL CREEK 8975 8.7 3.9 224 9.5 7.8 122 POWDER RIVER PASS 9480 13.4 11.0 121 17.9 14.1 127 SHELL CREEK 9580 18.9 16.9 112 17.7 15.5 115 SYLVAN LAKE 8420 28.2 23.9 118 30.7 21.9 141 SYLVAN ROAD 8120 -M 9.0 * -M 18.2 * TIMBER CREEK 7950 9.5 6.3 150 12.5 9.5 131 YOUNTS PEAK 8350 22.0 18.4 120 20.7 18.9 111 ----- ----- Basin wide percent of average 122 129 SHOSHONE RIVER BLACKWATER 9780 34.5 25.4 136 27.9 20.2 139 EVENING STAR 9200 36.7 30.4 121 37.9 25.4 150 KIRWIN 9550 15.5 11.5 134 17.4 13.0 135 MARQUETTE 8760 15.4 8.7 176 16.4 12.9 129 SYLVAN LAKE 8420 28.2 23.9 118 30.7 21.9 141 SYLVAN ROAD 8120 -M 9.0 * -M 18.2 * YOUNTS PEAK 8350 22.0 18.4 120 20.7 18.9 111 ----- ----- Basin wide percent of average 129 136 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.7 5.3 50 12.7 10.2 125 BIG GOOSE 7990 11.0 -M * 15.5 -M * BONE SPRINGS DIV 9350 20.9 18.4 114 20.7 17.7 118 BURGESS JUNCTION 7880 12.6 13.4 95 15.0 14.0 108 CLOUD PEAK RESERVOIR 9860 21.4 17.4 123 20.4 16.4 124 DOME LAKE 8880 -M 15.0 * 15.2 15.9 97 GRAVE SPRINGS 8550 11.4 11.4 100 15.1 12.0 127 HANSEN SAWMILL 8760 6.5 7.3 89 12.5 10.0 127 MIDDLE POWDER 7760 18.4 14.5 128 20.7 14.4 145 POWDER RIVER PASS 9480 13.4 11.0 121 17.9 14.1 127 SUCKER CREEK 8880 14.7 13.7 108 18.2 16.0 114 TIE CREEK 6870 -M -M * -M 13.4 * ----- ----- Basin wide percent of average 109 120 BELLE FOURCHE BLIND PARK 6890 3.8 10.5 36 17.7 13.1 136 NORTH RAPID CREEK 6130 4.8 -M * 16.0 -M * WARREN PEAK 6520 11.0 10.5 105 12.7 10.0 129 ----- ----- Basin wide percent of average 71 133 UPPER N. PLATTE RIVER COLUMBINE 9400 18.2 23.0 79 26.4 27.4 96 DIVIDE PEAK 8800 22.7 20.4 112 28.7 26.5 108 ELK RIVER 8700 16.4 17.9 92 25.5 21.7 119 JOE WRIGHT 10120 23.0 24.7 94 29.7 29.4 102 NORTH FRENCH CREEK 10100 36.3 29.0 125 34.8 27.2 128 OLD BATTLE 10000 35.2 37.4 94 41.5 34.8 120 SOUTH BRUSH CREEK 8400 10.0 11.5 87 21.7 19.9 110 TOWER 10500 52.8 50.4 105 44.8 41.9 107 WEBBER SPRINGS 9200 21.5 27.0 80 30.5 29.7 104 WILLOW CREEK PASS 9540 14.5 13.5 107 14.0 15.0 94 ----- ----- Basin wide percent of average 99 109 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.4 29.0 74 28.2 23.0 123 CASPER MTN. 7900 15.2 18.4 84 20.7 17.9 116 DEADMAN HILL 10220 19.7 18.7 105 20.9 20.4 103 DEER PARK 9700 24.0 -M * -M -M * LAPRELE CREEK 8320 .0 7.8 0 18.4 14.2 130 RENO HILL 8400 17.7 14.2 124 23.7 21.9 109 ROACH 9700 18.7 18.2 103 24.2 24.9 97 SAND LAKE 10080 43.0 36.8 118 34.8 24.0 145 SOUTH PASS 9040 -M 18.0 * 26.2 20.0 132 WINDY PEAK 7840 8.0 8.5 93 16.0 11.7 136 ----- ----- Basin wide percent of average 95 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.3 7.1 102 20.5 17.9 115 DIVIDE PEAK 8800 22.7 20.4 112 28.7 26.5 108 OLD BATTLE 10000 35.2 37.4 94 41.5 34.8 120 SANDSTONE RS 8150 10.5 12.0 89 23.4 22.2 106 WHISKEY PARK 8950 30.5 30.2 102 33.8 32.9 103 ----- ----- Basin wide percent of average 100 111 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.9 14.5 117 17.2 18.2 95 BLIND BULL SUM 8650 30.4 25.9 118 23.9 26.5 91 EAST RIM DIVIDE 7930 14.5 15.0 98 15.4 17.0 91 ELKHART PARK G.S. 9400 15.1 14.5 105 16.5 17.9 93 GROS VENTRE SUMMIT 8775 -M 14.7 * -M 17.9 * KENDALL R.S. 7740 14.4 11.6 124 17.9 17.4 104 LOOMIS PARK 8240 -M 15.9 * 21.9 21.0 104 NEW FORK LAKE 8340 12.7 9.9 130 13.5 16.2 84 SNIDER BASIN 8250 19.7 14.0 141 19.9 16.9 118 SPRING CREEK DIVIDE 9000 33.8 29.7 115 31.5 30.4 104 TRIPLE PEAK 8500 29.9 25.9 116 32.8 34.4 96 ----- ----- Basin wide percent of average 117 98 LOWER GREEN RIVER HAMS FORK 7840 12.6 5.8 218 14.9 15.0 99 HEWINTA 9500 12.0 6.8 178 16.5 15.7 106 HICKERSON PARK 9150 6.1 4.3 142 12.5 11.9 106 HOLE-IN-ROCK 9150 9.4 3.8 245 13.2 11.9 112 INDIAN CREEK 9425 35.2 29.5 119 29.5 28.7 103 KELLEY R.S. 8180 17.0 16.0 107 21.2 20.9 101 STEEL CREEK PARK 10100 17.7 18.7 95 19.5 15.5 126 ----- ----- Basin wide percent of average 130 107 UPPER BEAR RIVER BUG LAKE 7950 23.9 17.5 137 24.0 22.2 109 HAYDEN FORK 9400 12.7 8.2 155 22.9 22.4 103 KELLEY R.S. 8180 17.0 16.0 107 21.2 20.9 101 LILY LAKE 9050 12.2 10.4 119 20.4 17.4 117 MONTE CRISTO 8960 31.9 27.4 117 30.7 29.4 105 SALT RIVER SUMMIT 7600 15.6 12.0 131 19.9 18.9 106 TRIAL LAKE 9960 21.7 24.9 88 24.9 27.5 91 ----- ----- Basin wide percent of average 117 104 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. 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.