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 FRIDAY: APRIL 30 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 17.4 11.1 157 29.2 25.2 116 COTTONWOOD CREEK 7600 23.9 20.4 118 32.0 28.2 114 GRANITE CREEK 6770 18.2 13.4 137 26.4 26.9 99 GRASSY LAKE 7265 41.8 34.3 123 45.0 41.8 108 GROS VENTRE SUMMIT 8775 17.2 14.1 122 18.0 18.2 100 LEWIS LAKE DIVIDE 7860 39.8 34.7 115 42.8 42.5 101 PHILLIPS BENCH 8200 37.5 29.7 127 35.4 33.7 106 SALT RIVER SUMMIT 7600 14.7 11.0 134 20.9 19.2 109 SNAKE RIVER STATION 6920 16.2 16.7 98 28.2 29.4 96 SPRING CREEK DIVIDE 9000 35.3 29.7 120 32.8 30.9 107 THUMB DIVIDE 7980 20.9 15.4 137 24.7 23.7 105 TOGWOTEE PASS 9580 -M 28.4 * 32.5 31.9 102 TWO OCEAN PLATEAU 9360 39.3 27.7 143 34.7 34.7 100 WILLOW CREEK 8450 33.2 31.9 104 43.2 36.2 120 ----- ----- Basin wide percent of average 123 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 28.4 26.0 109 27.2 21.2 128 BLACK BEAR 7950 -M 39.9 * 49.3 46.4 107 CANYON 7940 16.2 11.1 146 20.9 16.4 128 FISHER CREEK 9100 -M 38.8 * 41.0 42.2 98 MADISON PLATEAU 7750 -M 24.0 * 34.7 29.9 117 NORTHEAST ENTRANCE 7350 7.0 6.1 114 16.2 14.0 116 PARKER PEAK 9400 27.7 23.7 117 -M 18.2 * SYLVAN LAKE 8420 26.0 23.9 109 31.0 22.4 140 THUMB DIVIDE 7980 20.9 15.4 137 24.7 23.7 105 TWO OCEAN PLATEAU 9360 39.3 27.7 143 34.7 34.7 100 WHISKEY CREEK 6800 20.7 15.5 135 26.5 24.9 107 WHITE MILL 8700 30.4 26.4 116 28.0 32.5 87 WOLVERINE 7650 9.5 8.5 114 15.0 15.2 99 ----- ----- Basin wide percent of average 123 108 WIND RIVER BURROUGHS CREEK 8750 19.0 13.1 146 21.2 19.4 109 COLD SPRINGS 9630 -M 7.0 * -M 13.1 * DEER PARK 9700 25.7 -M * 31.4 -M * HOBBS PARK 10100 28.7 18.0 159 25.7 17.2 149 LITTLE WARM 9620 -M 10.6 * -M 16.4 * SOUTH PASS 9040 24.9 18.2 138 28.9 20.5 141 ST. LAWRENCE ALT 8620 14.5 5.6 259 20.2 12.5 161 TOGWOTEE PASS 9580 -M 28.4 * 32.5 31.9 102 TOWNSEND CREEK 8700 19.5 9.6 204 24.7 15.5 160 ----- ----- Basin wide percent of average 166 131 BIGHORN BASIN BALD MTN. 9375 22.2 24.0 93 21.7 20.7 105 BEAR TRAP MEADOW 7900 2.0 4.5 46 13.7 10.6 130 BLACKWATER 9780 35.0 25.7 137 28.7 20.7 139 BONE SPRINGS DIV 9350 20.5 18.4 112 21.4 18.2 118 EVENING STAR 9200 37.2 30.9 121 39.3 25.9 152 GRAVE SPRINGS 8550 11.5 11.6 99 16.4 12.5 132 KIRWIN 9550 16.7 11.7 142 19.2 13.4 144 MARQUETTE 8760 17.4 8.7 199 18.5 13.5 139 MIDDLE POWDER 7760 17.0 14.9 115 21.5 14.9 146 OWL CREEK 8975 -M 3.5 * -M 8.1 * POWDER RIVER PASS 9480 13.4 10.6 126 18.9 14.6 130 SHELL CREEK 9580 18.0 17.0 106 18.0 16.0 114 SYLVAN LAKE 8420 26.0 23.9 109 31.0 22.4 140 SYLVAN ROAD 8120 12.6 8.1 156 21.4 18.7 115 TIMBER CREEK 7950 10.5 6.1 171 15.0 10.0 150 YOUNTS PEAK 8350 21.9 18.4 119 21.2 19.4 110 ----- ----- Basin wide percent of average 121 130 SHOSHONE RIVER BLACKWATER 9780 35.0 25.7 137 28.7 20.7 139 EVENING STAR 9200 37.2 30.9 121 39.3 25.9 152 KIRWIN 9550 16.7 11.7 142 19.2 13.4 144 MARQUETTE 8760 17.4 8.7 199 18.5 13.5 139 SYLVAN LAKE 8420 26.0 23.9 109 31.0 22.4 140 SYLVAN ROAD 8120 12.6 8.1 156 21.4 18.7 115 YOUNTS PEAK 8350 21.9 18.4 119 21.2 19.4 110 ----- ----- Basin wide percent of average 131 135 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.0 4.5 46 13.7 10.6 130 BIG GOOSE 7990 10.7 -M * 16.7 -M * BONE SPRINGS DIV 9350 20.5 18.4 112 21.4 18.2 118 BURGESS JUNCTION 7880 11.6 13.5 86 15.5 14.5 108 CLOUD PEAK RESERVOIR 9860 23.5 17.7 133 22.5 17.0 133 DOME LAKE 8880 -M 15.0 * 16.2 16.4 100 GRAVE SPRINGS 8550 11.5 11.6 99 16.4 12.5 132 HANSEN SAWMILL 8760 6.8 7.0 98 14.7 10.4 143 MIDDLE POWDER 7760 17.0 14.9 115 21.5 14.9 146 POWDER RIVER PASS 9480 13.4 10.6 126 18.9 14.6 130 SUCKER CREEK 8880 14.7 13.9 107 19.0 16.4 116 TIE CREEK 6870 -M -M * -M 13.9 * ----- ----- Basin wide percent of average 109 124 BELLE FOURCHE BLIND PARK 6890 .0 9.9 0 17.9 13.7 130 NORTH RAPID CREEK 6130 1.4 -M * 16.4 -M * WARREN PEAK 6520 7.8 9.9 80 13.1 10.4 128 ----- ----- Basin wide percent of average 40 129 UPPER N. PLATTE RIVER COLUMBINE 9400 16.7 22.4 75 27.2 28.0 97 DIVIDE PEAK 8800 21.5 19.5 111 29.7 27.2 109 ELK RIVER 8700 14.7 16.5 90 26.5 22.2 120 JOE WRIGHT 10120 23.2 24.7 94 30.9 30.2 102 NORTH FRENCH CREEK 10100 38.3 29.4 130 36.8 27.9 132 OLD BATTLE 10000 36.5 38.2 96 43.0 35.7 121 SOUTH BRUSH CREEK 8400 9.5 10.9 88 22.9 20.5 112 TOWER 10500 54.7 51.0 108 46.0 43.0 107 WEBBER SPRINGS 9200 21.4 26.2 82 31.4 30.5 103 WILLOW CREEK PASS 9540 15.0 13.5 111 14.5 15.5 95 ----- ----- Basin wide percent of average 100 111 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 23.7 29.0 82 29.7 23.7 125 CASPER MTN. 7900 14.2 17.9 80 21.2 18.7 114 DEADMAN HILL 10220 20.7 19.2 109 22.2 21.0 106 DEER PARK 9700 25.7 -M * 31.4 -M * LAPRELE CREEK 8320 .0 6.6 0 19.7 14.7 134 RENO HILL 8400 16.2 13.6 120 24.4 22.4 110 ROACH 9700 19.9 18.2 109 24.9 25.7 97 SAND LAKE 10080 45.8 37.3 123 36.8 24.7 149 SOUTH PASS 9040 24.9 18.2 138 28.9 20.5 141 WINDY PEAK 7840 7.1 8.0 89 17.4 12.2 143 ----- ----- Basin wide percent of average 103 123 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.8 5.3 93 21.7 18.4 118 DIVIDE PEAK 8800 21.5 19.5 111 29.7 27.2 109 OLD BATTLE 10000 36.5 38.2 96 43.0 35.7 121 SANDSTONE RS 8150 9.0 10.2 88 24.4 22.9 107 WHISKEY PARK 8950 30.7 29.7 104 34.9 33.9 103 ----- ----- Basin wide percent of average 100 112 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.7 14.0 120 18.0 18.5 98 BLIND BULL SUM 8650 32.0 23.4 138 25.9 26.9 97 EAST RIM DIVIDE 7930 15.2 15.0 103 16.9 17.4 98 ELKHART PARK G.S. 9400 16.0 14.1 113 17.7 18.2 98 GROS VENTRE SUMMIT 8775 17.2 14.1 122 18.0 18.2 100 KENDALL R.S. 7740 13.2 10.9 123 18.9 17.7 108 LOOMIS PARK 8240 -M 15.4 * 23.2 21.4 109 NEW FORK LAKE 8340 13.0 9.4 140 14.7 16.4 90 SNIDER BASIN 8250 20.7 13.2 157 21.2 17.2 123 SPRING CREEK DIVIDE 9000 35.3 29.7 120 32.8 30.9 107 TRIPLE PEAK 8500 31.9 25.2 127 35.7 34.9 103 ----- ----- Basin wide percent of average 126 103 LOWER GREEN RIVER HAMS FORK 7840 11.2 5.8 194 16.2 15.2 106 HEWINTA 9500 13.0 5.6 231 17.9 16.2 110 HICKERSON PARK 9150 6.0 3.3 188 13.5 12.4 110 HOLE-IN-ROCK 9150 9.2 2.7 354 14.0 12.4 114 INDIAN CREEK 9425 36.0 29.0 125 30.9 29.2 106 KELLEY R.S. 8180 17.2 15.2 114 22.5 21.4 106 STEEL CREEK PARK 10100 19.7 18.9 104 21.4 16.0 134 ----- ----- Basin wide percent of average 140 112 UPPER BEAR RIVER BUG LAKE 7950 25.2 16.4 154 26.4 22.7 117 HAYDEN FORK 9400 13.9 7.0 200 25.2 22.9 111 KELLEY R.S. 8180 17.2 15.2 114 22.5 21.4 106 LILY LAKE 9050 13.5 9.0 150 22.4 17.9 125 MONTE CRISTO 8960 35.9 26.4 136 33.7 30.2 112 SALT RIVER SUMMIT 7600 14.7 11.0 134 20.9 19.2 109 TRIAL LAKE 9960 24.9 24.2 103 27.7 28.2 98 ----- ----- Basin wide percent of average 134 110 ----------------------------------------------------------------------------- -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.