Supercell over Laramie
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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 WEDNESDAY: MAY 26 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.8 1.7 218* 30.9 27.4 113 COTTONWOOD CREEK 7600 13.7 5.0 275 36.8 30.7 121 GRANITE CREEK 6770 5.8 3.8 157 27.9 29.4 96 GRASSY LAKE 7265 29.7 17.4 171 49.9 45.5 110 GROS VENTRE SUMMIT 8775 11.5 3.7 320 20.4 19.9 104 LEWIS LAKE DIVIDE 7860 33.2 23.4 143 46.3 46.3 100 PHILLIPS BENCH 8200 25.9 20.4 127 37.4 36.5 103 SALT RIVER SUMMIT 7600 .9 .0 * 23.2 21.0 111 SNAKE RIVER STATION 6920 .0 4.1 22 30.4 32.0 95 SPRING CREEK DIVIDE 9000 31.7 21.5 148 36.3 33.3 110 THUMB DIVIDE 7980 -M 4.0 * -M 25.7 * TOGWOTEE PASS 9580 -M 24.5 * 35.8 34.8 104 TWO OCEAN PLATEAU 9360 37.9 23.9 159 37.3 37.8 99 WILLOW CREEK 8450 23.7 22.4 106 49.0 39.3 125 ----- ----- Basin wide percent of average 148 107 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 24.7 21.4 116 28.4 24.4 117 BLACK BEAR 7950 54.8 30.9 178 60.3 49.9 121 CANYON 7940 6.5 3.3 197 22.9 18.4 125 FISHER CREEK 9100 40.8 33.8 121 44.2 46.2 96 MADISON PLATEAU 7750 -M 11.6 * 39.3 32.8 121 NORTHEAST ENTRANCE 7350 .2 1.2 10 18.0 16.0 113 PARKER PEAK 9400 20.9 20.2 104 -M 20.9 * SYLVAN LAKE 8420 24.4 16.4 149 36.3 25.7 142 THUMB DIVIDE 7980 -M 4.0 * -M 25.7 * TWO OCEAN PLATEAU 9360 37.9 23.9 159 37.3 37.8 99 WHISKEY CREEK 6800 11.6 4.3 277 30.4 27.2 113 WHITE MILL 8700 26.9 21.4 126 30.4 35.9 85 WOLVERINE 7650 .0 1.2 0* 15.0 17.7 86 ----- ----- Basin wide percent of average 140 110 WIND RIVER BURROUGHS CREEK 8750 13.4 3.8 351 23.7 22.0 108 COLD SPRINGS 9630 12.5 1.2 1042 24.9 15.6 160 DEER PARK 9700 23.7 -M * 34.3 -M * HOBBS PARK 10100 24.9 12.0 208 29.2 20.4 144 LITTLE WARM 9620 13.0 2.4 542 25.2 18.9 135 SOUTH PASS 9040 18.9 12.4 153 31.4 23.4 134 ST. LAWRENCE ALT 8620 4.3 1.0 421 21.9 14.5 153 TOGWOTEE PASS 9580 -M 24.5 * 35.8 34.8 104 TOWNSEND CREEK 8700 11.4 3.4 333 26.7 18.2 148 ----- ----- Basin wide percent of average 272 131 BIGHORN BASIN BALD MTN. 9375 23.5 20.7 115 26.2 24.5 107 BEAR TRAP MEADOW 7900 .7 .5 140* 18.4 13.4 139 BLACKWATER 9780 31.9 21.0 152 31.4 23.4 134 BONE SPRINGS DIV 9350 20.4 11.2 183 26.4 21.5 123 EVENING STAR 9200 32.8 27.2 121 41.2 29.2 141 GRAVE SPRINGS 8550 3.5 5.3 68 19.0 15.5 123 KIRWIN 9550 14.2 7.0 206 21.7 15.7 138 MARQUETTE 8760 15.7 5.5 291 22.0 16.7 133 MIDDLE POWDER 7760 10.4 6.6 157 22.9 17.7 131 OWL CREEK 8975 5.3 .5 1041* 15.7 10.2 154 POWDER RIVER PASS 9480 7.8 3.2 252 23.0 17.7 131 SHELL CREEK 9580 17.0 13.4 128 21.5 19.2 113 SYLVAN LAKE 8420 24.4 16.4 149 36.3 25.7 142 SYLVAN ROAD 8120 1.0 2.2 48 22.7 21.2 107 TIMBER CREEK 7950 6.0 1.2 537 18.4 13.1 141 YOUNTS PEAK 8350 17.5 11.5 153 22.9 21.9 106 ----- ----- Basin wide percent of average 152 128 SHOSHONE RIVER BLACKWATER 9780 31.9 21.0 152 31.4 23.4 134 EVENING STAR 9200 32.8 27.2 121 41.2 29.2 141 KIRWIN 9550 14.2 7.0 206 21.7 15.7 138 MARQUETTE 8760 15.7 5.5 291 22.0 16.7 133 SYLVAN LAKE 8420 24.4 16.4 149 36.3 25.7 142 SYLVAN ROAD 8120 1.0 2.2 48 22.7 21.2 107 YOUNTS PEAK 8350 17.5 11.5 153 22.9 21.9 106 ----- ----- Basin wide percent of average 152 129 POWDER-TONGUE BEAR TRAP MEADOW 7900 .7 .5 140* 18.4 13.4 139 BIG GOOSE 7990 5.3 -M * 19.9 -M * BONE SPRINGS DIV 9350 20.4 11.2 183 26.4 21.5 123 BURGESS JUNCTION 7880 7.8 5.5 142 18.9 17.2 111 CLOUD PEAK RESERVOIR 9860 20.2 11.1 182 26.0 20.5 127 DOME LAKE 8880 -M 6.3 * 18.9 19.5 97 GRAVE SPRINGS 8550 3.5 5.3 68 19.0 15.5 123 HANSEN SAWMILL 8760 .0 2.0 0 18.0 12.5 145 MIDDLE POWDER 7760 10.4 6.6 157 22.9 17.7 131 POWDER RIVER PASS 9480 7.8 3.2 252 23.0 17.7 131 SUCKER CREEK 8880 11.4 6.3 180 23.5 19.9 119 TIE CREEK 6870 .3 -M * 19.4 16.4 119 ----- ----- Basin wide percent of average 160 123 BELLE FOURCHE BLIND PARK 6890 .0 1.7 0 21.4 17.4 123 NORTH RAPID CREEK 6130 .0 -M * 18.2 -M * WARREN PEAK 6520 .0 1.7 0 -M 12.9 * ----- ----- Basin wide percent of average 0 123* UPPER N. PLATTE RIVER COLUMBINE 9400 .3 6.8 5 30.2 30.4 100 DIVIDE PEAK 8800 8.2 6.3 131 32.8 30.2 109 ELK RIVER 8700 .0 3.3 0 30.0 24.2 125 JOE WRIGHT 10120 19.9 19.5 102 34.4 34.2 101 NORTH FRENCH CREEK 10100 38.3 22.5 171 39.8 31.5 127 OLD BATTLE 10000 36.5 28.7 128 49.3 38.9 127 SOUTH BRUSH CREEK 8400 7.0 2.8 251 27.4 22.9 120 TOWER 10500 47.7 46.8 102 51.0 48.3 106 WEBBER SPRINGS 9200 11.5 14.0 82 35.5 33.3 107 WILLOW CREEK PASS 9540 8.9 5.3 167 17.2 17.9 97 ----- ----- Basin wide percent of average 115 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.2 17.2 124 33.2 26.5 125 CASPER MTN. 7900 .6 6.3 10 23.9 22.2 108 DEADMAN HILL 10220 16.0 13.2 122 25.0 24.0 105 DEER PARK 9700 23.7 -M * 34.3 -M * LAPRELE CREEK 8320 .0 1.9 0 21.9 17.5 126 RENO HILL 8400 3.2 5.0 63 27.2 24.0 113 ROACH 9700 -M 10.5 * 26.9 29.4 92 SAND LAKE 10080 46.3 28.5 163 40.8 27.9 147 SOUTH PASS 9040 18.9 12.4 153 31.4 23.4 134 WINDY PEAK 7840 .0 1.4 0 19.0 15.1 126 ----- ----- Basin wide percent of average 124 119 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * 24.0 20.5 118 DIVIDE PEAK 8800 8.2 6.3 131 32.8 30.2 109 OLD BATTLE 10000 36.5 28.7 128 49.3 38.9 127 SANDSTONE RS 8150 .0 .0 0* 27.2 25.5 107 WHISKEY PARK 8950 -M 16.7 * 39.7 37.5 106 ----- ----- Basin wide percent of average 125* 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.5 3.5 212 20.0 20.2 100 BLIND BULL SUM 8650 32.7 18.7 176 28.7 29.0 99 EAST RIM DIVIDE 7930 9.2 9.1 102 18.4 18.9 98 ELKHART PARK G.S. 9400 9.5 6.5 147 20.0 19.9 101 GROS VENTRE SUMMIT 8775 11.5 3.7 320 20.4 19.9 104 KENDALL R.S. 7740 .3 .0 * 20.5 19.4 107 LOOMIS PARK 8240 -M 4.0 * 25.4 23.4 109 NEW FORK LAKE 8340 2.3 2.3 105 17.4 18.0 97 SNIDER BASIN 8250 8.0 3.0 264 23.2 18.9 123 SPRING CREEK DIVIDE 9000 31.7 21.5 148 36.3 33.3 110 TRIPLE PEAK 8500 20.5 17.0 121 39.4 38.2 104 ----- ----- Basin wide percent of average 157 105 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * 18.5 16.7 112 HEWINTA 9500 3.7 .0 * 20.5 18.5 111 HICKERSON PARK 9150 .0 .3 0* 16.2 14.7 110 HOLE-IN-ROCK 9150 .0 .3 0* 16.0 14.7 109 INDIAN CREEK 9425 31.4 20.2 157 35.0 31.7 111 KELLEY R.S. 8180 6.3 3.7 175 24.9 23.4 106 STEEL CREEK PARK 10100 19.9 13.7 146 24.9 19.2 130 ----- ----- Basin wide percent of average 152* 113 UPPER BEAR RIVER BUG LAKE 7950 12.4 5.1 242 29.7 24.5 122 HAYDEN FORK 9400 4.5 .3 1467* 29.2 25.7 115 KELLEY R.S. 8180 6.3 3.7 175 24.9 23.4 106 LILY LAKE 9050 3.3 2.8 123 25.5 20.7 124 MONTE CRISTO 8960 31.9 14.1 226 38.5 33.2 117 SALT RIVER SUMMIT 7600 .9 .0 * 23.2 21.0 111 TRIAL LAKE 9960 21.4 15.2 141 31.9 31.2 103 ----- ----- Basin wide percent of average 194 114 ----------------------------------------------------------------------------- -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.