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 THURSDAY: MAY 27 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 2.4 1.5 161* 30.9 27.5 113 COTTONWOOD CREEK 7600 12.5 4.3 296 36.8 30.7 120 GRANITE CREEK 6770 4.8 3.4 142 28.0 29.4 96 GRASSY LAKE 7265 27.9 16.5 169 49.8 45.7 110 GROS VENTRE SUMMIT 8775 10.9 3.0 361 20.4 19.9 104 LEWIS LAKE DIVIDE 7860 31.9 22.7 141 46.3 46.4 100 PHILLIPS BENCH 8200 24.5 19.9 124 37.4 36.7 103 SALT RIVER SUMMIT 7600 .5 .0 * 23.2 21.2 110 SNAKE RIVER STATION 6920 .2 3.4 3 30.4 32.0 95 SPRING CREEK DIVIDE 9000 30.0 21.2 143 36.3 33.4 109 THUMB DIVIDE 7980 8.5 3.3 258 28.2 25.7 110 TOGWOTEE PASS 9580 -M 24.4 * 35.8 34.8 103 TWO OCEAN PLATEAU 9360 37.0 23.7 157 37.3 37.9 99 WILLOW CREEK 8450 22.2 21.9 102 49.2 39.4 125 ----- ----- Basin wide percent of average 147 107 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 24.5 21.2 117 28.4 24.4 116 BLACK BEAR 7950 54.0 30.4 179 60.3 50.0 121 CANYON 7940 5.5 3.0 181 22.9 18.5 124 FISHER CREEK 9100 39.8 33.4 119 44.3 46.3 96 MADISON PLATEAU 7750 -M 11.0 * 39.3 32.8 120 NORTHEAST ENTRANCE 7350 .0 1.0 0* 18.2 16.2 113 PARKER PEAK 9400 19.9 19.9 100 -M 21.0 * SYLVAN LAKE 8420 22.9 16.2 142 36.3 25.7 142 THUMB DIVIDE 7980 8.5 3.3 258 28.2 25.7 110 TWO OCEAN PLATEAU 9360 37.0 23.7 157 37.3 37.9 99 WHISKEY CREEK 6800 10.6 3.8 287 30.4 27.2 112 WHITE MILL 8700 26.4 21.2 125 30.4 36.0 85 WOLVERINE 7650 .0 .0 0* 15.5 17.7 88 ----- ----- Basin wide percent of average 141 110 WIND RIVER BURROUGHS CREEK 8750 12.9 3.5 366 23.7 22.0 108 COLD SPRINGS 9630 11.9 1.2 1073 25.4 15.7 162 DEER PARK 9700 23.2 -M * 34.2 -M * HOBBS PARK 10100 24.2 11.6 209 29.4 20.4 145 LITTLE WARM 9620 12.4 2.2 586 25.2 18.9 134 SOUTH PASS 9040 18.0 12.0 150 31.4 23.5 134 ST. LAWRENCE ALT 8620 3.0 .9 375 22.0 14.5 152 TOGWOTEE PASS 9580 -M 24.4 * 35.8 34.8 103 TOWNSEND CREEK 8700 10.4 3.2 333 26.7 18.2 147 ----- ----- Basin wide percent of average 271 131 BIGHORN BASIN BALD MTN. 9375 23.0 20.4 114 26.2 24.7 107 BEAR TRAP MEADOW 7900 .7 .5 140* 18.9 13.5 142 BLACKWATER 9780 31.5 20.7 153 31.4 23.5 134 BONE SPRINGS DIV 9350 19.2 10.7 180 26.4 21.7 123 EVENING STAR 9200 32.2 27.0 119 41.2 29.4 141 GRAVE SPRINGS 8550 2.7 4.8 56 19.7 15.6 127 KIRWIN 9550 13.7 6.6 208 21.7 15.9 138 MARQUETTE 8760 15.1 5.3 291 22.2 16.7 133 MIDDLE POWDER 7760 9.0 6.0 153 23.2 17.7 132 OWL CREEK 8975 4.5 .5 1101* 16.0 10.4 155 POWDER RIVER PASS 9480 7.3 2.8 258 23.4 17.7 132 SHELL CREEK 9580 16.0 13.0 123 21.5 19.2 112 SYLVAN LAKE 8420 22.9 16.2 142 36.3 25.7 142 SYLVAN ROAD 8120 1.0 1.9 53 22.5 21.4 106 TIMBER CREEK 7950 5.5 .0 601 18.4 13.2 140 YOUNTS PEAK 8350 16.9 11.1 152 22.9 21.9 105 ----- ----- Basin wide percent of average 150 128 SHOSHONE RIVER BLACKWATER 9780 31.5 20.7 153 31.4 23.5 134 EVENING STAR 9200 32.2 27.0 119 41.2 29.4 141 KIRWIN 9550 13.7 6.6 208 21.7 15.9 138 MARQUETTE 8760 15.1 5.3 291 22.2 16.7 133 SYLVAN LAKE 8420 22.9 16.2 142 36.3 25.7 142 SYLVAN ROAD 8120 1.0 1.9 53 22.5 21.4 106 YOUNTS PEAK 8350 16.9 11.1 152 22.9 21.9 105 ----- ----- Basin wide percent of average 151 129 POWDER-TONGUE BEAR TRAP MEADOW 7900 .7 .5 140* 18.9 13.5 142 BIG GOOSE 7990 4.3 -M * 19.9 -M * BONE SPRINGS DIV 9350 19.2 10.7 180 26.4 21.7 123 BURGESS JUNCTION 7880 7.0 5.0 141 18.9 17.2 110 CLOUD PEAK RESERVOIR 9860 19.4 10.6 184 26.2 20.7 127 DOME LAKE 8880 -M 5.8 * 18.7 19.7 95 GRAVE SPRINGS 8550 2.7 4.8 56 19.7 15.6 127 HANSEN SAWMILL 8760 .0 1.9 0 18.2 12.6 144 MIDDLE POWDER 7760 9.0 6.0 153 23.2 17.7 132 POWDER RIVER PASS 9480 7.3 2.8 258 23.4 17.7 132 SUCKER CREEK 8880 10.5 6.0 174 23.4 19.9 118 TIE CREEK 6870 .3 -M * 19.4 16.5 118 ----- ----- Basin wide percent of average 158 123 BELLE FOURCHE BLIND PARK 6890 .0 1.4 0 21.5 17.5 123 NORTH RAPID CREEK 6130 .0 -M * 18.9 -M * WARREN PEAK 6520 .0 1.5 0 -M 13.0 * ----- ----- Basin wide percent of average 0 123* UPPER N. PLATTE RIVER COLUMBINE 9400 .0 6.1 0 30.4 30.5 100 DIVIDE PEAK 8800 7.0 5.8 119 32.8 30.4 108 ELK RIVER 8700 .0 2.8 0 30.2 24.2 125 JOE WRIGHT 10120 19.4 19.2 102 34.8 34.3 102 NORTH FRENCH CREEK 10100 37.0 22.2 167 39.9 31.7 126 OLD BATTLE 10000 36.3 27.9 131 49.3 39.0 127 SOUTH BRUSH CREEK 8400 7.0 2.5 281 27.4 22.9 120 TOWER 10500 47.3 46.3 103 51.0 48.5 106 WEBBER SPRINGS 9200 10.4 13.5 77 35.5 33.3 107 WILLOW CREEK PASS 9540 8.1 4.8 169 17.4 17.9 98 ----- ----- Basin wide percent of average 115 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.4 16.4 131 33.5 26.7 126 CASPER MTN. 7900 .3 5.8 6 24.2 22.4 109 DEADMAN HILL 10220 15.9 12.7 125 25.4 24.2 105 DEER PARK 9700 23.2 -M * 34.2 -M * LAPRELE CREEK 8320 .0 1.9 0 22.9 17.7 130 RENO HILL 8400 2.0 4.6 44 27.5 24.0 115 ROACH 9700 -M 10.0 * 26.9 29.5 92 SAND LAKE 10080 46.3 27.9 167 41.4 27.9 149 SOUTH PASS 9040 18.0 12.0 150 31.4 23.5 134 WINDY PEAK 7840 .0 1.2 0 19.7 15.2 129 ----- ----- Basin wide percent of average 127 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * 24.0 20.7 117 DIVIDE PEAK 8800 7.0 5.8 119 32.8 30.4 108 OLD BATTLE 10000 36.3 27.9 131 49.3 39.0 127 SANDSTONE RS 8150 .0 .7 0* 27.2 25.7 107 WHISKEY PARK 8950 -M 16.0 * 39.7 37.8 106 ----- ----- Basin wide percent of average 126* 113 UPPER GREEN RIVER BIG SANDY OPENING 9100 6.6 2.9 228 20.0 20.4 99 BLIND BULL SUM 8650 32.3 18.2 177 28.7 29.2 99 EAST RIM DIVIDE 7930 8.4 8.7 96 18.4 18.9 98 ELKHART PARK G.S. 9400 8.7 6.0 145 20.0 19.9 101 GROS VENTRE SUMMIT 8775 10.9 3.0 361 20.4 19.9 104 KENDALL R.S. 7740 .2 .0 * 20.5 19.4 106 LOOMIS PARK 8240 -M 3.4 * 25.4 23.5 109 NEW FORK LAKE 8340 1.4 1.9 69 17.4 18.0 97 SNIDER BASIN 8250 6.6 2.5 265 23.2 18.9 123 SPRING CREEK DIVIDE 9000 30.0 21.2 143 36.3 33.4 109 TRIPLE PEAK 8500 19.0 16.7 114 39.4 38.3 104 ----- ----- Basin wide percent of average 153 104 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 18.5 16.7 111 HEWINTA 9500 2.4 .0 * 20.5 18.7 111 HICKERSON PARK 9150 .0 .3 0* 16.0 14.9 109 HOLE-IN-ROCK 9150 .0 .3 0* 16.0 14.9 108 INDIAN CREEK 9425 30.4 19.7 154 35.0 31.9 110 KELLEY R.S. 8180 5.1 3.0 170 24.9 23.4 106 STEEL CREEK PARK 10100 19.4 13.5 145 24.9 19.4 129 ----- ----- Basin wide percent of average 150* 112 UPPER BEAR RIVER BUG LAKE 7950 10.9 4.6 235 29.7 24.7 121 HAYDEN FORK 9400 3.5 .3 1167* 29.4 25.7 115 KELLEY R.S. 8180 5.1 3.0 170 24.9 23.4 106 LILY LAKE 9050 -M 2.4 * -M 20.7 * MONTE CRISTO 8960 30.0 13.5 224 38.5 33.3 116 SALT RIVER SUMMIT 7600 .5 .0 * 23.2 21.2 110 TRIAL LAKE 9960 20.2 14.7 138 31.9 31.2 103 ----- ----- Basin wide percent of average 194 112 ----------------------------------------------------------------------------- -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.