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 SATURDAY: MAY 24 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 6.2 2.3 270 39.6 27.2 146 COTTONWOOD CREEK 7600 12.9 6.6 195 41.0 30.4 135 GRANITE CREEK 6770 10.0 4.3 233 36.0 29.0 124 GRASSY LAKE 7265 24.4 19.2 127 62.7 45.2 139 GROS VENTRE SUMMIT 8775 10.0 4.8 208 23.7 19.6 121 LEWIS LAKE DIVIDE 7860 35.1 24.4 144 65.1 45.9 142 PHILLIPS BENCH 8200 29.6 21.2 140 51.9 36.2 143 SALT RIVER SUMMIT 7600 .0 .0 100* 27.7 20.8 133 SNAKE RIVER STATION 6920 .1 5.4 2 41.9 31.7 132 SPRING CREEK DIVIDE 9000 24.6 22.3 110 37.9 33.0 115 THUMB DIVIDE 7980 8.9 5.3 168 38.3 25.5 150 TOGWOTEE PASS 9580 26.9 24.7 109 40.5 34.4 118 TWO OCEAN PLATEAU 9360 39.6 24.3 163 -M 37.4 * WILLOW CREEK 8450 25.1 23.2 108 55.2 39.0 142 ----- ----- Basin wide percent of average 135 134 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 32.4 22.0 147 35.6 24.0 148 BLACK BEAR 7950 -M 32.0 * -M 49.5 * CANYON 7940 6.1 3.8 161 30.1 18.2 165 FISHER CREEK 9100 47.8 34.4 139 56.9 45.8 124 MADISON PLATEAU 7750 22.2 12.9 172 47.2 32.4 146 NORTHEAST ENTRANCE 7350 .2 1.3 15 23.7 15.8 150 PARKER PEAK 9400 26.9 20.5 131 28.5 20.6 138 SYLVAN LAKE 8420 19.3 17.2 112 38.0 25.3 150 THUMB DIVIDE 7980 8.9 5.3 168 38.3 25.5 150 TWO OCEAN PLATEAU 9360 39.6 24.3 163 -M 37.4 * WHISKEY CREEK 6800 7.9 5.1 155 35.9 26.9 133 WHITE MILL 8700 32.7 22.0 149 37.1 35.6 104 WOLVERINE 7650 .4 1.4 29 19.6 17.4 113 ----- ----- Basin wide percent of average 144 136 WIND RIVER BURROUGHS CREEK 8750 10.5 4.3 244 29.5 21.7 136 CHRISTINA LAKE 9980 14.7 13.3 111 28.1 22.6 124 COLD SPRINGS 9630 .2 1.5 13 17.0 15.3 111 HOBBS PARK 10100 15.2 12.9 118 19.8 20.0 99 LITTLE WARM 9620 2.6 2.9 90 26.2 18.5 142 SOUTH PASS 9040 16.6 13.1 127 30.2 23.1 131 ST. LAWRENCE ALT 8620 .0 1.2 0 16.5 14.2 116 TOGWOTEE PASS 9580 26.9 24.7 109 40.5 34.4 118 TOWNSEND CREEK 8700 .0 3.8 0 18.5 17.8 104 ----- ----- Basin wide percent of average 112 121 BIGHORN BASIN BALD MTN. 9375 19.6 21.3 92 23.0 24.1 95 BEAR TRAP MEADOW 7900 .2 .7 29* 13.8 13.0 106 BLACKWATER 9780 31.5 21.6 146 34.7 23.1 150 BONE SPRINGS DIV 9350 15.2 12.1 126 22.1 21.1 105 EVENING STAR 9200 34.3 27.8 123 47.1 28.9 163 GRAVE SPRINGS 8550 .3 -M * 15.0 15.2 99 KIRWIN 9550 -M 7.5 * -M 15.5 * LOST CREEK 8080 12.4 9.5 131 21.0 17.8 118 MARQUETTE 8760 4.8 5.7 84 17.1 16.3 105 MIDDLE POWDER 7760 5.4 7.9 68 19.6 17.3 113 OWL CREEK 8975 .2 .5 40 10.5 10.0 105 POWDER RIVER PASS 9480 9.2 3.6 256 19.4 17.3 112 SHELL CREEK 9580 14.6 13.9 105 19.8 18.8 105 SYLVAN LAKE 8420 19.3 17.2 112 38.0 25.3 150 SYLVAN ROAD 8120 .2 2.4 8 30.8 21.0 147 TIMBER CREEK 7950 .2 1.3 15 11.8 12.8 92 YOUNTS PEAK 8350 15.6 12.3 127 31.0 21.5 144 ----- ----- Basin wide percent of average 116 123 SHOSHONE RIVER BLACKWATER 9780 31.5 21.6 146 34.7 23.1 150 EVENING STAR 9200 34.3 27.8 123 47.1 28.9 163 KIRWIN 9550 -M 7.5 * -M 15.5 * MARQUETTE 8760 4.8 5.7 84 17.1 16.3 105 SYLVAN LAKE 8420 19.3 17.2 112 38.0 25.3 150 SYLVAN ROAD 8120 .2 2.4 8 30.8 21.0 147 YOUNTS PEAK 8350 15.6 12.3 127 31.0 21.5 144 ----- ----- Basin wide percent of average 121 146 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .7 29* 13.8 13.0 106 BONE SPRINGS DIV 9350 15.2 12.1 126 22.1 21.1 105 BURGESS JUNCTION 7880 7.8 6.4 122 18.4 16.8 110 CLOUD PEAK RESERVOIR 9860 14.6 12.0 122 21.5 20.2 106 DOME LAKE 8880 5.9 6.9 86 20.5 19.2 107 GRAVE SPRINGS 8550 .3 -M * 15.0 15.2 99 HANSEN SAWMILL 8760 .0 2.3 0 12.9 12.3 105 LOST CREEK 8080 12.4 9.5 131 21.0 17.8 118 MIDDLE POWDER 7760 5.4 7.9 68 19.6 17.3 113 POWDER RIVER PASS 9480 9.2 3.6 256 19.4 17.3 112 SUCKER CREEK 8880 10.6 7.1 149 22.6 19.5 116 TIE CREEK 6870 .1 -M * 18.3 16.2 113 ----- ----- Basin wide percent of average 119 109 BELLE FOURCHE BLIND PARK 6890 .0 2.2 0 20.9 17.1 122 NORTH RAPID CREEK 6130 .0 -M * 19.1 -M * WARREN PEAK 6520 .8 2.2 36 16.0 12.5 128 ----- ----- Basin wide percent of average 18 125 UPPER N. PLATTE RIVER COLUMBINE 9400 4.2 8.1 52 39.2 30.2 130 DIVIDE PEAK 8800 5.8 7.4 78 29.9 29.9 100 ELK RIVER 8700 2.4 4.1 59 31.3 23.9 131 JOE WRIGHT 10120 21.9 20.2 108 38.8 33.7 115 NORTH FRENCH CREEK 10100 28.0 23.3 120 37.1 31.2 119 OLD BATTLE 10000 39.1 30.1 130 47.0 38.6 122 SOUTH BRUSH CREEK 8400 .0 3.3 0 22.9 22.6 101 TOWER 10500 58.3 47.4 123 60.2 47.8 126 WEBBER SPRINGS 9200 17.8 15.1 118 42.8 32.9 130 WILLOW CREEK PASS 9540 14.2 6.2 229 22.3 17.6 127 ----- ----- Basin wide percent of average 116 120 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 23.2 18.5 125 35.3 26.2 135 CASPER MTN. 7900 9.3 7.1 131 27.6 21.8 127 CHRISTINA LAKE 9980 14.7 13.3 111 28.1 22.6 124 DEADMAN HILL 10220 15.4 14.2 108 25.8 23.7 109 LAPRELE CREEK 8320 .1 2.1 5 18.8 17.2 109 RENO HILL 8400 9.1 5.6 163 27.4 23.8 115 ROACH 9700 13.8 11.5 120 28.8 29.1 99 SAND LAKE 10080 35.0 29.7 118 37.6 27.5 137 SOUTH PASS 9040 16.6 13.1 127 30.2 23.1 131 WINDY PEAK 7840 .2 1.6 12 15.1 14.8 102 ----- ----- Basin wide percent of average 118 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * -M 20.3 * DIVIDE PEAK 8800 5.8 7.4 78 29.9 29.9 100 OLD BATTLE 10000 39.1 30.1 130 47.0 38.6 122 SANDSTONE RS 8150 .0 1.1 0* 26.6 25.2 106 WHISKEY PARK 8950 35.5 18.3 194 41.5 37.2 112 ----- ----- Basin wide percent of average 141 111 UPPER GREEN RIVER BIG SANDY OPENING 9100 .1 4.6 2 19.8 20.1 99 BLIND BULL SUM 8650 42.0 19.2 219 37.6 28.8 131 EAST RIM DIVIDE 7930 3.9 9.7 40 19.2 18.7 103 ELKHART PARK G.S. 9400 3.6 6.9 52 21.5 19.7 109 GROS VENTRE SUMMIT 8775 10.0 4.8 208 23.7 19.6 121 KENDALL R.S. 7740 .1 .0 * 25.7 19.2 134 LOOMIS PARK 8240 -M 5.3 * 30.4 23.2 131 NEW FORK LAKE 8340 .2 2.9 7 16.0 17.8 90 SNIDER BASIN 8250 .2 4.0 5 22.0 18.7 118 SPRING CREEK DIVIDE 9000 24.6 22.3 110 37.9 33.0 115 TRIPLE PEAK 8500 15.1 17.8 85 44.5 37.8 118 ----- ----- Basin wide percent of average 108 116 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 19.3 16.5 117 HEWINTA 9500 .0 .0 100* 17.3 18.3 95 HICKERSON PARK 9150 .0 .3 0* 12.9 14.5 89 HOLE-IN-ROCK 9150 .1 .3 33* 13.5 14.5 93 INDIAN CREEK 9425 26.2 20.9 125 37.2 31.5 118 KELLEY R.S. 8180 3.0 4.7 64 35.6 23.2 153 STEEL CREEK PARK 10100 11.7 14.2 82 20.2 18.8 107 ----- ----- Basin wide percent of average 101* 114 UPPER BEAR RIVER BUG LAKE 7950 12.2 6.0 203 34.7 24.3 143 HAYDEN FORK 9400 .4 .3 133* 30.4 25.4 120 KELLEY R.S. 8180 3.0 4.7 64 35.6 23.2 153 LILY LAKE 9050 .2 3.2 6 24.0 20.3 118 MONTE CRISTO 8960 19.5 15.5 126 39.8 32.8 121 SALT RIVER SUMMIT 7600 .0 .0 100* 27.7 20.8 133 TRIAL LAKE 9960 20.2 16.2 125 39.9 30.8 130 ----- ----- Basin wide percent of average 121 131 ----------------------------------------------------------------------------- -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.