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 31 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.0 .3 333* 42.0 27.8 151 COTTONWOOD CREEK 7600 8.1 .8 1012* 42.6 31.0 137 GRANITE CREEK 6770 3.7 2.0 185 37.3 29.7 126 GRASSY LAKE 7265 19.1 12.9 148 65.7 46.2 142 GROS VENTRE SUMMIT 8775 5.1 .6 850* 24.6 20.0 123 LEWIS LAKE DIVIDE 7860 27.7 20.4 136 67.0 47.0 143 PHILLIPS BENCH 8200 25.1 18.1 139 53.6 37.0 145 SALT RIVER SUMMIT 7600 .0 .0 100* 28.8 21.3 135 SNAKE RIVER STATION 6920 .0 .7 0* 22.1 32.4 68 SPRING CREEK DIVIDE 9000 20.2 19.4 104 38.8 33.7 115 THUMB DIVIDE 7980 2.6 .7 371* 39.3 26.0 151 TOGWOTEE PASS 9580 25.6 23.7 108 42.1 35.2 120 TWO OCEAN PLATEAU 9360 40.1 22.7 177 -M 38.3 * WILLOW CREEK 8450 21.1 19.7 107 57.3 39.9 144 ----- ----- Basin wide percent of average 140 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 32.1 19.7 163 37.0 24.9 149 BLACK BEAR 7950 -M 28.1 * -M 50.5 * CANYON 7940 -M 1.7 * 30.6 18.8 163 FISHER CREEK 9100 51.3 32.0 160 58.0 46.8 124 MADISON PLATEAU 7750 16.0 8.2 195 47.7 33.2 144 NORTHEAST ENTRANCE 7350 .2 .3 67* 24.4 16.4 149 PARKER PEAK 9400 25.8 18.8 137 30.2 21.4 141 SYLVAN LAKE 8420 13.9 14.5 96 39.2 26.2 150 THUMB DIVIDE 7980 2.6 .7 371* 39.3 26.0 151 TWO OCEAN PLATEAU 9360 40.1 22.7 177 -M 38.3 * WHISKEY CREEK 6800 .7 1.7 41* 37.1 27.5 135 WHITE MILL 8700 30.1 19.7 153 38.2 36.5 105 WOLVERINE 7650 .3 .2 150* 20.7 18.0 115 ----- ----- Basin wide percent of average 154 136 WIND RIVER BURROUGHS CREEK 8750 4.5 2.3 196 30.1 22.4 134 CHRISTINA LAKE 9980 12.3 10.3 119 29.3 23.4 125 COLD SPRINGS 9630 .2 .4 50* 18.0 16.0 112 HOBBS PARK 10100 13.9 9.7 143 21.8 20.8 105 LITTLE WARM 9620 .3 1.0 30* 26.9 19.2 140 SOUTH PASS 9040 -M 10.4 * 31.3 23.9 131 ST. LAWRENCE ALT 8620 .0 .2 0* 18.1 14.7 123 TOGWOTEE PASS 9580 25.6 23.7 108 42.1 35.2 120 TOWNSEND CREEK 8700 .0 2.1 0 20.2 18.5 109 ----- ----- Basin wide percent of average 114 123 BIGHORN BASIN BALD MTN. 9375 17.5 18.8 93 24.1 25.2 96 BEAR TRAP MEADOW 7900 .2 .1 200* 14.3 13.8 104 BLACKWATER 9780 31.6 19.2 165 35.7 23.9 149 BONE SPRINGS DIV 9350 10.9 8.6 127 22.7 22.1 103 EVENING STAR 9200 32.3 25.8 125 48.4 29.8 162 GRAVE SPRINGS 8550 .0 -M * 15.5 16.1 96 KIRWIN 9550 .4 5.4 7 21.9 16.1 136 LOST CREEK 8080 7.4 6.3 117 21.7 18.7 116 MARQUETTE 8760 1.0 4.3 23 18.4 17.2 107 MIDDLE POWDER 7760 .1 3.2 3 20.6 18.1 114 OWL CREEK 8975 .1 .2 50* 11.4 10.6 108 POWDER RIVER PASS 9480 5.7 1.6 356 20.2 18.1 112 SHELL CREEK 9580 12.5 11.5 109 20.3 19.7 103 SYLVAN LAKE 8420 13.9 14.5 96 39.2 26.2 150 SYLVAN ROAD 8120 .2 1.2 17* 31.4 21.7 145 TIMBER CREEK 7950 .2 .3 67* 13.5 13.7 99 YOUNTS PEAK 8350 10.4 9.5 109 32.0 22.2 144 ----- ----- Basin wide percent of average 111 123 SHOSHONE RIVER BLACKWATER 9780 31.6 19.2 165 35.7 23.9 149 EVENING STAR 9200 32.3 25.8 125 48.4 29.8 162 KIRWIN 9550 .4 5.4 7 21.9 16.1 136 MARQUETTE 8760 1.0 4.3 23 18.4 17.2 107 SYLVAN LAKE 8420 13.9 14.5 96 39.2 26.2 150 SYLVAN ROAD 8120 .2 1.2 17* 31.4 21.7 145 YOUNTS PEAK 8350 10.4 9.5 109 32.0 22.2 144 ----- ----- Basin wide percent of average 112 144 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .1 200* 14.3 13.8 104 BONE SPRINGS DIV 9350 10.9 8.6 127 22.7 22.1 103 BURGESS JUNCTION 7880 3.6 2.8 129 19.5 17.6 111 CLOUD PEAK RESERVOIR 9860 13.2 8.8 150 22.8 21.2 108 DOME LAKE 8880 2.3 4.3 53 21.1 20.1 105 GRAVE SPRINGS 8550 .0 -M * 15.5 16.1 96 HANSEN SAWMILL 8760 .0 1.0 0 14.4 12.9 112 LOST CREEK 8080 7.4 6.3 117 21.7 18.7 116 MIDDLE POWDER 7760 .1 3.2 3 20.6 18.1 114 POWDER RIVER PASS 9480 5.7 1.6 356 20.2 18.1 112 SUCKER CREEK 8880 8.6 4.4 195 23.6 20.4 116 TIE CREEK 6870 .2 -M * 19.7 16.9 117 ----- ----- Basin wide percent of average 127 109 BELLE FOURCHE BLIND PARK 6890 .0 .3 0* 22.3 18.1 123 NORTH RAPID CREEK 6130 .0 -M * 20.9 -M * WARREN PEAK 6520 .2 .4 50* 18.3 13.2 139 ----- ----- Basin wide percent of average 29* 130 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 3.4 0 41.2 30.8 134 DIVIDE PEAK 8800 2.0 3.5 57 32.5 30.7 106 ELK RIVER 8700 .0 .7 0* 33.4 24.4 137 JOE WRIGHT 10120 21.9 17.5 125 42.1 34.8 121 NORTH FRENCH CREEK 10100 27.9 20.6 135 39.7 32.2 123 OLD BATTLE 10000 37.7 24.8 152 49.4 39.5 125 SOUTH BRUSH CREEK 8400 .0 1.3 0* 25.0 23.2 108 TOWER 10500 63.6 44.8 142 64.5 49.2 131 WEBBER SPRINGS 9200 13.6 10.9 125 43.8 33.6 130 WILLOW CREEK PASS 9540 9.1 2.7 337 23.4 18.2 129 ----- ----- Basin wide percent of average 135 125 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 20.2 13.5 150 36.3 27.0 134 CASPER MTN. 7900 4.2 4.0 105 28.9 22.8 127 CHRISTINA LAKE 9980 12.3 10.3 119 29.3 23.4 125 DEADMAN HILL 10220 14.6 10.7 136 27.3 24.5 111 LAPRELE CREEK 8320 .0 1.1 0 20.4 18.0 113 RENO HILL 8400 5.7 3.2 178 28.8 24.2 119 ROACH 9700 10.0 8.0 125 30.0 30.1 100 SAND LAKE 10080 -M 25.2 * 39.6 28.3 140 SOUTH PASS 9040 -M 10.4 * 31.3 23.9 131 WINDY PEAK 7840 .2 .2 100* 17.3 15.6 111 ----- ----- Basin wide percent of average 132 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * -M 20.8 * DIVIDE PEAK 8800 2.0 3.5 57 32.5 30.7 106 OLD BATTLE 10000 37.7 24.8 152 49.4 39.5 125 SANDSTONE RS 8150 .0 .1 0* 28.2 25.9 109 WHISKEY PARK 8950 33.6 12.8 262 43.6 38.2 114 ----- ----- Basin wide percent of average 178 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .6 0* 20.7 20.5 101 BLIND BULL SUM 8650 38.1 16.8 227 39.1 29.4 133 EAST RIM DIVIDE 7930 .0 7.3 0 20.4 19.1 107 ELKHART PARK G.S. 9400 .0 4.7 0 22.3 20.1 111 GROS VENTRE SUMMIT 8775 5.1 .6 850* 24.6 20.0 123 KENDALL R.S. 7740 .0 .0 100* 26.3 19.6 134 LOOMIS PARK 8240 -M .7 * 31.4 23.7 132 NEW FORK LAKE 8340 .0 .4 0* 17.0 18.2 93 SNIDER BASIN 8250 .0 .5 0* 22.4 19.1 117 SPRING CREEK DIVIDE 9000 20.2 19.4 104 38.8 33.7 115 TRIPLE PEAK 8500 10.8 15.1 72 46.0 38.7 119 ----- ----- Basin wide percent of average 113* 118 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 20.0 16.8 119 HEWINTA 9500 .0 .0 100* 18.4 18.9 97 HICKERSON PARK 9150 .0 .0 100* 13.6 15.1 90 HOLE-IN-ROCK 9150 .1 .1 100* 14.2 15.1 94 INDIAN CREEK 9425 23.0 17.8 129 38.3 32.2 119 KELLEY R.S. 8180 .3 .6 50* 36.6 23.7 154 STEEL CREEK PARK 10100 10.5 12.3 85 21.5 19.7 109 ----- ----- Basin wide percent of average 110* 115 UPPER BEAR RIVER BUG LAKE 7950 5.9 2.8 211 35.8 24.8 144 HAYDEN FORK 9400 .4 .0 * 31.5 26.1 121 KELLEY R.S. 8180 .3 .6 50* 36.6 23.7 154 LILY LAKE 9050 .1 1.3 8* 25.0 21.0 119 MONTE CRISTO 8960 14.5 10.5 138 41.4 33.6 123 SALT RIVER SUMMIT 7600 .0 .0 100* 28.8 21.3 135 TRIAL LAKE 9960 17.1 12.5 137 40.8 31.6 129 ----- ----- Basin wide percent of average 137* 132 ----------------------------------------------------------------------------- -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.