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 MONDAY: MAY 26 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 5.2 1.7 306* 40.7 27.4 149 COTTONWOOD CREEK 7600 12.2 4.9 249 41.7 30.5 137 GRANITE CREEK 6770 8.8 3.7 238 36.9 29.2 126 GRASSY LAKE 7265 23.5 17.4 135 63.5 45.4 140 GROS VENTRE SUMMIT 8775 9.3 3.6 258 24.3 19.7 123 LEWIS LAKE DIVIDE 7860 33.0 23.3 142 65.5 46.2 142 PHILLIPS BENCH 8200 28.8 20.3 142 52.5 36.4 144 SALT RIVER SUMMIT 7600 .0 .0 100* 28.5 21.0 136 SNAKE RIVER STATION 6920 .1 4.1 2 42.4 31.9 133 SPRING CREEK DIVIDE 9000 24.0 21.5 112 38.5 33.2 116 THUMB DIVIDE 7980 7.9 4.0 198 38.7 25.6 151 TOGWOTEE PASS 9580 27.9 24.4 114 41.3 34.6 119 TWO OCEAN PLATEAU 9360 39.2 23.8 165 -M 37.7 * WILLOW CREEK 8450 24.7 22.2 111 56.2 39.3 143 ----- ----- Basin wide percent of average 140 136 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 33.4 21.3 157 36.7 24.3 151 BLACK BEAR 7950 -M 30.9 * -M 49.8 * CANYON 7940 5.4 3.2 169 30.4 18.4 165 FISHER CREEK 9100 48.4 33.7 144 57.7 46.1 125 MADISON PLATEAU 7750 21.0 11.5 183 47.4 32.6 145 NORTHEAST ENTRANCE 7350 .2 1.0 20 24.3 16.0 152 PARKER PEAK 9400 27.5 20.0 138 29.4 20.9 141 SYLVAN LAKE 8420 18.6 16.4 113 38.8 25.5 152 THUMB DIVIDE 7980 7.9 4.0 198 38.7 25.6 151 TWO OCEAN PLATEAU 9360 39.2 23.8 165 -M 37.7 * WHISKEY CREEK 6800 6.0 4.1 146 36.2 27.1 134 WHITE MILL 8700 32.7 21.3 154 37.9 35.8 106 WOLVERINE 7650 .3 1.1 27* 20.5 17.5 117 ----- ----- Basin wide percent of average 149 137 WIND RIVER BURROUGHS CREEK 8750 9.2 3.7 249 29.9 21.9 137 CHRISTINA LAKE 9980 13.8 12.4 111 28.3 22.8 124 COLD SPRINGS 9630 .4 1.2 33 17.6 15.5 114 HOBBS PARK 10100 14.2 12.0 118 20.1 20.2 100 LITTLE WARM 9620 1.3 2.4 54 26.5 18.7 142 SOUTH PASS 9040 18.1 12.3 147 30.2 23.3 130 ST. LAWRENCE ALT 8620 .1 .9 11 16.7 14.4 116 TOGWOTEE PASS 9580 27.9 24.4 114 41.3 34.6 119 TOWNSEND CREEK 8700 .0 3.3 0 18.8 18.0 104 ----- ----- Basin wide percent of average 117 121 BIGHORN BASIN BALD MTN. 9375 19.5 20.6 95 23.9 24.4 98 BEAR TRAP MEADOW 7900 .1 .5 20* 13.8 13.3 104 BLACKWATER 9780 31.7 20.9 152 35.2 23.3 151 BONE SPRINGS DIV 9350 14.0 11.1 126 22.3 21.4 104 EVENING STAR 9200 34.3 27.2 126 48.1 29.1 165 GRAVE SPRINGS 8550 .0 -M * 15.1 15.5 97 KIRWIN 9550 4.0 6.9 58 21.6 15.6 138 LOST CREEK 8080 10.9 8.6 127 21.2 18.1 117 MARQUETTE 8760 3.9 5.3 74 18.3 16.6 110 MIDDLE POWDER 7760 3.8 6.6 58 19.7 17.5 113 OWL CREEK 8975 .2 .4 50* 10.8 10.2 106 POWDER RIVER PASS 9480 8.0 3.0 267 19.5 17.5 111 SHELL CREEK 9580 13.9 13.2 105 20.1 19.0 106 SYLVAN LAKE 8420 18.6 16.4 113 38.8 25.5 152 SYLVAN ROAD 8120 .2 2.1 10 31.5 21.2 149 TIMBER CREEK 7950 .6 1.0 60 13.0 13.1 99 YOUNTS PEAK 8350 14.3 11.5 124 31.3 21.7 144 ----- ----- Basin wide percent of average 115 125 SHOSHONE RIVER BLACKWATER 9780 31.7 20.9 152 35.2 23.3 151 EVENING STAR 9200 34.3 27.2 126 48.1 29.1 165 KIRWIN 9550 4.0 6.9 58 21.6 15.6 138 MARQUETTE 8760 3.9 5.3 74 18.3 16.6 110 SYLVAN LAKE 8420 18.6 16.4 113 38.8 25.5 152 SYLVAN ROAD 8120 .2 2.1 10 31.5 21.2 149 YOUNTS PEAK 8350 14.3 11.5 124 31.3 21.7 144 ----- ----- Basin wide percent of average 118 147 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .5 20* 13.8 13.3 104 BONE SPRINGS DIV 9350 14.0 11.1 126 22.3 21.4 104 BURGESS JUNCTION 7880 6.7 5.4 124 19.0 17.1 111 CLOUD PEAK RESERVOIR 9860 14.2 11.1 128 22.1 20.5 108 DOME LAKE 8880 4.9 6.2 79 20.7 19.5 106 GRAVE SPRINGS 8550 .0 -M * 15.1 15.5 97 HANSEN SAWMILL 8760 .0 1.9 0 14.0 12.5 112 LOST CREEK 8080 10.9 8.6 127 21.2 18.1 117 MIDDLE POWDER 7760 3.8 6.6 58 19.7 17.5 113 POWDER RIVER PASS 9480 8.0 3.0 267 19.5 17.5 111 SUCKER CREEK 8880 9.8 6.3 156 22.6 19.7 115 TIE CREEK 6870 .2 -M * 18.8 16.4 115 ----- ----- Basin wide percent of average 119 109 BELLE FOURCHE BLIND PARK 6890 .0 1.6 0 21.7 17.3 125 NORTH RAPID CREEK 6130 .0 -M * 20.2 -M * WARREN PEAK 6520 .2 1.7 12 17.2 12.7 135 ----- ----- Basin wide percent of average 6 130 UPPER N. PLATTE RIVER COLUMBINE 9400 2.3 6.7 34 39.3 30.4 129 DIVIDE PEAK 8800 4.1 6.3 65 30.2 30.1 100 ELK RIVER 8700 .2 3.1 6 31.5 24.0 131 JOE WRIGHT 10120 21.5 19.4 111 39.2 34.0 115 NORTH FRENCH CREEK 10100 27.0 22.5 120 37.2 31.5 118 OLD BATTLE 10000 38.2 28.6 134 47.6 38.8 123 SOUTH BRUSH CREEK 8400 .0 2.7 0 22.7 22.8 100 TOWER 10500 57.9 46.7 124 61.0 48.2 127 WEBBER SPRINGS 9200 16.5 13.9 119 43.1 33.1 130 WILLOW CREEK PASS 9540 12.0 5.2 231 22.5 17.7 127 ----- ----- Basin wide percent of average 116 121 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.8 17.1 127 35.3 26.5 133 CASPER MTN. 7900 7.0 6.2 113 27.7 22.1 125 CHRISTINA LAKE 9980 13.8 12.4 111 28.3 22.8 124 DEADMAN HILL 10220 14.5 13.2 110 25.9 23.9 108 LAPRELE CREEK 8320 .2 1.8 11 18.6 17.4 107 RENO HILL 8400 7.0 4.9 143 27.4 23.9 115 ROACH 9700 12.5 10.5 119 29.0 29.3 99 SAND LAKE 10080 34.0 28.4 120 37.6 27.7 136 SOUTH PASS 9040 18.1 12.3 147 30.2 23.3 130 WINDY PEAK 7840 .2 1.2 17 15.6 15.0 104 ----- ----- Basin wide percent of average 120 119 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * -M 20.4 * DIVIDE PEAK 8800 4.1 6.3 65 30.2 30.1 100 OLD BATTLE 10000 38.2 28.6 134 47.6 38.8 123 SANDSTONE RS 8150 .0 .8 0* 26.6 25.4 105 WHISKEY PARK 8950 35.9 16.7 215 41.6 37.5 111 ----- ----- Basin wide percent of average 149 111 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 3.5 0 20.3 20.2 100 BLIND BULL SUM 8650 41.9 18.5 226 38.2 29.0 132 EAST RIM DIVIDE 7930 3.0 9.0 33 20.0 18.8 106 ELKHART PARK G.S. 9400 2.3 6.3 37 22.0 19.8 111 GROS VENTRE SUMMIT 8775 9.3 3.6 258 24.3 19.7 123 KENDALL R.S. 7740 .0 .0 100* 26.2 19.3 136 LOOMIS PARK 8240 -M 4.0 * 31.2 23.3 134 NEW FORK LAKE 8340 .1 2.2 5 16.4 17.9 92 SNIDER BASIN 8250 .0 3.0 0 22.4 18.8 119 SPRING CREEK DIVIDE 9000 24.0 21.5 112 38.5 33.2 116 TRIPLE PEAK 8500 14.6 17.0 86 45.3 38.1 119 ----- ----- Basin wide percent of average 113 118 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 19.7 16.6 119 HEWINTA 9500 .0 .0 100* 17.9 18.5 97 HICKERSON PARK 9150 .0 .2 0* 13.2 14.6 90 HOLE-IN-ROCK 9150 .2 .2 100* 14.1 14.6 97 INDIAN CREEK 9425 25.6 20.0 128 37.7 31.7 119 KELLEY R.S. 8180 2.0 3.5 57 36.1 23.3 155 STEEL CREEK PARK 10100 12.2 13.6 90 20.9 19.1 109 ----- ----- Basin wide percent of average 107* 115 UPPER BEAR RIVER BUG LAKE 7950 11.8 5.1 231 35.5 24.5 145 HAYDEN FORK 9400 .3 .2 150* 31.3 25.6 122 KELLEY R.S. 8180 2.0 3.5 57 36.1 23.3 155 LILY LAKE 9050 .5 2.7 19 24.9 20.5 121 MONTE CRISTO 8960 19.7 14.1 140 40.8 33.0 124 SALT RIVER SUMMIT 7600 .0 .0 100* 28.5 21.0 136 TRIAL LAKE 9960 20.5 15.2 135 40.7 31.0 131 ----- ----- Basin wide percent of average 134 133 ----------------------------------------------------------------------------- -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.