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 FRIDAY: MAY 30 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 2.0 .6 333* 41.9 27.7 151 COTTONWOOD CREEK 7600 9.4 1.6 588* 42.6 30.9 138 GRANITE CREEK 6770 5.1 2.4 212 37.2 29.6 126 GRASSY LAKE 7265 20.3 13.8 147 65.7 46.0 143 GROS VENTRE SUMMIT 8775 6.1 1.2 508* 24.6 20.0 123 LEWIS LAKE DIVIDE 7860 29.2 21.0 139 66.9 46.8 143 PHILLIPS BENCH 8200 26.1 18.5 141 53.5 36.9 145 SALT RIVER SUMMIT 7600 .0 .0 100* 28.8 21.3 135 SNAKE RIVER STATION 6920 .1 1.4 7* 44.0 32.3 136 SPRING CREEK DIVIDE 9000 21.8 19.8 110 38.7 33.6 115 THUMB DIVIDE 7980 3.9 1.3 300* 39.3 25.9 152 TOGWOTEE PASS 9580 26.3 23.9 110 42.0 35.1 120 TWO OCEAN PLATEAU 9360 40.5 22.9 177 -M 38.2 * WILLOW CREEK 8450 22.3 20.2 110 57.4 39.8 144 ----- ----- Basin wide percent of average 143 137 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 32.6 20.0 163 36.9 24.8 149 BLACK BEAR 7950 -M 28.6 * -M 50.3 * CANYON 7940 2.7 2.0 135 30.6 18.7 164 FISHER CREEK 9100 -M 32.4 * 58.0 46.7 124 MADISON PLATEAU 7750 17.4 8.8 198 47.7 33.1 144 NORTHEAST ENTRANCE 7350 .2 .5 40* 24.4 16.3 150 PARKER PEAK 9400 26.6 19.1 139 29.9 21.3 140 SYLVAN LAKE 8420 15.8 14.9 106 39.2 26.0 151 THUMB DIVIDE 7980 3.9 1.3 300* 39.3 25.9 152 TWO OCEAN PLATEAU 9360 40.5 22.9 177 -M 38.2 * WHISKEY CREEK 6800 1.6 2.2 73 36.8 27.4 134 WHITE MILL 8700 30.8 20.0 154 38.2 36.3 105 WOLVERINE 7650 .3 .4 75* 20.5 17.9 115 ----- ----- Basin wide percent of average 154 136 WIND RIVER BURROUGHS CREEK 8750 5.7 2.6 219 30.1 22.3 135 CHRISTINA LAKE 9980 13.1 10.7 122 29.3 23.3 126 COLD SPRINGS 9630 .2 .6 33* 18.0 15.9 113 HOBBS PARK 10100 14.9 10.2 146 21.4 20.7 103 LITTLE WARM 9620 .3 1.3 23* 26.9 19.1 141 SOUTH PASS 9040 -M 10.8 * 31.3 23.8 132 ST. LAWRENCE ALT 8620 .0 .4 0* 17.9 14.7 122 TOGWOTEE PASS 9580 26.3 23.9 110 42.0 35.1 120 TOWNSEND CREEK 8700 .0 2.3 0 20.2 18.4 110 ----- ----- Basin wide percent of average 116 123 BIGHORN BASIN BALD MTN. 9375 18.4 19.2 96 24.0 25.0 96 BEAR TRAP MEADOW 7900 .2 .2 100* 14.3 13.7 104 BLACKWATER 9780 32.0 19.5 164 35.6 23.8 150 BONE SPRINGS DIV 9350 11.9 9.1 131 22.5 21.9 103 EVENING STAR 9200 33.0 26.1 126 48.4 29.6 164 GRAVE SPRINGS 8550 .0 -M * 15.5 16.0 97 KIRWIN 9550 1.3 5.7 23 21.8 16.0 136 LOST CREEK 8080 8.5 6.7 127 21.7 18.6 117 MARQUETTE 8760 1.7 4.5 38 18.3 17.1 107 MIDDLE POWDER 7760 .6 3.9 15 20.3 18.0 113 OWL CREEK 8975 .2 .2 100* 11.3 10.5 108 POWDER RIVER PASS 9480 6.8 1.9 358 20.1 18.0 112 SHELL CREEK 9580 13.1 11.9 110 20.3 19.5 104 SYLVAN LAKE 8420 15.8 14.9 106 39.2 26.0 151 SYLVAN ROAD 8120 .2 1.4 14 31.5 21.6 146 TIMBER CREEK 7950 .2 .5 40* 13.5 13.6 99 YOUNTS PEAK 8350 11.6 9.9 117 31.9 22.1 144 ----- ----- Basin wide percent of average 115 124 SHOSHONE RIVER BLACKWATER 9780 32.0 19.5 164 35.6 23.8 150 EVENING STAR 9200 33.0 26.1 126 48.4 29.6 164 KIRWIN 9550 1.3 5.7 23 21.8 16.0 136 MARQUETTE 8760 1.7 4.5 38 18.3 17.1 107 SYLVAN LAKE 8420 15.8 14.9 106 39.2 26.0 151 SYLVAN ROAD 8120 .2 1.4 14 31.5 21.6 146 YOUNTS PEAK 8350 11.6 9.9 117 31.9 22.1 144 ----- ----- Basin wide percent of average 117 145 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .2 100* 14.3 13.7 104 BONE SPRINGS DIV 9350 11.9 9.1 131 22.5 21.9 103 BURGESS JUNCTION 7880 4.5 3.3 136 19.3 17.5 110 CLOUD PEAK RESERVOIR 9860 14.0 9.2 152 22.8 21.0 109 DOME LAKE 8880 3.3 4.7 70 21.1 20.0 106 GRAVE SPRINGS 8550 .0 -M * 15.5 16.0 97 HANSEN SAWMILL 8760 .0 1.2 0 14.3 12.8 112 LOST CREEK 8080 8.5 6.7 127 21.7 18.6 117 MIDDLE POWDER 7760 .6 3.9 15 20.3 18.0 113 POWDER RIVER PASS 9480 6.8 1.9 358 20.1 18.0 112 SUCKER CREEK 8880 9.3 4.8 194 23.3 20.2 115 TIE CREEK 6870 .2 -M * 19.6 16.8 117 ----- ----- Basin wide percent of average 131 109 BELLE FOURCHE BLIND PARK 6890 .0 .5 0* 22.2 17.9 124 NORTH RAPID CREEK 6130 .0 -M * 20.8 -M * WARREN PEAK 6520 .1 .6 17* 18.3 13.1 140 ----- ----- Basin wide percent of average 9* 131 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 4.0 0 41.2 30.7 134 DIVIDE PEAK 8800 3.5 4.0 88 32.2 30.6 105 ELK RIVER 8700 .0 1.2 0* 32.6 24.3 134 JOE WRIGHT 10120 23.1 17.9 129 41.9 34.6 121 NORTH FRENCH CREEK 10100 28.5 21.0 136 39.6 32.0 124 OLD BATTLE 10000 39.0 25.5 153 49.3 39.3 125 SOUTH BRUSH CREEK 8400 .0 1.6 0 24.3 23.1 105 TOWER 10500 62.4 45.2 138 64.4 49.0 131 WEBBER SPRINGS 9200 14.9 11.5 130 43.7 33.5 130 WILLOW CREEK PASS 9540 10.3 3.2 322 23.3 18.1 129 ----- ----- Basin wide percent of average 134 125 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 21.4 14.2 151 36.2 26.9 135 CASPER MTN. 7900 5.7 4.4 130 28.8 22.6 127 CHRISTINA LAKE 9980 13.1 10.7 122 29.3 23.3 126 DEADMAN HILL 10220 15.2 11.2 136 27.2 24.4 111 LAPRELE CREEK 8320 .2 1.3 15 20.1 17.9 112 RENO HILL 8400 7.1 3.6 197 28.8 24.2 119 ROACH 9700 11.0 8.5 129 29.9 29.9 100 SAND LAKE 10080 -M 25.9 * 39.3 28.2 139 SOUTH PASS 9040 -M 10.8 * 31.3 23.8 132 WINDY PEAK 7840 .2 .4 50* 16.9 15.5 109 ----- ----- Basin wide percent of average 136 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .3 .0 * -M 20.7 * DIVIDE PEAK 8800 3.5 4.0 88 32.2 30.6 105 OLD BATTLE 10000 39.0 25.5 153 49.3 39.3 125 SANDSTONE RS 8150 .0 .3 0* 28.0 25.8 109 WHISKEY PARK 8950 34.0 13.6 250 43.5 38.0 114 ----- ----- Basin wide percent of average 176 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 1.2 0* 20.7 20.5 101 BLIND BULL SUM 8650 39.3 17.1 230 39.0 29.3 133 EAST RIM DIVIDE 7930 .2 7.7 3 20.3 19.1 106 ELKHART PARK G.S. 9400 .0 5.0 0 22.3 20.1 111 GROS VENTRE SUMMIT 8775 6.1 1.2 508* 24.6 20.0 123 KENDALL R.S. 7740 .0 .0 100* 26.4 19.6 135 LOOMIS PARK 8240 -M 1.3 * 31.4 23.6 133 NEW FORK LAKE 8340 .0 .7 0* 16.7 18.2 92 SNIDER BASIN 8250 .0 1.0 0* 22.4 19.1 117 SPRING CREEK DIVIDE 9000 21.8 19.8 110 38.7 33.6 115 TRIPLE PEAK 8500 12.3 15.5 79 46.1 38.6 119 ----- ----- Basin wide percent of average 115* 118 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 20.0 16.8 119 HEWINTA 9500 .0 .0 100* 18.4 18.8 98 HICKERSON PARK 9150 .0 .1 0* 13.5 15.0 90 HOLE-IN-ROCK 9150 .1 .1 100* 14.2 15.0 95 INDIAN CREEK 9425 24.2 18.3 132 38.3 32.1 119 KELLEY R.S. 8180 .4 1.2 33* 36.6 23.6 155 STEEL CREEK PARK 10100 11.3 12.5 90 21.4 19.6 109 ----- ----- Basin wide percent of average 112* 115 UPPER BEAR RIVER BUG LAKE 7950 7.5 3.2 234 35.8 24.8 144 HAYDEN FORK 9400 .4 .1 400* 31.5 26.0 121 KELLEY R.S. 8180 .4 1.2 33* 36.6 23.6 155 LILY LAKE 9050 .1 1.6 6 25.1 20.9 120 MONTE CRISTO 8960 16.1 11.2 144 41.3 33.5 123 SALT RIVER SUMMIT 7600 .0 .0 100* 28.8 21.3 135 TRIAL LAKE 9960 18.9 13.1 144 40.8 31.5 130 ----- ----- Basin wide percent of average 143 132 ----------------------------------------------------------------------------- -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.