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 29 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.2 .8 400* 41.2 27.6 149 COTTONWOOD CREEK 7600 10.3 2.5 412 41.9 30.8 136 GRANITE CREEK 6770 6.3 2.7 233 37.1 29.5 126 GRASSY LAKE 7265 21.4 14.7 146 64.6 45.9 141 GROS VENTRE SUMMIT 8775 7.1 1.8 394 24.5 19.9 123 LEWIS LAKE DIVIDE 7860 30.7 21.5 143 65.8 46.7 141 PHILLIPS BENCH 8200 27.0 19.0 142 53.0 36.8 144 SALT RIVER SUMMIT 7600 .0 .0 100* 28.6 21.2 135 SNAKE RIVER STATION 6920 .1 2.0 5 43.0 32.2 134 SPRING CREEK DIVIDE 9000 22.7 20.2 112 38.6 33.5 115 THUMB DIVIDE 7980 5.2 2.0 260 38.8 25.9 150 TOGWOTEE PASS 9580 27.1 24.0 113 41.7 35.0 119 TWO OCEAN PLATEAU 9360 40.4 23.2 174 -M 38.0 * WILLOW CREEK 8450 23.2 20.7 112 56.6 39.6 143 ----- ----- Basin wide percent of average 145 136 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 32.7 20.4 160 36.9 24.6 150 BLACK BEAR 7950 -M 29.2 * -M 50.2 * CANYON 7940 3.5 2.3 152 30.5 18.6 164 FISHER CREEK 9100 49.4 32.7 151 57.9 46.5 125 MADISON PLATEAU 7750 18.6 9.5 196 47.5 33.0 144 NORTHEAST ENTRANCE 7350 .2 .6 33* 24.5 16.2 151 PARKER PEAK 9400 27.2 19.3 141 29.7 21.2 140 SYLVAN LAKE 8420 16.9 15.2 111 38.9 25.9 150 THUMB DIVIDE 7980 5.2 2.0 260 38.8 25.9 150 TWO OCEAN PLATEAU 9360 40.4 23.2 174 -M 38.0 * WHISKEY CREEK 6800 2.8 2.7 104 36.6 27.3 134 WHITE MILL 8700 31.9 20.4 156 38.1 36.2 105 WOLVERINE 7650 .3 .5 60* 20.7 17.8 116 ----- ----- Basin wide percent of average 154 136 WIND RIVER BURROUGHS CREEK 8750 6.3 2.9 217 30.0 22.2 135 CHRISTINA LAKE 9980 13.7 11.2 122 29.1 23.2 125 COLD SPRINGS 9630 .2 .7 29* 17.8 15.8 113 HOBBS PARK 10100 15.0 10.6 142 21.3 20.6 103 LITTLE WARM 9620 .3 1.5 20 26.7 19.0 141 SOUTH PASS 9040 14.6 11.1 132 31.1 23.7 131 ST. LAWRENCE ALT 8620 .0 .5 0* 17.8 14.6 122 TOGWOTEE PASS 9580 27.1 24.0 113 41.7 35.0 119 TOWNSEND CREEK 8700 .0 2.6 0 20.0 18.3 109 ----- ----- Basin wide percent of average 119 122 BIGHORN BASIN BALD MTN. 9375 18.9 19.5 97 24.0 24.9 96 BEAR TRAP MEADOW 7900 .2 .2 100* 14.0 13.6 103 BLACKWATER 9780 32.1 19.9 161 35.4 23.7 149 BONE SPRINGS DIV 9350 12.5 9.6 130 22.5 21.8 103 EVENING STAR 9200 34.0 26.3 129 48.2 29.5 163 GRAVE SPRINGS 8550 .0 -M * 15.5 15.8 98 KIRWIN 9550 2.3 6.0 38 21.8 15.9 137 LOST CREEK 8080 9.4 7.2 131 21.7 18.4 118 MARQUETTE 8760 2.3 4.7 49 18.3 16.9 108 MIDDLE POWDER 7760 1.6 4.5 36 20.2 17.9 113 OWL CREEK 8975 .2 .3 67* 11.2 10.4 108 POWDER RIVER PASS 9480 7.0 2.2 318 19.8 17.9 111 SHELL CREEK 9580 13.5 12.2 111 20.2 19.4 104 SYLVAN LAKE 8420 16.9 15.2 111 38.9 25.9 150 SYLVAN ROAD 8120 .2 1.5 13 31.4 21.5 146 TIMBER CREEK 7950 .1 .6 17* 13.3 13.4 99 YOUNTS PEAK 8350 12.4 10.3 120 31.5 22.0 143 ----- ----- Basin wide percent of average 117 124 SHOSHONE RIVER BLACKWATER 9780 32.1 19.9 161 35.4 23.7 149 EVENING STAR 9200 34.0 26.3 129 48.2 29.5 163 KIRWIN 9550 2.3 6.0 38 21.8 15.9 137 MARQUETTE 8760 2.3 4.7 49 18.3 16.9 108 SYLVAN LAKE 8420 16.9 15.2 111 38.9 25.9 150 SYLVAN ROAD 8120 .2 1.5 13 31.4 21.5 146 YOUNTS PEAK 8350 12.4 10.3 120 31.5 22.0 143 ----- ----- Basin wide percent of average 119 145 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .2 100* 14.0 13.6 103 BONE SPRINGS DIV 9350 12.5 9.6 130 22.5 21.8 103 BURGESS JUNCTION 7880 5.1 3.9 131 19.3 17.4 111 CLOUD PEAK RESERVOIR 9860 14.2 9.7 146 22.8 20.9 109 DOME LAKE 8880 3.7 5.0 74 21.0 19.8 106 GRAVE SPRINGS 8550 .0 -M * 15.5 15.8 98 HANSEN SAWMILL 8760 .0 1.4 0 14.2 12.7 112 LOST CREEK 8080 9.4 7.2 131 21.7 18.4 118 MIDDLE POWDER 7760 1.6 4.5 36 20.2 17.9 113 POWDER RIVER PASS 9480 7.0 2.2 318 19.8 17.9 111 SUCKER CREEK 8880 9.8 5.1 192 23.2 20.1 115 TIE CREEK 6870 .2 -M * 19.5 16.7 117 ----- ----- Basin wide percent of average 130 110 BELLE FOURCHE BLIND PARK 6890 .0 .8 0* 22.2 17.8 125 NORTH RAPID CREEK 6130 .0 -M * 20.7 -M * WARREN PEAK 6520 .1 .9 11* 18.3 13.0 141 ----- ----- Basin wide percent of average 6* 131 UPPER N. PLATTE RIVER COLUMBINE 9400 .4 4.7 9 40.1 30.6 131 DIVIDE PEAK 8800 4.2 4.6 91 31.8 30.5 104 ELK RIVER 8700 .0 1.7 0* 32.2 24.3 133 JOE WRIGHT 10120 22.3 18.3 122 40.4 34.5 117 NORTH FRENCH CREEK 10100 28.3 21.3 133 38.8 31.9 122 OLD BATTLE 10000 38.9 26.3 148 48.6 39.2 124 SOUTH BRUSH CREEK 8400 .0 1.9 0 23.5 23.0 102 TOWER 10500 59.9 45.5 132 62.5 48.8 128 WEBBER SPRINGS 9200 15.6 12.1 129 43.5 33.4 130 WILLOW CREEK PASS 9540 10.5 3.7 284 23.0 18.0 128 ----- ----- Basin wide percent of average 129 122 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 22.0 14.9 148 35.9 26.8 134 CASPER MTN. 7900 6.4 4.9 131 28.7 22.5 128 CHRISTINA LAKE 9980 13.7 11.2 122 29.1 23.2 125 DEADMAN HILL 10220 15.1 11.7 129 26.8 24.3 110 LAPRELE CREEK 8320 .4 1.4 29 19.9 17.8 112 RENO HILL 8400 7.6 3.9 195 28.5 24.1 118 ROACH 9700 11.7 9.0 130 29.7 29.8 100 SAND LAKE 10080 33.9 26.5 128 38.7 28.1 138 SOUTH PASS 9040 14.6 11.1 132 31.1 23.7 131 WINDY PEAK 7840 .2 .6 33* 16.9 15.4 110 ----- ----- Basin wide percent of average 132 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .3 .0 * -M 20.7 * DIVIDE PEAK 8800 4.2 4.6 91 31.8 30.5 104 OLD BATTLE 10000 38.9 26.3 148 48.6 39.2 124 SANDSTONE RS 8150 .0 .4 0* 27.8 25.7 108 WHISKEY PARK 8950 35.9 14.3 251 42.5 37.9 112 ----- ----- Basin wide percent of average 173 113 UPPER GREEN RIVER BIG SANDY OPENING 9100 .1 1.7 6 20.7 20.4 101 BLIND BULL SUM 8650 40.1 17.5 229 38.7 29.2 133 EAST RIM DIVIDE 7930 .9 8.0 11 20.2 19.0 106 ELKHART PARK G.S. 9400 .3 5.4 6 22.1 20.0 111 GROS VENTRE SUMMIT 8775 7.1 1.8 394 24.5 19.9 123 KENDALL R.S. 7740 .0 .0 100* 26.3 19.5 135 LOOMIS PARK 8240 -M 2.0 * 31.3 23.6 133 NEW FORK LAKE 8340 .1 1.1 9* 16.9 18.1 93 SNIDER BASIN 8250 .0 1.5 0* 22.4 19.0 118 SPRING CREEK DIVIDE 9000 22.7 20.2 112 38.6 33.5 115 TRIPLE PEAK 8500 13.1 15.8 83 45.8 38.4 119 ----- ----- Basin wide percent of average 116 118 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 19.9 16.7 119 HEWINTA 9500 .0 .0 100* 17.9 18.7 96 HICKERSON PARK 9150 .0 .1 0* 13.4 14.9 90 HOLE-IN-ROCK 9150 .1 .2 50* 14.1 14.9 95 INDIAN CREEK 9425 25.0 18.7 134 37.9 32.0 118 KELLEY R.S. 8180 .8 1.8 44 36.3 23.6 154 STEEL CREEK PARK 10100 11.7 12.8 91 21.1 19.4 109 ----- ----- Basin wide percent of average 112* 115 UPPER BEAR RIVER BUG LAKE 7950 9.0 3.7 243 35.5 24.7 144 HAYDEN FORK 9400 .5 .1 500* 31.4 25.9 121 KELLEY R.S. 8180 .8 1.8 44 36.3 23.6 154 LILY LAKE 9050 .1 1.8 6 24.9 20.8 120 MONTE CRISTO 8960 17.4 11.9 146 40.9 33.4 122 SALT RIVER SUMMIT 7600 .0 .0 100* 28.6 21.2 135 TRIAL LAKE 9960 19.8 13.6 146 40.8 31.4 130 ----- ----- Basin wide percent of average 145 132 ----------------------------------------------------------------------------- -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.