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 SUNDAY: JUNE 20 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 100* 34.3 29.0 119 COTTONWOOD CREEK 7600 .0 .0 100* 40.4 32.3 126 GRANITE CREEK 6770 .2 .0 * 32.0 31.4 103 GRASSY LAKE 7265 .2 .0 * 55.8 48.2 116 GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.2 110 LEWIS LAKE DIVIDE 7860 5.1 .0 * 50.4 48.9 104 PHILLIPS BENCH 8200 5.1 .0 * 41.4 38.5 108 SALT RIVER SUMMIT 7600 .2 .0 * 25.9 22.5 116 SNAKE RIVER STATION 6920 -M .0 * -M 33.8 * SPRING CREEK DIVIDE 9000 9.5 .0 * 39.7 35.0 114 THUMB DIVIDE 7980 .0 .0 100* 30.9 27.2 114 TOGWOTEE PASS 9580 -M 9.4 * 39.0 36.8 107 TWO OCEAN PLATEAU 9360 26.5 10.9 246 41.7 40.0 105 WILLOW CREEK 8450 .0 .0 100* 54.2 41.5 131 ----- ----- Basin wide percent of average 246* 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.2 7.1 172 30.7 26.7 116 BLACK BEAR 7950 32.5 10.0 325 65.5 53.2 124 CANYON 7940 .0 .3 0* 26.2 20.7 128 FISHER CREEK 9100 29.9 16.7 181 48.7 49.5 99 MADISON PLATEAU 7750 -M .3 * 42.5 35.3 121 NORTHEAST ENTRANCE 7350 .0 .0 100* 20.4 18.2 113 PARKER PEAK 9400 5.5 8.9 62 -M 23.7 * SYLVAN LAKE 8420 5.5 4.3 131 -M 28.4 * THUMB DIVIDE 7980 .0 .0 100* 30.9 27.2 114 TWO OCEAN PLATEAU 9360 26.5 10.9 246 41.7 40.0 105 WHISKEY CREEK 6800 .0 .0 100* 34.4 29.7 117 WHITE MILL 8700 -M 8.2 * -M 38.8 * WOLVERINE 7650 .0 .0 100* 17.4 19.7 89 ----- ----- Basin wide percent of average 195* 113 WIND RIVER BURROUGHS CREEK 8750 .2 .0 * 27.0 23.7 115 COLD SPRINGS 9630 .0 .0 100* 26.9 17.4 155 DEER PARK 9700 6.5 -M * 37.9 -M * HOBBS PARK 10100 10.6 2.5 425 32.2 22.4 144 LITTLE WARM 9620 .2 .0 * 28.4 20.7 138 SOUTH PASS 9040 -M 2.8 * 34.8 25.5 137 ST. LAWRENCE ALT 8620 .0 .0 100* 23.7 16.2 147 TOGWOTEE PASS 9580 -M 9.4 * 39.0 36.8 107 TOWNSEND CREEK 8700 .0 .0 100* 28.4 20.0 142 ----- ----- Basin wide percent of average 425* 132 BIGHORN BASIN BALD MTN. 9375 11.1 6.8 164 29.2 26.9 109 BEAR TRAP MEADOW 7900 .2 .0 * 20.5 15.5 133 BLACKWATER 9780 24.9 6.3 400 34.5 26.5 131 BONE SPRINGS DIV 9350 .3 1.9 12* 29.7 24.2 123 EVENING STAR 9200 18.0 12.2 148 45.2 32.8 138 GRAVE SPRINGS 8550 .2 .0 * 21.4 18.2 118 KIRWIN 9550 .0 .7 0* 24.7 17.7 139 MARQUETTE 8760 .2 .6 17* 24.7 19.0 131 MIDDLE POWDER 7760 .0 .0 100* 22.9 20.2 114 OWL CREEK 8975 -M .0 * -M 12.0 * POWDER RIVER PASS 9480 .0 .0 100* 25.7 20.0 129 SHELL CREEK 9580 .0 2.8 0 25.5 22.0 116 SYLVAN LAKE 8420 5.5 4.3 131 -M 28.4 * SYLVAN ROAD 8120 -M .0 * -M 23.9 * TIMBER CREEK 7950 .0 .0 100* 20.7 15.2 136 YOUNTS PEAK 8350 .9 1.4 58* 25.9 23.9 109 ----- ----- Basin wide percent of average 165* 125 SHOSHONE RIVER BLACKWATER 9780 24.9 6.3 400 34.5 26.5 131 EVENING STAR 9200 18.0 12.2 148 45.2 32.8 138 KIRWIN 9550 .0 .7 0* 24.7 17.7 139 MARQUETTE 8760 .2 .6 17* 24.7 19.0 131 SYLVAN LAKE 8420 5.5 4.3 131 -M 28.4 * SYLVAN ROAD 8120 -M .0 * -M 23.9 * YOUNTS PEAK 8350 .9 1.4 58* 25.9 23.9 109 ----- ----- Basin wide percent of average 195* 130 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .0 * 20.5 15.5 133 BIG GOOSE 7990 .0 -M * 22.4 -M * BONE SPRINGS DIV 9350 .3 1.9 12* 29.7 24.2 123 BURGESS JUNCTION 7880 .0 .0 100* 21.4 19.4 111 CLOUD PEAK RESERVOIR 9860 .0 2.3 0 28.7 23.4 123 DOME LAKE 8880 -M .6 * 20.2 21.9 93 GRAVE SPRINGS 8550 .2 .0 * 21.4 18.2 118 HANSEN SAWMILL 8760 .2 .0 * 20.2 15.0 135 MIDDLE POWDER 7760 .0 .0 100* 22.9 20.2 114 POWDER RIVER PASS 9480 .0 .0 100* 25.7 20.0 129 SUCKER CREEK 8880 .0 .2 0* 26.5 22.5 118 TIE CREEK 6870 .0 -M * 22.7 18.5 123 ----- ----- Basin wide percent of average 5* 119 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 27.2 20.9 131 NORTH RAPID CREEK 6130 .0 -M * 25.2 -M * WARREN PEAK 6520 .0 .0 100* 27.0 15.5 175 ----- ----- Basin wide percent of average * 150 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 32.3 31.9 102 DIVIDE PEAK 8800 .0 .3 0* 35.9 31.7 114 ELK RIVER 8700 .0 .0 100* 32.4 25.7 127 JOE WRIGHT 10120 2.8 5.5 52 39.8 36.5 109 NORTH FRENCH CREEK 10100 20.0 9.0 225 43.0 33.7 128 OLD BATTLE 10000 14.1 7.3 196 53.0 41.2 129 SOUTH BRUSH CREEK 8400 6.0 .0 * 29.5 24.9 119 TOWER 10500 27.9 22.2 126 54.0 50.8 107 WEBBER SPRINGS 9200 .0 1.4 0* 39.2 35.0 112 WILLOW CREEK PASS 9540 .0 .0 100* 20.5 19.7 105 ----- ----- Basin wide percent of average 143* 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 3.7 2.8 129* 35.9 28.4 127 CASPER MTN. 7900 .3 .7 29* 28.2 24.7 115 DEADMAN HILL 10220 .0 2.8 0 27.7 26.0 107 DEER PARK 9700 6.5 -M * 37.9 -M * LAPRELE CREEK 8320 .0 .0 100* 27.0 19.7 138 RENO HILL 8400 .0 .5 0* 30.0 25.9 116 ROACH 9700 .0 .9 0* 30.4 31.5 97 SAND LAKE 10080 26.2 10.1 260 44.4 30.0 148 SOUTH PASS 9040 -M 2.8 * 34.8 25.5 137 WINDY PEAK 7840 .0 .0 100* 23.2 17.2 135 ----- ----- Basin wide percent of average 171* 123 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * 24.9 21.5 116 DIVIDE PEAK 8800 .0 .3 0* 35.9 31.7 114 OLD BATTLE 10000 14.1 7.3 196 53.0 41.2 129 SANDSTONE RS 8150 .0 .0 100* 29.2 26.7 109 WHISKEY PARK 8950 .2 .3 50* 42.3 39.2 109 ----- ----- Basin wide percent of average 185* 116 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 22.7 21.7 106 BLIND BULL SUM 8650 8.0 6.3 130 31.7 30.5 104 EAST RIM DIVIDE 7930 .0 .0 100* 21.2 20.2 105 ELKHART PARK G.S. 9400 .0 .0 100* 24.0 21.4 113 GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.2 110 KENDALL R.S. 7740 .0 .0 100* 22.4 20.7 108 LOOMIS PARK 8240 .0 .0 100* 27.7 25.2 111 NEW FORK LAKE 8340 .0 .0 100* 20.9 19.2 109 SNIDER BASIN 8250 .0 .0 100* 26.2 20.2 130 SPRING CREEK DIVIDE 9000 9.5 .0 * 39.7 35.0 114 TRIPLE PEAK 8500 .0 .0 100* 41.9 40.4 104 ----- ----- Basin wide percent of average 130* 110 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 20.4 17.9 115 HEWINTA 9500 .0 .0 100* 22.4 20.4 111 HICKERSON PARK 9150 .2 .0 * 17.2 16.5 105 HOLE-IN-ROCK 9150 .0 .0 100* 17.9 16.5 108 INDIAN CREEK 9425 12.0 .0 * 37.8 33.7 113 KELLEY R.S. 8180 .0 .0 100* 27.7 25.0 111 STEEL CREEK PARK 10100 5.3 2.5 213 26.9 22.2 122 ----- ----- Basin wide percent of average 213* 112 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 * 31.9 25.9 123 HAYDEN FORK 9400 .0 .0 100* 31.2 27.7 114 KELLEY R.S. 8180 .0 .0 100* 27.7 25.0 111 LILY LAKE 9050 .0 .0 100* 27.7 22.4 124 MONTE CRISTO 8960 -M 2.8 * 41.3 35.0 118 SALT RIVER SUMMIT 7600 .2 .0 * 25.9 22.5 116 TRIAL LAKE 9960 .6 2.8 22 34.3 33.0 104 ----- ----- Basin wide percent of average 22* 115 ----------------------------------------------------------------------------- -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.