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: JUNE 18 , 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 28.9 119 COTTONWOOD CREEK 7600 .0 .0 100* 40.4 32.3 126 GRANITE CREEK 6770 .2 .0 * 31.9 31.2 102 GRASSY LAKE 7265 2.4 .0 * 55.8 47.9 117 GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.2 111 LEWIS LAKE DIVIDE 7860 9.2 .0 * 50.4 48.8 104 PHILLIPS BENCH 8200 7.8 .0 * 41.4 38.3 109 SALT RIVER SUMMIT 7600 .3 .0 * 25.9 22.4 116 SNAKE RIVER STATION 6920 .0 .0 100* 34.7 33.7 103 SPRING CREEK DIVIDE 9000 12.4 .0 * 39.8 34.9 114 THUMB DIVIDE 7980 .0 .0 100* 30.9 27.2 115 TOGWOTEE PASS 9580 -M 11.0 * 39.0 36.5 107 TWO OCEAN PLATEAU 9360 28.4 12.9 222 41.5 39.8 105 WILLOW CREEK 8450 .0 .0 100* 54.2 41.4 131 ----- ----- Basin wide percent of average 222* 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 14.9 8.1 183 30.7 26.5 116 BLACK BEAR 7950 35.7 11.6 307 65.5 52.8 125 CANYON 7940 .2 .3 50* 26.2 20.4 129 FISHER CREEK 9100 33.9 18.5 184 48.3 49.3 98 MADISON PLATEAU 7750 -M .5 * 42.5 35.0 122 NORTHEAST ENTRANCE 7350 .0 .0 100* 20.4 18.0 113 PARKER PEAK 9400 8.5 9.9 87 -M 23.4 * SYLVAN LAKE 8420 8.5 5.0 172 -M 28.2 * THUMB DIVIDE 7980 .0 .0 100* 30.9 27.2 115 TWO OCEAN PLATEAU 9360 28.4 12.9 222 41.5 39.8 105 WHISKEY CREEK 6800 -M .0 * -M 29.4 * WHITE MILL 8700 16.5 9.4 178 33.5 38.5 88 WOLVERINE 7650 .0 .0 100* 17.4 19.5 90 ----- ----- Basin wide percent of average 195 110 WIND RIVER BURROUGHS CREEK 8750 1.9 .0 * 27.0 23.5 115 COLD SPRINGS 9630 .0 .0 100* 26.9 17.4 155 DEER PARK 9700 9.5 -M * 37.9 -M * HOBBS PARK 10100 13.5 2.9 463 32.0 22.2 145 LITTLE WARM 9620 .0 .0 100* 28.4 20.4 139 SOUTH PASS 9040 -M 3.3 * 34.8 25.4 137 ST. LAWRENCE ALT 8620 .0 .0 100* 23.7 16.0 149 TOGWOTEE PASS 9580 -M 11.0 * 39.0 36.5 107 TOWNSEND CREEK 8700 .0 .0 100* 28.4 19.9 143 ----- ----- Basin wide percent of average 463* 133 BIGHORN BASIN BALD MTN. 9375 -M 7.8 * 29.2 26.7 109 BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.5 133 BLACKWATER 9780 27.2 7.0 395 34.5 26.4 132 BONE SPRINGS DIV 9350 2.2 2.2 100 29.4 24.0 123 EVENING STAR 9200 20.7 13.5 155 45.0 32.4 139 GRAVE SPRINGS 8550 .2 .0 * 21.4 18.0 119 KIRWIN 9550 1.7 .9 200* 24.7 17.7 140 MARQUETTE 8760 1.0 .7 143* 24.9 18.9 132 MIDDLE POWDER 7760 .0 .0 100* 22.9 19.9 116 OWL CREEK 8975 .0 .0 100* 19.7 11.9 167 POWDER RIVER PASS 9480 .0 .0 100* 25.9 19.9 131 SHELL CREEK 9580 .6 3.3 19 25.2 21.9 116 SYLVAN LAKE 8420 8.5 5.0 172 -M 28.2 * SYLVAN ROAD 8120 .0 .0 100* 25.4 23.7 108 TIMBER CREEK 7950 .0 .0 100* 20.7 15.0 138 YOUNTS PEAK 8350 1.0 1.7 59* 25.9 23.9 109 ----- ----- Basin wide percent of average 186* 126 SHOSHONE RIVER BLACKWATER 9780 27.2 7.0 395 34.5 26.4 132 EVENING STAR 9200 20.7 13.5 155 45.0 32.4 139 KIRWIN 9550 1.7 .9 200* 24.7 17.7 140 MARQUETTE 8760 1.0 .7 143* 24.9 18.9 132 SYLVAN LAKE 8420 8.5 5.0 172 -M 28.2 * SYLVAN ROAD 8120 .0 .0 100* 25.4 23.7 108 YOUNTS PEAK 8350 1.0 1.7 59* 25.9 23.9 109 ----- ----- Basin wide percent of average 211* 127 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .0 100* 20.4 15.5 133 BIG GOOSE 7990 .0 -M * 22.2 -M * BONE SPRINGS DIV 9350 2.2 2.2 100 29.4 24.0 123 BURGESS JUNCTION 7880 .0 .0 100* 21.4 19.2 113 CLOUD PEAK RESERVOIR 9860 .3 2.8 8 28.7 23.2 124 DOME LAKE 8880 -M .7 * 20.2 21.7 93 GRAVE SPRINGS 8550 .2 .0 * 21.4 18.0 119 HANSEN SAWMILL 8760 .2 .0 * 20.2 14.9 137 MIDDLE POWDER 7760 .0 .0 100* 22.9 19.9 116 POWDER RIVER PASS 9480 .0 .0 100* 25.9 19.9 131 SUCKER CREEK 8880 .0 .2 0* 26.2 22.4 118 TIE CREEK 6870 .0 -M * 22.7 18.4 123 ----- ----- Basin wide percent of average 47* 120 BELLE FOURCHE BLIND PARK 6890 .2 .0 * 27.2 20.5 133 NORTH RAPID CREEK 6130 .0 -M * 25.2 -M * WARREN PEAK 6520 .0 .0 100* -M 15.4 * ----- ----- Basin wide percent of average * 133* UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 32.3 31.7 102 DIVIDE PEAK 8800 .0 .3 0* 35.8 31.7 113 ELK RIVER 8700 .0 .0 100* 32.0 25.5 126 JOE WRIGHT 10120 5.8 6.1 94 39.7 36.3 110 NORTH FRENCH CREEK 10100 22.4 10.5 214 43.2 33.5 129 OLD BATTLE 10000 18.9 8.0 236 52.9 41.0 130 SOUTH BRUSH CREEK 8400 6.0 .0 * 29.5 24.9 119 TOWER 10500 30.9 24.2 128 53.8 50.8 107 WEBBER SPRINGS 9200 .0 1.7 0* 38.5 34.9 111 WILLOW CREEK PASS 9540 .0 .0 100* 20.2 19.5 104 ----- ----- Basin wide percent of average 154* 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 6.3 3.3 191 35.8 28.2 127 CASPER MTN. 7900 .3 .9 25* 28.2 24.4 116 DEADMAN HILL 10220 .0 3.2 0 27.7 25.9 107 DEER PARK 9700 9.5 -M * 37.9 -M * LAPRELE CREEK 8320 .0 .0 100* 26.9 19.5 138 RENO HILL 8400 .0 .6 0* 30.0 25.9 117 ROACH 9700 .0 .0 0* 30.4 31.4 97 SAND LAKE 10080 29.7 11.5 261 44.4 29.9 149 SOUTH PASS 9040 -M 3.3 * 34.8 25.4 137 WINDY PEAK 7840 .0 .0 100* 23.0 17.2 135 ----- ----- Basin wide percent of average 181* 124 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 24.9 21.5 116 DIVIDE PEAK 8800 .0 .3 0* 35.8 31.7 113 OLD BATTLE 10000 18.9 8.0 236 52.9 41.0 130 SANDSTONE RS 8150 .0 .0 100* 28.9 26.7 109 WHISKEY PARK 8950 .0 .3 0* 42.2 39.0 108 ----- ----- Basin wide percent of average 222* 116 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 22.9 21.5 107 BLIND BULL SUM 8650 11.0 7.3 150 31.7 30.4 104 EAST RIM DIVIDE 7930 .0 .0 100* 20.7 20.2 103 ELKHART PARK G.S. 9400 .0 .0 100* 24.2 21.2 114 GROS VENTRE SUMMIT 8775 .0 .0 100* 23.4 21.2 111 KENDALL R.S. 7740 .0 .0 100* 22.4 20.7 109 LOOMIS PARK 8240 .0 .0 100* 27.9 24.9 112 NEW FORK LAKE 8340 .0 .0 100* 20.2 19.2 106 SNIDER BASIN 8250 .0 .0 100* 26.2 20.2 131 SPRING CREEK DIVIDE 9000 12.4 .0 * 39.8 34.9 114 TRIPLE PEAK 8500 .0 .0 100* 41.9 40.3 105 ----- ----- Basin wide percent of average 150* 110 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 20.4 17.7 116 HEWINTA 9500 .0 .0 100* 22.5 20.2 112 HICKERSON PARK 9150 .3 .0 * 17.2 16.4 105 HOLE-IN-ROCK 9150 .0 .0 100* 17.9 16.4 109 INDIAN CREEK 9425 14.9 .0 * 37.5 33.4 113 KELLEY R.S. 8180 .0 .0 100* 27.7 24.9 111 STEEL CREEK PARK 10100 8.2 3.0 274 26.7 21.9 123 ----- ----- Basin wide percent of average 274* 113 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 * 31.9 25.9 124 HAYDEN FORK 9400 .0 .0 100* 31.0 27.4 114 KELLEY R.S. 8180 .0 .0 100* 27.7 24.9 111 LILY LAKE 9050 .0 .0 100* 27.7 22.4 125 MONTE CRISTO 8960 1.2 3.2 39 41.3 34.9 119 SALT RIVER SUMMIT 7600 .3 .0 * 25.9 22.4 116 TRIAL LAKE 9960 2.0 3.3 61 34.3 32.9 104 ----- ----- Basin wide percent of average 50* 116 ----------------------------------------------------------------------------- -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.