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 4 , 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* 32.9 28.2 118 COTTONWOOD CREEK 7600 6.6 .0 * 38.7 31.4 124 GRANITE CREEK 6770 1.5 1.4 108* 30.5 30.2 102 GRASSY LAKE 7265 21.0 9.5 222 52.9 46.7 114 GROS VENTRE SUMMIT 8775 5.3 .0 * 21.5 20.4 106 LEWIS LAKE DIVIDE 7860 25.4 15.6 163 48.9 47.4 104 PHILLIPS BENCH 8200 19.2 14.0 139 39.3 37.4 106 SALT RIVER SUMMIT 7600 .3 .0 * 24.4 21.7 113 SNAKE RIVER STATION 6920 .2 .0 * 33.3 32.8 102 SPRING CREEK DIVIDE 9000 23.5 15.0 157 37.4 34.0 111 THUMB DIVIDE 7980 1.2 .0 * 29.9 26.4 114 TOGWOTEE PASS 9580 -M 21.5 * 37.4 35.7 106 TWO OCEAN PLATEAU 9360 34.8 21.2 165 39.4 38.8 102 WILLOW CREEK 8450 15.7 15.1 104 51.8 40.3 129 ----- ----- Basin wide percent of average 154* 111 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 22.5 17.4 131 29.5 25.4 117 BLACK BEAR 7950 49.3 24.7 200 63.3 51.0 125 CANYON 7940 .3 1.2 25* 24.4 19.2 128 FISHER CREEK 9100 36.9 29.5 126 46.0 47.4 98 MADISON PLATEAU 7750 -M 6.0 * 41.3 33.8 123 NORTHEAST ENTRANCE 7350 .0 .3 0* 19.2 16.9 115 PARKER PEAK 9400 17.4 17.2 102 -M 21.9 * SYLVAN LAKE 8420 17.9 12.5 145 37.5 26.7 141 THUMB DIVIDE 7980 1.2 .0 * 29.9 26.4 114 TWO OCEAN PLATEAU 9360 34.8 21.2 165 39.4 38.8 102 WHISKEY CREEK 6800 3.8 1.0 380* 32.5 28.0 117 WHITE MILL 8700 24.4 17.7 139 31.9 37.0 87 WOLVERINE 7650 .0 .0 100* 16.4 18.4 89 ----- ----- Basin wide percent of average 146 112 WIND RIVER BURROUGHS CREEK 8750 8.5 1.7 532 25.7 22.7 113 COLD SPRINGS 9630 6.5 .3 2134* 26.0 16.4 159 DEER PARK 9700 18.0 -M * 34.7 -M * HOBBS PARK 10100 20.4 8.1 251 30.7 21.2 145 LITTLE WARM 9620 6.3 .6 1051* 26.4 19.5 136 SOUTH PASS 9040 11.5 8.7 132 31.4 24.4 129 ST. LAWRENCE ALT 8620 .0 .2 0* 22.7 15.0 151 TOGWOTEE PASS 9580 -M 21.5 * 37.4 35.7 106 TOWNSEND CREEK 8700 1.2 1.5 74 27.2 18.9 144 ----- ----- Basin wide percent of average 259* 131 BIGHORN BASIN BALD MTN. 9375 20.4 16.7 123 27.2 25.7 106 BEAR TRAP MEADOW 7900 .0 .0 100* 19.7 14.2 139 BLACKWATER 9780 30.9 16.5 187 32.5 24.4 134 BONE SPRINGS DIV 9350 14.5 7.0 206 27.2 22.5 121 EVENING STAR 9200 29.7 23.4 128 42.9 30.4 142 GRAVE SPRINGS 8550 .0 1.7 0 20.2 16.5 123 KIRWIN 9550 11.0 4.3 254 23.4 16.5 142 MARQUETTE 8760 11.0 3.4 324 22.7 17.7 129 MIDDLE POWDER 7760 .5 2.0 21 23.0 18.5 125 OWL CREEK 8975 .0 .2 0* 17.5 11.0 161 POWDER RIVER PASS 9480 .0 1.2 82* 23.9 18.5 129 SHELL CREEK 9580 10.9 9.7 112 22.4 20.2 111 SYLVAN LAKE 8420 17.9 12.5 145 37.5 26.7 141 SYLVAN ROAD 8120 .0 .9 0* 24.4 22.2 110 TIMBER CREEK 7950 .3 .3 100* 19.7 14.1 140 YOUNTS PEAK 8350 12.2 7.6 161 24.4 22.7 108 ----- ----- Basin wide percent of average 150 127 SHOSHONE RIVER BLACKWATER 9780 30.9 16.5 187 32.5 24.4 134 EVENING STAR 9200 29.7 23.4 128 42.9 30.4 142 KIRWIN 9550 11.0 4.3 254 23.4 16.5 142 MARQUETTE 8760 11.0 3.4 324 22.7 17.7 129 SYLVAN LAKE 8420 17.9 12.5 145 37.5 26.7 141 SYLVAN ROAD 8120 .0 .9 0* 24.4 22.2 110 YOUNTS PEAK 8350 12.2 7.6 161 24.4 22.7 108 ----- ----- Basin wide percent of average 165 130 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .0 100* 19.7 14.2 139 BIG GOOSE 7990 -M -M * 20.2 -M * BONE SPRINGS DIV 9350 14.5 7.0 206 27.2 22.5 121 BURGESS JUNCTION 7880 .3 1.9 11 19.2 18.0 107 CLOUD PEAK RESERVOIR 9860 13.4 7.3 183 26.9 21.7 124 DOME LAKE 8880 -M 3.3 * 18.7 20.5 91 GRAVE SPRINGS 8550 .0 1.7 0 20.2 16.5 123 HANSEN SAWMILL 8760 .0 .7 0* 18.5 13.5 139 MIDDLE POWDER 7760 .5 2.0 21 23.0 18.5 125 POWDER RIVER PASS 9480 .0 1.2 82* 23.9 18.5 129 SUCKER CREEK 8880 3.2 3.3 97 23.7 20.9 114 TIE CREEK 6870 .0 -M * 19.9 17.4 116 ----- ----- Basin wide percent of average 131 120 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 22.5 18.7 121 NORTH RAPID CREEK 6130 .0 -M * 19.7 -M * WARREN PEAK 6520 .0 .2 0* -M 13.7 * ----- ----- Basin wide percent of average 0* 121* UPPER N. PLATTE RIVER COLUMBINE 9400 .0 2.3 0* 30.9 31.2 100 DIVIDE PEAK 8800 .0 2.4 0 33.3 31.0 108 ELK RIVER 8700 .0 .3 0* 30.9 24.7 126 JOE WRIGHT 10120 14.0 15.0 94 36.3 35.3 103 NORTH FRENCH CREEK 10100 30.9 18.7 166 40.8 32.5 126 OLD BATTLE 10000 30.7 20.9 147 50.3 39.9 127 SOUTH BRUSH CREEK 8400 6.8 .9 850* 27.9 23.7 118 TOWER 10500 43.7 40.8 107 52.3 49.8 106 WEBBER SPRINGS 9200 1.0 8.6 12 36.5 34.0 108 WILLOW CREEK PASS 9540 .0 1.9 0 18.7 18.7 100 ----- ----- Basin wide percent of average 115 112 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.9 11.0 135 34.8 27.4 128 CASPER MTN. 7900 .3 3.0 7 24.7 23.2 107 DEADMAN HILL 10220 9.7 9.0 109 26.2 24.9 105 DEER PARK 9700 18.0 -M * 34.7 -M * LAPRELE CREEK 8320 .0 .9 0* 23.7 18.4 129 RENO HILL 8400 .0 2.5 0 27.9 24.7 114 ROACH 9700 3.3 6.3 52 27.9 30.5 92 SAND LAKE 10080 44.8 22.4 201 43.0 28.7 150 SOUTH PASS 9040 11.5 8.7 132 31.4 24.4 129 WINDY PEAK 7840 .0 .0 100* 21.2 16.0 133 ----- ----- Basin wide percent of average 133 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 24.0 21.0 115 DIVIDE PEAK 8800 .0 2.4 0 33.3 31.0 108 OLD BATTLE 10000 30.7 20.9 147 50.3 39.9 127 SANDSTONE RS 8150 .0 .0 100* 27.5 26.2 105 WHISKEY PARK 8950 22.4 9.5 236 40.3 38.5 105 ----- ----- Basin wide percent of average 162 112 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 20.7 20.9 100 BLIND BULL SUM 8650 25.7 14.9 174 30.0 29.7 102 EAST RIM DIVIDE 7930 3.3 5.5 60 19.7 19.4 102 ELKHART PARK G.S. 9400 4.3 3.5 121 22.4 20.4 110 GROS VENTRE SUMMIT 8775 5.3 .0 * 21.5 20.4 106 KENDALL R.S. 7740 .2 .0 * 21.7 19.9 109 LOOMIS PARK 8240 -M .0 * 26.7 24.0 111 NEW FORK LAKE 8340 .0 .0 100* 18.4 18.5 100 SNIDER BASIN 8250 .0 .0 100* 23.7 19.4 123 SPRING CREEK DIVIDE 9000 23.5 15.0 157 37.4 34.0 111 TRIPLE PEAK 8500 11.7 11.6 101 40.3 39.2 103 ----- ----- Basin wide percent of average 136* 107 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 19.4 17.2 113 HEWINTA 9500 .0 .0 100* 21.5 19.4 112 HICKERSON PARK 9150 .2 .0 * 16.4 15.5 106 HOLE-IN-ROCK 9150 .0 .2 0* 16.9 15.5 110 INDIAN CREEK 9425 25.9 13.7 190 35.9 32.5 111 KELLEY R.S. 8180 .2 .0 * 26.2 24.0 109 STEEL CREEK PARK 10100 16.0 10.4 155 25.5 20.2 127 ----- ----- Basin wide percent of average 174* 113 UPPER BEAR RIVER BUG LAKE 7950 .6 1.9 32* 30.4 25.2 122 HAYDEN FORK 9400 .3 .0 * 30.4 26.5 115 KELLEY R.S. 8180 .2 .0 * 26.2 24.0 109 LILY LAKE 9050 .0 .9 0* 26.9 21.4 126 MONTE CRISTO 8960 20.5 8.6 239 39.5 34.0 117 SALT RIVER SUMMIT 7600 .3 .0 * 24.4 21.7 113 TRIAL LAKE 9960 15.0 10.4 145 33.3 32.0 104 ----- ----- Basin wide percent of average 167* 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.