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 MONDAY: JUNE 20 , 2011 ----------------------------------------------------------------------------- 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* 39.1 28.5 137 COTTONWOOD CREEK 7670 14.0 .0 * 53.7 37.3 144 GRAND TARGHEE 9260 65.9 -M * 60.9 -M * GRANITE CREEK 6770 .0 .0 100* 36.9 26.2 141 GRASSY LAKE 7265 -M .0 * 63.2 47.2 134 GROS VENTRE SUMMIT 8750 .4 .0 * 25.0 19.1 131 GUNSIGHT PASS 9820 19.1 -M * 30.5 -M * LEWIS LAKE DIVIDE 7850 24.6 1.8 1367* 55.2 47.3 117 PHILLIPS BENCH 8200 22.0 1.4 1571* 50.7 38.3 132 SALT RIVER SUMMIT 7760 .0 .0 100* 31.6 25.1 126 SNAKE RIVER STATION 6920 -M .0 * 40.6 30.0 135 SPRING CREEK DIVIDE 9000 27.8 .8 3475* 46.7 34.3 136 THUMB DIVIDE 7980 .2 .0 * 33.4 26.2 127 TOGWOTEE PASS 9580 34.7 10.8 321 49.2 34.3 143 TWO OCEAN PLATEAU 9240 47.1 14.0 336 48.7 38.3 127 WILLOW CREEK 8380 24.1 .0 * 63.2 44.5 142 ----- ----- Basin wide percent of average 677* 134 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 27.8 8.1 343 39.1 28.9 135 BLACK BEAR 8170 45.2 9.7 466 69.4 52.6 132 CANYON 7870 .0 .1 0* 29.3 22.0 133 FISHER CREEK 9100 46.0 16.5 279 59.4 49.3 120 MADISON PLATEAU 7750 15.8 .2 7900* 49.9 36.1 138 NORTHEAST ENTRANCE 7350 .0 .0 100* 25.4 19.3 132 PARKER PEAK 9400 32.5 7.3 445 44.0 25.2 175 SYLVAN LAKE 8420 16.4 2.3 713* 45.5 31.3 145 THUMB DIVIDE 7980 .2 .0 * 33.4 26.2 127 TWO OCEAN PLATEAU 9240 47.1 14.0 336 48.7 38.3 127 WHISKEY CREEK 6800 .0 .0 100* 38.9 29.2 133 WHITE MILL 8700 26.0 7.2 361 43.7 37.4 117 WOLVERINE 7650 .0 .0 100* 23.1 19.8 117 ----- ----- Basin wide percent of average 393* 132 WIND RIVER BURROUGHS CREEK 8750 6.9 .1 6900* 30.2 24.1 125 CASTLE CREEK 8400 .0 -M * 15.5 -M * COLD SPRINGS 9630 .0 .0 100* 20.4 18.8 109 DEER PARK 9700 13.4 2.3 583 35.3 32.8 108 HOBBS PARK 10100 12.3 3.1 397 28.5 22.7 126 LITTLE WARM 9370 .0 .0 100* 24.1 21.5 112 SOUTH PASS 9040 1.2 1.1 109* 26.6 27.5 97 ST. LAWRENCE ALT 8620 .0 .0 100* 21.0 16.9 124 TOGWOTEE PASS 9580 34.7 10.8 321 49.2 34.3 143 TOWNSEND CREEK 8700 .0 .0 100* 22.7 20.4 111 ----- ----- Basin wide percent of average 394* 118 BIGHORN BASIN BALD MTN. 9380 32.4 5.3 611 37.3 27.4 136 BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128 BLACKWATER 9780 35.9 13.9 258 43.8 31.3 140 BONE SPRINGS DIV 9350 21.7 1.2 1808* 32.9 24.6 134 EVENING STAR 9200 31.3 12.9 243 54.7 36.8 149 GRAVE SPRINGS 8550 .0 .0 100* 22.4 17.9 125 KIRWIN 9550 5.0 .4 1250* 25.4 19.6 130 MARQUETTE 8760 .9 -M * 21.2 20.3 104 MIDDLE POWDER 7760 .0 .0 100* 23.2 21.0 110 OWL CREEK 8975 .0 .0 100* 15.4 12.9 119 POWDER RIVER PASS 9480 9.0 .0 * 32.6 21.7 150 SHELL CREEK 9580 19.5 2.1 929 31.9 22.9 139 SYLVAN LAKE 8420 16.4 2.3 713* 45.5 31.3 145 SYLVAN ROAD 7120 .0 .0 100* 33.7 25.0 135 TIMBER CREEK 7950 .0 .0 100* 17.5 16.1 109 YOUNTS PEAK 8350 5.4 .2 2700* 27.9 23.8 117 ----- ----- Basin wide percent of average 461* 132 SHOSHONE RIVER BLACKWATER 9780 35.9 13.9 258 43.8 31.3 140 EVENING STAR 9200 31.3 12.9 243 54.7 36.8 149 KIRWIN 9550 5.0 .4 1250* 25.4 19.6 130 MARQUETTE 8760 .9 -M * 21.2 20.3 104 SYLVAN LAKE 8420 16.4 2.3 713* 45.5 31.3 145 SYLVAN ROAD 7120 .0 .0 100* 33.7 25.0 135 YOUNTS PEAK 8350 5.4 .2 2700* 27.9 23.8 117 ----- ----- Basin wide percent of average 316* 134 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128 BIG GOOSE 7990 .0 .0 100* 26.3 17.6 149 BONE SPRINGS DIV 9350 21.7 1.2 1808* 32.9 24.6 134 BURGESS JUNCTION 7880 .0 .0 100* 27.7 20.4 136 CLOUD PEAK RESERVOIR 9860 11.7 1.3 900* 31.9 24.0 133 DOME LAKE 8880 .0 .1 0* 28.9 22.5 128 GRAVE SPRINGS 8550 .0 .0 100* 22.4 17.9 125 HANSEN SAWMILL 8360 .0 .0 100* 22.1 16.3 136 LITTLE GOOSE 8870 2.0 -M * 29.8 -M * MIDDLE POWDER 7760 .0 .0 100* 23.2 21.0 110 POWDER RIVER PASS 9480 9.0 .0 * 32.6 21.7 150 SOLDIER PARK 8720 .0 -M * 22.4 -M * SUCKER CREEK 8880 8.7 .1 8700* 33.2 23.7 140 TIE CREEK 6870 .0 .0 100* 27.3 19.4 141 ----- ----- Basin wide percent of average 1893* 134 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 30.0 20.1 149 COLE CANYON 5910 .0 .0 100* 26.7 15.4 173 NORTH RAPID CREEK 6130 .0 .0 100* 26.2 16.7 157 ----- ----- Basin wide percent of average * 159 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 23.6 -M * 58.0 -M * CINNABAR PARK 9574 16.9 .0 * 50.1 28.1 178 COLUMBINE 9160 .1 .0 * 49.3 33.3 148 DIVIDE PEAK 8880 .1 .0 * 41.6 28.6 145 ELK RIVER 8700 .1 .0 * 38.1 27.2 140 JOE WRIGHT 10120 30.8 4.7 655 55.2 36.6 151 NORTH FRENCH CREEK 10130 40.3 8.9 453 -M 36.0 * OLD BATTLE 10000 -M 8.8 * 68.0 45.7 149 SAGE CREEK BASIN 7850 .0 .0 100* 26.3 16.6 158 SOUTH BRUSH CREEK 8440 .0 .0 100* 33.3 25.0 133 TOWER 10500 55.7 20.5 272 75.9 51.7 147 WEBBER SPRINGS 9250 3.4 .5 680* 51.6 35.9 144 WILLOW CREEK PASS 9540 -M .1 * 30.2 20.4 148 ----- ----- Basin wide percent of average 426* 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.0 2.4 625* 47.6 32.6 146 CASPER MTN. 7900 .2 .6 33* 24.7 25.7 96 DEADMAN HILL 10220 8.5 2.2 386 35.2 26.0 135 DEER PARK 9700 13.4 2.3 583 35.3 32.8 108 LAPRELE CREEK 8375 .0 .0 100* 23.6 21.6 109 RENO HILL 8400 .0 .2 0* 28.6 26.2 109 ROACH 9700 .2 .7 29* 36.2 27.9 130 SAND LAKE 10050 -M 9.2 * 53.6 36.0 149 SOUTH PASS 9040 1.2 1.1 109* 26.6 27.5 97 WINDY PEAK 7900 .0 .0 100* 21.1 18.6 113 ----- ----- Basin wide percent of average 405* 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 26.4 21.9 121 DIVIDE PEAK 8880 .1 .0 * 41.6 28.6 145 OLD BATTLE 10000 -M 8.8 * 68.0 45.7 149 SANDSTONE RS 8150 .3 .0 * 37.8 25.9 146 WHISKEY PARK 8950 -M 1.6 * 60.0 39.3 153 ----- ----- Basin wide percent of average * 145 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* 25.2 19.9 127 BLIND BULL SUM 8650 33.1 5.7 581 34.6 29.4 118 EAST RIM DIVIDE 7930 .1 .0 * 21.5 17.2 125 ELKHART PARK G.S. 9400 .0 .0 100* 21.9 20.5 107 GROS VENTRE SUMMIT 8750 .4 .0 * 25.0 19.1 131 GUNSIGHT PASS 9820 19.1 -M * 30.5 -M * KENDALL R.S. 7740 .0 .0 100* 24.2 19.7 123 LOOMIS PARK 8240 .1 .0 * 32.2 23.6 136 NEW FORK LAKE 8340 .1 .0 * 18.0 17.2 105 POCKET CREEK 9360 .7 -M * 23.8 -M * SNIDER BASIN 8060 .0 .0 100* 27.4 21.3 129 SPRING CREEK DIVIDE 9000 27.8 .8 3475* 46.7 34.3 136 TRIPLE PEAK 8500 13.9 .0 * 49.4 33.3 148 ----- ----- Basin wide percent of average 1162* 128 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 24.0 18.1 133 HEWINTA 9519 .0 .0 100* 29.1 21.4 136 HICKERSON PARK 9145 .0 .0 100* 19.8 13.6 146 HOLE-IN-ROCK 9150 .2 .0 * 20.8 13.4 155 INDIAN CREEK 9425 24.7 2.1 1176* 39.8 33.7 118 KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129 STEEL CREEK PARK 10200 17.4 2.8 621 33.7 24.5 138 ----- ----- Basin wide percent of average 863* 133 UPPER BEAR RIVER BUG LAKE 7950 5.6 .0 * 43.2 26.2 165 HAYDEN FORK 9212 .1 .0 * 43.9 29.8 147 KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129 LILY LAKE 9156 .0 .0 100* 35.0 25.4 138 MONTE CRISTO 8960 33.0 1.7 1941* 55.5 35.4 157 SALT RIVER SUMMIT 7760 .0 .0 100* 31.6 25.1 126 TRIAL LAKE 9992 31.4 4.0 785 48.8 34.9 140 ----- ----- Basin wide percent of average 1230* 144 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values 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 1971-2000. 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.