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: JUNE 9 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .0 * 37.2 27.8 134 COTTONWOOD CREEK 7670 21.5 .6 3583* 51.5 36.5 141 GRAND TARGHEE 9260 72.1 -M * -M -M * GRANITE CREEK 6770 4.2 .0 * 35.1 25.5 138 GRASSY LAKE 7265 -M 6.7 * 60.5 46.1 131 GROS VENTRE SUMMIT 8750 8.0 .4 2000* 23.8 18.3 130 GUNSIGHT PASS 9820 21.8 -M * 28.5 -M * LEWIS LAKE DIVIDE 7850 36.7 11.4 322 53.0 46.3 114 PHILLIPS BENCH 8200 29.8 8.7 343 48.9 37.4 131 SALT RIVER SUMMIT 7760 .0 .0 100* 30.2 24.6 123 SNAKE RIVER STATION 6920 -M .0 * 38.3 29.1 132 SPRING CREEK DIVIDE 9000 36.3 9.3 390 45.0 33.7 134 THUMB DIVIDE 7980 6.9 .0 * 32.3 25.4 127 TOGWOTEE PASS 9580 38.4 17.7 217 47.1 33.5 141 TWO OCEAN PLATEAU 9240 51.5 21.0 245 46.9 37.2 126 WILLOW CREEK 8380 32.8 8.1 405 60.5 43.5 139 ----- ----- Basin wide percent of average 345* 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 30.2 15.4 196 37.9 27.8 136 BLACK BEAR 8170 53.0 19.3 275 67.1 51.3 131 CANYON 7870 7.7 .3 2567* 28.2 21.2 133 FISHER CREEK 9100 52.0 25.3 206 57.5 47.8 120 MADISON PLATEAU 7750 26.0 3.8 684 48.3 35.1 138 NORTHEAST ENTRANCE 7350 .0 .0 100* 24.4 18.3 133 PARKER PEAK 9400 38.0 13.6 279 43.1 24.1 179 SYLVAN LAKE 8420 23.3 7.2 324 43.9 30.0 146 THUMB DIVIDE 7980 6.9 .0 * 32.3 25.4 127 TWO OCEAN PLATEAU 9240 51.5 21.0 245 46.9 37.2 126 WHISKEY CREEK 6800 6.7 .0 * 37.5 28.1 133 WHITE MILL 8700 31.1 13.9 224 41.8 36.2 115 WOLVERINE 7650 .0 .0 100* 22.4 19.0 118 ----- ----- Basin wide percent of average 272 132 WIND RIVER BURROUGHS CREEK 8750 14.1 1.3 1085* 28.9 23.3 124 CASTLE CREEK 8400 .0 -M * 14.7 -M * COLD SPRINGS 9630 3.0 .5 600* 20.2 17.9 113 DEER PARK 9700 20.6 6.1 338 34.4 31.8 108 HOBBS PARK 10100 21.1 6.9 306 27.5 21.8 126 LITTLE WARM 9370 8.2 .5 1640* 22.8 20.7 110 SOUTH PASS 9040 13.4 3.5 383 26.3 26.7 99 ST. LAWRENCE ALT 8620 .0 .2 0* 20.1 16.0 126 TOGWOTEE PASS 9580 38.4 17.7 217 47.1 33.5 141 TOWNSEND CREEK 8700 .0 1.0 0 22.2 19.5 114 ----- ----- Basin wide percent of average 315 118 BIGHORN BASIN BALD MTN. 9380 36.0 12.1 298 34.6 26.2 132 BEAR TRAP MEADOW 8200 .0 .1 0* 19.9 15.1 132 BLACKWATER 9780 41.3 20.1 205 42.3 30.0 141 BONE SPRINGS DIV 9350 27.5 4.8 573 30.4 23.4 130 EVENING STAR 9200 38.2 21.0 182 53.6 35.5 151 GRAVE SPRINGS 8550 2.0 1.1 182* 21.1 16.9 125 KIRWIN 9550 12.9 3.2 403 24.4 18.4 133 MARQUETTE 8760 9.2 -M * 20.2 19.1 106 MIDDLE POWDER 7760 1.3 .7 186* 22.4 19.9 113 OWL CREEK 8975 .0 .2 0* 15.1 11.9 127 POWDER RIVER PASS 9480 15.3 .8 1913* 30.7 20.6 149 SHELL CREEK 9580 23.7 6.5 365 30.1 21.6 139 SYLVAN LAKE 8420 23.3 7.2 324 43.9 30.0 146 SYLVAN ROAD 7120 .0 .0 100* 32.8 24.0 137 TIMBER CREEK 7950 .0 .2 0* 16.4 15.2 108 YOUNTS PEAK 8350 14.1 3.0 470 26.1 22.9 114 ----- ----- Basin wide percent of average 291 132 SHOSHONE RIVER BLACKWATER 9780 41.3 20.1 205 42.3 30.0 141 EVENING STAR 9200 38.2 21.0 182 53.6 35.5 151 KIRWIN 9550 12.9 3.2 403 24.4 18.4 133 MARQUETTE 8760 9.2 -M * 20.2 19.1 106 SYLVAN LAKE 8420 23.3 7.2 324 43.9 30.0 146 SYLVAN ROAD 7120 .0 .0 100* 32.8 24.0 137 YOUNTS PEAK 8350 14.1 3.0 470 26.1 22.9 114 ----- ----- Basin wide percent of average 238 135 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .1 0* 19.9 15.1 132 BIG GOOSE 7990 4.8 .0 * 24.7 17.0 145 BONE SPRINGS DIV 9350 27.5 4.8 573 30.4 23.4 130 BURGESS JUNCTION 7880 8.4 .7 1200* 26.1 19.4 135 CLOUD PEAK RESERVOIR 9860 20.6 4.1 502 30.6 22.8 134 DOME LAKE 8880 12.8 1.6 800 27.5 21.5 128 GRAVE SPRINGS 8550 2.0 1.1 182* 21.1 16.9 125 HANSEN SAWMILL 8360 .0 .1 0* 20.6 15.1 136 LITTLE GOOSE 8870 10.5 -M * 28.3 -M * MIDDLE POWDER 7760 1.3 .7 186* 22.4 19.9 113 POWDER RIVER PASS 9480 15.3 .8 1913* 30.7 20.6 149 SOLDIER PARK 8720 .0 -M * 21.1 -M * SUCKER CREEK 8880 17.1 1.4 1221 31.9 22.5 142 TIE CREEK 6870 .0 .1 0* 25.8 18.2 142 ----- ----- Basin wide percent of average 708* 134 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 28.8 18.9 152 COLE CANYON 5910 .0 .0 100* 25.7 14.0 184 NORTH RAPID CREEK 6130 .0 .0 100* 24.8 15.2 163 ----- ----- Basin wide percent of average * 165 UPPER N. PLATTE RIVER CINNABAR PARK 9574 22.8 .1 22800* 46.8 27.4 171 COLUMBINE 9160 10.0 .3 3333* 48.8 32.7 149 DIVIDE PEAK 8880 5.8 1.3 446* 41.0 28.1 146 ELK RIVER 8700 .8 .2 400* 37.8 26.5 143 JOE WRIGHT 10120 42.1 11.5 366 53.6 35.7 150 NORTH FRENCH CREEK 10130 53.8 17.5 307 -M 35.1 * OLD BATTLE 10000 49.8 19.0 262 67.3 45.0 150 SAGE CREEK BASIN 7850 .0 .8 0* 25.9 16.3 159 SOUTH BRUSH CREEK 8440 .1 .7 14* 32.9 24.3 135 TOWER 10500 73.9 34.1 217 75.4 50.8 148 WEBBER SPRINGS 9250 16.1 2.8 575 51.0 35.3 144 WILLOW CREEK PASS 9540 11.5 1.1 1045* 28.8 19.5 148 ----- ----- Basin wide percent of average 321* 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 28.9 6.7 431 47.2 31.8 148 CASPER MTN. 7900 .0 2.2 0 23.1 24.8 93 DEADMAN HILL 10220 24.5 6.8 360 35.0 25.3 138 DEER PARK 9700 20.6 6.1 338 34.4 31.8 108 LAPRELE CREEK 8375 .0 .1 0* 22.3 20.8 107 RENO HILL 8400 .1 1.8 6 27.6 25.5 108 ROACH 9700 9.6 3.1 310 35.8 27.1 132 SAND LAKE 10050 46.0 18.7 246 52.9 35.1 151 SOUTH PASS 9040 13.4 3.5 383 26.3 26.7 99 WINDY PEAK 7900 .0 .0 100* 20.5 17.8 115 ----- ----- Basin wide percent of average 292 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 25.9 21.4 121 DIVIDE PEAK 8880 5.8 1.3 446* 41.0 28.1 146 OLD BATTLE 10000 49.8 19.0 262 67.3 45.0 150 SANDSTONE RS 8150 .2 .0 * 37.3 25.3 147 WHISKEY PARK 8950 -M 7.0 * 59.3 38.5 154 ----- ----- Basin wide percent of average 275* 146 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.2 .0 * 23.9 19.2 124 BLIND BULL SUM 8650 40.2 13.1 307 33.0 28.7 115 EAST RIM DIVIDE 7930 .1 .0 * 20.5 16.6 123 ELKHART PARK G.S. 9400 5.1 .0 * 20.4 19.7 104 GROS VENTRE SUMMIT 8750 8.0 .4 2000* 23.8 18.3 130 GUNSIGHT PASS 9820 21.8 -M * 28.5 -M * KENDALL R.S. 7740 .1 .0 * 23.4 19.1 123 LOOMIS PARK 8240 7.0 .0 * 31.0 23.0 135 NEW FORK LAKE 8340 .1 .0 * 17.5 16.5 106 POCKET CREEK 9360 8.0 -M * 22.3 -M * SNIDER BASIN 8060 .3 .0 * 26.6 20.8 128 SPRING CREEK DIVIDE 9000 36.3 9.3 390 45.0 33.7 134 TRIPLE PEAK 8500 24.6 .0 * 47.7 32.6 146 ----- ----- Basin wide percent of average 557* 126 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 22.9 17.5 131 HEWINTA 9519 .0 .0 100* 28.5 20.8 137 HICKERSON PARK 9145 .0 .0 100* 18.8 13.1 144 HOLE-IN-ROCK 9150 .2 .0 * 20.4 12.8 159 INDIAN CREEK 9425 32.4 9.6 338 38.6 33.1 117 KELLEY R.S. 8180 9.9 .0 * 33.9 26.8 126 STEEL CREEK PARK 10200 25.2 7.7 327 33.0 23.8 139 ----- ----- Basin wide percent of average 391* 133 UPPER BEAR RIVER BUG LAKE 7950 -M .8 * -M 25.7 * HAYDEN FORK 9212 3.9 .3 1300* 42.8 29.1 147 KELLEY R.S. 8180 9.9 .0 * 33.9 26.8 126 LILY LAKE 9156 10.5 .4 2625* 34.2 24.7 138 MONTE CRISTO 8960 44.6 7.2 619 54.3 34.7 156 SALT RIVER SUMMIT 7760 .0 .0 100* 30.2 24.6 123 TRIAL LAKE 9992 44.0 9.8 449 48.0 34.1 141 ----- ----- Basin wide percent of average 638* 140 ----------------------------------------------------------------------------- -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.