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 WEDNESDAY: JUNE 22 , 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* 38.8 28.6 136 COTTONWOOD CREEK 7670 11.1 .0 * 53.6 37.4 143 GRAND TARGHEE 9260 65.0 -M * 61.0 -M * GRANITE CREEK 6770 .0 .0 100* 37.2 26.3 141 GRASSY LAKE 7265 -M .0 * 63.2 47.4 133 GROS VENTRE SUMMIT 8750 .0 .0 100* 24.8 19.2 129 GUNSIGHT PASS 9820 17.4 -M * 30.5 -M * LEWIS LAKE DIVIDE 7850 21.6 .0 * 55.5 47.4 117 PHILLIPS BENCH 8200 20.1 .0 * 50.8 38.4 132 SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125 SNAKE RIVER STATION 6920 -M .0 * 40.6 30.1 135 SPRING CREEK DIVIDE 9000 25.6 .0 * 46.7 34.4 136 THUMB DIVIDE 7980 .2 .0 * 33.4 26.3 127 TOGWOTEE PASS 9580 33.0 9.4 351 49.2 34.4 143 TWO OCEAN PLATEAU 9240 44.7 12.6 355 48.8 38.4 127 WILLOW CREEK 8380 21.6 .0 * 63.2 44.6 142 ----- ----- Basin wide percent of average 809* 133 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 26.7 6.8 393 39.2 29.0 135 BLACK BEAR 8170 42.5 8.0 531 69.4 52.8 131 CANYON 7870 .0 .0 100* 29.5 22.2 133 FISHER CREEK 9100 44.0 14.4 306 59.4 49.5 120 MADISON PLATEAU 7750 13.3 .1 13300* 50.0 36.2 138 NORTHEAST ENTRANCE 7350 .0 .0 100* 25.5 19.5 131 PARKER PEAK 9400 31.7 6.0 528 44.1 25.4 174 SYLVAN LAKE 8420 14.2 1.6 888* 45.5 31.4 145 THUMB DIVIDE 7980 .2 .0 * 33.4 26.3 127 TWO OCEAN PLATEAU 9240 44.7 12.6 355 48.8 38.4 127 WHISKEY CREEK 6800 .0 .0 100* 39.1 29.3 133 WHITE MILL 8700 24.1 6.0 402 43.8 37.6 116 WOLVERINE 7650 .0 .0 100* 23.2 19.9 117 ----- ----- Basin wide percent of average 435* 132 WIND RIVER BURROUGHS CREEK 8750 4.5 .1 4500* 30.2 24.3 124 CASTLE CREEK 8400 .0 -M * 15.5 -M * COLD SPRINGS 9630 .0 .0 100* 20.8 18.9 110 DEER PARK 9700 12.1 1.0 1210* 35.4 33.0 107 HOBBS PARK 10100 10.3 2.5 412 28.7 22.9 125 LITTLE WARM 9370 .0 .0 100* 24.3 21.7 112 SOUTH PASS 9040 .0 .6 0* 26.9 27.6 97 ST. LAWRENCE ALT 8620 .0 .0 100* 20.9 17.0 123 TOGWOTEE PASS 9580 33.0 9.4 351 49.2 34.4 143 TOWNSEND CREEK 8700 .0 .0 100* 22.7 20.5 111 ----- ----- Basin wide percent of average 440* 118 BIGHORN BASIN BALD MTN. 9380 30.9 4.2 736 37.6 27.5 137 BEAR TRAP MEADOW 8200 .0 .0 100* 21.1 16.3 129 BLACKWATER 9780 33.7 12.4 272 44.0 31.5 140 BONE SPRINGS DIV 9350 19.5 .7 2786* 32.9 24.8 133 EVENING STAR 9200 30.2 11.5 263 54.7 37.0 148 GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.0 124 KIRWIN 9550 2.3 .2 1150* 25.4 19.7 129 MARQUETTE 8760 .0 -M * 21.8 20.5 106 MIDDLE POWDER 7760 .0 .0 100* 23.6 21.1 112 OWL CREEK 8975 .0 .0 100* 15.5 13.0 119 POWDER RIVER PASS 9480 7.3 .0 * 32.8 21.9 150 SHELL CREEK 9580 17.8 1.4 1271* 32.0 23.1 139 SYLVAN LAKE 8420 14.2 1.6 888* 45.5 31.4 145 SYLVAN ROAD 7120 .0 .0 100* 33.8 25.2 134 TIMBER CREEK 7950 .0 .0 100* 17.5 16.2 108 YOUNTS PEAK 8350 3.2 .1 3200* 27.8 24.0 116 ----- ----- Basin wide percent of average 496* 132 SHOSHONE RIVER BLACKWATER 9780 33.7 12.4 272 44.0 31.5 140 EVENING STAR 9200 30.2 11.5 263 54.7 37.0 148 KIRWIN 9550 2.3 .2 1150* 25.4 19.7 129 MARQUETTE 8760 .0 -M * 21.8 20.5 106 SYLVAN LAKE 8420 14.2 1.6 888* 45.5 31.4 145 SYLVAN ROAD 7120 .0 .0 100* 33.8 25.2 134 YOUNTS PEAK 8350 3.2 .1 3200* 27.8 24.0 116 ----- ----- Basin wide percent of average 324* 134 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100* 21.1 16.3 129 BIG GOOSE 7990 .0 .0 100* 26.4 17.7 149 BONE SPRINGS DIV 9350 19.5 .7 2786* 32.9 24.8 133 BURGESS JUNCTION 7880 .0 .0 100* 27.8 20.6 135 CLOUD PEAK RESERVOIR 9860 9.5 .9 1056* 31.9 24.2 132 DOME LAKE 8880 .0 .0 100* 29.1 22.7 128 GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.0 124 HANSEN SAWMILL 8360 .0 .0 100* 22.1 16.5 134 LITTLE GOOSE 8870 .0 -M * 29.9 -M * MIDDLE POWDER 7760 .0 .0 100* 23.6 21.1 112 POWDER RIVER PASS 9480 7.3 .0 * 32.8 21.9 150 SOLDIER PARK 8720 .0 -M * 22.4 -M * SUCKER CREEK 8880 6.1 .0 * 33.3 23.9 139 TIE CREEK 6870 .0 .0 100* 27.3 19.6 139 ----- ----- Basin wide percent of average 2650* 134 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 30.2 20.3 149 COLE CANYON 5910 .0 .0 100* 26.8 15.6 172 NORTH RAPID CREEK 6130 .0 .0 100* 26.8 16.9 159 ----- ----- Basin wide percent of average * 159 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 21.7 -M * 58.5 -M * CINNABAR PARK 9574 16.1 .0 * 51.0 28.2 181 COLUMBINE 9160 .0 .0 100* 49.3 33.3 148 DIVIDE PEAK 8880 .0 .0 100* 41.7 28.7 145 ELK RIVER 8700 .0 .0 100* 38.2 27.3 140 JOE WRIGHT 10120 29.4 3.8 774 56.0 36.7 153 NORTH FRENCH CREEK 10130 38.7 7.5 516 -M 36.1 * OLD BATTLE 10000 38.0 7.0 543 68.4 45.8 149 SAGE CREEK BASIN 7850 .0 .0 100* 26.6 16.7 159 SOUTH BRUSH CREEK 8440 .0 .0 100* 33.6 25.2 133 TOWER 10500 53.7 18.1 297 76.1 51.9 147 WEBBER SPRINGS 9250 .8 .3 267* 52.2 36.0 145 WILLOW CREEK PASS 9540 -M .0 * 30.9 20.6 150 ----- ----- Basin wide percent of average 481* 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 12.7 1.9 668* 47.8 32.7 146 CASPER MTN. 7900 .0 .5 0* 25.9 25.8 100 DEADMAN HILL 10220 6.6 1.7 388* 35.7 26.1 137 DEER PARK 9700 12.1 1.0 1210* 35.4 33.0 107 LAPRELE CREEK 8375 .0 .0 100* 24.0 21.7 111 RENO HILL 8400 .0 .0 100* 29.4 26.3 112 ROACH 9700 .0 .5 0* 36.9 28.0 132 SAND LAKE 10050 -M 7.7 * 54.2 36.2 150 SOUTH PASS 9040 .0 .6 0* 26.9 27.6 97 WINDY PEAK 7900 .0 .0 100* 21.4 18.7 114 ----- ----- Basin wide percent of average 506* 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 26.4 22.0 120 DIVIDE PEAK 8880 .0 .0 100* 41.7 28.7 145 OLD BATTLE 10000 38.0 7.0 543 68.4 45.8 149 SANDSTONE RS 8150 .5 .0 * 37.9 26.0 146 WHISKEY PARK 8950 -M 1.1 * 60.2 39.4 153 ----- ----- Basin wide percent of average 550* 145 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* 25.1 20.0 126 BLIND BULL SUM 8650 31.5 4.3 733 34.6 29.5 117 EAST RIM DIVIDE 7930 .0 .0 100* 21.5 17.3 124 ELKHART PARK G.S. 9400 .0 .0 100* 21.9 20.6 106 GROS VENTRE SUMMIT 8750 .0 .0 100* 24.8 19.2 129 GUNSIGHT PASS 9820 17.4 -M * 30.5 -M * KENDALL R.S. 7740 .0 .0 100* 24.2 19.8 122 LOOMIS PARK 8240 .1 .0 * 32.0 23.7 135 NEW FORK LAKE 8340 .0 .0 100* 18.3 17.3 106 POCKET CREEK 9360 -M -M * 23.7 -M * SNIDER BASIN 8060 .0 .0 100* 27.4 21.4 128 SPRING CREEK DIVIDE 9000 25.6 .0 * 46.7 34.4 136 TRIPLE PEAK 8500 11.2 .0 * 49.4 33.4 148 ----- ----- Basin wide percent of average 1591* 127 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 24.1 18.2 132 HEWINTA 9519 .0 .0 100* 29.0 21.5 135 HICKERSON PARK 9145 .0 .0 100* 19.8 13.7 145 HOLE-IN-ROCK 9150 .1 .0 * 20.8 13.5 154 INDIAN CREEK 9425 22.3 .7 3186* 39.8 33.8 118 KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129 STEEL CREEK PARK 10200 15.7 2.2 714 33.6 24.6 137 ----- ----- Basin wide percent of average 1314* 133 UPPER BEAR RIVER BUG LAKE 7950 1.1 .0 * 43.1 26.3 164 HAYDEN FORK 9212 .1 .0 * 43.9 29.9 147 KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129 LILY LAKE 9156 .0 .0 100* 35.0 25.5 137 MONTE CRISTO 8960 29.2 1.0 2920* 55.6 35.4 157 SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125 TRIAL LAKE 9992 28.4 3.1 916 48.8 35.0 139 ----- ----- Basin wide percent of average 1434* 143 ----------------------------------------------------------------------------- -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.