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: OCTOBER 31 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .6 17* 3.4 2.0 170 COTTONWOOD CREEK 7670 .2 .9 22* 4.6 3.0 153 GRAND TARGHEE 9260 2.8 -M * 5.4 -M * GRANITE CREEK 6770 .1 .5 20* 2.5 1.8 139 GRASSY LAKE 7265 .3 1.4 21* 5.2 3.3 158 GROS VENTRE SUMMIT 8750 .4 1.4 29* 2.3 1.8 128 GUNSIGHT PASS 9820 .7 -M * 2.6 -M * LEWIS LAKE DIVIDE 7850 .2 1.2 17* 4.4 3.1 142 PHILLIPS BENCH 8200 .1 1.4 7* 2.6 2.4 108 SALT RIVER SUMMIT 7760 .3 .4 75* 2.2 1.9 116 SNAKE RIVER STATION 6920 .0 .6 0* 3.8 2.3 165 SPRING CREEK DIVIDE 9000 1.3 1.5 87* 3.3 2.5 132 THUMB DIVIDE 7980 .1 .8 13* 2.9 2.1 138 TOGWOTEE PASS 9580 1.5 2.6 58* 3.3 2.8 118 TWO OCEAN PLATEAU 9240 4.2 3.0 140* 3.9 3.1 126 WILLOW CREEK 8380 .2 1.8 11* 5.3 3.7 143 ----- ----- Basin wide percent of average 50* 139 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 2.4 2.7 89 3.0 2.1 143 BLACK BEAR 8170 2.1 2.8 75* 5.4 3.4 159 CANYON 7870 .2 .6 33* 2.1 1.8 117 FISHER CREEK 9100 2.0 2.7 74* 4.5 3.3 136 MADISON PLATEAU 7750 .1 1.6 6* 3.9 2.5 156 NORTHEAST ENTRANCE 7350 .0 .3 0* 2.0 1.5 133 PARKER PEAK 9400 1.5 2.6 58 3.6 2.3 157 SYLVAN LAKE 8420 .0 1.9 0* 3.9 2.6 150 THUMB DIVIDE 7980 .1 .8 13* 2.9 2.1 138 TWO OCEAN PLATEAU 9240 4.2 3.0 140* 3.9 3.1 126 WHISKEY CREEK 6800 .1 .8 13* 3.2 2.2 145 WHITE MILL 8700 .9 2.0 45* 3.7 2.7 137 WOLVERINE 7650 .0 .5 0* 3.0 1.8 167 ----- ----- Basin wide percent of average 61* 144 WIND RIVER BURROUGHS CREEK 8750 .3 1.0 30* 1.6 1.6 100 CASTLE CREEK 8400 .0 -M * 1.3 -M * COLD SPRINGS 9630 .7 1.0 70 2.1 1.9 111 DEER PARK 9700 .9 2.3 39 2.8 2.5 112 HOBBS PARK 10100 1.9 2.3 83 2.6 2.1 124 LITTLE WARM 9370 .0 1.0 0* 1.8 1.7 106 SOUTH PASS 9040 .5 1.5 33* 2.3 2.1 110 ST. LAWRENCE ALT 8620 .0 .9 0 1.4 1.7 82 TOGWOTEE PASS 9580 1.5 2.6 58* 3.3 2.8 118 TOWNSEND CREEK 8700 .4 1.1 36 2.7 2.1 129 ----- ----- Basin wide percent of average 45 111 BIGHORN BASIN BALD MTN. 9380 3.6 2.8 129 3.8 2.4 158 BEAR TRAP MEADOW 8200 .4 .6 67 2.0 1.7 118 BLACKWATER 9780 3.3 3.1 106 3.9 2.7 144 BONE SPRINGS DIV 9350 3.6 2.6 138 4.4 2.5 176 EVENING STAR 9200 1.5 2.7 56* 4.3 2.8 154 GRAVE SPRINGS 8550 .0 1.2 0 2.2 2.1 105 KIRWIN 9550 1.9 1.9 100 3.1 1.8 172 MARQUETTE 8760 .0 -M * 3.5 2.3 152 MIDDLE POWDER 7760 .3 1.3 23* 4.2 2.6 162 OWL CREEK 8975 .8 .9 89 1.7 1.2 142 POWDER RIVER PASS 9480 2.0 1.3 154 3.2 1.9 168 SHELL CREEK 9580 4.1 2.7 152 3.9 2.0 195 SYLVAN LAKE 8420 .0 1.9 0* 3.9 2.6 150 SYLVAN ROAD 7120 .0 .5 0* 2.2 2.1 105 TIMBER CREEK 7950 .0 1.1 0 3.7 1.6 231 YOUNTS PEAK 8350 .8 1.4 57* 2.6 1.8 144 ----- ----- Basin wide percent of average 86 154 SHOSHONE RIVER BLACKWATER 9780 3.3 3.1 106 3.9 2.7 144 EVENING STAR 9200 1.5 2.7 56* 4.3 2.8 154 KIRWIN 9550 1.9 1.9 100 3.1 1.8 172 MARQUETTE 8760 .0 -M * 3.5 2.3 152 SYLVAN LAKE 8420 .0 1.9 0* 3.9 2.6 150 SYLVAN ROAD 7120 .0 .5 0* 2.2 2.1 105 YOUNTS PEAK 8350 .8 1.4 57* 2.6 1.8 144 ----- ----- Basin wide percent of average 65* 146 POWDER-TONGUE BEAR TRAP MEADOW 8200 .4 .6 67 2.0 1.7 118 BIG GOOSE 7990 1.3 .8 163* 4.6 2.1 219 BONE SPRINGS DIV 9350 3.6 2.6 138 4.4 2.5 176 BURGESS JUNCTION 7880 1.4 1.5 93 4.6 2.2 209 CLOUD PEAK RESERVOIR 9860 2.1 1.6 131* 4.1 2.6 158 DOME LAKE 8880 2.2 1.9 116 4.7 2.5 188 GRAVE SPRINGS 8550 .0 1.2 0 2.2 2.1 105 HANSEN SAWMILL 8360 .4 .9 44 2.1 1.8 117 LITTLE GOOSE 8870 1.6 -M * 5.1 -M * MIDDLE POWDER 7760 .3 1.3 23* 4.2 2.6 162 POWDER RIVER PASS 9480 2.0 1.3 154 3.2 1.9 168 SOLDIER PARK 8720 .0 -M * 2.8 -M * SUCKER CREEK 8880 2.9 1.4 207 4.5 2.4 188 TIE CREEK 6870 .0 .9 0 4.6 2.5 184 ----- ----- Basin wide percent of average 104 168 BELLE FOURCHE BLIND PARK 6890 .0 .5 0* 1.2 2.6 46 COLE CANYON 5910 .0 1.0 0 1.4 1.9 74 NORTH RAPID CREEK 6130 .0 .5 0* .8 2.5 32 ----- ----- Basin wide percent of average 0* 49 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 2.3 -M * 3.8 -M * CINNABAR PARK 9574 1.1 1.6 69* 3.4 2.5 136 COLUMBINE 9160 .3 .8 38* 2.8 2.4 117 DIVIDE PEAK 8880 .4 1.8 22* 3.1 2.7 115 ELK RIVER 8700 .2 .6 33* 2.4 2.2 109 JOE WRIGHT 10120 .5 2.5 20* 3.7 3.4 109 NORTH FRENCH CREEK 10130 2.5 3.1 81* 3.9 3.3 118 OLD BATTLE 10000 2.3 3.0 77* 3.8 3.6 106 SAGE CREEK BASIN 7850 .0 1.0 0* 2.0 1.6 125 SOUTH BRUSH CREEK 8440 .4 .7 57* 2.9 2.6 112 TOWER 10500 2.1 3.5 60* 3.7 4.0 93 WEBBER SPRINGS 9250 .4 1.9 21* 3.3 3.1 106 WILLOW CREEK PASS 9540 1.7 1.2 142* 2.2 2.0 110 ----- ----- Basin wide percent of average 55* 111 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .8 2.2 36* 3.2 2.5 128 CASPER MTN. 7900 1.2 1.7 71* 5.1 2.5 204 DEADMAN HILL 10220 2.6 2.2 118 3.2 2.5 128 DEER PARK 9700 .9 2.3 39 2.8 2.5 112 LAPRELE CREEK 8375 .1 1.0 10* 2.3 1.9 121 RENO HILL 8400 1.3 1.7 76 3.4 2.5 136 ROACH 9700 1.4 1.2 117* 3.2 2.3 139 SAND LAKE 10050 3.1 3.3 94* 4.1 3.0 137 SOUTH PASS 9040 .5 1.5 33* 2.3 2.1 110 WINDY PEAK 7900 .1 .6 17* 1.5 1.7 88 ----- ----- Basin wide percent of average 68* 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .5 0* 1.6 1.9 84 DIVIDE PEAK 8880 .4 1.8 22* 3.1 2.7 115 OLD BATTLE 10000 2.3 3.0 77* 3.8 3.6 106 SANDSTONE RS 8150 .0 .5 0* 1.6 2.3 70 WHISKEY PARK 8950 .3 1.7 18* 3.3 2.9 114 ----- ----- Basin wide percent of average 40* 100 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.0 1.2 83* 2.0 1.8 111 BLIND BULL SUM 8650 .7 1.6 44* 2.1 2.2 95 EAST RIM DIVIDE 7930 .4 .6 67* 2.2 1.4 157 ELKHART PARK G.S. 9400 .9 .9 100* 2.8 2.0 140 GROS VENTRE SUMMIT 8750 .4 1.4 29* 2.3 1.8 128 GUNSIGHT PASS 9820 .7 -M * 2.6 -M * KENDALL R.S. 7740 .2 .7 29* 2.2 1.6 138 LOOMIS PARK 8240 .1 .9 11* 2.5 1.8 139 NEW FORK LAKE 8340 .6 .6 100* 2.6 1.6 163 POCKET CREEK 9360 1.8 -M * 2.7 -M * SNIDER BASIN 8060 .2 .7 29* 1.7 1.6 106 SPRING CREEK DIVIDE 9000 1.3 1.5 87* 3.3 2.5 132 TRIPLE PEAK 8500 1.0 1.2 83* 3.1 2.2 141 ----- ----- Basin wide percent of average 60* 131 LOWER GREEN RIVER HAMS FORK 7840 .1 .4 25* 2.6 1.4 186 HEWINTA 9519 -M .9 * 2.9 2.4 121 HICKERSON PARK 9145 .0 .5 0* 3.5 1.7 206 HOLE-IN-ROCK 9150 .2 .5 40* 3.2 1.7 188 INDIAN CREEK 9425 1.8 1.5 120* 3.4 2.6 131 KELLEY R.S. 8180 .4 1.0 40* 2.9 2.1 138 STEEL CREEK PARK 10200 .0 1.6 0* 3.5 2.3 152 ----- ----- Basin wide percent of average 45* 155 UPPER BEAR RIVER BUG LAKE 7950 .4 1.3 31* 1.6 2.4 67 HAYDEN FORK 9212 .3 .9 33* 4.1 2.4 171 KELLEY R.S. 8180 .4 1.0 40* 2.9 2.1 138 LILY LAKE 9156 .0 1.0 0* 2.8 2.4 117 MONTE CRISTO 8960 .4 1.6 25* 2.4 2.8 86 SALT RIVER SUMMIT 7760 .3 .4 75* 2.2 1.9 116 TRIAL LAKE 9992 1.2 1.9 63* 2.5 2.8 89 ----- ----- Basin wide percent of average 37* 110 ----------------------------------------------------------------------------- -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.