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 SATURDAY: OCTOBER 18 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .1 0 1.5 1.0 150 COTTONWOOD CREEK 7670 .0 .2 0 1.4 1.5 93 GRAND TARGHEE 9260 1.1 -M * 3.2 -M * GRANITE CREEK 6770 .2 .1 200 1.6 .9 178 GRASSY LAKE 7265 .4 .4 100 2.0 1.7 118 GROS VENTRE SUMMIT 8750 1.3 .7 186 1.8 1.0 180 GUNSIGHT PASS 9820 .7 -M * 1.1 -M * LEWIS LAKE DIVIDE 7850 .2 .2 100 2.0 1.5 133 PHILLIPS BENCH 8200 .9 .4 225 1.6 1.2 133 SALT RIVER SUMMIT 7760 .0 .0 100 1.2 1.0 120 SNAKE RIVER STATION 6920 .0 .1 0 1.3 1.2 108 SPRING CREEK DIVIDE 9000 .7 .5 140 1.2 1.2 100 THUMB DIVIDE 7980 .3 .2 150 2.2 1.1 200 TOGWOTEE PASS 9580 1.5 1.3 115 2.0 1.4 143 TWO OCEAN PLATEAU 9240 1.5 1.5 100 1.6 1.6 100 WILLOW CREEK 8380 .2 .6 33 2.0 2.0 100 ----- ----- Basin wide percent of average 114 128 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.3 1.6 81 1.3 1.1 118 BLACK BEAR 8170 1.2 1.0 120 3.2 1.7 188 CANYON 7870 .5 .3 167 .7 .9 78 FISHER CREEK 9100 1.1 1.1 100 2.0 1.6 125 MADISON PLATEAU 7750 .7 .5 140 1.8 1.4 129 NORTHEAST ENTRANCE 7350 .1 .1 100 1.0 .9 111 PARKER PEAK 9400 1.5 1.6 94 1.4 1.3 108 SYLVAN LAKE 8420 .3 1.0 30 1.6 1.4 114 THUMB DIVIDE 7980 .3 .2 150 2.2 1.1 200 TWO OCEAN PLATEAU 9240 1.5 1.5 100 1.6 1.6 100 WHISKEY CREEK 6800 .4 .2 200 1.3 1.1 118 WHITE MILL 8700 1.1 .8 138 1.4 1.4 100 WOLVERINE 7650 .2 .2 100 1.1 1.1 100 ----- ----- Basin wide percent of average 101 124 WIND RIVER BURROUGHS CREEK 8750 1.7 .4 425 2.0 .9 222 COLD SPRINGS 9630 1.6 .4 400 2.2 1.0 220 DEER PARK 9700 1.3 1.0 130 2.5 1.2 208 HOBBS PARK 10100 2.1 1.2 175 2.5 1.2 208 LITTLE WARM 9370 1.3 .5 260 1.7 .9 189 SOUTH PASS 9040 1.5 .6 250 2.7 1.0 270 ST. LAWRENCE ALT 8620 1.8 .4 450 2.2 .9 244 TOGWOTEE PASS 9580 1.5 1.3 115 2.0 1.4 143 TOWNSEND CREEK 8700 1.9 .6 317 2.6 1.2 217 ----- ----- Basin wide percent of average 230 210 BIGHORN BASIN BALD MTN. 9380 1.8 1.7 106 2.5 1.4 179 BEAR TRAP MEADOW 8200 .9 .4 225 1.7 1.0 170 BLACKWATER 9780 1.5 1.9 79 1.8 1.4 129 BONE SPRINGS DIV 9350 1.5 1.5 100 1.8 1.5 120 EVENING STAR 9200 1.5 1.5 100 2.2 1.4 157 GRAVE SPRINGS 8550 1.1 .7 157 1.7 1.3 131 KIRWIN 9550 1.5 1.0 150 1.5 .9 167 MARQUETTE 8760 1.8 1.3 138 2.0 1.3 154 MIDDLE POWDER 7760 1.1 .9 122 1.7 1.5 113 OWL CREEK 8975 1.9 .5 380 1.8 .7 257 POWDER RIVER PASS 9480 .9 .7 129 1.7 1.1 155 SHELL CREEK 9580 2.1 1.8 117 2.4 1.1 218 SYLVAN LAKE 8420 .3 1.0 30 1.6 1.4 114 SYLVAN ROAD 7120 .2 .2 100 1.1 .9 122 TIMBER CREEK 7950 1.3 .6 217 2.0 .9 222 YOUNTS PEAK 8350 1.0 .6 167 1.3 1.0 130 ----- ----- Basin wide percent of average 125 153 SHOSHONE RIVER BLACKWATER 9780 1.5 1.9 79 1.8 1.4 129 EVENING STAR 9200 1.5 1.5 100 2.2 1.4 157 KIRWIN 9550 1.5 1.0 150 1.5 .9 167 MARQUETTE 8760 1.8 1.3 138 2.0 1.3 154 SYLVAN LAKE 8420 .3 1.0 30 1.6 1.4 114 SYLVAN ROAD 7120 .2 .2 100 1.1 .9 122 YOUNTS PEAK 8350 1.0 .6 167 1.3 1.0 130 ----- ----- Basin wide percent of average 104 139 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .4 225 1.7 1.0 170 BIG GOOSE 7990 .8 .4 200 1.7 1.3 131 BONE SPRINGS DIV 9350 1.5 1.5 100 1.8 1.5 120 BURGESS JUNCTION 7880 1.0 .9 111 1.8 1.3 138 CLOUD PEAK RESERVOIR 9860 1.2 .8 150 1.8 1.5 120 DOME LAKE 8880 1.0 1.0 100 1.6 1.4 114 GRAVE SPRINGS 8550 1.1 .7 157 1.7 1.3 131 HANSEN SAWMILL 8360 1.0 .4 250 1.5 1.0 150 MIDDLE POWDER 7760 1.1 .9 122 1.7 1.5 113 POWDER RIVER PASS 9480 .9 .7 129 1.7 1.1 155 SUCKER CREEK 8880 1.2 .8 150 2.2 1.4 157 TIE CREEK 6870 1.3 .5 260 2.9 1.5 193 ----- ----- Basin wide percent of average 144 140 BELLE FOURCHE BLIND PARK 6890 .1 .2 50 1.1 1.4 79 COLE CANYON 5910 .8 .4 200 2.5 1.0 250 NORTH RAPID CREEK 6130 .2 .2 100 1.6 1.4 114 ----- ----- Basin wide percent of average 138 137 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .1 0 .3 1.2 25 DIVIDE PEAK 8880 .3 .9 33 2.0 1.5 133 ELK RIVER 8700 .1 .2 50 1.0 1.2 83 JOE WRIGHT 10120 .0 1.1 0 .8 1.8 44 NORTH FRENCH CREEK 10130 .7 1.6 44 1.2 1.7 71 OLD BATTLE 10000 .3 1.4 21 1.4 1.8 78 SAGE CREEK BASIN 7850 .0 .5 0 .8 .8 100 SOUTH BRUSH CREEK 8440 .0 .2 0 .8 1.4 57 TOWER 10500 .0 1.3 0 1.7 1.9 89 WEBBER SPRINGS 9250 .1 .7 14 .9 1.6 56 WILLOW CREEK PASS 9540 .0 .5 0 .6 1.1 55 ----- ----- Basin wide percent of average 18 72 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .3 1.1 27 .6 1.2 50 CASPER MTN. 7900 .5 .8 62 1.6 1.3 123 DEADMAN HILL 10220 1.8 1.1 164 .5 1.3 38 DEER PARK 9700 1.3 1.0 130 2.5 1.2 208 LAPRELE CREEK 8375 .1 .4 25 .6 1.0 60 RENO HILL 8400 1.1 .9 122 1.3 1.3 100 ROACH 9700 .6 .4 150 .7 1.2 58 SAND LAKE 10050 1.0 1.6 62 .9 1.6 56 SOUTH PASS 9040 1.5 .6 250 2.7 1.0 270 WINDY PEAK 7900 .6 .2 300 .8 .9 89 ----- ----- Basin wide percent of average 109 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .6 1.0 60 DIVIDE PEAK 8880 .3 .9 33 2.0 1.5 133 OLD BATTLE 10000 .3 1.4 21 1.4 1.8 78 SANDSTONE RS 8150 .0 .1 0 .6 1.2 50 WHISKEY PARK 8950 .1 .7 14 1.0 1.6 62 ----- ----- Basin wide percent of average 23 79 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 .5 160 1.4 1.0 140 BLIND BULL SUM 8650 1.4 .6 233 2.0 1.1 182 EAST RIM DIVIDE 7930 .5 .1 500 1.8 .7 257 ELKHART PARK G.S. 9400 .9 .3 300 1.8 1.1 164 GROS VENTRE SUMMIT 8750 1.3 .7 186 1.8 1.0 180 GUNSIGHT PASS 9820 .7 -M * 1.1 -M * KENDALL R.S. 7740 .5 .1 500 1.4 .8 175 LOOMIS PARK 8240 .9 .3 300 2.0 .9 222 NEW FORK LAKE 8340 .5 .1 500 1.4 .8 175 SNIDER BASIN 8060 .6 .2 300 1.0 .7 143 SPRING CREEK DIVIDE 9000 .7 .5 140 1.2 1.2 100 TRIPLE PEAK 8500 1.1 .4 275 1.7 1.1 155 ----- ----- Basin wide percent of average 242 168 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 1.2 .7 171 HEWINTA 9519 .0 .5 0 1.2 1.3 92 HICKERSON PARK 9145 .0 .1 0 1.1 .9 122 HOLE-IN-ROCK 9150 .4 .1 400 1.7 1.0 170 INDIAN CREEK 9425 1.4 .5 280 1.7 1.2 142 KELLEY R.S. 8180 .5 .3 167 1.3 1.1 118 STEEL CREEK PARK 10200 .8 .9 89 1.6 1.2 133 ----- ----- Basin wide percent of average 129 132 UPPER BEAR RIVER BUG LAKE 7950 .1 .6 17 1.3 1.3 100 HAYDEN FORK 9212 .0 .4 0 1.3 1.3 100 KELLEY R.S. 8180 .5 .3 167 1.3 1.1 118 LILY LAKE 9156 .0 .5 0 1.7 1.3 131 MONTE CRISTO 8960 .0 .8 0 1.6 1.5 107 SALT RIVER SUMMIT 7760 .0 .0 100 1.2 1.0 120 TRIAL LAKE 9992 .2 1.0 20 1.3 1.4 93 ----- ----- Basin wide percent of average 22 109 ----------------------------------------------------------------------------- -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 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.