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 29 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.0 .6 167* 5.0 1.9 263 COTTONWOOD CREEK 7600 1.8 .8 225* 5.0 2.8 179 GRANITE CREEK 6770 1.1 .5 220* 4.1 1.6 256 GRASSY LAKE 7265 1.1 1.3 85* 5.8 3.2 181 GROS VENTRE SUMMIT 8750 2.1 1.3 162* 3.9 1.7 229 LEWIS LAKE DIVIDE 7850 1.2 1.1 109* 5.6 3.0 187 PHILLIPS BENCH 8200 1.5 1.3 115* 5.0 2.3 217 SALT RIVER SUMMIT 7600 .1 .3 33* 2.6 1.8 144 SNAKE RIVER STATION 6920 .0 .5 0* 4.6 2.1 219 SPRING CREEK DIVIDE 9000 1.8 1.4 129* 3.3 2.4 138 THUMB DIVIDE 7980 .8 .8 100* 4.3 1.9 226 TOGWOTEE PASS 9580 4.5 2.4 188* 5.6 2.6 215 TWO OCEAN PLATEAU 9240 5.7 2.8 204* 6.1 2.9 210 WILLOW CREEK 8450 2.3 1.6 144* 6.4 3.4 188 ----- ----- Basin wide percent of average 150* 200 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.5 2.5 180* 4.4 2.0 220 BLACK BEAR 8170 3.6 2.5 144* 5.9 3.3 179 CANYON 8090 1.2 .6 200* 4.0 1.7 235 FISHER CREEK 9100 5.6 2.5 224* 6.7 3.1 216 MADISON PLATEAU 7750 1.6 1.5 107* 4.7 2.3 204 NORTHEAST ENTRANCE 7350 -M .3 * -M 1.4 * PARKER PEAK 9400 4.1 2.4 171* 5.2 2.2 236 SYLVAN LAKE 8420 2.0 1.8 111* 5.6 2.4 233 THUMB DIVIDE 7980 .8 .8 100* 4.3 1.9 226 TWO OCEAN PLATEAU 9240 5.7 2.8 204* 6.1 2.9 210 WHISKEY CREEK 6800 .9 .7 129* 4.3 2.1 205 WHITE MILL 8700 4.1 1.9 216* 5.0 2.5 200 WOLVERINE 7650 .1 .4 25* 3.3 1.7 194 ----- ----- Basin wide percent of average 168* 212 WIND RIVER BURROUGHS CREEK 8750 2.0 .9 222* 3.9 1.5 260 COLD SPRINGS 9630 .2 .9 22 2.3 1.8 128 DEER PARK 9700 1.4 2.4 58 3.1 2.3 135 HOBBS PARK 10100 1.4 2.0 70 3.2 2.0 160 LITTLE WARM 9370 1.2 1.0 120* 3.1 1.6 194 SOUTH PASS 9040 .2 1.4 14* 2.2 2.0 110 ST. LAWRENCE ALT 8620 .2 .8 25 1.4 1.6 87 TOGWOTEE PASS 9580 4.5 2.4 188* 5.6 2.6 215 TOWNSEND CREEK 8700 .2 1.0 20* 2.5 2.0 125 ----- ----- Basin wide percent of average 88* 157 BIGHORN BASIN BALD MTN. 9380 3.0 2.6 115 3.6 2.3 157 BEAR TRAP MEADOW 8200 .6 .5 120 1.9 1.6 119 BLACKWATER 9780 5.1 2.9 176 4.9 2.5 196 BONE SPRINGS DIV 9350 2.2 2.5 88 3.9 2.3 170 EVENING STAR 9200 4.0 2.5 160* 6.2 2.6 238 GRAVE SPRINGS 8550 1.1 1.0 110* 2.5 2.0 125 KIRWIN 9550 3.4 1.7 200 4.6 1.7 271 MARQUETTE 8760 .7 1.8 39 3.0 2.2 136 MIDDLE POWDER 7760 1.8 1.2 150* 2.4 2.4 100 OWL CREEK 8975 .6 .8 75 2.3 1.1 209 POWDER RIVER PASS 9480 1.2 1.2 100* 3.1 1.8 172 SHELL CREEK 9580 3.9 2.5 156 4.6 1.9 242 SYLVAN LAKE 8420 2.0 1.8 111* 5.6 2.4 233 SYLVAN ROAD 7120 .2 .4 50* 5.0 2.0 250 TIMBER CREEK 7950 .1 .9 11 3.0 1.5 200 YOUNTS PEAK 8350 2.1 1.3 162* 5.3 1.7 312 ----- ----- Basin wide percent of average 125 193 SHOSHONE RIVER BLACKWATER 9780 5.1 2.9 176 4.9 2.5 196 EVENING STAR 9200 4.0 2.5 160* 6.2 2.6 238 KIRWIN 9550 3.4 1.7 200 4.6 1.7 271 MARQUETTE 8760 .7 1.8 39 3.0 2.2 136 SYLVAN LAKE 8420 2.0 1.8 111* 5.6 2.4 233 SYLVAN ROAD 7120 .2 .4 50* 5.0 2.0 250 YOUNTS PEAK 8350 2.1 1.3 162* 5.3 1.7 312 ----- ----- Basin wide percent of average 141* 229 POWDER-TONGUE BEAR TRAP MEADOW 8200 .6 .5 120 1.9 1.6 119 BIG GOOSE 7990 1.5 .8 188* 4.1 2.0 205 BONE SPRINGS DIV 9350 2.2 2.5 88 3.9 2.3 170 BURGESS JUNCTION 7880 1.4 1.4 100 3.3 2.1 157 CLOUD PEAK RESERVOIR 9860 2.7 1.4 193* 5.0 2.4 208 DOME LAKE 8880 1.9 1.7 112 4.4 2.3 191 GRAVE SPRINGS 8550 1.1 1.0 110* 2.5 2.0 125 HANSEN SAWMILL 8360 .7 .8 87 2.8 1.7 165 MIDDLE POWDER 7760 1.8 1.2 150* 2.4 2.4 100 POWDER RIVER PASS 9480 1.2 1.2 100* 3.1 1.8 172 SUCKER CREEK 8880 1.7 1.2 142* 3.7 2.3 161 TIE CREEK 6870 .0 .7 0 2.9 2.3 126 ----- ----- Basin wide percent of average 117 159 BELLE FOURCHE BLIND PARK 6890 .1 .5 20* 1.5 2.4 62 COLE CANYON 5910 .0 .7 0 1.1 -M * NORTH RAPID CREEK 6130 .0 .4 0* 1.1 2.3 48 ----- ----- Basin wide percent of average 6* 55 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .7 0* 3.5 2.3 152 DIVIDE PEAK 8860 1.1 1.6 69* 2.6 2.5 104 ELK RIVER 8700 -M .6 * 3.1 2.1 148 JOE WRIGHT 10120 2.2 2.4 92* 4.8 3.2 150 NORTH FRENCH CREEK 10130 2.2 3.0 73* 3.8 3.2 119 OLD BATTLE 9920 2.5 2.8 89* 4.2 3.3 127 SAGE CREEK BASIN 7850 .0 .9 0* 2.1 1.4 150 SOUTH BRUSH CREEK 8440 .9 .7 129* 3.1 2.4 129 TOWER 10500 2.7 3.2 84* 4.8 3.7 130 WEBBER SPRINGS 9250 1.3 1.7 76* 3.5 2.9 121 WILLOW CREEK PASS 9540 2.1 1.0 210* 2.9 1.9 153 ----- ----- Basin wide percent of average 83* 133 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 1.1 2.1 52* 2.5 2.3 109 CASPER MTN. 7850 1.3 1.6 81* 3.3 2.3 143 DEADMAN HILL 10220 2.5 2.1 119 3.3 2.3 143 DEER PARK 9700 1.4 2.4 58 3.1 2.3 135 LAPRELE CREEK 8375 .6 1.0 60* 2.2 1.8 122 RENO HILL 8500 1.9 1.6 119 3.6 2.3 157 ROACH 9700 1.8 1.1 164* 3.2 2.2 145 SAND LAKE 10050 3.6 3.0 120* 4.2 2.9 145 SOUTH PASS 9040 .2 1.4 14* 2.2 2.0 110 WINDY PEAK 7900 .6 .5 120* 1.7 1.6 106 ----- ----- Basin wide percent of average 89* 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .5 * 2.0 1.8 111 DIVIDE PEAK 8860 1.1 1.6 69* 2.6 2.5 104 OLD BATTLE 9920 2.5 2.8 89* 4.2 3.3 127 SANDSTONE RS 8150 .0 .5 0* 2.2 2.2 100 WHISKEY PARK 8950 .9 1.6 56* 3.7 2.7 137 ----- ----- Basin wide percent of average 69* 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.2 1.1 109* 2.0 1.7 118 BLIND BULL SUM 8900 1.7 1.6 106* 3.1 2.1 148 EAST RIM DIVIDE 7930 .0 .6 0* 2.1 1.3 162 ELKHART PARK G.S. 9400 1.1 .8 138* 2.5 1.8 139 GROS VENTRE SUMMIT 8750 2.1 1.3 162* 3.9 1.7 229 KENDALL R.S. 7740 .2 .6 33* 2.3 1.4 164 LOOMIS PARK 8240 .9 .9 100* 2.4 1.7 141 NEW FORK LAKE 8340 .5 .5 100* 2.1 1.4 150 SNIDER BASIN 8060 .1 .7 14* 1.7 1.5 113 SPRING CREEK DIVIDE 9000 1.8 1.4 129* 3.3 2.4 138 TRIPLE PEAK 8500 1.5 1.1 136* 4.4 2.1 210 ----- ----- Basin wide percent of average 105* 156 LOWER GREEN RIVER HAMS FORK 7840 .0 .4 0* 1.6 1.4 114 HEWINTA 9500 .0 .8 0* 4.3 2.3 187 HICKERSON PARK 9100 .3 .4 75* 2.9 1.6 181 HOLE-IN-ROCK 9150 .2 .4 50* 3.4 1.5 227 INDIAN CREEK 9425 1.7 1.4 121* 2.7 2.4 113 KELLEY R.S. 8180 .5 .9 56* 2.8 2.0 140 STEEL CREEK PARK 10100 3.7 1.5 247* 4.6 2.2 209 ----- ----- Basin wide percent of average 110* 166 UPPER BEAR RIVER BUG LAKE 7950 .1 1.2 8* 1.5 2.2 68 HAYDEN FORK 9100 .2 .8 25* 3.4 2.3 148 KELLEY R.S. 8180 .5 .9 56* 2.8 2.0 140 LILY LAKE 9050 .2 .9 22* 3.5 2.3 152 MONTE CRISTO 8960 .1 1.5 7* 3.3 2.6 127 SALT RIVER SUMMIT 7600 .1 .3 33* 2.6 1.8 144 TRIAL LAKE 9960 1.2 1.8 67* 2.7 2.6 104 ----- ----- Basin wide percent of average 32* 125 ----------------------------------------------------------------------------- -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.