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 , 2001 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .5 .6 83* 2.6 1.8 144 COTTONWOOD CREEK 7600 1.0 .6 167* 2.4 2.0 120 GRANITE CREEK 6770 .4 .5 80* 2.5 2.1 119 GRASSY LAKE 7265 1.0 .9 111* 2.8 3.0 93 GROS VENTRE SUMMIT 8775 1.6 .9 178* 1.3 1.4 93 LEWIS LAKE DIVIDE 7860 1.7 1.2 142* 2.6 3.1 84 PHILLIPS BENCH 8200 2.3 1.0 230* 2.8 2.3 122 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 1.5 80 SNAKE RIVER STATION 6920 .1 .5 20* 2.0 2.1 95 SPRING CREEK DIVIDE 9000 3.0 1.2 250* 3.0 1.9 158 THUMB DIVIDE 7980 .4 .4 100* 1.5 1.7 88 TOGWOTEE PASS 9580 3.2 2.1 152* 3.3 2.3 143 TWO OCEAN PLATEAU 9360 3.1 3.1 100 2.6 2.5 104 WILLOW CREEK 8450 .6 1.0 60* 2.6 2.5 104 ----- ----- Basin wide percent of average 135* 110 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 3.2 2.7 119 3.3 1.7 194 BLACK BEAR 7950 -M 2.4 * -M 3.2 * CANYON 7940 1.2 .7 171* 1.7 1.6 106 FISHER CREEK 9100 3.7 2.3 161* 4.3 2.7 159 MADISON PLATEAU 7750 1.4 1.3 108* 2.4 2.3 104 NORTHEAST ENTRANCE 7350 .2 .2 100* 1.5 1.4 107 PARKER PEAK 9400 1.9 3.3 58 1.5 2.0 75 SYLVAN LAKE 8420 2.0 2.3 87* 2.7 2.3 117 THUMB DIVIDE 7980 .4 .4 100* 1.5 1.7 88 TWO OCEAN PLATEAU 9360 3.1 3.1 100 2.6 2.5 104 WHISKEY CREEK 6800 .8 .7 114* 1.7 2.0 85 WHITE MILL 8700 3.2 1.7 188* 3.0 2.4 125 WOLVERINE 7650 .1 .3 33* 2.2 1.4 157 ----- ----- Basin wide percent of average 112* 118 WIND RIVER BURROUGHS CREEK 8750 2.2 .8 275* 2.5 1.4 179 COLD SPRINGS 9630 .4 .8 50* .9 1.7 53 DEER PARK 9700 1.3 -M * 1.6 -M * HOBBS PARK 10100 1.2 1.9 63 1.2 1.8 67 LITTLE WARM 9620 1.5 .9 167* 1.8 1.6 112 SOUTH PASS 9040 .5 2.4 21 1.5 2.0 75 ST. LAWRENCE ALT 8620 .0 .7 0* .5 1.5 33 TOGWOTEE PASS 9580 3.2 2.1 152* 3.3 2.3 143 TOWNSEND CREEK 8700 .0 .9 0* .5 1.7 29 ----- ----- Basin wide percent of average 86* 87 BIGHORN BASIN BALD MTN. 9375 3.7 2.4 154* 3.7 2.1 176 BEAR TRAP MEADOW 7900 1.1 .6 183* 2.1 1.4 150 BLACKWATER 9780 2.6 2.3 113* 2.2 2.2 100 BONE SPRINGS DIV 9350 3.5 2.5 140 3.6 2.0 180 EVENING STAR 9200 2.8 3.4 82 3.9 2.6 150 GRAVE SPRINGS 8550 1.1 .9 122* 2.5 1.7 147 KIRWIN 9550 1.8 1.4 129 1.9 1.4 136 MARQUETTE 8760 .8 .9 89 1.3 1.6 81 MIDDLE POWDER 7760 1.3 1.2 108* 2.3 1.9 121 OWL CREEK 8975 .1 .5 20 .5 .9 56 POWDER RIVER PASS 9480 2.2 1.1 200* 3.2 1.7 188 SHELL CREEK 9580 3.6 2.3 157 3.4 1.7 200 SYLVAN LAKE 8420 2.0 2.3 87* 2.7 2.3 117 SYLVAN ROAD 8120 .6 1.4 43 2.6 2.0 130 TIMBER CREEK 7950 .1 .3 33* 1.0 1.2 83 YOUNTS PEAK 8350 2.2 2.1 105 2.2 1.7 129 ----- ----- Basin wide percent of average 115 138 SHOSHONE RIVER BLACKWATER 9780 2.6 2.3 113* 2.2 2.2 100 EVENING STAR 9200 2.8 3.4 82 3.9 2.6 150 KIRWIN 9550 1.8 1.4 129 1.9 1.4 136 MARQUETTE 8760 .8 .9 89 1.3 1.6 81 SYLVAN LAKE 8420 2.0 2.3 87* 2.7 2.3 117 SYLVAN ROAD 8120 .6 1.4 43 2.6 2.0 130 YOUNTS PEAK 8350 2.2 2.1 105 2.2 1.7 129 ----- ----- Basin wide percent of average 93 122 POWDER-TONGUE BEAR TRAP MEADOW 7900 1.1 .6 183* 2.1 1.4 150 BIG GOOSE 7990 1.4 -M * 3.1 -M * BONE SPRINGS DIV 9350 3.5 2.5 140 3.6 2.0 180 BURGESS JUNCTION 7880 1.6 1.4 114 2.9 1.8 161 CLOUD PEAK RESERVOIR 9860 2.4 1.2 200* 4.0 1.9 211 DOME LAKE 8880 2.4 1.7 141 3.7 2.1 176 GRAVE SPRINGS 8550 1.1 .9 122* 2.5 1.7 147 HANSEN SAWMILL 8760 .2 .7 29* 2.0 1.4 143 MIDDLE POWDER 7760 1.3 1.2 108* 2.3 1.9 121 POWDER RIVER PASS 9480 2.2 1.1 200* 3.2 1.7 188 SUCKER CREEK 8880 2.6 1.1 236* 4.1 2.0 205 TIE CREEK 6870 .0 -M * 2.8 1.7 165 ----- ----- Basin wide percent of average 148* 169 BELLE FOURCHE BLIND PARK 6890 .0 1.5 0 2.7 1.6 169 COLE CANYON 5910 .0 .7 0 1.5 1.3 115 NORTH RAPID CREEK 6130 .2 -M * 2.3 -M * ----- ----- Basin wide percent of average 0 145 UPPER N. PLATTE RIVER COLUMBINE 9400 .2 1.4 14* 2.1 2.3 91 DIVIDE PEAK 8800 .4 1.8 22* 2.4 2.8 86 ELK RIVER 8700 .2 .3 67* 1.5 2.1 71 JOE WRIGHT 10120 -M 2.7 * 2.1 3.2 66 NORTH FRENCH CREEK 10100 2.6 1.9 137* 2.2 2.1 105 OLD BATTLE 10000 1.0 3.3 30* 2.5 2.9 86 SOUTH BRUSH CREEK 8400 .1 .3 33* 1.8 2.1 86 TOWER 10500 1.8 5.3 34 2.7 3.6 75 WEBBER SPRINGS 9200 .3 1.7 18* 1.8 2.7 67 WILLOW CREEK PASS 9540 .0 .9 0* .8 1.6 50 ----- ----- Basin wide percent of average 39* 78 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.8 1.7 106* 2.8 2.2 127 CASPER MTN. 7900 1.7 1.1 155* 3.1 2.3 135 DEADMAN HILL 10220 .6 1.2 50* 1.3 2.2 59 DEER PARK 9700 1.3 -M * 1.6 -M * LAPRELE CREEK 8320 .4 .8 50* 2.8 1.4 200 RENO HILL 8400 2.0 1.5 133* 3.3 2.3 143 ROACH 9700 .3 1.2 25* 1.1 2.4 46 SAND LAKE 10080 3.0 2.7 111* 3.0 2.3 130 SOUTH PASS 9040 .5 2.4 21 1.5 2.0 75 WINDY PEAK 7840 .2 .2 100* 2.5 1.1 227 ----- ----- Basin wide percent of average 82* 118 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .3 .3 100* 1.0 1.6 62 DIVIDE PEAK 8800 .4 1.8 22* 2.4 2.8 86 OLD BATTLE 10000 1.0 3.3 30* 2.5 2.9 86 SANDSTONE RS 8150 .0 .7 0* 2.2 1.5 147 WHISKEY PARK 8950 .9 2.0 45* 2.2 1.7 129 ----- ----- Basin wide percent of average 32* 98 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.4 .6 233* 1.0 1.4 71 BLIND BULL SUM 8650 3.1 1.9 163* 2.6 1.8 144 EAST RIM DIVIDE 7930 .7 .3 233* 1.0 1.4 71 ELKHART PARK G.S. 9400 1.4 .8 175* 1.2 1.4 86 GROS VENTRE SUMMIT 8775 1.6 .9 178* 1.3 1.4 93 KENDALL R.S. 7740 .8 .0 * 1.7 1.4 121 LOOMIS PARK 8240 2.0 .4 500* 2.1 1.6 131 NEW FORK LAKE 8340 .9 .0 * 1.3 1.3 100 SNIDER BASIN 8250 .9 .0 * 2.2 1.4 157 SPRING CREEK DIVIDE 9000 3.0 1.2 250* 3.0 1.9 158 TRIPLE PEAK 8500 2.6 .8 325* 3.8 2.5 152 ----- ----- Basin wide percent of average 229* 121 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * .4 1.2 33 HEWINTA 9500 .0 .2 0* 1.6 2.2 73 HICKERSON PARK 9150 .1 .2 50* .6 1.9 32 HOLE-IN-ROCK 9150 .0 .1 0* 2.3 1.9 121 INDIAN CREEK 9425 1.6 1.4 114* 1.4 2.1 67 KELLEY R.S. 8180 .1 .4 25* .8 1.6 50 STEEL CREEK PARK 10100 .9 1.8 50* 1.5 2.2 68 ----- ----- Basin wide percent of average 66* 66 UPPER BEAR RIVER BUG LAKE 7950 .0 1.0 0* .6 3.0 20 HAYDEN FORK 9400 .1 .8 12* 1.3 2.3 57 KELLEY R.S. 8180 .1 .4 25* .8 1.6 50 LILY LAKE 9050 .0 .9 0* 1.2 2.4 50 MONTE CRISTO 8960 .0 1.3 0* 1.8 3.2 56 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 1.5 80 TRIAL LAKE 9960 .0 1.7 0* 1.5 2.6 58 ----- ----- Basin wide percent of average 3* 51 ----------------------------------------------------------------------------- -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.