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 FRIDAY: OCTOBER 23 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .3 0* .6 1.4 43 COTTONWOOD CREEK 7600 .1 .3 33* 2.3 1.6 144 GRANITE CREEK 6770 .1 .3 33* .4 1.6 25 GRASSY LAKE 7265 .1 .5 20* .6 2.3 26 GROS VENTRE SUMMIT 8775 .9 .5 180* 1.4 1.1 127 LEWIS LAKE DIVIDE 7860 .0 .7 0* .5 2.4 21 PHILLIPS BENCH 8200 .2 .6 33* .5 1.8 28 SALT RIVER SUMMIT 7600 .0 .0 100* 1.3 1.2 108 SNAKE RIVER STATION 6920 .1 .3 33* .4 1.6 25 SPRING CREEK DIVIDE 9000 .2 .7 29* 1.3 1.5 87 THUMB DIVIDE 7980 .1 .2 50* .2 1.3 15 TOGWOTEE PASS 9580 1.2 1.6 75* 1.4 1.8 78 TWO OCEAN PLATEAU 9360 1.7 2.3 74* 1.4 2.0 70 WILLOW CREEK 8450 .0 .6 0* 2.3 2.0 115 ----- ----- Basin wide percent of average 53* 62 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.1 2.2 50* .9 1.3 69 BLACK BEAR 7950 .8 1.9 42* .9 2.5 36 CANYON 7940 .0 .5 0* .1 1.3 8 FISHER CREEK 9100 .5 1.7 29* .9 2.1 43 MADISON PLATEAU 7750 .2 1.0 20* .6 1.8 33 NORTHEAST ENTRANCE 7350 .0 .1 0* .3 1.1 27 PARKER PEAK 9400 .9 2.6 35 .7 1.6 44 SYLVAN LAKE 8420 .0 1.8 0* 1.0 1.8 56 THUMB DIVIDE 7980 .1 .2 50* .2 1.3 15 TWO OCEAN PLATEAU 9360 1.7 2.3 74* 1.4 2.0 70 WHISKEY CREEK 6800 .2 .5 40* .3 1.6 19 WHITE MILL 8700 .1 1.3 8* .6 1.9 32 WOLVERINE 7650 .1 .2 50* 1.1 1.1 100 ----- ----- Basin wide percent of average 35* 42 WIND RIVER BURROUGHS CREEK 8750 .6 .6 100* .9 1.1 82 COLD SPRINGS 9630 1.0 .6 167* 2.1 1.3 162 DEER PARK 9700 1.6 -M * 2.6 -M * HOBBS PARK 10100 3.2 1.4 229* 4.0 1.4 286 LITTLE WARM 9620 .7 .7 100* 1.7 1.3 131 SOUTH PASS 9040 1.1 1.9 58 2.4 1.6 150 ST. LAWRENCE ALT 8620 1.1 .5 220* 2.8 1.2 233 TOGWOTEE PASS 9580 1.2 1.6 75* 1.4 1.8 78 TOWNSEND CREEK 8700 1.8 .6 300* 3.6 1.3 277 ----- ----- Basin wide percent of average 135* 172 BIGHORN BASIN BALD MTN. 9375 2.1 2.0 105* 2.4 1.6 150 BEAR TRAP MEADOW 7900 .5 .4 125* 1.9 1.1 173 BLACKWATER 9780 2.0 1.9 105* 1.9 1.7 112 BONE SPRINGS DIV 9350 1.4 2.2 64 2.1 1.6 131 EVENING STAR 9200 .3 2.7 11* .8 2.1 38 GRAVE SPRINGS 8550 .9 -M * 2.2 1.3 169 KIRWIN 9550 1.9 1.1 173* 2.2 1.1 200 LOST CREEK 8080 -M .9 * -M 1.4 * MARQUETTE 8760 2.7 .7 386* 3.4 1.3 262 MIDDLE POWDER 7760 1.4 .9 156* 3.4 1.5 227 OWL CREEK 8975 1.6 .4 400* 2.1 .7 300 POWDER RIVER PASS 9480 .4 .8 50* 1.4 1.3 108 SHELL CREEK 9580 1.9 2.0 95 1.4 1.3 108 SYLVAN LAKE 8420 .0 1.8 0* 1.0 1.8 56 SYLVAN ROAD 8120 .2 1.1 18* .3 1.6 19 TIMBER CREEK 7950 1.6 .2 800* 2.6 .9 289 YOUNTS PEAK 8350 1.3 1.6 81* .8 1.3 62 ----- ----- Basin wide percent of average 97* 135 SHOSHONE RIVER BLACKWATER 9780 2.0 1.9 105* 1.9 1.7 112 EVENING STAR 9200 .3 2.7 11* .8 2.1 38 KIRWIN 9550 1.9 1.1 173* 2.2 1.1 200 MARQUETTE 8760 2.7 .7 386* 3.4 1.3 262 SYLVAN LAKE 8420 .0 1.8 0* 1.0 1.8 56 SYLVAN ROAD 8120 .2 1.1 18* .3 1.6 19 YOUNTS PEAK 8350 1.3 1.6 81* .8 1.3 62 ----- ----- Basin wide percent of average 77* 95 POWDER-TONGUE BEAR TRAP MEADOW 7900 .5 .4 125* 1.9 1.1 173 BONE SPRINGS DIV 9350 1.4 2.2 64 2.1 1.6 131 BURGESS JUNCTION 7880 .6 1.1 55* 1.9 1.4 136 CLOUD PEAK RESERVOIR 9860 1.2 .9 133* 3.2 1.5 213 DOME LAKE 8880 .9 1.4 64* 2.0 1.6 125 GRAVE SPRINGS 8550 .9 -M * 2.2 1.3 169 HANSEN SAWMILL 8760 .2 .5 40* 1.3 1.1 118 LOST CREEK 8080 -M .9 * -M 1.4 * MIDDLE POWDER 7760 1.4 .9 156* 3.4 1.5 227 POWDER RIVER PASS 9480 .4 .8 50* 1.4 1.3 108 SUCKER CREEK 8880 1.1 .9 122* 2.6 1.6 162 TIE CREEK 6870 .1 -M * -M 1.3 * ----- ----- Basin wide percent of average 85* 157 BELLE FOURCHE BLIND PARK 6890 .0 1.2 0 4.5 1.3 346 NORTH RAPID CREEK 6130 1.2 -M * 5.7 -M * WARREN PEAK 6520 -M 1.2 * 4.6 1.0 460 ----- ----- Basin wide percent of average 0* 396 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 1.0 0* 2.2 1.8 122 DIVIDE PEAK 8800 -M 1.3 * -M 2.2 * ELK RIVER 8700 .0 .2 0* 4.3 1.6 269 JOE WRIGHT 10120 1.9 2.0 95* 4.0 2.5 160 NORTH FRENCH CREEK 10100 2.4 1.4 171* 4.5 1.6 281 OLD BATTLE 10000 1.3 2.6 50* 3.7 2.3 161 SOUTH BRUSH CREEK 8400 1.2 .2 600* -M 1.6 * TOWER 10500 .5 3.9 13* 3.5 2.8 125 WEBBER SPRINGS 9200 .0 1.2 0* 2.9 2.1 138 WILLOW CREEK PASS 9540 .0 .6 0* 2.5 1.3 192 ----- ----- Basin wide percent of average 56* 173 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.0 1.4 71* .1 1.7 6 CASPER MTN. 7900 2.8 .8 350* 4.9 1.8 272 DEADMAN HILL 10220 1.8 .9 200* 3.0 1.7 176 DEER PARK 9700 1.6 -M * 2.6 -M * LAPRELE CREEK 8320 .0 .5 0* 3.5 1.1 318 RENO HILL 8400 4.0 1.1 364* 6.2 1.8 344 ROACH 9700 .6 .9 67* 2.1 1.9 111 SAND LAKE 10080 4.2 1.9 221* 6.2 1.8 344 SOUTH PASS 9040 1.1 1.9 58 2.4 1.6 150 WINDY PEAK 7840 .3 .1 300* 4.1 .9 456 ----- ----- Basin wide percent of average 166* 227 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .2 0* 2.1 1.3 162 DIVIDE PEAK 8800 -M 1.3 * -M 2.2 * OLD BATTLE 10000 1.3 2.6 50* 3.7 2.3 161 SANDSTONE RS 8150 .0 .4 0* 3.2 1.2 267 WHISKEY PARK 8950 .1 1.4 7* 3.7 1.3 285 ----- ----- Basin wide percent of average 30* 208 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.4 .3 467* 1.8 1.1 164 BLIND BULL SUM 8650 .7 1.1 64* 1.1 1.4 79 EAST RIM DIVIDE 7930 .1 .2 50* .7 1.1 64 ELKHART PARK G.S. 9400 .7 .5 140* 1.4 1.1 127 GROS VENTRE SUMMIT 8775 .9 .5 180* 1.4 1.1 127 KENDALL R.S. 7740 .2 .0 * .8 1.1 73 LOOMIS PARK 8240 .1 .2 50* 1.0 1.3 77 NEW FORK LAKE 8340 .5 .0 * .8 1.0 80 SNIDER BASIN 8250 .1 .0 * .7 1.1 64 SPRING CREEK DIVIDE 9000 .2 .7 29* 1.3 1.5 87 TRIPLE PEAK 8500 .5 .5 100* 1.3 2.0 65 ----- ----- Basin wide percent of average 115* 89 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 1.3 .9 144 HEWINTA 9500 .0 .1 0* 2.0 1.7 118 HICKERSON PARK 9150 1.0 .1 1000* 2.0 1.5 133 HOLE-IN-ROCK 9150 .7 .0 * 2.8 1.5 187 INDIAN CREEK 9425 .8 .8 100* 1.5 1.6 94 KELLEY R.S. 8180 .0 .2 0* 1.2 1.3 92 STEEL CREEK PARK 10100 .8 1.4 57* 2.7 1.7 159 ----- ----- Basin wide percent of average 100* 132 UPPER BEAR RIVER BUG LAKE 7950 .9 .8 112* 1.8 2.3 78 HAYDEN FORK 9400 .1 .6 17* 1.7 1.8 94 KELLEY R.S. 8180 .0 .2 0* 1.2 1.3 92 LILY LAKE 9050 1.2 .7 171* 2.7 1.9 142 MONTE CRISTO 8960 .0 1.0 0* 2.0 2.5 80 SALT RIVER SUMMIT 7600 .0 .0 100* 1.3 1.2 108 TRIAL LAKE 9960 .2 1.3 15* 1.3 2.1 62 ----- ----- Basin wide percent of average 52* 92 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. 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.