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 24 , 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 .4 0* .6 1.5 40 COTTONWOOD CREEK 7600 .2 .4 50* 2.5 1.6 156 GRANITE CREEK 6770 .1 .3 33* .4 1.7 24 GRASSY LAKE 7265 .3 .6 50* 1.1 2.4 46 GROS VENTRE SUMMIT 8775 .9 .6 150* 1.4 1.2 117 LEWIS LAKE DIVIDE 7860 .2 .7 29* .8 2.5 32 PHILLIPS BENCH 8200 .3 .6 50* .6 1.9 32 SALT RIVER SUMMIT 7600 .0 .0 100* 1.5 1.3 115 SNAKE RIVER STATION 6920 .1 .3 33* .8 1.7 47 SPRING CREEK DIVIDE 9000 .4 .7 57* 1.6 1.6 100 THUMB DIVIDE 7980 .1 .3 33* .4 1.4 29 TOGWOTEE PASS 9580 1.6 1.7 94* 1.7 1.9 89 TWO OCEAN PLATEAU 9360 1.9 2.5 76* 1.7 2.1 81 WILLOW CREEK 8450 .0 .6 0* 2.5 2.1 119 ----- ----- Basin wide percent of average 63* 71 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.1 2.3 48* .8 1.4 57 BLACK BEAR 7950 1.3 2.0 65* 1.5 2.6 58 CANYON 7940 .1 .5 20* .3 1.3 23 FISHER CREEK 9100 .6 1.8 33* 1.0 2.2 45 MADISON PLATEAU 7750 .2 1.0 20* 1.0 1.9 53 NORTHEAST ENTRANCE 7350 .0 .2 0* .4 1.1 36 PARKER PEAK 9400 .9 2.8 32 .8 1.6 50 SYLVAN LAKE 8420 .1 1.8 6* 1.1 1.9 58 THUMB DIVIDE 7980 .1 .3 33* .4 1.4 29 TWO OCEAN PLATEAU 9360 1.9 2.5 76* 1.7 2.1 81 WHISKEY CREEK 6800 .1 .5 20* .7 1.6 44 WHITE MILL 8700 .1 1.4 7* .6 2.0 30 WOLVERINE 7650 .1 .2 50* 1.1 1.2 92 ----- ----- Basin wide percent of average 38* 51 WIND RIVER BURROUGHS CREEK 8750 .7 .6 117* 1.0 1.2 83 COLD SPRINGS 9630 1.0 .6 167* 2.0 1.4 143 DEER PARK 9700 1.7 -M * 2.7 -M * HOBBS PARK 10100 3.2 1.5 213* 3.9 1.5 260 LITTLE WARM 9620 .7 .7 100* 1.7 1.3 131 SOUTH PASS 9040 1.1 2.0 55 2.4 1.6 150 ST. LAWRENCE ALT 8620 1.0 .6 167* 2.8 1.3 215 TOGWOTEE PASS 9580 1.6 1.7 94* 1.7 1.9 89 TOWNSEND CREEK 8700 1.8 .7 257* 3.6 1.4 257 ----- ----- Basin wide percent of average 132* 165 BIGHORN BASIN BALD MTN. 9375 2.1 2.0 105* 2.3 1.7 135 BEAR TRAP MEADOW 7900 .4 .5 80* 1.8 1.2 150 BLACKWATER 9780 2.0 1.9 105* 2.0 1.8 111 BONE SPRINGS DIV 9350 1.4 2.2 64 2.0 1.6 125 EVENING STAR 9200 .3 2.8 11* .8 2.2 36 GRAVE SPRINGS 8550 .9 -M * 2.2 1.4 157 KIRWIN 9550 1.9 1.1 173* 2.2 1.2 183 LOST CREEK 8080 -M 1.0 * -M 1.5 * MARQUETTE 8760 2.7 .8 338* 3.4 1.3 262 MIDDLE POWDER 7760 1.3 1.0 130* 3.4 1.6 212 OWL CREEK 8975 1.5 .5 300* 2.1 .7 300 POWDER RIVER PASS 9480 .3 .9 33* 1.4 1.4 100 SHELL CREEK 9580 1.9 2.0 95 1.4 1.4 100 SYLVAN LAKE 8420 .1 1.8 6* 1.1 1.9 58 SYLVAN ROAD 8120 .2 1.1 18* .4 1.6 25 TIMBER CREEK 7950 1.6 .2 800* 2.6 1.0 260 YOUNTS PEAK 8350 1.3 1.7 76* .9 1.4 64 ----- ----- Basin wide percent of average 93* 128 SHOSHONE RIVER BLACKWATER 9780 2.0 1.9 105* 2.0 1.8 111 EVENING STAR 9200 .3 2.8 11* .8 2.2 36 KIRWIN 9550 1.9 1.1 173* 2.2 1.2 183 MARQUETTE 8760 2.7 .8 338* 3.4 1.3 262 SYLVAN LAKE 8420 .1 1.8 6* 1.1 1.9 58 SYLVAN ROAD 8120 .2 1.1 18* .4 1.6 25 YOUNTS PEAK 8350 1.3 1.7 76* .9 1.4 64 ----- ----- Basin wide percent of average 76* 95 POWDER-TONGUE BEAR TRAP MEADOW 7900 .4 .5 80* 1.8 1.2 150 BONE SPRINGS DIV 9350 1.4 2.2 64 2.0 1.6 125 BURGESS JUNCTION 7880 .5 1.2 42* 1.9 1.5 127 CLOUD PEAK RESERVOIR 9860 1.2 1.0 120* 3.0 1.6 188 DOME LAKE 8880 .8 1.4 57* 2.1 1.7 124 GRAVE SPRINGS 8550 .9 -M * 2.2 1.4 157 HANSEN SAWMILL 8760 .2 .6 33* 1.3 1.2 108 LOST CREEK 8080 -M 1.0 * -M 1.5 * MIDDLE POWDER 7760 1.3 1.0 130* 3.4 1.6 212 POWDER RIVER PASS 9480 .3 .9 33* 1.4 1.4 100 SUCKER CREEK 8880 1.1 .9 122* 2.5 1.6 156 TIE CREEK 6870 .1 -M * -M 1.4 * ----- ----- Basin wide percent of average 74* 146 BELLE FOURCHE BLIND PARK 6890 .0 1.2 0 4.5 1.3 346 NORTH RAPID CREEK 6130 .9 -M * 5.7 -M * WARREN PEAK 6520 .5 1.2 42 4.6 1.0 460 ----- ----- Basin wide percent of average 21 396 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 1.1 0* 2.3 1.9 121 DIVIDE PEAK 8800 1.1 1.4 79* 4.3 2.3 187 ELK RIVER 8700 .0 .2 0* 4.3 1.7 253 JOE WRIGHT 10120 2.6 2.2 118* 4.1 2.6 158 NORTH FRENCH CREEK 10100 2.5 1.4 179* 4.6 1.7 271 OLD BATTLE 10000 1.4 2.8 50* 3.8 2.4 158 SOUTH BRUSH CREEK 8400 1.0 .3 333* 7.8 1.7 459 TOWER 10500 .4 4.2 10* 3.8 3.0 127 WEBBER SPRINGS 9200 .0 1.2 0* 2.9 2.2 132 WILLOW CREEK PASS 9540 .0 .7 0* 2.4 1.3 185 ----- ----- Basin wide percent of average 58* 194 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.1 1.4 79* .1 1.8 6 CASPER MTN. 7900 2.7 .9 300* 4.9 1.9 258 DEADMAN HILL 10220 2.3 .9 256* 3.1 1.8 172 DEER PARK 9700 1.7 -M * 2.7 -M * LAPRELE CREEK 8320 .0 .5 0* 3.6 1.1 327 RENO HILL 8400 4.0 1.2 333* 6.2 1.9 326 ROACH 9700 .6 .9 67* 2.2 2.0 110 SAND LAKE 10080 4.2 2.1 200* 6.2 1.9 326 SOUTH PASS 9040 1.1 2.0 55 2.4 1.6 150 WINDY PEAK 7840 .0 .1 0* 4.0 .9 444 ----- ----- Basin wide percent of average 160* 219 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .2 0* 2.2 1.3 169 DIVIDE PEAK 8800 1.1 1.4 79* 4.3 2.3 187 OLD BATTLE 10000 1.4 2.8 50* 3.8 2.4 158 SANDSTONE RS 8150 .0 .4 0* 3.4 1.3 262 WHISKEY PARK 8950 .2 1.5 13* 3.9 1.4 279 ----- ----- Basin wide percent of average 43* 202 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.4 .4 350* 1.8 1.2 150 BLIND BULL SUM 8650 1.0 1.2 83* 1.5 1.5 100 EAST RIM DIVIDE 7930 .0 .2 0* .7 1.1 64 ELKHART PARK G.S. 9400 .8 .5 160* 1.5 1.2 125 GROS VENTRE SUMMIT 8775 .9 .6 150* 1.4 1.2 117 KENDALL R.S. 7740 .2 .0 * .8 1.1 73 LOOMIS PARK 8240 .2 .3 67* 1.1 1.3 85 NEW FORK LAKE 8340 .4 .0 * .8 1.0 80 SNIDER BASIN 8250 .2 .0 * .9 1.1 82 SPRING CREEK DIVIDE 9000 .4 .7 57* 1.6 1.6 100 TRIPLE PEAK 8500 .6 .5 120* 1.4 2.1 67 ----- ----- Basin wide percent of average 120* 94 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 1.4 1.0 140 HEWINTA 9500 -M .2 * 2.1 1.8 117 HICKERSON PARK 9150 .8 .1 800* 2.1 1.6 131 HOLE-IN-ROCK 9150 .8 .1 800* 2.8 1.6 175 INDIAN CREEK 9425 .9 .9 100* 1.6 1.7 94 KELLEY R.S. 8180 .1 .3 33* 1.3 1.3 100 STEEL CREEK PARK 10100 .8 1.4 57* 2.5 1.8 139 ----- ----- Basin wide percent of average 121* 128 UPPER BEAR RIVER BUG LAKE 7950 .6 .9 67* 1.9 2.4 79 HAYDEN FORK 9400 .0 .6 0* 1.8 1.9 95 KELLEY R.S. 8180 .1 .3 33* 1.3 1.3 100 LILY LAKE 9050 1.1 .7 157* 2.8 2.0 140 MONTE CRISTO 8960 .0 1.1 0* 2.1 2.6 81 SALT RIVER SUMMIT 7600 .0 .0 100* 1.5 1.3 115 TRIAL LAKE 9960 .2 1.3 15* 1.4 2.2 64 ----- ----- Basin wide percent of average 41* 93 ----------------------------------------------------------------------------- -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.