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 31 , 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 .7 0* 1.0 1.9 53 COTTONWOOD CREEK 7600 .0 .7 0* 3.1 2.1 148 GRANITE CREEK 6770 .2 .6 33* .8 2.2 36 GRASSY LAKE 7265 .2 1.0 20* 1.8 3.2 56 GROS VENTRE SUMMIT 8775 1.0 1.0 100* 1.8 1.5 120 LEWIS LAKE DIVIDE 7860 .3 1.3 23* 1.4 3.3 42 PHILLIPS BENCH 8200 .5 1.1 45* 1.1 2.5 44 SALT RIVER SUMMIT 7600 .1 .0 * 2.0 1.6 125 SNAKE RIVER STATION 6920 .1 .6 17* 1.1 2.2 50 SPRING CREEK DIVIDE 9000 .8 1.3 62* 2.3 2.0 115 THUMB DIVIDE 7980 .4 .5 80* .9 1.8 50 TOGWOTEE PASS 9580 2.0 2.2 91* 2.2 2.4 92 TWO OCEAN PLATEAU 9360 2.4 3.4 71 2.2 2.7 81 WILLOW CREEK 8450 .0 1.1 0* 3.7 2.7 137 ----- ----- Basin wide percent of average 51* 79 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.3 2.9 45 1.0 1.8 56 BLACK BEAR 7950 1.7 2.6 65* 2.2 3.4 65 CANYON 7940 .0 .8 0* .4 1.7 24 FISHER CREEK 9100 1.3 2.5 52* 1.6 2.9 55 MADISON PLATEAU 7750 .1 1.4 7* 1.3 2.4 54 NORTHEAST ENTRANCE 7350 .1 .3 33* .8 1.5 53 PARKER PEAK 9400 1.1 3.6 31 1.0 2.1 48 SYLVAN LAKE 8420 .4 2.4 17 1.6 2.5 64 THUMB DIVIDE 7980 .4 .5 80* .9 1.8 50 TWO OCEAN PLATEAU 9360 2.4 3.4 71 2.2 2.7 81 WHISKEY CREEK 6800 .3 .8 38* 1.0 2.1 48 WHITE MILL 8700 .7 1.8 39* 1.3 2.6 50 WOLVERINE 7650 .1 .3 33* 1.4 1.5 93 ----- ----- Basin wide percent of average 42* 58 WIND RIVER BURROUGHS CREEK 8750 .9 .9 100* 1.5 1.5 100 COLD SPRINGS 9630 1.2 .9 133* 2.4 1.8 133 DEER PARK 9700 2.5 -M * 3.6 -M * HOBBS PARK 10100 3.5 2.0 175 4.2 1.9 221 LITTLE WARM 9620 .8 1.0 80* 1.7 1.7 100 SOUTH PASS 9040 1.7 2.5 68 3.3 2.1 157 ST. LAWRENCE ALT 8620 1.0 .8 125 3.1 1.6 194 TOGWOTEE PASS 9580 2.0 2.2 91* 2.2 2.4 92 TOWNSEND CREEK 8700 1.9 1.0 190* 4.0 1.8 222 ----- ----- Basin wide percent of average 115* 151 BIGHORN BASIN BALD MTN. 9375 3.1 2.5 124 3.3 2.2 150 BEAR TRAP MEADOW 7900 .8 .7 114* 3.7 1.5 247 BLACKWATER 9780 2.4 2.4 100* 2.5 2.3 109 BONE SPRINGS DIV 9350 2.4 2.6 92 2.9 2.1 138 EVENING STAR 9200 .5 3.7 14 1.2 2.8 43 GRAVE SPRINGS 8550 1.3 -M * 4.1 1.8 228 KIRWIN 9550 2.0 1.5 133 2.4 1.5 160 LOST CREEK 8080 -M 1.3 * -M 1.9 * MARQUETTE 8760 2.5 1.0 250 3.4 1.7 200 MIDDLE POWDER 7760 .5 1.3 38* 6.4 2.0 320 OWL CREEK 8975 1.6 .5 320 2.2 1.0 220 POWDER RIVER PASS 9480 .7 1.2 58* 2.5 1.8 139 SHELL CREEK 9580 2.9 2.4 121 2.4 1.8 133 SYLVAN LAKE 8420 .4 2.4 17 1.6 2.5 64 SYLVAN ROAD 8120 .2 1.5 13 .6 2.1 29 TIMBER CREEK 7950 1.5 .3 500* 2.8 1.3 215 YOUNTS PEAK 8350 1.3 2.2 59 1.1 1.8 61 ----- ----- Basin wide percent of average 87 143 SHOSHONE RIVER BLACKWATER 9780 2.4 2.4 100* 2.5 2.3 109 EVENING STAR 9200 .5 3.7 14 1.2 2.8 43 KIRWIN 9550 2.0 1.5 133 2.4 1.5 160 MARQUETTE 8760 2.5 1.0 250 3.4 1.7 200 SYLVAN LAKE 8420 .4 2.4 17 1.6 2.5 64 SYLVAN ROAD 8120 .2 1.5 13 .6 2.1 29 YOUNTS PEAK 8350 1.3 2.2 59 1.1 1.8 61 ----- ----- Basin wide percent of average 63 87 POWDER-TONGUE BEAR TRAP MEADOW 7900 .8 .7 114* 3.7 1.5 247 BONE SPRINGS DIV 9350 2.4 2.6 92 2.9 2.1 138 BURGESS JUNCTION 7880 .8 1.5 53 3.2 1.9 168 CLOUD PEAK RESERVOIR 9860 2.1 1.3 162* 3.6 2.0 180 DOME LAKE 8880 1.2 1.8 67 2.8 2.2 127 GRAVE SPRINGS 8550 1.3 -M * 4.1 1.8 228 HANSEN SAWMILL 8760 .4 .8 50 2.1 1.5 140 LOST CREEK 8080 -M 1.3 * -M 1.9 * MIDDLE POWDER 7760 .5 1.3 38* 6.4 2.0 320 POWDER RIVER PASS 9480 .7 1.2 58* 2.5 1.8 139 SUCKER CREEK 8880 1.8 1.2 150* 3.3 2.1 157 TIE CREEK 6870 .2 -M * 3.5 1.8 194 ----- ----- Basin wide percent of average 86* 184 BELLE FOURCHE BLIND PARK 6890 .1 1.6 6 5.8 1.7 341 NORTH RAPID CREEK 6130 .0 -M * 6.3 -M * WARREN PEAK 6520 .0 1.6 0 6.1 1.4 436 ----- ----- Basin wide percent of average 3 384 UPPER N. PLATTE RIVER COLUMBINE 9400 1.1 1.5 73* 3.8 2.4 158 DIVIDE PEAK 8800 1.3 2.0 65* 6.1 3.0 203 ELK RIVER 8700 .7 .4 175* 6.1 2.2 277 JOE WRIGHT 10120 3.8 3.0 127 6.2 3.4 182 NORTH FRENCH CREEK 10100 5.1 2.1 243* 7.3 2.2 332 OLD BATTLE 10000 2.8 3.5 80* 5.7 3.1 184 SOUTH BRUSH CREEK 8400 2.6 .4 650* -M 2.2 * TOWER 10500 2.8 5.8 48 6.2 3.9 159 WEBBER SPRINGS 9200 .7 1.8 39* 4.2 2.9 145 WILLOW CREEK PASS 9540 1.2 1.0 120* 2.9 1.7 171 ----- ----- Basin wide percent of average 103* 196 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.6 1.8 89* .0 2.3 0 CASPER MTN. 7900 2.1 1.2 175* 7.6 2.4 317 DEADMAN HILL 10220 3.4 1.3 262* 4.3 2.3 187 DEER PARK 9700 2.5 -M * 3.6 -M * LAPRELE CREEK 8320 .0 .9 0* 5.1 1.5 340 RENO HILL 8400 3.8 1.6 238 7.5 2.4 313 ROACH 9700 1.5 1.3 115* 3.6 2.6 138 SAND LAKE 10080 5.4 3.0 180* 7.5 2.5 300 SOUTH PASS 9040 1.7 2.5 68 3.3 2.1 157 WINDY PEAK 7840 .0 .2 0* 4.9 1.2 408 ----- ----- Basin wide percent of average 141* 227 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .4 0* 3.8 1.7 224 DIVIDE PEAK 8800 1.3 2.0 65* 6.1 3.0 203 OLD BATTLE 10000 2.8 3.5 80* 5.7 3.1 184 SANDSTONE RS 8150 .1 .8 12* 4.6 1.6 288 WHISKEY PARK 8950 1.3 2.2 59* 5.8 1.8 322 ----- ----- Basin wide percent of average 62* 232 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.4 .7 200* 2.0 1.5 133 BLIND BULL SUM 8650 .8 2.2 36* 2.0 1.9 105 EAST RIM DIVIDE 7930 .2 .4 50* 1.4 1.5 93 ELKHART PARK G.S. 9400 1.3 .9 144* 2.2 1.5 147 GROS VENTRE SUMMIT 8775 1.0 1.0 100* 1.8 1.5 120 KENDALL R.S. 7740 .5 .0 * 1.3 1.5 87 LOOMIS PARK 8240 .4 .5 80* 1.8 1.7 106 NEW FORK LAKE 8340 .5 .0 * 1.1 1.4 79 SNIDER BASIN 8250 .3 .0 * 1.2 1.5 80 SPRING CREEK DIVIDE 9000 .8 1.3 62* 2.3 2.0 115 TRIPLE PEAK 8500 .6 .9 67* 2.0 2.7 74 ----- ----- Basin wide percent of average 82* 102 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 1.8 1.3 138 HEWINTA 9500 .0 .2 0* 2.5 2.3 109 HICKERSON PARK 9150 .7 .2 350* 2.6 2.0 130 HOLE-IN-ROCK 9150 .5 .1 500* 3.3 2.0 165 INDIAN CREEK 9425 1.5 1.6 94* 2.0 2.2 91 KELLEY R.S. 8180 .4 .5 80* 1.9 1.7 112 STEEL CREEK PARK 10100 1.8 1.9 95 3.1 2.3 135 ----- ----- Basin wide percent of average 109* 125 UPPER BEAR RIVER BUG LAKE 7950 .0 1.1 0* 2.3 3.2 72 HAYDEN FORK 9400 .1 .9 11* 2.2 2.4 92 KELLEY R.S. 8180 .4 .5 80* 1.9 1.7 112 LILY LAKE 9050 1.5 1.0 150* 3.3 2.6 127 MONTE CRISTO 8960 .5 1.4 36* 3.0 3.4 88 SALT RIVER SUMMIT 7600 .1 .0 * 2.0 1.6 125 TRIAL LAKE 9960 .8 1.8 44* 2.3 2.8 82 ----- ----- Basin wide percent of average 49* 96 ----------------------------------------------------------------------------- -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.