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: DECEMBER 5 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 4.8 4.4 109 6.5 7.1 92 COTTONWOOD CREEK 7600 3.9 4.8 81 7.3 7.5 97 GRANITE CREEK 6770 3.3 3.9 85 5.0 7.4 68 GRASSY LAKE 7265 8.8 7.8 113 10.5 11.5 91 GROS VENTRE SUMMIT 8775 4.7 4.1 115 5.4 5.1 106 LEWIS LAKE DIVIDE 7860 9.0 7.7 117 11.4 11.6 98 PHILLIPS BENCH 8200 6.8 6.3 108 7.5 9.0 83 SALT RIVER SUMMIT 7600 1.9 2.5 76 4.3 5.4 80 SNAKE RIVER STATION 6920 -M 4.3 * -M 8.0 * SPRING CREEK DIVIDE 9000 5.2 6.7 78 6.6 8.2 80 THUMB DIVIDE 7980 7.7 4.1 188 8.1 6.6 123 TOGWOTEE PASS 9580 7.8 6.7 116 8.1 8.7 93 TWO OCEAN PLATEAU 9360 11.5 8.5 135 10.7 9.8 109 WILLOW CREEK 8450 6.4 7.1 90 11.5 9.9 116 ----- ----- Basin wide percent of average 110 95 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 7.3 7.5 97 6.3 5.5 115 BLACK BEAR 7950 14.2 9.3 153 13.9 10.8 129 CANYON 7940 4.7 3.1 152 5.7 4.6 124 FISHER CREEK 9100 12.5 9.7 129 11.3 10.1 112 MADISON PLATEAU 7750 -M 6.0 * 11.1 7.5 148 NORTHEAST ENTRANCE 7350 2.4 2.2 109 4.3 4.0 108 PARKER PEAK 9400 6.9 7.6 91 -M 5.3 * SYLVAN LAKE 8420 8.5 7.3 116 10.5 6.9 152 THUMB DIVIDE 7980 7.7 4.1 188 8.1 6.6 123 TWO OCEAN PLATEAU 9360 11.5 8.5 135 10.7 9.8 109 WHISKEY CREEK 6800 6.8 4.2 162 8.6 6.1 141 WHITE MILL 8700 7.5 6.8 110 7.5 8.2 91 WOLVERINE 7650 3.7 2.7 137 4.3 4.4 98 ----- ----- Basin wide percent of average 128 121 WIND RIVER BURROUGHS CREEK 8750 3.9 4.2 93 4.4 5.5 80 COLD SPRINGS 9630 4.0 3.0 133 5.5 4.2 131 DEER PARK 9700 4.7 -M * 7.1 -M * HOBBS PARK 10100 6.8 5.4 126 7.1 4.7 151 LITTLE WARM 9620 4.4 3.5 126 5.1 4.8 106 SOUTH PASS 9040 4.6 5.7 81 6.3 5.6 113 ST. LAWRENCE ALT 8620 3.3 2.2 150 5.9 4.0 148 TOGWOTEE PASS 9580 7.8 6.7 116 8.1 8.7 93 TOWNSEND CREEK 8700 3.6 3.0 120 6.2 4.1 151 ----- ----- Basin wide percent of average 114 117 BIGHORN BASIN BALD MTN. 9375 5.4 6.6 82 5.4 5.6 96 BEAR TRAP MEADOW 7900 2.2 2.3 96 5.2 3.3 158 BLACKWATER 9780 10.9 6.3 173 9.8 6.0 163 BONE SPRINGS DIV 9350 4.2 5.4 78 4.6 4.7 98 EVENING STAR 9200 9.9 9.2 108 10.2 7.3 140 GRAVE SPRINGS 8550 2.0 3.1 65 5.3 3.8 139 KIRWIN 9550 4.5 3.6 125 5.2 3.9 133 MARQUETTE 8760 4.5 2.6 173 5.1 3.7 138 MIDDLE POWDER 7760 1.8 3.9 46 7.9 4.3 184 OWL CREEK 8975 2.6 1.2 217 3.2 2.1 152 POWDER RIVER PASS 9480 2.4 3.5 69 4.3 4.0 108 SHELL CREEK 9580 4.6 5.2 88 4.1 4.4 93 SYLVAN LAKE 8420 8.5 7.3 116 10.5 6.9 152 SYLVAN ROAD 8120 5.0 3.8 132 6.3 5.6 113 TIMBER CREEK 7950 2.9 1.4 207 4.4 2.6 169 YOUNTS PEAK 8350 6.1 5.9 103 5.4 5.4 100 ----- ----- Basin wide percent of average 109 132 SHOSHONE RIVER BLACKWATER 9780 10.9 6.3 173 9.8 6.0 163 EVENING STAR 9200 9.9 9.2 108 10.2 7.3 140 KIRWIN 9550 4.5 3.6 125 5.2 3.9 133 MARQUETTE 8760 4.5 2.6 173 5.1 3.7 138 SYLVAN LAKE 8420 8.5 7.3 116 10.5 6.9 152 SYLVAN ROAD 8120 5.0 3.8 132 6.3 5.6 113 YOUNTS PEAK 8350 6.1 5.9 103 5.4 5.4 100 ----- ----- Basin wide percent of average 128 135 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.2 2.3 96 5.2 3.3 158 BIG GOOSE 7990 1.9 -M * 4.8 -M * BONE SPRINGS DIV 9350 4.2 5.4 78 4.6 4.7 98 BURGESS JUNCTION 7880 1.9 3.9 49 4.5 4.0 112 CLOUD PEAK RESERVOIR 9860 4.1 3.7 111 5.4 4.5 120 DOME LAKE 8880 2.4 4.3 56 4.1 5.0 82 GRAVE SPRINGS 8550 2.0 3.1 65 5.3 3.8 139 HANSEN SAWMILL 8760 1.8 2.3 78 3.4 3.1 110 MIDDLE POWDER 7760 1.8 3.9 46 7.9 4.3 184 POWDER RIVER PASS 9480 2.4 3.5 69 4.3 4.0 108 SUCKER CREEK 8880 3.3 3.2 103 4.9 4.5 109 TIE CREEK 6870 .6 -M * 3.6 3.8 95 ----- ----- Basin wide percent of average 73 118 BELLE FOURCHE BLIND PARK 6890 1.6 3.7 43 7.3 3.4 215 NORTH RAPID CREEK 6130 .8 -M * 7.8 -M * WARREN PEAK 6520 1.8 3.7 49 7.6 2.9 262 ----- ----- Basin wide percent of average 46 237 UPPER N. PLATTE RIVER COLUMBINE 9400 3.2 5.6 57 6.2 6.8 91 DIVIDE PEAK 8800 5.1 6.2 82 11.0 7.4 149 ELK RIVER 8700 1.3 4.2 31 8.0 5.6 143 JOE WRIGHT 10120 5.2 7.1 73 9.0 8.3 108 NORTH FRENCH CREEK 10100 8.6 7.4 116 11.0 6.7 164 OLD BATTLE 10000 8.0 9.7 82 11.9 9.5 125 SOUTH BRUSH CREEK 8400 3.2 2.8 114 8.8 5.8 152 TOWER 10500 11.6 14.8 78 11.6 10.8 107 WEBBER SPRINGS 9200 4.4 7.7 57 8.8 9.1 97 WILLOW CREEK PASS 9540 3.9 3.6 108 5.1 4.2 121 ----- ----- Basin wide percent of average 79 123 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 3.9 7.7 51 6.5 5.7 114 CASPER MTN. 7900 2.8 5.2 54 8.5 5.4 157 DEADMAN HILL 10220 4.6 5.0 92 6.1 5.4 113 DEER PARK 9700 4.7 -M * 7.1 -M * LAPRELE CREEK 8320 .3 3.1 10 6.0 3.5 171 RENO HILL 8400 4.4 4.2 105 8.6 7.0 123 ROACH 9700 3.2 5.0 64 5.8 6.7 87 SAND LAKE 10080 9.6 9.8 98 10.9 6.4 170 SOUTH PASS 9040 4.6 5.7 81 6.3 5.6 113 WINDY PEAK 7840 .5 2.3 22 6.1 2.9 210 ----- ----- Basin wide percent of average 71 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.7 2.8 61 6.9 5.0 138 DIVIDE PEAK 8800 5.1 6.2 82 11.0 7.4 149 OLD BATTLE 10000 8.0 9.7 82 11.9 9.5 125 SANDSTONE RS 8150 1.8 3.5 51 8.0 5.7 140 WHISKEY PARK 8950 4.6 7.8 59 9.8 6.9 142 ----- ----- Basin wide percent of average 71 138 UPPER GREEN RIVER BIG SANDY OPENING 9100 4.0 3.5 114 4.2 5.2 81 BLIND BULL SUM 8650 6.0 8.2 73 6.4 6.9 93 EAST RIM DIVIDE 7930 2.1 2.2 95 3.3 4.8 69 ELKHART PARK G.S. 9400 3.2 3.5 91 4.2 5.1 82 GROS VENTRE SUMMIT 8775 4.7 4.1 115 5.4 5.1 106 KENDALL R.S. 7740 2.8 3.0 93 3.6 4.9 73 LOOMIS PARK 8240 3.1 3.8 82 4.6 6.0 77 NEW FORK LAKE 8340 2.1 2.4 88 2.7 4.6 59 SNIDER BASIN 8250 2.5 3.2 78 3.4 4.8 71 SPRING CREEK DIVIDE 9000 5.2 6.7 78 6.6 8.2 80 TRIPLE PEAK 8500 5.1 6.1 84 6.8 9.9 69 ----- ----- Basin wide percent of average 87 78 LOWER GREEN RIVER HAMS FORK 7840 1.3 2.1 62 3.1 4.3 72 HEWINTA 9500 1.8 2.6 69 4.4 4.7 94 HICKERSON PARK 9150 1.4 1.7 82 4.2 3.8 111 HOLE-IN-ROCK 9150 .9 1.5 60 4.5 3.8 118 INDIAN CREEK 9425 5.4 6.8 79 5.1 8.0 64 KELLEY R.S. 8180 2.5 3.8 66 4.1 6.0 68 STEEL CREEK PARK 10100 3.6 5.3 68 5.4 4.9 110 ----- ----- Basin wide percent of average 71 87 UPPER BEAR RIVER BUG LAKE 7950 2.7 5.5 49 4.8 6.9 70 HAYDEN FORK 9400 3.0 4.1 73 5.8 5.9 98 KELLEY R.S. 8180 2.5 3.8 66 4.1 6.0 68 LILY LAKE 9050 3.8 3.9 97 6.3 5.3 119 MONTE CRISTO 8960 5.1 6.9 74 8.0 8.5 94 SALT RIVER SUMMIT 7600 1.9 2.5 76 4.3 5.4 80 TRIAL LAKE 9960 4.0 6.6 61 5.9 7.7 77 ----- ----- Basin wide percent of average 69 86 ----------------------------------------------------------------------------- -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.